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article stringlengths 4.36k 149k | summary stringlengths 32 3.35k | section_headings listlengths 1 91 | keywords listlengths 0 141 | year stringclasses 13
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|---|---|---|---|---|---|
The regulation of stem cell proliferation in plants is controlled by intercellular signaling pathways driven by the diffusible CLAVATA3 ( CLV3p ) peptide . CLV3p perception is thought to be mediated by an overlapping array of receptors in the stem cell niche including the transmembrane receptor kinase CLV1 , Receptor-L... | The proliferation of plant stem cells in above ground tissues is controlled by a suite of receptors in response to the CLAVATA3 peptide ligand . Receptor signaling in response to CLAVATA3 prevents over-proliferation of stem cells . It is unclear what the functional relationship is between the proposed CLAVATA3 receptor... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biotechnology",
"plant",
"anatomy",
"gene",
"regulation",
"plant",
"physiology",
"plant",
"science",
"stem",
"cells",
"genetically",
"modified",
"plants",
"plants",
"flowering",
"plants",
"flower",
"anatomy",
"genetic",
"engineering",
"genetically",
"modified",
"organi... | 2017 | CLAVATA1 controls distinct signaling outputs that buffer shoot stem cell proliferation through a two-step transcriptional compensation loop |
Several approaches exist to ascertain the connectivity of the brain , and these approaches lead to markedly different topologies , often incompatible with each other . Specifically , recent single-cell recording results seem incompatible with current structural connectivity models . We present a novel method that combi... | Visual perception is very important to us , something we can easily come to realize if we imagine ourselves blind . The visual system consists of numerous interconnected brain areas . If we are to understand the functioning of the visual system , then we will need to understand the connectivity between these areas . Cu... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"neuroscience/theoretical",
"neuroscience",
"neuroscience/sensory",
"systems",
"computational",
"biology/computational",
"neuroscience"
] | 2008 | Combining Structural Connectivity and Response Latencies to Model the Structure of the Visual System |
Cellular morphology and associated morphodynamics are widely used for qualitative and quantitative assessments of cell state . Here we implement a framework to profile cellular morphodynamics based on an adaptive decomposition of local cell boundary motion into instantaneous frequency spectra defined by the Hilbert-Hua... | Many studies in cell biology employ global shape descriptors to probe mechanisms of cell morphogenesis . Here , we implement a framework in this paper to profile cellular morphodynamics very locally . We employ the Hilbert-Huang transform ( HHT ) to extract along the entire cell edge spectra of instantaneous edge motio... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"velocity",
"biosensors",
"cell",
"physiology",
"cell",
"motility",
"classical",
"mechanics",
"engineering",
"and",
"technology",
"light",
"electromagnetic",
"radiation",
"cell",
"polarity",
"developmental",
"biology",
"mathematics",
"statistical",
"distributions",
"light",... | 2018 | Profiling cellular morphodynamics by spatiotemporal spectrum decomposition |
During cytokinesis , a contractile ring generates the constricting force to divide a cell into two daughters . This ring is composed of filamentous actin and the motor protein myosin , along with additional structural and regulatory proteins , including anillin . Anillin is a required scaffold protein that links the ac... | Human diseases such as cancer and congenital trisomies arise from loss of genetic material during cell division . Yet in most divisions , cells preserve their genetic integrity by strict coordination of cell membrane cleavage ( cytokinesis ) , with accurate separation of genetic material ( mitosis ) . Thus , understand... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"phosphorylation",
"medicine",
"and",
"health",
"sciences",
"immune",
"physiology",
"anaphase",
"hela",
"cells",
"cell",
"cycle",
"and",
"cell",
"division",
"cell",
"processes",
"immunology",
"biological",
"cultures",
"mitosis",
"immunoprecipitation",
"cytokinesis",
"ce... | 2017 | Anillin Phosphorylation Controls Timely Membrane Association and Successful Cytokinesis |
The identification of the H3K4 trimethylase , PRDM9 , as the gene responsible for recombination hotspot localization has provided considerable insight into the mechanisms by which recombination is initiated in mammals . However , uniquely amongst mammals , canids appear to lack a functional version of PRDM9 and may the... | Recombination in mammalian genomes tends to occur within highly localized regions known as recombination hotspots . These hotspots appear to be a ubiquitous feature of mammalian genomes , but tend to not be shared between closely related species despite high levels of DNA sequence similarity . This disparity has been l... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2013 | Genetic Recombination Is Targeted towards Gene Promoter Regions in Dogs |
Leishmania parasites are transmitted in the presence of sand fly saliva . Together with the parasite , the sand fly injects biologically active salivary components that favorably change the environment at the feeding site . Exposure to bites or to salivary proteins results in immunity specific to these components . Mic... | In vector-borne diseases , the role of vectors has been overlooked in the search for vaccines . Nonetheless , there is a body of evidence showing the importance of salivary proteins of vectors in pathogen transmission . Leishmaniasis is a neglected vector-borne disease transmitted by sand flies . Pre-exposure to sand f... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"infectious",
"diseases/neglected",
"tropical",
"diseases",
"immunology/immunity",
"to",
"infections"
] | 2008 | Immunity to Distinct Sand Fly Salivary Proteins Primes the Anti-Leishmania Immune Response towards Protection or Exacerbation of Disease |
Optimists hold positive a priori beliefs about the future . In Bayesian statistical theory , a priori beliefs can be overcome by experience . However , optimistic beliefs can at times appear surprisingly resistant to evidence , suggesting that optimism might also influence how new information is selected and learned . ... | The optimism bias is regarded as one of the most prevalent and robust cognitive biases documented in psychology and behavioral economics . In individuals , trait optimism is usually measured using self-report questionnaires . However , choices in simple behavioral tasks can also be used to infer how optimistic people a... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"psychology",
"cognitive",
"psychology",
"social",
"sciences",
"behavior",
"personality",
"biology",
"and",
"life",
"sciences",
"neuropsychology",
"cognitive",
"science",
"neuroscience"
] | 2014 | Optimism as a Prior Belief about the Probability of Future Reward |
Charcot-Marie-Tooth disease ( CMT ) is a heterogeneous group of peripheral neuropathies with diverse genetic causes . In this study , we identified p . I43N mutation in PMP2 from a family exhibiting autosomal dominant demyelinating CMT neuropathy by whole exome sequencing and characterized the clinical features . The a... | Isolation of causative mutation is still challenging in genetic diseases with a variety of genetic causes . We discovered a mutation in a novel gene from a family exhibiting a peripheral neuropathy by virtue of next-generation sequencing . Although the family shows characteristic clinical features of hereditary motor a... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"medicine",
"and",
"health",
"sciences",
"legs",
"diagnostic",
"radiology",
"charcot-marie-tooth",
"disease",
"genetic",
"diseases",
"limbs",
"(anatomy)",
"magnetic",
"resonance",
"imaging",
"animal",
"models",
"mutation",
"model",
"organisms",
"bioassays",
"and",
"phys... | 2016 | A Mutation in PMP2 Causes Dominant Demyelinating Charcot-Marie-Tooth Neuropathy |
The prevalence of antibiotic resistance genes in pathogenic bacteria is a major challenge to treating many infectious diseases . The spread of these genes is driven by the strong selection imposed by the use of antibacterial drugs . However , in the absence of drug selection , antibiotic resistance genes impose a fitne... | For many years , pneumococcal infections have been usually treated with β-lactams . However , the rapid emergence of β-lactam resistance has complicated the antimicrobial treatment of these infections in the last two decades . The emergence and stability of antibiotic resistance is a complex biological process driven b... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"medicine",
"infectious",
"diseases",
"streptococci",
"medical",
"microbiology",
"biology",
"microbiology",
"bacterial",
"pathogens"
] | 2011 | Compensatory Evolution of pbp Mutations Restores the Fitness Cost Imposed by β-Lactam Resistance in Streptococcus pneumoniae |
Nonsyndromic hearing impairment ( NSHI ) is a highly heterogeneous condition with more than eighty known causative genes . However , in the clinical setting , a large number of NSHI families have unexplained etiology , suggesting that there are many more genes to be identified . In this study we used SNP-based linkage ... | It is known that hearing impairment running in families can be caused by mutations in more than eighty different genes . However , there are still families where the responsible gene is unknown . By studying a large Danish family with dominant inherited hearing impairment , we found that the disorder cosegregates with ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | A Novel Locus Harbouring a Functional CD164 Nonsense Mutation Identified in a Large Danish Family with Nonsyndromic Hearing Impairment |
A significant increase in microcephaly incidence was reported in Northeast Brazil at the end of 2015 , which has since been attributed to an epidemic of Zika virus ( ZIKV ) infections earlier that year . Further incidence of congenital Zika syndrome ( CZS ) was expected following waves of ZIKV infection throughout Lati... | Zika virus ( ZIKV ) infection is associated with the rise of microcephaly cases observed in Northeast Brazil at the end of 2015 . For women in endemic or at-risk areas , understanding how the relationship between time of infection and microcephaly risk varies through pregnancy is important in informing family planning ... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results/Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"microcephaly",
"pathology",
"and",
"laboratory",
"medicine",
"maternal",
"health",
"obstetrics",
"and",
"gynecology",
"pathogens",
"geographical",
"locations",
"microbiology",
"vector-borne",
"diseases",
"viruses",
"developmental",
... | 2018 | Potential inconsistencies in Zika surveillance data and our understanding of risk during pregnancy |
One of the outstanding challenges in comparative genomics is to interpret the evolutionary importance of regulatory variation between species . Rigorous molecular evolution-based methods to infer evidence for natural selection from expression data are at a premium in the field , and to date , phylogenetic approaches ha... | Comparative transcriptomic studies routinely identify thousands of genes differentially expressed between species . The central question in the field is whether and how such regulatory changes have been the product of natural selection . Can the signal of evolutionarily relevant expression divergence be detected amid t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [] | 2013 | Inferring Evolutionary Histories of Pathway Regulation from Transcriptional Profiling Data |
To determine the relationship between plasma zinc values and the severity of dengue viral infection ( DVI ) and DVI-caused hepatitis . A prospective cohort study was conducted during 2008–2010 in hospitalized children aged <15 years confirmed with DVI . Complete blood count , aspartate aminotransferase ( AST ) , alanin... | Dengue viral infection ( DVI ) is endemic in tropical counties and severe DVI is a significant cause of death , especially in children . Increased vascular endothelial permeability during the defervescence stage of DVI leading to plasma leakage plays an important role in dengue disease severity . Zinc is a protective a... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine"
] | 2013 | Is Zinc Concentration in Toxic Phase Plasma Related to Dengue Severity and Level of Transaminases? |
Production of protein containing lengthy stretches of polyglutamine encoded by multiple repeats of the trinucleotide CAG is a hallmark of Huntington’s disease ( HD ) and of a variety of other inherited degenerative neurological and neuromuscular disorders . Earlier work has shown that interference with production of th... | Huntington’s disease ( HD ) is an inherited genetic disorder that leads to degeneration of brain cells and consequently to abnormal body movements , decreased mental capacity , and death . It is one of a group of untreatable degenerative neurological and neuromuscular diseases caused by expansion of gene segments conta... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Effects on Murine Behavior and Lifespan of Selectively Decreasing Expression of Mutant Huntingtin Allele by Supt4h Knockdown |
Orderly chromosome segregation during the first meiotic division requires meiotic recombination to form crossovers between homologous chromosomes ( homologues ) . Members of the minichromosome maintenance ( MCM ) helicase family have been implicated in meiotic recombination . In addition , they have roles in initiation... | Each chromosome is present in two distinct but homologous copies in diploid organisms . To generate haploid gametes suitable for fertilization , these homologous chromosomes must segregate during meiosis . To ensure correct chromosome segregation , homologous chromosomes must align and become connected by inter-homolog... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"meiosis",
"homologous",
"chromosomes",
"spermatocytes",
"cell",
"cycle",
"and",
"cell",
"division",
"cell",
"processes",
"germ",
"cells",
"oocytes",
"dna",
"sperm",
"homologous",
"recombination",
"animal",
"cells",
"chromosome",
"biology",
"proteins",
"recombinant",
... | 2016 | Alignment of Homologous Chromosomes and Effective Repair of Programmed DNA Double-Strand Breaks during Mouse Meiosis Require the Minichromosome Maintenance Domain Containing 2 (MCMDC2) Protein |
We have investigated the pathogenicity of tsetse ( Glossina pallidipes ) -transmitted cloned strains of Trypanosoma brucei rhodesiense in vervet monkeys . Tsetse flies were confirmed to have mature trypanosome infections by xenodiagnosis , after which nine monkeys were infected via the bite of a single infected fly . C... | Sleeping sickness is caused by a species of trypanosome blood parasite that is transmitted by tsetse flies . To understand better how infection with this parasite leads to disease , we provide here the most detailed description yet of the course of infection and disease onset in vervet monkeys . One infected tsetse fly... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Discussion"
] | [
"infectious",
"diseases/infectious",
"diseases",
"of",
"the",
"nervous",
"system",
"infectious",
"diseases",
"infectious",
"diseases/neglected",
"tropical",
"diseases",
"pathology/hematology",
"infectious",
"diseases/protozoal",
"infections"
] | 2008 | Trypanosoma brucei rhodesiense Transmitted by a Single Tsetse Fly Bite in Vervet Monkeys as a Model of Human African Trypanosomiasis |
Pathogenic bacteria use interconnected multi-layered regulatory networks , such as quorum sensing ( QS ) networks to sense and respond to environmental cues and external and internal bacterial cell signals , and thereby adapt to and exploit target hosts . Despite the many advances that have been made in understanding Q... | Bacterial cells can communicate with one another about their surrounding environment . This information can be in the form of small self-secreted molecules acting as signals to activate or inhibit the expression of genes . Pseudomonas aeruginosa is an environmental bacterium that infects diverse organisms from plants t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"infectious",
"diseases/nosocomial",
"and",
"healthcare-associated",
"infections",
"infectious",
"diseases",
"microbiology/microbial",
"physiology",
"and",
"metabolism",
"biotechnology/applied",
"microbiology",
"microbiology",
"infectious",
"diseases/bacterial",
"infections",
"micr... | 2010 | Homeostatic Interplay between Bacterial Cell-Cell Signaling and Iron in Virulence |
All herpesviruses have mechanisms for passing through cell junctions , which exclude neutralizing antibodies and offer a clear path to neighboring , uninfected cells . In the case of herpes simplex virus type 1 ( HSV-1 ) , direct cell-to-cell transmission takes place between epithelial cells and sensory neurons , where... | It is estimated that 67% of the global population is infected with herpes simplex virus type 1 ( HSV-1 ) . This virus resides in sensory neurons in a quiescent state but periodically reactivates , producing virus particles that travel down the axon to infect epithelial cells of the skin , where it can be transmitted to... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"flow",
"cytometry",
"cell",
"physiology",
"phosphorylation",
"vero",
"cells",
"biological",
"cultures",
"microbiology",
"viral",
"structure",
"membrane",
"proteins",
"cellular",
"structures",
"and",
"organelles",
"research",
"and",
"analysis",
"methods",
"proteins",
"c... | 2018 | The HSV-1 mechanisms of cell-to-cell spread and fusion are critically dependent on host PTP1B |
Tolerance to high levels of ethanol is an ecologically and industrially relevant phenotype of microbes , but the molecular mechanisms underlying this complex trait remain largely unknown . Here , we use long-term experimental evolution of isogenic yeast populations of different initial ploidy to study adaptation to inc... | Organisms can evolve resistance to specific stress factors , which allows them to thrive in environments where non-adapted organisms fail to grow . However , the molecular mechanisms that underlie adaptation to complex stress factors that interfere with basic cellular processes are poorly understood . In this study , w... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Adaptation to High Ethanol Reveals Complex Evolutionary Pathways |
Staphylococcus aureus is an opportunistic pathogen that produces many virulence factors . Two major families of which are the staphylococcal superantigens ( SAgs ) and the Staphylococcal Superantigen-Like ( SSL ) exoproteins . The former are immunomodulatory toxins that induce a Vβ-specific activation of T cells , whil... | The ability of Staphylococcus aureus to cause disease can be attributed to the wide range of toxins and immune evasion molecules it produces . The 25-member superantigen ( SAg ) family of toxins disrupts adaptive immunity by activating large proportions of T cells . In contrast , the structurally-related 14-member Stap... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"binding",
"cell",
"physiology",
"medicine",
"and",
"health",
"sciences",
"chemical",
"characterization",
"body",
"fluids",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"immunology",
"microbiology",
"staphylococcus",
"aureus",
"animal",
"models",
"... | 2017 | Staphylococcal enterotoxin-like X (SElX) is a unique superantigen with functional features of two major families of staphylococcal virulence factors |
Many genes of large double-stranded DNA viruses have a cellular origin , suggesting that host-to-virus horizontal transfer ( HT ) of DNA is recurrent . Yet , the frequency of these transfers has never been assessed in viral populations . Here we used ultra-deep DNA sequencing of 21 baculovirus populations extracted fro... | While gene exchange is known to occur between viruses and their hosts , this phenomenon has never been studied at the level of the viral population . Here we report that each time a virus from the Baculoviridae family infects a moth , a large number ( dozens to hundreds ) and high diversity of moth DNA sequences ( 86 d... | [
"Abstract",
"Introduction",
"Results",
"and",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"sequencing",
"techniques",
"invertebrates",
"moths",
"and",
"butterflies",
"microbiology",
"animals",
"invertebrate",
"genomics",
"genomic",
"databases",
"viral",
"genome",
"genome",
"analysis",
"sequence",
"motif",
"analysis",
"molecular",
"biology",
"techniques",
"micr... | 2016 | Continuous Influx of Genetic Material from Host to Virus Populations |
The mechanisms by which the gut luminal environment is disturbed by the immune system to foster pathogenic bacterial growth and survival remain incompletely understood . Here , we show that STAT2 dependent type I IFN signaling contributes to the inflammatory environment by disrupting hypoxia enabling the pathogenic S .... | The spread of invading microbes is frequently contained by an inflammatory response . Yet , some pathogenic microbes have evolved to utilize inflammation for niche generation and to support their metabolism . Here , we demonstrate that S . Typhimurium exploits type I IFN signaling , a prototypical anti-viral response ,... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"blood",
"cells",
"medicine",
"and",
"health",
"sciences",
"immune",
"cells",
"microbiome",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"immunology",
"microbiology",
"salmonellosis",
"bacterial",
"diseases",
"signs",
"and",
"symptoms",
"enterobacteriaceae",... | 2019 | STAT2 dependent Type I Interferon response promotes dysbiosis and luminal expansion of the enteric pathogen Salmonella Typhimurium |
Temperate phages infect bacteria by injecting their DNA into bacterial cells , where it becomes incorporated into the host genome as a prophage . In the genome of Bacillus subtilis 168 , an active prophage , SPβ , is inserted into a polysaccharide synthesis gene , spsM . Here , we show that a rearrangement occurs durin... | Integration of prophages into protein-coding sequences of the host chromosome generally results in loss of function of the interrupted gene . In the endospore-forming organism Bacillus subtilis strain 168 , the SPβ prophage is inserted into a previously-uncharacterized spore polysaccharide synthesis gene , spsM . In ve... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"bacteriology",
"gram",
"positive",
"bacteria",
"viruses",
"biochemistry",
"bacterial",
"physiology",
"bacteriophages",
"bacterial",
"genes",
"genetics",
"biology",
"and",
"life",
"sciences",
"dna",
"microbiology",
"dna",
"recombination",
"bacterial",
"spores",
"organisms... | 2014 | Developmentally-Regulated Excision of the SPβ Prophage Reconstitutes a Gene Required for Spore Envelope Maturation in Bacillus subtilis |
Middle East respiratory syndrome coronavirus ( MERS-CoV ) causes severe respiratory infections that can be life-threatening . To establish an infection and spread , MERS-CoV , like most other viruses , must navigate through an intricate network of antiviral host responses . Besides the well-known type I interferon ( IF... | Human coronaviruses generally cause relatively mild respiratory disease . In the past 15 years , the world has witnessed the emergence of two coronaviruses with high mortality rates in humans; severe acute respiratory syndrome coronavirus ( SARS-CoV ) in 2002 and Middle East respiratory syndrome coronavirus ( MERS-CoV ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"transfection",
"fluorescence",
"imaging",
"medicine",
"and",
"health",
"sciences",
"coronaviruses",
"cellular",
"stress",
"responses",
"pathology",
"and",
"laboratory",
"medicine",
"respiratory",
"infections",
"pathogens",
"cell",
"processes",
"microbiology",
"pulmonology"... | 2016 | Middle East Respiratory Coronavirus Accessory Protein 4a Inhibits PKR-Mediated Antiviral Stress Responses |
Foodborne disease outbreaks of recent years demonstrate that due to increasingly interconnected supply chains these type of crisis situations have the potential to affect thousands of people , leading to significant healthcare costs , loss of revenue for food companies , and—in the worst cases—death . When a disease ou... | Response to foodborne disease outbreaks is complicated by globalization of our food supply chains . Rapid identification of contaminated products is essential to limit the damage caused by foodborne disease . Worldwide , foodborne disease outbreaks are responsible for $9B a year in medical costs and over $75B in econom... | [
"Abstract",
"Introduction",
"Methods",
"Results/Discussion"
] | [
"algorithms",
"public",
"and",
"occupational",
"health",
"infectious",
"diseases",
"computer",
"and",
"information",
"sciences",
"medicine",
"and",
"health",
"sciences",
"environmental",
"health",
"mathematics",
"epidemiology",
"health",
"care",
"applied",
"mathematics",
... | 2014 | A Likelihood-Based Approach to Identifying Contaminated Food Products Using Sales Data: Performance and Challenges |
Previous studies of the genetic landscape of Ireland have suggested homogeneity , with population substructure undetectable using single-marker methods . Here we have harnessed the haplotype-based method fineSTRUCTURE in an Irish genome-wide SNP dataset , identifying 23 discrete genetic clusters which segregate with ge... | A recent genetic study of the UK ( People of the British Isles; PoBI ) expanded our understanding of population history of the islands , using newly-developed , powerful techniques that harness the rich information embedded in chunks of genetic code called haplotypes . These methods revealed subtle regional diversity a... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Methods"
] | [
"geomorphology",
"biogeography",
"irish",
"people",
"ecology",
"and",
"environmental",
"sciences",
"european",
"union",
"landforms",
"population",
"genetics",
"geographical",
"locations",
"topography",
"ireland",
"ethnicities",
"multivariate",
"analysis",
"mathematics",
"st... | 2018 | Insular Celtic population structure and genomic footprints of migration |
Chromosomal inversion polymorphisms are thought to play a role in adaptive divergence , but the genes conferring adaptive benefits remain elusive . Here we study 2La , a common polymorphic inversion in the African malaria vector Anopheles gambiae . The frequency of 2La varies clinally and seasonally in a pattern sugges... | A chromosomal inversion occurs when part of the chromosome breaks , rotates 180 degrees , and rejoins the broken chromosome . The result is a chromosome carrying a segment whose gene order is reversed . Whereas the physical rearrangement itself may have no direct consequences on gene function , recombination between al... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods",
"Supporting",
"Information"
] | [
"evolutionary",
"biology",
"anopheles",
"genetics",
"and",
"genomics"
] | 2007 | Localization of Candidate Regions Maintaining a Common Polymorphic Inversion (2La) in Anopheles gambiae |
Memories are assumed to be formed by sets of synapses changing their structural or functional performance . The efficacy of forming new memories declines with advancing age , but the synaptic changes underlying age-induced memory impairment remain poorly understood . Recently , we found spermidine feeding to specifical... | Neurons communicate by sending impulses , in the form of secretion of neurotransmitters , across small spaces called synapses . It is these synapses that undergo structural and functional changes during formation and retrieval of memories . Though alterations in synaptic performance are believed to accompany aging , th... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"invertebrates",
"plant",
"anatomy",
"cognitive",
"neurology",
"medicine",
"and",
"health",
"sciences",
"fluorescence",
"imaging",
"nervous",
"system",
"electrophysiology",
"neuroscience",
"learning",
"and",
"memory",
"animals",
"animal",
"models",
"plant",
"science",
"... | 2016 | Spermidine Suppresses Age-Associated Memory Impairment by Preventing Adverse Increase of Presynaptic Active Zone Size and Release |
The rapid evolution of influenza viruses presents difficulties in maintaining the optimal efficiency of vaccines . Amino acid substitutions result in antigenic drift , a process whereby antisera raised in response to one virus have reduced effectiveness against future viruses . Interestingly , while amino acid substitu... | H3N2-type influenza is responsible for widespread disease and significant mortality . The virus evolves rapidly , changing its antigenic properties , allowing it to escape clearance by the immune response as well as complicating the maintenance of vaccine effectiveness . Part of this evolution has been the rapid increa... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"computational",
"biology/evolutionary",
"modeling",
"infectious",
"diseases/viral",
"infections",
"evolutionary",
"biology/microbial",
"evolution",
"and",
"genomics",
"virology/virus",
"evolution",
"and",
"symbiosis"
] | 2008 | Changing Selective Pressure during Antigenic Changes in Human Influenza H3 |
Hepatitis B is a DNA virus that infects liver cells and can cause both acute and chronic disease . It is believed that both viral and host factors are responsible for determining whether the infection is cleared or becomes chronic . Here we investigate the mechanism of protection by developing a mathematical model of t... | Hepatitis B vaccine induces life-long protection in vaccinated individuals . In the absence of vaccination , however , hepatitis B virus can cause both self-limiting and chronic disease . We investigate whether antibodies against hepatitis B play a role in virus clearance . We developed a mathematical model that descri... | [
"Abstract",
"Introduction",
"Methods",
"Discussion"
] | [
"infectious",
"diseases",
"medicine",
"and",
"health",
"sciences",
"mathematics",
"applied",
"mathematics",
"biology",
"and",
"life",
"sciences",
"immunology",
"physical",
"sciences",
"immune",
"response"
] | 2014 | Antibody Responses during Hepatitis B Viral Infection |
International melioidosis treatment guidelines recommend a minimum 10 to 14 days’ intravenous antibiotic therapy ( intensive phase ) , followed by 3 to 6 months’ oral therapy ( eradication phase ) . This approach is associated with rates of relapse , defined as recurrence following the eradication phase , that can exce... | Melioidosis is an infection caused by the soil bacterium Burkholderia pseudomallei; patients usually present with pneumonia , blood-stream infection and/or skin or internal organ abscesses . Melioidosis occurs most commonly in northern Australia and parts of Southeast Asia . It has a high mortality rate and , with stan... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [] | 2015 | Intravenous Therapy Duration and Outcomes in Melioidosis: A New Treatment Paradigm |
Noroviruses are major pathogens associated with acute gastroenteritis worldwide . Their RNA genomes are diverse , with two major genogroups ( GI and GII ) comprised of at least 28 genotypes associated with human disease . To elucidate mechanisms underlying norovirus diversity and evolution , we used a large-scale genom... | Efforts are underway to develop vaccines against norovirus , a leading cause of acute gastroenteritis . The purpose of our study was to understand how norovirus strains within different genotypes evolve and adapt as they are transmitted in the human population . Using large-scale genomics and computational tools develo... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"organismal",
"evolution",
"medicine",
"and",
"health",
"sciences",
"microbial",
"mutation",
"pathology",
"and",
"laboratory",
"medicine",
"genome",
"evolution",
"pathogens",
"variant",
"genotypes",
"microbiology",
"genetic",
"mapping",
"viruses",
"rna",
"viruses",
"phy... | 2017 | Static and Evolving Norovirus Genotypes: Implications for Epidemiology and Immunity |
Schistosomes cause more mortality and morbidity than any other human helminth , but control primarily relies on a single drug that kills adult worms . The newly transformed schistosomulum stage is susceptible to the immune response and is a target for vaccine development and rational drug design . To identify genes whi... | Schistosome blood flukes cause more mortality and morbidity than any other human worm infection , but current control methods primarily rely on a single drug . There is a desperate need for new approaches to control this parasite , including vaccines . People become infected when the free-swimming larva , the cercaria ... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [
"genetics",
"and",
"genomics/gene",
"expression"
] | 2010 | Transcriptional Changes in Schistosoma mansoni during Early Schistosomula Development and in the Presence of Erythrocytes |
Acinetobacter baumannii , A . nosocomialis , and A . pittii have recently emerged as opportunistic human pathogens capable of causing severe human disease; however , the molecular mechanisms employed by Acinetobacter to cause disease remain poorly understood . Many pathogenic members of the genus Acinetobacter contain ... | Members of the genus Acinetobacter , specifically , A . baumannii , A . pittii , and A . nosocomialis , have rapidly emerged as opportunistic human pathogens particularly targeting the immunocompromised patient population . Of significant concern is the fact that many Acinetobacter-induced infections are caused by mult... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2016 | Medically Relevant Acinetobacter Species Require a Type II Secretion System and Specific Membrane-Associated Chaperones for the Export of Multiple Substrates and Full Virulence |
The plant hormone auxin regulates numerous growth and developmental processes throughout the plant life cycle . One major function of auxin in plant growth and development is the regulation of cell expansion . Our previous studies have shown that SMALL AUXIN UP RNA ( SAUR ) proteins promote auxin-induced cell expansion... | The plant hormone auxin is a major regulator of cell expansion , which is a fundamental cellular process essential for plant growth and development . The acid growth theory was proposed in the 1970s to explain auxin-induced cell expansion . However , the mechanistic basis of auxin-induced cell expansion via acid growth... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"plant",
"anatomy",
"plant",
"growth",
"and",
"development",
"enzymes",
"plant",
"embryo",
"anatomy",
"brassica",
"enzymology",
"phosphatases",
"hormones",
"membrane",
"proteins",
"developmental",
"biology",
"plant",
"science",
"model",
"organisms",
"plant",
"hormones",... | 2018 | A subset of plasma membrane-localized PP2C.D phosphatases negatively regulate SAUR-mediated cell expansion in Arabidopsis |
Entamoeba histolytica is the etiological agent of human amoebic colitis and liver abscess , and causes a high level of morbidity and mortality worldwide , particularly in developing countries . There are a number of studies that have shown a crucial role for Ca2+ and its binding protein in amoebic biology . EhCaBP5 is ... | Entamoeba histolytica is the etiologic agent of amoebiasis , a major cause of morbidity and mortality in developing countries . The genome of this organism encodes 27 EF-hand containing calcium binding proteins suggesting an intricate Ca2+ signalling system that plays crucial role in phagocytosis and pathogenesis . Cal... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"biochemistry",
"protein",
"interactions",
"molecular",
"complexes",
"proteins",
"protein",
"structure",
"biology",
"and",
"life",
"sciences",
"molecular",
"biology"
] | 2014 | Crystal Structure of Calcium Binding Protein-5 from Entamoeba histolytica and Its Involvement in Initiation of Phagocytosis of Human Erythrocytes |
Oligomerization is a functional requirement for many proteins . The interfacial interactions and the overall packing geometry of the individual monomers are viewed as important determinants of the thermodynamic stability and allosteric regulation of oligomers . The present study focuses on the role of the interfacial i... | Protein function requires a three-dimensional structure with specific dynamic features for catalytic and binding events , and , in many cases , the structure results from the assembly of more than one polypeptide chain ( also called monomer or subunit ) to form an oligomer or multimer . Proteins such as hemoglobin or c... | [
"Abstract",
"Introduction",
"Results/Discussion",
"Methods"
] | [
"protein",
"interactions",
"enzymes",
"macromolecular",
"assemblies",
"globular",
"proteins",
"protein",
"structure",
"biophysics",
"simulations",
"biochemistry",
"simulations",
"proteins",
"enzyme",
"regulation",
"biology",
"proteomics",
"biophysics",
"macromolecular",
"comp... | 2011 | Changes in Dynamics upon Oligomerization Regulate Substrate Binding and Allostery in Amino Acid Kinase Family Members |
Recessive skeletal dysplasia , characterized by joint- and/or hip bone-enlargement , was mapped within the critical region for a major quantitative trait locus ( QTL ) influencing carcass weight; previously named CW-3 in Japanese Black cattle . The risk allele was on the same chromosome as the Q allele that increases c... | Livestock are typically subjected to intensive artificial selection for traits of economic value to producers . In spite of this strong selection , some major quantitative trait loci ( QTLs ) for an economically important trait never reach fixation in the population . Several studies have revealed that such QTLs are ac... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Non-synonymous FGD3 Variant as Positional Candidate for Disproportional Tall Stature Accounting for a Carcass Weight QTL (CW-3) and Skeletal Dysplasia in Japanese Black Cattle |
Leptospirosis is a worldwide zoonotic disease and a serious , under-reported public health problem , particularly in rural areas of Tanzania . In the Katavi-Rukwa ecosystem , humans , livestock and wildlife live in close proximity , which exposes them to the risk of a number of zoonotic infectious diseases , including ... | Leptospirosis is a disease of worldwide significance , and it is also an important zoonotic disease , particularly in developing countries . Subclinically infected rodents maintain leptospires in nature , and some that recover from the primary leptospiral infection may release the bacterium in their urine for the rest ... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [] | 2015 | Predominant Leptospiral Serogroups Circulating among Humans, Livestock and Wildlife in Katavi-Rukwa Ecosystem, Tanzania |
The infective schistosome cercaria develops within the intramolluscan daughter sporocyst from an undifferentiated germ ball , during which synthesis of proteins essential for infection occurs . When the aquatic cercaria locates the mammalian host it rapidly penetrates into the epidermis using glandular secretions . It ... | The schistosome cercaria develops from undifferentiated germ balls within the daughter sporocyst located in the hepatopancreas of its snail intermediate host . This is where the proteins it uses to infect humans are synthesised . After a brief free life in fresh water , if the cercaria locates a host , it infects by di... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"and",
"Discussion"
] | [
"medicine",
"infectious",
"diseases",
"schistosomiasis",
"functional",
"genomics",
"gene",
"expression",
"genetics",
"biology",
"genomics",
"parasitic",
"diseases",
"genetics",
"and",
"genomics",
"dna",
"transcription"
] | 2011 | Gene Expression Patterns in Larval Schistosoma mansoni Associated with Infection of the Mammalian Host |
How does the growth of a virus depend on the linear arrangement of genes in its genome ? Answering this question may enhance our basic understanding of virus evolution and advance applications of viruses as live attenuated vaccines , gene-therapy vectors , or anti-tumor therapeutics . We used a mathematical model for v... | Although many viruses are linked to diseases that adversely impact the health of their human , animal , and plant hosts , viruses could help promote wellness and treat disease if their “good traits” could be harnessed . Potentially useful virus traits include their abilities to stimulate a robust immune response , targ... | [
"Abstract",
"Introduction",
"Results/Discussion",
"Methods"
] | [
"evolutionary",
"biology/microbial",
"evolution",
"and",
"genomics",
"virology/viral",
"replication",
"and",
"gene",
"regulation",
"computational",
"biology/systems",
"biology"
] | 2009 | Computational Fitness Landscape for All Gene-Order Permutations of an RNA Virus |
Understanding the rat neurochemical connectome is fundamental for exploring neuronal information processing . By using advanced data mining , supervised machine learning , and network analysis , this study integrates over 5 decades of neuroanatomical investigations into a multiscale , multilayer neurochemical connectom... | The mammalian brain consists of a network of chemically diverse , multiscale , and multilayer neuronal wiring patterns that form the physical infrastructure underlying the processing of motoric , sensory , emotional , and cognitive information . Decades of histological track-tracing studies have generated a set of high... | [
"Abstract",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"methods",
"and",
"resources",
"neural",
"networks",
"nervous",
"system",
"vertebrates",
"neuroscience",
"animals",
"mammals",
"data",
"mining",
"primates",
"animal",
"models",
"model",
"organisms",
"mathematics",
"brain",
"map... | 2017 | A multiscale cerebral neurochemical connectome of the rat brain |
Changes in synaptic efficacy are believed to form the cellular basis for memory . Protein synthesis in dendrites is needed to consolidate long-term synaptic changes . Many signals converge to regulate dendritic protein synthesis , including synaptic and cellular activity , and growth factors . The coordination of these... | Memory formation involves the controlled production of new proteins close to the site of input stimuli on nerve cells . Strong inputs , in combination with growth factors , stimulate the synthesis of several kinds of synaptic proteins . These new proteins are believed to participate in remodeling the contacts between c... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"computational",
"biology/computational",
"neuroscience",
"neuroscience/neural",
"homeostasis",
"neuroscience/neuronal",
"signaling",
"mechanisms",
"computational",
"biology/signaling",
"networks",
"computational",
"biology/systems",
"biology"
] | 2009 | Signaling Logic of Activity-Triggered Dendritic Protein Synthesis: An mTOR Gate But Not a Feedback Switch |
Collective decision making and especially leadership in groups are among the most studied topics in natural , social , and political sciences . Previous studies have shown that some individuals are more likely to be leaders because of their social power or the pertinent information they possess . One challenge for all ... | Making decisions together to reach a consensus is one of the most important challenges of any society . In some communities , however , some leaders have more weight in the decisions than the other individuals . Similar rules exist in animal societies . Studies on animal groups have shown that some individuals are more... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"ecology/evolutionary",
"ecology",
"ecology/behavioral",
"ecology",
"evolutionary",
"biology/animal",
"behavior",
"computational",
"biology/evolutionary",
"modeling",
"computational",
"biology/systems",
"biology"
] | 2010 | Differences in Nutrient Requirements Imply a Non-Linear Emergence of Leaders in Animal Groups |
The helminth parasite Fasciola hepatica secretes cathepsin L cysteine proteases to invade its host , migrate through tissues and digest haemoglobin , its main source of amino acids . Here we investigated the importance of pH in regulating the activity and functions of the major cathepsin L protease FheCL1 . The slightl... | Fasciola hepatica is a helminth parasite that causes liver fluke disease ( fasciolosis ) in domestic animals ( sheep and cattle ) and humans worldwide . Cathepsin L cysteine proteases ( FheCL ) are secreted by the parasite to invade its host , migrate through tissues and to degrade host haemoglobin ( Hb ) , a major sou... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [
"biochemistry/biocatalysis",
"biochemistry/protein",
"chemistry",
"infectious",
"diseases/helminth",
"infections",
"biophysics/protein",
"chemistry",
"and",
"proteomics",
"microbiology/parasitology"
] | 2009 | The Importance of pH in Regulating the Function of the Fasciola hepatica Cathepsin L1 Cysteine Protease |
The current strategy for the elimination of onchocerciasis is based on annual or bi-annual mass drug administration with ivermectin . However , due to several limiting factors there is a growing concern that elimination of onchocerciasis cannot be achieved solely through the current strategy . Additional tools are crit... | Onchocerca volvulus is the causative agent of river blindness that infects approximately 17 million people , mostly in Africa . The current strategy for elimination of O . volvulus focuses on controlling transmission through ivermectin-based mass drug administration programs . Due to potential ivermectin resistance , t... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results",
"Discussion"
] | [
"blood",
"cells",
"invertebrates",
"medicine",
"and",
"health",
"sciences",
"immune",
"physiology",
"onchocerca",
"volvulus",
"immune",
"cells",
"helminths",
"immunology",
"animals",
"onchocerca",
"physiological",
"processes",
"developmental",
"biology",
"antibodies",
"ne... | 2019 | Antibody responses against the vaccine antigens Ov-103 and Ov-RAL-2 are associated with protective immunity to Onchocerca volvulus infection in both mice and humans |
The pathogenesis of dengue shock syndrome ( DSS , grade 3 and 4 ) is not yet completely understood . Several factors are reportedly associated with DSS , a more severe form of dengue infection that reportedly causes 50 times higher mortality compared to that of dengue patients without DSS . However , the results from t... | Dengue is one of the most common viral diseases transmitted by infected mosquitoes . It may range from asymptomatic or self-limiting dengue fever ( DF ) to severe dengue characterized by plasma leakage ( dengue hemorrhagic fever , DHF ) and dengue shock syndrome ( DSS ) . Death from dengue infection occurs mostly in DS... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [] | 2013 | Factors Associated with Dengue Shock Syndrome: A Systematic Review and Meta-Analysis |
A major challenge in analyzing animal behavior is to discover some underlying simplicity in complex motor actions . Here , we show that the space of shapes adopted by the nematode Caenorhabditis elegans is low dimensional , with just four dimensions accounting for 95% of the shape variance . These dimensions provide a ... | A great deal of work has been done in characterizing the genes , proteins , neurons , and circuits that are involved in the biology of behavior , but the techniques used to quantify behavior have lagged behind the advancements made in these areas . Here , we address this imbalance in a domain rich enough to allow compl... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"neuroscience/behavioral",
"neuroscience",
"biophysics",
"neuroscience/motor",
"systems"
] | 2008 | Dimensionality and Dynamics in the Behavior of C. elegans |
A recombinant severe acute respiratory syndrome coronavirus ( SARS-CoV ) lacking the envelope ( E ) protein is attenuated in vivo . Here we report that E protein PDZ-binding motif ( PBM ) , a domain involved in protein-protein interactions , is a major determinant of virulence . Elimination of SARS-CoV E protein PBM by... | SARS-CoV caused a worldwide epidemic infecting 8000 people with a mortality of about 10% . A recombinant SARS-CoV lacking the E protein was attenuated in vivo . The E protein contains a PDZ-binding motif ( PBM ) , a domain potentially involved in the interaction with more than 400 cellular proteins , which highlights i... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"innate",
"immune",
"system",
"medicine",
"and",
"health",
"sciences",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"immunology",
"microbiology",
"emerging",
"infectious",
"diseases",
"infectious",
"diseases",
"inflammation",
"pathogenesis",
"immune",
"respo... | 2014 | The PDZ-Binding Motif of Severe Acute Respiratory Syndrome Coronavirus Envelope Protein Is a Determinant of Viral Pathogenesis |
Spinal muscular atrophy is a severe neurogenic disease that is caused by mutations in the human survival motor neuron 1 ( SMN1 ) gene . SMN protein is required for the assembly of small nuclear ribonucleoproteins and a dramatic reduction of the protein leads to cell death . It is currently unknown how the reduction of ... | Spinal muscular atrophy is a debilitating disease that affects the motor nervous system . The disease is caused by the reduction of the protein survival motor neuron ( SMN ) , which is involved in the assembly of ubiquitous small nuclear ribonucleoproteins . As SMN is required in every cell , it is important to underst... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"animal",
"models",
"medicine",
"developmental",
"biology",
"drosophila",
"melanogaster",
"model",
"organisms",
"neural",
"stem",
"cells",
"stem",
"cells",
"neurological",
"disorders",
"neurology",
"biology",
"cell",
"differentiation",
"motor",
"neuron",
"diseases",
"ad... | 2011 | Survival Motor Neuron Protein Regulates Stem Cell Division, Proliferation, and Differentiation in Drosophila |
The early host response to pathogens is mediated by several distinct pattern recognition receptors . Cytoplasmic RNA helicases including RIG-I and MDA5 have been shown to respond to viral RNA by inducing interferon ( IFN ) production . Previous in vitro studies have demonstrated a direct role for MDA5 in the response t... | The innate immune system possesses an array of sensory molecules which are purposed in detecting viral nucleic acids . Our understanding of how these molecular sensors detect viral nucleic acids continues to evolve . Herein , we demonstrate that MDA5 , a member of the RIG-I-like receptor family , is involved in the det... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"virology/animal",
"models",
"of",
"infection",
"virology",
"immunology/innate",
"immunity",
"infectious",
"diseases/viral",
"infections",
"infectious",
"diseases/respiratory",
"infections",
"immunology/immunity",
"to",
"infections",
"virology/host",
"antiviral",
"responses"
] | 2010 | Melanoma Differentiation-Associated Gene 5 (MDA5) Is Involved in the Innate Immune Response to Paramyxoviridae Infection In Vivo |
Surface proteins of the obligate intracellular bacterium Rickettsia typhi , the agent of murine or endemic typhus fever , comprise an important interface for host-pathogen interactions including adherence , invasion and survival in the host cytoplasm . In this report , we present analyses of the surface exposed protein... | Rickettsia typhi , a member of the typhus group ( TG ) rickettsia , is the agent of murine or endemic typhus fever – a disease exhibiting mild to severe flu-like symptoms resulting in significant morbidity . It is maintained in a flearodent transmission cycle in urban and suburban environments . The obligate intracellu... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"gram",
"negative",
"emerging",
"infectious",
"diseases",
"biology",
"microbiology",
"bacterial",
"pathogens"
] | 2012 | Surface Proteome Analysis and Characterization of Surface Cell Antigen (Sca) or Autotransporter Family of Rickettsia typhi |
Respiratory syncytial virus ( RSV ) causes severe lower respiratory tract infections , yet no vaccines or effective therapeutics are available . ALS-8176 is a first-in-class nucleoside analog prodrug effective in RSV-infected adult volunteers , and currently under evaluation in hospitalized infants . Here , we report t... | Viral RNA polymerase complexes mediate all of the enzymatic functions required for genomic replication and transcription in RNA viruses . Because of their essential role in the virus life cycle , RNA polymerases are major molecular targets for antiviral therapies . Sofosbuvir and mericitabine are related compounds belo... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Molecular Basis for the Selective Inhibition of Respiratory Syncytial Virus RNA Polymerase by 2'-Fluoro-4'-Chloromethyl-Cytidine Triphosphate |
Candida sp . are opportunistic fungal pathogens that colonize the skin and oral cavity and , when overgrown under permissive conditions , cause inflammation and disease . Previously , we identified a central role for the NLRP3 inflammasome in regulating IL-1β production and resistance to dissemination from oral infecti... | In this manuscript we describe a new role for a group of molecules termed the “inflammasome” that process key immune response proteins including interleukin-1-β . In previous work , we and others have shown that the NLRP3 inflammasome is important in protecting from severe fungal infections . We now show that , in addi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"medicine",
"infectious",
"diseases",
"model",
"organisms",
"immunity",
"innate",
"immunity",
"immunology",
"biology",
"microbiology",
"yeast",
"and",
"fungal",
"models",
"candida",
"albicans"
] | 2011 | A Novel Role for the NLRC4 Inflammasome in Mucosal Defenses against the Fungal Pathogen Candida albicans |
Threespine stickleback fish offer a powerful system to dissect the genetic basis of morphological evolution in nature . Marine sticklebacks have repeatedly invaded and adapted to numerous freshwater environments throughout the Northern hemisphere . In response to new diets in freshwater habitats , changes in craniofaci... | Understanding how traits evolve in nature remains a fundamental goal in biology . Threespine stickleback fish offer a powerful system to address this question . Ancestral marine sticklebacks have colonized new freshwater environments , where new traits evolve , including increases in tooth number . This evolved increas... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"medicine",
"and",
"health",
"sciences",
"fish",
"bmp",
"signaling",
"gene",
"regulation",
"vertebrates",
"marine",
"biology",
"marine",
"fish",
"animals",
"osteichthyes",
"freshwater",
"fish",
"digestive",
"system",
"genome",
"complexity",
"dentition",
"genomics",
"m... | 2018 | An intronic enhancer of Bmp6 underlies evolved tooth gain in sticklebacks |
Recent advances in next-generation sequencing approaches have revolutionized our understanding of transcriptional expression in diverse systems . However , measurements of transcription do not necessarily reflect gene translation , the process of ultimate importance in understanding cellular function . To circumvent th... | Recent advances in next-generation sequencing approaches have revolutionized our understanding of transcriptional expression in diverse systems . However , transcriptional expression alone does not necessarily report gene translation , the process of ultimate importance in understanding cellular function . Ribosome pro... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"invertebrates",
"gene",
"regulation",
"messenger",
"rna",
"animals",
"dna",
"transcription",
"animal",
"models",
"drosophila",
"melanogaster",
"model",
"organisms",
"protein",
"synthesis",
"experimental",
"organism",
"systems",
"cellular",
"structures",
"and",
"organelle... | 2017 | Development of a tissue-specific ribosome profiling approach in Drosophila enables genome-wide evaluation of translational adaptations |
Rickettsial infections and Q fever present similarly to other acute febrile illnesses , but are infrequently diagnosed because of limited diagnostic tools . Despite sporadic reports , rickettsial infections and Q fever have not been prospectively studied in Central America . We enrolled consecutive patients presenting ... | Rickettsial infections and Q fever cause illness characterized by fever and non-specific symptoms and signs . Not only are these infections difficult to recognize , they are also difficult to diagnose because of limitations in existing tests for them . Despite sporadic reports , rickettsial infections and Q fever have ... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"enzyme-linked",
"immunoassays",
"immune",
"physiology",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"immunology",
"geographical",
"locations",
"microbiology",
"rickettsia",
"north",
"america",
"bacterial",
"diseases",... | 2016 | First Identification and Description of Rickettsioses and Q Fever as Causes of Acute Febrile Illness in Nicaragua |
Most mammalian genes are able to express several splice variants in a phenomenon known as alternative splicing . Serious alterations of alternative splicing occur in cancer tissues , leading to expression of multiple aberrant splice forms . Most studies of alternative splicing defects have focused on the identification... | RNA splicing is the process by which gene products are pieced together to form a mature messenger RNA ( mRNA ) . In normal cells , RNA splicing is a tightly controlled process that leads to production of a well-defined set of mRNAs . Cancer cells , however , often produce aberrant , mis-spliced mRNAs . Such disorders h... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"computational",
"biology/alternative",
"splicing",
"genetics",
"and",
"genomics/gene",
"expression"
] | 2008 | Entropy Measures Quantify Global Splicing Disorders in Cancer |
Base J , β-D-glucosyl-hydroxymethyluracil , is a chromatin modification of thymine in the nuclear DNA of flagellated protozoa of the order Kinetoplastida . In Trypanosoma brucei , J is enriched , along with histone H3 variant ( H3 . V ) , at sites involved in RNA Polymerase ( RNAP ) II termination and telomeric sites i... | Trypanosoma brucei is an early-diverged parasitic protozoan that causes African sleeping sickness in humans . The genome of T . brucei is organized into polycistronic gene clusters that contain multiple genes that are co-transcribed from a single promoter . Because of this genome arrangement , it is thought that all ge... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2016 | Histone H3 Variant Regulates RNA Polymerase II Transcription Termination and Dual Strand Transcription of siRNA Loci in Trypanosoma brucei |
Stem cells and their niches constitute units that act cooperatively to achieve adult body homeostasis . How such units form and whether stem cell and niche precursors might be coordinated already during organogenesis are unknown . In fruit flies , primordial germ cells ( PGCs ) , the precursors of germ line stem cells ... | Tissue-specific stem cells reside in specialized microenvironments ( niches ) . How the generation of niche cells and resident stem cells is coordinated , and how their correct numerical ratios are regulated , remains poorly understood . Here , we examine the potential mechanisms of this process by analyzing the format... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"animal",
"models",
"developmental",
"biology",
"drosophila",
"melanogaster",
"model",
"organisms",
"organism",
"development",
"stem",
"cells",
"molecular",
"development",
"genetics",
"biology",
"morphogenesis",
"genetics",
"and",
"genomics",
"cell",
"differentiation",
"g... | 2011 | Coordinated Regulation of Niche and Stem Cell Precursors by Hormonal Signaling |
UNC-104/KIF1A is a Kinesin-3 motor that transports synaptic vesicles from the cell body towards the synapse by binding to PI ( 4 , 5 ) P2 through its PH domain . The fate of the motor upon reaching the synapse is not known . We found that wild-type UNC-104 is degraded at synaptic regions through the ubiquitin pathway a... | The cell body and the synapse in a neuron are often separated by significant distance , which is spanned by the axon connecting the two . Transport of various cargoes along the axonal highway is very important for neuronal function . The regulation of this complex process is not well understood . Using the Caenorhabdit... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"genetics",
"and",
"genomics/gene",
"function",
"neuroscience/neuronal",
"and",
"glial",
"cell",
"biology",
"cell",
"biology/cytoskeleton"
] | 2010 | The Caenorhabditis elegans Kinesin-3 Motor UNC-104/KIF1A Is Degraded upon Loss of Specific Binding to Cargo |
Enterovirus 71 ( EV71 ) is an RNA virus that causes hand-foot-mouth disease ( HFMD ) , and even fatal encephalitis in children . Although EV71 pathogenesis remains largely obscure , host immune responses may play important roles in the development of diseases . Recognition of pathogens mediated by Toll-like receptors (... | Enterovirus 71 ( EV71 ) is a highly infectious positive-stranded RNA virus that causes hand-foot-mouth disease ( HFMD ) . As a major pathogen , EV71 infection leads to host immune responses in the disease severity . Toll-like receptors ( TLRs ) can recognize pathogens to induce host immunity and inflammation . Most TLR... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"blood",
"cells",
"innate",
"immune",
"system",
"medicine",
"and",
"health",
"sciences",
"immune",
"physiology",
"cytokines",
"immune",
"cells",
"pathology",
"and",
"laboratory",
"medicine",
"enzyme-linked",
"immunoassays",
"gene",
"regulation",
"immunology",
"immune",
... | 2017 | HRS plays an important role for TLR7 signaling to orchestrate inflammation and innate immunity upon EV71 infection |
During embryonic development , vascular networks remodel to meet the increasing demand of growing tissues for oxygen and nutrients . This is achieved by the pruning of redundant blood vessel segments , which then allows more efficient blood flow patterns . Because of the lack of an in vivo system suitable for high-reso... | The blood vasculature circulates gas , nutrients , hormones , and metabolites to all organs of the body . It is indispensable for survival and already functions at very early stages of embryonic development . At this point , new blood vessels form mainly through angiogenesis—the outgrowth of new vessels from existing o... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Endothelial Cell Self-fusion during Vascular Pruning |
The pattern and frequency of insertions that enable transposable elements to remain active in a population are poorly understood . The retrotransposable element R2 exclusively inserts into the 28S rRNA genes where it establishes long-term , stable relationships with its animal hosts . Previous studies with laboratory s... | Transposable elements are abundant selfish components of all eukaryotic genomes . Despite the elaborate mechanisms eukaryotes have evolved to control these elements , they continue to proliferate . Here , we study R2 retrotransposons , highly successful elements that only insert into a site within the 28S rRNA genes of... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"molecular",
"biology/nucleolus",
"and",
"nuclear",
"bodies",
"genetics",
"and",
"genomics/population",
"genetics",
"genetics",
"and",
"genomics/chromosome",
"biology",
"evolutionary",
"biology/genomics"
] | 2009 | The Pattern of R2 Retrotransposon Activity in Natural Populations of Drosophila simulans Reflects the Dynamic Nature of the rDNA Locus |
To determine whether treatment of intestinal parasitic infections improves cognitive function in school-aged children , we examined changes in cognitive testscores over 18 months in relation to: ( i ) treatment-related Schistosoma japonicum intensity decline , ( ii ) spontaneous reduction of single soil-transmitted hel... | Parasitic worm infections are associated with cognitive impairment and lower academic achievement for infected relative to uninfected children . However , it is unclear whether curing or reducing worm infection intensity improves child cognitive function . We examined the independent associations between: ( i ) Schisto... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"public",
"health",
"and",
"epidemiology",
"infectious",
"disease",
"epidemiology",
"parasitic",
"diseases",
"helminth",
"infection",
"hookworm",
"infection",
"neglected",
"tropical",
"diseases",
"ascariasis",
"infectious",
"diseases",
"soil-transmitted",
"helmi... | 2012 | Treatment for Schistosoma japonicum, Reduction of Intestinal Parasite Load, and Cognitive Test Score Improvements in School-Aged Children |
To date , no immunization of humans or animals has elicited broadly neutralizing sera able to prevent HIV-1 transmission; however , elicitation of broad and potent heavy chain only antibodies ( HCAb ) has previously been reported in llamas . In this study , the anti-HIV immune responses in immunized llamas were studied... | Developing a vaccine against HIV-1 is a priority , but it remains unclear whether immunizations in humans can elicit potent broadly neutralizing antibodies able to prevent HIV-1 transmission . Llamas possess heavy chain only antibodies and conventional heavy and light chain antibodies . We previously reported the heavy... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"organisms",
"immunodeficiency",
"viruses",
"viruses",
"infectious",
"disease",
"immunology",
"clinical",
"immunology",
"medical",
"microbiology",
"viral",
"pathogens",
"microbial",
"pathogens",
"biology",
"and",
"life",
"sciences",
"immunology",
"microbiology",
"vaccinatio... | 2014 | Molecular Evolution of Broadly Neutralizing Llama Antibodies to the CD4-Binding Site of HIV-1 |
Cells can maintain their functions despite fluctuations in intracellular parameters , such as protein activities and gene expression levels . This commonly observed biological property of cells is called robustness . On the other hand , these parameters have different limitations , each reflecting the property of the s... | Normal cell functioning is dependent on balance between protein interactions and gene regulations . Although the balance is often perturbed by environmental changes , mutations , and noise in biochemical reactions , cellular systems can maintain their function despite these perturbations . This property of cells , call... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"cell",
"biology/cell",
"growth",
"and",
"division",
"computational",
"biology/systems",
"biology",
"biochemistry/theory",
"and",
"simulation",
"computational",
"biology/molecular",
"genetics"
] | 2010 | Fragilities Caused by Dosage Imbalance in Regulation of the Budding Yeast Cell Cycle |
The Escherichia coli curved DNA binding protein A ( CbpA ) is a poorly characterised nucleoid associated factor and co-chaperone . It is expressed at high levels as cells enter stationary phase . Using genetics , biochemistry , and genomics , we have examined regulation of , and DNA binding by , CbpA . We show that Fis... | Compaction of chromosomal DNA is a fundamental process that impacts on all aspects of cellular biology . However , our understanding of chromosome organisation in bacteria is poorly developed . Since bacteria are amongst the most abundant living organisms on the planet , this represents a startling gap in our knowledge... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"biochemistry",
"model",
"organisms",
"genetics",
"biology",
"genomics",
"microbiology",
"genetics",
"and",
"genomics"
] | 2013 | E. coli Fis Protein Insulates the cbpA Gene from Uncontrolled Transcription |
Extracellular cues affect signaling , metabolic , and regulatory processes to elicit cellular responses . Although intracellular signaling , metabolic , and regulatory networks are highly integrated , previous analyses have largely focused on independent processes ( e . g . , metabolism ) without considering the interp... | Cellular systems comprise many diverse components and component interactions spanning signal transduction , transcriptional regulation , and metabolism . Although signaling , metabolic , and regulatory activities are often investigated independently of one another , there is growing evidence that considerable interplay... | [
"Abstract",
"Introduction",
"Methods",
"Discussion"
] | [
"cell",
"biology/cell",
"signaling",
"computational",
"biology/transcriptional",
"regulation",
"mathematics",
"computational",
"biology/metabolic",
"networks",
"computational",
"biology/signaling",
"networks",
"computational",
"biology/molecular",
"dynamics",
"computational",
"biol... | 2008 | Dynamic Analysis of Integrated Signaling, Metabolic, and Regulatory Networks |
Traditional approaches to the problem of parameter estimation in biophysical models of neurons and neural networks usually adopt a global search algorithm ( for example , an evolutionary algorithm ) , often in combination with a local search method ( such as gradient descent ) in order to minimize the value of a cost f... | Parameter estimation is a problem of central importance and , perhaps , the most laborious task in biophysical modeling of neurons and neural networks . An emerging trend is to treat parameter estimation in this context as yet another statistical inference problem , which can be tackled using well-established methods f... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"mathematics",
"statistics",
"biology",
"computational",
"biology",
"neuroscience",
"probability",
"theory"
] | 2012 | A Self-Organizing State-Space-Model Approach for Parameter Estimation in Hodgkin-Huxley-Type Models of Single Neurons |
Eukaryotic mRNAs undergo a cycle of transcription , nuclear export , and degradation . A major challenge is to obtain a global , quantitative view of these processes . Here we measured the genome-wide nucleocytoplasmic dynamics of mRNA in Drosophila cells by metabolic labeling in combination with cellular fractionation... | All mRNAs start from production in the nucleus , undergo exportation through nuclear pores and finally are degraded in the cytoplasm . A comprehensive characterization of the kinetic rates of all mRNAs is an important prerequisite for a global understanding of the regulation of the transcriptome and the cell . By condu... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"invertebrates",
"rna-binding",
"proteins",
"radiochemistry",
"messenger",
"rna",
"animals",
"invertebrate",
"genomics",
"dna",
"transcription",
"nuclear",
"decay",
"animal",
"models",
"drosophila",
"melanogaster",
"model",
"organisms",
"experimental",
"organism",
"systems"... | 2017 | Comprehensive analysis of nucleocytoplasmic dynamics of mRNA in Drosophila cells |
Uterine leiomyosarcomas ( ULMSs ) are aggressive smooth muscle tumors associated with poor clinical outcome . Despite previous cytogenetic and molecular studies , their molecular background has remained elusive . To examine somatic variation in ULMS , we performed exome sequencing on 19 tumors . Altogether , 43 genes w... | Uterine leiomyosarcomas are rare , malignant smooth muscle tumors with a poor 5-year survival and high recurrence rate . They account for 1–2% of all uterine malignancies with an estimated incidence of 0 . 4/100 , 000 women per year . The symptoms and signs of this tumor type widely overlap with those of common benign ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"cancer",
"detection",
"and",
"diagnosis",
"medicine",
"and",
"health",
"sciences",
"chromosome",
"structure",
"and",
"function",
"insertion",
"mutation",
"cancers",
"and",
"neoplasms",
"oncology",
"telomeres",
"mutation",
"nonsense",
"mutation",
"frameshift",
"mutation... | 2016 | Exome Sequencing of Uterine Leiomyosarcomas Identifies Frequent Mutations in TP53, ATRX, and MED12 |
Translational control and messenger RNA ( mRNA ) decay represent important control points in the regulation of gene expression . In yeast , the major pathway for mRNA decay is initiated by deadenylation followed by decapping and 5′–3′ exonucleolytic digestion of the mRNA . Proteins that activate decapping , such as the... | Translation of mRNA into protein and turnover of mRNA are two points at which cells can exert regulatory control of gene expression , thereby ensuring that the protein products are present in cells and tissues at the appropriate time and place . The DDX6 family of DEAD box helicases , exemplified by the yeast protein D... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"biochemistry",
"genetics",
"biology",
"molecular",
"cell",
"biology",
"genetics",
"and",
"genomics"
] | 2012 | The DEAD-Box Protein Dhh1 Promotes Decapping by Slowing Ribosome Movement |
The rise of multi-drug resistant ( MDR ) and extensively drug resistant ( XDR ) tuberculosis around the world , including in industrialized nations , poses a great threat to human health and defines a need to develop new , effective and inexpensive anti-tubercular agents . Previously we developed a chemical systems bio... | The rise of multi-drug resistant ( MDR ) and extensively drug resistant ( XDR ) tuberculosis around the world , including in industrialized nations , poses a great threat to human health . This resistance highlights the need to develop new , effective and inexpensive anti-tubercular agents . Unfortunately , conventiona... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"computational",
"biology/macromolecular",
"structure",
"analysis",
"pharmacology/drug",
"resistance",
"pharmacology/drug",
"development",
"biotechnology/small",
"molecule",
"chemistry",
"infectious",
"diseases/bacterial",
"infections",
"pharmacology/adverse",
"reactions",
"computati... | 2009 | Drug Discovery Using Chemical Systems Biology: Repositioning the Safe Medicine Comtan to Treat Multi-Drug and Extensively Drug Resistant Tuberculosis |
Skin sores caused by Group A streptococcus ( GAS ) infection are a major public health problem in remote Aboriginal communities . Skin sores are often associated with scabies , which is evident in scabies intervention programs where a significant reduction of skin sores is seen after focusing solely on scabies control ... | Skin sores , also known as impetigo , are highly contagious bacterial skin infections , which are found commonly in school children and occasionally in adults . Skin sores are prevalent in disadvantaged or resource-poor settings . In Australia , about two thirds of Aboriginal children suffer from skin sores by their fi... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"dermatology",
"medicine",
"and",
"health",
"sciences",
"clinical",
"research",
"design",
"tropical",
"diseases",
"geographical",
"locations",
"australia",
"group",
"a",
"streptococcal",
"infection",
"parasitic",
"diseases",
"research",
"design",
"bacterial",
"diseases",
... | 2018 | Scabies and risk of skin sores in remote Australian Aboriginal communities: A self-controlled case series study |
Recent data suggest that Nef-mediated downmodulation of TCR-CD3 may protect SIVsmm-infected sooty mangabeys ( SMs ) against the loss of CD4+ T cells . However , the mechanisms underlying this protective effect remain unclear . To further assess the role of Nef in nonpathogenic SIV infection , we cloned nef alleles from... | The accessory Nef protein is commonly considered a “pathogenicity” factor of primate lentiviruses . However , SIVs do not cause disease in their natural hosts , although they all encode nef genes and sustain high levels of viremia . To better understand the role of Nef in natural nonpathogenic SIV infection , we compar... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"virology/virulence",
"factors",
"and",
"mechanisms",
"virology/virus",
"evolution",
"and",
"symbiosis",
"virology/immunodeficiency",
"viruses",
"virology/mechanisms",
"of",
"resistance",
"and",
"susceptibility,",
"including",
"host",
"genetics",
"virology/immune",
"evasion"
] | 2008 | Inefficient Nef-Mediated Downmodulation of CD3 and MHC-I Correlates with Loss of CD4+ T Cells in Natural SIV Infection |
Neural processing rests on the intracellular transformation of information as synaptic inputs are translated into action potentials . This transformation is governed by the spike threshold , which depends on the history of the membrane potential on many temporal scales . While the adaptation of the threshold after spik... | A neuron is a tiny computer that transforms electrical inputs into electrical outputs . While neurons have been investigated and modeled for many decades , some aspects remain elusive . Recently , it was demonstrated that the membrane ( voltage ) state of a neuron determines its threshold to spiking . In the present st... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"action",
"potentials",
"medicine",
"and",
"health",
"sciences",
"neural",
"networks",
"depolarization",
"membrane",
"potential",
"electrophysiology",
"neuroscience",
"simulation",
"and",
"modeling",
"computational",
"neuroscience",
"research",
"and",
"analysis",
"methods",... | 2016 | Adaptive Spike Threshold Enables Robust and Temporally Precise Neuronal Encoding |
Thousands of loci in the human and mouse genomes give rise to circular RNA transcripts; at many of these loci , the predominant RNA isoform is a circle . Using an improved computational approach for circular RNA identification , we found widespread circular RNA expression in Drosophila melanogaster and estimate that in... | Last year , we reported that circular RNA isoforms , previously thought to be very rare , are actually a pervasive feature of eukaryotic gene expression programs; indeed , the major RNA isoform from hundreds of human genes is a circle . Previous novel RNA species that initially appeared to be special cases , of dubious... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2013 | Cell-Type Specific Features of Circular RNA Expression |
Viral protein neutralizing antibodies have been developed but they are limited only to the targeted virus and are often susceptible to antigenic drift . Here , we present an alternative strategy for creating virus-resistant cells and animals by ectopic expression of a nucleic acid hydrolyzing catalytic 3D8 single chain... | Most strategies for developing virus-resistant transgenic cells and animals are based on the concept of virus-derived resistance , in which dysfunctional virus-derived products are expressed to interfere with the pathogenic process of the virus in transgenic cells or animals . However , these viral protein targeting ap... | [
"Abstract",
"Introduction",
"Results",
"and",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"biotechnology",
"cell",
"biology",
"biology",
"and",
"life",
"sciences",
"molecular",
"cell",
"biology"
] | 2014 | A Nucleic-Acid Hydrolyzing Single Chain Antibody Confers Resistance to DNA Virus Infection in HeLa Cells and C57BL/6 Mice |
Community-based public health campaigns , such as those used in mass deworming , vitamin A supplementation and child immunization programs , provide key healthcare interventions to targeted populations at scale . However , these programs often fall short of established coverage targets . The purpose of this systematic ... | Many public health platforms provide decentralized interventions outside of health facilities , including mass drug administration for neglected tropical diseases , immunizations , vitamin supplementation , and others . The purpose of these community-based public health platforms is to reach large proportions of popula... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results",
"Discussion"
] | [
"children",
"medicine",
"and",
"health",
"sciences",
"tropical",
"diseases",
"parasitic",
"diseases",
"pediatrics",
"vaccines",
"age",
"groups",
"neglected",
"tropical",
"diseases",
"infectious",
"disease",
"control",
"onchocerciasis",
"families",
"public",
"and",
"occu... | 2018 | Strategies to improve treatment coverage in community-based public health programs: A systematic review of the literature |
Dengue-suppressing Wolbachia strains are promising tools for arbovirus control , particularly as they have the potential to self-spread following local introductions . To test this , we followed the frequency of the transinfected Wolbachia strain wMel through Ae . aegypti in Cairns , Australia , following releases at 3... | Wolbachia are bacteria that live inside insect cells . In insects that act as viral vectors , Wolbachia can suppress virus transmission to new hosts . Wolbachia have been experimentally introduced into Aedes aegypti mosquito populations to reduce the transmission of dengue , Zika , and other arboviruses that cause huma... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"invertebrates",
"medicine",
"and",
"health",
"sciences",
"animals",
"wolbachia",
"seasons",
"mathematics",
"statistics",
"(mathematics)",
"population",
"biology",
"insect",
"vectors",
"bacteria",
"infectious",
"diseases",
"geography",
"aedes",
"aegypti",
"disease",
"vect... | 2017 | Local introduction and heterogeneous spatial spread of dengue-suppressing Wolbachia through an urban population of Aedes aegypti |
Interactions in protein networks may place constraints on protein interface sequences to maintain correct and avoid unwanted interactions . Here we describe a “multi-constraint” protein design protocol to predict sequences optimized for multiple criteria , such as maintaining sets of interactions , and apply it to char... | Computational methods have recently led to remarkable successes in the design of molecules with novel functions . These approaches offer great promise for creating highly selective molecules to accurately control biological processes . However , to reach these goals modeling procedures are needed that are able to defin... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"biophysics",
"none",
"computational",
"biology"
] | 2007 | Design of Multi-Specificity in Protein Interfaces |
Q fever is a common cause of febrile illness and community-acquired pneumonia in resource-limited settings . Coxiella burnetii , the causative pathogen , is transmitted among varied host species , but the epidemiology of the organism in Africa is poorly understood . We conducted a systematic review of C . burnetii epid... | Coxiella burnetii is a bacterium that can cause acute and chronic fever illness and pneumonia in humans . It is also a known cause of abortion in livestock species , and is principally transmitted to humans through contact with infected animal birth products . With growing awareness of the over-diagnosis and misclassif... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"bacterial",
"diseases",
"infectious",
"diseases",
"veterinary",
"diseases",
"medicine",
"and",
"health",
"sciences",
"biology",
"and",
"life",
"sciences",
"veterinary",
"bacteriology",
"q",
"fever",
"veterinary",
"science"
] | 2014 | Epidemiology of Coxiella burnetii Infection in Africa: A OneHealth Systematic Review |
The potent vasoconstrictor peptides , endothelin 1 ( ET-1 ) and angiotensin II control adaptation of blood vessels to fluctuations of blood pressure . Previously we have shown that the circulating level of ET-1 is regulated through its proteolytic cleavage by secreted serine carboxypeptidase , cathepsin A ( CathA ) . H... | Arterial blood pressure is regulated by small peptide hormones ( vasoactive peptides ) that cause contraction or relaxation of the arterial wall . The blood and tissue levels of these peptides are controlled by two mechanisms: through their synthesis and through their inactivation by the enzymes that are capable of cle... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"medicine",
"biochemistry",
"hemodynamics",
"protein",
"metabolism",
"proteins",
"plasma",
"proteins",
"biocatalysis",
"vascular",
"biology",
"regulatory",
"proteins",
"biology",
"hypertension",
"metabolism",
"cardiovascular"
] | 2014 | Serine Carboxypeptidase SCPEP1 and Cathepsin A Play Complementary Roles in Regulation of Vasoconstriction via Inactivation of Endothelin-1 |
Dengue virus infection is the most common arthropod-borne disease of humans and its geographical range and infection rates are increasing . Health policy decisions require information about the disease burden , but surveillance systems usually underreport the total number of cases . These may be estimated by multiplyin... | Dengue is the most common disease transmitted by a mosquito , with about 100–200 million infections occurring each year in more than 100 tropical and subtropical countries . Policy-makers require accurate information about the number of symptomatic dengue episodes to make informed decisions concerning dengue control st... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"infectious",
"diseases",
"socioeconomic",
"aspects",
"of",
"health",
"public",
"health",
"and",
"epidemiology",
"epidemiological",
"methods",
"epidemiology",
"global",
"health",
"dengue",
"fever",
"neglected",
"tropical",
"diseases",
"spatial",
"epidemiology"... | 2013 | Use of Expansion Factors to Estimate the Burden of Dengue in Southeast Asia: A Systematic Analysis |
mRNA half-lives are transcript-specific and vary over a range of more than 100-fold in eukaryotic cells . mRNA stabilities can be regulated by sequence-specific RNA-binding proteins ( RBPs ) , which bind to regulatory sequence elements and modulate the interaction of the mRNA with the cellular RNA degradation machinery... | Messenger RNAs ( mRNAs ) are the molecules that relay the information from genes ( DNA ) to proteins . Cells contain different amounts of each mRNA type depending on their function and their situation . The quantity of each mRNA depends on the balance between its production ( transcription ) and its degradation ( mRNA ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"organisms",
"biochemistry",
"rna-binding",
"proteins",
"rna",
"fungi",
"proteins",
"gene",
"regulatory",
"networks",
"genetics",
"schizosaccharomyces",
"pombe",
"biology",
"and",
"life",
"sciences",
"molecular",
"genetics",
"computational",
"biology",
"schizosaccharomyces"... | 2014 | Systematic Analysis of the Role of RNA-Binding Proteins in the Regulation of RNA Stability |
Multilevel selection has been indicated as an essential factor for the evolution of complexity in interacting RNA-like replicator systems . There are two types of multilevel selection mechanisms: implicit and explicit . For implicit multilevel selection , spatial self-organization of replicator populations has been sug... | The origin of life has ever been attracting scientific inquiries . The RNA world hypothesis suggests that , before the evolution of DNA and protein , primordial life was based on RNA-like molecules both for information storage and chemical catalysis . In the simplest form , an RNA world consists of RNA molecules that c... | [
"Abstract",
"Introduction",
"Models",
"Results",
"Discussion"
] | [
"computational",
"biology/evolutionary",
"modeling",
"evolutionary",
"biology",
"chemical",
"biology/directed",
"molecular",
"evolution"
] | 2009 | Multilevel Selection in Models of Prebiotic Evolution II: A Direct Comparison of Compartmentalization and Spatial Self-Organization |
Growing experimental evidence indicates that , in addition to the physical virion components , the non-structural proteins of hepatitis C virus ( HCV ) are intimately involved in orchestrating morphogenesis . Since it is dispensable for HCV RNA replication , the non-structural viral protein NS2 is suggested to play a c... | Hepatitis C virus ( HCV ) causes major health problems worldwide . Understanding the major steps of the life cycle of this virus is essential to developing new and more efficient antiviral molecules . Virus assembly is the least understood step of the HCV life cycle . Growing experimental evidence indicates that , in a... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"virology/virion",
"structure,",
"assembly,",
"and",
"egress",
"virology"
] | 2011 | NS2 Protein of Hepatitis C Virus Interacts with Structural and Non-Structural Proteins towards Virus Assembly |
Cyclin A is critical for cellular DNA synthesis and S phase progression of the cell cycle . Human cytomegalovirus ( HCMV ) can reduce cyclin A levels and block cellular DNA synthesis , and cyclin A overexpression can repress HCMV replication . This interaction has only been previously observed in HCMV as murine CMV doe... | Cyclins are evolutionarily conserved proteins that associate with cyclin-dependent kinases ( CDKs ) to regulate phosphorylation of multiple substrates to promote cell-cycle progression . Many viruses manipulate the cell cycle in order to create an environment suitable for replication; however , only few examples exist ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2013 | Cyclin A Degradation by Primate Cytomegalovirus Protein pUL21a Counters Its Innate Restriction of Virus Replication |
A defect in the PKA1 gene encoding the catalytic subunit of cyclic adenosine 5′-monophosphate ( cAMP ) –dependent protein kinase A ( PKA ) is known to reduce capsule size and attenuate virulence in the fungal pathogen Cryptococcus neoformans . Conversely , loss of the PKA regulatory subunit encoded by pkr1 results in o... | The ability of pathogens to regulate the export of proteins and other macromolecules is an important aspect of the infection process . The fungal pathogen Cryptococcus neoformans causes life-threatening infections in individuals with AIDS and delivers several virulence factors to the cell surface . These factors includ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods",
"Supporting",
"Information"
] | [
"yeast",
"and",
"fungi",
"infectious",
"diseases",
"genetics",
"and",
"genomics",
"microbiology"
] | 2007 | Transcriptional Regulation by Protein Kinase A in Cryptococcus neoformans |
Visceral leishmaniasis is the most severe form of leishmaniasis . Worldwide , approximately 20% of zoonotic human visceral leishmaniasis is caused by Leishmania infantum , also known as Leishmania chagasi in Latin America . Current diagnostic methods are not accurate enough to identify Leishmania-infected animals and m... | Visceral leishmaniasis is the most severe form among leishmaniasis , being a neglected disease caused by a protozoan parasite . Its transmission through phlebotominae bites , between dogs and humans , classifies it as a zoonotic disease . It is caused by the specie Leishmania infantum ( = L . chagasi ) and represents 2... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"gene",
"expression",
"and",
"vector",
"techniques",
"biochemistry",
"veterinary",
"parasitology",
"proteins",
"biology",
"and",
"life",
"sciences",
"molecular",
"biology",
"techniques",
"recombinant",
"proteins",
"molecular",
"biology",
"parasitology",
"molecular",
"biol... | 2015 | Novel Recombinant Multiepitope Proteins for the Diagnosis of Asymptomatic Leishmania infantum-Infected Dogs |
Knowledge of the molecular and genetic mechanisms underlying the separation of dendritic and axonal compartments is not only crucial for understanding the assembly of neural circuits , but also for developing strategies to correct defective dendrites or axons in diseases with subcellular precision . Previous studies ha... | Dendrites and axons are the input and output compartments of a neuron , respectively . Understanding how dendrites and axons are separated during neuronal development may help in developing strategies to correct defective neurons in neurological disorders and injuries . We show here that an evolutionarily conserved mol... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"developmental",
"neuroscience",
"cellular",
"neuroscience",
"neuronal",
"morphology",
"biology",
"neuroscience",
"neural",
"circuit",
"formation"
] | 2013 | Bimodal Control of Dendritic and Axonal Growth by the Dual Leucine Zipper Kinase Pathway |
Although flea-borne rickettsiosis is endemic in Los Angeles County , outbreaks are rare . In the spring of 2015 three human cases of flea-borne rickettsiosis among residents of a mobile home community ( MHC ) prompted an investigation . Fleas were ubiquitous in common areas due to presence of flea-infested opossums and... | Outbreaks of flea-borne rickettsiosis are rare despite the endemic status in Los Angeles County . In the spring of 2015 three human cases of flea-borne rickettsiosis among residents of a mobile home community ( MHC ) prompted an investigation . Fleas were found in all common areas at the MHC due to presence of flea-inf... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results",
"Discussion"
] | [
"invertebrates",
"medicine",
"and",
"health",
"sciences",
"body",
"fluids",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"immunology",
"microbiology",
"vertebrates",
"rickettsia",
"mammals",
"animals",
"marsupials",
"clinical",
"medicine",
"fleas",
"infectio... | 2018 | A 2015 outbreak of flea-borne rickettsiosis in San Gabriel Valley, Los Angeles County, California |
A major barrier to curing HIV-1 is the long-lived latent reservoir that supports re-emergence of HIV-1 upon treatment interruption . Targeting this reservoir will require mechanistic insights into the establishment and maintenance of HIV-1 latency . Whether T cell signaling at the time of HIV-1 infection influences pro... | Activation of CD4+ T cells facilitates HIV-1 infection; however , whether there are minimal signals required for the establishment of infection , replication , and latency has not been explored . To determine how T cell signaling influences HIV-1 infection and the generation of latently infected cells , we used chimeri... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"blood",
"cells",
"medicine",
"and",
"health",
"sciences",
"immune",
"cells",
"pathology",
"and",
"laboratory",
"medicine",
"engineering",
"and",
"technology",
"pathogens",
"signal",
"processing",
"immunology",
"microbiology",
"dna",
"transcription",
"retroviruses",
"vi... | 2019 | Strength of T cell signaling regulates HIV-1 replication and establishment of latency |
Nutrient acquisition is a critical determinant for the competitive advantage for auto- and osmohetero- trophs alike . Nutrient limited growth is commonly described on a whole cell basis through reference to a maximum growth rate ( Gmax ) and a half-saturation constant ( KG ) . This empirical application of a Michaelis-... | Relating environmental nutrient concentration and nutrient acquisition to cell growth is an important feature of numerical simulations describing ecological systems of microbes . Here we investigate the critical role of the combined effects of maximum growth rate , cell size , motion , and elemental stoichiometry on nu... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"invertebrates",
"cell",
"motility",
"medicine",
"and",
"health",
"sciences",
"phytoplankton",
"chemical",
"compounds",
"animals",
"nitrates",
"nutrition",
"materials",
"science",
"materials",
"physics",
"sedimentation",
"plants",
"chemistry",
"algae",
"physics",
"stoichi... | 2018 | Effects of growth rate, cell size, motion, and elemental stoichiometry on nutrient transport kinetics |
Infection with Listeria monocytogenes strains that enter the host cell cytosol leads to a robust cytotoxic T cell response resulting in long-lived cell-mediated immunity ( CMI ) . Upon entry into the cytosol , L . monocytogenes secretes cyclic diadenosine monophosphate ( c-di-AMP ) which activates the innate immune sen... | Current vaccines are successful at generating neutralizing antibodies , however there is a pressing medical need to find adjuvants that yield long-lived memory T cells . Immunization with the bacterium Listeria monocytogenes induces a robust protective immune response mediated by cytotoxic lymphocytes that are efficien... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2014 | STING-Dependent Type I IFN Production Inhibits Cell-Mediated Immunity to Listeria monocytogenes |
Iron plays an essential role in many biological processes , but also catalyzes the formation of reactive oxygen species ( ROS ) , which can cause molecular damage . Iron homeostasis is therefore a critical determinant of fitness . In Caenorhabditis elegans , insulin/IGF-1 signaling ( IIS ) promotes growth and reproduct... | Iron plays a role in many biological processes , including energy generation and DNA replication . But to maintain health , levels of cellular iron must be just right: too much or too little iron can cause illnesses , such as anemia and hemochromatosis , respectively . Animals therefore carefully control their iron lev... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"biochemistry",
"genetics",
"biology",
"metabolism",
"genetics",
"and",
"genomics"
] | 2012 | Insulin/IGF-1 and Hypoxia Signaling Act in Concert to Regulate Iron Homeostasis in Caenorhabditis elegans |
Processing of unattended threat-related stimuli , such as fearful faces , has been previously examined using group functional magnetic resonance ( fMRI ) approaches . However , the identification of features of brain activity containing sufficient information to decode , or “brain-read” , unattended ( implicit ) fear p... | Brain activity is increasingly characterized by patterns of pair-wise correlations ( large-scale functional connectivity ) across the whole brain obtained from Blood Oxygen Level Dependent ( BOLD ) functional magnetic resonance imaging ( fMRI ) . Typically this is done during resting states ( i . e . no presented stimu... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [
"psychology",
"social",
"and",
"behavioral",
"sciences",
"behavior",
"biology",
"computational",
"biology",
"neuroscience",
"neuroimaging"
] | 2012 | Decoding Unattended Fearful Faces with Whole-Brain Correlations: An Approach to Identify Condition-Dependent Large-Scale Functional Connectivity |
In the Indian subcontinent , about 200 million people are at risk of developing visceral leishmaniasis ( VL ) . In 2005 , the governments of India , Nepal and Bangladesh started the first regional VL elimination program with the aim to reduce the annual incidence to less than 1 per 10 , 000 by 2015 . A mathematical mod... | Visceral Leishmaniasis is a neglected , life-threatening disease affecting the poorest of the poor . It has received more attention in light of the regional VL elimination program . A deterministic compartmental model was developed to estimate parameters for L . donovani transmission and to optimise intervention succes... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"public",
"health",
"and",
"epidemiology",
"infectious",
"disease",
"epidemiology",
"population",
"dynamics",
"parasitic",
"diseases",
"neglected",
"tropical",
"diseases",
"population",
"biology",
"infectious",
"disease",
"control",
"infectious",
"diseases",
"... | 2011 | Visceral Leishmaniasis in the Indian Subcontinent: Modelling Epidemiology and Control |
Studying a gene’s regulatory mechanisms is a tedious process that involves identification of candidate regulators by transcription factor ( TF ) knockout or over-expression experiments , delineation of enhancers by reporter assays , and demonstration of direct TF influence by site mutagenesis , among other approaches .... | In-depth studies of gene regulatory mechanisms employ a variety of experimental approaches such as identifying a gene’s enhancer ( s ) and testing its variants through reporter assays , followed by transcription factor mis-expression or knockouts , site mutagenesis , etc . The biologist is often faced with the challeng... | [
"Abstract",
"Introduction",
"Results",
"Material",
"and",
"methods",
"Discussion"
] | [
"information",
"entropy",
"ecology",
"and",
"environmental",
"sciences",
"gene",
"regulation",
"experimental",
"design",
"research",
"design",
"regulator",
"genes",
"probability",
"distribution",
"mathematics",
"gene",
"types",
"research",
"and",
"analysis",
"methods",
... | 2018 | An information theoretic treatment of sequence-to-expression modeling |
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