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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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Denitrifying bacteria accumulate NO2− , NO , and N2O , the amounts depending on transcriptional regulation of core denitrification genes in response to O2-limiting conditions . The genes include nar , nir , nor and nosZ , encoding NO3− - , NO2− - , NO- and N2O reductase , respectively . We previously constructed a dyna... | Denitrifiers generally respire O2 , but if O2 becomes limiting , they may switch to anaerobic respiration ( denitrification ) by producing NO3− - , NO2− - , NO- and/or N2O reductase , encoded by nar , nir , nor , and nosZ genes , respectively . Denitrification causes transient accumulation of NO2− and NO/N2O emissions ... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results/Discussion"
] | [] | 2016 | Transient Accumulation of NO2- and N2O during Denitrification Explained by Assuming Cell Diversification by Stochastic Transcription of Denitrification Genes |
Our ability to detect target sounds in complex acoustic backgrounds is often limited not by the ear's resolution , but by the brain's information-processing capacity . The neural mechanisms and loci of this “informational masking” are unknown . We combined magnetoencephalography with simultaneous behavioral measures in... | Sounds that are well above the sensory threshold may sometimes fail to be perceived when they occur amid competing sounds , as often happens in everyday life . This phenomenon is generally referred to as “informational masking . ” We took advantage of this effect to isolate brain responses that correlate with conscious... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"neuroscience"
] | 2008 | Neural Correlates of Auditory Perceptual Awareness under Informational Masking |
Following attachment to primary receptor heparan sulfate proteoglycans ( HSPG ) , human papillomavirus type 16 ( HPV16 ) particles undergo conformational changes affecting the major and minor capsid proteins , L1 and L2 , respectively . This results in exposure of the L2 N-terminus , transfer to uptake receptors , and ... | Human papillomaviruses ( HPV ) , especially HPV types 16 and 18 , are a major cause of cancer in women worldwide . HPV16 , like most genital HPV types , relies on heparan sulfate proteoglycans ( HSPGs ) to attach to host cells and to the extracellular matrix . Attachment is mediated by surface-exposed basic residues of... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"virology/host",
"invasion",
"and",
"cell",
"entry",
"virology"
] | 2009 | Target Cell Cyclophilins Facilitate Human Papillomavirus Type 16 Infection |
Toxicity is an important factor in failed drug development , and its efficient identification and prediction is a major challenge in drug discovery . We have explored the potential of microscopy images of fluorescently labeled nuclei for the prediction of toxicity based on nucleus pattern recognition . Deep learning al... | Visualization of nuclei using different microscopic approaches has for decades allowed the identification of cells undergoing cell death , based on changes in morphology , nuclear density , etc . However , this human-based visual analysis has not been translated into quantitative tools able to objectively measure cytot... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"fluorescence",
"imaging",
"medicine",
"and",
"health",
"sciences",
"nuclear",
"staining",
"pathology",
"and",
"laboratory",
"medicine",
"engineering",
"and",
"technology",
"signal",
"processing",
"drug",
"screening",
"toxicology",
"toxicity",
"pharmaceutics",
"crops",
... | 2018 | Tox_(R)CNN: Deep learning-based nuclei profiling tool for drug toxicity screening |
The development of new adjuvants enables fine modulation of the elicited immune responses . Ideally , the use of one or more adjuvants should result in the induction of a protective immune response against the specific pathogen . We have evaluated the immune response and protection against Trypanosoma cruzi infection i... | Chagas disease is a parasitic disease caused by a protozoan parasite ( Trypanosoma cruzi ) which has a complex life cycle including insect vector and mammalians . In Latin America , 7–10 million people are infected , 100 million people are at risk of infection , and about 56 , 000 new infection cases and 12 , 000 death... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"enzyme-linked",
"immunoassays",
"immunology",
"parasitic",
"diseases",
"parasitic",
"protozoans",
"vaccines",
"preventive",
"medicine",
"immunologic",
"adjuvants",
"protozoans",
"infectious",
"disease",
"control",
"vaccination",
"an... | 2017 | Immunization with Tc52 or its amino terminal domain adjuvanted with c-di-AMP induces Th17+Th1 specific immune responses and confers protection against Trypanosoma cruzi |
Gene Ontology ( GO ) has established itself as the undisputed standard for protein function annotation . Most annotations are inferred electronically , i . e . without individual curator supervision , but they are widely considered unreliable . At the same time , we crucially depend on those automated annotations , as ... | In the UniProt Gene Ontology Annotation database , the largest repository of functional annotations , over 98% of all function annotations are inferred in silico , without curator oversight . Yet these “electronic GO annotations” are generally perceived as unreliable; they are disregarded in many studies . In this arti... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"functional",
"genomics",
"gene",
"function",
"genome",
"analysis",
"tools",
"genome",
"databases",
"biology",
"proteomics",
"gene",
"ontologies",
"biochemistry",
"proteomic",
"databases",
"genetics",
"genomics",
"computational",
"biology",
"genetics",
"and",
"genomics"
] | 2012 | Quality of Computationally Inferred Gene Ontology Annotations |
Incremental learning , in which new knowledge is acquired gradually through trial and error , can be distinguished from one-shot learning , in which the brain learns rapidly from only a single pairing of a stimulus and a consequence . Very little is known about how the brain transitions between these two fundamentally ... | There are at least two distinct learning strategies for identifying the relationship between a cause and its consequence: ( 1 ) incremental learning , in which we gradually acquire knowledge through trial and error , and ( 2 ) one-shot learning , in which we rapidly learn from only a single pairing of a potential cause... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Neural Computations Mediating One-Shot Learning in the Human Brain |
As a component of the Cytosolic Iron-sulfur cluster Assembly ( CIA ) pathway , DRE2 is essential in organisms from yeast to mammals . However , the roles of DRE2 remain incompletely understood largely due to the lack of viable dre2 mutants . In this study , we successfully created hypomorphic dre2 mutants using the CRI... | The Cytosolic Iron-sulfur cluster Assembly ( CIA ) pathway is essential for the maturation of Fe-S proteins localized in the cytosol and the nucleus . As an important component of the CIA pathway , DRE2 is essential from yeast to mammals . To study the CIA-related functions of DRE2 and further explore novel non-CIA rol... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biotechnology",
"engineering",
"and",
"technology",
"hormones",
"dna",
"damage",
"plant",
"science",
"dna",
"replication",
"plant",
"hormones",
"genetically",
"modified",
"plants",
"epigenetics",
"dna",
"seedlings",
"molecular",
"biology",
"techniques",
"plants",
"dna"... | 2019 | Canonical cytosolic iron-sulfur cluster assembly and non-canonical functions of DRE2 in Arabidopsis |
Buruli ulcer ( BU ) is a neglected tropical disease caused by Mycobacterium ulcerans . The tissue damage characteristic of BU lesions is known to be driven by the secretion of the potent lipidic exotoxin mycolactone . However , the molecular action of mycolactone on host cell biology mediating cytopathogenesis is not f... | Buruli Ulcer ( BU ) is a neglected tropical disease caused by Mycobacterium ulcerans infection . It has been recognized for many years that BU pathogenesis is mediated by the potent exotoxin mycolactone; however , the molecular action of this toxin on the host cell biology that drives its pathogenesis is not fully unde... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"medicine",
"and",
"health",
"sciences",
"pathology",
"and",
"laboratory",
"medicine",
"tropical",
"diseases",
"bacterial",
"diseases",
"molecular",
"motors",
"emerging",
"infectious",
"diseases",
"neglected",
"tropical",
"diseases",
"cellular",
"structures",
"and",
"or... | 2014 | Proteomic Analysis of the Action of the Mycobacterium ulcerans Toxin Mycolactone: Targeting Host Cells Cytoskeleton and Collagen |
The tubular networks of the Drosophila respiratory system and our vasculature show distinct branching patterns and tube shapes in different body regions . These local variations are crucial for organ function and organismal fitness . Organotypic patterns and tube geometries in branched networks are typically controlled... | Tubes are common structural elements of many internal organs , facilitating fluid flow and material exchange . To meet the local needs of diverse tissues , the branching patterns and tube shapes vary regionally . Diametric tapering and specialized branch targeting to the brain represent two common examples of variation... | [
"Abstract",
"Introduction",
"Results",
"and",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | The Intersection of the Extrinsic Hedgehog and WNT/Wingless Signals with the Intrinsic Hox Code Underpins Branching Pattern and Tube Shape Diversity in the Drosophila Airways |
Replicative aging has been demonstrated in asymmetrically dividing unicellular organisms , seemingly caused by unequal damage partitioning . Although asymmetric segregation and inheritance of potential aging factors also occur in symmetrically dividing species , it nevertheless remains controversial whether this result... | Multicellular organisms universally senesce and must produce rejuvenated progenies in order to transmit life . Although similar age-related deterioration in physiological functions and reproduction is also found in unicellular organisms that divide asymmetrically to produce morphologically distinct aged and younger cel... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"death",
"rates",
"cell",
"death",
"fluorescence",
"imaging",
"medicine",
"and",
"health",
"sciences",
"engineering",
"and",
"technology",
"demography",
"cell",
"cycle",
"and",
"cell",
"division",
"protein",
"aggregation",
"cell",
"processes",
"physiological",
"proces... | 2017 | Aging, mortality, and the fast growth trade-off of Schizosaccharomyces pombe |
We present the genome sequences of a new clinical isolate of the important human pathogen , Aspergillus fumigatus , A1163 , and two closely related but rarely pathogenic species , Neosartorya fischeri NRRL181 and Aspergillus clavatus NRRL1 . Comparative genomic analysis of A1163 with the recently sequenced A . fumigatu... | Aspergillus is an extremely diverse genus of filamentous ascomycetous fungi ( molds ) found ubiquitously in soil and decomposing vegetation . Being supreme opportunists , aspergilli have adapted to overcome various chemical , physical , and biological stresses found in heterogeneous environments . While most species in... | [
"Abstract",
"Introduction",
"Results/Discussion",
"Materials",
"and",
"Methods"
] | [
"genetics",
"and",
"genomics/genomics",
"computational",
"biology/population",
"genetics",
"genetics",
"and",
"genomics/microbial",
"evolution",
"and",
"genomics",
"genetics",
"and",
"genomics/comparative",
"genomics",
"computational",
"biology/comparative",
"sequence",
"analys... | 2008 | Genomic Islands in the Pathogenic Filamentous Fungus Aspergillus fumigatus |
We have generated and made publicly available two very large networks of molecular interactions: 49 , 493 mouse-specific and 52 , 518 human-specific interactions . These networks were generated through automated analysis of 368 , 331 full-text research articles and 8 , 039 , 972 article abstracts from the PubMed databa... | We described and made publicly available the largest existing set of text-mined statements; we also presented its application to an important biological problem . We have extracted and purified two large molecular networks , one for humans and one for mouse . We characterized the data sets , described the methods we us... | [
"Abstract",
"Introduction",
"Results/Discussion",
"Methods"
] | [
"computational",
"biology/literature",
"analysis",
"neuroscience/neurodevelopment",
"computational",
"biology/systems",
"biology"
] | 2009 | Looking at Cerebellar Malformations through Text-Mined Interactomes of Mice and Humans |
Heterosis describes the phenotypic superiority of hybrids over their parents in traits related to agronomic performance and fitness . Understanding and predicting nonadditive inheritance such as heterosis is crucial for evolutionary biology as well as for plant and animal breeding . However , the physiological bases of... | Hybrids often grow faster and produce more offspring than their parents . This phenomenon , called hybrid vigour or heterosis , has been extensively exploited in agriculture . Even though several hypotheses have been proposed to explain the genetic basis of hybrid superiority , there is still no unifying model able to ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Conclusions",
"Material",
"and",
"methods"
] | [] | 2019 | Nonlinear phenotypic variation uncovers the emergence of heterosis in Arabidopsis thaliana |
The two-component NS2B-NS3 proteases of West Nile and dengue viruses are essential for viral replication and established targets for drug development . In all crystal structures of the proteases to date , the NS2B cofactor is located far from the substrate binding site ( open conformation ) in the absence of inhibitor ... | Dengue and West Nile virus infections put an estimated 2 . 5 billion people at risk . Neither drugs nor vaccines are currently available against these diseases . The non-structural protein NS3 is a protease that , together with the cofactor NS2B , is essential for viral maturation . The NS2B-NS3 proteases of dengue and... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"biophysics/experimental",
"biophysical",
"methods",
"virology/viral",
"replication",
"and",
"gene",
"regulation"
] | 2009 | NMR Analysis of the Dynamic Exchange of the NS2B Cofactor between Open and Closed Conformations of the West Nile Virus NS2B-NS3 Protease |
In standard attractor neural network models , specific patterns of activity are stored in the synaptic matrix , so that they become fixed point attractors of the network dynamics . The storage capacity of such networks has been quantified in two ways: the maximal number of patterns that can be stored , and the stored i... | Two central hypotheses in neuroscience are that long-term memory is sustained by modifications of the connectivity of neural circuits , while short-term memory is sustained by persistent neuronal activity following the presentation of a stimulus . These two hypotheses have been substantiated by several decades of elect... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"neural",
"networks",
"computational",
"neuroscience",
"biology",
"and",
"life",
"sciences",
"computational",
"biology",
"neuroscience",
"learning",
"and",
"memory",
"coding",
"mechanisms"
] | 2014 | Memory Capacity of Networks with Stochastic Binary Synapses |
Homeostatic maintenance of tissues is orchestrated by well tuned networks of cellular signaling . Such networks regulate , in a stochastic manner , fates of all cells within the respective lineages . Processes such as symmetric and asymmetric divisions , differentiation , de-differentiation , and death have to be contr... | Tissue stability is the basic property of healthy organs , and yet the mechanisms governing the stable , long-term maintenance of cell numbers in tissues are poorly understood . While more and more signaling pathways are being discovered , for the most part it remains unknown how they are being put together by differen... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"cell",
"cycle",
"and",
"cell",
"division",
"population",
"dynamics",
"cell",
"processes",
"cell",
"differentiation",
"physiological",
"processes",
"developmental",
"biology",
"systems",
"science",
"mathematics",
"homeostasis",
"... | 2016 | Near Equilibrium Calculus of Stem Cells in Application to the Airway Epithelium Lineage |
Dengue virus ( DENV ) is the most prevalent and burdensome arbovirus transmitted by Aedes mosquitoes , against which there is only a limited licensed vaccine and no approved drug treatment . A Chromobacterium species , C . sp . Panama , isolated from the midgut of A . aegypti is able to inhibit DENV replication within ... | The global burden of dengue cannot be overstated , and lack of effective control measures , besides avoiding contact with the mosquito vector , creates an urgent need to develop new strategies to control the disease . Here we elucidate the mechanism by which a natural soil bacterium inhibits DENV infection . Chromobact... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"dengue",
"virus",
"medicine",
"and",
"health",
"sciences",
"pathology",
"and",
"laboratory",
"medicine",
"viral",
"transmission",
"and",
"infection",
"enzymes",
"pathogens",
"geographical",
"locations",
"enzymology",
"microbiology",
"viral",
"structure",
"panama",
"nor... | 2018 | Aminopeptidase secreted by Chromobacterium sp. Panama inhibits dengue virus infection by degrading the E protein |
The reshaping and decorrelation of similar activity patterns by neuronal networks can enhance their discriminability , storage , and retrieval . How can such networks learn to decorrelate new complex patterns , as they arise in the olfactory system ? Using a computational network model for the dominant neural populatio... | The olfactory bulb is one of only two brain regions in which new neurons are added persistently in substantial numbers even in adult animals . This leads to an ongoing turnover of interneurons , in particular of the inhibitory granule cells , which constitute the largest cell population of the olfactory bulb . The func... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"computational",
"neuroscience",
"biology",
"computational",
"biology",
"sensory",
"systems",
"neuroscience"
] | 2012 | Neurogenesis Drives Stimulus Decorrelation in a Model of the Olfactory Bulb |
One of the crucial steps in endochondral bone formation is the replacement of a cartilage matrix produced by chondrocytes with bone trabeculae made by osteoblasts . However , the precise sources of osteoblasts responsible for trabecular bone formation have not been fully defined . To investigate whether cells derived f... | During endochondral bone formation , which is responsible for the generation of most bones in mammals and many other species , osteoblasts deposit a bone-specific matrix on the surface of cartilage scaffolds made by chondrocytes and hypertrophic chondrocytes . It has long been thought that the terminally differentiated... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"biology",
"and",
"life",
"sciences"
] | 2014 | Chondrocytes Transdifferentiate into Osteoblasts in Endochondral Bone during Development, Postnatal Growth and Fracture Healing in Mice |
Phagocytosis and inflammation within the lungs is crucial for host defense during bacterial pneumonia . Triggering receptor expressed on myeloid cells ( TREM ) -2 was proposed to negatively regulate TLR-mediated responses and enhance phagocytosis by macrophages , but the role of TREM-2 in respiratory tract infections i... | Bacterial respiratory tract infections are a major cause of morbidity and mortality , and Streptococcus pneumoniae ( S . pneumoniae ) remains the main cause of community acquired pneumonia worldwide . The continued rise in antibiotic resistance stresses the need for better insights into the host defense mechanisms asso... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"infectious",
"diseases",
"medicine",
"and",
"health",
"sciences",
"biology",
"and",
"life",
"sciences",
"immunology",
"microbiology",
"pulmonology"
] | 2014 | The Triggering Receptor Expressed on Myeloid Cells 2 Inhibits Complement Component 1q Effector Mechanisms and Exerts Detrimental Effects during Pneumococcal Pneumonia |
Plant guard cells gate CO2 uptake and transpirational water loss through stomatal pores . As a result of decades of experimental investigation , there is an abundance of information on the involvement of specific proteins and secondary messengers in the regulation of stomatal movements and on the pairwise relationships... | Stomata are microscopic pores surrounded and regulated by pairs of guard cells located on the surface of plant leaves . Stomata participate in CO2 uptake , O2 release and water vapor loss . Blue and red light induce stomatal opening ( enlargement of the pores ) , which allows the uptake of CO2 , providing the raw mater... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods",
"Computational",
"implementation",
"and",
"tools"
] | [
"plant",
"anatomy",
"computer",
"and",
"information",
"sciences",
"plant",
"science",
"plant",
"physiology",
"simulation",
"and",
"modeling",
"network",
"analysis",
"biology",
"and",
"life",
"sciences",
"signaling",
"networks",
"leaves",
"stomata",
"mathematical",
"mo... | 2014 | Multi-level Modeling of Light-Induced Stomatal Opening Offers New Insights into Its Regulation by Drought |
Dengue is a mosquito-borne viral disease endemic in many countries in the tropics and sub-tropics . The disease affects mainly children , but in recent years it is becoming more of an adult disease . Malaysia experienced a large dengue outbreak in 2006 to 2007 , involving mostly adults , with a high number of deaths . ... | Dengue continues to be a major mosquito-borne disease of serious public health concern . Children are usually the most affected group , but in recent decades , dengue and severe dengue have become more common among adults . Here we reviewed ten fatal dengue cases with a view to determine if there have been changes in t... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"infectious",
"diseases",
"clinical",
"research",
"design",
"dengue",
"fever",
"neglected",
"tropical",
"diseases",
"retrospective",
"studies",
"dengue",
"viral",
"diseases"
] | 2013 | Review of Dengue Hemorrhagic Fever Fatal Cases Seen Among Adults: A Retrospective Study |
Despite having only begun ∼10 , 000 years ago , the process of domestication has resulted in a degree of phenotypic variation within individual species normally associated with much deeper evolutionary time scales . Though many variable traits found in domestic animals are the result of relatively recent human-mediated... | This study addresses why coat colors of domestic animals are so variable , while those of their wild ancestors are so uniform . Specifically , we asked whether this was the result of ( i ) relaxed purifying selection , ( ii ) that some mutations affect both coat color and another trait under strong selection ( for inst... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"genetics",
"and",
"genomics",
"evolutionary",
"biology/evolutionary",
"and",
"comparative",
"genetics"
] | 2009 | Contrasting Mode of Evolution at a Coat Color Locus in Wild and Domestic Pigs |
The role of Type I interferon ( IFN ) during pathogenic HIV and SIV infections remains unclear , with conflicting observations suggesting protective versus immunopathological effects . We therefore examined the effect of IFNα/β on T cell death and viremia in HIV infection . Ex vivo analysis of eight pro- and anti-apopt... | Type I interferons ( IFNα/β ) are innate immune mediators that are produced by cells in response to viral infections . Although the protective effects of IFNα/β are well-established , it is not clear whether these cytokines are beneficial or deleterious during HIV-1 infection . We report that HIV-1 infection renders T ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2013 | Type I Interferon Upregulates Bak and Contributes to T Cell Loss during Human Immunodeficiency Virus (HIV) Infection |
Members of the Rhizobiales ( class of α-proteobacteria ) display zonal peptidoglycan cell wall growth at one cell pole , contrasting with the dispersed mode of cell wall growth along the sidewalls of many other rod-shaped bacteria . Here we show that the seven-transmembrane receptor ( 7TMR ) protein RgsP ( SMc00074 ) ,... | Bacteria face the challenge of maintaining their peptidoglycan cell wall integrity during growth and division . The enzymes involved in cell wall biogenesis are tightly regulated and targeting of these enzymes by β-lactams cause cell death . In contrast to the well-characterized mode of dispersed cell wall formation in... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"cell",
"walls",
"cell",
"physiology",
"cell",
"cycle",
"and",
"cell",
"division",
"cell",
"processes",
"microbiology",
"light",
"microscopy",
"cell",
"polarity",
"plant",
"science",
"microscopy",
"materials",
"science",
"cell",
"growth",
"cellular",
"structures",
"... | 2018 | Seven-transmembrane receptor protein RgsP and cell wall-binding protein RgsM promote unipolar growth in Rhizobiales |
The COP9 signalosome ( CSN ) is a highly conserved multifunctional complex that has two major biochemical roles: cleaving NEDD8 from cullin proteins and maintaining the stability of CRL components . We used mutation analysis to confirm that the JAMM domain of the CSN-5 subunit is responsible for NEDD8 cleavage from cul... | Cullin-RING E3 ubiquitin ligases ( CRLs ) play important roles in regulating a wide range of processes , such as signal transduction , transcription , cell cycle progression , circadian rhythm , and development , via the ubiquitin-proteasome pathway . The activity and stability of CRLs is precisely controlled by the CO... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"developmental",
"biology",
"model",
"organisms",
"neurospora",
"crassa",
"genetics",
"yeast",
"and",
"fungal",
"models",
"biology",
"microbial",
"growth",
"and",
"development",
"microbiology",
"genetics",
"and",
"genomics",
"gene",
"function"
] | 2012 | Neurospora COP9 Signalosome Integrity Plays Major Roles for Hyphal Growth, Conidial Development, and Circadian Function |
To facilitate viral infection and spread , HIV-1 Nef disrupts the surface expression of the viral receptor ( CD4 ) and molecules capable of presenting HIV antigens to the immune system ( MHC-I ) . To accomplish this , Nef binds to the cytoplasmic tails of both molecules and then , by mechanisms that are not well unders... | HIV is unique among viral pathogens in its capacity to cause chronic and progressive disease in almost all infected people . To accomplish this , HIV must evade the host immune response , especially cytotoxic T lymphocytes ( CTLs ) , which normally function to lyse virally infected cells . HIV encodes a factor , Nef , ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"cell",
"biology",
"immunology/immunity",
"to",
"infections",
"virology/immune",
"evasion"
] | 2008 | HIV-1 Nef Targets MHC-I and CD4 for Degradation Via a Final Common β-COP–Dependent Pathway in T Cells |
Human African Trypanosomiasis ( HAT ) in West Africa is a lethal , neglected disease caused by Trypanosoma brucei gambiense transmitted by the tsetse Glossina palpalis gambiensis . Although the littoral part of Guinea with its typical mangrove habitat is the most prevalent area in West Africa , very few data are availa... | Human African Trypanosomiasis ( HAT ) in West Africa is a lethal , neglected disease caused by Trypanosoma brucei gambiense transmitted by the tsetse fly Glossina palpalis gambiensis . Although the littoral part of Guinea with its typical mangrove habitat is the most prevalent area in West Africa , very few data are av... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"public",
"health",
"and",
"epidemiology",
"infectious",
"disease",
"epidemiology",
"african",
"trypanosomiasis",
"population",
"genetics",
"parasitic",
"diseases",
"effective",
"population",
"size",
"neglected",
"tropical",
"diseases",
"tsetse",
"fly",
"zoolo... | 2012 | Epidemiology of Sleeping Sickness in Boffa (Guinea): Where Are the Trypanosomes? |
We investigated the relationship between bacterial load in Buruli ulcer ( BU ) lesions and the development of paradoxical reaction following initiation of antibiotic treatment . This was a longitudinal study involving BU patients from June 2013 to June 2017 . Fine needle aspirates ( FNA ) and swab samples were obtained... | Buruli ulcer is a neglected tropical skin disease caused by the third most common pathogenic mycobacterium: Mycobacterium ulcerans . Paradoxical reaction , a phenomenon observed in some patients is characterised by worsening of existing lesion ( s ) with attendant pain and occurrence of new lesions during or after anti... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"antimicrobials",
"medicine",
"and",
"health",
"sciences",
"pathology",
"and",
"laboratory",
"medicine",
"drugs",
"immunology",
"tropical",
"diseases",
"microbiology",
"bacterial",
"diseases",
"physiological",
"processes",
"signs",
"and",
"symptoms",
"antibiotics",
"ulcer... | 2019 | Paradoxical reactions in Buruli ulcer after initiation of antibiotic therapy: Relationship to bacterial load |
Dispersal is a critical life history behavior for mosquitoes and is important for the spread of mosquito-borne disease . We implemented the first stable isotope mark-capture study to measure mosquito dispersal , focusing on Culex pipiens in southwest suburban Chicago , Illinois , a hotspot of West Nile virus ( WNV ) tr... | The distance and direction of adult mosquitoes movement on the landscape are important processes in the spread of mosquito-borne diseases , and are critical to understand to the development of effective intervention programs . Here we present a novel approach to study adult mosquito dispersal by using stable isotope en... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"veterinary",
"diseases",
"urban",
"ecology",
"ecology",
"and",
"environmental",
"sciences",
"ecology",
"entomology",
"veterinary",
"virology",
"biology",
"and",
"life",
"sciences",
"zoology",
"veterinary",
"science"
] | 2014 | Dispersal of Adult Culex Mosquitoes in an Urban West Nile Virus Hotspot: A Mark-Capture Study Incorporating Stable Isotope Enrichment of Natural Larval Habitats |
Increased efforts in the assembly and analysis of connectome data are providing new insights into the principles underlying the connectivity of neural circuits . However , despite these considerable advances in connectomics , neuroanatomical data must be integrated with neurophysiological and behavioral data in order t... | Maps of the connections between neurons are being assembled for several organisms , including humans . But connectivity alone is insufficient for understanding the mechanisms of behavior . Nowhere is this more obvious than in the nematode C . elegans , where the nearly complete connectome has been available for over 25... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"neural",
"networks",
"neuroscience",
"animal",
"behavior",
"computational",
"neuroscience",
"theoretical",
"biology",
"biology",
"connectomics",
"computer",
"science",
"computer",
"modeling",
"neuroanatomy",
"computational",
"biology",
"evolutionary",
"biology",
"behavioral"... | 2013 | Connecting a Connectome to Behavior: An Ensemble of Neuroanatomical Models of C. elegans Klinotaxis |
Oral cholera vaccines ( OCVs ) are being increasingly employed , but current killed formulations generally require multiple doses and lack efficacy in young children . We recently developed a new live-attenuated OCV candidate ( HaitiV ) derived from a Vibrio cholerae strain isolated during the 2010 Haiti cholera epidem... | Oral cholera vaccines are increasingly used as public health tools for prevention of cholera and curtailing the spread of outbreaks . However , current killed vaccines provide minimal protection in young children , who are especially susceptible to this diarrheal disease , and require ~7–14 days between vaccination and... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"immune",
"physiology",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"vibrio",
"immunology",
"tropical",
"diseases",
"microbiology",
"vaccines",
"bacterial",
"diseases",
"vibrio",
"cholerae",
"neglected",
"tropical",
... | 2019 | Oral immunization with a probiotic cholera vaccine induces broad protective immunity against Vibrio cholerae colonization and disease in mice |
B-1 cells play a critical role in early protection during influenza infections by producing natural IgM antibodies . However , the underlying mechanisms involved in regulating this process are largely unknown . Here we found that during influenza infection pleural cavity B-1a cells rapidly infiltrated lungs , where the... | Influenza infection is highly localized in respiratory tract where immune response is triggered to provide protection from primary infection . Although natural IgM antibodies produced by B-1a cells have long been recognized as first-line protection against influenza , it remains unclear whether B-1a cell response occur... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2016 | IL-17A Promotes Pulmonary B-1a Cell Differentiation via Induction of Blimp-1 Expression during Influenza Virus Infection |
Kinesin is a family of molecular motors that move unidirectionally along microtubules ( MT ) using ATP hydrolysis free energy . In the family , the conventional two-headed kinesin was experimentally characterized to move unidirectionally through “walking” in a hand-over-hand fashion by coordinated motions of the two he... | It is one of the major issues in biophysics how molecular motors such as conventional two-headed kinesin convert the chemical energy released at ATP hydrolysis into mechanical work . While most molecular motors move with more than one catalytic domain working in coordinated fashions , there are some motors that can mov... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"physics",
"statistical",
"mechanics",
"theoretical",
"biology",
"biophysics",
"theory",
"biology",
"biophysics",
"simulations",
"biophysics"
] | 2013 | Structure-based Molecular Simulations Reveal the Enhancement of Biased Brownian Motions in Single-headed Kinesin |
Primate T-lymphotropic viruses type 1 ( PTLV-1 ) are complex retroviruses infecting both human ( HTLV-1 ) and simian ( STLV-1 ) hosts . They share common epidemiological , clinical and molecular features . In addition to the canonical gag , pol , env retroviral genes , PTLV-1 purportedly encodes regulatory ( i . e . Ta... | Primate T-lymphotropic viruses type 1 ( PTLV-1 ) are complex retroviruses infecting both human ( HTLV-1 ) and simian ( STLV-1 ) hosts . It has been shown that the persistence and pathogenesis of these viruses depend on the expression of small , accessory proteins . A bonnet macaque ( a monkey present in India ) was fou... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"taxonomy",
"vertebrates",
"animals",
"mammals",
"primates",
"phylogenetics",
"data",
"management",
"phylogenetic",
"analysis",
"genome",
"analysis",
"sequence",
"motif",
"analysis",
"molecular",
"biology",
"techniques",
"old",
"world",
"monkeys",
"research",
"and",
"an... | 2019 | Absence of accessory genes in a divergent simian T-lymphotropic virus type 1 isolated from a bonnet macaque (Macaca radiata) |
Tracking moving objects , including one’s own body , is a fundamental ability of higher organisms , playing a central role in many perceptual and motor tasks . While it is unknown how the brain learns to follow and predict the dynamics of objects , it is known that this process of state estimation can be learned purely... | A basic task for animals is to track objects—predators , prey , even their own limbs—as they move through the world . Because the position estimates provided by the senses are not error-free , higher levels of performance can be , and are , achieved when the velocity and acceleration , as well as the position , of the ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [] | 2015 | Learning to Estimate Dynamical State with Probabilistic Population Codes |
Gene expression during spore development in Bacillus subtilis is controlled by cell type-specific RNA polymerase sigma factors . σFand σE control early stages of development in the forespore and the mother cell , respectively . When , at an intermediate stage in development , the mother cell engulfs the forespore , σF ... | Precise temporal and cell-type specific regulation of gene expression is required for development of differentiated cells even in simple organisms . Endospore development by the bacterium Bacillus subtilis involves only two types of differentiated cells , a forespore that develops into the endospore , and a mother cell... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Material",
"and",
"Methods"
] | [] | 2015 | Dual-Specificity Anti-sigma Factor Reinforces Control of Cell-Type Specific Gene Expression in Bacillus subtilis |
Cystic echinococcosis ( CE ) is one of the most widespread helminthic zoonoses and is caused by the tapeworm Echinococcus granulosus complex . CE diagnosis and monitoring primarily rely on imaging techniques , complemented by serology . This is usually approached by the detection of IgG antibodies against hydatid fluid... | Cystic echinococcosis ( CE ) is a helminthic zoonosis caused by Echinococcus granulosus sensu lato . CE diagnosis and monitoring is of paramount importance for the clinical management of patients and primarily rely on imaging techniques , complemented by serology . CE serology is usually based on the detection of antib... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results",
"Discussion"
] | [
"cystic",
"echinococcosis",
"medicine",
"and",
"health",
"sciences",
"enzyme-linked",
"immunoassays",
"immune",
"physiology",
"pathology",
"and",
"laboratory",
"medicine",
"immunology",
"tropical",
"diseases",
"parasitic",
"diseases",
"surgical",
"and",
"invasive",
"medic... | 2018 | Evaluation of the recombinant antigens B2t and 2B2t, compared with hydatid fluid, in IgG-ELISA and immunostrips for the diagnosis and follow up of CE patients |
Research on mate choice has primarily focused on preferences for quality indicators , assuming that all individuals show consensus about who is the most attractive . However , in some species , mating preferences seem largely individual-specific , suggesting that they might target genetic or behavioral compatibility . ... | The last half century has seen a tremendous interest in the study of mate choice and the evolution of traits that make individuals attractive to others . In some species , however , individuals can differ substantially in who they find attractive , and this variation has typically been interpreted as “mate choice for c... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [] | 2015 | Fitness Benefits of Mate Choice for Compatibility in a Socially Monogamous Species |
The 1000 Genomes Project data provides a natural background dataset for amino acid germline mutations in humans . Since the direction of mutation is known , the amino acid exchange matrix generated from the observed nucleotide variants is asymmetric and the mutabilities of the different amino acids are very different .... | In this paper we compare the differences between ‘natural’ and disease-associated amino acid variants at both sequence as well as structural levels . We used data from the 1000 Genomes Project ( 1 kG ) , the OMIM database and UniProtKB Humsavar . The results highlight the complex interplay of features from the level of... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [] | 2013 | Amino Acid Changes in Disease-Associated Variants Differ Radically from Variants Observed in the 1000 Genomes Project Dataset |
Omics data integration is becoming necessary to investigate the genomic mechanisms involved in complex diseases . During the integration process , many challenges arise such as data heterogeneity , the smaller number of individuals in comparison to the number of parameters , multicollinearity , and interpretation and v... | At present , it is already possible to generate different type of omics–high throughput–data in the same individuals . However , we lack methodology to adequately combine them . Many challenges arise while the amount of data increases and we need to find the way to identify and understand the complex relationships when... | [
"Abstract",
"Introduction",
"Material",
"and",
"Methods",
"Results",
"Discussion"
] | [] | 2015 | Integration Analysis of Three Omics Data Using Penalized Regression Methods: An Application to Bladder Cancer |
The P2X4 receptor ( P2X4R ) is a member of a family of purinergic channels activated by extracellular ATP through three orthosteric binding sites and allosterically regulated by ivermectin ( IVM ) , a broad-spectrum antiparasitic agent . Treatment with IVM increases the efficacy of ATP to activate P2X4R , slows both re... | Ligand-gated ion channels play a crucial role in controlling many physiological and pathophysiological processes . Deciphering the gating kinetics of these channels is thus fundamental to understanding how these processes work . ATP-gated purinergic P2X receptors ( P2XRs ) are prototypic examples of such channels . The... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"allosteric",
"regulation",
"ion",
"channel",
"gating",
"medicine",
"and",
"health",
"sciences",
"markov",
"models",
"ions",
"enzymology",
"social",
"sciences",
"electrophysiology",
"permeability",
"neuroscience",
"simulation",
"and",
"modeling",
"ion",
"channels",
"mat... | 2017 | Deciphering the regulation of P2X4 receptor channel gating by ivermectin using Markov models |
Plant-associated microorganisms have been shown to critically affect host physiology and performance , suggesting that evolution and ecology of plants and animals can only be understood in a holobiont ( host and its associated organisms ) context . Host-associated microbial community structures are affected by abiotic ... | Under natural conditions , plant growth and behavior strongly depend on associated microbial communities called the microbiome . Much research has been performed to evaluate how the environment and plant genes help to determine the structure of the microbiome . Here , we show that interactions between microorganisms on... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"plant",
"anatomy",
"oomycetes",
"medicine",
"and",
"health",
"sciences",
"ecology",
"and",
"environmental",
"sciences",
"microbiome",
"pathology",
"and",
"laboratory",
"medicine",
"community",
"structure",
"brassica",
"microbiology",
"fungi",
"plant",
"science",
"model... | 2016 | Microbial Hub Taxa Link Host and Abiotic Factors to Plant Microbiome Variation |
Granule cells ( GCs ) are the major glutamatergic neurons in the cerebellum , and GC axon formation is an initial step in establishing functional cerebellar circuits . In the zebrafish cerebellum , GCs can be classified into rostromedial and caudolateral groups , according to the locations of their somata in the corres... | The cerebellum is involved in motor coordination and motor learning . Granule cells are the major excitatory neurons in the cerebellum . It is largely unknown how the formation of cerebellar neural circuits , including the elaboration of granule cell axons , is controlled . We investigated a zebrafish mutant shiomaneki... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Type IV Collagen Controls the Axogenesis of Cerebellar Granule Cells by Regulating Basement Membrane Integrity in Zebrafish |
Most bacterial glycoproteins identified to date are virulence factors of pathogenic bacteria , i . e . adhesins and invasins . However , the impact of protein glycosylation on the major human pathogen Staphylococcus aureus remains incompletely understood . To study protein glycosylation in staphylococci , we analyzed l... | Staphylococcus aureus is a serious pathogen that causes life-threatening infections due to its ability to attach to surfaces , form biofilms , and persist inside the host . One of previously identified virulence factors in S . aureus pathogenesis is the plasmin-sensitive surface protein Pls . We here identified Pls as ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"bacteriology",
"biofilms",
"medicine",
"and",
"health",
"sciences",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"microbiology",
"staphylococcus",
"aureus",
"plasmid",
"construction",
"methicillin-resistant",
"staphylococcus",
"aureus",
"dna",
"construction",
... | 2017 | The Plasmin-Sensitive Protein Pls in Methicillin-Resistant Staphylococcus aureus (MRSA) Is a Glycoprotein |
Complex structural connectivity of the mammalian brain is believed to underlie the versatility of neural computations . Many previous studies have investigated properties of small subsystems or coarse connectivity among large brain regions that are often binarized and lack spatial information . Yet little is known abou... | In a previous study , a data-driven large-scale model of mouse brain connectivity was constructed . This mouse brain connectivity model is estimated by a simplified model which only takes in account anatomy and distance dependence of connection strength which is best fit by a power law . The distance dependence model c... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"built",
"structures",
"neural",
"networks",
"engineering",
"and",
"technology",
"signal",
"processing",
"condensed",
"matter",
"physics",
"neuroscience",
"artificial",
"neural",
"networks",
"artificial",
"intelligence",
"white",
"noise",
"brain",
"mapping",
"network",
... | 2019 | Synchronization dependent on spatial structures of a mesoscopic whole-brain network |
The growth of plant organs is a complex process powered by osmosis that attracts water inside the cells; this influx induces simultaneously an elastic extension of the walls and pressure in the cells , called turgor pressure; above a threshold , the walls yield and the cells grow . Based on Lockhart’s seminal work , va... | Plant cells are surrounded by a rigid wall that prevents cell displacements and rearrangements as in animal tissues . Therefore , plant morphogenesis relies only on cell divisions , shape changes , and local modulation of growth rate . It has long been recognized that cell growth relies on the competition between osmos... | [
"Abstract",
"Introduction",
"Models",
"and",
"results",
"Discussion"
] | [
"cell",
"walls",
"plant",
"anatomy",
"stem",
"anatomy",
"classical",
"mechanics",
"plant",
"cell",
"biology",
"cell",
"cycle",
"and",
"cell",
"division",
"cell",
"processes",
"plant",
"physiology",
"osmotic",
"pressure",
"shoot",
"apical",
"meristem",
"plant",
"ce... | 2019 | Coupling water fluxes with cell wall mechanics in a multicellular model of plant development |
Expansions of trinucleotide GAA•TTC tracts are associated with the human disease Friedreich's ataxia , and long GAA•TTC tracts elevate genome instability in yeast . We show that tracts of ( GAA ) 230• ( TTC ) 230 stimulate mitotic crossovers in yeast about 10 , 000-fold relative to a “normal” DNA sequence; ( GAA ) n• (... | Although meiotic recombination has been much more studied than mitotic recombination , mitotic recombination is a universal property . Meiotic recombination rates are quite variable within the genome , with some chromosomal regions ( hotspots ) having much higher levels of exchange than other regions ( coldspots ) . Fo... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"genetics",
"and",
"genomics/chromosome",
"biology"
] | 2011 | Friedreich's Ataxia (GAA)n•(TTC)n Repeats Strongly Stimulate Mitotic Crossovers in Saccharomyces cerevisae |
During development , axons must integrate directional information encoded by multiple guidance cues and their receptors . Axon guidance receptors , such as UNC-40 ( DCC ) and SAX-3 ( Robo ) , can function individually or combinatorially with other guidance receptors to regulate downstream effectors . However , little i... | The nervous system is comprised of a complex network of axonal connections . This network is formed during development , when axons navigate to their target regions . Axon navigation requires multiple signaling pathways to detect and respond to extracellular guidance cues . Many of the guidance cues , receptors and sig... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | SYD-1C, UNC-40 (DCC) and SAX-3 (Robo) Function Interdependently to Promote Axon Guidance by Regulating the MIG-2 GTPase |
Indirect reciprocity , in which individuals help others with a good reputation but not those with a bad reputation , is a mechanism for cooperation in social dilemma situations when individuals do not repeatedly interact with the same partners . In a relatively large society where indirect reciprocity is relevant , ind... | Humans and other animals often help others even when the helping behavior is costly . Several mechanisms can explain the emergence and maintenance of cooperation . In one such mechanism called indirect reciprocity , individuals are rated according to their past behavior toward others . Individuals help others with a go... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"theoretical",
"biology",
"evolutionary",
"modeling",
"biology",
"computational",
"biology"
] | 2011 | Indirect Reciprocity under Incomplete Observation |
Neuronal synchronization reflected by oscillatory brain activity has been strongly implicated in the mechanisms supporting selective gating . We here aimed at identifying the anatomical pathways in humans supporting the top-down control of neuronal synchronization . We first collected diffusion imaging data using magne... | Directing attention to a part of visual space produces patterns of "brainwaves" or neuronal oscillations in the human visual cortex ( the part of the brain at the back that processes incoming information from the eyes ) ; oscillations at low frequencies are believed to help the brain block out irrelevant or distracting... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Frontoparietal Structural Connectivity Mediates the Top-Down Control of Neuronal Synchronization Associated with Selective Attention |
Viruses have evolved strategies to protect infected cells from apoptotic clearance . We present evidence that HIV-1 possesses a mechanism to protect infected macrophages from the apoptotic effects of the death ligand TRAIL ( tumor necrosis factor–related apoptosis-inducing ligand ) . In HIV-1–infected macrophages , the... | Much of our understanding regarding mechanisms of HIV-1 persistence has been derived from studies with lymphocytes . However , mechanisms governing persistent infection of macrophages are less well understood . We investigated whether HIV-1 modulates macrophage function in a way that promotes their persist infection . ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"infectious",
"diseases",
"cell",
"biology",
"macrophage",
"virology",
"in",
"vitro",
"hiv-1"
] | 2007 | Apoptotic Killing of HIV-1–Infected Macrophages Is Subverted by the Viral Envelope Glycoprotein |
The space-filling fractal network in the human lung creates a remarkable distribution system for gas exchange . Landmark studies have illuminated how the fractal network guarantees minimum energy dissipation , slows air down with minimum hardware , maximizes the gas- exchange surface area , and creates respiratory flex... | The possibility of predicting oxygen currents in the human lung under varying conditions may give new understanding of the lung's operation , new therapeutic interventions , and new designs for non-biological transport systems . We introduce such a computation which requires only a pocket calculator and agrees with mea... | [
"Abstract",
"Introduction",
"Methods",
"Results/Discussion"
] | [
"physics",
"mathematics",
"physiology",
"computational",
"biology",
"biophysics",
"respiratory",
"medicine"
] | 2010 | Reverse Engineering of Oxygen Transport in the Lung: Adaptation to Changing Demands and Resources through Space-Filling Networks |
HIV-1-infected cells in peripheral blood can be grouped into different transcriptional subclasses . Quantifying the turnover of these cellular subclasses can provide important insights into the viral life cycle and the generation and maintenance of latently infected cells . We used previously published data from five p... | Gaining a quantitative understanding of the development and turnover of different HIV-1-infected subpopulations of cells is crucial to improve the outcome of patients on combination antiretroviral therapy ( cART ) . The population of latently infected cells is of particular interest as they represent the major barrier ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"immunodeficiency",
"viruses",
"infectious",
"diseases",
"medicine",
"and",
"health",
"sciences",
"diagnostic",
"medicine",
"medical",
"microbiology",
"hiv",
"viral",
"pathogens",
"hiv",
"clinical",
"manifestations",
"microbial",
"pathogens",
"biology",
"and",
"life",
"... | 2014 | Quantifying the Turnover of Transcriptional Subclasses of HIV-1-Infected Cells |
We reported previously that a proportion of natural CD25+ cells isolated from the PBMC of HCV patients can further upregulate CD25 expression in response to HCV peptide stimulation in vitro , and proposed that virus-specific regulatory T cells ( Treg ) were primed and expanded during the disease . Here we describe epig... | Hepatitis C virus persistently infects ∼3% of the world population , leading to life threatening liver diseases and liver failure . It is not well understood why the human immune system often fails to clear the virus , although it is likely multi-factorial . It is accepted that effector T cells are critical for clearin... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"immunology/cellular",
"microbiology",
"and",
"pathogenesis",
"immunology/immunomodulation",
"immunology",
"immunology/immunity",
"to",
"infections"
] | 2009 | Analysis of FOXP3+ Regulatory T Cells That Display Apparent Viral Antigen Specificity during Chronic Hepatitis C Virus Infection |
Leprosy remains a public health problem in Brazil . Although the overall number of new cases is declining , there are still areas with a high disease burden , such as Pará State in the north of the country . We aim to predict future trends in new case detection rate ( NCDR ) and explore the potential impact of contact ... | Leprosy remains a public health problem in Brazil . With over 30 , 000 new cases detected annually , it has the second-largest number of leprosy cases detected worldwide . Although the overall number of new cases is declining , there are still areas with a high disease burden , such as Pará State . In this study , we u... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"mycobacterium",
"leprae",
"medicine",
"and",
"health",
"sciences",
"immunology",
"tropical",
"diseases",
"geographical",
"locations",
"india",
"preventive",
"medicine",
"bacterial",
"diseases",
"mathematics",
"extrapolation",
"neglected",
"tropical",
"diseases",
"vaccinati... | 2016 | Leprosy New Case Detection Trends and the Future Effect of Preventive Interventions in Pará State, Brazil: A Modelling Study |
With the emergence of leishmaniasis in new regions around the world , molecular epidemiological methods with adequate discriminatory power , reproducibility , high throughput and inter-laboratory comparability are needed for outbreak investigation of this complex parasitic disease . As multilocus sequence analysis ( ML... | Molecular epidemiology of infectious diseases , which uses pathogen genetics to determine risk factors in the human population , is commonly employed to assist in outbreak investigation . While definitive genetic markers and techniques have been developed for several other bacterial , viral , and parasitic pathogens , ... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"molecular",
"epidemiology",
"infectious",
"disease",
"epidemiology",
"epidemiology",
"genetics",
"molecular",
"genetics",
"population",
"genetics",
"biology",
"microbiology",
"parasitology"
] | 2014 | Multilocus Sequence Analysis for Leishmania braziliensis Outbreak Investigation |
The idea that most morphological adaptations can be attributed to changes in the cis-regulation of gene expression levels has been gaining increasing acceptance , despite the fact that only a handful of such cases have so far been demonstrated . Moreover , because each of these cases involves only one gene , we lack an... | Evolution can involve changes that are advantageous—known as adaptations—as well as changes that are neutral or slightly deleterious , which are established through a process of random drift . Discerning what specific differences between any two lineages are adaptive is a major goal of evolutionary biology . For gene e... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"genomics",
"genetics",
"biology",
"computational",
"biology",
"evolutionary",
"biology",
"genetics",
"and",
"genomics"
] | 2011 | Systematic Detection of Polygenic cis-Regulatory
Evolution |
Symptoms and signs of leptospirosis are non-specific . Several diagnostic tests for leptospirosis are available and in some instances are being used prior to treatment of leptospirosis-suspected patients . There is therefore a need to evaluate the cost-effectiveness of the different treatment strategies in order to avo... | Symptoms and signs of leptospirosis are non-specific . A number of diagnostic tests for leptospirosis are available . We compared the cost-benefit of 5 management strategies: 1 ) no patients tested or given antibiotic treatment; 2 ) all patients given empirical doxycycline treatment; patients given doxycycline when a p... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"infectious",
"diseases/neglected",
"tropical",
"diseases"
] | 2010 | Strategies for Diagnosis and Treatment of Suspected Leptospirosis: A Cost-Benefit Analysis |
Visceral Leishmaniasis ( VL ) has spread to many urban centers worldwide . Dogs are considered the main reservoir of VL , because canine cases often precede the occurrence of human cases . Detection and euthanasia of serologically positive dogs is one of the primary VL control measures utilized in some countries , incl... | Visceral Leishmaniasis ( VL ) is a major public health problem . Its control is based on detection and culling of positive dogs , treatment of human cases and vector control . Canine cases often precede the occurrence of human cases; hence , disease control in dogs is important . Use of accurate diagnostic tests is req... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [] | 2016 | The Rapid Test Based on Leishmania infantum Chimeric rK28 Protein Improves the Diagnosis of Canine Visceral Leishmaniasis by Reducing the Detection of False-Positive Dogs |
Parasitic nematodes impose a debilitating health and economic burden across much of the world . Nematode resistance to anthelmintic drugs threatens parasite control efforts in both human and veterinary medicine . Despite this threat , the genetic landscape of potential resistance mechanisms to these critical drugs rema... | The treatment of roundworm ( nematode ) infections in both humans and animals relies on a small number of anti-parasitic drugs . Resistance to these drugs has appeared in veterinary parasite populations and is a growing concern in human medicine . A better understanding of the genetic basis for parasite drug resistance... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results",
"and",
"discussion"
] | [
"invertebrates",
"medicine",
"and",
"health",
"sciences",
"chemical",
"compounds",
"quantitative",
"trait",
"loci",
"caenorhabditis",
"animals",
"organic",
"compounds",
"parasitology",
"animal",
"models",
"caenorhabditis",
"elegans",
"model",
"organisms",
"experimental",
... | 2018 | Discovery of genomic intervals that underlie nematode responses to benzimidazoles |
Plants respond to different stresses by inducing or repressing transcription of partially overlapping sets of genes . In Arabidopsis , the PHR1 transcription factor ( TF ) has an important role in the control of phosphate ( Pi ) starvation stress responses . Using transcriptomic analysis of Pi starvation in phr1 , and ... | As sessile organisms , plants are often exposed to stress conditions , and have evolved adaptive responses to protect themselves from different types of stress . Some responses are stress type-specific whereas others are common to different stress types . Understanding how these responses are controlled is crucial for ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"plant",
"biology/plant-environment",
"interactions",
"genetics",
"and",
"genomics/plant",
"genetics",
"and",
"gene",
"expression",
"plant",
"biology/plant",
"biochemistry",
"and",
"physiology"
] | 2010 | A Central Regulatory System Largely Controls Transcriptional Activation and Repression Responses to Phosphate Starvation in Arabidopsis |
Interspecies transmission of prions is a well-established phenomenon , both experimentally and under field conditions . Upon passage through new hosts , prion strains have proven their capacity to change their properties and this is a source of strain diversity which needs to be considered when assessing the potential ... | Prions , the infectious agents responsible for causing mad cow disease , amongst other diseases , can transmit from one species to another . For example , Bovine Spongiform Encephalopathy can transmit to humans resulting in invariably fatal variant Creutzfeldt-Jakob Disease . We wanted to study the susceptibility of ra... | [
"Abstract",
"Introduction",
"Results",
"Materials",
"and",
"Methods",
"Discussion"
] | [] | 2015 | Transgenic Mouse Bioassay: Evidence That Rabbits Are Susceptible to a Variety of Prion Isolates |
Fungi , such as Candida spp . , are commonly found on the skin and at mucosal surfaces . Yet , they rarely cause invasive infections in immunocompetent individuals , an observation reflecting the ability of our innate immune system to control potentially invasive microbes found at biological boundaries . Antimicrobial ... | It has been estimated that humans contain about 1 kg of microbes , an observation that reflects our coexistence with colonizing microbes such as bacteria and fungi . The fungal species Candida is present as a commensal at mucosal surfaces and on skin . Although it may cause life-threatening infections , such as sepsis ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"infectious",
"diseases/fungal",
"infections",
"immunology/innate",
"immunity",
"dermatology/skin",
"infections"
] | 2008 | Histidine-Rich Glycoprotein Protects from Systemic Candida Infection |
The splicing regulator Polypyrimidine Tract Binding Protein ( PTBP1 ) has four RNA binding domains that each binds a short pyrimidine element , allowing recognition of diverse pyrimidine-rich sequences . This variation makes it difficult to evaluate PTBP1 binding to particular sites based on sequence alone and thus to ... | A key step in the regulation of mammalian genes is the splicing of the messenger RNA precursor to produce a mature mRNA that can be translated into a particular protein needed by the cell . Through the process of alternative splicing , mRNAs encoding different proteins can be derived from the same primary gene transcri... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"sequence",
"analysis",
"biochemistry",
"rna",
"rna",
"processing",
"nucleic",
"acids",
"gene",
"regulation",
"gene",
"expression",
"genetics",
"molecular",
"genetics",
"gene",
"splicing",
"biology",
"computational",
"biology"
] | 2014 | De Novo Prediction of PTBP1 Binding and Splicing Targets Reveals Unexpected Features of Its RNA Recognition and Function |
Transcription in mammalian nuclei is highly compartmentalized in RNA polymerase II-enriched nuclear foci known as transcription factories . Genes in cis and trans can share the same factory , suggesting that genes migrate to preassembled transcription sites . We used fluorescent in situ hybridization to investigate the... | Many different types of cancer result from gene translocations . Specifically , two different chromosomes can be joined that fuse growth control genes with powerful regulatory elements , leading to unrestricted control of cell growth . Translocation partner genes must physically encounter each other in the nucleus to u... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"oncology",
"cell",
"biology",
"mammals",
"immunology",
"mus",
"(mouse)",
"molecular",
"biology",
"genetics",
"and",
"genomics",
"hematology"
] | 2007 | Myc Dynamically and Preferentially Relocates to a Transcription Factory Occupied by Igh |
Implantable electrode arrays are widely used in therapeutic stimulation of the nervous system ( e . g . cochlear , retinal , and cortical implants ) . Currently , most neural prostheses use serial stimulation ( i . e . one electrode at a time ) despite this severely limiting the repertoire of stimuli that can be applie... | Implantable multi-electrode arrays ( MEAs ) are used to record neurological signals and stimulate the nervous system to restore lost function ( e . g . cochlear implants ) . MEAs that can combine both sensing and stimulation will revolutionize the development of the next generation of devices . Simple models that can a... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"action",
"potentials",
"engineering",
"and",
"technology",
"signal",
"processing",
"membrane",
"potential",
"ocular",
"anatomy",
"retinal",
"ganglion",
"cells",
"electrophysiology",
"neuroscience",
"surgical",
"and",
"invasive",
... | 2016 | A Simple and Accurate Model to Predict Responses to Multi-electrode Stimulation in the Retina |
Many neurodegenerative diseases have a hallmark regional and cellular pathology . Gene expression analysis of healthy tissues may provide clues to the differences that distinguish resistant and sensitive tissues and cell types . Comparative analysis of gene expression in healthy mouse and human brain provides a framewo... | Animal models of human neurodegenerative and psychiatric disorders , particularly mouse models , have assumed a central role in biomedical research aimed at discovering the causes of disease and generating novel , mechanism-based treatments . But to what degree can a mouse brain serve as a model for a human brain ? Her... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods",
"Supporting",
"Information"
] | [
"evolutionary",
"biology",
"neuroscience",
"homo",
"(human)",
"mus",
"(mouse)"
] | 2007 | Conservation of Regional Gene Expression in Mouse and Human Brain |
An important goal in researching the biology of olfaction is to link the perception of smells to the chemistry of odorants . In other words , why do some odorants smell like fruits and others like flowers ? While the so-called stimulus-percept issue was resolved in the field of color vision some time ago , the relation... | An important issue in olfaction sciences deals with the question of how a chemical information can be translated into percepts . This is known as the stimulus-percept problem . Here , we set out to better understand this issue by combining knowledge about the chemistry and cognition of smells with computational olfacti... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"smell",
"chemical",
"compounds",
"statistics",
"social",
"sciences",
"neuroscience",
"data",
"mining",
"perception",
"physicochemical",
"properties",
"cognitive",
"psychology",
"scientists",
"forecasting",
"odorants",
"mathematics",
"materials",
"science",
"information",
"... | 2019 | Chemical features mining provides new descriptive structure-odor relationships |
Cells typically vary in their response to extracellular ligands . Receptor transport processes modulate ligand-receptor induced signal transduction and impact the variability in cellular responses . Here , we quantitatively characterized cellular variability in erythropoietin receptor ( EpoR ) trafficking at the single... | Cell surface receptors translate extracellular ligand concentrations to intracellular responses . Receptor transport between the plasma membrane and other cellular compartments regulates the number of accessible receptors at the plasma membrane that determines the strength of downstream pathway activation at a given li... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"physiology",
"medicine",
"and",
"health",
"sciences",
"vesicles",
"endocrine",
"physiology",
"hormone",
"transport",
"membrane",
"receptor",
"signaling",
"cellular",
"structures",
"and",
"organelles",
"intracellular",
"receptors",
"proteins",
"endocrinology",
"me... | 2017 | Correlated receptor transport processes buffer single-cell heterogeneity |
The precision with which visual information can be recalled from working memory declines as the number of items in memory increases . This finding has been explained in terms of the distribution of a limited representational resource between items . Here we investigated how the sensory strength of memoranda affects res... | Investigations of visual short-term memory typically involve memorising clearly visible objects with elementary features , such as monochromatic disks or oriented bars . Results of such studies indicate that memory is allocated like a limited resource , i . e . shared out between objects . However , in daily life we ar... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"engineering",
"and",
"technology",
"signal",
"processing",
"social",
"sciences",
"neuroscience",
"learning",
"and",
"memory",
"noise",
"reduction",
"cognitive",
"neuroscience",
"cognition",
"computational",
"neuroscience",
"memory",
"vision",
"neuronal",
"tuning",
"codin... | 2018 | Internal but not external noise frees working memory resources |
Plant viruses move through plasmodesmata to infect new cells . The plant endoplasmic reticulum ( ER ) is interconnected among cells via the ER desmotubule in the plasmodesma across the cell wall , forming a continuous ER network throughout the entire plant . This ER continuity is unique to plants and has been postulate... | Plant viruses may use different host cell transport machineries to move from one cell to another through plasmodesmata . The contribution of host cell transport systems to the intercellular movement of multipartite negative-strand RNA plant viruses including tospoviruses is poorly understood . We used Tomato spotted wi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"cell",
"physiology",
"plant",
"anatomy",
"medicine",
"and",
"health",
"sciences",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"endoplasmic",
"reticulum",
"cell",
"processes",
"microbiology",
"brassica",
"viruses",
"membrane",
"proteins",
"plant",
"scienc... | 2016 | The ER-Membrane Transport System Is Critical for Intercellular Trafficking of the NSm Movement Protein and Tomato Spotted Wilt Tospovirus |
The putative link between gene expression of brain regions and their neural connectivity patterns is a fundamental question in neuroscience . Here this question is addressed in the first large scale study of a prototypical mammalian rodent brain , using a combination of rat brain regional connectivity data with gene ex... | Brain connectivity is believed to be associated with gene expression levels in the developing and the adult animal . Recently , this association has been explored in two model animals: the worm C . elegans at the level of single neurons; and the mouse , where specific subpopulations of neurons in the hippocampus were s... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"genomics",
"computational",
"neuroscience",
"biology",
"computational",
"biology",
"neuroscience",
"genetics",
"and",
"genomics"
] | 2011 | Gene Expression in the Rodent Brain is Associated with Its Regional Connectivity |
Lactoferrin is a multifunctional mammalian immunity protein that limits microbial growth through sequestration of nutrient iron . Additionally , lactoferrin possesses cationic protein domains that directly bind and inhibit diverse microbes . The implications for these dual functions on lactoferrin evolution and genetic... | Immunity genes can evolve rapidly in response to antagonism by microbial pathogens , but how the emergence of new protein functions impacts such evolutionary conflicts remains unclear . Here we have traced the evolutionary history of the lactoferrin gene in primates , which in addition to an ancient iron-binding functi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"bacteriology",
"antimicrobials",
"organismal",
"evolution",
"medicine",
"and",
"health",
"sciences",
"drugs",
"population",
"genetics",
"microbiology",
"vertebrates",
"animals",
"mammals",
"primates",
"microbial",
"evolution",
"pharmacology",
"population",
"biology",
"evol... | 2016 | Antimicrobial Functions of Lactoferrin Promote Genetic Conflicts in Ancient Primates and Modern Humans |
RNA-binding proteins ( RBPs ) have roles in the regulation of many post-transcriptional steps in gene expression , but relatively few RBPs have been systematically studied . We searched for the RNA targets of 40 proteins in the yeast Saccharomyces cerevisiae: a selective sample of the approximately 600 annotated and pr... | Regulation of gene transcription has been extensively studied , but much less is known about how the fates of the resulting mRNA transcripts are regulated . We were intrigued by the fact that while most eukaryotic genomes encode hundreds of RNA-binding proteins ( RBPs ) , the targets and regulatory roles of only a smal... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"molecular",
"biology",
"genetics",
"and",
"genomics"
] | 2008 | Diverse RNA-Binding Proteins Interact with Functionally Related Sets of RNAs, Suggesting an Extensive Regulatory System |
Oligomers of length k , or k-mers , are convenient and widely used features for modeling the properties and functions of DNA and protein sequences . However , k-mers suffer from the inherent limitation that if the parameter k is increased to resolve longer features , the probability of observing any specific k-mer beco... | Genomic regulatory elements ( enhancers , promoters , and insulators ) control the expression of their target genes and are widely believed to play a key role in human development and disease by altering protein concentrations . A fundamental step in understanding enhancers is the development of DNA sequence-based mode... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"sequencing",
"techniques",
"sequence",
"analysis",
"computer",
"and",
"information",
"sciences",
"functional",
"genomics",
"molecular",
"biology",
"network",
"analysis",
"genetics",
"regulatory",
"networks",
"biology",
"and",
"life",
"sciences",
"molecular",
"biology",
... | 2014 | Enhanced Regulatory Sequence Prediction Using Gapped k-mer Features |
The exclusive localization of the histone H3 variant CENP-A to centromeres is essential for accurate chromosome segregation . Ubiquitin-mediated proteolysis helps to ensure that CENP-A does not mislocalize to euchromatin , which can lead to genomic instability . Consistent with this , overexpression of the budding yeas... | Chromosomes carry the genetic material in cells . When cells divide , each daughter cell must inherit a single copy of each chromosome . The centromere is the locus on each chromosome that ensures the equal distribution of chromosomes during cell division . One essential protein involved in this task is CENP-ACse4 , wh... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"chromosome",
"structure",
"and",
"function",
"molecular",
"probe",
"techniques",
"centromeres",
"dna-binding",
"proteins",
"immunoblotting",
"dna",
"transcription",
"fungi",
"model",
"organisms",
"genome",
"analysis",
"epigenetics",
"molecular",
"biology",
"techniques",
... | 2016 | Regulation of Budding Yeast CENP-A levels Prevents Misincorporation at Promoter Nucleosomes and Transcriptional Defects |
Ovulation is critical for successful reproduction and correlates with ovarian cancer risk , yet genetic studies of ovulation have been limited . It has long been thought that the mechanism controlling ovulation is highly divergent due to speciation and fast evolution . Using genetic tools available in Drosophila , we n... | Sexual reproduction is thought to be a highly divergent process due to fast evolution and speciation . For example , sperm from one species can seldom fertilize eggs from another species , indicating that different molecular machinery for fertilization is applied in different species . In contrast to this divergent vie... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Matrix Metalloproteinase 2 Is Required for Ovulation and Corpus Luteum Formation in Drosophila |
Activation-induced cytidine deaminase ( AID ) is required for initiation of Ig class switch recombination ( CSR ) and somatic hypermutation ( SHM ) of antibody genes during immune responses . AID has also been shown to induce chromosomal translocations , mutations , and DNA double-strand breaks ( DSBs ) involving non-I... | Activation-induced cytidine deaminase ( AID ) is required for diversifying antibodies during immune responses , and it does this by introducing mutations and DNA breaks into antibody genes . How AID is targeted is not understood , and it induces chromosomal translocations , mutations , and double-strand breaks ( DSBs )... | [
"Abstract",
"Introduction",
"Results",
"and",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Nbs1 ChIP-Seq Identifies Off-Target DNA Double-Strand Breaks Induced by AID in Activated Splenic B Cells |
Annual influenza epidemics and occasional pandemics pose a severe threat to human health . Host cell factors required for viral spread but not for cellular survival are attractive targets for novel approaches to antiviral intervention . The cleavage activation of the influenza virus hemagglutinin ( HA ) by host cell pr... | Seasonal influenza epidemics and pandemics represent a serious health threat to the human population . Resistance to presently available anti-viral drugs is frequently observed . Therefore , identification of new targets for anti-viral therapy is an urgent need . Host proteases are required for processing of the virus ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2013 | Tmprss2 Is Essential for Influenza H1N1 Virus Pathogenesis in Mice |
Viral diseases of the respiratory tract , which include influenza pandemic , children acute bronchiolitis , and viral pneumonia of the elderly , represent major health problems . Plasmacytoid dendritic cells play an important role in anti-viral immunity , and these cells were recently shown to express ChemR23 , the rec... | Infections of the lower respiratory tract by single-stranded RNA viruses represent a major health problem worldwide . Animal models indicate that the severity of infections caused by these viruses is due essentially to an excessive primary immune response of the host , rather than the direct cytopathogenicity of the vi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"medicine",
"respiratory",
"infections",
"immunity",
"to",
"infections",
"immunology",
"pulmonology",
"viral",
"pneumonia",
"infectious",
"diseases",
"inflammation",
"respiratory",
"syncytial",
"virus",
"infection",
"immune",
"response",
"clinical",
"immunology",
"immunity"... | 2011 | ChemR23 Dampens Lung Inflammation and Enhances Anti-viral Immunity in a Mouse Model of Acute Viral Pneumonia |
In the murine model of Leishmania major infection , resistance or susceptibility to the parasite has been associated with the development of a Th1 or Th2 type of immune response . Recently , however , the immunosuppressive effects of IL-10 have been ascribed a crucial role in the development of the different clinical c... | The clinical symptoms caused by infections with Leishmania parasites range from self-healing cutaneous to uncontrolled visceral disease and depend not only on the parasite species but also on the type of the host's immune response . It is estimated that 350 million people worldwide are at risk , with a global incidence... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"medicine",
"infectious",
"diseases",
"clinical",
"immunology"
] | 2013 | T Cell-Derived IL-10 Determines Leishmaniasis Disease Outcome and Is Suppressed by a Dendritic Cell Based Vaccine |
Epidemic transitions are an important feature of infectious disease systems . As the transmissibility of a pathogen increases , the dynamics of disease spread shifts from limited stuttering chains of transmission to potentially large scale outbreaks . One proposed method to anticipate this transition are early-warning ... | Anticipating disease emergence is a challenging problem , however the public health ramifications are clear . A proposed tool to help meet this challenge are early-warning signals ( EWS ) , summary statistics which undergo characteristic changes before dynamical transitions . While previous theoretical studies are prom... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"pathology",
"and",
"laboratory",
"medicine",
"infectious",
"disease",
"epidemiology",
"pathogens",
"mathematical",
"models",
"epidemiological",
"methods",
"and",
"statistics",
"probability",
"distribution",
"mathematics",
"stochasti... | 2018 | Anticipating epidemic transitions with imperfect data |
Breast cancer mortality is primarily due to metastasis rather than primary tumors , yet relatively little is understood regarding the etiology of metastatic breast cancer . Previously , using a mouse genetics approach , we demonstrated that inherited germline polymorphisms contribute to metastatic disease , and that th... | Estrogen receptor-negative ( ER- ) breast cancer is a highly malignant form of breast cancer with poor prognosis . Like most solid tumors , the mortality associated with ER- breast cancer is due to the development of secondary tumors , or metastases , in vital organs distant from the original breast tumor . ER- breast ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"medicine",
"and",
"health",
"sciences",
"breast",
"tumors",
"quantitative",
"trait",
"loci",
"cancers",
"and",
"neoplasms",
"basic",
"cancer",
"research",
"oncology",
"chronobiology",
"mammalian",
"genomics",
"epigenetics",
"chromosome",
"6",
"chromatin",
"chromosome",... | 2016 | The Circadian Rhythm Gene Arntl2 Is a Metastasis Susceptibility Gene for Estrogen Receptor-Negative Breast Cancer |
Knockdown resistance ( kdr ) to dichlorodiphenyltrichloroethane ( DDT ) and pyrethroids is known to link amino acid substitutions in the voltage-gated sodium channel ( VGSC ) in Aedes aegypti . Dengue fever primarily transmitted by Ae . aegypti is an annual public health issue in Taiwan . Accordingly , pyrethroid insec... | VGSC mutations of Aedes aegypti threaten vector control programs and have been brought to attention in dengue endemic areas . Taiwan has suffered dengue outbreaks , which usually begin from an imported case . Pyrethroid insecticides were used to kill infectious females and adults in the surrounding environment of each ... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"invertebrates",
"medicine",
"and",
"health",
"sciences",
"geographical",
"locations",
"animals",
"genetic",
"mapping",
"mutation",
"insect",
"vectors",
"infectious",
"diseases",
"genome",
"complexity",
"agrochemicals",
"taiwan",
"aedes",
"aegypti",
"disease",
"vectors",
... | 2019 | Voltage-gated sodium channel intron polymorphism and four mutations comprise six haplotypes in an Aedes aegypti population in Taiwan |
Bone and lung metastases are responsible for the majority of deaths in patients with breast cancer . Following treatment of the primary cancer , emotional and psychosocial factors within this population precipitate time to recurrence and death , however the underlying mechanism ( s ) remain unclear . Using a mouse mode... | Improved detection programs and better drugs to eradicate breast tumors have increased survival in women with breast cancer . However , pain and metastasis to distant organs , including bone , remain significant clinical problems . Understanding why and how metastatic cancer cells colonize specific organs is therefore ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"medicine",
"cancer",
"treatment",
"anatomy",
"and",
"physiology",
"oncology",
"bone",
"signaling",
"pathways",
"adrenergic",
"signal",
"transduction",
"musculoskeletal",
"system",
"biology",
"molecular",
"biology",
"autonomic",
"nervous",
"system",
"signal",
"transductio... | 2012 | Stimulation of Host Bone Marrow Stromal Cells by Sympathetic Nerves Promotes Breast Cancer Bone Metastasis in Mice |
Therapeutics with novel modes of action and a low risk of generating resistance are urgently needed to combat drug-resistant Plasmodium falciparum malaria . Here , we report that the peptide vinyl sulfones WLL-vs ( WLL ) and WLW-vs ( WLW ) , highly selective covalent inhibitors of the P . falciparum proteasome , potent... | The spread of artemisinin-resistant Plasmodium falciparum malaria across Southeast Asia creates an imperative to develop new treatment options with compounds that are not susceptible to existing mechanisms of antimalarial drug resistance . Recent work has identified the P . falciparum proteasome as a promising drug tar... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"trophozoites",
"parasite",
"groups",
"medicine",
"and",
"health",
"sciences",
"chemical",
"compounds",
"plasmodium",
"methylenes",
"cancer",
"treatment",
"drugs",
"microbiology",
"parasitology",
"antimalarials",
"oncology",
"mutation",
"apicomplexa",
"methylene",
"blue",
... | 2019 | Covalent Plasmodium falciparum-selective proteasome inhibitors exhibit a low propensity for generating resistance in vitro and synergize with multiple antimalarial agents |
The DNA uptake of naturally competent bacteria has been attributed to the action of DNA uptake machineries resembling type IV pilus complexes . However , the protein ( s ) for pulling the DNA across the outer membrane of Gram-negative bacteria remain speculative . Here we show that the competence protein ComEA binds in... | Horizontal gene transfer ( HGT ) plays a key role in transferring genetic information from one organism to another . Natural competence for transformation is one of three modes of HGT used by bacteria to promote the uptake of free DNA from the surrounding . The human pathogen Vibrio cholerae enters such a competence st... | [
"Abstract",
"Introduction",
"Results",
"and",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"bacteriology",
"microbial",
"evolution",
"protein",
"structure",
"microbial",
"pathogens",
"microbiology",
"biology",
"computational",
"biology",
"macromolecular",
"structure",
"analysis"
] | 2014 | ComEA Is Essential for the Transfer of External DNA into the Periplasm in Naturally Transformable Vibrio cholerae Cells |
Cognitive and behavioral disorders are thought to be a result of neuronal dysfunction , but the underlying molecular defects remain largely unknown . An important signaling pathway involved in the regulation of neuronal function is the cyclic AMP/Protein kinase A pathway . We here show an essential role for coronin 1 ,... | Memory and behavior depend on the proper transduction of signals in the brain , but the underlying molecular mechanisms remain largely unknown . Coronin 1 is a member of a highly conserved family of proteins , and although its gene lies in a chromosome region associated with neurobehavioral dysfunction in mice and men ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"cell",
"signaling",
"signal",
"transduction",
"molecular",
"neuroscience",
"cell",
"biology",
"biology",
"and",
"life",
"sciences",
"neuroscience"
] | 2014 | Coronin 1 Regulates Cognition and Behavior through Modulation of cAMP/Protein Kinase A Signaling |
DNA repair mechanisms in mitotically proliferating cells avoid generating crossovers , which can contribute to genome instability . Most models for the production of crossovers involve an intermediate with one or more four-stranded Holliday junctions ( HJs ) , which are resolved into duplex molecules through cleavage b... | The maintenance of a stable genome is crucial to organismal survival . Genome stability is perpetually threatened by spontaneous DNA damage , and DNA repair proteins are required to accurately and efficiently repair DNA damage in ways that minimize genome alterations . Some repair pathways are linked to increased risk ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"molecular",
"cell",
"biology",
"cell",
"biology",
"chromosome",
"biology",
"genetics",
"molecular",
"genetics",
"biology",
"genomics",
"genetics",
"and",
"genomics"
] | 2011 | Three Structure-Selective Endonucleases Are Essential in the Absence of BLM Helicase in Drosophila |
Rapid assignment of bacterial pathogens into predefined populations is an important first step for epidemiological tracking . For clonal species , a single allele can theoretically define a population . For non-clonal species such as Burkholderia pseudomallei , however , shared allelic states between distantly related ... | Burkholderia pseudomallei is a soil-dwelling bacterium that can infect a large range of hosts . In humans , B . pseudomallei causes melioidosis , and typical routes of entry include open wounds , inhalation , or ingestion . Clinical features are diverse , although pneumonia and abscess formation are common . High rates... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"and",
"Discussion"
] | [
"emerging",
"infectious",
"diseases",
"population",
"genetics",
"biology",
"evolutionary",
"biology",
"microbiology",
"bacterial",
"pathogens"
] | 2011 | Epidemiological Tracking and Population Assignment of the Non-Clonal Bacterium, Burkholderia pseudomallei |
Cyclosporin A ( CsA ) has important anti-microbial activity against parasites of the genus Leishmania , suggesting CsA-binding cyclophilins ( CyPs ) as potential drug targets . However , no information is available on the genetic diversity of this important protein family , and the mechanisms underlying the cytotoxic e... | Visceral leishmanisasis , also known as Kala Azar , is caused by the protozoan parasite Leishmania donovani . The L . donovani infectious cycle comprises two developmental stages , a motile promastigote stage that proliferates inside the digestive tract of the phlebotomine insect host , and a non-motile amastigote stag... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [
"computational",
"biology/sequence",
"motif",
"analysis",
"cell",
"biology/cellular",
"death",
"and",
"stress",
"responses",
"infectious",
"diseases/neglected",
"tropical",
"diseases",
"infectious",
"diseases/protozoal",
"infections",
"infectious",
"diseases/antimicrobials",
"a... | 2010 | Cyclosporin A Treatment of Leishmania donovani Reveals Stage-Specific Functions of Cyclophilins in Parasite Proliferation and Viability |
Albeit genetically highly heterogeneous , muscular dystrophies ( MDs ) share a convergent pathology leading to muscle wasting accompanied by proliferation of fibrous and fatty tissue , suggesting a common MD–pathomechanism . Here we show that mutations in muscular dystrophy genes ( Dmd , Dysf , Capn3 , Large ) lead to ... | All kinds of muscular dystrophies ( MDs ) are characterized by progressive muscle wasting due to life-long proliferation of precursor cells of myo- ( muscle ) , fibro- ( connective tissue ) , and lipogenic ( fat ) origin . Despite discovery of many MD genes over the past 25 years , MDs still represent debilitating , in... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"animal",
"genetics",
"cancer",
"genetics",
"genetic",
"mutation",
"duchenne",
"muscular",
"dystrophy",
"cytogenetic",
"analysis",
"animal",
"models",
"genetics",
"of",
"disease",
"model",
"organisms",
"biology",
"mouse",
"x-linked",
"congenital",
"hereditary",
"myopath... | 2011 | DNA Damage, Somatic Aneuploidy, and Malignant Sarcoma Susceptibility in Muscular Dystrophies |
Insulin-like growth factor I receptor ( Igf1r ) signaling controls proliferation , differentiation , growth , and cell survival in many tissues; and its deregulated activity is involved in tumorigenesis . Although important during fetal growth and postnatal life , a function for the Igf pathway during preimplantation d... | One of the most important steps during mammalian development is the formation of a blastocyst before implantation . Proper blastocyst development is fundamentally reliant on the function of the E-cadherin adhesion molecule , which cannot be replaced by another highly related member of the cadherin family . We have addr... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"genetic",
"mutation",
"mechanisms",
"of",
"signal",
"transduction",
"animal",
"models",
"developmental",
"biology",
"model",
"organisms",
"molecular",
"development",
"signaling",
"pathways",
"signaling",
"in",
"cellular",
"processes",
"biology",
"molecular",
"biology",
... | 2012 | Igf1r Signaling Is Indispensable for Preimplantation Development and Is Activated via a Novel Function of E-cadherin |
Could some vaccines drive the evolution of more virulent pathogens ? Conventional wisdom is that natural selection will remove highly lethal pathogens if host death greatly reduces transmission . Vaccines that keep hosts alive but still allow transmission could thus allow very virulent strains to circulate in a populat... | There is a theoretical expectation that some types of vaccines could prompt the evolution of more virulent ( “hotter” ) pathogens . This idea follows from the notion that natural selection removes pathogen strains that are so “hot” that they kill their hosts and , therefore , themselves . Vaccines that let the hosts su... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Imperfect Vaccination Can Enhance the Transmission of Highly Virulent Pathogens |
Dengue is the most widespread vector-borne viral disease caused by dengue virus ( DENV ) for which there are no safe , effective drugs approved for clinical use . Here , by using sequential antigen panning of a yeast antibody library derived from healthy donors against the DENV envelop protein domain III ( DIII ) combi... | Dengue virus infects 50–100 million people each year . Infection is initiated by entry of the virus into cells mediated by the viral envelope glycoproteins . There are four closely related DENV serotypes , but they all are antigenically distinct , with each comprising several genotypes that exhibit differences in their... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"dengue",
"virus",
"medicine",
"and",
"health",
"sciences",
"immune",
"physiology",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"animal",
"models",
"of",
"disease",
"immunology",
"microbiology",
"viruses",
"animal",
"models",
"vaccines",
"preventive",
"... | 2019 | A broadly neutralizing germline-like human monoclonal antibody against dengue virus envelope domain III |
TNF expression of macrophages is under stringent translational control that depends on the p38 MAPK/MK2 pathway and the AU–rich element ( ARE ) in the TNF mRNA . Here , we elucidate the molecular mechanism of phosphorylation-regulated translation of TNF . We demonstrate that translation of the TNF-precursor at the ER r... | For immediate response and better control of gene expression , eukaryotic cells have developed means to specifically regulate the stability and translation of pre-formed mRNA transcripts . This post-transcriptional regulation of gene expression is realized by a variety of mRNA-binding proteins , which target specific m... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Experimental",
"Procedures"
] | [
"signal",
"transduction",
"inflammation",
"molecular",
"cell",
"biology",
"immunity",
"protein",
"translation",
"gene",
"expression",
"molecular",
"biology",
"immunology",
"biology",
"mapk",
"signaling",
"cascades",
"rna",
"stability",
"signaling",
"cascades"
] | 2012 | The p38/MK2-Driven Exchange between Tristetraprolin and HuR Regulates AU–Rich Element–Dependent Translation |
Sporulation in the bacterium Bacillus subtilis is a developmental program in which a progenitor cell differentiates into two different cell types , the smaller of which eventually becomes a dormant cell called a spore . The process begins with an asymmetric cell division event , followed by the activation of a transcri... | A central feature of developmental programs is the establishment of asymmetry and the production of genetically identical daughter cells that display different cell fates . Sporulation in the bacterium Bacillus subtilis is a simple developmental program in which the cell divides asymmetrically to produce two daughter c... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"cell",
"biology",
"biology",
"and",
"life",
"sciences",
"developmental",
"biology",
"microbiology"
] | 2014 | Asymmetric Division and Differential Gene Expression during a Bacterial Developmental Program Requires DivIVA |
We most often consider muscle as a motor generating force in the direction of shortening , but less often consider its roles as a spring or a brake . Here we develop a fully three-dimensional spatially explicit model of muscle to isolate the locations of forces and energies that are difficult to separate experimentally... | Locomotion requires energy . Very fast locomotion requires a larger amount of energy than muscle can produce in such a short time period , thus muscle must use energy that it previously produced and stored as elastic deformation . Cyclical or repeated movements can be directly powered by muscle , but energy may be cons... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"musculoskeletal",
"system",
"biophysic",
"al",
"simulations",
"physiology",
"muscle",
"functions",
"biology",
"anatomy",
"and",
"physiology",
"computational",
"biology",
"biophysics",
"biomechanics",
"muscle"
] | 2012 | Elastic Energy Storage and Radial Forces in the Myofilament Lattice Depend on Sarcomere Length |
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