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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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Down syndrome ( DS ) , with trisomy of chromosome 21 ( HSA21 ) , is the commonest human aneuploidy . Pre-leukemic myeloproliferative changes in DS foetal livers precede the acquisition of GATA1 mutations , transient myeloproliferative disorder ( DS-TMD ) and acute megakaryocytic leukemia ( DS-AMKL ) . Trisomy of the Er... | An excess number of genes in trisomy on human chromosome 21 leads to the development of specific diseases in human Down syndrome . An excess copy of the gene , ERG , an ETS family transcription factor , has been implicated in abnormal blood system development in Down syndrome . In this study we show how trisomy of Erg ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Early Lineage Priming by Trisomy of Erg Leads to Myeloproliferation in a Down Syndrome Model |
Semen is a major vector for HIV transmission , but the semen HIV RNA viral load ( VL ) only correlates moderately with the blood VL . Viral shedding can be enhanced by genital infections and associated inflammation , but it can also occur in the absence of classical pathogens . Thus , we hypothesized that a dysregulate... | The classical paradigm of HIV infectivity centers on the blood HIV RNA viral load . However , while other fluid compartments such as semen and cerebrospinal fluid can have distinct viral loads from blood , the causes of localized HIV shedding are not fully understood . Since the semen viral load is an independent predi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"urology",
"medicine",
"and",
"health",
"sciences",
"pathology",
"and",
"laboratory",
"medicine",
"immunology",
"microbiology",
"immunodeficiency",
"viruses",
"urologic",
"infections",
"infectious",
"diseases",
"medical",
"microbiology",
"hiv",
"microbial",
"pathogens",
"... | 2014 | The Semen Microbiome and Its Relationship with Local Immunology and Viral Load in HIV Infection |
Lymphatic filariasis ( LF ) and podoconiosis are neglected tropical diseases ( NTDs ) that pose a significant physical , social and economic burden to endemic communities . Patients affected by the clinical conditions of LF ( lymphoedema and hydrocoele ) and podoconiosis ( lymphoedema ) need access to morbidity managem... | Patients affected by the clinical conditions of lymphatic filariasis ( lymphoedema and hydrocoele ) and podoconiosis ( lymphoedema ) require access to a minimum package of care to prevent progression of the disease , and to improve their quality of life . Clear estimates of the number and location of these patients is ... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"legs",
"tropical",
"diseases",
"geographical",
"locations",
"limbs",
"(anatomy)",
"parasitic",
"diseases",
"health",
"care",
"ethnicities",
"age",
"groups",
"neglected",
"tropical",
"diseases",
"ethiopia",
"supervisors",
"africa... | 2018 | Integrated morbidity mapping of lymphatic filariasis and podoconiosis cases in 20 co-endemic districts of Ethiopia |
We employ a biophysical model that accounts for the non-linear relationship between binding energy and the statistics of selected binding sites . The model includes the chemical potential of the transcription factor , non-specific binding affinity of the protein for DNA , as well as sequence-specific parameters that ma... | The DNA binding sites of transcription factors that control gene expression are often predicted based on a collection of known or selected binding sites . The most commonly used methods for inferring the binding site pattern , or sequence motif , assume that the sites are selected in proportion to their affinity for th... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"biophysics/biomacromolecule-ligand",
"interactions",
"computational",
"biology/sequence",
"motif",
"analysis",
"computational",
"biology/transcriptional",
"regulation"
] | 2009 | Inferring Binding Energies from Selected Binding Sites |
A recent paper by Karin et al . introduced a mathematical notion called dynamical compensation ( DC ) of biological circuits . DC was shown to play an important role in glucose homeostasis as well as other key physiological regulatory mechanisms . Karin et al . went on to provide a sufficient condition to test whether ... | A recently introduced mathematical notion called dynamical compensation of biological circuits was shown to play an important role in glucose homeostasis and other key physiological regulatory mechanisms . This paper explains how dynamical compensation can be formulated in terms of a well-known concept in systems biolo... | [
"Abstract",
"Introduction",
"Results",
"Examples",
"from",
"the",
"paper",
"[",
"Discussion",
"Methods"
] | [
"control",
"theory",
"chemical",
"compounds",
"engineering",
"and",
"technology",
"integrative",
"physiology",
"carbohydrates",
"organic",
"compounds",
"glucose",
"control",
"engineering",
"systems",
"science",
"mathematics",
"algebra",
"polynomials",
"computer",
"and",
"... | 2017 | Dynamic compensation, parameter identifiability, and equivariances |
Circulating levels of adiponectin , a hormone produced predominantly by adipocytes , are highly heritable and are inversely associated with type 2 diabetes mellitus ( T2D ) and other metabolic traits . We conducted a meta-analysis of genome-wide association studies in 39 , 883 individuals of European ancestry to identi... | Serum adiponectin levels are highly heritable and are inversely correlated with the risk of type 2 diabetes ( T2D ) , coronary artery disease , stroke , and several metabolic traits . To identify common genetic variants associated with adiponectin levels and risk of T2D and metabolic traits , we conducted a meta-analys... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"medicine",
"clinical",
"research",
"design",
"genetics",
"molecular",
"genetics",
"biology",
"human",
"genetics",
"genetics",
"and",
"genomics"
] | 2012 | Novel Loci for Adiponectin Levels and Their Influence on Type 2 Diabetes and Metabolic Traits: A Multi-Ethnic Meta-Analysis of 45,891 Individuals |
Kaposi’s sarcoma-associated herpesvirus ( KSHV ) is the etiologic agent of three human malignancies , the endothelial cell cancer Kaposi’s sarcoma , and two B cell cancers , Primary Effusion Lymphoma and multicentric Castleman’s disease . KSHV has latent and lytic phases of the viral life cycle , and while both contrib... | Kaposi’s sarcoma-associated herpesvirus ( KSHV ) is the causative agent of three human malignancies . KSHV establishes latent infection but can be reactivated from latency to the lytic phase of the viral life cycle to propagate . KSHV reactivation from latency is controlled by epigenetic changes at the promoter of the ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"vero",
"cells",
"medicine",
"and",
"health",
"sciences",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"biological",
"cultures",
"dna-binding",
"proteins",
"microbiology",
"viruses",
"dna",
"viruses",
"epigenetics",
"herpesviruses",
"chromatin",
"research",
... | 2018 | Chromatin remodeling controls Kaposi's sarcoma-associated herpesvirus reactivation from latency |
Genetic variation at the Human Leucocyte Antigen ( HLA ) genes is associated with many autoimmune and infectious disease phenotypes , is an important element of the immunological distinction between self and non-self , and shapes immune epitope repertoires . Determining the allelic state of the HLA genes ( HLA typing )... | Determining an individual’s HLA type ( the sequence of the exons of the HLA genes ) is important in many areas of biomedical research . For example , HLA types shape immune epitope repertoires , which are relevant in cancer immunotherapy , and influence autoimmune and infectious disease risk . Whole-genome sequencing d... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"sequencing",
"techniques",
"infographics",
"split-decomposition",
"method",
"population",
"genetics",
"computational",
"biology",
"alleles",
"multiple",
"alignment",
"calculation",
"platinum",
"genome",
"analysis",
"molecular",
"biology",
"techniques",
"population",
"biology... | 2016 | High-Accuracy HLA Type Inference from Whole-Genome Sequencing Data Using Population Reference Graphs |
The persistence of a reservoir of latently infected CD4 T cells remains one of the major obstacles to cure HIV . Numerous strategies are being explored to eliminate this reservoir . To translate these efforts into clinical trials , there is a strong need for validated biomarkers that can monitor the reservoir over time... | Current HIV-1 research aims to find a cure for HIV-1 , either by pursuing viral eradication or by attempting to attain an immune-mediated functional cure . For the purpose of interpreting the findings of these eradication strategies , a validated representative biomarker of the replication-competent latent HIV-1 reserv... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"blood",
"cells",
"medicine",
"and",
"health",
"sciences",
"immune",
"cells",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"biological",
"cultures",
"immunology",
"microbiology",
"retroviruses",
"viruses",
"immunodeficiency",
"viruses",
"rna",
"viruses",
"... | 2016 | Integrated and Total HIV-1 DNA Predict Ex Vivo Viral Outgrowth |
Rhythmical activity patterns are ubiquitous in nature . We study an oscillatory biological system: collective activity cycles in ant colonies . Ant colonies have become model systems for research on biological networks because the interactions between the component parts are visible to the naked eye , and because the t... | Many complex biological systems , from cardiac tissues to entire animal populations , exhibit rhythmical oscillations . Here we studied a textbook example of a complex living system–colonies of Leptothorax ants , which exhibit short ( 15 minute ) collective activity cycles . In ant colonies , information , food , and c... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"invertebrates",
"medicine",
"and",
"health",
"sciences",
"pathology",
"and",
"laboratory",
"medicine",
"infectious",
"disease",
"epidemiology",
"pathogens",
"sociology",
"signaling",
"networks",
"social",
"sciences",
"animals",
"circadian",
"oscillators",
"simulation",
"... | 2017 | Short-term activity cycles impede information transmission in ant colonies |
Osteogenesis imperfecta ( OI ) is a hereditary disease occurring in humans and dogs . It is characterized by extremely fragile bones and teeth . Most human and some canine OI cases are caused by mutations in the COL1A1 and COL1A2 genes encoding the subunits of collagen I . Recently , mutations in the CRTAP and LEPRE1 g... | Osteogenesis imperfecta ( OI ) is a genetic condition of humans and dogs characterized by extremely fragile bones and teeth . Most human OI cases are caused by defects in one of two collagen genes . Mutations in two other genes related to collagen maturation can also lead to OI in some patients . We studied Dachshunds ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"genetics",
"and",
"genomics/animal",
"genetics",
"genetics",
"and",
"genomics/disease",
"models",
"genetics",
"and",
"genomics/genetics",
"of",
"disease",
"genetics",
"and",
"genomics",
"genetics",
"and",
"genomics/medical",
"genetics"
] | 2009 | A Missense Mutation in the SERPINH1 Gene in Dachshunds with Osteogenesis Imperfecta |
Kaposi's sarcoma ( KS ) is a highly disseminated angiogenic tumor of endothelial cells linked to infection by Kaposi's sarcoma-associated herpesvirus ( KSHV ) . KSHV encodes more than two dozens of miRNAs but their roles in KSHV-induced tumor dissemination and metastasis remain unknown . Here , we found that ectopic ex... | Kaposi's sarcoma-associated herpesvirus ( KSHV ) is the etiological agent of Kaposi's sarcoma ( KS ) . KS is a highly disseminated tumor often involved with visceral organs . Experimentally , KSHV infection induces the invasiveness of endothelial cells . KSHV encodes twelve precursor miRNAs ( pre-miRNAs ) , which are p... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | A KSHV microRNA Directly Targets G Protein-Coupled Receptor Kinase 2 to Promote the Migration and Invasion of Endothelial Cells by Inducing CXCR2 and Activating AKT Signaling |
CD4+ T cells are essential for the control of Yersinia enterocolitica ( Ye ) infection in mice . Ye can inhibit dendritic cell ( DC ) antigen uptake and degradation , maturation and subsequently T-cell activation in vitro . Here we investigated the effects of Ye infection on splenic DCs and T-cell proliferation in an e... | Dendritic cells ( DCs ) are crucial in promoting immune responses against pathogens . Mouse DCs consist of different subpopulations but their role in immunity to pathogens and immune evasion is largely unclear . The enteric pathogen Yersinia enterocolitica ( Ye ) was shown to evade DC functions in bone marrow-derived D... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"immunology/cellular",
"microbiology",
"and",
"pathogenesis",
"immunology/antigen",
"processing",
"and",
"recognition",
"immunology/leukocyte",
"development",
"cell",
"biology/cell",
"signaling",
"immunology/immunomodulation",
"immunology/immune",
"response",
"immunology/innate",
"... | 2010 | Immune Evasion by Yersinia enterocolitica: Differential Targeting of Dendritic Cell Subpopulations In Vivo |
Equine arteritis virus ( EAV ) has the unique ability to establish long-term persistent infection in the reproductive tract of stallions and be sexually transmitted . Previous studies showed that long-term persistent infection is associated with a specific allele of the CXCL16 gene ( CXCL16S ) and that persistence is m... | A distinctive feature of equine arteritis virus ( EAV ) is its ability to establish long-term persistent infection in the stallion reproductive tract in the presence of strong immune and inflammatory responses . The data presented herein provides insight into the molecular signature of the inflammatory response during ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"blood",
"cells",
"cell",
"motility",
"medicine",
"and",
"health",
"sciences",
"immune",
"cells",
"pathology",
"and",
"laboratory",
"medicine",
"gene",
"regulation",
"regulatory",
"proteins",
"immunology",
"dna-binding",
"proteins",
"microbiology",
"signs",
"and",
"sy... | 2019 | Equine arteritis virus long-term persistence is orchestrated by CD8+ T lymphocyte transcription factors, inhibitory receptors, and the CXCL16/CXCR6 axis |
Poverty has long been considered a risk factor for leprosy and is related to nutritional deficiencies . In this study , we aim to investigate the association between poverty-related diet and nutrition with leprosy . In rural leprosy-endemic areas in Indonesia , we conducted a household-based case-control study using tw... | Despite the suggestion that nutritional deficiencies may impair host immune responses against Mycobacterium leprae , there has not been any systematic study on how various aspects of poverty interact and associate with nutrition and leprosy . In poor rural areas in Indonesia that have the highest proportion of multibac... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"tropical",
"diseases",
"diet",
"anemia",
"health",
"care",
"bacterial",
"diseases",
"physiological",
"processes",
"nutrition",
"neglected",
"tropical",
"diseases",
"public",
"and",
"occupational",
"health",
"infectious",
"diseas... | 2018 | Dietary diversity and poverty as risk factors for leprosy in Indonesia: A case-control study |
Recurrent connections play an important role in cortical function , yet their exact contribution to the network computation remains unknown . The principles guiding the long-term evolution of these connections are poorly understood as well . Therefore , gaining insight into their computational role and into the mechani... | The recurrent interactions among cortical neurons shape the representation of incoming information but the principles governing their evolution are yet unclear . We investigate the computational role of recurrent connections in the context of sensory processing . Specifically , we study a neuronal network model in whic... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"learning",
"medicine",
"and",
"health",
"sciences",
"neural",
"networks",
"brain",
"social",
"sciences",
"neuroscience",
"learning",
"and",
"memory",
"cognitive",
"psychology",
"network",
"analysis",
"hallucinations",
"vision",
"neuronal",
"tuning",
"computer",
"and",
... | 2016 | Optimal Information Representation and Criticality in an Adaptive Sensory Recurrent Neuronal Network |
In vertebrates , left-right ( LR ) axis specification is determined by a ciliated structure in the posterior region of the embryo . Fluid flow in this ciliated structure is responsible for the induction of unilateral left-sided Nodal activity in the lateral plate mesoderm , which in turn regulates organ laterality . Bm... | Although vertebrates are bilaterally symmetric when observed from the outside , inside the body cavity the organs are positioned asymmetrically with respect to the left and right sides . Cases where all the organs are mirror imaged , known as situs inversus , are not associated with any medical defects . Severe medical... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"medicine",
"developmental",
"biology",
"model",
"organisms",
"genetics",
"biology",
"genetics",
"and",
"genomics",
"cardiovascular"
] | 2011 | Bmp and Nodal Independently Regulate lefty1 Expression to Maintain Unilateral Nodal Activity during Left-Right Axis Specification in Zebrafish |
Leprosy is a disease of skin and peripheral nerves . The process of nerve injury occurs gradually through the course of the disease as well as acutely in association with reactions . The INFIR ( ILEP Nerve Function Impairment and Reactions ) Cohort was established to identify clinically relevant neurological and immuno... | Leprosy is a disease of skin and peripheral nerves . The skin changes aid early detection and diagnosis , while the nerve damage leads to progressive impairment and disability . The aim of this study was to identify new risk factors at diagnosis and during follow-up that would predict which patients would develop nerve... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"immunology/immunity",
"to",
"infections",
"neurological",
"disorders"
] | 2009 | Predicting Neuropathy and Reactions in Leprosy at Diagnosis and Before Incident Events—Results from the INFIR Cohort Study |
Podoconiosis , affects lower limb , is an entirely preventable non-communicable tropical disease common in low income countries . Globally it is estimated that there are 4 million peoples with podoconiosis and nationally it is estimated that there are 1 . 56 million cases of podoconiosis . Even though nationwide mappin... | Podoconiosis ( endemic non-filarial elephantiasis ) is one of a disabling and stigmatizing neglected tropical disease ( NTD ) which affects the lower limb found mostly in low income countries . Even though there were mostly prevalence studies and disease mapping , there was no report , especially on factors associated ... | [
"Abstract",
"Introduction",
"Methods",
"and",
"materials",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"legs",
"feet",
"pathology",
"and",
"laboratory",
"medicine",
"tropical",
"diseases",
"geographical",
"locations",
"parasitic",
"diseases",
"filariasis",
"signs",
"and",
"symptoms",
"neglected",
"tropical",
"diseases",
"ethiopia"... | 2019 | Community based cross sectional study of podoconiosis and associated factors in Dano district, Central Ethiopia |
Epstein-Barr virus ( EBV ) infection causes B cell lymphomas in humanized mouse models and contributes to a variety of different types of human lymphomas . T cells directed against viral antigens play a critical role in controlling EBV infection , and EBV-positive lymphomas are particularly common in immunocompromised ... | EBV is a human herpesvirus that remains in the host for life , but is normally well controlled by the host immune response . Nevertheless , EBV causes lymphomas in certain individuals , particularly when T cell function is impaired . Antibodies against two different inhibitory receptors on T cells , PD-1 and CTLA-4 , h... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"blood",
"cells",
"medicine",
"and",
"health",
"sciences",
"immune",
"cells",
"body",
"fluids",
"cancer",
"treatment",
"immunology",
"cancers",
"and",
"neoplasms",
"oncology",
"hematologic",
"cancers",
"and",
"related",
"disorders",
"animal",
"models",
"model",
"org... | 2016 | PD-1/CTLA-4 Blockade Inhibits Epstein-Barr Virus-Induced Lymphoma Growth in a Cord Blood Humanized-Mouse Model |
Virulent Agrobacterium tumefaciens strains integrate their T-DNA into the plant genome where the encoded agrobacterial oncogenes are expressed and cause crown gall disease . Essential for crown gall development are IaaH ( indole-3-acetamide hydrolase ) , IaaM ( tryptophan monooxygenase ) and Ipt ( isopentenyl transfera... | Crown gall development requires the expression of agrobacterial genes in the plant host . These genes are transferred by the T-DNA of the plant pathogen Agrobacterium tumefaciens and include the oncogenes IaaH , IaaM and Ipt , which , according to the tumor-inducing principle , are essential for crown gall development ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Regulation of Oncogene Expression in T-DNA-Transformed Host Plant Cells |
Entamoeba histolytica is an intestinal protozoan parasite that causes amoebiasis , including amebic dysentery and liver abscesses . E . histolytica invades host tissues by adhering onto cells and phagocytosing them depending on the adaptation and expression of pathogenic factors , including Gal/GalNAc lectin . We have ... | Amebiasis , a neglected tropical disease caused by the protozoan parasite Entamoeba histolytica , is the second leading cause of death from protozoan diseases . Vaccination is considered as an effective strategy against amebiasis; however , clinical vaccines have yet to be developed . We previously reported that the in... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"trophozoites",
"parasite",
"groups",
"medicine",
"and",
"health",
"sciences",
"innate",
"immune",
"system",
"immune",
"physiology",
"cytokines",
"enzyme-linked",
"immunoassays",
"complement",
"system",
"spleen",
"immunology",
"vertebrates",
"animals",
"mammals",
"parasit... | 2016 | Evaluation of the C-Terminal Fragment of Entamoeba histolytica Gal/GalNAc Lectin Intermediate Subunit as a Vaccine Candidate against Amebic Liver Abscess |
Cell death plays a major role during C . elegans oogenesis , where over half of the oogenic germ cells die in a process termed physiological apoptosis . How germ cells are selected for physiological apoptosis , or instead become oocytes , is not understood . Most oocytes produce viable embryos when apoptosis is blocked... | Many germ cells die by apoptosis during the development of animal oocytes , including more than half of all germ cells in the model system C . elegans . How individual germ cells are selected for apoptosis , or survival , is not known . Here we study the cell biology of apoptosis . The C . elegans gonad is a syncytium ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"cell",
"death",
"invertebrates",
"medicine",
"and",
"health",
"sciences",
"reproductive",
"system",
"gonads",
"caenorhabditis",
"cell",
"processes",
"animals",
"germ",
"cells",
"animal",
"models",
"caenorhabditis",
"elegans",
"oocytes",
"model",
"organisms",
"experimen... | 2018 | Binucleate germ cells in Caenorhabditis elegans are removed by physiological apoptosis |
In numerous species , the formation of meiotic crossovers is largely under the control of a group of proteins known as ZMM . Here , we identified a new ZMM protein , HEI10 , a RING finger-containing protein that is well conserved among species . We show that HEI10 is structurally and functionally related to the yeast Z... | During meiosis two successive chromosomal divisions follow a single S phase , resulting in the formation of four haploid cells , each with half of the parental genetic material . This ploidy reduction occurs during the first meiotic division , when homologous chromosomes ( paternal and maternal ) are separated from eac... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"meiosis",
"molecular",
"cell",
"biology",
"cell",
"biology",
"chromosome",
"biology",
"genetics",
"plant",
"genetics",
"biology",
"genetics",
"and",
"genomics",
"gene",
"function"
] | 2012 | The Arabidopsis HEI10 Is a New ZMM Protein Related to Zip3 |
The extent to which an emerging new function trades off with the original function is a key characteristic of the dynamics of enzyme evolution . Various cases of laboratory evolution have unveiled a characteristic trend; a large increase in a new , promiscuous activity is often accompanied by only a mild reduction of t... | Understanding how enzymes evolve is a fundamental question that can help us decipher not only the mechanisms of evolution on a higher level , i . e . , whole organisms , but also advances our knowledge of sequence-structure-function relationships as a guide to artificial evolution in the test tube . An important yet un... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"deletion",
"mutation",
"enzymes",
"enzymology",
"epistasis",
"mutation",
"substitution",
"mutation",
"proteins",
"molecular",
"evolution",
"chemistry",
"evolutionary",
"genetics",
"biochemistry",
"point",
"mutation",
"hydrolysis",
"heredity",
"genetics",
"biology",
"and",
... | 2016 | Functional Trade-Offs in Promiscuous Enzymes Cannot Be Explained by Intrinsic Mutational Robustness of the Native Activity |
Post-transcriptional control is nowadays considered a main checking point for correct gene regulation during development , and RNA binding proteins actively participate in this process . Arabidopsis thaliana FLOWERING LOCUS WITH KH DOMAINS ( FLK ) and PEPPER ( PEP ) genes encode RNA-binding proteins that contain three ... | Unlike animals , angiosperms ( flowering plants ) lack a germline that is set-aside early in embryo development . Contrariwise , reproductive success relies on the formation of flowers during adult life , which provide the germ cells and the means for fertilization . Therefore , timing of flowering and flower organ mor... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | K-homology Nuclear Ribonucleoproteins Regulate Floral Organ Identity and Determinacy in Arabidopsis |
Kaposi's sarcoma herpesvirus ( KSHV ) encodes a cluster of twelve micro ( mi ) RNAs , which are abundantly expressed during both latent and lytic infection . Previous studies reported that KSHV is able to inhibit apoptosis during latent infection; we thus tested the involvement of viral miRNAs in this process . We foun... | MiRNAs are small , non-coding RNAs that regulate gene expression post-transcriptionally via binding to complementary sites in target mRNAs . This evolutionary conserved regulatory system is present in most eukaryotes , and it has recently been shown that certain viruses have evolved to express their own miRNAs . Due to... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Material",
"and",
"Methods"
] | [
"cell",
"death",
"rna",
"interference",
"viruses",
"and",
"cancer",
"microbiology",
"host-pathogen",
"interaction",
"gene",
"expression",
"biology",
"molecular",
"biology",
"rna",
"cell",
"biology",
"nucleic",
"acids",
"virology",
"molecular",
"cell",
"biology"
] | 2011 | Kaposi's Sarcoma Herpesvirus microRNAs Target Caspase 3 and Regulate Apoptosis |
Of the over 250 Aspergillus species , Aspergillus fumigatus accounts for up to 80% of invasive human infections . A . fumigatus produces galactosaminogalactan ( GAG ) , an exopolysaccharide composed of galactose and N-acetyl-galactosamine ( GalNAc ) that mediates adherence and is required for full virulence . Less path... | The ubiquitous mold A . fumigatus is isolated in over 80% of all patients with invasive aspergillosis ( IA ) . A . nidulans is a relatively non-pathogenic species that rarely causes IA except in patients with chronic granulomatous disease ( CGD ) , a hereditary disease characterized by impaired neutrophil function due ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | The Fungal Exopolysaccharide Galactosaminogalactan Mediates Virulence by Enhancing Resistance to Neutrophil Extracellular Traps |
West Nile virus ( WNV ) is transmitted to vertebrate hosts by mosquitoes as they take a blood meal . The amount of WNV inoculated by mosquitoes as they feed on a live host is not known . Previous estimates of the amount of WNV inoculated by mosquitoes ( 101 . 2–104 . 3 PFU ) were based on in vitro assays that do not al... | Since it was first introduced into the United States in 1999 , West Nile virus ( WNV ) has caused significant disease in humans , horses , and other animals . WNV is transmitted to humans and other vertebrate hosts by female mosquitoes as they take a blood meal . Currently , the amount of virus inoculated by mosquitoes... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"viruses",
"infectious",
"diseases",
"public",
"health",
"and",
"epidemiology",
"virology",
"mus",
"(mouse)",
"insects"
] | 2007 | Mosquitoes Inoculate High Doses of West Nile Virus as They Probe and Feed on Live Hosts |
An estimated 60 , 000 people die of rabies annually . The vast majority of cases of human rabies develop following a bite from an infected dog . Rabies can be controlled in both human and canine populations through widespread vaccination of dogs . Rabies is particularly problematic in Malawi , costing the country an es... | Rabies is a devastating disease that is estimated to result in the death of approximately 60 , 000 people every year . Most humans contract rabies following a bite from an infected dog and it has been demonstrated that provided a large enough proportion of the dog population is vaccinated; rabies incidence can be marke... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"engineering",
"and",
"technology",
"immunology",
"tropical",
"diseases",
"geographical",
"locations",
"vertebrates",
"social",
"sciences",
"malawi",
"dogs",
"animals",
"mammals",
"cell",
"phones",
"vaccines",
"preventive",
"medi... | 2016 | The Vaccination of 35,000 Dogs in 20 Working Days Using Combined Static Point and Door-to-Door Methods in Blantyre, Malawi |
Cholera infection continues to be a threat to global public health . The current cholera pandemic associated with Vibrio cholerae El Tor has now been ongoing for over half a century . Thirty-eight V . cholerae El Tor isolates associated with a cholera outbreak in 2009 from the Chandigarh region of India were characteri... | Vibrio cholerae is a diarrheal pathogen that is responsible for substantial morbidity and mortality worldwide . Historically , seven pandemics of cholera have been recognized , with classical biotype strains associated with the sixth and the El Tor biotype with the seventh ( current ) pandemic . Recently multi-drug res... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"genetics",
"biology",
"and",
"life",
"sciences",
"comparative",
"genomics",
"genomics",
"computational",
"biology"
] | 2014 | The Population Structure of Vibrio cholerae from the Chandigarh Region of Northern India |
Chronic infections with human viruses , such as HIV and HCV , or mouse viruses , such as LCMV or Friend Virus ( FV ) , result in functional exhaustion of CD8+ T cells . Two main mechanisms have been described that mediate this exhaustion: expression of inhibitory receptors on CD8+ T cells and expansion of regulatory T ... | A loss of function , the so-called ‘exhaustion’ of CD8+ T cells , is a hallmark of many chronic infections . The T cell exhaustion is mediated by two main mechanisms , the expression of inhibitory receptors on CD8+ T cells and virus-induced expansion of regulatory T cells ( Tregs ) , which suppress CD8+ T cell activity... | [
"Abstract",
"Introduction",
"Results",
"and",
"Discussion",
"Methods"
] | [] | 2013 | Combining Regulatory T Cell Depletion and Inhibitory Receptor Blockade Improves Reactivation of Exhausted Virus-Specific CD8+ T Cells and Efficiently Reduces Chronic Retroviral Loads |
At least 25 inherited disorders in humans result from microsatellite repeat expansion . Dramatic variation in repeat instability occurs at different disease loci and between different tissues; however , cis-elements and trans-factors regulating the instability process remain undefined . Genomic fragments from the human... | The human genome contains many repetitive sequences . In 1991 , we discovered that excessive lengthening of a three-nucleotide ( trinucleotide ) repeat sequence could cause a human genetic disease . We now know that this unique type of genetic mutation , known as a “repeat expansion , ” occurs in at least 25 different ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"genetics",
"and",
"genomics/disease",
"models",
"genetics",
"and",
"genomics/epigenetics",
"neurological",
"disorders/neurogenetics",
"genetics",
"and",
"genomics/medical",
"genetics"
] | 2008 | CTCF cis-Regulates Trinucleotide Repeat Instability in an Epigenetic Manner: A Novel Basis for Mutational Hot Spot Determination |
Standard treatment of cutaneous leishmaniasis ( CL ) in Suriname entails three injections of pentamidine isethionate ( PI ) 4 mg/kg per injection in 7 days ( 7 day regimen ) . Compliance to treatment is low and may contribute to increasing therapy failure . A 3 day regimen , including 2 injections of 7 mg/kg in 3 days ... | Cutaneous Leishmaniasis ( CL ) , caused by the single cellular protozoan parasite of the genus Leishmania , is treated in Suriname with pentamidine isethionate ( PI ) . Standard treatment consists of 3 intramuscular injections of 4 mg per kg bodyweight given in 7 days . Compliance to treatment is low which may lead to ... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [] | 2015 | Randomized Single-Blinded Non-inferiority Trial Of 7 mg/kg Pentamidine Isethionate Versus 4 mg/kg Pentamidine Isethionate for Cutaneous Leishmaniaisis in Suriname |
Cell division in Escherichia coli starts with assembly of FtsZ protofilaments into a ring-like structure , the Z-ring . Positioning of the Z-ring at midcell is thought to be coordinated by two regulatory systems , nucleoid occlusion and the Min system . In E . coli , nucleoid occlusion is mediated by the SlmA proteins ... | Cell division in Escherichia coli begins with the assembly of FtsZ proteins into a ring-like structure , the Z-ring . Remarkably , the Z-ring localizes with very high precision at midcell . Currently , two molecular systems , nucleoid occlusion and the Min system , are known to localize the Z-ring . Here , we explore w... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"molecular",
"complexes",
"cell",
"cycle",
"and",
"cell",
"division",
"cell",
"processes",
"microbiology",
"escherichia",
"coli",
"prokaryotic",
"models",
"model",
"organisms",
"cytokinesis",
"bacterial",
"pathogens",
"research",
"and",
"analysis",
"methods",
"medical",... | 2014 | Evidence for Divisome Localization Mechanisms Independent of the Min System and SlmA in Escherichia coli |
The global burden of HIV-associated cryptococcal meningitis is estimated at nearly one million cases per year , causing up to a third of all AIDS-related deaths . Molecular epidemiology constitutes the main methodology for understanding the factors underpinning the emergence of this understudied , yet increasingly impo... | Cryptococcus neoformans is a species complex of often highly pathogenic fungi that cause significant disease in humans . Cryptococcus is notable in the degree that virulence differs amongst genotypes , and highly-virulent emerging lineages are changing patterns of disease in time and space . Cryptococcus neoformans var... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"evolutionary",
"biology",
"molecular",
"biology",
"infectious",
"diseases/epidemiology",
"and",
"control",
"of",
"infectious",
"diseases",
"genetics",
"and",
"genomics/population",
"genetics"
] | 2011 | Low Diversity Cryptococcus neoformans Variety grubii Multilocus Sequence Types from Thailand Are Consistent with an Ancestral African Origin |
It is now clearly established that the transfusion of blood from variant CJD ( v-CJD ) infected individuals can transmit the disease . Since the number of asymptomatic infected donors remains unresolved , inter-individual v-CJD transmission through blood and blood derived products is a major public health concern . Cur... | In the UK , several v-CJD cases have been identified in patients that received blood or blood-derived products prepared from incubating asymptomatic donors . Since there is no screening test to identify infected donors , procedural risk reduction measures remain the only protection against v-CJD transfusion risk . Thes... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"infectious",
"diseases",
"prion",
"diseases"
] | 2012 | Highly Efficient Prion Transmission by Blood Transfusion |
A five-year citywide control program based on regular application of temephos significantly reduced Aedes aegypti larval indices but failed to maintain them below target levels in Clorinda , northern Argentina . Incomplete surveillance coverage and reduced residuality of temephos were held as the main putative causes l... | Dengue is currently the most important viral disease of humans transmitted by arthropods worldwide . Aedes aegypti , a human-biting mosquito dwelling in artificial domestic containers , is the main vector of dengue . Ae . aegypti larval control programs are frequently based on the application of the insecticide temepho... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [
"infectious",
"diseases/neglected",
"tropical",
"diseases",
"public",
"health",
"and",
"epidemiology/epidemiology",
"infectious",
"diseases/viral",
"infections",
"public",
"health",
"and",
"epidemiology/infectious",
"diseases",
"public",
"health",
"and",
"epidemiology/social",
... | 2011 | Water Use Practices Limit the Effectiveness of a Temephos-Based Aedes aegypti Larval Control Program in Northern Argentina |
Until recently , the Chagas disease vector , Triatoma infestans , was widespread in Arequipa , Perú , but as a result of a decades-long campaign in which over 70 , 000 houses were treated with insecticides , infestation prevalence is now greatly reduced . To monitor for T . infestans resurgence , the city is currently ... | Chagas disease is a serious infection that is spread by blood-sucking insects called ‘kissing bugs . ’ These bugs live in and around human homes , and until recently , they infested thousands of human homes throughout Arequipa , the second largest city in Perú . However , a decades-long control campaign drastically red... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"decision",
"making",
"tropical",
"diseases",
"social",
"sciences",
"parasitic",
"diseases",
"neuroscience",
"cognitive",
"psychology",
"cognition",
"neglected",
"tropical",
"diseases",
"infectious",
"disease",
"control",
"informat... | 2018 | Integrating evidence, models and maps to enhance Chagas disease vector surveillance |
Mating and gametogenesis are two essential components of animal reproduction . Gametogenesis must be modulated by the need for gametes , yet little is known of how mating , a process that utilizes gametes , may modulate the process of gametogenesis . Here , we report that mating stimulates female germline stem cell ( G... | In many animals , gametogenesis is supported by germline stem cells ( GSCs ) . Since GSCs are the fundamental cell population for successful reproduction , how such special GSCs are precisely proliferated is a long-standing question in biology . In the fruit fly Drosophila melanogaster , it is known that gametogenesis ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"invertebrates",
"medicine",
"and",
"health",
"sciences",
"reproductive",
"system",
"rna",
"interference",
"neuroscience",
"animals",
"animal",
"models",
"drosophila",
"melanogaster",
"model",
"organisms",
"stem",
"cells",
"membrane",
"receptor",
"signaling",
"hormone",
... | 2016 | Mating-Induced Increase in Germline Stem Cells via the Neuroendocrine System in Female Drosophila |
We recently found that Yersinia pseudotuberculosis can be used as a model of persistent bacterial infections . We performed in vivo RNA-seq of bacteria in small cecal tissue biopsies at early and persistent stages of infection to determine strategies associated with persistence . Comprehensive analysis of mixed RNA pop... | To establish infection and colonize within a host , infecting pathogens have to cope with a variety of destructive surroundings . The food-borne pathogen Y . pseudotuberculosis can cause persistent infection in mice . Upon infection , Y . pseudotuberculosis passes the anti-microbial gastrointestinal milieu and finally ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Reprogramming of Yersinia from Virulent to Persistent Mode Revealed by Complex In Vivo RNA-seq Analysis |
Typhoid fever is endemic across sub-Saharan Africa . However , estimates of the burden of typhoid are undermined by insufficient blood volumes and lack of sensitivity of blood culture . Here , we aimed to address this limitation by exploiting pre-enrichment culture followed by PCR , alongside routine blood culture to i... | There are increasing reports of typhoid fever epidemics in sub-Saharan Africa frequently affecting young adults and children aged between 5 and 16 years . In Asia where typhoid is hyperendemic , children aged 0 to 4 years also have a high burden of typhoid fever . Diagnosis of typhoid in young children is particularly ... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"body",
"fluids",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"microbiology",
"salmonella",
"typhi",
"health",
"care",
"organisms",
"bacterial",
"diseases",
"signs",
"and",
"symptoms",
"enterobacteriaceae",
"conval... | 2019 | Ascertaining the burden of invasive Salmonella disease in hospitalised febrile children aged under four years in Blantyre, Malawi |
Transitions at CpG dinucleotides , referred to as “CpG substitutions” , are a major mutational input into vertebrate genomes and a leading cause of human genetic disease . The prevalence of CpG substitutions is due to their mutational origin , which is dependent on DNA methylation . In comparison , other single nucleot... | Mutations are raw materials of evolution . Earlier studies have shown that mutations occur at different frequencies in different genomic regions . By investigating the patterns and causes of such “regional” variation of mutations , we can better understand the mechanisms of underlying mutagenesis . In the human and oth... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"genetics",
"and",
"genomics/genomics",
"genetics",
"and",
"genomics/comparative",
"genomics",
"evolutionary",
"biology/evolutionary",
"and",
"comparative",
"genetics",
"computational",
"biology/comparative",
"sequence",
"analysis",
"evolutionary",
"biology/genomics",
"genetics",... | 2008 | Mutations of Different Molecular Origins Exhibit Contrasting Patterns of Regional Substitution Rate Variation |
There is a need for sensitive and specific rapid diagnostic tests ( RDT ) for canine visceral leishmaniasis . The aims of this study were to evaluate the diagnostic performance of immunochromatographic dipstick RDTs using rK39 antigen for canine visceral leishmaniasis by ( i ) investigating the sensitivity of RDTs to d... | Canine visceral leishmaniasis is a vector-borne disease caused by the intracellular parasite Leishmania infantum . It is an important veterinary disease , and dogs are also the main animal reservoir for human infection . The disease is widespread in the Mediterranean area , and parts of Asia and South and Central Ameri... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"infectious",
"diseases",
"test",
"evaluation",
"veterinary",
"diseases",
"diagnostic",
"medicine",
"veterinary",
"parasitology",
"veterinary",
"diagnostics",
"leishmaniasis",
"neglected",
"tropical",
"diseases",
"quantitative",
"parasitology",
"veterinary",
"scie... | 2013 | Evaluation of rK39 Rapid Diagnostic Tests for Canine Visceral Leishmaniasis: Longitudinal Study and Meta-Analysis |
Most organisms use 24-hr circadian clocks to keep temporal order and anticipate daily environmental changes . In Drosophila melanogaster CLOCK ( CLK ) and CYCLE ( CYC ) initiates the circadian system by promoting rhythmic transcription of hundreds of genes . However , it is still not clear whether high amplitude transc... | Circadian clocks allow organisms to predict daily environmental changes . These clocks time the sleep/wake cycles and many other physiological and cellular pathways to 24hs rhythms . The current model states that circadian clocks keep time by the use of biochemical feedback loops . These feedback loops are responsible ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"invertebrates",
"molecular",
"neuroscience",
"neuroscience",
"animals",
"dna",
"transcription",
"animal",
"models",
"drosophila",
"melanogaster",
"model",
"organisms",
"drosophila",
"research",
"and",
"analysis",
"methods",
"gene",
"expression",
"insects",
"arthropoda",
... | 2014 | Synergistic Interactions between the Molecular and Neuronal Circadian Networks Drive Robust Behavioral Circadian Rhythms in Drosophila melanogaster |
Little is currently known about bacterial pathogen evolution and adaptation within the host during acute infection . Previous studies of Burkholderia pseudomallei , the etiologic agent of melioidosis , have shown that this opportunistic pathogen mutates rapidly both in vitro and in vivo at tandemly repeated loci , maki... | While both viral and bacterial pathogens have been shown to undergo genetic changes over the course of a chronic infection , this phenomenon has not been studied during an acute infection and as such is not well understood . Here , we examined within-host evolution of the pathogen Burkholderia pseudomallei during acute... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"infectious",
"diseases/bacterial",
"infections",
"genetics",
"and",
"genomics/microbial",
"evolution",
"and",
"genomics",
"evolutionary",
"biology/microbial",
"evolution",
"and",
"genomics",
"microbiology/microbial",
"evolution",
"and",
"genomics"
] | 2010 | Within-Host Evolution of Burkholderia pseudomallei in Four Cases of Acute Melioidosis |
The biofilm matrix , composed of exopolysaccharides , proteins , nucleic acids and lipids , plays a well-known role as a defence structure , protecting bacteria from the host immune system and antimicrobial therapy . However , little is known about its responsibility in the interaction of biofilm cells with host tissue... | Staphylococcus aureus is a pathogen responsible for a wide variety of infections , some of which become chronic due to the capacity of this bacteria to form multicellular communities that grow embedded in a self-produced extracellular matrix , referred to as biofilms . Numerous evidences have demonstrated that growing ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"bacteriology",
"bacterial",
"biofilms",
"microbial",
"pathogens",
"biology",
"microbiology",
"host-pathogen",
"interaction"
] | 2012 | Bap, a Biofilm Matrix Protein of Staphylococcus aureus Prevents Cellular Internalization through Binding to GP96 Host Receptor |
Maintaining balanced growth in a changing environment is a fundamental systems-level challenge for cellular physiology , particularly in microorganisms . While the complete set of regulatory and functional pathways supporting growth and cellular proliferation are not yet known , portions of them are well understood . I... | A major challenge for living organisms is the regulation of cellular growth in a fluctuating environment . Sudden changes in nutrient availability or the presence of stress factors typically require rapid adjustments of cellular growth . The misregulation of growth control in higher organisms is a major factor in the d... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [
"cell",
"biology/cell",
"growth",
"and",
"division",
"computational",
"biology/genomics",
"mathematics/statistics",
"cell",
"biology/gene",
"expression"
] | 2009 | Predicting Cellular Growth from Gene Expression Signatures |
We report on atomistic simulation of the folding of a natively-knotted protein , MJ0366 , based on a realistic force field . To the best of our knowledge this is the first reported effort where a realistic force field is used to investigate the folding pathways of a protein with complex native topology . By using the d... | It has been recently observed that the native structure of proteins can contain knots . These are formed during the folding process and are tightened in a specific ( i . e . native ) location , along the poly-peptide chain . The existence of knots hence implies a high degree coordination of local and global conformatio... | [
"Abstract",
"Introduction",
"Results/Discussion",
"Materials",
"and",
"Methods"
] | [
"physics",
"protein",
"folding",
"biophysics",
"theory",
"biophysics"
] | 2013 | Folding Pathways of a Knotted Protein with a Realistic Atomistic Force Field |
DNA replication is a key process in living organisms . DNA polymerase α ( Polα ) initiates strand synthesis , which is performed by Polε and Polδ in leading and lagging strands , respectively . Whereas loss of DNA polymerase activity is incompatible with life , viable mutants of Polα and Polε were isolated , allowing t... | Three DNA polymerases replicate DNA in Eukaryotes . DNA polymerase α ( Polα ) initiates strand synthesis , which is performed by Polε and Polδ in leading and lagging strands , respectively . Not only the information encoded in the DNA , but also the inheritance of chromatin states is essential during development . Loss... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | The Arabidopsis DNA Polymerase δ Has a Role in the Deposition of Transcriptionally Active Epigenetic Marks, Development and Flowering |
The neuronal mechanisms underlying the emergence of orientation selectivity in the primary visual cortex of mammals are still elusive . In rodents , visual neurons show highly selective responses to oriented stimuli , but neighboring neurons do not necessarily have similar preferences . Instead of a smooth map , one ob... | It is not yet fully clear how sensory information is being processed when it arrives in primary cortical areas . We studied this general question in the context of rodent vision . We focused on the example of orientation selectivity , namely the selectivity of cortical neurons for specific orientations of an elongated ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"visual",
"system",
"computational",
"neuroscience",
"biology",
"and",
"life",
"sciences",
"sensory",
"systems",
"computational",
"biology",
"neuroscience",
"neuronal",
"tuning",
"coding",
"mechanisms"
] | 2015 | Orientation Selectivity in Inhibition-Dominated Networks of Spiking Neurons: Effect of Single Neuron Properties and Network Dynamics |
Plants use the energy in sunlight for photosynthesis , but as a consequence are exposed to the toxic effect of UV radiation especially on DNA . The UV-induced lesions on DNA affect both transcription and replication and can also have mutagenic consequences . Here we investigated the regulation and the function of the r... | Recent research revealed strong links between Cullin4 ( CUL4 ) –based cullin-RING ubiquitin ligases ( CRLs ) and chromatin biology , including DNA replication and DNA repair . During Nucleotide Excision Repair ( NER ) , CUL4 together with DDB1 ( DNA Damage Binding protein 1 ) ubiquitylate an increasingly large number o... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"plant",
"biology/plant",
"genetics",
"and",
"gene",
"expression",
"molecular",
"biology/dna",
"repair",
"cell",
"biology/cell",
"signaling"
] | 2008 | Regulation and Role of Arabidopsis CUL4-DDB1A-DDB2 in Maintaining Genome Integrity upon UV Stress |
Grid cells in the entorhinal cortex encode the position of an animal in its environment with spatially periodic tuning curves with different periodicities . Recent experiments established that these cells are functionally organized in discrete modules with uniform grid spacing . Here we develop a theory for efficient c... | Grid cells encode a mammal’s estimate of position by firing in multiple locations . These locations are arranged on the vertices of a triangular lattice . Lattices vary in spacing and therefore represent position over different spatial scales . We suggest that grid cells encode position while taking into account the sp... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"action",
"potentials",
"medicine",
"and",
"health",
"sciences",
"membrane",
"potential",
"brain",
"electrophysiology",
"mathematical",
"models",
"neuroscience",
"optimization",
"mathematics",
"computational",
"neuroscience",
"neuronal",
"tuning",
"coding",
"mechanisms",
"r... | 2017 | An efficient coding theory for a dynamic trajectory predicts non-uniform allocation of entorhinal grid cells to modules |
ATP-dependent nucleosome remodelers influence genetic processes by altering nucleosome occupancy , positioning , and composition . In vitro , Saccharomyces cerevisiae ISWI and CHD remodelers require ∼30–85 bp of extranucleosomal DNA to reposition nucleosomes , but linker DNA in S . cerevisiae averages <20 bp . To addre... | Eukaryotic genomes are compacted into chromatin , which restricts access to DNA . In order for cells to transcribe , replicate , and repair DNA , chromatin structure must be altered . Eukaryotes have evolved chromatin remodeling enzymes that use energy derived from ATP hydrolysis to modulate chromatin structure . In vi... | [
"Abstract",
"Introduction",
"Results/Discussion",
"Materials",
"and",
"Methods"
] | [
"model",
"organisms",
"chromosome",
"biology",
"gene",
"expression",
"genetics",
"epigenetics",
"biology",
"genomics",
"yeast",
"and",
"fungal",
"models",
"saccharomyces",
"cerevisiae",
"chromatin",
"genetics",
"and",
"genomics",
"microbiology",
"dna",
"transcription"
] | 2013 | ISWI and CHD Chromatin Remodelers Bind Promoters but Act in Gene Bodies |
Pneumonic plague is the most rapid and lethal form of Yersinia pestis infection . Increasing evidence suggests that Y . pestis employs multiple levels of innate immune evasion and/or suppression to produce an early “pre-inflammatory” phase of pulmonary infection , after which the disease is highly inflammatory in the l... | Inhalation of respiratory droplets containing Yersinia pestis results in a rapidly developing and lethal pneumonia . Interestingly , early interactions between Y . pestis and host cells in the lung contribute to significant immune evasion , but also ultimately result in severe innate immune activation . Our results dem... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | Yersinia pestis Activates Both IL-1β and IL-1 Receptor Antagonist to Modulate Lung Inflammation during Pneumonic Plague |
Early detection of cancer-associated genomic instability is crucial , particularly in tumour types in which this instability represents the essential underlying mechanism of tumourigenesis . Currently used methods require the presence of already established neoplastic cells because they only detect clonal mutations . I... | In hereditary non-polyposis colorectal cancer ( HNPCC ) , a germline mutation in one allele of a gene responsible for repairing DNA damage predisposes the host to cancer , because subsequent somatic inactivation of the one wild-type allele leads to genomic instability that favours tumourigenesis . Nonneoplastic tissues... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"oncology/gastrointestinal",
"cancers",
"genetics",
"and",
"genomics/cancer",
"genetics",
"genetics",
"and",
"genomics/comparative",
"genomics",
"molecular",
"biology/dna",
"repair"
] | 2010 | Ultradeep Sequencing of a Human Ultraconserved Region Reveals Somatic and Constitutional Genomic Instability |
Significant numbers of pre-school children are infected with Schistosoma mansoni in sub-Saharan Africa and are likely to play a role in parasite transmission . However , they are currently excluded from control programmes . Molecular phylogenetic studies have provided insights into the evolutionary origins and transmis... | Many pre-school children in sub-Saharan Africa are infected with the parasite Schistosoma mansoni , which causes intestinal schistosomiasis . However , there has been no work published on the molecular epidemiology of Schistosoma in children under six or the role that these children play in parasite transmission . We a... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [] | 2013 | New Insights into the Molecular Epidemiology and Population Genetics of Schistosoma mansoni in Ugandan Pre-school Children and Mothers |
In oral squamous cell carcinoma ( OSCC ) , metastasis to lymph nodes is associated with a 50% reduction in 5-year survival . To identify a metastatic gene set based on DNA copy number abnormalities ( CNAs ) of differentially expressed genes , we compared DNA and RNA of OSCC cells laser-microdissected from non-metastati... | Neck lymph node metastasis is the most important prognostic factor in oral squamous cell carcinoma ( OSCC ) . To identify genes associated with this critical step of OSCC progression , we compared DNA copy number aberrations and gene expression differences between tumor cells found in metastatic lymph nodes versus thos... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"oncology",
"medicine",
"functional",
"genomics",
"molecular",
"cell",
"biology",
"metastasis",
"dna",
"modification",
"basic",
"cancer",
"research",
"gene",
"expression",
"biology",
"genomics",
"molecular",
"biology",
"genetics",
"and",
"genomics"
] | 2013 | Integrative Genomics in Combination with RNA Interference Identifies Prognostic and Functionally Relevant Gene Targets for Oral Squamous Cell Carcinoma |
Plants constantly adjust their growth , development and metabolism to the ambient light environment . Blue light is sensed by the Arabidopsis photoreceptors CRY1 and CRY2 which subsequently initiate light signal transduction by repressing the COP1/SPA E3 ubiquitin ligase . While the interaction between cryptochromes an... | Plants sense ambient light conditions through several photoreceptors that induce a complex signaling cascade to vastly alter gene expression , growth and development . Blue light activates two cryptochrome photoreceptors which subsequently inactivate an E3 ubiquitin ligase consisting of COP1 and SPA proteins . While CO... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"phosphorylation",
"yeast",
"two-hybrid",
"assays",
"protein",
"interactions",
"social",
"sciences",
"neuroscience",
"fungi",
"protein",
"interaction",
"assays",
"immunoprecipitation",
"seedlings",
"co-immunoprecipitation",
"molecular",
"biology",
"techniques",
"plants",
"res... | 2017 | The blue light-induced interaction of cryptochrome 1 with COP1 requires SPA proteins during Arabidopsis light signaling |
Prions arise when the cellular prion protein ( PrPC ) undergoes a self-propagating conformational change; the resulting infectious conformer is designated PrPSc . Frequently , PrPSc is protease-resistant but protease-sensitive ( s ) prions have been isolated in humans and other animals . We report here that protease-se... | Prions are infectious proteins that cause heritable , sporadic , and transmissible diseases in humans and other mammals . These infectious proteins arise when the normal form of the prion protein ( PrP ) adopts a self-perpetuating conformation . This disease-causing PrP form is frequently distinguished from normal PrP ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"neurological",
"disorders/prion",
"diseases"
] | 2010 | Protease-Sensitive Synthetic Prions |
Emerging and re-emerging arthropod-borne viruses ( arboviruses ) cause human and animal disease globally . Field and laboratory investigation of mosquito-borne arboviruses requires analysis of mosquito samples , either individually , in pools , or a body component , or secretion such as saliva . We assessed the applica... | Testing for the presence of arboviruses in mosquitoes used in laboratory experiments or surveillance usually involves collecting samples , from pools of hundreds of mosquitoes to the legs and wings of an individual mosquito and testing them by different methods . These methods can be labour intensive and costly and req... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results",
"Discussion"
] | [
"reverse",
"transcriptase-polymerase",
"chain",
"reaction",
"invertebrates",
"medicine",
"and",
"health",
"sciences",
"body",
"fluids",
"pathology",
"and",
"laboratory",
"medicine",
"togaviruses",
"laboratory",
"equipment",
"engineering",
"and",
"technology",
"pathogens",
... | 2018 | Mosquito excreta: A sample type with many potential applications for the investigation of Ross River virus and West Nile virus ecology |
Urogenital schistosomiasis is a tropical disease infecting more than 100 million people in sub-Saharan Africa . Individuals in endemic areas endure repeated infections with long-lived schistosome worms , and also encounter larval and egg stages of the life cycle . Protective immunity against infection develops slowly w... | Urogenital schistosomiasis is a tropical infectious disease caused by schistosome blood flukes , infecting more than 100 million people in sub-Saharan Africa . Protective immunity develops against schistosomes , but takes many years to do so , with children acquiring multiple infections with long-lived parasites . It i... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"humoral",
"immunity",
"medicine",
"public",
"health",
"and",
"epidemiology",
"infectious",
"disease",
"epidemiology",
"immunity",
"to",
"infections",
"immunology",
"parasitic",
"diseases",
"mathematics",
"infectious",
"diseases",
"epidemiology",
"biology",
"infectious",
... | 2011 | Explaining Observed Infection and Antibody Age-Profiles in Populations with Urogenital Schistosomiasis |
Retinal ganglion cells are commonly classified as On-center or Off-center depending on whether they are excited predominantly by brightening or dimming within the receptive field . Here we report that many ganglion cells in the salamander retina can switch from one response type to the other , depending on stimulus eve... | The eye communicates to the brain all the information needed for vision in the form of electrical pulses , or spikes , on optic nerve fibers . These spikes are produced by retinal ganglion cells , the output neurons of the retina . In a popular view of retinal function , each ganglion cell responds to a small region of... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"vertebrates",
"neuroscience",
"animals"
] | 2007 | Retinal Ganglion Cells Can Rapidly Change Polarity from Off to On |
Understanding the cell-specific binding patterns of transcription factors ( TFs ) is fundamental to studying gene regulatory networks in biological systems , for which ChIP-seq not only provides valuable data but is also considered as the gold standard . Despite tremendous efforts from the scientific community to condu... | Transcription factors play a central role in regulating various cellular processes . They bind to DNA in a cell-specific way . To study where a TF would bind to DNA , ChIP-seq experiment has been developed and widely adopted by the science community to study genome-wide in vivo protein-DNA interactions . However , for ... | [
"Abstract",
"Introduction",
"Models",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"binding",
"cell",
"physiology",
"chemical",
"characterization",
"neural",
"networks",
"nucleases",
"engineering",
"and",
"technology",
"deoxyribonucleases",
"enzymes",
"signal",
"processing",
"gene",
"regulation",
"regulatory",
"proteins",
"dna-binding",
"proteins"... | 2017 | Imputation for transcription factor binding predictions based on deep learning |
Intrinsically disordered regions have been associated with various cellular processes and are implicated in several human diseases , but their exact roles remain unclear . We previously defined two classes of conserved disordered regions in budding yeast , referred to as “flexible” and “constrained” conserved disorder ... | A protein's cellular and molecular function is typically determined by its folded structure . However , a large fraction of proteomes lack stably folded structure . These regions are referred to as intrinsically disordered . Protein disorder has largely been understudied , although it is emerging to have numerous impor... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"biochemistry",
"systems",
"biology",
"genome",
"expression",
"analysis",
"genomics",
"protein",
"interactions",
"proteins",
"biology",
"computational",
"biology",
"structural",
"genomics"
] | 2013 | Distinct Types of Disorder in the Human Proteome: Functional Implications for Alternative Splicing |
A priority for biomedical research is to understand the causes of variation in susceptibility to infection . To investigate genetic variation in a model system , we used flies collected from single populations of three different species of Drosophila and artificially selected them for resistance to the parasitoid wasp ... | We have found that three species of fruit fly evolve resistance to parasitic wasps ( parasitoids ) by increasing investment in their immune defences but they achieve this in different ways . Resistance always involved increases in the number of the circulating hemocytes , which are the blood cells that kill parasitoids... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"blood",
"cells",
"invertebrates",
"medicine",
"and",
"health",
"sciences",
"ecology",
"and",
"environmental",
"sciences",
"immune",
"cells",
"parasite",
"evolution",
"immunology",
"parasitic",
"diseases",
"animals",
"parasitology",
"animal",
"models",
"developmental",
... | 2017 | Parallel and costly changes to cellular immunity underlie the evolution of parasitoid resistance in three Drosophila species |
The tails of histone proteins are central players for all chromatin-mediated processes . Whereas the N-terminal histone tails have been studied extensively , little is known about the function of the H2A C-terminus . Here , we show that the H2A C-terminal tail plays a pivotal role in regulating chromatin structure and ... | Histones are the main protein components of chromatin . The N-terminal tails of histones stick out from the nucleosomes , the building blocks of chromatin , and are involved in the regulation of all DNA–dependent processes . Only Histone H2A has an additional C-terminal tail and currently very little is known about the... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Material",
"and",
"Methods"
] | [
"molecular",
"biology/histone",
"modification",
"biochemistry",
"molecular",
"biology/chromatin",
"structure"
] | 2010 | Histone H2A C-Terminus Regulates Chromatin Dynamics, Remodeling, and Histone H1 Binding |
Toxoplasma gondii establishes a chronic infection by forming cysts preferentially in the brain . This chronic infection is one of the most common parasitic infections in humans and can be reactivated to develop life-threatening toxoplasmic encephalitis in immunocompromised patients . Host-pathogen interactions during t... | A large portion of people worldwide are chronically infected with T . gondii . Chronic infection with this parasite is characterized by formation of tissue cysts . Bradyzoites slowly replicate within cysts during the chronic stage of infection leading to a corresponding increase in cyst size . Cysts occasionally ruptur... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [] | 2013 | Evidence for Finely-Regulated Asynchronous Growth of Toxoplasma gondii Cysts Based on Data-Driven Model Selection |
Stem cells are crucial in morphogenesis in plants and animals . Much is known about the mechanisms that maintain stem cell fates or trigger their terminal differentiation . However , little is known about how developmental time impacts stem cell fates . Using Arabidopsis floral stem cells as a model , we show that stem... | Stem cells have the capacity to self renew while producing daughter cells that undergo differentiation . While some stem cells remain as stem cells throughout the life of an organism , others are programmed to terminate within developmental contexts . It is presumed that stem cell termination is simply the differentiat... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"genetics",
"and",
"genomics/plant",
"genetics",
"and",
"gene",
"expression",
"developmental",
"biology/plant",
"growth",
"and",
"development",
"developmental",
"biology/stem",
"cells"
] | 2011 | ARGONAUTE10 and ARGONAUTE1 Regulate the Termination of Floral Stem Cells through Two MicroRNAs in Arabidopsis |
In response to a 2011 cholera outbreak in Papua New Guinea , the Government of the Solomon Islands initiated a cholera prevention program which included cholera disease prevention and treatment messaging , community meetings , and a pre-emptive cholera vaccination campaign targeting 11 , 000 children aged 1–15 years in... | We assessed knowledge , attitudes and practices of diarrhea and cholera disease and prevention in two areas of the Solomon Islands near Papua New Guinea . Both areas were ‘at risk’ for cholera disease and received messages about cholera prevention . Later , one of the areas also received vaccination against cholera . T... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"solomon",
"islands",
"ecology",
"and",
"environmental",
"sciences",
"water",
"resources",
"pathology",
"and",
"laboratory",
"medicine",
"immunology",
"tropical",
"diseases",
"geographical",
"locations",
"health",
"care",
"vaccin... | 2016 | Knowledge, Attitudes, and Practices regarding Diarrhea and Cholera following an Oral Cholera Vaccination Campaign in the Solomon Islands |
Identifying genes where a variant allele is preferentially expressed in tumors could lead to a better understanding of cancer biology and optimization of targeted therapy . However , tumor sample heterogeneity complicates standard approaches for detecting preferential allele expression . We therefore developed a novel ... | Identifying genes that contribute to cancer biology is complicated partly because cancers can have dozens of somatic mutations and thousands of germline variants . Somatic mutations are gene variants that arise after conception in an organism while germline variants are gene variants present at conception in an organis... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [] | 2016 | Preferential Allele Expression Analysis Identifies Shared Germline and Somatic Driver Genes in Advanced Ovarian Cancer |
Human immunodeficiency virus ( HIV-1 ) enters cells following sequential activation of the high-potential-energy viral envelope glycoprotein trimer by target cell CD4 and coreceptor . HIV-1 variants differ in their requirements for CD4; viruses that can infect coreceptor-expressing cells that lack CD4 have been generat... | Human immunodeficiency virus ( HIV-1 ) , the cause of acquired immunodeficiency syndrome ( AIDS ) , enters cells by attaching its major surface component , the envelope glycoprotein spike , to a receptor protein on the target cell called CD4 . This attachment promotes cell entry by allowing the envelope protein to bind... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"biomacromolecule-ligand",
"interactions",
"humoral",
"immunity",
"immunity",
"to",
"infections",
"immunology",
"microbiology",
"viral",
"structure",
"immunodeficiency",
"viruses",
"mechanisms",
"of",
"resistance",
"and",
"susceptibility",
"viral",
"immune",
"evasion",
"bio... | 2011 | Contribution of Intrinsic Reactivity of the HIV-1 Envelope Glycoproteins to CD4-Independent Infection and Global Inhibitor Sensitivity |
Higher order chromosome structure and nuclear architecture can have profound effects on gene regulation . We analyzed how compartmentalizing the genome by tethering heterochromatic regions to the nuclear lamina affects dosage compensation in the nematode C . elegans . In this organism , the dosage compensation complex ... | DNA isolated from the nucleus of a single human cell , if stretched out , would be 3 meters long . This amount of DNA must be packaged into a nucleus , which is orders of magnitude smaller . DNA of active genes tends to be loosely packed and localized internally within the nucleus , while DNA of inactive genes tends to... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"rna",
"interference",
"chromosome",
"structure",
"and",
"function",
"gene",
"regulation",
"cell",
"differentiation",
"developmental",
"biology",
"epigenetics",
"sex",
"chromosomes",
"chromosome",
"biology",
"genetic",
"interference",
"gene",
"expression",
"x",
"chromosom... | 2016 | Anchoring of Heterochromatin to the Nuclear Lamina Reinforces Dosage Compensation-Mediated Gene Repression |
Investigating the complex systems dynamics of the aging process requires integration of a broad range of cellular processes describing damage and functional decline co-existing with adaptive and protective regulatory mechanisms . We evolve an integrated generic cell network to represent the connectivity of key cellular... | The global process of aging disturbs a broad range of cellular mechanisms in a complex fashion and is not well understood . One important goal of computational approaches in aging is to develop integrated models in terms of a unifying aging theory , predicting progression of aging phenotypes grounded on molecular mecha... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"cell",
"biology/cellular",
"death",
"and",
"stress",
"responses",
"computational",
"biology",
"computational",
"biology/systems",
"biology",
"cell",
"biology/cell",
"signaling"
] | 2010 | Rule-Based Cell Systems Model of Aging using Feedback Loop Motifs Mediated by Stress Responses |
Schistosoma haematobium and Schistosoma mansoni are blood flukes that cause urogenital and intestinal schistosomiasis , respectively . In Côte d′Ivoire , both species are endemic and control efforts are being scaled up . Accurate knowledge of the geographical distribution , including delineation of high-risk areas , is... | Two types of blood-dwelling parasitic worms that cause schistosomiasis ( i . e . , Schistosoma haematobium and Schistosoma mansoni ) are endemic in Côte d′Ivoire , West Africa . Reliable information on their geographical distribution is needed to plan and guide the national control program . Recently , control efforts ... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"public",
"and",
"occupational",
"health",
"medicine",
"and",
"health",
"sciences",
"simulation",
"and",
"modeling",
"biology",
"and",
"life",
"sciences",
"parasitology",
"research",
"and",
"analysis",
"methods"
] | 2014 | Bayesian Risk Mapping and Model-Based Estimation of Schistosoma haematobium–Schistosoma mansoni Co-distribution in Côte d′Ivoire |
Tau is a natively unfolded protein that forms intracellular aggregates in the brains of patients with Alzheimer's disease . To decipher the mechanism underlying the formation of tau aggregates , we developed a novel approach for constructing models of natively unfolded proteins . The method , energy-minima mapping and ... | Alzheimer's disease pathology is characterized by two types of protein aggregates that are found in the brain—amyloid plaques and neurofibrillary tangles . Several studies suggest that these aggregates also play an active role in the disease process . Thus , an understanding of disease pathogenesis may be facilitated b... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"biophysics/protein",
"folding"
] | 2008 | The Effect of a ΔK280 Mutation on the Unfolded State of a Microtubule-Binding Repeat in Tau |
Efforts are underway to eliminate trachoma as a public health problem by 2020 . Programmatic guidelines are based on clinical signs that correlate poorly with Chlamydia trachomatis ( Ct ) infection in post-treatment and low-endemicity settings . Age-specific seroprevalence of anti Ct Pgp3 antibodies has been proposed a... | Trachoma is caused by the bacterium Chlamydia trachomatis ( Ct ) . Individuals who have previously been infected with Ct carry specific antibodies in their blood . Recent studies have suggested that these antibodies may be a good way to estimate the intensity of transmission of this bacterium in a population . Among pe... | [
"Abstract",
"Introduction",
"Methods",
"and",
"Materials",
"Results",
"Discussion",
"Conclusion"
] | [
"medicine",
"and",
"health",
"sciences",
"enzyme-linked",
"immunoassays",
"body",
"fluids",
"pathology",
"and",
"laboratory",
"medicine",
"immune",
"physiology",
"immunology",
"tropical",
"diseases",
"geographical",
"locations",
"uganda",
"bacterial",
"diseases",
"eye",
... | 2017 | Defining Seropositivity Thresholds for Use in Trachoma Elimination Studies |
Blocking neurotransmission , botulinum neurotoxin is the most poisonous biological substance known to mankind . Despite its infamy as the scourge of the food industry , the neurotoxin is increasingly used as a pharmaceutical to treat an expanding range of muscle disorders . Whilst neurotoxin expression by the spore-for... | Botulinum neurotoxin produced by the spore-forming bacterium Clostridium botulinum is the most poisonous biological substance known to mankind . By blocking neurotransmission , the neurotoxin causes a flaccid paralysis called botulism which may to lead to death upon respiratory muscle collapse . Despite its infamy as t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"medicine",
"bacterial",
"diseases",
"infectious",
"diseases",
"botulism",
"microbial",
"pathogens",
"biology",
"microbiology",
"bacterial",
"pathogens",
"gram",
"positive"
] | 2013 | Two-Component Signal Transduction System CBO0787/CBO0786 Represses Transcription from Botulinum Neurotoxin Promoters in Clostridium botulinum ATCC 3502 |
The causative agents of leptospirosis are responsible for an emerging zoonotic disease worldwide . One of the major routes of transmission for leptospirosis is the natural environment contaminated with the urine of a wide range of reservoir animals . Soils and surface waters also host a high diversity of non-pathogenic... | Leptospirosis which is an emerging zoonotic disease worldwide , is transmitted to humans through contact with soils or surface waters contaminated with the urine of reservoir animals . Species of Leptospira , which include infectious and non-infectious strains , are ubiquitous in the environment . In this study we have... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"taxonomy",
"medicine",
"and",
"health",
"sciences",
"leptospira",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"tropical",
"diseases",
"microbiology",
"bacterial",
"diseases",
"phylogenetics",
"data",
"management",
"phylogenetic",
"analysis",
"genome",
"ana... | 2019 | Revisiting the taxonomy and evolution of pathogenicity of the genus Leptospira through the prism of genomics |
Terrestrial arthropods are commonly infected with maternally inherited bacterial symbionts that cause cytoplasmic incompatibility ( CI ) . In CI , the outcome of crosses between symbiont-infected males and uninfected females is reproductive failure , increasing the relative fitness of infected females and leading to sp... | Many arthropods are infected with bacterial symbionts that are maternally transmitted and have a great impact on their hosts' biology , ecology , and evolution . One of the most common phenotypes of facultative symbionts appears to be cytoplasmic incompatibility ( CI ) , a type of reproductive failure in which bacteria... | [
"Abstract",
"Introduction",
"Results/Discussion",
"Materials",
"and",
"Methods"
] | [
"genomics",
"microbial",
"evolution",
"biology",
"evolutionary",
"biology",
"comparative",
"genomics",
"microbiology",
"host-pathogen",
"interaction",
"genetics",
"and",
"genomics"
] | 2012 | Comparative Genomics Suggests an Independent Origin of Cytoplasmic Incompatibility in Cardinium hertigii |
Cells decode information of signaling activation at a scale of tens of minutes by downstream gene expression with a scale of hours to days , leading to cell fate decisions such as cell differentiation . However , no system identification method with such different time scales exists . Here we used compressed sensing te... | The key points of this study are two-fold: The first point is the decoding mechanism for cell differentiation . We previously demonstrated the encoding mechanism of cell fate decision information by transient and sustained ERK activation in PC12 cells , and also identified the decoding genes essential for cell differen... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"applied",
"mathematics",
"neurites",
"neuroscience",
"cell",
"differentiation",
"simulation",
"and",
"modeling",
"algorithms",
"developmental",
"biology",
"systems",
"science",
"mathematics",
"signaling",
"cascades",
"neuronal",
"dendrites",
"research",
"and",
"analysis",
... | 2017 | System identification of signaling dependent gene expression with different time-scale data |
The elimination of infectious diseases requires reducing transmission below a certain threshold . The Visceral Leishmaniasis ( VL ) Elimination Initiative in Southeast Asia aims to reduce the annual VL incidence rate below 1 case per 10 , 000 inhabitants in endemic areas by 2015 via a combination of case management and... | Visceral leishmaniasis is suspected to be the second largest parasitic killer in the world after malaria . On the Indian subcontinent , the vector-borne disease is caused by the protozoan flagellate Leishmania donovani and transmitted by the sand fly Phlebotomus argentipes . The regional elimination programme has sugge... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"medicine",
"and",
"health",
"sciences",
"mathematics",
"infectious",
"disease",
"epidemiology",
"epidemiology",
"applied",
"mathematics",
"biology",
"and",
"life",
"sciences",
"population",
"biology",
"physical",
"sciences"
] | 2014 | Model-Based Investigations of Different Vector-Related Intervention Strategies to Eliminate Visceral Leishmaniasis on the Indian Subcontinent |
The type III secretion system ( TTSS ) is a key mechanism for host cell interaction used by a variety of bacterial pathogens and symbionts of plants and animals including humans . The TTSS represents a molecular syringe with which the bacteria deliver effector proteins directly into the host cell cytosol . Despite the ... | Many Gram-negative bacteria live closely associated with humans , animals , or plants . The pathogenic or symbiotic interactions between bacteria and host are often mediated by the secretion of bacterial proteins into the host cells . The Type III secretion system ( TTSS ) is one of the best studied cellular machinerie... | [
"Abstract",
"Introduction",
"Results/Discussion",
"Materials",
"and",
"Methods"
] | [
"microbiology/plant-biotic",
"interactions",
"computational",
"biology/sequence",
"motif",
"analysis",
"microbiology/microbial",
"evolution",
"and",
"genomics",
"molecular",
"biology/bioinformatics",
"public",
"health",
"and",
"epidemiology/infectious",
"diseases",
"computational",... | 2009 | Sequence-Based Prediction of Type III Secreted Proteins |
Several bacteria in the gut microbiota have been shown to be associated with inflammatory bowel disease ( IBD ) , and dozens of IBD genetic variants have been identified in genome-wide association studies . However , the role of the microbiota in the etiology of IBD in terms of host genetic susceptibility remains uncle... | In this study , we used observational data to explore associations between host genetics and the commensal microbiome in inflammatory bowel disease cases . Our analysis identified four associations involving two genes and four bacterial taxa and replicated two of these associations in independent cohorts . Then , we de... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"bacteriology",
"medicine",
"and",
"health",
"sciences",
"microbiome",
"pathology",
"and",
"laboratory",
"medicine",
"pathogens",
"microbiology",
"ulcerative",
"colitis",
"social",
"sciences",
"colitis",
"gastroenterology",
"and",
"hepatology",
"bacterial",
"genetics",
"i... | 2019 | Genetic effects on the commensal microbiota in inflammatory bowel disease patients |
Large-scale protein-protein interaction networks provide new opportunities for understanding cellular organization and functioning . We introduce network schemas to elucidate shared mechanisms within interactomes . Network schemas specify descriptions of proteins and the topology of interactions among them . We develop... | Large-scale networks of protein-protein interactions provide a view into the workings of the cell . However , these interaction maps do not come with a key for interpreting them , so it is necessary to develop methods that shed light on their functioning and organization . We propose the language of network schemas for... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"computer",
"science",
"computational",
"biology/systems",
"biology",
"computational",
"biology/signaling",
"networks"
] | 2008 | Organization of Physical Interactomes as Uncovered by Network Schemas |
Epigenetic mechanisms and chromatin structure play an important role in development . Their impact is therefore expected to be strong in parasites with complex life cycles and multiple , strikingly different , developmental stages , i . e . developmental plasticity . Some studies have already described how the chromati... | Schistosoma mansoni is a parasitic flatworm and causative agent of intestinal schistosomiasis , a neglected tropical disease affecting 67 million people worldwide . The parasite has a complex life cycle involving two consecutive obligate hosts ( a poikilotherm snail and a homeotherm mammal ) and two transitions between... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results",
"Discussion"
] | [
"schistosoma",
"invertebrates",
"schistosoma",
"mansoni",
"helminths",
"gene",
"regulation",
"dna-binding",
"proteins",
"animals",
"parasitology",
"dna",
"transcription",
"developmental",
"biology",
"sporocysts",
"epigenetics",
"chromatin",
"transcriptional",
"control",
"chro... | 2018 | Histone methylation changes are required for life cycle progression in the human parasite Schistosoma mansoni |
In a developing embryo , the spatial distribution of a signaling molecule , or a morphogen gradient , has been hypothesized to carry positional information to pattern tissues . Recent measurements of morphogen distribution have allowed us to subject this hypothesis to rigorous physical testing . In the early Drosophila... | In the early stages of development , an embryo must establish the beginnings of a body plan in order to grow organs and limbs in the right places . Across the fruit fly embryo , proteins known as morphogens cause chain reactions that eventually lead to the growth of many different body parts . One specific morphogen , ... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [] | 2015 | The Presence of Nuclear Cactus in the Early Drosophila Embryo May Extend the Dynamic Range of the Dorsal Gradient |
Intelligence is our ability to learn appropriate responses to new stimuli and situations . Neurons in association cortex are thought to be essential for this ability . During learning these neurons become tuned to relevant features and start to represent them with persistent activity during memory delays . This learnin... | Working memory is a cornerstone of intelligence . Most , if not all , tasks that one can imagine require some form of working memory . The optimal solution of a working memory task depends on information that was presented in the past , for example choosing the right direction at an intersection based on a road-sign so... | [
"Abstract",
"Introduction",
"Model",
"Results",
"Discussion"
] | [] | 2015 | How Attention Can Create Synaptic Tags for the Learning of Working Memories in Sequential Tasks |
Leptospirosis is one of the most widespread zoonotic diseases , which is of global medical and veterinary importance , and also a re-emerging infectious disease . The main tracks of transmission are known; however , the relative importance of each of the components and the respective environmental risk factors are uncl... | Leptospirosis is a bacterial disease passed from animals to people—either through direct contact with animals or indirectly via the environment . The disease can be found worldwide but is more important in tropical and subtropical countries . Due to their sheer genetic diversity , virtually all mammals can be infected ... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [] | 2015 | Environmental and Behavioural Determinants of Leptospirosis Transmission: A Systematic Review |
Aphids are important agricultural pests and also biological models for studies of insect-plant interactions , symbiosis , virus vectoring , and the developmental causes of extreme phenotypic plasticity . Here we present the 464 Mb draft genome assembly of the pea aphid Acyrthosiphon pisum . This first published whole g... | Aphids are common pests of crops and ornamental plants . Facilitated by their ancient association with intracellular symbiotic bacteria that synthesize essential amino acids , aphids feed on phloem ( sap ) . Exploitation of a diversity of long-lived woody and short-lived herbaceous hosts by many aphid species is a resu... | [
"Abstract",
"Introduction",
"Results",
"and",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"genetics",
"and",
"genomics/genome",
"projects",
"genetics",
"and",
"genomics/microbial",
"evolution",
"and",
"genomics"
] | 2010 | Genome Sequence of the Pea Aphid Acyrthosiphon pisum |
Classical quantitative genetic analyses estimate additive and non-additive genetic and environmental components of variance from phenotypes of related individuals without knowing the identities of quantitative trait loci ( QTLs ) . Many studies have found a large proportion of quantitative trait variation can be attrib... | There has been a great amount of debate over the relative importance of additivity and non-additivity in quantitative trait variation . The main argument supporting the importance of additivity is the observation that the additive component of genetic variance is much greater than non-additive variance components , whi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [
"epistasis",
"genetic",
"dominance",
"genetic",
"polymorphism",
"quantitative",
"trait",
"loci",
"phenotypes",
"heredity",
"genetics",
"biology",
"and",
"life",
"sciences",
"population",
"genetics",
"population",
"biology",
"quantitative",
"traits",
"evolutionary",
"biolo... | 2016 | The Genetic Architecture of Quantitative Traits Cannot Be Inferred from Variance Component Analysis |
The natural infection of sand flies by Leishmania was examined in the Department of Huanuco of Peru , where cutaneous leishmaniasis caused by a hybrid of Leishmania ( Viannia ) braziliensis/L . ( V . ) peruviana is endemic . A total of 2 , 997 female sand flies were captured by CDC light traps and Shannon traps , of wh... | Leishmaniasis is a protozoan disease caused by members of the genus Leishmania , which are distributed worldwide , especially in tropical and subtropical areas . More than 20 species of Leishmania are described as causative agents of human leishmaniases and clinical features are largely associated with the infective sp... | [
"Abstract",
"Introduction",
"Materials",
"and",
"Methods",
"Results",
"Discussion"
] | [] | 2016 | First Evidence of a Hybrid of Leishmania (Viannia) braziliensis/L. (V.) peruviana DNA Detected from the Phlebotomine Sand Fly Lutzomyia tejadai in Peru |
The organization of computations in networks of spiking neurons in the brain is still largely unknown , in particular in view of the inherently stochastic features of their firing activity and the experimentally observed trial-to-trial variability of neural systems in the brain . In principle there exists a powerful co... | It is well-known that neurons communicate with short electric pulses , called action potentials or spikes . But how can spiking networks implement complex computations ? Attempts to relate spiking network activity to results of deterministic computation steps , like the output bits of a processor in a digital computer ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Methods"
] | [] | 2011 | Neural Dynamics as Sampling: A Model for Stochastic Computation in Recurrent Networks of Spiking Neurons |
Mammalian nuclear receptors broadly influence metabolic fitness and serve as popular targets for developing drugs to treat cardiovascular disease , obesity , and diabetes . However , the molecular mechanisms and regulatory pathways that govern lipid metabolism remain poorly understood . We previously found that the Cae... | Mammalian nuclear receptors are actively targeted for treatment of a range of cardiovascular diseases and obesity . However , effective drug development still depends on a more exhaustive characterization of how different nuclear receptors mediate their different physiological effects in vivo . Taking advantage of the ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"biology"
] | 2012 | Coordinate Regulation of Lipid Metabolism by Novel Nuclear Receptor Partnerships |
The endoplasmic-reticulum quality-control ( ERQC ) system shuttles misfolded proteins for degradation by the proteasome through the well-defined ER-associated degradation ( ERAD ) pathway . In contrast , very little is known about the role of autophagy in ERQC . Macro-autophagy , a collection of pathways that deliver p... | ER-quality control ( ERQC ) ensures delivery of “native” proteins through the secretory pathway . Currently , ER-associated degradation ( ERAD ) , which delivers misfolded proteins for degradation by the proteasome , is considered a major ERQC pathway , with autophagy as its backup . Until now , the role of autophagy ,... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [] | 2015 | A Role for Macro-ER-Phagy in ER Quality Control |
A major task in human genetics is to understand the nature of the evolutionary processes that have shaped the gene pools of contemporary populations . Ancient DNA studies have great potential to shed light on the evolution of populations because they provide the opportunity to sample from the same population at differe... | Ancient DNA studies have great potential to shed light on the evolution of populations because they provide the opportunity to sample from the same population at different points in time . However , ancient DNA studies are often based on DNA extracted from only one or a few individuals and , therefore , do not lend the... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"evolutionary",
"biology/human",
"evolution",
"molecular",
"biology",
"genetics",
"and",
"genomics/population",
"genetics"
] | 2009 | Sequences From First Settlers Reveal Rapid Evolution in Icelandic mtDNA Pool |
The ability of mice to resist infection with the protozoan parasite , Toxoplasma gondii , depends in large part on the function of members of a complex family of atypical large GTPases , the interferon-gamma-inducible immunity-related GTPases ( IRG proteins ) . Nevertheless , some strains of T . gondii are highly virul... | Toxoplasma gondii is an intracellular parasitic protozoan infecting about a third of humankind . Humans , however , are unlikely to be important hosts in terms of the evolution of the parasite because , for completion of the parasite sexual cycle , the infected animal must be eaten by a cat . Therefore , important inte... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"parasite",
"evolution",
"enzymes",
"immunology",
"microbiology",
"host-pathogen",
"interaction",
"parasitology",
"animal",
"models",
"model",
"organisms",
"enzyme",
"regulation",
"protozoan",
"models",
"biology",
"mouse",
"biochemistry",
"enzyme",
"structure",
"immunity",
... | 2012 | A Toxoplasma gondii Pseudokinase Inhibits Host IRG Resistance Proteins |
Emergence of a new influenza strain leads to a rapid global spread of the virus due to minimal antibody immunity . Pre-existing CD8+ T-cell immunity directed towards conserved internal viral regions can greatly ameliorate the disease . However , mutational escape within the T cell epitopes is a substantial issue for vi... | Introduction of a new influenza strain into human circulation leads to a rapid global spread of the virus due to minimal antibody immunity . Established T-cell immunity towards conserved viral regions provides some protection against influenza and promotes rapid recovery . However , influenza viruses mutate to escape t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"Methods"
] | [
"immunology/immunity",
"to",
"infections",
"immunology/immune",
"response"
] | 2010 | Protective Efficacy of Cross-Reactive CD8+ T Cells Recognising Mutant Viral Epitopes Depends on Peptide-MHC-I Structural Interactions and T Cell Activation Threshold |
A global strategy of mass drug administration ( MDA ) has greatly reduced the burden of lymphatic filariasis ( LF ) in endemic countries . In Madagascar , the National Programme to eliminate LF has scaled-up annual MDA of albendazole and diethylcarbamazine across the country in the last decade , but its impact on LF tr... | Lymphatic filariasis is a neglected disease with chronic disabling consequences . Endemic countries have reduced lymphatic filariasis transmission through a strategy of annual rounds of mass drug administration ( MDA ) , but the impact of such strategy has not yet been reported for Madagascar . In this study we conduct... | [
"Abstract",
"Introduction",
"Methods",
"Results",
"Discussion"
] | [
"cancer",
"detection",
"and",
"diagnosis",
"children",
"medicine",
"and",
"health",
"sciences",
"lymphatic",
"mapping",
"education",
"sociology",
"geographical",
"locations",
"tropical",
"diseases",
"social",
"sciences",
"parasitic",
"diseases",
"oncology",
"age",
"grou... | 2018 | Towards elimination of lymphatic filariasis in southeastern Madagascar: Successes and challenges for interrupting transmission |
Vision is the dominant sensory modality in many organisms for foraging , predator avoidance , and social behaviors including mate selection . Vertebrate visual perception is initiated when light strikes rod and cone photoreceptors within the neural retina of the eye . Sensitivity to individual colors , i . e . , peak s... | Vertebrate color vision is possible when cone visual pigments with distinct peak spectral sensitivities ( λmax ) are expressed in separate cone populations and provide differential input to downstream neurons . The λmax is a function of the type of chromophore ( such as 11-cis retinal ) and the amino acid sequence of t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"fish",
"molecular",
"dynamics",
"vertebrates",
"social",
"sciences",
"pigments",
"animals",
"neuroscience",
"animal",
"models",
"osteichthyes",
"model",
"organisms",
"mathematics",
"forecasting",
"statistics",
"(mathematics)",
"materials",
"science",
"experimental",
"organ... | 2018 | Predicting peak spectral sensitivities of vertebrate cone visual pigments using atomistic molecular simulations |
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