Search results for "Association study"

showing 10 items of 374 documents

Genetic determinants of heel bone properties: genome-wide association meta-analysis and replication in the GEFOS/GENOMOS consortium

2014

Quantitative ultrasound of the heel captures heel bone properties that independently predict fracture risk and, with bone mineral density (BMD) assessed by X-ray (DXA), may be convenient alternatives for evaluating osteoporosis and fracture risk. We performed a meta-analysis of genome-wide association (GWA) studies to assess the genetic determinants of heel broadband ultrasound attenuation (BUA; n = 14 260), velocity of sound (VOS; n = 15 514) and BMD (n = 4566) in 13 discovery cohorts. Independent replication involved seven cohorts with GWA data (in silico n = 11 452) and new genotyping in 15 cohorts (de novo n = 24 902). In combined random effects, meta-analysis of the discovery and repli…

MaleOncologyHeelBone densityOsteoporosisGenome-wide association studyCohort StudiesFractures Bonequantitative ultrasoundBone DensityGenetics (clinical)riskUltrasonographyAged 80 and overGeneticsmedicine.diagnostic_testAssociation Studies Articlesphenotypesta3141General MedicineMiddle Aged3. Good healthmedicine.anatomical_structureosteoporosis diagnostic radiologic examination roentgen rays ultrasonography bone mineral density fractures calcaneus chromosomes genes genome heel longevity single nucleotide polymorphism sound genetics chromosome 7q31 genotype determination genome-wide association study attenuation osteoporotic fracture risk/dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_beingFemalewomenAdultmusculoskeletal diseasesmedicine.medical_specialtyx-ray absorptiometrySingle-nucleotide polymorphismdensitometryBiologyPolymorphism Single NucleotidecalcaneusYoung AdultSDG 3 - Good Health and Well-beingInternal medicineGeneticsmedicineHumansGenetic Predisposition to DiseaseMolecular BiologyDual-energy X-ray absorptiometryVLAGAgedGlobal NutritionWereldvoedingta1184ta3121medicine.diseaseosteoporosisCalcaneusGenetic epidemiologyfractureOsteoporosismineral densityCalcaneusGenome-Wide Association Study
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Clinical Significance of Rare Copy Number Variations in Epilepsy A Case-Control Survey Using Microarray-Based Comparative Genomic Hybridization

2012

Objective To perform an extensive search for genomic rearrangements by microarray-based comparative genomic hybridization in patients with epilepsy. Design Prospective cohort study. Setting Epilepsy centers in Italy. Patients Two hundred seventy-nine patients with unexplained epilepsy, 265 individuals with nonsyndromic mental retardation but no epilepsy, and 246 healthy control subjects were screened by microarray-based comparative genomic hybridization. Main Outcomes Measures Identification of copy number variations (CNVs) and gene enrichment. Results Rare CNVs occurred in 26 patients (9.3%) and 16 healthy control subjects (6.5%) (P = .26). The CNVs identified in patients were larger (P = …

MaleOncologyendocrine system diseasesMicroarrayGene DosagePreschool Cohort Studies Computational Biology Diagnostic and Statistical Manual of Mental Disorders EpilepsyBioinformaticsPolymerase Chain ReactionFluorescence Intellectual DisabilityCohort StudiesEpilepsySettore MED/38 - Pediatria Generale E SpecialisticaGene DuplicationProspective StudiesCopy-number variationAge of OnsetChildProspective cohort studyIn Situ Hybridization Fluorescenceepidemiology/genetics Nucleic Acid Hybridization Polymerase Chain Reaction Prospective Studies Young AdultGene RearrangementNucleic Acid HybridizationMiddle AgedControl subjectsMagnetic Resonance ImagingDiagnostic and Statistical Manual of Mental Disordersgenetics Female Gene Deletion Gene Dosage Gene Duplication Gene Rearrangement Genome-Wide Association Study Humans In Situ HybridizationItalyRare Copy Number Variations EpilepsyChild PreschoolFemaleepidemiology/genetics ItalyAdultmedicine.medical_specialtyAdolescentBiologyYoung AdultAdolescent Adult Age of Onset Aged Child ChildArts and Humanities (miscellaneous)Intellectual DisabilityInternal medicinemental disordersmedicineHumansIn patientClinical significanceepidemiology Magnetic Resonance Imaging Male Microarray Analysis Middle Aged Nervous System DiseaseAgedEpilepsyComputational BiologyMicroarray Analysismedicine.diseaseSettore MED/03 - Genetica MedicaNeurology (clinical)Nervous System DiseasesGene DeletionGenome-Wide Association StudyComparative genomic hybridization
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Does parental expressed emotion moderate genetic effects in ADHD? An exploration using a genome wide association scan.

2008

Contains fulltext : 70497.pdf (Publisher’s version ) (Closed access) Studies of gene x environment (G x E) interaction in ADHD have previously focused on known risk genes for ADHD and environmentally mediated biological risk. Here we use G x E analysis in the context of a genome-wide association scan to identify novel genes whose effects on ADHD symptoms and comorbid conduct disorder are moderated by high maternal expressed emotion (EE). SNPs (600,000) were genotyped in 958 ADHD proband-parent trios. After applying data cleaning procedures we examined 429,981 autosomal SNPs in 909 family trios. ADHD symptom severity and comorbid conduct disorder was measured using the Parental Account of Ch…

MaleParentsCandidate geneGenetics and epigenetic pathways of disease [NCMLS 6]Medizin2804 Cellular and Molecular NeuroscienceHostilityNeuroinformatics [DCN 3]2738 Psychiatry and Mental Health0302 clinical medicineGene FrequencyPerception and Action [DCN 1]Gene–environment interactionParent-Child RelationsChildGenetics (clinical)NeuregulinsbiologySLC1A1Intracellular Signaling Peptides and Proteins10058 Department of Child and Adolescent PsychiatryPsychiatry and Mental healthExpressed EmotionExcitatory Amino Acid Transporter 3Conduct disorderChild PreschoolFemalemedicine.symptomFunctional Neurogenomics [DCN 2]Clinical psychologyGenetic Markers2716 Genetics (clinical)AdolescentQuantitative Trait Loci610 Medicine & healthSingle-nucleotide polymorphismContext (language use)Mental health [NCEBP 9]Polymorphism Single NucleotideGenomic disorders and inherited multi-system disorders [IGMD 3]Interviews as Topic03 medical and health sciencesCellular and Molecular NeuroscienceCognitive neurosciences [UMCN 3.2]mental disordersmedicineExpressed emotionHumansddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersAllelesProbabilityModels Geneticbusiness.industryGenome Humanmedicine.disease030227 psychiatryGenetic defects of metabolism [UMCN 5.1]Attention Deficit Disorder with Hyperactivitybiology.proteinbusiness030217 neurology & neurosurgeryGenome-Wide Association Study
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Hereditary cerebral hemorrhage with amyloidosis associated with the E693K mutation of APP

2010

Objective To report the clinical, genetic, neuroimaging, and neuropathologic studies of patients with the hereditary cerebral hemorrhage with amyloidosis linked to the APP E693K mutation. Design Case series. Clinical details and laboratory results were collected by direct evaluation and previous medical records. DNA analysis was carried out in several affected subjects and healthy individuals. Neuropathologic examination was performed in 2 subjects. Setting Southern Lombardy, Italy. Patients Individuals with and without amyloidosis in 4 unrelated Italian families (N = 37). Main Outcome Measure Genotype-phenotype relationship. Results The affected individuals presented with recurrent headach…

MalePathologymedicine.medical_specialtySubarachnoid hemorrhageGenotypeApolipoprotein E4Glutamic AcidNeuropathologyAmyloid beta-Protein PrecursorGene FrequencyArts and Humanities (miscellaneous)medicineHumansGenetic Predisposition to DiseaseCognitive declineAgedCerebral HemorrhageFamily HealthAmyloid beta-Peptidesbusiness.industryLysineAmyloidosisLeukoaraiosisAutosomal dominant traitMiddle Agedmedicine.diseaseMagnetic Resonance ImagingPeptide FragmentsItalyHemosiderinMutationHereditary cerebral hemorrhage with amyloidosisFemaleNeurology (clinical)businessAmyloidosis FamilialGenome-Wide Association Study
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Genome-wide association study of motor coordination problems in ADHD identifies genes for brain and muscle function.

2012

Item does not contain fulltext OBJECTIVES: Motor coordination problems are frequent in children with attention deficit/hyperactivity disorder (ADHD). We performed a genome-wide association study to identify genes contributing to motor coordination problems, hypothesizing that the presence of such problems in children with ADHD may identify a sample of reduced genetic heterogeneity. METHODS: Children with ADHD from the International Multicentre ADHD Genetic (IMAGE) study were evaluated with the Parental Account of Children's Symptoms. Genetic association testing was performed in PLINK on 890 probands with genome-wide genotyping data. Bioinformatics enrichment-analysis was performed on highly…

MaleProbandmedicine.medical_specialtyGENETICSAdolescentGenotypeDCN MP - Plasticity and memoryMedizinQUESTIONNAIRESocial SciencesCHILDRENGenome-wide association studySingle-nucleotide polymorphismDCN PAC - Perception action and controlBioinformaticsMental health [NCEBP 9]Polymorphism Single NucleotideGenomic disorders and inherited multi-system disorders DCN MP - Plasticity and memory [IGMD 3]03 medical and health sciences0302 clinical medicineSurveys and QuestionnairesADOLESCENTSmedicineHumansDCN PAC - Perception action and control NCEBP 9 - Mental healthddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersRestless legs syndromeAmyotrophic lateral sclerosisChildPsychiatryBiological Psychiatry030304 developmental biologyGenetic association0303 health sciencesGenetic heterogeneityGenomic disorders and inherited multi-system disorders [DCN PAC - Perception action and control IGMD 3]medicine.disease3. Good healthMotor coordinationMotor Skills DisordersPsychiatry and Mental healthAttention Deficit Disorder with HyperactivityChild PreschoolFemalePsychologyINTERVENTION030217 neurology & neurosurgeryGenome-Wide Association Study
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Polymorphisms of an innate immune gene, toll-like receptor 4, and aggressive prostate cancer risk: a systematic review and meta-analysis.

2014

Background: Toll-like receptor 4 (TLR4) is one of the best known TLR members expressed on the surface of several leukocytes and tissue cells and has a key function in detecting pathogen and danger-associated molecular patterns. The role of TLR4 in the pathophysiology of several age-related diseases is also well recognized, such as prostate cancer (PCa). TLR4 polymorphisms have been related to PCa risk, but the relationship between TLR4 genotypes and aggressive PCa risk has not been evaluated by any systematic reviews. Methods: We performed a systematic review and meta-analysis of candidate-gene and genome-wide association studies analyzing this relationship and included only white populatio…

MaleProstate cancer polymorphisms of TLR4 aggressive prostate cancer risk meta-analysisSystematic Reviewslcsh:MedicineGenome-wide association studySingle-nucleotide polymorphismBiologyResearch and Analysis MethodsBioinformaticsPolymorphism Single NucleotideProstate cancerGenotypeGeneticsCancer GeneticsmedicineHumansSettore MED/05 - Patologia ClinicaGenetic Predisposition to DiseaseStatistical Methodslcsh:ScienceGenotypingGenetic associationEvolutionary BiologyMultidisciplinarylcsh:RProstatic NeoplasmsBiology and Life SciencesResearch Assessmentmedicine.diseaseImmunity InnateToll-Like Receptor 4Systematic reviewMeta-analysisPhysical SciencesGenetic Polymorphismlcsh:QPopulation GeneticsMathematicsStatistics (Mathematics)Genome-Wide Association StudyResearch ArticleMeta-AnalysisPLoS ONE
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Disruption of the ASTN2 / TRIM32 locus at 9q33.1 is a risk factor in males for Autism Spectrum Disorders, ADHD and other neurodevelopmental phenotypes

2014

Rare copy number variants (CNVs) disrupting ASTN2 or both ASTN2 and TRIM32 have been reported at 9q33.1 by genome-wide studies in a few individuals with neurodevelopmental disorders (NDDs). The vertebrate-specific astrotactins, ASTN2 and its paralog ASTN1, have key roles in glial-guided neuronal migration during brain development. To determine the prevalence of astrotactin mutations and delineate their associated phenotypic spectrum, we screened ASTN2/TRIM32 and ASTN1 (1q25.2) for exonic CNVs in clinical microarray data from 89 985 individuals across 10 sites, including 64 114 NDD subjects. In this clinical dataset, we identified 46 deletions and 12 duplications affecting ASTN2. Deletions o…

MaleReceptors Cell Surface/geneticsAutismChild Development Disorders Pervasive/geneticsGene ExpressionGenome-wide association studyMedical and Health SciencesTripartite Motif ProteinsRisk FactorsReceptors2.1 Biological and endogenous factorsProtein IsoformsNerve Tissue Proteins/geneticsCopy-number variationAetiologyChildGenetics (clinical)Sequence DeletionPediatricGenetics & HeredityGeneticseducation.field_of_studySingle NucleotideArticlesGeneral MedicineExonsBiological SciencesMental HealthPhenotypeAutism spectrum disorderOrgan SpecificityCerebellar cortexChild PreschoolCell SurfaceSpeech delayFemalemedicine.symptomTranscription Initiation SiteAttention Deficit Disorder with Hyperactivity/geneticsChromosomes Human Pair 9HumanPair 9AdultPediatric Research InitiativeChild Development DisordersAdolescentDNA Copy Number VariationsIntellectual and Developmental Disabilities (IDD)Ubiquitin-Protein LigasesPopulationTranscription Factors/geneticsNerve Tissue ProteinsReceptors Cell SurfaceBiologyPolymorphism Single NucleotideChromosomesYoung AdultClinical ResearchProtein Isoforms/geneticsBehavioral and Social ScienceGeneticsmedicineAttention deficit hyperactivity disorderHumansGenetic Predisposition to DiseasePolymorphismPreschooleducationMolecular BiologyGenetic Association StudiesPervasiveGlycoproteinsHuman GenomeNeurosciencesInfant NewbornGlycoproteins/geneticsInfantNewbornmedicine.diseaseBrain DisordersAttention Deficit Disorder with HyperactivityChild Development Disorders PervasiveCase-Control StudiesAutismTranscription Factors
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Genome-wide association study for refractive astigmatism reveals genetic co-determination with spherical equivalent refractive error: the CREAM conso…

2015

To identify genetic variants associated with refractive astigmatism in the general population, meta-analyses of genome-wide association studies were performed for: White Europeans aged at least 25 years (20 cohorts, N = 31,968); Asian subjects aged at least 25 years (7 cohorts, N = 9,295); White Europeans aged <25 years (4 cohorts, N = 5,640); and all independent individuals from the above three samples combined with a sample of Chinese subjects aged <25 years (N = 45,931). Participants were classified as cases with refractive astigmatism if the average cylinder power in their two eyes was at least 1.00 diopter and as controls otherwise. Genome-wide association analysis was carried out for …

MaleRefractive errorBLUE MOUNTAINS EYECORNEAL ASTIGMATISMSpherical equivalentGenome-wide association studyastigmatism; gene; SNPDISEASECohort Studies0302 clinical medicineStatisticsGenetics(clinical)Neural Cell Adhesion MoleculesPOPULATIONGenetics (clinical)Original InvestigationGenetics0303 health scienceseducation.field_of_studyAge FactorsHigh Mobility Group ProteinsMiddle Aged3142 Public health care science environmental and occupational health3. Good healthFemaleOPEN-ANGLE GLAUCOMAAdultGenetic MarkersEXPERIMENTALLY-INDUCED MYOPIAKeratoconusSUSCEPTIBILITY LOCICell Adhesion Molecules NeuronaleducationPopulationNerve Tissue ProteinsAstigmatismBiologyWhite People03 medical and health sciencesAGEAsian PeopleMAJOR LOCUSmedicineGeneticsHumans3125 Otorhinolaryngology ophthalmologyeducation030304 developmental biologyGenetic associationCalcium-Binding ProteinsAstigmatismHeritabilitymedicine.diseaseNONCODING RNAS030221 ophthalmology & optometryGenome-Wide Association Study
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Genetic variants associated with human eye size are distinct from those conferring susceptibility to myopia

2021

Purpose: Emmetropization requires coordinated scaling of the major ocular components, corneal curvature and axial length. This coordination is achieved in part through a shared set of genetic variants that regulate eye size. Poorly coordinated scaling of corneal curvature and axial length results in refractive error. We tested the hypothesis that genetic variants regulating eye size in emmetropic eyes are distinct from those conferring susceptibility to refractive error.Methods: A genome-wide association study (GWAS) for corneal curvature in 22,180 adult emmetropic individuals was performed as a proxy for a GWAS for eye size. A polygenic score created using lead GWAS variants was tested for…

MaleRefractive errorLinkage disequilibriumgenetic structuresLOCIEmmetropiaGenome-wide association studyPRSS56AXIAL LENGTHLinkage Disequilibrium0302 clinical medicineCORNEAL CURVATURECorneaMyopiarefractive errorChild0303 health sciencesHERITABILITYMiddle Agedgenetic correlationAxial Length Eyemedicine.anatomical_structureeye sizeGROWTHFemaleAdultmedicine.medical_specialtyUK BiobankAdolescentBiologyRefraction OcularGenetic correlationPolymorphism Single NucleotideOCULAR COMPONENT DIMENSIONS03 medical and health sciencesYoung AdultOphthalmologymedicineGeneticsHumansGenetic Predisposition to Disease3125 Otorhinolaryngology ophthalmologyGENOME-WIDE ASSOCIATIONMETAANALYSIS030304 developmental biologyAgedmedicine.diseaseeye diseasesGenetic marker030221 ophthalmology & optometryHuman eyesense organsGenome-Wide Association StudyInvestigative Ophthalmology & Visual Science
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XRCC5 as a Risk Gene for Alcohol Dependence : Evidence from a Genome-Wide Gene-Set-Based Analysis and Follow-up Studies in Drosophila and Humans

2015

Genetic factors play as large a role as environmental factors in the etiology of alcohol dependence. Although genome-wide association studies (GWAS) enable systematic searches for loci not hitherto implicated in the etiology of alcohol dependence, many true findings may be missed due to correction for multiple testing. The aim of the present study was to circumvent this limitation by searching for biological system-level differences, and then following up these findings in humans and animals. Gene-set based analysis of GWAS data from 1333 cases and 2168 controls identified 19 significantly associated gene-sets of which five could be replicated in an independent sample. Clustered in these ge…

MaleRiskAdolescentMedizinGenome-wide association studyBiologyPolymorphism Single NucleotideWhite PeopleAnimals Genetically ModifiedRNA interferenceGermanyGenetic variationAnimalsHumansGene silencingGenetic Predisposition to DiseaseKu AutoantigenGeneGenetic associationPharmacologyGeneticsEthanolAlcohol dependenceDNA HelicasesCentral Nervous System DepressantsPhenotypeAlcoholismPsychiatry and Mental healthDrosophila melanogasterFemaleOriginal ArticleFollow-Up StudiesGenome-Wide Association Study
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