0000000000532589

AUTHOR

Alejandro Arias Vasquez

showing 6 related works from this author

Meta-analysis of genome-wide association studies of attention-deficit/hyperactivity disorder

2010

Contains fulltext : 87688.pdf (Publisher’s version ) (Closed access) OBJECTIVE: Although twin and family studies have shown attention-deficit/hyperactivity disorder (ADHD) to be highly heritable, genetic variants influencing the trait at a genome-wide significant level have yet to be identified. As prior genome-wide association studies (GWAS) have not yielded significant results, we conducted a meta-analysis of existing studies to boost statistical power. METHOD: We used data from four projects: a) the Children's Hospital of Philadelphia (CHOP); b) phase I of the International Multicenter ADHD Genetics project (IMAGE); c) phase II of IMAGE (IMAGE II); and d) the Pfizer-funded study from the…

Malemedicine.medical_specialtyCandidate geneAdolescentMedizinSocial SciencesGenome-wide association studySingle-nucleotide polymorphismPolymorphism Single NucleotideArticleGenomic disorders and inherited multi-system disorders [IGMD 3]03 medical and health sciences0302 clinical medicinePerception and Action [DCN 1]Developmental and Educational PsychologymedicineIMPUTATIONAttention deficit hyperactivity disorderddc:61Humansddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersInternational HapMap ProjectPsychiatryChildGenetic Association Studies030304 developmental biologyGenetic associationMental Health [NCEBP 9]0303 health sciencesCOMPONENTSmedicine.disease3. Good healthPREVALENCEPsychiatry and Mental healthAttention Deficit Disorder with HyperactivityMeta-analysisChild PreschoolFemalePsychologyFunctional Neurogenomics [DCN 2]030217 neurology & neurosurgeryImputation (genetics)Clinical psychologyGenome-Wide Association Study
researchProduct

Genome-wide association scan of quantitative traits for attention deficit hyperactivity disorder identifies novel associations and confirms candidate…

2008

Contains fulltext : 70192.pdf (Publisher’s version ) (Closed access) Attention deficit hyperactivity disorder (ADHD) is a complex condition with environmental and genetic etiologies. Up to this point, research has identified genetic associations with candidate genes from known biological pathways. In order to identify novel ADHD susceptibility genes, 600,000 SNPs were genotyped in 958 ADHD proband-parent trios. After applying data cleaning procedures we examined 429,981 autosomal SNPs in 909 family trios. We generated six quantitative phenotypes from 18 ADHD symptoms to be used in genome-wide association analyses. With the PBAT screening algorithm, we identified 2 SNPs, rs6565113 and rs5526…

MaleCandidate geneGenetics and epigenetic pathways of disease [NCMLS 6]2804 Cellular and Molecular NeuroscienceMedizinGenome-wide association studyNeuroinformatics [DCN 3]Genome2738 Psychiatry and Mental Health0302 clinical medicinePerception and Action [DCN 1]Cluster AnalysisGenetics(clinical)Genetics (clinical)Genetics0303 health sciences10058 Department of Child and Adolescent PsychiatryCadherinsPedigreePsychiatry and Mental healthFemaleFunctional Neurogenomics [DCN 2]CDH13AlgorithmsGenetic Markers2716 Genetics (clinical)GenotypeQuantitative Trait Loci610 Medicine & healthSingle-nucleotide polymorphismBiologyQuantitative trait locusPolymorphism Single NucleotideMental health [NCEBP 9]Genetic determinismGenomic disorders and inherited multi-system disorders [IGMD 3]03 medical and health sciencesCellular and Molecular NeuroscienceCognitive neurosciences [UMCN 3.2]medicineADHDAttention deficit hyperactivity disorderHumansGenetic Predisposition to Diseaseddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersGene030304 developmental biologyProbabilityModels GeneticGenome Humancandidate genefamily-based associationmedicine.diseaseIntronsHaplotypesGenetic defects of metabolism [UMCN 5.1]Attention Deficit Disorder with Hyperactivitygenome-wide association030217 neurology & neurosurgeryGenome-Wide Association StudyAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics
researchProduct

Genome-wide association scan of the time to onset of attention deficit hyperactivity disorder.

2008

Contains fulltext : 70149.pdf (Publisher’s version ) (Closed access) A time-to-onset analysis for family-based samples was performed on the genomewide association (GWAS) data for attention deficit hyperactivity disorder (ADHD) to determine if associations exist with the age at onset of ADHD. The initial dataset consisted of 958 parent-offspring trios that were genotyped on the Perlegen 600,000 SNP array. After data cleaning procedures, 429,981 autosomal SNPs and 930 parent-offspring trios were used found suitable for use and a family-based logrank analysis was performed using that age at first ADHD symptoms as the quantitative trait of interest. No SNP achieved genome-wide significance, and…

MaleCandidate geneGenetics and epigenetic pathways of disease [NCMLS 6]2804 Cellular and Molecular NeuroscienceMedizinGenome-wide association studyNeuroinformatics [DCN 3]Linkage Disequilibrium2738 Psychiatry and Mental Health0302 clinical medicinePerception and Action [DCN 1]Genetics(clinical)Age of OnsetChildGenetics (clinical)Genetics0303 health sciences10058 Department of Child and Adolescent PsychiatryPedigreePsychiatry and Mental healthChild PreschoolFemaleFunctional Neurogenomics [DCN 2]SNP arrayGenetic Markers2716 Genetics (clinical)Sodium-Hydrogen ExchangersAdolescentQuantitative Trait Loci610 Medicine & healthSingle-nucleotide polymorphismBiologyQuantitative trait locusMental health [NCEBP 9]Polymorphism Single NucleotideArticleGenomic disorders and inherited multi-system disorders [IGMD 3]03 medical and health sciencesCellular and Molecular NeuroscienceCognitive neurosciences [UMCN 3.2]medicineAttention deficit hyperactivity disorderSNPHumansGenetic Predisposition to Diseaseddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und Jugendalters030304 developmental biologyProbabilityRetrospective StudiesGenome Humanmedicine.diseaseGenetic defects of metabolism [UMCN 5.1]HaplotypesAttention Deficit Disorder with HyperactivityAge of onset030217 neurology & neurosurgeryGenome-Wide Association Study
researchProduct

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
researchProduct

Genome-wide association scan of attention deficit hyperactivity disorder

2008

Contains fulltext : 70191.pdf (Publisher’s version ) (Closed access) Results of behavioral genetic and molecular genetic studies have converged to suggest that genes substantially contribute to the development of attention deficit/hyperactivity disorder (ADHD), a common disorder with an onset in childhood. Yet, despite numerous linkage and candidate gene studies, strongly consistent and replicable association has eluded detection. To search for ADHD susceptibility genes, we genotyped approximately 600,000 SNPs in 958 ADHD affected family trios. After cleaning the data, we analyzed 438,784 SNPs in 2,803 individuals comprising 909 complete trios using ADHD diagnosis as phenotype. We present t…

Candidate geneLinkage disequilibriumGenetics and epigenetic pathways of disease [NCMLS 6]Medizin2804 Cellular and Molecular NeuroscienceGenome-wide association studyNeuroinformatics [DCN 3]Linkage Disequilibrium2738 Psychiatry and Mental Health0302 clinical medicinePerception and Action [DCN 1]Genetics(clinical)ChildGenetics (clinical)Genetics0303 health sciencesHomozygote10058 Department of Child and Adolescent PsychiatrySNP genotypingPsychiatry and Mental healthChild PreschoolData Interpretation Statistical/dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_beingFunctional Neurogenomics [DCN 2]Algorithms2716 Genetics (clinical)AdolescentSingle-nucleotide polymorphism610 Medicine & healthBiologyMental health [NCEBP 9]Polymorphism Single NucleotideGenetic determinismArticleGenomic disorders and inherited multi-system disorders [IGMD 3]03 medical and health sciencesCellular and Molecular NeuroscienceCognitive neurosciences [UMCN 3.2]SDG 3 - Good Health and Well-beingmedicineSNPAttention deficit hyperactivity disorderHumansddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersAlleles030304 developmental biologyGenome Humanmedicine.diseaseGenetic defects of metabolism [UMCN 5.1]Attention Deficit Disorder with HyperactivityCase-Control Studies030217 neurology & neurosurgeryGenome-Wide Association Study
researchProduct

Harmonization of Neuroticism and Extraversion phenotypes across inventories and cohorts in the Genetics of Personality Consortium:an application of I…

2014

Mega- or meta-analytic studies (e.g. genome-wide association studies) are increasingly used in behavior genetics. An issue in such studies is that phenotypes are often measured by different instruments across study cohorts, requiring harmonization of measures so that more powerful fixed effect meta-analyses can be employed. Within the Genetics of Personality Consortium, we demonstrate for two clinically relevant personality traits, Neuroticism and Extraversion, how Item-Response Theory (IRT) can be applied to map item data from different inventories to the same underlying constructs. Personality item data were analyzed in >160,000 individuals from 23 cohorts across Europe, USA and Australia…

DIMENSIONSDISORDERS515 PsychologyeducationPersonality AssessmentGenome-wide association studiesExtraversion PsychologicalNEO-PI5-FACTOR MODELGeneticsHumansGenetics(clinical)Ecology Evolution Behavior and SystematicsOriginal ResearchNeuroticismMeasurementNeurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7]Models StatisticalOther Research Radboud Institute for Health Sciences [Radboudumc 0]GENOME-WIDE METAANALYSISTEMPERAMENTASSOCIATIONAnxiety Disorders3142 Public health care science environmental and occupational healthMeta-analysisPhenotypeMEASUREMENT INVARIANCECLONINGERSUrological cancers Radboud Institute for Health Sciences [Radboudumc 15]REPLICATIONDevelopmental PsychopathologyItem-Response TheoryConsortiumGenome-Wide Association StudyPersonality
researchProduct