Search results for "Universität"

showing 10 items of 96 documents

Differential dopamine receptor D4 allele association with ADHD dependent of proband season of birth

2008

Contains fulltext : 70196.pdf (Publisher’s version ) (Closed access) Season of birth (SOB) has been associated with attention deficit hyperactivity disorder (ADHD) in two existing studies. One further study reported an interaction between SOB and genotypes of the dopamine D4 receptor (DRD4) gene. It is important that these findings are further investigated to confirm or refute the findings. In this study, we investigated the SOB association with ADHD in four independent samples collected for molecular genetic studies of ADHD and found a small but significant increase in summer births compared to a large population control dataset. We also observed a significant association with the 7-repeat…

MaleProbandLinkage disequilibriumSeason of birthGenetics and epigenetic pathways of disease [NCMLS 6]MedizinPhysiologyNeuroinformatics [DCN 3]Mental health [NCEBP 9]Linkage DisequilibriumGenomic disorders and inherited multi-system disorders [IGMD 3]03 medical and health sciencesCellular and Molecular Neuroscience0302 clinical medicineCognitive neurosciences [UMCN 3.2]mental disordersmedicineDopamine receptor D4Perception and Action [DCN 1]HumansAttention deficit hyperactivity disorderddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersAlleleGene–environment interactionChildAllelesGenetics (clinical)biologyReceptors Dopamine D4Parturitionmedicine.disease030227 psychiatry3. Good healthPsychiatry and Mental healthVariable number tandem repeatGenetic defects of metabolism [UMCN 5.1]Attention Deficit Disorder with HyperactivityChild Preschoolbiology.proteinFemaleSeasonsFunctional Neurogenomics [DCN 2]030217 neurology & neurosurgery
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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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Genetic analysis of reaction time variability: room for improvement?

2013

Background. Increased reaction time variability (RTV) on cognitive tasks requiring a speeded response is characteristic of several psychiatric disorders. In attention deficit hyperactivity disorder (ADHD), the association with RT is strong phenotypically and genetically, yet high RTV is not a stable impairment but shows ADHD-sensitive improvement under certain conditions, such as those with rewards. The state regulation theory proposed that the RTV difference score, which captures change from baseline to a rewarded or fast condition, specifically measures ‘state regulation’. By contrast, the interpretation of RTV baseline (slow, unrewarded) scores is debated. We aimed to investigate directl…

Maleevent rateAdolescentDEFICIT HYPERACTIVITY DISORDERTWINS EARLY DEVELOPMENTMedizinTwinsSocial Sciences610 Medicine & health3202 Applied PsychologyBEHAVIOR PROBLEMS2738 Psychiatry and Mental HealthrewardsReaction TimeTwins Dizygoticddc:61ADHDHumansddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersChildModels GeneticATTENTION-DEFICIT/HYPERACTIVITY DISORDEROriginal ArticlesTwins Monozygotic10058 Department of Child and Adolescent PsychiatryPERFORMANCEInhibition PsychologicalPhenotypereaction time variabilityAttention Deficit Disorder with HyperactivityCONDUCT DISORDERCase-Control StudiesRELIABILITYINTRASUBJECT VARIABILITYFemalegenetic effectsCRITERION VALIDITYPsychological Medicine
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Candidate genetic pathways for attention-deficit/hyperactivity disorder (ADHD) show association to hyperactive/impulsive symptoms in children with AD…

2013

Item does not contain fulltext OBJECTIVE: Because multiple genes with small effect sizes are assumed to play a role in attention-deficit/hyperactivity disorder (ADHD) etiology, considering multiple variants within the same analysis likely increases the total explained phenotypic variance, thereby boosting the power of genetic studies. This study investigated whether pathway-based analysis could bring scientists closer to unraveling the biology of ADHD. METHOD: The pathway was described as a predefined gene selection based on a well-established database or literature data. Common genetic variants in pathways involved in dopamine/norepinephrine and serotonin neurotransmission and genes involv…

Malegenetic pathwaysMedizinSocial SciencesGenome-wide association studyDCN PAC - Perception action and controlSeverity of Illness Index/dk/atira/pure/sustainabledevelopmentgoals/clean_water_and_sanitationneuritic outgrowth2738 Psychiatry and Mental HealthDOPAMINE0302 clinical medicineDevelopmental and Educational PsychologyIsraelChildQUANTITATIVE TRAITS10058 Department of Child and Adolescent PsychiatryGenomic disorders and inherited multi-system disorders [DCN PAC - Perception action and control IGMD 3]EuropePsychiatry and Mental healthattention-deficit/hyperactivity disorder symptomsPhenotypeChild PreschoolFemalemedicine.symptomPsychologySDG 6 - Clean Water and Sanitationmedicine.drugClinical psychologymedicine.medical_specialtyDIAGNOSTIC-APPROACHAdolescentGenotypeLARGE MULTICENTER ADHDIDENTIFIES ASSOCIATIONDEFICIT HYPERACTIVITY DISORDERDCN MP - Plasticity and memoryneurotransmitter systems610 Medicine & healthQuantitative trait locusHyperkinesisImpulsivityMental health [NCEBP 9]Genomic disorders and inherited multi-system disorders DCN MP - Plasticity and memory [IGMD 3]03 medical and health sciencesDopamineRating scalemedicineCriterion validityddc:61Attention deficit hyperactivity disorderHumansddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersDCN PAC - Perception action and control NCEBP 9 - Mental healthGENOME-WIDE ASSOCIATIONNITRIC-OXIDE SYNTHASEPsychiatryGenetic Association StudiesMETAANALYSISPsychiatric Status Rating Scales3204 Developmental and Educational Psychologymedicine.disease030227 psychiatryAttention Deficit Disorder with HyperactivityImpulsive BehaviorEtiologyCRITERION VALIDITY030217 neurology & neurosurgery
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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
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DSM-IV Combined Type ADHD Shows Familial Association With Sibling Trait Scores

2008

Contains fulltext : 69060.pdf (Publisher’s version ) (Closed access) Attention deficit hyperactivity disorder (ADHD) is a discrete clinical syndrome characterized by the triad of inattention, hyperactivity, and impulsivity in the context of marked impairments. Molecular genetic studies have been successful in identifying genetic variants associated with ADHD, particularly with DSM-IV inattentive and combined subtypes. Quantitative trait locus (QTL) approaches to linkage and association mapping have yet to be widely used in ADHD research, although twin studies investigating individual differences suggest that genetic liability for ADHD is continuously distributed throughout the population, u…

Malequantitative geneticsGenetics and epigenetic pathways of disease [NCMLS 6]Genetic Linkageattention deficit hyperactivity disorder (ADHD)GENOMEWIDE SCANMedizin2804 Cellular and Molecular NeuroscienceNeuroinformatics [DCN 3]MULTIPLE-REGRESSION ANALYSIS2738 Psychiatry and Mental Health0302 clinical medicineDIFFICULTIES QUESTIONNAIREDEFICIT-HYPERACTIVITY DISORDERTwins DizygoticPerception and Action [DCN 1]Genetics(clinical)DF analysisAssociation mappingGenetics (clinical)linkage studyGeneticseducation.field_of_studyATTENTION-DEFICIT/HYPERACTIVITY DISORDERDOPAMINE TRANSPORTER GENE10058 Department of Child and Adolescent PsychiatryDiagnostic and Statistical Manual of Mental DisordersPsychiatry and Mental healthCHILD-BEHAVIOR CHECKLISTConduct disorderRegression AnalysisFemalemedicine.symptomFunctional Neurogenomics [DCN 2]Clinical psychology2716 Genetics (clinical)Quantitative Trait LociPopulation610 Medicine & healthQuantitative trait locusBiologyImpulsivityMental health [NCEBP 9]behavioral disciplines and activitiesINDIVIDUAL-DIFFERENCESInterviews as TopicGenomic disorders and inherited multi-system disorders [IGMD 3]quantitative trait locus (QTL)03 medical and health sciencesCellular and Molecular NeuroscienceCognitive neurosciences [UMCN 3.2]mental disordersmedicineHumansSibling RelationsAttention deficit hyperactivity disorderFamilyGenetic Predisposition to Diseaseddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersSiblingeducationTWIN DATAmedicine.diseaseTwin study030227 psychiatryGenetic defects of metabolism [UMCN 5.1]Attention Deficit Disorder with HyperactivityCONDUCT DISORDER030217 neurology & neurosurgeryAmerican Journal of Medical Genetics. Part B: Neuropsychiatric Genetics
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Genetic relationship between five psychiatric disorders estimated from genome-wide SNPs

2013

AM Vicente - Cross-Disorder Group of the Psychiatric Genomics Consortium Most psychiatric disorders are moderately to highly heritable. The degree to which genetic variation is unique to individual disorders or shared across disorders is unclear. To examine shared genetic etiology, we use genome-wide genotype data from the Psychiatric Genomics Consortium (PGC) for cases and controls in schizophrenia, bipolar disorder, major depressive disorder, autism spectrum disorders (ASD) and attention-deficit/hyperactivity disorder (ADHD). We apply univariate and bivariate methods for the estimation of genetic variation within and covariation between disorders. SNPs explained 17-29% of the variance in …

Netherlands Twin Register (NTR)MedizinInheritance PatternsSocial SciencesAUTISM SPECTRUM DISORDERSnosologyheritabilityCOMMON SNPS0302 clinical medicineCrohn DiseaseSCHIZOPHRENIAChildPsychiatric geneticsGenetics & HeredityMAJOR DEPRESSIVE DISORDERRISK0303 health sciencesATTENTION-DEFICIT/HYPERACTIVITY DISORDER120 000 Neuronal CoherenceMental DisordersVariantsBIPOLAR DISORDERASSOCIATIONGenomic disorders and inherited multi-system disorders [DCN PAC - Perception action and control IGMD 3]Psychiatric DisordersCROHNS-DISEASE3. Good healthSchizophreniagenetic association studyMedical geneticsMajor depressive disorderSNPsAdultmedicine.medical_specialtygenetic etiologymedical geneticsDEFICIT HYPERACTIVITY DISORDERBiologyPolymorphism Single Nucleotidebehavioral disciplines and activitiesArticleGenomic disorders and inherited multi-system disorders DCN MP - Plasticity and memory [IGMD 3]HeritabilityGenetic Heterogeneity03 medical and health sciencesPrevalence of mental disordersmental disorders/dk/atira/pure/keywords/cohort_studies/netherlands_twin_register_ntr_[SDV.BBM] Life Sciences [q-bio]/Biochemistry Molecular BiologyGeneticsmedicineddc:61HumansAttention deficit hyperactivity disorderGenetic Predisposition to Disease[SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular BiologyDCN 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 JugendaltersBipolar disorderPsychiatry030304 developmental biologyDepressive Disorder MajorGenome HumanGenetic heterogeneitymedicine.diseaseschizophreniaAttention Deficit Disorder with HyperactivityChild Development Disorders PervasivePerturbações do Desenvolvimento Infantil e Saúde Mental030217 neurology & neurosurgeryGenome-Wide Association Study
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Parent of origin effects in attention/deficit hyperactivity disorder (ADHD): analysis of data from the international multicenter ADHD genetics (IMAGE…

2008

Contains fulltext : 71540.pdf (Publisher’s version ) (Closed access) There are conflicting reports suggesting that the parental origin of transmitted risk alleles may play a role in the etiology of attention deficit/hyperactivity disorder (ADHD). A recent report by Hawi and colleagues observed a generalized paternal over-transmission of alleles associated with ADHD. This was not replicated in more recent studies. Using data from a large multicenter study we examined the overall and gene-specific parent of origin effect in 554 independent SNPs across 47 genes. Transmission disequilibrium and explicit parent of origin test were performed using PLINK. Overall parent of origin effect was tested…

ParentsCandidate geneGenetics and epigenetic pathways of disease [NCMLS 6]2804 Cellular and Molecular NeuroscienceMedizinNeuroinformatics [DCN 3]Linkage Disequilibrium2738 Psychiatry and Mental Health0302 clinical medicineRisk FactorsPerception and Action [DCN 1]Genetics(clinical)Genetics (clinical)0303 health sciencesTPH210058 Department of Child and Adolescent PsychiatryPsychiatry and Mental healthData Interpretation StatisticalFunctional Neurogenomics [DCN 2]Clinical psychologyGenetic Markers2716 Genetics (clinical)Single-nucleotide polymorphism610 Medicine & healthMental health [NCEBP 9]Polymorphism Single NucleotideGenetic determinismGenomic disorders and inherited multi-system disorders [IGMD 3]Molecular epidemiology [NCEBP 1]03 medical and health sciencesCellular and Molecular NeuroscienceCognitive neurosciences [UMCN 3.2]Translational research [ONCOL 3]medicineAttention deficit hyperactivity disorderHumansFamilyGenetic Predisposition to Diseaseddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersAlleleAlleles030304 developmental biologyChi-Square DistributionEndocrinology and reproduction [UMCN 5.2]business.industrymedicine.diseaseGenetic defects of metabolism [UMCN 5.1]Multicenter studyAttention Deficit Disorder with HyperactivityEtiologybusiness030217 neurology & neurosurgeryAmerican journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics
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Intelligence in DSM-IV combined type attention-deficit/hyperactivity disorder is not predicted by either dopamine receptor/transporter genes or other…

2008

Contains fulltext : 69677.pdf (Publisher’s version ) (Closed access) A major goal of genetic studies of attention deficit hyperactivity disorder (ADHD) is to identify individual characteristics that might help segregate the disorder's inherent heterogeneity. [Mill et al. (2006); Arch Ger Psychiatry 63:462-469] recently reported a potentially important association between two dopamine-related risk polymorphisms (DRD4 variable number tandem repeat (VNTR) in exon 3 and DAT1 VNTR in the 3' UTR) and lowered IQ in ADHD. The objective of the current study was to replicate the [Mill et al. (2006); Arch Ger Psychiatry 63:462-469] findings in a clinical sample and to extend the analysis to a large ra…

ProbandMaleGenetics and epigenetic pathways of disease [NCMLS 6]Intelligence2804 Cellular and Molecular NeuroscienceMedizinNeuroinformatics [DCN 3]Receptors DopamineCohort Studies2738 Psychiatry and Mental Health0302 clinical medicineRisk FactorsPerception and Action [DCN 1]MedicineGenetics(clinical)ChildGenetics (clinical)10058 Department of Child and Adolescent Psychiatry3. Good healthVariable number tandem repeatPsychiatry and Mental healthChild PreschoolFemaleFunctional Neurogenomics [DCN 2]Clinical psychology2716 Genetics (clinical)AdolescentGenotypeSingle-nucleotide polymorphism610 Medicine & healthMental health [NCEBP 9]Genomic disorders and inherited multi-system disorders [IGMD 3]03 medical and health sciencesCellular and Molecular NeuroscienceCognitive neurosciences [UMCN 3.2]mental disordersAttention deficit hyperactivity disorderHumansGenetic Predisposition to Diseaseddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersAlleleRisk factorAssociation (psychology)AllelesDopamine Plasma Membrane Transport Proteinsbusiness.industrymedicine.disease030227 psychiatryGenetic defects of metabolism [UMCN 5.1]Genetic markerAttention Deficit Disorder with Hyperactivitybusiness030217 neurology & neurosurgery
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Genetic heterogeneity in ADHD: DAT1 gene only affects probands without CD

2008

Contains fulltext : 70183.pdf (Publisher’s version ) (Closed access) Previous studies have found heterogeneous association between DAT1-3'-UTR-VNTR and attention deficit hyperactivity disorder (ADHD). Various proportions of conduct disorder (CD) comorbidity in their ADHD samples may partially explain the observational discrepancies. Evidence for this comes from family and twin studies which found ADHD probands with CD (ADHD + CD) are genetically different from those without CD (ADHD - CD). Genotypes of 20 DAT1 markers were analyzed in 576 trios, consisting of 141 ADHD + CD and 435 ADHD - CD. In addition to the classical TDT test, a specific genetic heterogeneity test was performed to identi…

ProbandMaleLinkage disequilibriumGenetics and epigenetic pathways of disease [NCMLS 6]2804 Cellular and Molecular NeuroscienceMedizinComorbidityNeuroinformatics [DCN 3]Linkage Disequilibrium2738 Psychiatry and Mental Health0302 clinical medicineGene FrequencyPerception and Action [DCN 1]Genetics(clinical)ChildGenetics (clinical)GeneticsIncidence10058 Department of Child and Adolescent PsychiatryEuropePsychiatry and Mental healthConduct disorder/dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_beingFemaleFunctional Neurogenomics [DCN 2]Conduct DisorderGenetic Markers2716 Genetics (clinical)GenotypeSingle-nucleotide polymorphism610 Medicine & healthBiologyMental health [NCEBP 9]Polymorphism Single Nucleotidebehavioral disciplines and activitiesGenomic disorders and inherited multi-system disorders [IGMD 3]03 medical and health sciencesGenetic HeterogeneityCellular and Molecular NeuroscienceCognitive neurosciences [UMCN 3.2]SDG 3 - Good Health and Well-beingmental disordersmedicineAttention deficit hyperactivity disorderHumansddc:610Medizinische Fakultät » Universitätsklinikum Essen » LVR-Klinikum Essen » Klinik für Psychiatrie Psychosomatik und Psychotherapie des Kindes- und JugendaltersAlleleAllelesDopamine Plasma Membrane Transport ProteinsChi-Square DistributionGenetic heterogeneitymedicine.diseaseTwin study030227 psychiatryGenetic defects of metabolism [UMCN 5.1]HaplotypesAttention Deficit Disorder with Hyperactivity030217 neurology & neurosurgery
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