rs9825563

This is a upstream gene variant variant in the DRD3 gene.

Research that mentions this SNP (2)

The relationship between polymorphisms of BDNFOS and BDNF genes and heroin addiction in the Han Chinese population
ReviewTianbo Jin et al.(2016)· The Journal of Gene Medicine

This review examines neurogenetic and neuropharmacological correlates of opioid use disorder (OUD) with emphasis on ancestry-specific genetic risk profiles. The paper identifies multiple genes involved in the reward pathway (DRD2, DRD3, DRD4, OPRM1, OPRK1, OPRD1, BDNF, NRXN3, COMT, SLC6A4, KCNC1, KCNG2) and their variants associated with OUD susceptibility and treatment response across different ethnic populations, highlighting critical research disparities where African Americans and Hispanics have been underrepresented in genetic association studies.

Traits studied:Alcohol DependenceCocaine AddictionHeroin AddictionHeroin DependenceMethamphetamine DependenceMitochondrial DysfunctionNeonatal Abstinence SyndromeOpioid AddictionOpioid DependenceOpioid Use DisorderOxidative StressPain SensitivitySubstance Use Disorder
SNPs in dopamine D2 receptor gene (DRD2) and norepinephrine transporter gene (NET) are associated with continuous performance task (CPT) phenotypes in ADHD children and their families
AssociationN=364Kollins SH et al.(2008)· American Journal of Medical Genetics Part B: Neuropsychiatric Genetics

Haplotype-tagging SNP analysis in 364 individuals from 152 ADHD families identified significant associations between commission errors and SNPs in the DRD2 gene (rs2075654, rs1079596) and between reaction time variability and a SNP in the NET gene (rs3785155). These findings suggest that commission errors and reaction time variability are valid ADHD endophenotypes linked to dopaminergic and noradrenergic pathways.

Traits studied:ADHDCommission errors (Continuous Performance Task)Detectability (CPT)Hit reaction timeHit reaction time standard errorReaction time variability (Continuous Performance Task)

About DRD3

This gene encodes the D3 subtype of the five (D1-D5) dopamine receptors. The activity of the D3 subtype receptor is mediated by G proteins which inhibit adenylyl cyclase. This receptor is localized to the limbic areas of the brain, which are associated with cognitive, emotional, and endocrine functions. Genetic variation in this gene may be associated with susceptibility to hereditary essential tremor 1. Alternative splicing of this gene results in transcript variants encoding different isoforms, although some variants may be subject to nonsense-mediated decay (NMD). [provided by RefSeq, Jul 2008]

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Gene information from NCBI Gene. Variant classifications from ClinVar.

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