2006
C957T polymorphism of the dopamine D2 receptor gene modulates the effect of nicotine on working memory performance and cortical processing efficiency
Jacobsen LK, Pugh KR, Mencl WE, Gelernter J. C957T polymorphism of the dopamine D2 receptor gene modulates the effect of nicotine on working memory performance and cortical processing efficiency. Psychopharmacology 2006, 188: 530-540. PMID: 16896957, DOI: 10.1007/s00213-006-0469-1.Peer-Reviewed Original ResearchConceptsMemory performanceEffects of nicotineBrain regionsBrain functionFunctional magnetic resonanceCortical processing efficiencyRange of behavioralC957T polymorphismProcessing efficiencyPhonological rehearsalMemory taskMemory loadBrain responsesPerformance accuracyC957TMemoryBehavioral effectsNicotine administrationDopamine D2 receptor geneConclusionsThese findingsTobacco dependenceIndividual variationIndividual responsesTaskPlacebo patch
2000
Family‐Based study of DRD2 alleles in alcohol and drug dependence
Blomqvist O, Gelernter J, Kranzler H. Family‐Based study of DRD2 alleles in alcohol and drug dependence. American Journal Of Medical Genetics 2000, 96: 659-664. PMID: 11054774, DOI: 10.1002/1096-8628(20001009)96:5<659::aid-ajmg12>3.0.co;2-g.Peer-Reviewed Original ResearchConceptsCase-control studyDrug dependenceAlcohol dependenceFamily-based studySubstance dependenceRecent family-based studyNumerous case-control studiesDSM-IV criteriaDopamine D2 receptor geneDRD2 allelesPresent studyD2 receptor geneDSM-IIIVariant allelesTransmission disequilibrium testConflicting resultsReceptor geneNegative resultsPositive associationEuropean AmericansTaqI AEuropean ancestryLinkage disequilibriumDisequilibrium testSmall nuclear families