2004
NOTCH4 gene haplotype is associated with schizophrenia in African Americans
Luo X, Klempan TA, Lappalainen J, Rosenheck RA, Charney DS, Erdos J, van Kammen DP, Kranzler HR, Kennedy JL, Gelernter J. NOTCH4 gene haplotype is associated with schizophrenia in African Americans. Biological Psychiatry 2004, 55: 112-117. PMID: 14732589, DOI: 10.1016/s0006-3223(03)00588-2.Peer-Reviewed Original ResearchMeSH KeywordsAllelesBlack or African AmericanChi-Square DistributionCysteineDiagnostic and Statistical Manual of Mental DisordersFemaleGene FrequencyGenotypeGlycineHaplotypesHumansLinkage DisequilibriumMalePolymerase Chain ReactionPolymorphism, Single NucleotideProto-Oncogene ProteinsReceptor, Notch4Receptors, Cell SurfaceReceptors, NotchSchizophreniaThreonineConceptsHealthy control subjectsControl subjectsSingle nucleotide polymorphismsExact testSchizophrenia patientsAfrican AmericansFisher's exact testNOTCH4 locusChi-square testComparison of alleleEuropean-American subjectsPositive linkage disequilibriumAA subjectsPatientsSchizophreniaSpecific markersHaplotype frequenciesT associatesLinkage disequilibriumEA subjectsNOTCH4 geneSubjectsGene haplotypesAmerican subjectsNucleotide polymorphisms
2002
Dopamine Beta‐Hydroxylase (DBH) gene and schizophrenia phenotypic variability: A genetic association study
Yamamoto K, Cubells JF, Gelernter J, Benkelfat C, Lalonde P, Bloom D, Lal S, Labelle A, Turecki G, Rouleau GA, Joober R. Dopamine Beta‐Hydroxylase (DBH) gene and schizophrenia phenotypic variability: A genetic association study. American Journal Of Medical Genetics Part B Neuropsychiatric Genetics 2002, 117B: 33-38. PMID: 12555232, DOI: 10.1002/ajmg.b.10011.Peer-Reviewed Original ResearchConceptsTherapeutic responseDopamine beta-hydroxylase (DBH) geneMean total BPRS scoreBeta-hydroxylase geneGroup of patientsTotal BPRS scoreLow DBH activityNR patientsBPRS scoresNeuroleptic drugsHealthy volunteersPsychotic symptomsSchizophrenic patientsDBH activitySymptom profilesPositive linkage disequilibriumPatientsCocaine-induced paranoiaCausative factorsPhenotypic variabilitySchizophreniaGenetic association studiesGenotype differencesPolymorphismDBH gene