Association study of dopamine transporter gene and schizophrenia in Korean population using multiple single nucleotide polymorphism markers

Progress in Neuro-psychopharmacology & Biological Psychiatry
Seong Hoon JeongYong Sik Kim

Abstract

Inherited or acquired dysfunction of the dopamine system is believed to underlie the core symptoms of schizophrenia, and there are some evidences that dopamine transporter activity may be altered in schizophrenic patients. Therefore, dopamine transporter gene (DAT1) has been traditionally considered a probable candidate gene for the association study of schizophrenia. Until now, association studies of the dopamine transporter gene (DAT1) with schizophrenia have yielded largely negative results. However, these results cannot be regarded as conclusive in that they were all obtained from just a single marker, that is, 3' untranslated region variable number of tandem repeat (VNTR). We have therefore tried to find other single nucleotide polymorphisms (SNPs) in DAT1 gene and to use them as additional markers for the association study of schizophrenia. Searching for the SNPs had been done with 50 Korean schizophrenic patients. DNA sequences encompassing the whole exon and flanking exon-intron junctions were amplified and searched for the presence of SNPs. Total of five SNPs were found. Among these, three SNPs (1215A>G, 1398C>T, IVS11+14G>A) as well as the 3' untranslated region VNTR were selected as the markers to be genotyped. The a...Continue Reading

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Citations

Jul 17, 2007·Schizophrenia Bulletin·Michael E TalkowskiVishwajit L Nimgaonkar
Aug 24, 2019·Journal of Molecular Neuroscience : MN·Feng-Ling XuBao-Jie Wang
Sep 1, 2010·International Journal of Psychiatry in Clinical Practice·Chi-Un PaeAlessandro Serretti

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