Association of monoamine oxidase A (MAOA) polymorphisms and clinical subgroups of major depressive disorders in the Han Chinese population.
It has been proposed that an MAOA abnormality may be an important factor in the development of major depressive disorder (MDD). Various polymorphisms of the MAOA gene have been investigated for possible associations with mood disorders, but results have been inconsistent. The goal of the present study was to investigate whether polymorphisms of the MAOA gene are associated with MDD or alternatively with different clinical subgroups of MDD. A total of 590 Han Chinese subjects in Taiwan (312 controls and 278 MDD patients) were recruited. Among the males, there were no associations with MAOA polymorphisms. Among the females, an association was found between MAOA polymorphisms and severe MDD (P=0.041 for uVNTR and 0.017 for EcoRV (rs1137070), respectively). However, in analyses of haplotype frequencies and multiple logistic regression, MAOA polymorphisms were not associated with either MDD or its subgroups. The results suggest that MAOA polymorphisms do not play a major role in the pathogenesis of MDD or its subgroups. However, a potential role for a minor association with some specific subgroups and with different ethnic samples needs to be explored further.
Huang
San-Yuan
SY
Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, 114, Taiwan, ROC. hsy@ndmctsgh.edu.tw
Lin
Ming-Teng
MT
Lin
Wei-Wen
WW
Huang
Cheng-Chang
CC
Shy
Mee-Jen
MJ
Lu
Ru-Band
RB
D000328:Adult; D000483:Alleles; D044466:Asian People / Q000235:genetics*; D003865:Major Depressive Disorder / Q000175:diagnosis / Q000208:ethnology* / Q000235:genetics* / Q000523:psychology; D005091:Exons / Q000235:genetics; D005260:Female; D005787:Gene Frequency / Q000235:genetics; D005828:Genetics, Population; D055106:Genome-Wide Association Study; D005838:Genotype; D006239:Haplotypes / Q000235:genetics; D006801:Humans; D008297:Male; D008875:Middle Aged; D018598:Minisatellite Repeats / Q000235:genetics; D008995:Monoamine Oxidase / Q000235:genetics*; D011110:Polymorphism, Genetic / Q000235:genetics*; D012150:Polymorphism, Restriction Fragment Length / Q000235:genetics; D011401:Promoter Regions, Genetic / Q000235:genetics; D012016:Reference Values; D012737:Sex Factors; D013624:Taiwan
D008995:Monoamine Oxidase