Association between major depressive disorder and the -1438A/G polymorphism of the serotonin 2A receptor gene

Myoung Jin Choi, Heon-Jeong Lee, Hye Jin Lee, Byung-Joo Ham, Ji Hyun Cha, Seung Ho Ryu, Min-Soo Lee

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This study investigated the possible effect of the -1438A/G single-nucleotide polymorphism in the promoter region of the serotonin 2A receptor (5-HTR2A) gene on major depressive disorder (MDD) in a Korean population. This polymorphism was analyzed in 189 patients with MDD and in 148 unrelated healthy controls using a case-control design, which revealed a significant difference in the genotype distributions (χ2 = 10.78, d.f. = 2, p = 0.005). The frequency of the -1438G allele was also much higher in MDD patients than in normal controls (χ2 = 7.20, p = 0.007; OR = 1.52, 95% CI 1.12-2.06). We also found significantly more carriers of the G allele (GG+AG genotypes) in MDD patients than in normal controls (χ 2 = 10.18, p = 0.001; OR = 2.46, 95% CI 1.40-4.32). Our results support the hypothesis that the -1438A/G polymorphism of the promoter region of the 5-HTR2A gene is associated with MDD patients in a Korean population.

Original languageEnglish
Pages (from-to)38-41
Number of pages4
Issue number1
Publication statusPublished - 2004 Feb 6



  • 5-HTR2A
  • Major depressive disorder
  • Polymorphism
  • Promoter

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Neuroscience(all)
  • Psychology(all)

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