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Influence of the serotonin transporter gene-linked polymorphic region on the antidepressant response to fluvoxamine in Japanese depressed patients.

Abstract
The presence of the long (l) variant of the serotonin (5-hydroxytryptamine: 5-HT) transporter gene-linked polymorphic region (5-HTTLPR) is reported to be associated with a more favorable and faster antidepressant effect of selective serotonin reuptake inhibitors in Caucasians. The frequency of the l allele is lower in Japanese than in Caucasians; therefore, the antidepressant effect of fluvoxamine can be not as good in Japanese as in Caucasians. The authors investigated whether 5-HTTLPR was associated with the antidepressant response to fluvoxamine in 66 Japanese patients with major depressive disorder in a protocolized-dosing 6-week study. The short (s) allele frequency was significantly higher in the responsive individuals than in the nonresponsive ones (P = .010). The present study suggests that fluvoxamine is not less effective in depressive patients carrying the s allele than in the ones carrying the l allele and it is not less effective in Japanese than in Caucasians.
AuthorsKeizo Yoshida, Kenichi Ito, Kazuhiro Sato, Hitoshi Takahashi, Mitsuhiro Kamata, Hisashi Higuchi, Tetsuo Shimizu, Kunihiko Itoh, Kazuyuki Inoue, Takehiko Tezuka, Toshio Suzuki, Tadashi Ohkubo, Kazunobu Sugawara, Koichi Otani
JournalProgress in neuro-psychopharmacology & biological psychiatry (Prog Neuropsychopharmacol Biol Psychiatry) Vol. 26 Issue 2 Pg. 383-6 (Feb 2002) ISSN: 0278-5846 [Print] England
PMID11817517 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Antidepressive Agents
  • Carrier Proteins
  • Membrane Glycoproteins
  • Membrane Transport Proteins
  • Nerve Tissue Proteins
  • SLC6A4 protein, human
  • Serotonin Plasma Membrane Transport Proteins
  • Fluvoxamine
Topics
  • Adult
  • Aged
  • Alleles
  • Analysis of Variance
  • Antidepressive Agents (therapeutic use)
  • Carrier Proteins (genetics)
  • Chi-Square Distribution
  • Depressive Disorder, Major (drug therapy, genetics)
  • Female
  • Fluvoxamine (therapeutic use)
  • Gene Frequency (genetics)
  • Genetic Linkage (drug effects)
  • Genotype
  • Humans
  • Japan
  • Male
  • Membrane Glycoproteins (genetics)
  • Membrane Transport Proteins
  • Middle Aged
  • Nerve Tissue Proteins
  • Polymorphism, Genetic (genetics)
  • Serotonin Plasma Membrane Transport Proteins

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