Associations among the NEO Personality Inventory, Revised and the serotonin transporter gene-linked polymorphic region in elders: effects of depression and gender.

Published

Journal Article

OBJECTIVE: The short variant of the serotonin transporter gene-linked functional polymorphic region (5-HTTLPR) has been associated with personality traits related to anxiety, hostility, and depression. We attempted to replicate findings suggesting a positive relation between the short allele variant of 5-HTTLPR and Neuroticism, and a negative association between the short allele variant and Agreeableness. METHODS: Participants in the present study were 103 geriatric depressed patients and 99 non-depressed age matched controls. Depression status and gender were examined as potential modifiers of the association between 5-HTTLPR and personality. RESULTS: Neuroticism was associated with allele frequency such that individuals with the short variant of the allele (ss or sl, group S) were significantly lower on Neuroticism ( P<0.04) compared with individuals with the long allele variant (group L), a pattern opposite to that of previous reports. The association did not vary by clinical group (depressed or controls) but was conditional on gender ( P<0.01): the mean Neuroticism for males in group S was 48.2, whereas the mean Neuroticism for males in group L was 55.9; and the mean Neuroticism for females did not differ by allele group. In the total sample, Agreeableness was not associated with allele frequency; however, there was a significant allele groupxclinical groupxgender interaction ( P<0.01). CONCLUSIONS: The present findings failed to replicate prior work suggesting that the short variant of the 5-HTTLPR allele is associated with higher Neuroticism and lower Agreeableness.

Full Text

Duke Authors

Cited Authors

  • Brummett, BH; Siegler, IC; McQuoid, DR; Svenson, IK; Marchuk, DA; Steffens, DC

Published Date

  • March 2003

Published In

Volume / Issue

  • 13 / 1

Start / End Page

  • 13 - 18

PubMed ID

  • 12605095

Pubmed Central ID

  • 12605095

Electronic International Standard Serial Number (EISSN)

  • 1473-5873

International Standard Serial Number (ISSN)

  • 0955-8829

Digital Object Identifier (DOI)

  • 10.1097/01.ypg.0000051093.88669.85

Language

  • eng