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J Affect Disord. 2008 Feb;106(1-2):169-72. Epub 2007 Aug 14.

Association of a dopamine beta-hydroxylase gene variant with depression in elderly women possibly reflecting noradrenergic dysfunction.

Author information

1
Research Institute of Biological Psychiatry, Sct. Hans Hospital, Roskilde, Copenhagen University, Denmark.

Abstract

BACKGROUND:

Depression has a multifactorial etiology which involves genetic factors and comorbid diseases.

METHODS:

A cross-sectional sample of 1371 elderly women (mean age=69.2 years) was examined. Detailed information on their health was obtained. Cognitive functions were assessed by the Short Blessed Test and the Animal Naming Task. A 19 bp insertion/deletion polymorphism in the dopamine beta-hydroxylase (DBH) gene, the apolipoprotein (APOE) epsilon2/epsilon3/epsilon4 variation and 5-HTTLPR in the serotonin transporter gene were genotyped.

RESULTS:

Depression was univariately associated with homozygosity for the DBH gene 19 bp deletion allele (odds ratio [OR]=1.96, 95% confidence intervals [95% CI]=1.17-3.29, p=0.01), family history of depression (OR=3.86, 95% CI=1.85-8.06, p=0.0003), a composite measure of cardiovascular diseases (OR=1.96, 95% CI=1.11-3.47, p=0.02), cognitive impairment assessed by the Short Blessed Test (OR=3.88, 95% CI=1.29-11.64, p=0.02) and performance on the Animal Naming Task (OR=0.74, 95% CI=0.59-0.93, p=0.01). The strength of the association of DBH genotype with depression essentially remained unchanged after correction for other variables in a multivariate model. This association may reflect noradrenaline dysfunction in the brain.

PMID:
17698206
DOI:
10.1016/j.jad.2007.06.010
[Indexed for MEDLINE]

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