AI Article Synopsis
- - The study explores the connection between the CYP2D6*4 genetic variant, which affects serotonin metabolism, and the risk of depression or anxiety in elderly individuals.
- - Researchers conducted a cross-sectional analysis in a population of individuals aged 55 and older, using logistic regression to evaluate the relationship between the CYP2D6 genotype and mental health disorders.
- - Findings indicated no significant association between the CYP2D6*4 genotype and the risk of major depression, minor depression, or anxiety disorders in older adults.
Article Abstract
Introduction: 5-methoxytryptamine (5-MT), a precursor of serotonin, is considered to be an endogenous substrate of cytochrome P450 2D6 (CYP2D6). Homozygous carriers of the variant allele CYP2D6*4 lack CYP2D6 enzyme activity. Relative to extensive metabolizers, these poor metabolizers may have lower baseline serotonin concentrations in various brain regions, and may be more prone to depression or anxiety.
Aim: To test whether the CYP2D6*4/*4 genotype is associated with a predisposition to depression or anxiety disorders in the elderly.
Materials & Methods: We conducted a cross-sectional study within the Rotterdam Study, a population-based cohort study, among persons aged 55 years or older, who were screened for depression and anxiety disorders at two consecutive examination rounds. Logistic regression was used to analyze the association between the CYP2D6*4 polymorphism and the risk of depression or anxiety disorders.
Results: The risk of major depression in CYP2D6*4/*4 was not significantly different from extensive metabolizers (OR = 0.85; 95% CI: 0.36-2.00; p = 0.72). Neither did we find an association between CYP2D6 genotype and minor depression (OR = 1.56; 95% CI: 0.69-3.52; p = 0.28). No increased risk of anxiety disorders was found (OR = 1.19; 95% CI: 0.68-2.09; p = 0.55).
Conclusion: Variation in the CYP2D6 gene is not related to a predisposition to depression or anxiety disorders in the elderly.
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| http://dx.doi.org/10.2217/pgs.09.9 | DOI Listing |
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