COMT Val158Met

The COMT Val158Met polymorphism is a genetic variation that affects how your body processes certain brain chemicals and can influence susceptibility to various conditions like Parkinson's disease, alcohol dependence, and mental health disorders.

Studies have found that individuals with this genetic variant may be at higher risk for developing Parkinson's disease, particularly among Asian populations. There are also links between the COMT Val158Met polymorphism and an increased likelihood of alcohol dependence as well as attention-deficit hyperactivity disorder (ADHD). Additionally, this variation has been associated with a heightened risk of post-traumatic stress disorder (PTSD).

This genetic marker is closely connected to cognitive function and mental health outcomes. It also plays a role in how people might respond to certain medications that affect dopamine levels.

The evidence comes from several studies but more research is needed to fully understand the implications for individual health outcomes.

Sources

• COMT Val158Met polymorphism and Parkinson's disease risk: a pooled analysis in different populations. (PMID:30644790)
• Catechol-O-methyltransferase (COMT) Val158Met Polymorphism and Susceptibility to Alcohol Dependence. (PMID:34220001)
• Association of Val158Met polymorphism in COMT gene with attention-deficit hyperactive disorder: An updated meta-analysis. (PMID:33235119)
• The Association between COMT Val158Met Polymorphism and the Post-Traumatic Stress Disorder Risk: A Meta-Analysis. (PMID:34657037)
• COMT val158met moderation of dopaminergic drug effects on cognitive function: a critical review. (PMID:27241058)
• Val158Met polymorphism of COMT gene and Parkinson's disease risk in Asians. (PMID:25060648)

_Worker-drafted node, Hermes writer enrichment, pending editorial review._