Serotonin Gene and Suicide Attempts
Author Information
Author(s): Danuta Wasserman, Thomas Geijer, Marcus Sokolowski, Vsevolod Rozanov, Jerzy Wasserman
Primary Institution: Karolinska Institute
Hypothesis
Is the serotonin 1A receptor C(-1019)G polymorphism associated with suicide attempts?
Conclusion
The study found no general association between the rs6295 polymorphism and suicide attempts, but suggested a potential link in individuals with high exposure to traumatic life events.
Supporting Evidence
- The study analyzed 272 triplet families of suicide attempters.
- No significant overtransmission of the G-allele was found in the total sample.
- A trend for overtransmission of the G-allele was observed in a sub-sample with high levels of traumatic life events.
Takeaway
The study looked at a gene related to serotonin and its possible link to suicide attempts, finding that it might matter more for people who have experienced a lot of stress or trauma.
Methodology
The study used the transmission disequilibrium test (TDT) to analyze the G-allele of the 5-HTR1A C(-1019)G polymorphism in 272 suicide attempter families.
Potential Biases
Potential population stratification could influence the results.
Limitations
The study had limited statistical power, particularly in sub-samples, which may affect the reliability of the findings.
Participant Demographics
Participants were Caucasian, with an average age of 24.3 years; 45.2% were female and 54.8% male.
Statistical Information
P-Value
0.1460
Statistical Significance
p = 0.0630
Digital Object Identifier (DOI)
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