Nucleotide Sequence Variation within the PI3K p85 Alpha Gene Associates with Alcohol Risk Drinking Behaviour in Adolescents
2008

Genetic Variations in the PI3K p85 Alpha Gene and Alcohol Risk in Adolescents

Sample size: 145 publication 10 minutes Evidence: moderate

Author Information

Author(s): Desrivières Sylvane, Krause Kristina, Dyer Anne, Frank Josef, Blomeyer Dorothea, Lathrop Mark, Mann Karl, Banaschewski Tobias, Laucht Manfred, Schumann Gunter

Primary Institution: King's College, London, United Kingdom

Hypothesis

Does the PI3K pathway contribute to patterns of risky alcohol drinking in adolescents?

Conclusion

The study found that specific genetic variations in the PIK3R1 gene are associated with risky alcohol drinking behaviors in male adolescents.

Supporting Evidence

  • Genetic factors significantly contribute to the development of addiction, including alcohol addiction.
  • Association studies have identified several gene variants that might predispose individuals to alcohol dependence.
  • Lifetime prevalence of drunkenness was significantly associated with specific SNPs in male adolescents.

Takeaway

Some kids might drink too much alcohol because of their genes, and this study looked at a specific gene to see if it makes a difference.

Methodology

The study analyzed genetic variations in the PIK3R1 gene in 145 family trios of adolescents and their parents, focusing on SNPs and their association with alcohol consumption patterns.

Potential Biases

Potential biases may arise from the self-reported nature of alcohol consumption data.

Limitations

The sample size was relatively small, which limits the statistical power of the findings.

Participant Demographics

Participants were predominantly European descent adolescents aged 15, with 77 males and 68 females.

Statistical Information

P-Value

0.0019 and 0.0379

Confidence Interval

1.1152 (0.4464-2.7858) for rs706713; 3.3893 (1.5350-7.4836) for rs2302975; 3.0426 (1.0103-9.163) for rs1043526

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0001769

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