GSTT1 and GSTM1 genotypes of the glutathione S-transferase gene are risk factor for CAD independent of smoking
2006

Genetic Factors in Heart Disease Risk

Sample size: 1816 publication 10 minutes Evidence: high

Author Information

Author(s): Khaled K Abu-Amero, Olayan M Al-Boudari, Gamal H Mohamed, Nduna Dzimiri

Primary Institution: King Faisal Specialist Hospital and Research Centre

Hypothesis

The GSTT1 and GSTM1 genotypes are associated with coronary artery disease (CAD) among Arabs.

Conclusion

GSTT1 and GSTM1 null-genotypes are risk factors for CAD independent of genotype-smoking interaction.

Supporting Evidence

  • The study found significant associations between specific genotypes and CAD.
  • Smoking, age, and other health factors were also linked to CAD.

Takeaway

Some people have genes that make them more likely to get heart disease, even if they don't smoke.

Methodology

Genotyping of 1054 CAD patients and 762 controls for GSTT1 and GSTM1 deletion by multiplex polymerase chain reaction.

Potential Biases

Potential bias due to the exclusion of individuals with certain health conditions.

Limitations

The study could not determine Hardy-Weinberg equilibrium due to high consanguinity in the population.

Participant Demographics

1054 CAD patients (642 males, 412 females) and 762 controls (464 males, 298 females), all Saudi Arabs.

Statistical Information

P-Value

<0.001

Confidence Interval

95% C.I. reported for various odds ratios.

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1186/1471-2350-7-38

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