Polymorphisms of DNA repair genes XRCC1 and XPD and risk of primary open angle glaucoma (POAG)
2006

DNA Repair Gene Polymorphisms and Glaucoma Risk

Sample size: 265 publication Evidence: low

Author Information

Author(s): Güven Mehmet, Ünal Mustafa, Batar Bahadir, Eroğlu Ebru, Devranoğlu Kazim, Tamçelik Nevbahar, Uçar Didar, Sarici Ahmet

Primary Institution: University of Istanbul

Hypothesis

The study aimed to determine the frequency of polymorphisms in DNA repair genes XRCC1 and XPD in Turkish patients with primary open angle glaucoma (POAG) and evaluate their association with POAG development.

Conclusion

Polymorphisms in XPD codon 751 and XRCC1 codon 399 were not associated with risk of POAG in a sample of Turkish patients.

Supporting Evidence

  • The study included 144 cases with POAG and 121 healthy controls.
  • No significant difference was observed in the genotype distribution between POAG patients and controls.
  • Allele frequencies were not statistically different between the groups.

Takeaway

The study looked at whether certain gene changes affect the risk of developing glaucoma, but found no link between these gene changes and the disease.

Methodology

The study used polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) to analyze gene polymorphisms in patients with POAG and healthy controls.

Limitations

The sample sizes of the groups were not sufficiently large to detect any true differences.

Participant Demographics

The study included 144 patients with POAG and 121 disease-free controls, with a mean age of 61.3 years for patients and 59.1 years for controls.

Statistical Information

P-Value

p=0.46 for XRCC1 and p=0.88 for XPD

Confidence Interval

95% CI:0.42-1.43 for XRCC1 and 95% CI:0.50-1.67 for XPD

Statistical Significance

p>0.05

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