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A codon 31ser-arg polymorphism of the WAF-1/CIP-1/p21/tumour suppressor gene in Chinese primary open-angle glaucoma

Fuu-Jen Tsai1, Hui-Ju Lin, Wen-Chi Chen

  • 1Department of Medical Genetics and Paediatrics, China Medical University Hospital, Taichung, Taiwan.

Acta Ophthalmologica Scandinavica
|January 24, 2004
PubMed
Abstract

Insights

The Arg allele of the p21 codon 31 polymorphism is more common in primary open-angle glaucoma (POAG) patients. This finding suggests a genetic link between this specific p21 gene variation and POAG in the Chinese population.

Area of Science:

  • Genetics
  • Ophthalmology
  • Molecular Biology

Background:

  • Glaucomatous neuropathy involves apoptosis, a programmed cell death.
  • Tumor suppressor protein p53 and its effector p21 are key regulators of apoptosis.
  • Understanding genetic factors in glaucoma is crucial for early detection and treatment.

Purpose of the Study:

  • To investigate the association between p21 codon 31 polymorphism and primary open-angle glaucoma (POAG).
  • To determine if specific p21 genotypes are risk factors for POAG in the Chinese population.

Main Methods:

  • Genotype analysis of p21 codon 31 polymorphism using polymerase chain reaction (PCR).
  • Comparison of genotype frequencies between 58 POAG patients and 59 healthy controls.

Main Results:

  • Statistically significant differences in p21 codon 31 genotype frequencies were observed between POAG patients and controls (p < 0.05).
  • The Arg allele of the p21 codon 31 polymorphism was found more frequently in POAG patients (OR: 2.389, 95% CI: 1.14-5.01).

Conclusions:

  • The Arg allele of the p21 codon 31 polymorphism is associated with an increased risk of POAG.
  • This genetic variation may play a role in the pathogenesis of POAG in the studied Chinese population.

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