Elsevier

Experimental Eye Research

Volume 60, Issue 2, February 1995, Pages 159-163
Experimental Eye Research

Frequency of glutathione-S-transferase 1 gene deletion and its possible correlation with cataract formation*

https://doi.org/10.1016/S0014-4835(95)80006-9Get rights and content

This experiment was conducted to investigate the possible association between an increased frequency of glutathione-S-transferase (GST)1 gene deletion and the presence of cataracts in elderly patients. Genomic DNA was isolated from blood samples obtained from 138 elderly patients who had undergone cataract surgery, and from 62 random blood donors. All subjects lived in the same geographic area (Ibaraki Prefecture, Japan). The DNA sequences among three different exon ranges (exons 3–5, exons 4–5 and exons 5–6) of the GST1 gene were amplified by the polymerase chain reaction (PCR) technique to determine if GST1 gene deletion occurred. Cataract patients had a significantly higher frequency of GST1 gene deletion than random controls did (P < 0·001, odds ratio = 2·91, 1·56–5·44; 95% of confidence interval). Mean age of cataract patients lacking GST1 gene was significantly younger (n = 101, mean age = 70·4, s.d. = 10·2) than that of patients possessing the GST1 gene (n = 37, mean age = 75·0, s.d. = 8·7) (P < 0·02).

These results show that the deletion of the GST1 gene may be one of determinants of genetic susceptibility to cataractgenic agents.

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