Effect of vitamin C and E activity on surgically removed cataractous human lens epithelium cells |
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Authors: | Madhur M Goyal Devarshi U Gajjar Dhara B Patel Pradeep Sune Abhay R Vasavda |
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Institution: | (1) Department of Ophthalmology, Osaka Ekisaikai Hospital, 2-1-10 Honden, Nishi-ku, 550-0022 Osaka, Japan;(2) Department of Ophthalmology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, 545-8585 Osaka, Japan |
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Abstract: | Oxidative stress has been proposed as a common underlying mechanism of cataractogenesis. Experimental and observational data
suggest that micronutrients like vitamin C and vitamin E with antioxidant capabilities may retard the development of age-related
cataract. Effect of these factors on lens epithelium cells, center of lens metabolic activities, is not completely elucidated.
The aim of present study was to examine the effect of vitamin C and E on surgically removed lens epithelium cells of patients
with cataract. Capsulorhexis samples were collected from 170 patients, admitted for cataract surgery. Catalase specific activity
was estimated in lens epithelium cells with and without vitamin (C or E) treatment at different concentration for different
time duration. Student’s t-test was employed for data analysis. We observed that in ex-vivo condition, a) both vitamin C and
E bring about a decrease in catalase activity in lens epithelial cells. b) vitamin C showed toxic effect at high concentration.
c) 100μM was the optimum concentration at which both vitamins showed maximum antioxidant activity. It was concluded that both
vitamin C and E has direct effect on lens epithelium cells. At optimum concentration, they can reduce oxidative stress in
these cells thus can support to prevent or delay cataract development. |
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