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Turkish Journal of Medical Sciences

Article Title

The in Vitro Effects of Captopril on the Levels of Lipid Peroxidation and Glutathione of Erythrocytes in Type ll Diabetics

DOI

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Abstract

The increase in lipid peroxidation (LP) is an indirect marker of free radical activation. The products of LP (malonyldialdhyde: MDA) are increased in diabetic patient, particularly those with angiopathy. In this study, the invitro effect and the mechanism of action captopril, an angiotensin converting enzyme (ACE) inhibitor, on lipid peroxidation in diabetics is investigated. For this purpose, MDA and gulutathione levels are studied in erythrocytes of 9 type ll diabetics (NIDDM) (mean age: 57±10 yrs, duration of diabets: 12±6 yrs) and 10 healthy subjects (mean age: 30±5 yrs). The level of lipid peroxides was expressed as MDA release (MDA%). MDA in erythrocytes of type ll diabetics has been decreased by the effect of increasing concentrations of captobril (before:19.47±2.80, after captopril: (2x10-5M) 14.21±3.20 MDA%; (4x10-5 M)12.14±3.29MDA%; (6x10-5M) 11.53±2.72 MDA%; (10x10-5M) 10.57±2.09 MDA%). In control group, there is a little decrease in LP after preincubation with captopril from 2 to 6x10-5 M captopril (p>0.05), but 10x10-5M concentration reduced the lipd peroxidation (p>0.05), but 10x10^{-5}M concentration reduced the lipid peroxidation (p

First Page

139

Last Page

142

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