期刊
MOLECULAR AND CELLULAR BIOCHEMISTRY
卷 366, 期 1-2, 页码 41-48出版社
SPRINGER
DOI: 10.1007/s11010-012-1281-3
关键词
Sodium pump; Kidney; Antioxidant; Fibrate; Hypertriglyceridemia
类别
资金
- Slovak Grant Agency VEGA [2/0115/10, 2/0086/08]
The study was focused to the influence of higher intake of cholesterol on properties of the renal Na,K-ATPase, a key system in maintaining the homeostasis of sodium in the organism. Feeding for 4 weeks with cholesterol-enriched food for rats afflicted with hereditary hypertriglyceridemia by itself enhanced the activity of Na,K-ATPase, probably as a consequence of higher number of active enzyme molecules as suggested by 32 % increase of V (max) value. This may be hypothesized as a reason for the increased retention of sodium. Three-week-lasting treatment of animals kept on high cholesterol diet with antioxidant SMe1EC2 in a dose of 10 mg kg(-1) day(-1) normalized the function of renal Na,K-ATPase to the level comparable in hypertriglyceridemic rats fed with the standard diet. Therefore, our results suggest that the antioxidant SMe1EC2 in the applied dose seems to be effective in the attenuation of cholesterol-induced retention of sodium. Treatment for 3 weeks with Fenofibrate in a dose of 100 mg kg(-1) day(-1) reversed the function of renal Na,K-ATPase only slightly.
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