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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Effect of dietary vitamin E and vitamin C on respiration and swelling of guinea pig liver mitochondria.

The effect of dietary vitamin C on vitamin E status and function was studied with weanling male Hartley guinea pigs. Thirty guinea pigs fed a basal diet free of vitamins E and C were divided into two groups; only one group received 2 mg/100 g body weight/day of vitamin C. Each group was further divided into three subgroups and received 0, 0.2, and 0.4 IU/100 g body weight/day of vitamin E. After 5 weeks the animals were killed. Degree of erythrocyte hemolysis induced by dialuric acid, level of plasma vitamin E and extent of liver lipid peroxidation were determined. Liver mitochondria were isolated and in vitro oxygen uptake was measured. The rate of swelling of mitochondria in two media was also determined. The results showed that the adequate dietary vitamin C supplementation did not affect the extent of erythrocyte hemolysis induced by dialuric acid, but increased the plasma vitamin E level and lowered liver lipid peroxidation. It also maintained the normal respiration and swelling rates of liver mitochondria when vitamin E was inadequate.[1]

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