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Red blood cell tocopherol and liver tocopherol in hyperlipemic rats as compared with plasma tocopherol
Abstract:
In rats with hyperlipemia induced by Triton WR-1339, changes in tocopherol concentrations in plasma and RBC were compared with those in the liver and its subcellular fractions, microsomes and mitochondria. After daily injection with Triton, plasma total lipids at 3 days and 7 days, respectively, showed elevations 6.5 times and 15 times as high as those in the control rats, and triglycerides showed the most predominant elevation. With the hyperlipemia, the concentrations of tocopherol in RBC and the subcellular fractions decreased, as plasma lipids and plasma tocopherol increased, while no change occurred in tocopherol concentrations in liver homogenates. The changes in the ratio of tocopherol to total lipids in plasma coincided with changes in tocopherol concentrations in the RBC and subcellular fractions.