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  • Title: Simultaneous occurrence of hypercholesterolemia and hemolytic anemia in rats fed cholesterol diet.
    Author: Akahane K, Furuhama K, Onodera T.
    Journal: Life Sci; 1986 Aug 11; 39(6):499-505. PubMed ID: 3736336.
    Abstract:
    Cholesterol diet-induced hemolytic anemia in rats was described. When rats were fed a cholesterol diet for 11 weeks, serum cholesterol rapidly increased within the first week, and was maintained in 5-10 times higher levels throughout the study as compared to those of control rats. Erythrocyte count, hematocrit and hemoglobin concentration decreased from about 2 weeks of feeding. The spleen showed an increase of hemosiderin deposition from 6 weeks of feeding. The half life of erythrocytes labelled with 51Cr was shortened significantly at 6 weeks of feeding. These findings indicate that cholesterol diet can induce hemolytic anemia. Serum cholesterol and phospholipid were markedly increased, but in erythrocyte membrane, free cholesterol content was not persistently increased and phospholipid content was decreased. In hemorrheological studies, erythrocyte deformability and mechanical hemolysis tended to reduce. In conclusion, it was considered that as a result of reduced phospholipid content the erythrocytes of cholesterol-fed rats were decreased in its deformability and were captured more easily by the spleen. The profile of hemolytic anemia in cholesterol-fed rats was quite different from those reported in cholesterol-fed guinea pigs, rabbits and dogs.
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