Key result
Cholesterol diet in rabbits induces hemolytic anemia and shortens RBC half-life by ~69%.
Why the study?
The characteristics and mechanism of anemia developing in rabbits fed a cholesterol-containing diet were not fully understood.
Indicates hemolytic anemia in cholesterol-fed rabbits; leaves open translation to human dyslipidemia or anemia management.
The anemia developed by rabbits fed a cholesterol-containing diet seems to be of the hemolytic type. A striking increase in reticulocyte count, the appearance of nucleated red cells of different maturity in the peripheral circulation, anisocytosis, anisochromia and erythrocytes with punctate basophilia are characteristic findings on stained films and are the first symptoms of the progressing anemia. The red cell count decreases and reaches the lowest level at about the 8th–12th week of exposure of the animals to cholesterol. Cr51 survival studies revealed a shortened T 1/2:3.7 days compared to 12 days, which is the established normal value under our conditions. The results of cross-transfusion studies are interpreted as the indication that the anemia is developed as the consequence of the production of red cells with decreased resistance.
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Pinter et al. (1961) studied Anemia. Cholesterol-containing diet vs. Normal conditions was evaluated on Cr51 survival (T 1/2). A cholesterol-containing diet in rabbits induced hemolytic anemia characterized by a shortened red blood cell half-life (T 1/2 of 3.7 days compared to a normal 12 days).
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