Exercise endurance-training alters vitamin E tissue levels and red-blood-cell hemolysis in rodents

Author:

Aikawa K. M.1,Quintanilha A. T.2,de Lumen B. O.1,Brooks G. A.3,Packer L.2

Affiliation:

1. Department of Nutritional Sciences, University of California, Berkeley, CA 94720, USA

2. Department of Physiology/Anatomy, University of California, Berkeley, CA 94720, USA

3. Exercise Physiology Laboratory, University of California, Berkeley, CA 94720, USA

Abstract

Muscle tissue levels of dl-α-tocopherol (vitamin E) were significantly lower in endurance-trained rats than in sedentary animals, whether the animals were fed on vitamin-E-deficient or control (vitamin-E-sufficient) diets. In vitamin-E-deficient rats, liver tissue levels of vitamin E were significantly lower in those that were endurance-trained than in those that were sedentary; this was not the case in control animals. In addition, for vitamin-E-deficient rats, the onset of red-blood-cell hemolysis in the sedentary animals occurred one week earlier than in the endurance-trained animals. Thus, it appears that training induces a protective effect against hemolysis despite vitamin E deficiency.

Publisher

Portland Press Ltd.

Subject

Cell Biology,Molecular Biology,Biochemistry,Biophysics

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