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The effect of vitamin A deficiency and dietary alpha-tocopherol on the stability of rat-liver lysosomes.

ABSTRACT: 1. Vitamin A-deficient rats and pair-fed controls were maintained on either normal or raised amounts of dietary alpha-tocopherol. 2. Their livers were fractionated and ;free' and ;total' lysosomal phosphatase were determined in the various fractions. The rate of release of this enzyme was determined in the mitochondria-lysosome-rich fraction during incubation at pH5 and 37 degrees . 3. The deficient livers showed increased enzymic activity. 4. Prolonged incubation caused more rapid enzyme release from the mitochondria-lysosome-rich fraction of the vitamin A-deficient rats receiving the normal amount of dietary alpha-tocopherol than from the equivalent fraction of their pair-fed controls receiving vitamin A. Raised dietary alpha-tocopherol reversed this phenomenon.

SUBMITTER: Roels OA

PROVIDER: S-EPMC1264647 | biostudies-other | 1965 Nov

REPOSITORIES: biostudies-other

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2016-10-12 | GSE87845 | GEO

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