The effects of running stress on plasma vitamin A levels in rats

The plasma concentrations of vitamin A, zinc and proteins and the hepatic level of vitamin A were determined in rats subjected to running as a model for stress and which were receiving standard or vitamin-A free diets. All rats showed a decrease in plasma vitamin A with running compared with non-run...

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Bibliographic Details
Published in:	Food and chemical toxicology Vol. 35; no. 5; pp. 459 - 463
Main Authors:	Brandt, R.B., Doyle, B.A., Chan, W., Poland, J.L., Seibel, H.R.
Format:	Journal Article
Language:	English
Published:	Oxford Elsevier Ltd 01-05-1997 New York, NY Elsevier Science
Subjects:	Animals Biological and medical sciences Blood Proteins - analysis Enzymes. Coenzymes. Vitamins. Pigments Fundamental and applied biological sciences. Psychology hepatic concentration of vitamin A Liver - chemistry Liver - ultrastructure Male Metabolisms and neurohumoral controls Microscopy, Electron Organelles - ultrastructure Physical Conditioning, Animal plasma concentration of vitamin A Rats Rats, Sprague-Dawley running as a stress Serum Albumin - analysis Stress, Physiological - blood Stress, Physiological - physiopathology Vertebrates: anatomy and physiology, studies on body, several organs or systems Vitamin A - analysis Vitamin A - blood vitamin A depletion Zinc - blood zinc and proteins running as a stress zinc and proteins vitamin A depletion hepatic concentration of vitamin A rats plasma concentration of vitamin A Treadmill exercise Physical exercise Depletion Liver Rate Vitamin Stress Blood plasma Retinol
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Summary:	The plasma concentrations of vitamin A, zinc and proteins and the hepatic level of vitamin A were determined in rats subjected to running as a model for stress and which were receiving standard or vitamin-A free diets. All rats showed a decrease in plasma vitamin A with running compared with non-running control animals. Hepatic levels of vitamin A were higher in these two test groups than in their weight- and age-matched non-running controls. The data support that running, like other forms of stress, decreases plasma vitamin A, consistent with the retention of vitamin A in the liver.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2
ISSN:	0278-6915 1873-6351
DOI:	10.1016/S0278-6915(97)00013-6