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American Journal of Clinical Nutrition, Vol 26, 409-414, Copyright © 1973 by The American Society for Clinical Nutrition, Inc.

Relationship of hepatic trace metals to intestinal transport in choline-deficient rats

Robert C. Keefer Ph.D.1, Dean J. Tuma M.S.1, and Anthony J. Barak Ph.D.1

1 From the Liver Study Unit, Medical Research Laboratories, Veterans Administration Hospital, Omaha, Nebraska 68105

Rats placed on a choline-deficient diet for a period of 25 days were shown to develop liver levels of magnesium, manganese, and zinc that remained below those of the control animals throughout the experimental period. When magnesium and manganese transport were studied using intestinal tissue from choline-deficient animals, it was shown that the transmural movement of these metals was inhibited in these tissues when compared with that from control animals. From these data, as well as evidence reported by other investigators, it is suggested that through its influence on trace metal transport at the level of the intestine, choline may exert an effect on hepatic lipid metabolism.






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Copyright © 1973 by The American Society for Nutrition