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ARTHUR C. CURTIS, M.D.; EDWARD M. KLINE, M.D.

Arch Intern Med. 1939;63(1):54-63.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

In 1927, Burrows and Farr,¹ and shortly thereafter Dutcher, Ely and Honeywell,² working independently, showed that rats were unable to utilize the vitamin A of butter fat when the latter was mixed with liquid petrolatum. Moness and Christiansen³ later described experiments showing that the utilization of vitamin A from cod liver oil was not appreciably affected by its mixture with liquid petrolatum. Rowntree⁴ stated the belief that if the vitamin A of the diet was not "adequate" the addition of liquid petrolatum to the diet of rats would cause a vitamin A deficiency to appear. She compared the effect of liquid petrolatum mixed with small amounts of butter fat with that of liquid petrolatum mixed with small amounts of cod liver oil. Her results, interpreted in the light of previous observations by Moness and Christiansen, are essentially like theirs: that the vitamin A of cod liver . . . [Full Text PDF of this Article]

Author Affiliations
ANN ARBOR, MICH.

From the Department of Internal Medicine of the Medical School of the University of Michigan.

Footnotes
Read at the Tenth Annual Meeting of the Central Society for Clinical Research, Chicago, Nov. 5, 1937.

A part of the expense of this investigation was defrayed from the income of The Upjohn Company Fellowship in Medicine, University of Michigan, 1937 and 1938.

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