The Effect of Whole-body X-irradiation on the Synthesis of Individual Fatty Acids in Liver Slices from Normal and Fasted Rats

Authors: Hansen, Heinz J.M.¹; Hansen, Lis G.¹; Faber, Mogens¹

Source: International Journal of Radiation Biology, Volume 9, Number 1, 196506 , pp. 25-36(12)

Publisher: Informa Healthcare

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Abstract:

(1) Using (2-14C) acetate and (1-14C) butyrate as precursors, rat-liver fatty acids were synthesized in vitro and assayed by paper chromatography.(2) Whole-body x-irradiation induced a change in the synthetic pattern of hepatic fatty acids towards a relatively enhanced synthesis of palmitic acid.(3) X-irradiation and fasting seem to have opposite effects on fatty-acid synthesis. X-irradiation counteracts the drop in total synthesis and the relatively enhanced synthesis of palmitoleic acid induced by fasting. The relative enhancement of palmitic-acid synthesis mentioned under (2) stands in contrast to the effect of fasting, which specifically decreases the hepatic synthesis of palmitic acid.(4) There is a general similarity between corresponding fatty-acid patterns based on synthesis from (2-14C) acetate and (1-14C) butyrate, respectively.

Document Type: Research article

DOI: 10.1080/09553006514550031

Affiliations: 1: Finsen Laboratory, KÃ¸benhavn Ã˜, Denmark

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