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Sterol biosynthesis from acetate and the fate of dietary cholesterol and desmosterol in crabs


Sterol biosynthesis from acetate and the fate of dietary cholesterol and desmosterol in crabs



Nippon Suisan Gakkaishi 42(11): 1273-1280



ISSN/ISBN: 0021-5392

DOI: 10.2331/suisan.42.1273

The sterol-synthesizing ability and the fate of dietary sterols, cholesterol and desmosterol, in the crabs Sesarma dehaani and Helice tridens were studied. Injected acetate-1-14C was not incorporated into either squalene or sterols in these crabs; the sterol-synthesizing ability from acetate was probably absent or weak. The apparent percentage absorptions of dietary cholesterol and desmosterol from the digestive tracts were 91.9 and 90.9, respectively. Ingested cholesterol and desmosterol were metabolized to steryl esters and polar compounds but only slightly to water-soluble sterols. S. dehaani was capable of converting desmosterol to cholesterol.

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Accession: 006479819

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