Reports

Sterol Precursors of Cholesterol in Adult Human Brain

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Science  27 Dec 1968:
Vol. 162, Issue 3861, pp. 1495-1496
DOI: 10.1126/science.162.3861.1495

Abstract

Adult human brain contains cholestanol and two series of cholesterol precursors having 30, 29, 28, and 27 carbon atoms; one has an unsaturated steroid nucleus, and the other is unsaturated in both nucleus and side chain. The ability of preparations of brain to incorporate a specific precursor into cholesterol, as well as into these sterol metabolites in vitro, indicates that cholesterol synthesis continues long after brain maturation ceases.