Sleep: Effects on Incorporation of Inorganic Phosphate into Brain Fractions

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Science  21 Jul 1967:
Vol. 157, Issue 3786, pp. 336-338
DOI: 10.1126/science.157.3786.336


During sleep there is a two- to threefold increase in the incorporation of inorganic orthophosphate-32P into a chemical fraction of the brain of the 20-day-old rat. This increase is not in the lipids or nucleic acids, but is associated with an acid-labile phosphate entity of the tissue residue after extraction of these fractions and phosphorus-containing substances of low molecular weight.