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Effect of CDP-choline on the biosynthesis of phospholipids in brain regions during hypoxic treatment

✍ Scribed by Dr. M. Alberghina; M. Viola; I. Serra; A. Mistretta; A. M. Giuffrida

Publisher: John Wiley and Sons
Year: 1981
Tongue: English
Weight: 780 KB
Volume: 6
Category: Article
ISSN: 0360-4012
DOI: 10.1002/jnr.490060316

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✦ Synopsis

Abstract

Acute administration of CDP‐choline (i.p. 100 mg/Kg b.w.), 10 min before the intraventricular injection of labeled precursors, [2‐^3^H]glycerol and [1‐^14^C]‐palmitate, was able to correct the impairment caused by hypoxic treatment of lipid metabolism in some brain regions, ie, cerebral hemispheres, cerebellum, and brainstem.

After CDP‐choline treatment, an increase of the specific radioactivity of total lipids and of phospholipids was observed in mitochondria purified from the three above‐mentioned brain regions of the hypoxic animals, while no effect on the other subcellular fractions was found. CDP‐choline had a stimulating effect particularly on the incorporation of both precursors into mitochondrial PC, PE, and polyglycerophosphatides isolated from the three brain regions examined.

The results obtained show that the action of CDP‐choline in restoring lipid metabolism was more pronounced in brain mitochondria, which, among subcellular fractions, were the most affected by the hypoxic treatment.

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