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Biochem Biophys Res Commun. 2004 Feb 27;315(1):174-8.

Expression of three carnitine palmitoyltransferase-I isoforms in 10 regions of the rat brain during feeding, fasting, and diabetes.

Author information

  • 1Department of Pharmacology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA. elavrentyev@utmem.edu

Abstract

Inhibition of carnitine palmitoyltransferase-I (CPT-I) activity in the brain has been shown to decrease food intake in rats. We examined the expression of mRNA encoding all three known CPT-I isoforms (alpha, beta, and gamma in 10 different major regions of the rat brain in normal, chow-fed rats, in fasting rats, and in insulin-dependent diabetic rats. Compared with the effects of fasting and diabetes on CPT-I mRNA in the liver and heart, there was either less effect or no effect depending on the particular brain region examined. These results suggest that the regulation of CPT-I mRNA levels is different in the brain than in other tissues. A surprising result of this study was the discovery of very high, unique expression of CPT-Ibeta (the muscle isoform) in the cerebellum.

PMID:
15013442
[PubMed - indexed for MEDLINE]
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