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A Gender-related Defect in Lipid Metabolism and Glucose Homeostasis in Peroxisome Proliferator- Activated Receptor Alpha- Deficient Mice

Overview
Journal J Clin Invest
Specialty General Medicine
Date 1998 Sep 17
PMID 9739042
Citations 133
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Abstract

The peroxisome proliferator-activated receptor alpha (PPARalpha) is a nuclear receptor implicated in the control of cellular lipid utilization. To test the hypothesis that PPARalpha is activated as a component of the cellular lipid homeostatic response, the expression of PPARalpha target genes was characterized in response to a perturbation in cellular lipid oxidative flux caused by pharmacologic inhibition of mitochondrial fatty acid import. Inhibition of fatty acid oxidative flux caused a feedback induction of PPARalpha target genes encoding fatty acid oxidation enzymes in liver and heart. In mice lacking PPARalpha (PPARalpha-/-), inhibition of cellular fatty acid flux caused massive hepatic and cardiac lipid accumulation, hypoglycemia, and death in 100% of male, but only 25% of female PPARalpha-/- mice. The metabolic phenotype of male PPARalpha-/- mice was rescued by a 2-wk pretreatment with beta-estradiol. These results demonstrate a pivotal role for PPARalpha in lipid and glucose homeostasis in vivo and implicate estrogen signaling pathways in the regulation of cardiac and hepatic lipid metabolism.

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References
1.
Roehrig K, Allred J . Direct enzymatic procedure for the determination of liver glycogen. Anal Biochem. 1974; 58(2):414-21. DOI: 10.1016/0003-2697(74)90210-3. View

2.
Brandt J, Djouadi F, Kelly D . Fatty acids activate transcription of the muscle carnitine palmitoyltransferase I gene in cardiac myocytes via the peroxisome proliferator-activated receptor alpha. J Biol Chem. 1998; 273(37):23786-92. DOI: 10.1074/jbc.273.37.23786. View

3.
Schulz H . Inhibitors of fatty acid oxidation. Life Sci. 1987; 40(15):1443-9. DOI: 10.1016/0024-3205(87)90375-4. View

4.
Kelly D, Gordon J, Alpers R, Strauss A . The tissue-specific expression and developmental regulation of two nuclear genes encoding rat mitochondrial proteins. Medium chain acyl-CoA dehydrogenase and mitochondrial malate dehydrogenase. J Biol Chem. 1989; 264(32):18921-5. View

5.
Issemann I, Green S . Activation of a member of the steroid hormone receptor superfamily by peroxisome proliferators. Nature. 1990; 347(6294):645-50. DOI: 10.1038/347645a0. View