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Critical Reviews™ in Eukaryotic Gene Expression
Facteur d'impact: 2.156 Facteur d'impact sur 5 ans: 2.255 SJR: 0.649 SNIP: 0.599 CiteScore™: 3

ISSN Imprimer: 1045-4403
ISSN En ligne: 2162-6502

Critical Reviews™ in Eukaryotic Gene Expression

DOI: 10.1615/CritRevEukaryotGeneExpr.2016016665
pages 303-308

Peroxisome Proliferator-Activated Receptor Alpha (PPARα), a Key Regulator of Lipid Metabolism in Avians

Bahman Navidshad
Department of Animal Science, University of Mohaghegh Ardabili, Ardabil, Iran
M. Royan
Department of Animal Biotechnology, Agricultural Biotechnology Research Institute (ABRII), North Branch, Rasht, Iran


Dietary fatty acids have various effects on cellular metabolism, and many of these effects are carried out through the alteration of the gene expression. Fatty acids upregulate or downregulate the expression of different genes by acting both as agonists or antagonists for nuclear hormone receptors. Peroxisome proliferator-activated receptors (PPARs) are members of the nuclear hormone receptor superfamily. To date, three PPAR subtypes, α, β, and γ, have been recognized. PPARs regulate various target genes with a role in intracellular and extracellular lipid metabolism, mainly those involved in peroxisomal β-oxidation. PPAR controls several genes involved in lipid metabolism, including Δ-5, Δ-6, and Δ-9 desaturases, acyl-coenzyme A oxidase, and carnitine palmitoyltransferase. The activation of PPARα might thus decrease fat deposits indirectly by raising hepatic fatty acid β-oxidation. PPARα is likely part of the regulating system of energy metabolism in peripheral tissues such as adipose tissue and skeletal muscles.

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