Effects of combined PPAR-γ and PPAR-α agonist therapy on fructose induced NASH in rats: Modulation of gene expression
Abstract
Peroxisome proliferator-activated receptors (PPARs) gamma and alpha have been shown to play key roles in maintaining glucose and lipid homeostasis by acting as insulin sensitizers and lipid-lowering agents respectively, which would make them potential candidates for the treatment of non-alcoholic steatohepatitis (NASH) characterized by insulin resistance, hyperglycemia, and hypertriglyceridemia. The effects of pioglitazone, a PPAR-γ agonist, and fenofibrate, a PPAR-α agonist, as monotherapy and in combination on the expressions of key genes linked to the development of NASH were studied in rats with fructose-induced NASH. Fructose-enriched diet was given to rats for 12 weeks. Fenofibrate (100mg/kg), pioglitazone (4 mg/kg) and combined treatment with both in half doses were given. Body weight, liver index, insulin resistance indices, triglycerides, oxidative stress markers, AST/ALT ratio and TNF-α were measured. Additionally, hepatic genes expressions of SOCS-3, sterol regulatory element binding protein-1c, fatty acid synthase, malonyl CoA decarboxylase, TGF-β1, and adipose tissue genes expressions of leptin and adiponectin were investigated. The combination of both drugs, in half doses, improved NASH-related disturbances simila...Continue Reading
References
Citations
Comparison of fenofibrate and pioglitazone effects on patients with nonalcoholic fatty liver disease
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