Effect of pioglitazone, quercetin, and hydroxy citric acid on vascular endothelial growth factor messenger RNA (VEGF mRNA) expression in experimentally induced nonalcoholic steatohepatitis (NASH)*

Background/aim: Vascular endothelial growth factor (VEGF) is associated with various ischemic and inflammatory diseases, and plays an important role in the development of liver fibrosis and hepatocarcinogenesis in nonalcoholic steatohepatitis (NASH). In this study, the comparative effect of pioglitazone, quercetin, and hydroxy citric acid on VEGF mRNA in experimentally induced NASH was investigated. Materials and methods: The experimental protocol consisted of five groups: control, NASH, NASH + pioglitazone, NASH + quercetin, and NASH + hydroxy citric acid. The VEGF mRNA expression was evaluated by reverse transcription polymerase chain reaction (RT-PCR) analysis for all experimental groups, and the levels of VEGF mRNA were quantitatively measured by densitometry. Results: A higher expression of VEGF mRNA was found in the hepatic cells of rats with experimentally induced NASH compared to the control group. A very mild increase in VEGF mRNA expression was observed in the rats treated with quercetin. In contrast, a mild increase in the expression of VEGF mRNA was observed in the rats treated with pioglitazone and hydroxy citric acid. Conclusion: Quercetin exhibited an effective inhibition of VEGF mRNA expression, while a lower inhibition of the VEGF mRNA level was observed in the hydroxy citric acid- and the pioglitazone-treated rats.

Effect of pioglitazone, quercetin, and hydroxy citric acid on vascular endothelial growth factor messenger RNA (VEGF mRNA) expression in experimentally induced nonalcoholic steatohepatitis (NASH)

Background/aim: Vascular endothelial growth factor (VEGF) is associated with various ischemic and inflammatory diseases, and plays an important role in the development of liver fibrosis and hepatocarcinogenesis in nonalcoholic steatohepatitis (NASH). In this study, the comparative effect of pioglitazone, quercetin, and hydroxy citric acid on VEGF mRNA in experimentally induced NASH was investigated. Materials and methods: The experimental protocol consisted of five groups: control, NASH, NASH + pioglitazone, NASH + quercetin, and NASH + hydroxy citric acid. The VEGF mRNA expression was evaluated by reverse transcription polymerase chain reaction (RT-PCR) analysis for all experimental groups, and the levels of VEGF mRNA were quantitatively measured by densitometry. Results: A higher expression of VEGF mRNA was found in the hepatic cells of rats with experimentally induced NASH compared to the control group. A very mild increase in VEGF mRNA expression was observed in the rats treated with quercetin. In contrast, a mild increase in the expression of VEGF mRNA was observed in the rats treated with pioglitazone and hydroxy citric acid. Conclusion: Quercetin exhibited an effective inhibition of VEGF mRNA expression, while a lower inhibition of the VEGF mRNA level was observed in the hydroxy citric acid- and the pioglitazone-treated rats.

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  • Surapaneni KM, Jainu M. Comparative effect of pioglitazone,
  • quercetin and hydroxy citric acid on the status of lipid
  • peroxidation and antioxidants in experimental non-alcoholic
  • steatohepatitis. J Phyiol Pharmacol 2014; 65: 67–74.
  • Surapaneni KM, Saraswathi P, Jainu M. Non alcoholic steatohepatitis (NASH) experimental model induction in rats. Int J Pharm Bio Sci 2012; 3: 1085–1090.
  • Surapaneni KM, Sarswathi P, Jainu M. Role of pioglitazone, quercetin and hydroxy citric acid against non alcoholic steatohepatitis (NASH) - histological and scanning electron microscopy (SEM) studies in an experimental model of NASH. Asian J Pharm Clin Res, 2012; 5: 244–247.
  • Biscetti F, Straface G, Arena V, Stigliano E, Pecorini G, Rizzo P, De Angelis G, Iuliano L, Ghirlanda G, Flex A. Pioglitazone enhances collateral blood flow in ischemic hindlimb of diabetic mice through an Akt-dependent VEGF-mediated mechanism, regardless of PPARγ stimulation. Cardiovasc Diabetol 2009; 8: 49.
  • Murata T, He S, Hangai M, Ishibashi T, Xi XP, Kim S, Hsueh WA, Ryan SJ, Law RE, Hinton DR. Peroxisome proliferator-activated receptor-gamma ligands inhibit choroidal neovascularization. Invest Ophthalmol Vis Sci 2000; 41: 2309–2317.
  • Jeon H, Kim H, Choi D, Kim D, Park SY, Kim YJ, Kim YM, Jung Y. Quercetin activates an angiogenic pathway, hypoxia inducible factor (HIF)-1-vascular endothelial growth factor, by inhibiting HIF-prolyl hydroxylase: a structural analysis of quercetin for inhibiting HIF-prolyl hydroxylase. Mol Pharmacol 2007; 71: 1676–1684.
Turkish Journal of Medical Sciences-Cover
  • ISSN: 1300-0144
  • Yayın Aralığı: Yılda 6 Sayı
  • Yayıncı: TÜBİTAK
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