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Chemico-biological interactions

Antihyperlipidemic and hepatoprotective effects of Gardenin A in cellular and high fat diet fed rodent models.


PMID 28351695

Abstract

The gum of Gardenia resinifera Roth., is one of the important drugs used in the Indian system of medicine and a source of unique polymethoxylated flavones. This study was aimed to evaluate the antihyperlipidemic and anti-NAFLD effects of Gardenin A (Gar-A) from G. resinifera gum using in vitro and in vivo models. Gar-A was isolated from G. resinifera gum and was identified on the basis of the physical and spectral data. Toxicity of Gar-A to HepG2 cells was evaluated using MTT assay. The ability of Gar-A to reduce steatosis was assessed using oleate-palmitate induced HepG2 cell lines by estimating the lipid levels by ORO staining and by estimating the intracellular triglyceride content. Effect of Gar-A on amelioration of lipotoxicity was measured by estimating the LDH levels. The doses for in vivo experiments were fixed by Irwin test, between 50 and 100 mg/kg concentrations, through oral route. The acute antihyperlipidemic effect of Gar-A was assessed in Triton WR-1339 induced hyperlipidemic animals. The chronic antihyperlipidemic and anti-NAFLD effects of Gar-A were evaluated in HFD fed rats. In vitro experiments with HepG2 cell line indicated that the cells treated with Gar-A did not show any significant reduction in the viability up to 70 μg/mL concentration. Steatotic HepG2 cells treated with Gar-A showed a significant reduction in lipid accumulation at 2.5-10 μg/mL concentrations. In triton induced hyperlipidemic rats, the treatment significantly reduced the lipid levels at the synthesis phase. The treatment with Gar-A to the HFD fed animals significantly lowered the steatosis and transaminase levels. The other biochemical parameters such as TC, TG, LDL-c, ALP and ACP were also decreased significantly. Treatment with Gar-A significantly lowered the hyperlipidemia and fat accumulation in the liver; detailed molecular investigations are necessary to establish the antihyperlipidemic and hepatoprotective potentials of Gar-A.

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P9767
Sodium palmitate, ≥98.5%
C16H31NaO2