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J Agric Food Chem. 2019 Sep 11;67(36):10107-10115. doi: 10.1021/acs.jafc.9b04362. Epub 2019 Sep 3.

Limonoid 7-Deacetoxy-7-oxogedunin from Andiroba, Carapa guianensis, Meliaceae, Decreased Body Weight Gain, Improved Insulin Sensitivity, and Activated Brown Adipose Tissue in High-Fat-Diet-Fed Mice.

Abstract

We examined the antiobesity effect of a limonoid 7-deacetoxy-7-oxogedunin, named CG-1, purified from the seeds of Carapa guianensis, Meliaceae, known as andiroba in high-fat-diet (HFD)-fed mice. C57BL/6 mice were fed a low-fat diet or an HFD and orally administered CG-1 (20 mg/kg) for 7 weeks. CG-1 lowered the body weight gain and improved the serum triglyceride level and insulin sensitivity in HFD-fed mice. The expression level of the adipogenesis-related genes was lowered by CG-1 in the visceral white adipose tissue (vWAT). The mRNA expression level of the macrophage-related genes decreased in vWAT following the administration of CG-1 to HFD-fed mice. It is noteworthy that CG-1 activated the brown adipose tissue (BAT) with enhanced expression of uncoupling protein 1 and increased the rectal temperature in HFD-fed mice. These results indicate that the limonoid CG-1 decreased body weight gain and ameliorated hypertriglyceridemia and insulin resistance with the activation of BAT in HFD-fed mice.

KEYWORDS:

BAT; andiroba; insulin resistance; limonoid; obesity

PMID:
31434473
DOI:
10.1021/acs.jafc.9b04362
[Indexed for MEDLINE]

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