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Abstract Title:

Intervention with citrus flavonoids reverses obesity and improves metabolic syndrome and atherosclerosis in obesemice.

Abstract Source:

J Lipid Res. 2018 Sep ;59(9):1714-1728. Epub 2018 Jul 15. PMID: 30008441

Abstract Author(s):

Amy C Burke, Brian G Sutherland, Dawn E Telford, Marisa R Morrow, Cynthia G Sawyez, Jane Y Edwards, Maria Drangova, Murray W Huff

Article Affiliation:

Amy C Burke

Abstract:

Obesity and its associated metabolic dysfunction and cardiovascular disease risk represent a leading cause of adult morbidity worldwide. Currently available pharmacological therapies for obesity have had limited success in reversing existing obesity and metabolic dysregulation. Previous prevention studies demonstrated that the citrus flavonoids, naringenin and nobiletin, protect against obesity and metabolic dysfunction inmice fed a high-fat cholesterol-containing (HFHC) diet. However, their effects in an intervention model are unknown. In this report, we show that, inmice with diet-induced obesity, citrus flavonoid supplementation to a HFHC diet reversed existing obesity and adipocyte size and number through enhanced energy expenditure and increased hepatic fatty acid oxidation. Caloric intake was unaffected and no evidence of white adipose tissue browning was observed. Reversal of adiposity was accompanied by improvements in hyperlipidemia, insulin sensitivity, hepatic steatosis, and a modest reduction in blood monocytes. Together, this resulted in atherosclerotic lesions that were unchanged in size, but characterized by reduced macrophage content, consistent with a more stable plaque phenotype. These studies further suggest potential therapeutic utility of citrus flavonoids, especially in the context of existing obesity, metabolic dysfunction, and cardiovascular disease.

Study Type : Animal Study

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Sayer Ji
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