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Curcumin as a Potent and Selective Inhibitor of 11β-Hydroxysteroid Dehydrogenase 1: Improving Lipid Profiles in High-Fat-Diet-Treated Rats
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Curcumin as a Potent and Selective Inhibitor of 11β-Hydroxysteroid Dehydrogenase 1: Improving Lipid Profiles in High-Fat-Diet-Treated Rats
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Journal Article
Curcumin as a Potent and Selective Inhibitor of 11β-Hydroxysteroid Dehydrogenase 1: Improving Lipid Profiles in High-Fat-Diet-Treated Rats
2013
Overview
11β-Hydroxysteroid dehydrogenase 1 (11β-HSD1) activates glucocorticoid locally in liver and fat tissues to aggravate metabolic syndrome. 11β-HSD1 selective inhibitor can be used to treat metabolic syndrome. Curcumin and its derivatives as selective inhibitors of 11β-HSD1 have not been reported.
Curcumin and its 12 derivatives were tested for their potencies of inhibitory effects on human and rat 11β-HSD1 with selectivity against 11β-HSD2. 200 mg/kg curcumin was gavaged to adult male Sprague-Dawley rats with high-fat-diet-induced metabolic syndrome for 2 months.
Curcumin exhibited inhibitory potency against human and rat 11β-HSD1 in intact cells with IC50 values of 2.29 and 5.79 µM, respectively, with selectivity against 11β-HSD2 (IC50, 14.56 and 11.92 µM). Curcumin was a competitive inhibitor of human and rat 11β-HSD1. Curcumin reduced serum glucose, cholesterol, triglyceride, low density lipoprotein levels in high-fat-diet-induced obese rats. Four curcumin derivatives had much higher potencies for Inhibition of 11β-HSD1. One of them is (1E,4E)-1,5-bis(thiophen-2-yl) penta-1,4-dien-3-one (compound 6), which had IC50 values of 93 and 184 nM for human and rat 11β-HSD1, respectively. Compound 6 did not inhibit human and rat kidney 11β-HSD2 at 100 µM. In conclusion, curcumin is effective for the treatment of metabolic syndrome and four novel curcumin derivatives had high potencies for inhibition of human 11β-HSD1 with selectivity against 11β-HSD2.
Publisher
Public Library of Science,Public Library of Science (PLoS)
Subject
11-beta-Hydroxysteroid Dehydrogenase Type 1 - antagonists & inhibitors
/ 11-beta-Hydroxysteroid Dehydrogenase Type 1 - metabolism
/ 11-beta-Hydroxysteroid Dehydrogenase Type 2 - antagonists & inhibitors
/ 11-beta-Hydroxysteroid Dehydrogenase Type 2 - metabolism
/ 11β-Hydroxysteroid dehydrogenase
/ Animals
/ Biology
/ Blood Glucose - drug effects
/ Curcumin
/ Diabetes
/ Diet
/ Diet, High-Fat - adverse effects
/ Enzymes
/ Functional foods & nutraceuticals
/ Hormones
/ Humans
/ Kidneys
/ Liver
/ Male
/ Medicine
/ Metabolic Syndrome - chemically induced
/ Metabolic Syndrome - drug therapy
/ Obesity
/ Pharmacy
/ Rats
/ Rodents
