title: Administration of Cyperus rotundus tubers extract prevents weight gain in obese Zucker rats.
abstract: Cyperus rotundus L. (Cyperaceae; C. rotundus) is an Indian medicinal plant demonstrated to exert multiple health benefits. The purpose of the present study was to test the biological efficacy of C. rotundus tubers extract on weight control in obese Zucker rats. It was demonstrated that administration of 45 or 220 mg/kg/day of C. rotundus tubers hexane extract for 60 days in Zucker rats induced a significant reduction in weight gain without affecting food consumption or inducing toxicity. In vitro, 250 microg/mL of this extract was able to stimulate lipolysis in 3T3-F442 adipocytes suggesting that this medicinal plant contains activators of beta-adrenoreceptors (AR). The binding assay performed on the rat beta3-AR isoform, known to induce thermogenesis, demonstrated that C. rotundus tubers extract can consistently and effectively bind to this receptor. These data suggest that the effect on weight gain exerted by C. rotundus tubers extract may be mediated, at least partially, through the activation of the beta3-AR. In conclusion, C. rotundus tubers extract prove to be a new herbal supplement for controlling body weight preferentially in beta3-AR sensitive species.
authors: Nestlé Research Center, 101 Avenue Gustave Eiffel, BP 49716, 37390 Tours cedex 2, France.
authors: Bernard
authors: B
authors: Lemaure
authors: André
authors: A
authors: Touché
authors: Irène
authors: I
authors: Zbinden
authors: Julie
authors: J
authors: Moulin
authors: Didier
authors: D
authors: Courtois
authors: Katherine
authors: K
authors: Macé
authors: Christian
authors: C
authors: Darimont
mesh_terms: D050154:Adiposity / Q000187:drug effects; D000818:Animals; D015415:Biomarkers; D001794:Blood Pressure / Q000187:drug effects; D029786:Cyperus / Q000737:chemistry*; D004305:Dose-Response Relationship, Drug; D008066:Lipolysis / Q000187:drug effects; D009765:Obesity / Q000188:drug therapy* / Q000503:physiopathology*; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology; D035281:Plant Tubers / Q000737:chemistry*; D051381:Rats; D011924:Rats, Zucker; D013997:Time Factors; D015430:Weight Gain / Q000187:drug effects*
chemical_list: D015415:Biomarkers; D010936:Plant Extracts