• Gastrointest. Endosc. · Sep 2011

    Editorial

    Endoscopic visceral fat removal as therapy for obesity and metabolic syndrome: a sham-controlled pilot study (with video).

    • Lu Xia, Jing Hua, Xavier Dray, Mouen A Khashab, Shuwen Liang, Yong-Sik Kim, Cristina Jimeno-Ayllon, Anthony N Kalloo, and Zhiping Li.
    • The Johns Hopkins University, Baltimore, Maryland, USA.
    • Gastrointest. Endosc. 2011 Sep 1; 74 (3): 637-44.

    BackgroundIncreased visceral adiposity is a key feature of obesity and metabolic syndrome. Previous studies have generated controversial results regarding visceral fat (VF) removal as a therapy for obesity and metabolic syndrome.ObjectiveTo study the effect of surgical VF removal on metabolic profiles in a mouse model of diet-induced obesity and metabolic syndrome and to evaluate for the first time the feasibility of endoscopic omentectomy using natural orifice transluminal endoscopic surgery (NOTES) technique as treatment for obesity and metabolic syndrome in a feline model.SettingThe Johns Hopkins Hospital.DesignSham-controlled study in a mouse model of metabolic syndrome and then pilot endoscopic sham-controlled study in cats.InterventionsPartial or total surgical VF removal was performed in a high-fat diet-induced mouse model of obesity and metabolic syndrome, followed by measurements of metabolic profiles, and endoscopic omentectomy was performed in a feline model using the NOTES approach.Main Outcome MeasurementsWeight loss and metabolic profiles.ResultsIn a mouse model of obesity, total but not partial VF removal significantly improved obesity and metabolic syndrome, including insulin resistance and hepatic steatosis (all P < .05 vs sham surgery). The improved metabolic syndrome was associated with significantly decreased inflammatory cytokines. In a feline model, endoscopic omentectomy was feasible and safe and resulted in a net weight loss compared with sham surgery (-387 ± 437 g vs 233 ± 351 g, P = .1, respectively).LimitationsAnimal experiments.ConclusionsEndoscopic omentectomy is safe and feasible and has the potential to treat obesity and metabolic syndrome. Near-total VF removal is required to achieve net weight loss and improvement of metabolic syndrome.Copyright © 2011 American Society for Gastrointestinal Endoscopy. Published by Mosby, Inc. All rights reserved.

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