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Deleterious Metabolic Effects of High Fructose Intake: The Preventive Effect of Lactobacillus kefiri Administration

Neuroendocrinology Laboratory, Multidisciplinary Institute of Cellular Biology (IMBICE, CICPBA-CONICET-UNLP), 526 10 y 11, La Plata 1900, Argentina
Biology Department, School of Exact Sciences, Universidad Nacional de La Plata, La Plata 1900, Argentina
Cátedra de Microbiología, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), 47 y 115 s/n, La Plata 1900, Argentina
Authors to whom correspondence should be addressed.
Nutrients 2017, 9(5), 470;
Received: 27 February 2017 / Revised: 13 April 2017 / Accepted: 3 May 2017 / Published: 17 May 2017
Modern lifestyle and diets have been associated with metabolic disorders and an imbalance in the normal gut microbiota. Probiotics are widely known for their health beneficial properties targeting the gut microbial ecosystem. The aim of our study was to evaluate the preventive effect of Lactobacillus kefiri (L. kefiri) administration in a fructose-rich diet (FRD) mice model. Mice were provided with tap water or fructose-added (20% w/v) drinking water supplemented or not with L. kefiri. Results showed that probiotic administration prevented weight gain and epidydimal adipose tissue (EAT) expansion, with partial reversion of the adipocyte hypertrophy developed by FRD. Moreover, the probiotic prevented the increase of plasma triglycerides and leptin, together with the liver triglyceride content. Leptin adipocyte secretion was also improved by L. kefiri, being able to respond to an insulin stimulus. Glucose intolerance was partially prevented by L. kefiri treatment (GTT) and local inflammation (TNFα; IL1β; IL6 and INFγ) was completely inhibited in EAT. L. kefiri supplementation generated an impact on gut microbiota composition, changing Bacteroidetes and Firmicutes profiles. Overall, our results indicate that the administration of probiotics prevents the deleterious effects of FRD intake and should therefore be promoted to improve metabolic disorders. View Full-Text
Keywords: gut microbiota; fructose-rich diet; adipose tissue; probiotics gut microbiota; fructose-rich diet; adipose tissue; probiotics
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Zubiría, M.G.; Gambaro, S.E.; Rey, M.A.; Carasi, P.; Serradell, M.D.Á.; Giovambattista, A. Deleterious Metabolic Effects of High Fructose Intake: The Preventive Effect of Lactobacillus kefiri Administration. Nutrients 2017, 9, 470.

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