• Nutrition · May 2020

    Intestinal lymphatic alteration in mouse models of energy imbalance.

    • Nicolas Lucas, Saida Azhar, Alexis Procida, Camille Deroissart, Manon Dominique, Séverine Nobis, Charlène Guérin, Fatima Léon, Jean-Claude do Rego, Jonathan Breton, Moïse Coëffier, and Romain Legrand.
    • TargEDys SA, University of Rouen, Rouen, France.
    • Nutrition. 2020 May 1; 73: 110714.

    AbstractIn obesity or anorexia, changes in body composition and mostly alterations in fat mass distribution are observed. The lymphatic system, which is implicated in fat absorption, might play a major role in the phenotype and development of these pathologies. In this study, two mice animal models were used: the high-fat diet model used for obesity and the activity-based anorexia model for anorexia. Lymphatic system marker levels were measured by reverse transcriptase quantitative polymerase chain reaction on the different parts of the intestine. Moreover, the effects of these models were evaluated on lymphatic fat absorption using lipidic tracer. Using these two models, lymphatic system alterations were observed. Indeed, whether in the obesity or the anorectic model, lymphatic fat absorption modifications were noticed with an increase of this parameter in the anorectic mice and a decrease in obesity. Expression levels of lymphatic markers also were impaired in these models. Both obesity and anorectic models induced lymphatic system alterations mainly in the jejunum and ileum parts of the intestine. These alterations are associated with lipid absorption modifications.Copyright © 2019 Elsevier Inc. All rights reserved.

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