1. Modeling undernutrition with enteropathy in mice
- Author
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Moutaz Aziz, E. Salameh, Mamane Zeilani, Marine Jarbeau, Pierre Déchelotte, Rachel Marion-Letellier, Fanny B. Morel, Nutrition, inflammation et dysfonctionnement de l'axe intestin-cerveau (ADEN), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institute for Research and Innovation in Biomedicine (IRIB), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Nutriset, Service d'Anatomie et Cytologie Pathologique [CHU Rouen], Normandie Université (NU)-Normandie Université (NU)-CHU Rouen, Normandie Université (NU), Service de nutrition [CHU Rouen], CHU Rouen, Normandie Université (NU)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), and douville, sabine
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Male ,0301 basic medicine ,medicine.medical_specialty ,Science ,Inflammation ,Article ,Mice ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Intestine, Small ,medicine ,Animals ,Enteropathy ,Gastrointestinal models ,Wasting ,Growth Disorders ,Feces ,Caloric Restriction ,2. Zero hunger ,Multidisciplinary ,Intestinal permeability ,business.industry ,Malnutrition ,medicine.disease ,Pathophysiology ,3. Good health ,Mice, Inbred C57BL ,Disease Models, Animal ,Intestinal Diseases ,[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition ,030104 developmental biology ,Endocrinology ,Medicine ,030211 gastroenterology & hepatology ,medicine.symptom ,Calprotectin ,business ,[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition - Abstract
Undernutrition is a global health issue leading to 1 out 5 all deaths in children under 5 years. Undernutrition is often associated with environmental enteric dysfunction (EED), a syndrome associated with increased intestinal permeability and gut inflammation. We aimed to develop a novel murine model of undernutrition with these EED features. Post-weaning mice were fed with low-protein diet (LP) alone or combined with a gastrointestinal insult trigger (indomethacin or liposaccharides). Growth, intestinal permeability and inflammation were assessed. LP diet induced stunting and wasting in post-weaning mice but did not impact gut barrier. We therefore combined LP diet with a single administration of indomethacin or liposaccharides (LPS). Indomethacin increased fecal calprotectin production while LPS did not. To amplify indomethacin effects, we investigated its repeated administration in addition to LP diet and mice exhibited stunting and wasting with intestinal hyperpermeability and gut inflammation. The combination of 3-weeks LP diet with repeated oral indomethacin administration induced wasting, stunting and gut barrier dysfunction as observed in undernourished children with EED. As noninvasive methods for investigating gut function in undernourished children are scarce, the present pre-clinical model provides an affordable tool to attempt to elucidate pathophysiological processes involved in EED and to identify novel therapeutic strategies.
- Published
- 2020
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