Entamoeba muris mitigates metabolic consequences of high-fat diet in mice
Autor: | Maryline Roy, Anne Dumay, Sandrine Adiba, Sylvana Rozes, Seiki Kobayashi, Valérie Paradis, Catherine Postic, Dominique Rainteau, Eric Ogier-Denis, Maud Le Gall, Ulrich Meinzer, Emilie Viennois, Maite Casado-Bedmar, Alexis Mosca, Jean-Pierre Hugot |
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Jazyk: | angličtina |
Rok vydání: | 2024 |
Předmět: | |
Zdroj: | Gut Microbes, Vol 16, Iss 1 (2024) |
Druh dokumentu: | article |
ISSN: | 19490976 1949-0984 1949-0976 |
DOI: | 10.1080/19490976.2024.2409210 |
Popis: | Metabolic syndrome (MetS) is a cluster of several human conditions including abdominal obesity, hypertension, dyslipidemia, and hyperglycemia, all of which are risk factors of type 2 diabetes, cardiovascular disease, and metabolic dysfunction-associated steatotic liver disease (MASLD). Dietary pattern is a well-recognized MetS risk factor, but additional changes related to the modern Western life-style may also contribute to MetS. Here we hypothesize that the disappearance of amoebas in the gut plays a role in the emergence of MetS in association with dietary changes. Four groups of C57B/6J mice fed with a high-fat diet (HFD) or a normal diet (ND) were colonized or not with Entamoeba muris, a commensal amoeba. Seventy days after inoculation, cecal microbiota, and bile acid compositions were analyzed by high-throughput sequencing of 16S rDNA and mass spectrometry, respectively. Cytokine concentrations were measured in the gut, liver, and mesenteric fat looking for low-grade inflammation. The impact of HFD on liver metabolic dysfunction was explored by Oil Red O staining, triglycerides, cholesterol concentrations, and the expression of genes involved in β-oxidation and lipogenesis. Colonization with E. muris had a beneficial impact, with a reduction in dysbiosis, lower levels of fecal secondary bile acids, and an improvement in hepatic steatosis, arguing for a protective role of commensal amoebas in MetS and more specifically HFD-associated MASLD. |
Databáze: | Directory of Open Access Journals |
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