the food contaminant deoxynivalenol provokes metabolic impairments resulting in non-alcoholic fatty liver (NAFL) in mice

Autor: Jean-Denis Troadec, Kevin Poirot, Michel Dallaporta, Stéphanie Gaigé, Coraline Airault, Anne Abysique, Rym Barbouche
Přispěvatelé: Laboratoire de Neurosciences Cognitives [Marseille] (LNC), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Male
0301 basic medicine
Physiology
medicine.medical_treatment
Adipose tissue
Environmental impact
Mice
Non-alcoholic Fatty Liver Disease
2. Zero hunger
Multidisciplinary
Fatty Acids
Fatty liver
Gastroenterology
Endoplasmic Reticulum Stress
Immunohistochemistry
3. Good health
Liver
Toxicity
Lipogenesis
Cytokines
Medicine
Inflammation Mediators
Oxidation-Reduction
Glycogen
medicine.medical_specialty
Lipolysis
Science
[SDV.TOX.TVM]Life Sciences [q-bio]/Toxicology/Vegetal toxicology and mycotoxicology
Food Contamination
[SDV.TOX.TCA]Life Sciences [q-bio]/Toxicology/Toxicology and food chain
Hypoglycemia
Article
03 medical and health sciences
Internal medicine
medicine
Animals
030102 biochemistry & molecular biology
business.industry
Insulin
Lipid Metabolism
medicine.disease
Animal Feed
Hormones
Disease Models
Animal

Metabolism
030104 developmental biology
Endocrinology
Steatosis
Energy Metabolism
Trichothecenes
business
Biomarkers
Zdroj: Scientific Reports
Scientific Reports, Nature Publishing Group, 2020, 10, pp.12072. ⟨10.1038/s41598-020-68712-w⟩
Scientific Reports, Vol 10, Iss 1, Pp 1-19 (2020)
Scientific Reports, 2020, 10, pp.12072. ⟨10.1038/s41598-020-68712-w⟩
ISSN: 2045-2322
Popis: The ribotoxin deoxynivalenol (DON) is a trichothecene found on cereals responsible for mycotoxicosis in both humans and farm animals. DON toxicity is characterized by reduced food intake, diminished nutritional efficiency and immunologic effects. The present study was designed to further characterize the alterations in energy metabolism induced by DON intoxication. We demonstrated that acute DON intoxication triggered liver steatosis associated with an altered expression of genes related to lipids oxidation, lipogenesis and lipolysis. This steatosis was concomitant to anorexia, hypoglycemia and a paradoxical transient insulin release. DON treatment resulted also in stimulation of central autonomic network regulating sympathetic outflow and adrenaline and glucocorticoids secretion. Furthermore, an increased expression of genes linked to inflammation and reticulum endoplasmic stress was observed in the liver of DON-treated mice. Finally, we propose that lipids mobilization from adipose tissues (AT) induced by DON intoxication drives hepatic steatosis since (1) genes encoding lipolytic enzymes were up-regulated in AT and (2) plasma concentration of triglycerides (TGs) and non-esterified fatty acids were increased during DON intoxication. Altogether, these data demonstrate that DON induced hormonal and metabolic dysregulations associated with a spectrum of hepatic abnormalities, evocative of a non-alcoholic fatty liver disease.
Databáze: OpenAIRE