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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Fructose Consumption by Adult Rats Exposed to Dexamethasone In Utero Changes the Phenotype of Intestinal Epithelial Cells and Exacerbates Intestinal Gluconeogenesis

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Pereira, Gizela A. [1] ; Sodre, Frhancielly S. [1] ; Murata, Gilson M. [1] ; Amaral, Andressa G. [1] ; Payolla, Tanyara B. [1] ; Campos, Carolina V. [2] ; Sato, Fabio T. [1] ; Anhe, Gabriel F. [2] ; Bordin, Silvana [1]
Total Authors: 9
[1] Univ Sao Paulo, Inst Biomed Sci, Dept Physiol & Biophys, BR-05508000 Sao Paulo, SP - Brazil
[2] Univ Estadual Campinas, Fac Med Sci, Dept Pharmacol, BR-13083887 Campinas, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: NUTRIENTS; v. 12, n. 10 OCT 2020.
Web of Science Citations: 1

Fructose consumption by rodents modulates both hepatic and intestinal lipid metabolism and gluconeogenesis. We have previously demonstrated that in utero exposure to dexamethasone (DEX) interacts with fructose consumption during adult life to exacerbate hepatic steatosis in rats. The aim of this study was to clarify if adult rats born to DEX-treated mothers would display differences in intestinal gluconeogenesis after excessive fructose intake. To address this issue, female Wistar rats were treated with DEX during pregnancy and control (CTL) mothers were kept untreated. Adult offspring born to CTL and DEX-treated mothers were assigned to receive either tap water (Control-Standard Chow (CTL-SC) and Dexamethasone-Standard Chow (DEX-SC)) or 10% fructose in the drinking water (CTL-fructose and DEX-fructose). Fructose consumption lasted for 80 days. All rats were subjected to a 40 h fasting before sample collection. We found that DEX-fructose rats have increased glucose and reduced lactate in the portal blood. Jejunum samples of DEX-fructose rats have enhanced phosphoenolpyruvate carboxykinase (PEPCK) expression and activity, higher facilitated glucose transporter member 2 (GLUT2) and facilitated glucose transporter member 5 (GLUT5) content, and increased villous height, crypt depth, and proliferating cell nuclear antigen (PCNA) staining. The current data reveal that rats born to DEX-treated mothers that consume fructose during adult life have increased intestinal gluconeogenesis while recapitulating metabolic and morphological features of the neonatal jejunum phenotype. (AU)

FAPESP's process: 13/07607-8 - OCRC - Obesity and Comorbidities Research Center
Grantee:Licio Augusto Velloso
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 19/03196-0 - Molecular mechanisms involved in the metabolic inflexibility of rats submitted to metabolic programming induced by prenatal excess of glucocorticoids
Grantee:Silvana Auxiliadora Bordin da Silva
Support type: Regular Research Grants