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| Lubaczeuski,C.; Balbo,S.L.; Ribeiro,R.A.; Vettorazzi,J.F.; Santos-Silva,J.C.; Carneiro,E.M.; Bonfleur,M.L.. |
| The parasympathetic nervous system is important for β-cell secretion and mass regulation. Here, we characterized involvement of the vagus nerve in pancreatic β-cell morphofunctional regulation and body nutrient homeostasis in 90-day-old monosodium glutamate (MSG)-obese rats. Male newborn Wistar rats received MSG (4 g/kg body weight) or saline [control (CTL) group] during the first 5 days of life. At 30 days of age, both groups of rats were submitted to sham-surgery (CTL and MSG groups) or subdiaphragmatic vagotomy (Cvag and Mvag groups). The 90-day-old MSG rats presented obesity, hyperinsulinemia, insulin resistance, and hypertriglyceridemia. Their pancreatic islets hypersecreted insulin in response to glucose but did not increase insulin release upon... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Β-Cell; Obesity; Parasympathetic nervous system. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000500447 |
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| Cantelli,K.R.; Soares,G.M.; Ribeiro,R.A.; Balbo,S.L.; Lubaczeuski,C.; Boschero,A.C.; Araújo,A.C.F.; Bonfleur,M.L.. |
| Modifications in life-style and/or pharmacotherapies contribute to weight loss and ameliorate the metabolic profile of diet-induced obese humans and rodents. Since these strategies fail to treat hypothalamic obesity, we have assessed the possible mechanisms by which duodenal-jejunal bypass (DJB) surgery regulates hepatic lipid metabolism and the morphophysiology of pancreatic islets, in hypothalamic obese (HyO) rats. During the first 5 days of life, male Wistar rats received subcutaneous injections of monosodium glutamate (4 g/kg body weight, HyO group), or saline (CTL). At 90 days of age, HyO rats were randomly subjected to DJB (HyO DJB group) or sham surgery (HyO Sham group). HyO Sham rats were morbidly obese, insulin resistant, hypertriglyceridemic and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Duodenal-jejunal bypass; Hepatic fatty acid metabolism; Hypothalamic obesity; Ki67; Insulin secretion. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000500601 |
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