Gastric bypass prevents diabetes in genetically modified mice and chemically induced diabetic mice.

Obese subjects have increase probabilities of developing type 2 diabetes (T2D). In this study, we sought to determine whether gastric bypass prevents the progression of prediabetes to overt diabetes in genetically modified mice and chemically induced diabetic mice. Roux-en-Y gastric bypass (RYGB) wa...

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Autores principales:	Chenyu Zhu, Rui Xu, Yuxin Li, Michael Andrade, Deng Ping Yin
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/48ed9b1aace84ddb83c25d8d48249702
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spelling	oai:doaj.org-article:48ed9b1aace84ddb83c25d8d482497022021-12-02T20:16:37ZGastric bypass prevents diabetes in genetically modified mice and chemically induced diabetic mice.1932-620310.1371/journal.pone.0258942https://doaj.org/article/48ed9b1aace84ddb83c25d8d482497022021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0258942https://doaj.org/toc/1932-6203Obese subjects have increase probabilities of developing type 2 diabetes (T2D). In this study, we sought to determine whether gastric bypass prevents the progression of prediabetes to overt diabetes in genetically modified mice and chemically induced diabetic mice. Roux-en-Y gastric bypass (RYGB) was performed in C57BL/KsJ-db/db null (BKS-db/db,) mice, high-fat diet (HFD)-fed NONcNZO10/LtJ (NZO) mice, C57BL/6 db/db null (B6-db/db) mice and streptozotocin (STZ)-induced diabetic mice. Food consumption, body weight, fat mass, fast blood glucose level, circulating insulin and adiponectin and glucose tolerance test were analyzed. The liver and pancreatic tissues were subjected to H&E and immunohistochemistry staining and islet cells to flow cytometry for apoptotic analysis. RYGB resulted in sustained normoglycemia and improved glucose tolerance in young prediabetic BKS-db/db mice (at the age of 6 weeks with hyperglycemia and normal insulinemia) and HFD-fed NZO and B6-db/db mice. Remarkably, RYGB improved liver steatosis, preserved the pancreatic β-cells and reduced β-cell apoptosis with increases in circulating insulin and adiponectin in young prediabetic BKS-db/db mice. However, RYGB neither reversed hyperglycemia in adult diabetic BKS-db/db mice (12 weeks old) nor attenuated hyperglycemia in STZ-induced diabetic mice. These results demonstrate that gastric bypass improves hyperglycemia in genetically modified prediabetic mice; however, it should be performed prior to β-cells exhaustion.Chenyu ZhuRui XuYuxin LiMichael AndradeDeng Ping YinPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 10, p e0258942 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chenyu Zhu Rui Xu Yuxin Li Michael Andrade Deng Ping Yin Gastric bypass prevents diabetes in genetically modified mice and chemically induced diabetic mice.
description	Obese subjects have increase probabilities of developing type 2 diabetes (T2D). In this study, we sought to determine whether gastric bypass prevents the progression of prediabetes to overt diabetes in genetically modified mice and chemically induced diabetic mice. Roux-en-Y gastric bypass (RYGB) was performed in C57BL/KsJ-db/db null (BKS-db/db,) mice, high-fat diet (HFD)-fed NONcNZO10/LtJ (NZO) mice, C57BL/6 db/db null (B6-db/db) mice and streptozotocin (STZ)-induced diabetic mice. Food consumption, body weight, fat mass, fast blood glucose level, circulating insulin and adiponectin and glucose tolerance test were analyzed. The liver and pancreatic tissues were subjected to H&E and immunohistochemistry staining and islet cells to flow cytometry for apoptotic analysis. RYGB resulted in sustained normoglycemia and improved glucose tolerance in young prediabetic BKS-db/db mice (at the age of 6 weeks with hyperglycemia and normal insulinemia) and HFD-fed NZO and B6-db/db mice. Remarkably, RYGB improved liver steatosis, preserved the pancreatic β-cells and reduced β-cell apoptosis with increases in circulating insulin and adiponectin in young prediabetic BKS-db/db mice. However, RYGB neither reversed hyperglycemia in adult diabetic BKS-db/db mice (12 weeks old) nor attenuated hyperglycemia in STZ-induced diabetic mice. These results demonstrate that gastric bypass improves hyperglycemia in genetically modified prediabetic mice; however, it should be performed prior to β-cells exhaustion.
format	article
author	Chenyu Zhu Rui Xu Yuxin Li Michael Andrade Deng Ping Yin
author_facet	Chenyu Zhu Rui Xu Yuxin Li Michael Andrade Deng Ping Yin
author_sort	Chenyu Zhu
title	Gastric bypass prevents diabetes in genetically modified mice and chemically induced diabetic mice.
title_short	Gastric bypass prevents diabetes in genetically modified mice and chemically induced diabetic mice.
title_full	Gastric bypass prevents diabetes in genetically modified mice and chemically induced diabetic mice.
title_fullStr	Gastric bypass prevents diabetes in genetically modified mice and chemically induced diabetic mice.
title_full_unstemmed	Gastric bypass prevents diabetes in genetically modified mice and chemically induced diabetic mice.
title_sort	gastric bypass prevents diabetes in genetically modified mice and chemically induced diabetic mice.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/48ed9b1aace84ddb83c25d8d48249702
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Gastric bypass prevents diabetes in genetically modified mice and chemically induced diabetic mice.

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