PMID- 23923076 OWN - NLM STAT- MEDLINE DCOM- 20140321 LR - 20211021 IS - 1936-2625 (Electronic) IS - 1936-2625 (Linking) VI - 6 IP - 8 DP - 2013 TI - Butyrate alleviates metabolic impairments and protects pancreatic beta cell function in pregnant mice with obesity. PG - 1574-84 AB - The relative or absolute deficiency of pancreatic beta-cell mass function underlies the pathogenesis of diabetes. It is necessary to alleviate the metabolic stress and reduce the demand for insulin to decrease the effects of mutations affecting beta-cell expansion. Butyrate is a natural nutrient existed in food and can also be produced physiologically through the intestinal fermentation of fiber. Pregnancy and obesity model would be helpful for understanding how beta-cell adapt to insulin resistance and how butyrate alleviate the metabolic impairment and protect pancreatic beta cell function in pregnant mice with obesity. C57BL/6J female mice were divided into three groups and fed with high fat food (HF group, 40% energy from fat), high fat with sodium butyrate food (HSF group, 95% HF with 5% butyrate), or control food (CF group, 14% energy from fat), respectively. The feeding would last for 14 weeks before mating and throughout the gestation period. A subset of dams were sacrificed at gestational day (GD) 14.5 to evaluate the changes of metabolism and beta-cell function, mass, proliferation and apoptosis, inflammatory reaction of islet from different diet. Pancreases were double immuno-labeled to assess the islet morphology, insulin expression, expression of proliferation gene PCNA and anti-apoptosis gene bcl-2. Moreover, we detected the expression of NF-kappaB, phosphorylated NF-kappaB (pNF-kappaB) to evaluate the islet inflammatory response with immunohistochemistry. Mice fed with HSF showed obviously changes including the decreased values of weight gain, glucose, insulin, triglyceride and total cholesterol level of blood compared with high fat diet group, and the reduced circulating maternal pro-inflammation factors at GD14.5. Mice fed with HF displayed beta-cell hyperplasia with a greater beta-cell size and beta-cell area in pancreas. Furthermore, the higher ratio of apoptosis and inflammatory response were found in HF group compared with HSF and CF group, while the proliferation rates of beta-cell increased in HF group, but not in HSF or CF. Butyrate shows an obvious function of anti-obesity, and can alleviate the metabolic stress, maintain the beta-cell function and protect them from inflammatory response in pregnant obese mouse without obvious fetus toxicity. FAU - Li, Hua-Ping AU - Li HP AD - Department of Gynecology & Obstetrics, the 6th People's Hospital affiliated to Shanghai Jiaotong University, Shanghai 200233, China. hpli819@sohu.com FAU - Chen, Xuan AU - Chen X FAU - Li, Ming-Qing AU - Li MQ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130715 PL - United States TA - Int J Clin Exp Pathol JT - International journal of clinical and experimental pathology JID - 101480565 RN - 0 (Butyrates) SB - IM MH - Animals MH - Butyrates/*metabolism/pharmacology MH - Diet, High-Fat/adverse effects MH - Female MH - Fluorescent Antibody Technique MH - Insulin Resistance/*physiology MH - Insulin-Secreting Cells/drug effects/*metabolism/pathology MH - Mice MH - Mice, Inbred C57BL MH - Obesity/*metabolism MH - Pregnancy MH - Pregnancy Complications/*metabolism PMC - PMC3726973 OTO - NOTNLM OT - GDM OT - Sodium butyrate OT - diabetes OT - pancreatic islet OT - beta-cell EDAT- 2013/08/08 06:00 MHDA- 2014/03/22 06:00 PMCR- 2013/07/15 CRDT- 2013/08/08 06:00 PHST- 2013/06/18 00:00 [received] PHST- 2013/07/08 00:00 [accepted] PHST- 2013/08/08 06:00 [entrez] PHST- 2013/08/08 06:00 [pubmed] PHST- 2014/03/22 06:00 [medline] PHST- 2013/07/15 00:00 [pmc-release] PST - epublish SO - Int J Clin Exp Pathol. 2013 Jul 15;6(8):1574-84. Print 2013.