维生素D与胰岛细胞功能关系的研究进展
2015-06-17钟丽娣池莲祥等
钟丽娣 池莲祥等
[摘要] 维生素D是经典的钙磷代谢调节剂。胰岛素抵抗与胰岛β细胞功能受损引起胰岛素分泌缺陷和合成异常是2型糖尿病发病机制的主要特点。近年来国内外越来越多的研究表明,维生素D与2型糖尿病之间关系密切;许多基础研究和动物实验显示维生素D在糖尿病的发生发展过程中发挥着改善胰岛素抵抗、保护胰岛细胞以及调节人体免疫功能的作用。维生素D主要可通过以下3种方式来调控胰岛功能:抑制胰岛β细胞凋亡、促进胰岛β细胞分泌和削弱胰岛α细胞分泌。本篇文章就近年来维生素D与胰岛β细胞功能的相关性研究方面作一综述。
[关键词] 维生素D;维生素D受体;2型糖尿病;胰岛细胞功能
[中图分类号] R587.1 [文献标识码] A [文章编号] 1673-9701(2015)12-0157-04
Advanced on the relationship between vitamin D and islets function
ZHONG Lidi1 CHI Lianxiang2 NIE Lei3 NIE Bensui4 WAN Jiejun5
1.Guangdong Medical College in Guangdong Province, Zhanjiang 524023, China; 2.Department of Endocrinology, Baoan People's Hospital of Shenzhen City in Guangdong Province, Shenzhen 518101, China;3.Department of Endocrinology, Nanshan District People's Hospital of Shenzhen City in Guangdong Province, Shenzhen 518000, China; 4.Department of General Surgery, Bao'an People's Hospital of Shenzhen City in Guang dong Province, Shenzhen 518101, China; 5.Department of Endocrinology, Taiping People's Hospital of Dongguan City in Guangdong Province, Dongguan 523900, China
[Abstract] Vitamin D is classic metabolism regulator of the calcium and phosphorus. Type 2 diabetes is main characterized by insulin resistance and beta cell function impairment, which causes insulin secretion defects and synthesis abnormality. In recent years, studies found close relationship between vitamin D and type 2 diabetes; Many basic researches and animal experiments show that vitamin D can improve insulin resistance, protect islet beta cells and have immune regulation effects in the development of type 2 diabetes Diseases. Vitamin D can regulate and control islet function by inhibiting islet beta cell apoptosis, promoting the secretion of pancreatic beta cells and weakening the secretion of islet alpha cell. This paper reviewed the research progress in recent years on the correlation between vitamin D and islets function.
[Key words] Vitamin D; Vitamin D receptor; Diabetes; Islets function
调节人体内的钙磷代谢过程、促进细胞的生长和分化是维生素D传统的主要作用。近几十年来人们探索、研究发现维生素D还参与体内糖脂代谢、炎症反应及免疫调节功能等许多生物过程。维生素D与维生素D受体(vitamin D receptor,VDR)结合,是在人体内发挥作用的主要机制。因为机体内几乎每个细胞和组织包括大脑、心脏、胰腺、皮肤、脂肪组织等均含有VDR,所以,许多疾病的发生发展与维生素D相关。近年来,诸多临床研究及流行病学证据发现,维生素D与糖代谢异常疾病的发生、发展相关。更有研究表明,维生素D是糖尿病的保护因子,且对维持正常的糖代谢水平和正常的胰岛素分泌、合成必不可缺。维生素D在2型糖尿病的发生发展中起着重要的作用,主要通过促进胰岛素合成与分泌、增加对胰岛素的敏感性、抑制体内炎症反应及维生素D相关基因多态性等作用机制。……
