不同糖耐量个体氧化应激水平与胰岛β细胞第一时相分泌
功能的关系
李永玲;邓华聪;糜公仆;秦登优;龙健;冯正平
【期刊名称】《中华内分泌代谢杂志》 【年(卷),期】2011(027)003
【摘要】探讨不同糖耐量个体氧化应激与β细胞第一时相分泌功能的关系.比较各组8-羟基脱氧尿苷(8-OHdG)、丙二醛、超氧化物歧化酶(SOD)、脂联素、0～10 min胰岛素曲线下面积(AUC)、急性胰岛素反应(AIR3-5)等指标.发现随病情发展,氧化应激指标水平升高,抗氧化酶活性、脂联素及β细胞第一时相分泌功能下降,丙二醛、8-OHdG与脂联素、稳态模型评估的胰岛β细胞功能指数(HOMA-β)、AUC、AIR3-5负相关,SOD与脂联素、HOMA-β、AUC、AIR3-5正相关,8-OHdG、SOD是AIR3-5的独立相关因素.氧化应激对β细胞第一时相分泌功能有显著影响,可能与2型糖尿病的发病机制密切相关.%The relationship between oxidative stress and the first-phase of pancreatic β cell insulin secretion in subjects with different statuses of glucose tolerance was explored. Fasting adiponectin, 8-hydroxydeoxyguanosin ( 8-OHdG), malondialdehyde ( MDA ), superoxide dismutase ( SOD ), insulin area under the curve ( AUC ) from 0 to 10 min, and AIR3-5 were measured. The levels of oxidative stress-related markers were elevated, the activities of superoxide dismutase,adiponectin, and first-phase of insulin secretion were reduced with the disease progression. MDA and 8-OHdG were negatively correlated with adiponectin, homeostasis
不同糖耐量个体氧化应激水平与胰岛β细胞第一时相分泌功能的关系
