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GLP-1(7-36)对高糖状态下人脐静脉内皮细胞活性的影响及其机制的初步研究 被引量:1

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摘要 目的:研究GLP-1(7-36)对高糖培养人脐静脉内皮细胞(HUVECs)活性的影响及相关机制.方法:正糖(5mmol/l)和高糖(33mmol/l)环境下培养的HUVECs分别加入不同浓度的GLP-1(7-36)(0nmol/l,0.3nmol/l,3nmol/l,30nmol/l)并干预不同时间(24h,48h,72h)后行MTT检测细胞活力.选择某个合适的GLP-1(7-36)干预浓度和时间后继续行一氧化氮(NO)浓度检测.结果:①高糖培养48h、72h分别较正糖培养48h、72h细胞活力下降(p〈0.05),②高糖培养环境下经3 nmol/l、30nmol/l浓度 GLP-1(7-36)分别干预48h、72h后较高糖对照组细胞活力显著增加(p〈0.01),而正常糖培养环境下分别加入不同浓度GLP-1(7-36)干预不同时间后均与正糖对照组细胞活力无差异,③高糖培养48h较正糖培养下细胞培养上清液中NO的量下降,高糖组加入3nmol/l的GLP-1(7-36)后NO的量增加,正糖组中加入3nmol/l的GLP-1(7-36)后NO产量不变.结论:GLP-1(7-36)可以改善高糖引起的HUVECs活力的下降,且该保护作用与NO相关.
出处 《医学信息(下旬刊)》 2011年第4期3-4,共2页 Medical information
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