摘要
目的考察非酒精性脂肪肝(nonalcoholic fatty liver,NAFLD)患者口服葡萄糖后胰高血糖素样肽(glucagonlikepeptide-1,GLP-1)和葡萄糖依赖性促胰岛素多肽(glucose-dependent insulinotropic ploypeptide,GIP)分泌的特征。方法选取34例非酒精性脂肪肝和42例健康人群,行口服糖耐量试验后在120 min内测定血GLP-1、GIP、血糖、血胰岛素、胰高血糖素含量进行比较。结果 NAFLD患者经葡萄糖诱导后GLP-1分泌量明显低于正常对照组(P<0.01),而GIP没有明显改变,但是所有患者均存在胰岛素抵抗。与正常对照组相比,NAFLD患者空腹胰岛素水平和葡萄糖诱导后的胰岛素水平均明显升高,血糖降低缓慢,而空腹胰高血糖素水平明显升高。结论 NAFLD患者经葡萄糖诱导分泌GLP-1功能缺陷,GIP分泌无异常。NAFLD患者存在胰岛素抵抗、高胰岛素血症和胰高血糖素血症。
OBJECTIVE To determine the secretion of incretins after oral glucose administration in non-alcoholic liver disease(NAFLD) patients. METHODS Standardized oral glucose tolerance test was performed on patients with NAFLD(n=34) and healthy controls(n=42). Glucose, insulin, glucagon, glucagon-likepeptide-1(GLP-1) and glucose-dependent insulinotropic ploypeptide(GIP) plasma levels were measured sequentially for 120 minutes after glucose administration. RESULTS Glucose induced GLP-1 secretion was significantly decreased in patients compared with control group(P〈0.01). In contrast, GIP secretion was unchanged. All patients were insulin resistant. Fasting and glucose- induced insulin secretion was higher in NAFLD compared with control group, while the glucose lowering effect was diminished. Concomitantly, fasting glucagon secretion was significantly elevated in NAFLD. CONCLUSION Glucose-induced GLP-1 secretion is deficient in patients with NAFLD. GIP secretion is contrarily preserved. Insulin resistance, with hyperinsulinemia and hyperglucagonemia, is present in all patients.
出处
《中国现代应用药学》
CAS
CSCD
2016年第3期368-371,共4页
Chinese Journal of Modern Applied Pharmacy
关键词
非酒精性脂肪肝
口服葡萄糖耐量试验
胰高血糖素样肽
葡萄糖依赖性促胰岛素多肽
分泌特征
nonalcoholic fatty liver disease
oral glucose tolerance test
glucagon-likepeptide-1
glucose-dependent insulinotropic ploypeptide
secretion characteristics