目的:探讨血清及胆汁中视黄醇结合蛋白4(retinol binding protein 4,RBP4)的浓度与胰岛素抵抗、血脂异常、胆汁胆固醇饱和指数(cholesterol saturation index,CSI)之间的关系。方法:将住院手术治疗胆囊结石的患者随机分为糖尿病组和对照...目的:探讨血清及胆汁中视黄醇结合蛋白4(retinol binding protein 4,RBP4)的浓度与胰岛素抵抗、血脂异常、胆汁胆固醇饱和指数(cholesterol saturation index,CSI)之间的关系。方法:将住院手术治疗胆囊结石的患者随机分为糖尿病组和对照组,每组30例。采用ELISA法检测糖尿病组和对照组血清及胆汁中RBP4的浓度,酶比色法测定胆汁胆固醇、胆汁酸和磷脂的含量,采用Carey表计算胆汁CSI,分析血清及胆汁中RBP4水平与各项指标的相关性,并对相关指标进行多元线性回归分析。结果:糖尿病组血清及胆汁中RBP4的浓度均显著高于对照组(均P<0.01)。两组血清总胆汁酸(total bile acid,TBA),TG,HDL,以及胆汁TBA,TC,磷脂及CSI之间的差异均无统计学意义(均P>0.05)。糖尿病组血清TC,LDL,空腹血糖(fasting blood glucose,FBG)、空腹胰岛素(fasting insulin,FINS)以及稳态模型评估的胰岛素抵抗指数(homeostasis model assessment for insulin resistance index,HOMA-IR)均高于对照组,差异均有统计学意义(均P<0.05)。校正年龄影响后的偏相关分析表明:胆汁RBP4与体质量指数(body mass index,BMI),腰围(waist circumference,WC),空腹血清胰岛素(fast serum insulin,FINS),FBG,TC,LDL,HOMA-IR呈正相关(分别r=0.283,0.405,0.685,0.667,0.553,0.424,0.735);血清RBP4与WC,FINS,FBG,TC,LDL,HOMA-IR呈正相关(分别r=0.317,0.734,0.609,0.528,0.386,0.751);逐步法多元线性回归分析表明HOMA-IR,BMI,WC与胆汁RBP4水平独立相关(回归方程如下:Y胆汁RBP4=2.372XHOMA-IR+0.420XBMI+0.178XWC-26.813);HOMA-IR,WC与血清RBP4水平独立相关(回归方程如下:Y血清RBP4=2.832XHOMA-IR+0.235XWC-20.128),HOMA-IR与RBP4的相关性最强。结论:糖尿病组血清及胆汁中RBP4的浓度显著高于对照组;HOMA-IR,BMI,WC与胆汁RBP4呈独立相关;HOMA-IR,WC与血清RBP4呈独立相关;HOMA-IR与RBP4的相关性最强。RBP4可能在2型糖尿病合并胆囊结石的发展过程中起着重要作用。展开更多
Aim To study the effect of Semen litchi effective part group （SLEPG） on insulin resistance in human adi- pocyte. Methods Primary adipocyte was obtained from fat tissue in liposuction patient and insulin resistance m...Aim To study the effect of Semen litchi effective part group （SLEPG） on insulin resistance in human adi- pocyte. Methods Primary adipocyte was obtained from fat tissue in liposuction patient and insulin resistance model was built up with dexamethasone induction. Gop-pod method was used to determine glucose in culture supematant and RT-PCR was used to assay RETN of treated cells. Results SLEPG increased the glucose consumption and ab- sorption in dexamethasone-induced insulin resistance in primary adipocyte culture. SLEC inhibited the mRNA expres- sion of RETN significantly. Conclusions SLEPG might improve insulin resistance in mature adipocyte.展开更多
文摘目的:以多囊卵巢综合征(polycystic ovary syndrome,PCOS)人群为研究对象,通过构建包含补体C3的胰岛素敏感性(insulin sensitivity,IS)评分模型,探索一种简便易行的方法对PCOS患者的IR进行评估。方法:纳入99名PCOS患者及116名年龄匹配的正常女性,测量人体参数及空腹血生化指标(胰岛素、hs-CRP、补体C3等),计算稳态模型胰岛素抵抗指数(homeostasis model assessment of insulin resistance,HOMA2-IR)。对所有PCOS患者及其中20名正常对照行高胰岛素-正葡萄糖钳夹术,结果以M值表示。在PCOS组中,采用多元线性回归,以M值为应变量,以BMI、LDL-C、补体C3、超敏C反应蛋白、空腹血清胰岛素为自变量,建立IS评分(即M值的预测值)模型方程,用ROC曲线评估该模型诊断IR的价值。结果:IS评分=19.36-0.35×BMI-2.28×C3(R^2=0.54,P=0.000)。IS评分和HOMA2-IR诊断PCOS患者IR的ROC曲线下面积分别为0.89(95%CI=0.82~0.96)和0.75(95%CI=0.64~0.86),当IS评分=8.93时,其诊断PCOS患者IR的灵敏度和特异度分别为0.70和0.95,Youden指数0.63。当HOMA2-IR=0.47时,其诊断的灵敏度和特异度分别为0.60和0.88,Youden指数0.47。结论:包含补体C3的IS评分模型评估PCOS人群的IR具有较好的诊断价值。
文摘目的:探讨血清及胆汁中视黄醇结合蛋白4(retinol binding protein 4,RBP4)的浓度与胰岛素抵抗、血脂异常、胆汁胆固醇饱和指数(cholesterol saturation index,CSI)之间的关系。方法:将住院手术治疗胆囊结石的患者随机分为糖尿病组和对照组,每组30例。采用ELISA法检测糖尿病组和对照组血清及胆汁中RBP4的浓度,酶比色法测定胆汁胆固醇、胆汁酸和磷脂的含量,采用Carey表计算胆汁CSI,分析血清及胆汁中RBP4水平与各项指标的相关性,并对相关指标进行多元线性回归分析。结果:糖尿病组血清及胆汁中RBP4的浓度均显著高于对照组(均P<0.01)。两组血清总胆汁酸(total bile acid,TBA),TG,HDL,以及胆汁TBA,TC,磷脂及CSI之间的差异均无统计学意义(均P>0.05)。糖尿病组血清TC,LDL,空腹血糖(fasting blood glucose,FBG)、空腹胰岛素(fasting insulin,FINS)以及稳态模型评估的胰岛素抵抗指数(homeostasis model assessment for insulin resistance index,HOMA-IR)均高于对照组,差异均有统计学意义(均P<0.05)。校正年龄影响后的偏相关分析表明:胆汁RBP4与体质量指数(body mass index,BMI),腰围(waist circumference,WC),空腹血清胰岛素(fast serum insulin,FINS),FBG,TC,LDL,HOMA-IR呈正相关(分别r=0.283,0.405,0.685,0.667,0.553,0.424,0.735);血清RBP4与WC,FINS,FBG,TC,LDL,HOMA-IR呈正相关(分别r=0.317,0.734,0.609,0.528,0.386,0.751);逐步法多元线性回归分析表明HOMA-IR,BMI,WC与胆汁RBP4水平独立相关(回归方程如下:Y胆汁RBP4=2.372XHOMA-IR+0.420XBMI+0.178XWC-26.813);HOMA-IR,WC与血清RBP4水平独立相关(回归方程如下:Y血清RBP4=2.832XHOMA-IR+0.235XWC-20.128),HOMA-IR与RBP4的相关性最强。结论:糖尿病组血清及胆汁中RBP4的浓度显著高于对照组;HOMA-IR,BMI,WC与胆汁RBP4呈独立相关;HOMA-IR,WC与血清RBP4呈独立相关;HOMA-IR与RBP4的相关性最强。RBP4可能在2型糖尿病合并胆囊结石的发展过程中起着重要作用。
文摘Aim To study the effect of Semen litchi effective part group （SLEPG） on insulin resistance in human adi- pocyte. Methods Primary adipocyte was obtained from fat tissue in liposuction patient and insulin resistance model was built up with dexamethasone induction. Gop-pod method was used to determine glucose in culture supematant and RT-PCR was used to assay RETN of treated cells. Results SLEPG increased the glucose consumption and ab- sorption in dexamethasone-induced insulin resistance in primary adipocyte culture. SLEC inhibited the mRNA expres- sion of RETN significantly. Conclusions SLEPG might improve insulin resistance in mature adipocyte.
