Behcet’s In this study, we examined peripheral insulin resistance in patients with disease (BD) characterized by chronic inflammation and endothelial dysfunction. Fourteen patients with BD and 15 healthy controls wer...Behcet’s In this study, we examined peripheral insulin resistance in patients with disease (BD) characterized by chronic inflammation and endothelial dysfunction. Fourteen patients with BD and 15 healthy controls were recruited to the study. Insulin resistance was investigated by the hyperinsulinaemiceuglycaemic glucose clamp technique. BD patients displayed an enhanced rate of insulin resistance compared to healthy controls (P = 0.014). The insulin sensitivity (M), measured as the glucose utilization rate under steady-state conditions of euglycaemia, was significantly decreased (P =0.001) in BD patients compared to the controls (4.09±0.16 vs. 5.60±0.27 mg/kg/ min). The C-reactive protein (CRP) level, but not the erythrocyte sedimentation rate (ESR), was significantly related to the presence of insulin resistance (CRP: rs = 0.589, P = 0.27; ESR: rs= 0444, P = 0112), whereas no relationship was found between the M-value and ESR or CRP. We conclude that patients with BD exhibit peripheral insulin resistance; this could be explained as the diverse consequences of inflammation and endothelial dysfunction in BD.展开更多
目的探讨内脂素基因过表达对高脂诱导胰岛素抵抗(IR)大鼠胰岛素敏感性的影响。方法构建大鼠内脂素基因真核表达质粒,并用该质粒转染高脂喂养诱导的IR大鼠模型。在转染前后采用两次高胰岛素-正糖钳夹技术评价大鼠胰岛素敏感性的变化...目的探讨内脂素基因过表达对高脂诱导胰岛素抵抗(IR)大鼠胰岛素敏感性的影响。方法构建大鼠内脂素基因真核表达质粒,并用该质粒转染高脂喂养诱导的IR大鼠模型。在转染前后采用两次高胰岛素-正糖钳夹技术评价大鼠胰岛素敏感性的变化。结果成功构建了内脂素真核表达载体pcDNA3.1内脂素。实验组大鼠在pcDNA3.1内脂素质粒注射后3d血浆内脂素水平较注射前明显升高(2.19±0.36 vs 0.98±0.27,P〈0.01);在两次胰岛素钳夹中,pcDNA3.1内脂素质粒注射后葡萄糖输注率较注射前明显升高[(32.6±1.2)mg·kg^-1·min^-1 vs (24.0±1.2)mg·kg^-1·min^-1,P〈0.01];总胆固醇、高密度脂蛋白胆固醇则较质粒注射前明显降低[(2.36±0.22)mmol/L vs (1.60±0.21)mmol/L和(1.41±0.24)mmol/L vs(0.88±0.11)mmol/L,均P〈0.05];在转染前后基础血糖和胰岛素水平无明显变化。结论内脂素质粒转染使IR大鼠血浆内脂素水平升高,胰岛素敏感性增强。展开更多
文摘Behcet’s In this study, we examined peripheral insulin resistance in patients with disease (BD) characterized by chronic inflammation and endothelial dysfunction. Fourteen patients with BD and 15 healthy controls were recruited to the study. Insulin resistance was investigated by the hyperinsulinaemiceuglycaemic glucose clamp technique. BD patients displayed an enhanced rate of insulin resistance compared to healthy controls (P = 0.014). The insulin sensitivity (M), measured as the glucose utilization rate under steady-state conditions of euglycaemia, was significantly decreased (P =0.001) in BD patients compared to the controls (4.09±0.16 vs. 5.60±0.27 mg/kg/ min). The C-reactive protein (CRP) level, but not the erythrocyte sedimentation rate (ESR), was significantly related to the presence of insulin resistance (CRP: rs = 0.589, P = 0.27; ESR: rs= 0444, P = 0112), whereas no relationship was found between the M-value and ESR or CRP. We conclude that patients with BD exhibit peripheral insulin resistance; this could be explained as the diverse consequences of inflammation and endothelial dysfunction in BD.
文摘目的探讨内脂素基因过表达对高脂诱导胰岛素抵抗(IR)大鼠胰岛素敏感性的影响。方法构建大鼠内脂素基因真核表达质粒,并用该质粒转染高脂喂养诱导的IR大鼠模型。在转染前后采用两次高胰岛素-正糖钳夹技术评价大鼠胰岛素敏感性的变化。结果成功构建了内脂素真核表达载体pcDNA3.1内脂素。实验组大鼠在pcDNA3.1内脂素质粒注射后3d血浆内脂素水平较注射前明显升高(2.19±0.36 vs 0.98±0.27,P〈0.01);在两次胰岛素钳夹中,pcDNA3.1内脂素质粒注射后葡萄糖输注率较注射前明显升高[(32.6±1.2)mg·kg^-1·min^-1 vs (24.0±1.2)mg·kg^-1·min^-1,P〈0.01];总胆固醇、高密度脂蛋白胆固醇则较质粒注射前明显降低[(2.36±0.22)mmol/L vs (1.60±0.21)mmol/L和(1.41±0.24)mmol/L vs(0.88±0.11)mmol/L,均P〈0.05];在转染前后基础血糖和胰岛素水平无明显变化。结论内脂素质粒转染使IR大鼠血浆内脂素水平升高,胰岛素敏感性增强。