目的研究糖尿病视网膜病变(DR)患者血清视黄醇结合蛋白4(RBP4)和胱抑素C(Cys-C)水平,及其与DR的关系。方法选取2015年1月—2016年6月南通大学附属海安县人民医院内分泌科、眼科门诊及住院的2型糖尿病(T2DM)患者150例,根据检查结果,将其...目的研究糖尿病视网膜病变(DR)患者血清视黄醇结合蛋白4(RBP4)和胱抑素C(Cys-C)水平,及其与DR的关系。方法选取2015年1月—2016年6月南通大学附属海安县人民医院内分泌科、眼科门诊及住院的2型糖尿病(T2DM)患者150例,根据检查结果,将其分为无DR的患者50例(NDM组),糖尿病伴非增殖型DR患者50例(NPDR组),糖尿病伴增殖型DR患者50例(PDR组)。另选取同期本院体检正常者50例作为对照组。检测各组血清空腹血糖(FPG)、三酰甘油(TG)、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)及餐后2 h血糖(2 h PG)、糖化血红蛋白(Hb A1c)、RBP4和Cys-C水平。结果各组FPG、TG、TC、LDL-C、HDL-C、2 h PG、Hb A1c、RBP4、Cys-C水平比较,差异均有统计学意义(P<0.05);其中NPDR组患者FPG、TG、TC、2 hPG、HbA^(1c)、RBP4、Cys-C水平均高于NDM组,HDL-C水平低于NDM组;PDR组患者FPG、TC、2 h PG、Hb A1c、RBP4、Cys-C水平均高于NPDR组(P<0.05)。多因素Logistic回归分析结果显示,糖尿病病程[OR=3.128,95%CI(1.458,7.641)]、Hb A1c[OR=6.933,95%CI(1.604,29.962)]、RBP4[OR=2.746,95%CI(1.043,7.230)]、Cys-C[OR=3.062,95%CI(1.098,9.389)]是糖尿病患者发生DR的危险因素(P<0.05)。结论血清RBP4和Cys-C水平升高与DR的发生密切相关。展开更多
In order to explore the functions of retinol binding protein (RBP4) in regulation of gene expression, yeast two hybrid assay and transient co-transforming were used to detect the interactions between RBP4 and nuclear ...In order to explore the functions of retinol binding protein (RBP4) in regulation of gene expression, yeast two hybrid assay and transient co-transforming were used to detect the interactions between RBP4 and nuclear receptors and the effects of over-expressed RBP4 on trans-activation functions of human estrogen receptor related receptor 1 (hERR1) and human estrogen (hER). The requirement of activation function domain-2 (AF-2) for hER to interact with RBP4 was also detected by the yeast two hybrid assay. The results show that RBP4 could interact with many nuclear receptors including mouse estrogen receptor related receptor 3 (mERR3), retinoid X receptor (RXR), glucocorticoid receptor (GR), progestin receptor (PR), and androgen receptor (AR) in yeast cells. Over-expressed RBP4 could strongly enhance the trans-activation functions of hERR1 and hER in a dose-dependent manner, respectively. RBP4 could also interact with hER in an AF-2-dependent manner.展开更多
文摘目的研究糖尿病视网膜病变(DR)患者血清视黄醇结合蛋白4(RBP4)和胱抑素C(Cys-C)水平,及其与DR的关系。方法选取2015年1月—2016年6月南通大学附属海安县人民医院内分泌科、眼科门诊及住院的2型糖尿病(T2DM)患者150例,根据检查结果,将其分为无DR的患者50例(NDM组),糖尿病伴非增殖型DR患者50例(NPDR组),糖尿病伴增殖型DR患者50例(PDR组)。另选取同期本院体检正常者50例作为对照组。检测各组血清空腹血糖(FPG)、三酰甘油(TG)、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)及餐后2 h血糖(2 h PG)、糖化血红蛋白(Hb A1c)、RBP4和Cys-C水平。结果各组FPG、TG、TC、LDL-C、HDL-C、2 h PG、Hb A1c、RBP4、Cys-C水平比较,差异均有统计学意义(P<0.05);其中NPDR组患者FPG、TG、TC、2 hPG、HbA^(1c)、RBP4、Cys-C水平均高于NDM组,HDL-C水平低于NDM组;PDR组患者FPG、TC、2 h PG、Hb A1c、RBP4、Cys-C水平均高于NPDR组(P<0.05)。多因素Logistic回归分析结果显示,糖尿病病程[OR=3.128,95%CI(1.458,7.641)]、Hb A1c[OR=6.933,95%CI(1.604,29.962)]、RBP4[OR=2.746,95%CI(1.043,7.230)]、Cys-C[OR=3.062,95%CI(1.098,9.389)]是糖尿病患者发生DR的危险因素(P<0.05)。结论血清RBP4和Cys-C水平升高与DR的发生密切相关。
文摘In order to explore the functions of retinol binding protein (RBP4) in regulation of gene expression, yeast two hybrid assay and transient co-transforming were used to detect the interactions between RBP4 and nuclear receptors and the effects of over-expressed RBP4 on trans-activation functions of human estrogen receptor related receptor 1 (hERR1) and human estrogen (hER). The requirement of activation function domain-2 (AF-2) for hER to interact with RBP4 was also detected by the yeast two hybrid assay. The results show that RBP4 could interact with many nuclear receptors including mouse estrogen receptor related receptor 3 (mERR3), retinoid X receptor (RXR), glucocorticoid receptor (GR), progestin receptor (PR), and androgen receptor (AR) in yeast cells. Over-expressed RBP4 could strongly enhance the trans-activation functions of hERR1 and hER in a dose-dependent manner, respectively. RBP4 could also interact with hER in an AF-2-dependent manner.
