Background Estrogen might play an important role in type 2 diabetes mellitus pathogenesis. A number of polymorphisms have been reported in the estrogen receptor alpha （ERα） gene （also named ESR1）, including the ...Background Estrogen might play an important role in type 2 diabetes mellitus pathogenesis. A number of polymorphisms have been reported in the estrogen receptor alpha （ERα） gene （also named ESR1）, including the XbaⅠ and PvuⅡ restriction enzyme polymorphisms of ESR1, which may be involved in disease pathogenesis. The aim of this study was to determine whether ER0t gene polymorphisms are associated with type 2 diabetes mellitus and serum lipid level. Methods Two hundred and ninety-nine patients with type 2 diabetes mellitus were compared with three hundred and forty-one health controls of Guangzhou in China, both were male and postmenopausal female residents at 51--70 years. ESR1 genotyping was performed using polymerase chain reaction （PCR） and PvulI and XbaI restriction fragment length polymorphism （PCR-RFLP） analysis. Results ESR1 allelic frequencies of P, p and X, x alleles were 0.408, 0.592; 0.360, 0.640 in the type 2 diabetes mellitus group and 0.318, 0.682; 0.328, 0.672 in the control group, respectively. In case-control study, there was significant difference in PvuⅡ, but not XbaⅠ, allele frequency between the type 2 diabetes mellitus and control groups （P=0.001 and P=0.122）. When the group was separated into men and women, the difference was significant in women （P〈0.001） but not in men （P=0.854） with the PvulI genotype, and the effect of PvulI variant on the development of type 2 diabetes mellitus was improved with aging. In addition, PvulI genotype was associated with blood glucose [fasting blood glucose （FBG）, postprandial blood glucose （PBG）] and serum lipid [total cholesterol （TC） and low density lipoprotein （LDL）-c] concentration in healthy women. Conclusions PvuII polymorphism of ESRI increases susceptibifity to type 2 diabetes mellitus in Chinese Guangzhou women. ESR1 variants may also impact serum lipid metabolism, which might provide a mechanism connecting ESR1 to type 2 diabetes.展开更多
目的探讨生育期妇女子宫内膜息肉组织中雌激素受体α(ERα)、雌激素受体β(ERβ)、孕激素受体(PR)及Bcl-2的表达及意义。方法用免疫组织化学PV 6000法,检测110例子宫内膜息肉组织ERα、ERβ、PR及Bcl-2的表达,并采用Image Pro Plus 6.0...目的探讨生育期妇女子宫内膜息肉组织中雌激素受体α(ERα)、雌激素受体β(ERβ)、孕激素受体(PR)及Bcl-2的表达及意义。方法用免疫组织化学PV 6000法,检测110例子宫内膜息肉组织ERα、ERβ、PR及Bcl-2的表达,并采用Image Pro Plus 6.0图像分析软件进行分析。以45例正常子宫内膜作对照。结果在增殖期,内膜息肉组织中ERα及ERβ的表达水平与正常子宫内膜比较差异无统计学意义(P>0.05),而PR的表达水平低于正常内膜(t=2.589,P<0.05),Bcl-2的表达水平高于正常内膜(t=2.716,P<0.01)。在分泌期,内膜息肉组织中ER-α及Bcl-2表达水平高于正常子宫内膜,PR的表达水平低于正常子宫内膜,差异均有显著性(t=2.574、2.581、2.579,P<0.05),ERβ的表达水平与正常内膜比较差异无统计学意义(P>0.05)。结论ERα、Bcl-2的高表达和PR相应的低表达可能是子宫内膜息肉形成的病因,ERα可能是在子宫内膜息肉形成过程中发挥主要作用的雌激素受体亚型。展开更多
文摘Background Estrogen might play an important role in type 2 diabetes mellitus pathogenesis. A number of polymorphisms have been reported in the estrogen receptor alpha （ERα） gene （also named ESR1）, including the XbaⅠ and PvuⅡ restriction enzyme polymorphisms of ESR1, which may be involved in disease pathogenesis. The aim of this study was to determine whether ER0t gene polymorphisms are associated with type 2 diabetes mellitus and serum lipid level. Methods Two hundred and ninety-nine patients with type 2 diabetes mellitus were compared with three hundred and forty-one health controls of Guangzhou in China, both were male and postmenopausal female residents at 51--70 years. ESR1 genotyping was performed using polymerase chain reaction （PCR） and PvulI and XbaI restriction fragment length polymorphism （PCR-RFLP） analysis. Results ESR1 allelic frequencies of P, p and X, x alleles were 0.408, 0.592; 0.360, 0.640 in the type 2 diabetes mellitus group and 0.318, 0.682; 0.328, 0.672 in the control group, respectively. In case-control study, there was significant difference in PvuⅡ, but not XbaⅠ, allele frequency between the type 2 diabetes mellitus and control groups （P=0.001 and P=0.122）. When the group was separated into men and women, the difference was significant in women （P〈0.001） but not in men （P=0.854） with the PvulI genotype, and the effect of PvulI variant on the development of type 2 diabetes mellitus was improved with aging. In addition, PvulI genotype was associated with blood glucose [fasting blood glucose （FBG）, postprandial blood glucose （PBG）] and serum lipid [total cholesterol （TC） and low density lipoprotein （LDL）-c] concentration in healthy women. Conclusions PvuII polymorphism of ESRI increases susceptibifity to type 2 diabetes mellitus in Chinese Guangzhou women. ESR1 variants may also impact serum lipid metabolism, which might provide a mechanism connecting ESR1 to type 2 diabetes.
文摘目的探讨生育期妇女子宫内膜息肉组织中雌激素受体α(ERα)、雌激素受体β(ERβ)、孕激素受体(PR)及Bcl-2的表达及意义。方法用免疫组织化学PV 6000法,检测110例子宫内膜息肉组织ERα、ERβ、PR及Bcl-2的表达,并采用Image Pro Plus 6.0图像分析软件进行分析。以45例正常子宫内膜作对照。结果在增殖期,内膜息肉组织中ERα及ERβ的表达水平与正常子宫内膜比较差异无统计学意义(P>0.05),而PR的表达水平低于正常内膜(t=2.589,P<0.05),Bcl-2的表达水平高于正常内膜(t=2.716,P<0.01)。在分泌期,内膜息肉组织中ER-α及Bcl-2表达水平高于正常子宫内膜,PR的表达水平低于正常子宫内膜,差异均有显著性(t=2.574、2.581、2.579,P<0.05),ERβ的表达水平与正常内膜比较差异无统计学意义(P>0.05)。结论ERα、Bcl-2的高表达和PR相应的低表达可能是子宫内膜息肉形成的病因,ERα可能是在子宫内膜息肉形成过程中发挥主要作用的雌激素受体亚型。
