目的:观察西格列汀与瑞格列奈对2型糖尿病(diabetes mellitus type 2,T2DM)肠病患者血糖控制和胃肠激素的调节作用效果.方法:将30例门诊糖尿病肠病患者随机分为西格列汀组和瑞格列奈组,每组15例.西格列汀组给予口服磷酸西格列汀100 mg,1...目的:观察西格列汀与瑞格列奈对2型糖尿病(diabetes mellitus type 2,T2DM)肠病患者血糖控制和胃肠激素的调节作用效果.方法:将30例门诊糖尿病肠病患者随机分为西格列汀组和瑞格列奈组,每组15例.西格列汀组给予口服磷酸西格列汀100 mg,1次/d,瑞格列奈组给予瑞格列奈片0.5 mg,3次/d,比较服药前后血糖控制效果和胃肠激素水平变化情况.结果:西格列汀组和瑞格列奈组治疗后糖化血红蛋白(hemoglobin A1c)、空腹血糖、餐后2 h血糖(2 h postprandial blood glucose,2 h PBG)均低于治疗前,差异有统计学意义(P<0.05);西格列汀组和瑞格列奈组治疗后血清胃动素(motilin,MTL)、胃泌素(gastrin,GAS)、生长抑素(somatostatin,SS)均低于治疗前,胰高血糖素样肽-1(glucagon-like peptide-1,GLP-1)高于治疗前,差异有统计学意义(P<0.05).治疗后西格列汀组患者MTL和GAS均低于瑞格列奈组,GLP-1高于瑞格列奈组,差异有统计学意义(P<0.05).结论:西格列汀和瑞格列奈均具有良好的控制血糖和促进胃肠功能的作用,西格列汀调节胃肠激素较瑞格列奈效果明显.展开更多
AIM:To explore whether human umbilical cord mesenchymal stem cell(hUCMSC)-derived exosomes(hUCMSC-Exos)protect rat retinal neurons in high-glucose(HG)conditions by activating the brain-derived neurotrophic factor(BDNF...AIM:To explore whether human umbilical cord mesenchymal stem cell(hUCMSC)-derived exosomes(hUCMSC-Exos)protect rat retinal neurons in high-glucose(HG)conditions by activating the brain-derived neurotrophic factor(BDNF)-Trk B pathway.METHODS:h UCMSC-Exos were collected with differential ultracentrifugation methods and observed by transmission electron microscopy.Enzyme-linked immunosorbent assays(ELISAs)was used to quantify BDNF in hUCMSC-Exos,and Western blot was used to identify surface markers of hUCMSC-Exos.Rat retinal neurons were divided into 4 groups.Furthermore,cell viability,cell apoptosis,and TrkB protein expression were measured in retinal neurons.RESULTS:hUCMSCs and isolated hUCMSC-Exos were successfully cultured.All hUCMSC-Exos showed a diameter of 30 to 150 nm and had a phospholipid bimolecular membrane structure,as observed by transmission electron microscopy.ELISA showed the BDNF concentration of hUCMSCs-Exos was 2483.16±281.75.hUCMSCs-Exos effectively reduced the apoptosis of retinal neuron rate and improved neuron survival rate,meanwhile,the results of immunofluorescence verified the fluorescence intensity of TrKB in neurons increased.And all above effects were reduced by treated hUCMSCs-Exos with BDNF inhibitors.hUCMSC-Exos effectively reduced the apoptosis rate of retinal neurons by activating the BDNF-TrkB pathway in a HG environment.CONCLUSION:In the HG environment,hUCMSC-Exos could carry BDNF into rat retinal neurons,inhibiting neuronal apoptosis by activating the BDNF-TrkB pathway.展开更多
文摘目的:观察西格列汀与瑞格列奈对2型糖尿病(diabetes mellitus type 2,T2DM)肠病患者血糖控制和胃肠激素的调节作用效果.方法:将30例门诊糖尿病肠病患者随机分为西格列汀组和瑞格列奈组,每组15例.西格列汀组给予口服磷酸西格列汀100 mg,1次/d,瑞格列奈组给予瑞格列奈片0.5 mg,3次/d,比较服药前后血糖控制效果和胃肠激素水平变化情况.结果:西格列汀组和瑞格列奈组治疗后糖化血红蛋白(hemoglobin A1c)、空腹血糖、餐后2 h血糖(2 h postprandial blood glucose,2 h PBG)均低于治疗前,差异有统计学意义(P<0.05);西格列汀组和瑞格列奈组治疗后血清胃动素(motilin,MTL)、胃泌素(gastrin,GAS)、生长抑素(somatostatin,SS)均低于治疗前,胰高血糖素样肽-1(glucagon-like peptide-1,GLP-1)高于治疗前,差异有统计学意义(P<0.05).治疗后西格列汀组患者MTL和GAS均低于瑞格列奈组,GLP-1高于瑞格列奈组,差异有统计学意义(P<0.05).结论:西格列汀和瑞格列奈均具有良好的控制血糖和促进胃肠功能的作用,西格列汀调节胃肠激素较瑞格列奈效果明显.
基金Supported by Tianjin Science and Technology Project of China(No.14JCYBJC27400)Science and Technology Fund of Tianjin Eye Hospital(No.YKZD1901No.YKYB1905)。
文摘AIM:To explore whether human umbilical cord mesenchymal stem cell(hUCMSC)-derived exosomes(hUCMSC-Exos)protect rat retinal neurons in high-glucose(HG)conditions by activating the brain-derived neurotrophic factor(BDNF)-Trk B pathway.METHODS:h UCMSC-Exos were collected with differential ultracentrifugation methods and observed by transmission electron microscopy.Enzyme-linked immunosorbent assays(ELISAs)was used to quantify BDNF in hUCMSC-Exos,and Western blot was used to identify surface markers of hUCMSC-Exos.Rat retinal neurons were divided into 4 groups.Furthermore,cell viability,cell apoptosis,and TrkB protein expression were measured in retinal neurons.RESULTS:hUCMSCs and isolated hUCMSC-Exos were successfully cultured.All hUCMSC-Exos showed a diameter of 30 to 150 nm and had a phospholipid bimolecular membrane structure,as observed by transmission electron microscopy.ELISA showed the BDNF concentration of hUCMSCs-Exos was 2483.16±281.75.hUCMSCs-Exos effectively reduced the apoptosis of retinal neuron rate and improved neuron survival rate,meanwhile,the results of immunofluorescence verified the fluorescence intensity of TrKB in neurons increased.And all above effects were reduced by treated hUCMSCs-Exos with BDNF inhibitors.hUCMSC-Exos effectively reduced the apoptosis rate of retinal neurons by activating the BDNF-TrkB pathway in a HG environment.CONCLUSION:In the HG environment,hUCMSC-Exos could carry BDNF into rat retinal neurons,inhibiting neuronal apoptosis by activating the BDNF-TrkB pathway.