This study aimed to investigate the effects of infant feces-derived Bifidobacterium breve CCFM1078 on rheumatoid cachexia(RC).Twenty-four female Wistar rats were assigned to 3 groups:CON group(normal saline by gavage)...This study aimed to investigate the effects of infant feces-derived Bifidobacterium breve CCFM1078 on rheumatoid cachexia(RC).Twenty-four female Wistar rats were assigned to 3 groups:CON group(normal saline by gavage),CIA group(collagen-induced arthritis(CIA),normal saline by gavage),and CCFM1078 group(CIA,3×10^(9)CFU/(rat·day)B.breve CCFM1078 gavage).The results demonstrated that B.breve CCFM1078 not only improved skeletal muscle function in CIA rats,but also modulated the gut microbiota,skeletal muscle metabolism and hormone levels,reduced inflammation in the knee joint and skeletal muscles,decreased activity of the nuclear factor κB(NF-κB)inflammatory signaling pathway,enhanced the insulin receptor substrate 1(IRS1)/phosphatidylinositol 3-kinase/protein kinase(PI3K/Akt)signaling pathway,promoted skeletal muscle differentiation,and maintained skeletal muscle fiber diameter,consequently slowing down the progression of RC.These findings suggested that B.breve CCFM1078 may have a beneficial role as part of a dietary intervention for RC,enhancing overall therapeutic effects.展开更多
目的:探讨针刺对2型糖尿病(T2DM)大鼠肝组织胰岛素受体底物1和2基因(IRS1和2mRNA)表达的影响。方法:给食源性肥胖大鼠腹腔注射小剂量链脲佐菌素(STZ)(25mg/kg)造模成T2DM大鼠,随机分为针刺组、优降糖组和模型组,处理4周后,用快速血糖仪...目的:探讨针刺对2型糖尿病(T2DM)大鼠肝组织胰岛素受体底物1和2基因(IRS1和2mRNA)表达的影响。方法:给食源性肥胖大鼠腹腔注射小剂量链脲佐菌素(STZ)(25mg/kg)造模成T2DM大鼠,随机分为针刺组、优降糖组和模型组,处理4周后,用快速血糖仪检测空腹血糖(FBS)、用放免法检测空腹胰岛素(FINS)、用实时定量荧光PCR(real-tim e RT PCR)法检测肝组织IRS1和2mRNA表达,并与正常组大鼠进行对照。结果:针刺组和优降糖组FBS和FINS比模型组显著降低(P<0.05);模型组IRS1mRNA相对含量是正常组的25%,针刺组为正常组的2.83倍,优降糖组为正常组的1.23倍。模型组IRS2mRNA相对含量为正常组的2.19倍,针刺组IRS2mRNA相对含量为正常组的4.84%,优降糖组IRS2mRNA相对含量为正常组的4.59倍。结论:肝组织IRS1和2mRNA表达异常可能是T2DM的发病机制之一,针刺和优降糖均可上调T2DM大鼠肝组织IRS1mRNA的表达,针刺对T2DM大鼠肝组织IRS1 mRNA表达的上调作用优于优降糖;针刺具有显著抑制T2DM大鼠肝组织IRS2mRNA表达的作用,而优降糖无此作用。展开更多
基金supported by the National Natural Science Foundation of China(32021005)111 project(BP0719028)the Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province.
文摘This study aimed to investigate the effects of infant feces-derived Bifidobacterium breve CCFM1078 on rheumatoid cachexia(RC).Twenty-four female Wistar rats were assigned to 3 groups:CON group(normal saline by gavage),CIA group(collagen-induced arthritis(CIA),normal saline by gavage),and CCFM1078 group(CIA,3×10^(9)CFU/(rat·day)B.breve CCFM1078 gavage).The results demonstrated that B.breve CCFM1078 not only improved skeletal muscle function in CIA rats,but also modulated the gut microbiota,skeletal muscle metabolism and hormone levels,reduced inflammation in the knee joint and skeletal muscles,decreased activity of the nuclear factor κB(NF-κB)inflammatory signaling pathway,enhanced the insulin receptor substrate 1(IRS1)/phosphatidylinositol 3-kinase/protein kinase(PI3K/Akt)signaling pathway,promoted skeletal muscle differentiation,and maintained skeletal muscle fiber diameter,consequently slowing down the progression of RC.These findings suggested that B.breve CCFM1078 may have a beneficial role as part of a dietary intervention for RC,enhancing overall therapeutic effects.
文摘目的:探讨针刺对2型糖尿病(T2DM)大鼠肝组织胰岛素受体底物1和2基因(IRS1和2mRNA)表达的影响。方法:给食源性肥胖大鼠腹腔注射小剂量链脲佐菌素(STZ)(25mg/kg)造模成T2DM大鼠,随机分为针刺组、优降糖组和模型组,处理4周后,用快速血糖仪检测空腹血糖(FBS)、用放免法检测空腹胰岛素(FINS)、用实时定量荧光PCR(real-tim e RT PCR)法检测肝组织IRS1和2mRNA表达,并与正常组大鼠进行对照。结果:针刺组和优降糖组FBS和FINS比模型组显著降低(P<0.05);模型组IRS1mRNA相对含量是正常组的25%,针刺组为正常组的2.83倍,优降糖组为正常组的1.23倍。模型组IRS2mRNA相对含量为正常组的2.19倍,针刺组IRS2mRNA相对含量为正常组的4.84%,优降糖组IRS2mRNA相对含量为正常组的4.59倍。结论:肝组织IRS1和2mRNA表达异常可能是T2DM的发病机制之一,针刺和优降糖均可上调T2DM大鼠肝组织IRS1mRNA的表达,针刺对T2DM大鼠肝组织IRS1 mRNA表达的上调作用优于优降糖;针刺具有显著抑制T2DM大鼠肝组织IRS2mRNA表达的作用,而优降糖无此作用。
