Objective:To investigate the protective mechanism of Xuduan Zhongzi prescription against epididymal oxidative damage in oligoasthenospermia model rats.Methods:Forty SD rats were randomly divided into blank group,model...Objective:To investigate the protective mechanism of Xuduan Zhongzi prescription against epididymal oxidative damage in oligoasthenospermia model rats.Methods:Forty SD rats were randomly divided into blank group,model group,Xuduan Zhongzi prescription group(10g/kg)and L-carnitine group(0.1g/kg).Except blank group,all induced oligoasmospermia.The blank group and model group were given normal saline intragastric administration,the Xuduan Zhongzi prescription group was given Xuduan Zhongzi prescription solution intragastric administration,and the L-carnitine group was given L-carnitine intragastric administration.HE staining was used to observe the epididymis structure after 8 weeks.The concentration and activity rate of epididymis sperm were measured by sperm quality.MRNA and protein expression levels of Nrf2,NQO1 andγ-GCs in epididymis were detected by RT-qPCR and immunohistochemistry.Results:①HE staining:in the blank group,the epididymis tubes were arranged tightly and regularly,the tissue structure was complete,the epithelial cells were arranged orderly,and the lumen sperm were numerous and evenly distributed.The epididymis of model group showed structural atrophy,loose arrangement,enlarged mesenchyme,increased cell debris and significantly reduced sperm cells.Compared with the model group,the lumen lesions of epididymis in Xuduan Zhongzi prescription group and L-carnitine group were significantly improved,and the amount of normal sperm in lumen was increased and the distribution was uniform.②Results of sperm quality comparison among each group:sperm density and sperm motility rate:compared with blank group,sperm density and sperm motility rate in other groups were significantly decreased(P<0.05),and sperm density and sperm motility rate in model group were significantly decreased(P<0.05);Compared with model group,the sperm density and motility rate in Xuduan Zhongzi prescription group and L-carnitine group were significantly increased(P<0.05).③RT-qPCR and immunohistochemistry:Compared with the blank group,the mRNA and protein levels of Nrf2,NQO1 andγ-GCs in epididymal rats in model group were significantly decreased(P<0.05),while the mRNA and protein levels of Nrf2,NQO1 andγ-GCs were significantly increased in L-carnitine group and Continua seed formula group(P<0.05).Conclusion:Xuduan Zhongzi prescription can reduce oxidative stress damage and improve sperm quality of oligoasthenospermia.The mechanism may related to promoting the activation of Nrf2-NQO1/γ-GCS pathway in epididymis of oligoasthenospermia rats,and up-regulate the expressions of Nrf2,NQO1 andγ-GCS proteins.展开更多
Objective:To study the effect of Buyi prescription combined with immunotherapy on PD-1/PD-L1 expression in peripheral blood T cells in patients with autoimmune hepatitis.Methods:56 patients with autoimmune hepatitis w...Objective:To study the effect of Buyi prescription combined with immunotherapy on PD-1/PD-L1 expression in peripheral blood T cells in patients with autoimmune hepatitis.Methods:56 patients with autoimmune hepatitis who were treated in our hospital between May 2014 and December 2016 were randomly divided into two groups with 28 patients in each group. The control group received prednisone combined with azathioprine for routine immunotherapy, and the observation group received Buyi prescription combined with prednisone and azathioprine therapy. 12 weeks after treatment, the serum was collected to determine the levels of liver damage marker molecules, liver fibrosis marker molecules and T cell-related cytokines, and the peripheral blood was collected to determine the PD-1 and PD-L1 expression in CD4+T cells. Results:12 weeks after treatment, fluorescence intensity of CD4+PD-1+ and CD4+PD-L1+T cells in the peripheral blood of the observation group were significantly lower than those of the control group;serum ALT,γ-GT, PC-III, C-IV, IFN-γ and IL-17 levels were significantly lower than those of the control group while IL-4 and IL-10 levels were significantly higher than those of the control group.Conclusion:Buyi prescription combined with immunotherapy can reduce the expression of PD-1/PD-L1, adjust the CD4+T cell function, reduce the liver damage, inhibit the liver fibrosis and treat AIH effectively.展开更多
基金The central government guides local science and technology development projects(No.Guike ZY20198022)Guangxi University of Traditional Chinese Medicine Graduate Education Innovation Program(No.YCSZ2020013,YCSY2020051,YCXJ2021067)。
文摘Objective:To investigate the protective mechanism of Xuduan Zhongzi prescription against epididymal oxidative damage in oligoasthenospermia model rats.Methods:Forty SD rats were randomly divided into blank group,model group,Xuduan Zhongzi prescription group(10g/kg)and L-carnitine group(0.1g/kg).Except blank group,all induced oligoasmospermia.The blank group and model group were given normal saline intragastric administration,the Xuduan Zhongzi prescription group was given Xuduan Zhongzi prescription solution intragastric administration,and the L-carnitine group was given L-carnitine intragastric administration.HE staining was used to observe the epididymis structure after 8 weeks.The concentration and activity rate of epididymis sperm were measured by sperm quality.MRNA and protein expression levels of Nrf2,NQO1 andγ-GCs in epididymis were detected by RT-qPCR and immunohistochemistry.Results:①HE staining:in the blank group,the epididymis tubes were arranged tightly and regularly,the tissue structure was complete,the epithelial cells were arranged orderly,and the lumen sperm were numerous and evenly distributed.The epididymis of model group showed structural atrophy,loose arrangement,enlarged mesenchyme,increased cell debris and significantly reduced sperm cells.Compared with the model group,the lumen lesions of epididymis in Xuduan Zhongzi prescription group and L-carnitine group were significantly improved,and the amount of normal sperm in lumen was increased and the distribution was uniform.②Results of sperm quality comparison among each group:sperm density and sperm motility rate:compared with blank group,sperm density and sperm motility rate in other groups were significantly decreased(P<0.05),and sperm density and sperm motility rate in model group were significantly decreased(P<0.05);Compared with model group,the sperm density and motility rate in Xuduan Zhongzi prescription group and L-carnitine group were significantly increased(P<0.05).③RT-qPCR and immunohistochemistry:Compared with the blank group,the mRNA and protein levels of Nrf2,NQO1 andγ-GCs in epididymal rats in model group were significantly decreased(P<0.05),while the mRNA and protein levels of Nrf2,NQO1 andγ-GCs were significantly increased in L-carnitine group and Continua seed formula group(P<0.05).Conclusion:Xuduan Zhongzi prescription can reduce oxidative stress damage and improve sperm quality of oligoasthenospermia.The mechanism may related to promoting the activation of Nrf2-NQO1/γ-GCS pathway in epididymis of oligoasthenospermia rats,and up-regulate the expressions of Nrf2,NQO1 andγ-GCS proteins.
文摘Objective:To study the effect of Buyi prescription combined with immunotherapy on PD-1/PD-L1 expression in peripheral blood T cells in patients with autoimmune hepatitis.Methods:56 patients with autoimmune hepatitis who were treated in our hospital between May 2014 and December 2016 were randomly divided into two groups with 28 patients in each group. The control group received prednisone combined with azathioprine for routine immunotherapy, and the observation group received Buyi prescription combined with prednisone and azathioprine therapy. 12 weeks after treatment, the serum was collected to determine the levels of liver damage marker molecules, liver fibrosis marker molecules and T cell-related cytokines, and the peripheral blood was collected to determine the PD-1 and PD-L1 expression in CD4+T cells. Results:12 weeks after treatment, fluorescence intensity of CD4+PD-1+ and CD4+PD-L1+T cells in the peripheral blood of the observation group were significantly lower than those of the control group;serum ALT,γ-GT, PC-III, C-IV, IFN-γ and IL-17 levels were significantly lower than those of the control group while IL-4 and IL-10 levels were significantly higher than those of the control group.Conclusion:Buyi prescription combined with immunotherapy can reduce the expression of PD-1/PD-L1, adjust the CD4+T cell function, reduce the liver damage, inhibit the liver fibrosis and treat AIH effectively.
