In our previous study,we found that Shoutai pills could improve the embryo implantation rate as well as the levels of estrogen,progesterone and estrogen receptor in rats with stimulated ovulation.However,the mechanism...In our previous study,we found that Shoutai pills could improve the embryo implantation rate as well as the levels of estrogen,progesterone and estrogen receptor in rats with stimulated ovulation.However,the mechanism is not clear.This study was designed to investigate the effect of Shoutai pills on the levels of Th1 and Th2 cytokines in rats with stimulated ovulation and the mechanism.The rat model of stimulated ovulation was established by combined injection of pregnant mare serum gonadotropin(PMSG)and human chorionic gonadotropin(HCG).Then the rats were randomly divided into model group(M),Shoutai pills group(S),progesterone group(P)and normal group(N).All the pregnant rats were treated from the first day.The S and P groups were administrated with gavage of Shoutai pills and injection of progesterone respectively,and N and M groups were given the same volume of normal saline and distilled water respectively.After treatment for 7 days,the animals were executed for serum and uterine tissues.The ELISA method was adopted to detect the contents of Thl cytokines[interferon-γ(INF-γ),interleukin-2(IL-2)]and Th2 cytokines(IL-4,IL-6,IL-10).The expression of leukemia inhibitory factor(L1F)and leukemia inhibitory factor receptor(LIFR)was detected by Western blotting and real-time PCR.As compared with N group,the expression levels of IFN-y and IL-2 in M group were significantly increased,and those of IL-4,IL-6,IL-10.LIF and LIFR were significantly decreased(P<0.05).As compared with M group,the levels of IL-4,IL-6,IL-10,LIF and LIFR in S group were significantly increased(P<0.05),and those of IFN-γand IL-2 were significantly decreased(P<0.05).It was suggested that Shoutai pills can increase the levels of IL-4.1L-6,IL-10,LIF and LIFR as well as reduce the levels of INF-γand IL-2 in rats with stimulated ovulation.The Shoutai pills may improve endometrial receptivity and promote embryo implantation by maintaining the balanee of Th1/Th2 cytokines.展开更多
for about 20%of all clinically confirmed pregnancy.It is the main cause of early abortion.Vaginal bleeding is the main clinical manifestation,which seriously affects the mental health and quality of life of pregnant w...for about 20%of all clinically confirmed pregnancy.It is the main cause of early abortion.Vaginal bleeding is the main clinical manifestation,which seriously affects the mental health and quality of life of pregnant women.Currently,there is effective treatment for this condition.A recent meta-analysis showed that Shoutai Pill(ST Pill),a traditional Chinese medicine(TCM)formula,can effectively decrease the rate of threatened abortion.However,high heterogeneity was found among the studies included in the meta-analysis,this conclusion on the efficacy of TCM is not definitive.Although several have been conducted,some of them do not describe randomization and blinding methods.To address these problems,this article proposes an improved clinical treatment scheme based on ST Pill,which is to be tested through a well-designed randomized controlled trial,for the treatment of threatened abortion.Methods:This is a double-blinded,randomized,placebo-controlled trial to be conducted in a public Three-A hospital in China's Mainland.A total of 200 people will be enrolled.Using computer-generated random numbers,the participants will be randomly divided into two groups at a ratio of 1:1(treatment group(treated with ST Pill group)and placebo group).Both groups will receive medication to the end of the 20th gestational week or 1 week after vaginal bleeding stops,depending on which is longer.Participants in the treatment group will be treated with ST Pill(20 pills/time,once a day),and those in the placebo group will receive a placebo drug which is similar in appearance and smell with ST Pill.The main observation index is the live birth rate.Discussion:Although the efficacy of ST Pill in threatened abortion is well-known,no study has tested its efficacy through a double-blinded,randomized trials.Therefore,there is an urgent need for a standardized randomized double-blinded controlled trial to evaluate the clinical efficacy of ST Pill.ST Pill is likely to be a convenient and effective TCM pill for the prevention of threatened abortion.展开更多
文摘In our previous study,we found that Shoutai pills could improve the embryo implantation rate as well as the levels of estrogen,progesterone and estrogen receptor in rats with stimulated ovulation.However,the mechanism is not clear.This study was designed to investigate the effect of Shoutai pills on the levels of Th1 and Th2 cytokines in rats with stimulated ovulation and the mechanism.The rat model of stimulated ovulation was established by combined injection of pregnant mare serum gonadotropin(PMSG)and human chorionic gonadotropin(HCG).Then the rats were randomly divided into model group(M),Shoutai pills group(S),progesterone group(P)and normal group(N).All the pregnant rats were treated from the first day.The S and P groups were administrated with gavage of Shoutai pills and injection of progesterone respectively,and N and M groups were given the same volume of normal saline and distilled water respectively.After treatment for 7 days,the animals were executed for serum and uterine tissues.The ELISA method was adopted to detect the contents of Thl cytokines[interferon-γ(INF-γ),interleukin-2(IL-2)]and Th2 cytokines(IL-4,IL-6,IL-10).The expression of leukemia inhibitory factor(L1F)and leukemia inhibitory factor receptor(LIFR)was detected by Western blotting and real-time PCR.As compared with N group,the expression levels of IFN-y and IL-2 in M group were significantly increased,and those of IL-4,IL-6,IL-10.LIF and LIFR were significantly decreased(P<0.05).As compared with M group,the levels of IL-4,IL-6,IL-10,LIF and LIFR in S group were significantly increased(P<0.05),and those of IFN-γand IL-2 were significantly decreased(P<0.05).It was suggested that Shoutai pills can increase the levels of IL-4.1L-6,IL-10,LIF and LIFR as well as reduce the levels of INF-γand IL-2 in rats with stimulated ovulation.The Shoutai pills may improve endometrial receptivity and promote embryo implantation by maintaining the balanee of Th1/Th2 cytokines.
文摘for about 20%of all clinically confirmed pregnancy.It is the main cause of early abortion.Vaginal bleeding is the main clinical manifestation,which seriously affects the mental health and quality of life of pregnant women.Currently,there is effective treatment for this condition.A recent meta-analysis showed that Shoutai Pill(ST Pill),a traditional Chinese medicine(TCM)formula,can effectively decrease the rate of threatened abortion.However,high heterogeneity was found among the studies included in the meta-analysis,this conclusion on the efficacy of TCM is not definitive.Although several have been conducted,some of them do not describe randomization and blinding methods.To address these problems,this article proposes an improved clinical treatment scheme based on ST Pill,which is to be tested through a well-designed randomized controlled trial,for the treatment of threatened abortion.Methods:This is a double-blinded,randomized,placebo-controlled trial to be conducted in a public Three-A hospital in China's Mainland.A total of 200 people will be enrolled.Using computer-generated random numbers,the participants will be randomly divided into two groups at a ratio of 1:1(treatment group(treated with ST Pill group)and placebo group).Both groups will receive medication to the end of the 20th gestational week or 1 week after vaginal bleeding stops,depending on which is longer.Participants in the treatment group will be treated with ST Pill(20 pills/time,once a day),and those in the placebo group will receive a placebo drug which is similar in appearance and smell with ST Pill.The main observation index is the live birth rate.Discussion:Although the efficacy of ST Pill in threatened abortion is well-known,no study has tested its efficacy through a double-blinded,randomized trials.Therefore,there is an urgent need for a standardized randomized double-blinded controlled trial to evaluate the clinical efficacy of ST Pill.ST Pill is likely to be a convenient and effective TCM pill for the prevention of threatened abortion.
