摘要
Objective:This study aimed to evaluate the effects of acupuncture on embryo implantation and maternal–fetal immune tolerance in rats with ovarian hyperstimulation,identify the mechanisms of acupuncture treatment,and promote application of acupuncture in the field of assisted reproduction.Methods:Eighty female Wistar rats were randomized into normal(N),model(M),acupuncture treatment(A),and progesterone treatment(P)groups,with 20 rats in each group.An ovarian hyperstimulation model was established in groups M,A,and P by the peritoneal injection of pregnant mare serum gonadotropin(PMSG)combined with human chorionic gonadotropin(HCG).Bilateral“Sanyinjiao(SP6)”,“Zusanli(ST36)”and“Taichong(LR3)”as acupoints were needled in rats in group A.Rats in group P received an intramuscular injection of progesterone(4 mg/kg).All pregnant rats were treated for seven days.On the 8th day,the pregnant rats were sacrificed for testing.The expression levels of estrogen(E2)and progesterone(P4)in serum and their receptors in the endometrium,Th1 and Th2 cytokines in serum and endometrium,RT-BM1(the counterpart of HLA-G in rats)mRNA,Ly49 activating receptors(Ly49s3,Ly49s5)and inhibitory receptors(Ly49i3,Ly49i4,Ly49i5)on immunocytes in the maternal–fetal interface were detected using ELISA,Western blot,and real-time polymerase chain reaction(PCR).Results:Compared with group N,the pregnancy rate and the number of implanted embryos were significantly decreased in group M(P<0.05);E2 and P4 levels in serum,and the protein levels of ER-αand Progesterone Receptor(PGR)in the implantation site of endometrial tissue were significantly reduced in group M(P<0.05);the expression of INF-γand IL-2 in serum and endometrium were significantly increased,while the expression of IL-4,IL-6,and IL-10 in serum and endometrium were significantly decreased in group M(P<0.05).The mRNA levels of RT-BM1,Ly49i3,and Ly49i4 receptors in group M were significantly higher than those in group N,whereas the mRNA levels of Ly49i5 and Ly49s5 receptors in group M were significantly lower than those in group N at the maternal–fetal interface(P<0.05).The pregnancy rate and number of implanted embryos were significantly higher in group A than in group M(P<0.05).Serum E2 and P4 levels were significantly higher in groups A and P than in group M(P<0.05).The expression of ER-αand PGR in the implantation site of endometrial tissue in group A were significantly higher than those in group M(P<0.05).The serum levels of INF-γand IL-2 in group A and group P were significantly lower than those in group M(P<0.05).The serum expression of IL-4,IL-6,IL-10 in group A and group P were significantly higher than those in group M(P<0.05).The endometrium expression of INF-γand IL-2 in group A were significantly lower than those in group M(P<0.05).The endometrium expression of IL-4,IL-6,IL-10 in group A were significantly higher than those in group M(P<0.05).The endometrium expression of INF-γin group P were significantly lower than those in group M(P<0.05).The endometrium expression of IL-6 and IL-10 in group P were significantly higher than those in group M(P<0.05).The mRNA levels of RT-BM1 and these Ly49 receptors(except the Ly49s3 receptor)at the maternal–fetal interface of groups A and P were higher than those of group M(P<0.05).
作者
张金民
徐梦浩
许啸虎
郑翠红
Jin-min ZHANG;Meng-hao XU;Xiao-hu XU;Cui-hong ZHENG(Institute of Integrated Traditional Chinese and Western Medicine,Tongji Hospital of Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430030,China)
基金
Supported by grants from National Natural Science Foundation of China:81202757,81874388
Hubei Provincial Traditional Chinese and Western Medicine Clinical Collaboration Program on Major Diseases(Infertility)(2023):EWBT 2023-2。
