Objective To evaluate the association of GGN repeat polymorphism of androgen receptor(AR)with ovarian reserve and ovarian response in controlled ovarian stimulation(COS).Methods This genetic association study was cond...Objective To evaluate the association of GGN repeat polymorphism of androgen receptor(AR)with ovarian reserve and ovarian response in controlled ovarian stimulation(COS).Methods This genetic association study was conducted among a total of 361 women aged≤40 years with basal FSH≤12 U/L undergoing the GnRH-agonist long protocol for COS in a university affiliated IVF center.GGN repeat in the AR gene was analyzed with Sanger sequencing.The primary endpoint was the number of antral follicle counts(AFCs),and the secondary endpoints were stimulation days,total dose of gonadotropin(Gn)used,total number of retrieved oocytes,ovarian sensitivity index,and follicular output rate.Results The GGN repeat in exon 1 of the AR gene ranged from 13 to 24,and the median repeat length was 22.Based on the genotypes(S for GGN repeats<22,L for GGN repeats≥22),the patients were divided into 3 groups:SS,SL,and LL.Generalized regression analysis indicated that the number of AFCs in group SS was significantly lower than those in group SL(adjusted β=1.8,95%CI:0.2-3.4,P=0.024)and group LL(adjusted β=1.5,95%CI:0.2-2.7,P=0.021).No significant difference was observed in the number of AFCs between group SL and group LL(P>0.05).Generalized regression analysis indicated no significant differences in ovarian stimulation parameters among the 3 groups,either before or after adjusting for confounding factors(P>0.05).Conclusion GGN repeat length on the AR gene is associated with AFC but not with ovarian response in Chinese women,indicating that AR gene polymorphisms may affect ovarian reserve.展开更多
目的:探讨乙肝病毒S蛋白(HBs)与人精子体外共孵育不同时间后人精子胞膜完整性及功能的变化情况。方法:人精子与25μg/m L HBs共孵育0、1、2、3、4 h后,酶标仪检测精子细胞内丙二醛(MDA)含量;Annexin V-FITC/PI双染法检测HBs对精子早期...目的:探讨乙肝病毒S蛋白(HBs)与人精子体外共孵育不同时间后人精子胞膜完整性及功能的变化情况。方法:人精子与25μg/m L HBs共孵育0、1、2、3、4 h后,酶标仪检测精子细胞内丙二醛(MDA)含量;Annexin V-FITC/PI双染法检测HBs对精子早期凋亡指标磷脂酰丝氨酸外翻情况,流式细胞术检测精子细胞内活性氧(ROS)、半胱氨酸蛋白酶-3,-8,-9(Caspase-3,-8,-9)活化,TUNEL结合流式细胞术检测精子DNA的损伤。结果:人精子与25μg/m L HBs共孵育后,MDA水平、ROS阳性精子、Annexin V+/PI-精子、Caspase-3,-8,-9阳性精子比率、TUNEL阳性精子比率显著升高,且Annexin V+/PI-精子、Caspase-8,-9阳性精子比率、TUNEL阳性精子比率的升高与HBs呈时间依赖趋势。结论:HBs蛋白与人精子共孵育时间增长可加剧对人精子功能的损伤。展开更多
文摘Objective To evaluate the association of GGN repeat polymorphism of androgen receptor(AR)with ovarian reserve and ovarian response in controlled ovarian stimulation(COS).Methods This genetic association study was conducted among a total of 361 women aged≤40 years with basal FSH≤12 U/L undergoing the GnRH-agonist long protocol for COS in a university affiliated IVF center.GGN repeat in the AR gene was analyzed with Sanger sequencing.The primary endpoint was the number of antral follicle counts(AFCs),and the secondary endpoints were stimulation days,total dose of gonadotropin(Gn)used,total number of retrieved oocytes,ovarian sensitivity index,and follicular output rate.Results The GGN repeat in exon 1 of the AR gene ranged from 13 to 24,and the median repeat length was 22.Based on the genotypes(S for GGN repeats<22,L for GGN repeats≥22),the patients were divided into 3 groups:SS,SL,and LL.Generalized regression analysis indicated that the number of AFCs in group SS was significantly lower than those in group SL(adjusted β=1.8,95%CI:0.2-3.4,P=0.024)and group LL(adjusted β=1.5,95%CI:0.2-2.7,P=0.021).No significant difference was observed in the number of AFCs between group SL and group LL(P>0.05).Generalized regression analysis indicated no significant differences in ovarian stimulation parameters among the 3 groups,either before or after adjusting for confounding factors(P>0.05).Conclusion GGN repeat length on the AR gene is associated with AFC but not with ovarian response in Chinese women,indicating that AR gene polymorphisms may affect ovarian reserve.
文摘目的:探讨乙肝病毒S蛋白(HBs)与人精子体外共孵育不同时间后人精子胞膜完整性及功能的变化情况。方法:人精子与25μg/m L HBs共孵育0、1、2、3、4 h后,酶标仪检测精子细胞内丙二醛(MDA)含量;Annexin V-FITC/PI双染法检测HBs对精子早期凋亡指标磷脂酰丝氨酸外翻情况,流式细胞术检测精子细胞内活性氧(ROS)、半胱氨酸蛋白酶-3,-8,-9(Caspase-3,-8,-9)活化,TUNEL结合流式细胞术检测精子DNA的损伤。结果:人精子与25μg/m L HBs共孵育后,MDA水平、ROS阳性精子、Annexin V+/PI-精子、Caspase-3,-8,-9阳性精子比率、TUNEL阳性精子比率显著升高,且Annexin V+/PI-精子、Caspase-8,-9阳性精子比率、TUNEL阳性精子比率的升高与HBs呈时间依赖趋势。结论:HBs蛋白与人精子共孵育时间增长可加剧对人精子功能的损伤。
