Background To evaluate the safety of intracytoplasmic sperm injection （ICSI） with epididymal or testicular sperm, this study compared children born after ICSI treatment with epididymal or testicular sperm with child...Background To evaluate the safety of intracytoplasmic sperm injection （ICSI） with epididymal or testicular sperm, this study compared children born after ICSI treatment with epididymal or testicular sperm with children conceived after ICSI with ejaculated sperm. Methods This retrospective study included 317 children born after ICSI with percutaneous epididymal sperm aspiration （PESA）, 103 children born after ICSI with testicular sperm aspiration （TESA）, and a control group of 1008 children born after ICSI with ejaculated sperm. All of the patients received their assisted reproductive treatment in the Reproductive Medicine Center of the First Affiliated Hospital of Zhengzhou University from January 2004 to December 2011. Data, such as the rate of stillbirths, perinatal mortality, gestational age, birth weight, and the rate of congenital malformations of the three groups, were compared. Results PESA and TESA children were not different from ICSI children in the rate of stillbirths, perinatal mortality, infant mortality rate, gestational age, the rate of prematurity, and the rate of malformations （P〉0.05）. A slight increase in birth defects was reported in the TESA group compared with those in the control group, but there was no significant difference between the groups （P〉0.05）. Conclusion ICSI with epididymal or testicutar sperm does not lead to more stillbirths or congenital malformations compared with ICSI using ejaculated sperm.展开更多
This experiment was designed to investigate leptin receptors (Ob-R and Ob-Rb) mRNA in ram epididymal spermatozoa by RT-PCR. Ten testes were obtained from abattoir and epididymal spermatozoa recovery was performed. To ...This experiment was designed to investigate leptin receptors (Ob-R and Ob-Rb) mRNA in ram epididymal spermatozoa by RT-PCR. Ten testes were obtained from abattoir and epididymal spermatozoa recovery was performed. To purify spermatozoa, motile sperm were isolated by the swim-up procedure. Total RNA was isolated from epididymal spermatozoa and placental cotyledon, as a positive control, and then they were purified. Specific bands (98 and 308 bp) for Ob-R and Ob-Rb were detected after RT-PCR in both epididymal spermatozoa and placental cotyledon. We may conclude that Ob-R and Ob-Rb mRNA are present in ram epididymal spermatozoa and leptin perhaps exerts physiological effects, as already demonstrated in human.展开更多
目的进一步纯化人精浆中与精子前向运动相关的蛋白并进行活性鉴定.方法运用ConA包被珠的蛋白质亲和层析技术及超滤技术对热处理后的人精浆进行蛋白分离,随后对获得的层析洗脱液经浓缩后进行聚丙酰胺凝胶电泳及Commassie Blue R-250染色...目的进一步纯化人精浆中与精子前向运动相关的蛋白并进行活性鉴定.方法运用ConA包被珠的蛋白质亲和层析技术及超滤技术对热处理后的人精浆进行蛋白分离,随后对获得的层析洗脱液经浓缩后进行聚丙酰胺凝胶电泳及Commassie Blue R-250染色,根据染色部位将电泳凝胶切割成5部分并获得各部分的蛋白浸出液.结果含第2和第3部分蛋白浸出液的实验组与公牛附睾头部精子及茶碱共同孵育后,与仅用茶碱的对照组相比,前者的精子前向运动值显著高于后者(P＜0.01).聚丙酰胺凝胶电泳及银染色分析显示,第2和第3部分蛋白的分子量分别介于85.0～135.0kDa及44.1～85.0 kDa之间;而SDS-聚丙酰胺凝胶电泳分析却发现:第2部分蛋白解离成分子量分别为89,74,18,16 kDa的条带痕迹,第3部分蛋白则解离成46.8和57.5k Da的亚基.结论人精浆中与精子前向运动相关蛋白的纯化及活性分析可能对了解该蛋白的结构和功能具有重要的意义.展开更多
文摘Background To evaluate the safety of intracytoplasmic sperm injection （ICSI） with epididymal or testicular sperm, this study compared children born after ICSI treatment with epididymal or testicular sperm with children conceived after ICSI with ejaculated sperm. Methods This retrospective study included 317 children born after ICSI with percutaneous epididymal sperm aspiration （PESA）, 103 children born after ICSI with testicular sperm aspiration （TESA）, and a control group of 1008 children born after ICSI with ejaculated sperm. All of the patients received their assisted reproductive treatment in the Reproductive Medicine Center of the First Affiliated Hospital of Zhengzhou University from January 2004 to December 2011. Data, such as the rate of stillbirths, perinatal mortality, gestational age, birth weight, and the rate of congenital malformations of the three groups, were compared. Results PESA and TESA children were not different from ICSI children in the rate of stillbirths, perinatal mortality, infant mortality rate, gestational age, the rate of prematurity, and the rate of malformations （P〉0.05）. A slight increase in birth defects was reported in the TESA group compared with those in the control group, but there was no significant difference between the groups （P〉0.05）. Conclusion ICSI with epididymal or testicutar sperm does not lead to more stillbirths or congenital malformations compared with ICSI using ejaculated sperm.
文摘This experiment was designed to investigate leptin receptors (Ob-R and Ob-Rb) mRNA in ram epididymal spermatozoa by RT-PCR. Ten testes were obtained from abattoir and epididymal spermatozoa recovery was performed. To purify spermatozoa, motile sperm were isolated by the swim-up procedure. Total RNA was isolated from epididymal spermatozoa and placental cotyledon, as a positive control, and then they were purified. Specific bands (98 and 308 bp) for Ob-R and Ob-Rb were detected after RT-PCR in both epididymal spermatozoa and placental cotyledon. We may conclude that Ob-R and Ob-Rb mRNA are present in ram epididymal spermatozoa and leptin perhaps exerts physiological effects, as already demonstrated in human.
