精子染色质结构异常对体外受精-胚胎移植结局的影响

Objective To explore the effects of sperm chromatin structure abnormalities on the outcome of in vitro fertilization and embryo transfer (IVF-ET). Methods Sperm DNA fragmentation and chromatin packaging defects were assessed in 136 couples undergoing IVF-ET because of infertility. The relationship between sperm DNA fragmentation, chromatin packaging defects and fertilization rate and clinical pregnancy was evaluated. Results Both sperm DNA fragmentation and chromatin packaging defect had a negative correlation with fertilization rate (r= -0. 198, P＜0. 05, and r= -0. 389, P＜0. 01,respectively). Both parameters were higher in couples who failed to achieve pregnancy than those who achieved clinical pregnancy (10. 74% vs. 5. 40%, P＜0. 01 and 23. 58% vs. 11. 83%, P＜0. 01,respectively). Conclusion Abnormality of sperm chromatin structure is one of the reasons for IVF-ET failure. Examination of sperm chromatin structure is helpful in predicting he risk of IVF-ET failure and optimizing treatment of infertility.     

精子染色质结构异常对体外受精-胚胎移植结局的影响

Objective To explore the effects of sperm chromatin structure abnormalities on the outcome of in vitro fertilization and embryo transfer (IVF-ET). Methods Sperm DNA fragmentation and chromatin packaging defects were assessed in 136 couples undergoing IVF-ET because of infertility. The relationship between sperm DNA fragmentation, chromatin packaging defects and fertilization rate and clinical pregnancy was evaluated. Results Both sperm DNA fragmentation and chromatin packaging defect had a negative correlation with fertilization rate (r= -0. 198, P＜0. 05, and r= -0. 389, P＜0. 01,respectively). Both parameters were higher in couples who failed to achieve pregnancy than those who achieved clinical pregnancy (10. 74% vs. 5. 40%, P＜0. 01 and 23. 58% vs. 11. 83%, P＜0. 01,respectively). Conclusion Abnormality of sperm chromatin structure is one of the reasons for IVF-ET failure. Examination of sperm chromatin structure is helpful in predicting he risk of IVF-ET failure and optimizing treatment of infertility.     

精子DNA损伤对体外受精-胚胎移植后受精及妊娠的影响

目的探讨精子DNA;;损伤水平对体外受精-胚胎移植治疗的受精与妊娠的影响。方法检测67例接受体外受精治疗的不育症男性的精子DNA;;损伤水平,分析DNA;;损伤水平与体外受精的受精率、优质胚胎率及妊娠之间的关系。结果精子DNA;;损伤水平与受精率呈负相关（r=-0.34,P〈0.05）,与优质胚胎率无显著相关性（r=-0.16,P〉0.05）;治疗后获得妊娠的夫妇的精子SCD阳性率显著低于未获得妊娠的夫妇（7.7%vs 14.3%,P〈0.05）。结论精子DNA;;损伤可能与IVF-ET之后受精率、妊娠率的减低相关。     

1021例体外受精-胚胎移植妊娠结局

目的探讨辅助生殖技术（assisted reproductive technology，ART）后的妊娠结局。方法对1021例通过ART获得的临床妊娠者，通过直接询问或电话随访对其妊娠结局进行回顾性分析。结果1021例妊娠者中，分娩838例（82．08％），单胎642例（76．61％），多胎196例（23．39％），流产132例（12．93％），异位妊娠41例（4．02％），分娩情况失随访10例（0．98％），畸形儿10例（1．19％），分娩男婴540个、女婴495个，新鲜胚胎移植后早期流产率为10．76％，明显高于冻融胚胎移植（FET）后的5．08％（P〈0．01），多胎的早产率、剖宫产率、低体重儿发生率均明显高于单胎（P〈0．01）。结论重视ART技术带来的多胎、早产、流产及异位妊娠等并发症．密切关注ART后代的出生缺陷。     

血清和卵泡液中抗精子抗体对体外受精——胚胎移植的影响

目的 评价女性抗精子抗体对体外受精－－胚胎移植（ＩＶＦ－ＥＴ）的影响。方法 采用ＥＬＩＳＡ法测定施行ＩＶＦ－ＥＴ的妇女的血清和卵泡液中抗精子抗体（ＡｓＡｂ）。Ａ组：血清ＡｓＡｂ阳性１３例;Ｂ组：血清及卵泡液ＡｓＡｂ均阳性２９例;Ｃ组：ＡｓＡｂ阴性１５８例。分析３组受精率、卵裂率、胚胎发育情况及临床妊娠率和流产率的关系。结果：Ａ、Ｂ组受精率、卵裂率明显低于Ｃ组（Ｐ〈０．０１）。移植日,Ａ、Ｂ组Ⅰ－Ⅱ级胚胎率较Ｃ组低,Ⅳ级胚胎及２原核受精细胞增加（Ｐ〈０．０５）。各组妊娠率及流产率无显著差异（Ｐ〉０．０５）。结论 ＡｓＡｂ对ＩＶＦ和早期胚胎发育有损害,体外培养不能完全清除ＡｓＡｂ对ＩＶＦ－ＥＴ的影响。     

血清抗体对体外受精--胚胎移植治疗结局的影响

目的探讨血清抗体抗精子抗体（ASAb）、抗内膜抗体（EmAb）、抗心磷脂抗体（AcA）对体外受精-胚胎移植（IVF-ET）中胚胎着床的影响。方法患者为2001年1月至2002年10月所有行IVF—ET治疗的患者，采用酶联免疫吸附法（EHSA）法检测静脉血ASAb、EmAb、AcA水平，同时观察IVF-ET周期的妊娠结局。筛选出AsAb阳性30周期（30例），EmAb阳性30周期（30例），AcA阳性30周期（30例），做为观察组。抗体阴性30周期（30例）做为对照组，观察120个IVF-ET周期受精率、卵裂率、妊娠率及流产率等。结果30个As址阳性周期受精率64．21％，卵裂率73．64％都低于对照组。30个EmAb阳性周期的妊娠率16．67％，明显低于对照组的11例36．33％。30个AcA阳性周期流产率25％，明显高于对照组1例10％。生化妊娠30个AcA阳性周期37．53％明显高于对照组25％。未妊娠30个EmAb阳性周期最高为31．27％，高于对照组22．07％。生化妊娠与未妊娠者两组比较无显著差异（P〉0．05）。结论妇女体内AsAb、EmAb、AcA可能干扰受精卵的早期发育和早期着床．干扰胚胎发育、胎盘的形成，引起流产等。女性体内的自身抗体也是IVF—ET治疗失败的重要原因之一。     

精子运动对体外受精率、妊娠率的影响

在体外受精-胚胎移植技术(In Vitro Fertilization-Embryo Transfer简称IVF-ET)中,过去单纯考虑或更多的考虑卵子质量,是因为得到卵子比较困难,超排卵花费较高;胚胎学方面也较多地强调卵子在胚胎发育中占有的作用,所以人们常常忽视精子质量特别是其运动能力对发育的影响,越来越多的事实说明,精子对IVF-ET的成功率同样起到至关重要的作用.而在20世纪90年代产生的计算机辅助分析精子(Computer Assisted Sperm Analysis CASA)技术则能比较准确地反映精子的运动特性.     

男性抗精子抗体对体外受精一胚胎移植的影响

目的;评价男性抗精子抗体对体外受精-胚胎移植(IVF-ET)的影响。方法:以ELISA方法测定施行IVF-ET的150对不育夫妇中男方精浆抗精子抗体(AsAb)并分组:AsAb阳性组22例,AsAb阴性组128例。对比分析抗精子抗体及抗体类型对体外受精、卵裂和早期胚胎发育的影响,同时对移植后的妊娠率和流产率进行分析。结果:AsAb阳性组体外受精数明显低于AsAb阴性组(P<0.01),两组的卵裂数则无明显差异(P>0.05),而在阳性组中,不同抗体类型间体外受精、卵裂及胚胎质量无明显差异(P>0.05)。在移植日,AsAb阳性组的I级胚胎较阴性组低,而ⅢⅣ级胚胎和2原核受精细胞(2PN)明显增加(P<0.01)。两组移植后临床妊娠流产率无显著差异(P>0.05)。结论:AsAb能明显降低精子体外受精能力,对早期胚胎发育有损害。精子体处理不能完全清除AsAb对IVF影响。     

多精受精对体外受精-胚胎移植临床结局的影响

目的探讨多精受精对体外受精-胚胎移植（IVF-ET）临床结局的影响。方法回顾性分析在我院行IVF-ET治疗的资料,根据多精受精率分为四组：0组;〉0,≤10%组;〉10%,≤20%组;〉20%组,比较各组的受精率、第三天的可用胚胎率、种植率以及妊娠率。结果四组的胚胎种植率及临床妊娠率均无显著性差异（29.91%vs35.85%,29.91%vs33.83%,29.91%vs32.43%,P〉0.05;47.50%vs48.71%,47.50%vs53.13%,47.50%vs45.40%P〉0.05）.。但当多精受精率〉10%,正常受精率显著下降（72.37%vs68.49%,72.37%vs55.42%;P〈0.001）;多精受精率〉20%,可用胚胎率显著低于≤10%组（52.25%v48.63%,P=0.0472）。结论多精受精对胚胎移植率和临床妊娠率没有显著影响,但过高的多精受精率会降低可用胚胎率。     

抗核抗体对体外受精-胚胎移植结局的影响研究

目的 探讨血清中抗核抗体对体外受精-胚胎移植结局的影响及抗核抗体的表达与体外受精-胚胎移植的结局的关系,为体外受精-胚胎移植结局的分析提供科学依据.方法 采用多重微球流式免疫荧光技术对200例反复种植失败的患者,检测其血清中总抗核抗体及抗核抗体中抗SSA、抗SSB、抗Sm、抗RNP、抗Scl-70、抗Jo-1、抗Cen...     

Influence of antiphospholipid antibodies on pregnancy outcome in women undergoing in vitro fertilization and embryo transfer

PROBLEM: Antiphospholipid antibodies (APA) are thought to be involved in recurrent pregnancy loss. Therefore, we investigated the impact of APA on pregnancy outcome in women undergoing in vitro fertilization and embryo transfer (IVF-ET). METHOD OF STUDY: Blood samples taken from 54 Korean women referred for IVF were tested for the presence of APA, anticardiolipin antibody IgG and IgM and lupus anticoagulant. The standard gonadotropin-releasing hormone agonist long protocol was used for ovarian stimulation. RESULTS: Nine patients (16.7%) were positive and 45 (83.3%) were negative for APA. There were no significant differences between the two groups in clinical characteristics such as age, infertility duration, and response to controlled ovarian hyperstimulation. However, pregnancy outcome significantly differed between the two groups (p < 0.05). The APA positive group and APA negative group had abortion rates of 62.5% and 20.0%, respectively and delivery rates of 37.5% and 80.0%, respectively. CONCLUSION: The presence of APA in women undergoing IVF-ET was associated with a poor pregnancy outcome.     

Relationship between antithyroid antibody and pregnancy outcome following in vitro fertilization and embryo transfer

Objective: To investigate the impact of antithyroid antibody on pregnancy outcome following the in vitro fertilization and embryo transfer (IVF-ET).Methods: A total of 90 patients (156 cycles) positive for antithyroid antibody (ATA+ group) and 676 infertile women (1062 cycles) negative for antithyroid antibody (ATA- group) undergoing IVF/ICSI from August 2009 to August 2010 were retrospectively analyzed.Results: There was no significant difference in the days of ovarian stimulation, total gonadotropin dose, serum E2 level of HCG day and number of oocytes retrieved between the two groups. The fertilization rate, implantation rate and pregnancy rate following IVF-ET were significantly lower in women with antithyroid antibody than in control group (64.3% vs 74.6%, 17.8% vs 27.1% and 33.3% vs 46.7%, respectively), but the abortion rate was significantly higher in patients with antithyroid antibody (26.9% vs 11.8%).Conclusion: Patients with antithyroid antibody showed significantly lower fertilization rate, implantation rate and pregnancy rate and higher risk for abortion following IVF-ET when compared with those without antithyroid antibody. Thus, the presence of antithyroid antibody is detrimental for the pregnancy outcome following IVF-ET.     

Sperm immobilizing antibodies in the sera of infertile women cause low fertilization rates and poor embryo quality in vitro

PROBLEM: The effects of sperm immobilizing antibodies in the sera of infertile women on fertilization and embryo quality in vitro were investigated. METHOD OF STUDY: Before the introduction of sperm immobilization test (SIT) as a routine test for female infertility, 85 oocytes were collected in nine in vitro fertilization (IVF) cycles from four infertile women who were afterward found having had sperm immobilizing antibodies in their sera and the oocytes were inseminated with swim-up sperm in a medium containing the patient's serum. Fifty oocytes were collected in five IVF cycles from five infertile women possessing the antibodies in their sera and the oocytes were inseminated with swim-up sperm in a medium supplemented with human serum albumin (HSA). RESULTS: In the former group, 41 of 85 oocytes were fertilized, giving a fertilization rate of 48.2%. In the latter group, 43 of 50 oocytes were fertilized, giving a fertilization rate of 86.0%. There was a significant difference of the fertilization rate between the groups (P < 0.0001). Embryo quality was assessed by the Veeck's classification. The grade 1 and grade 2 embryos were considered good quality. Using this classification, 16 (39.0%) of 41 embryos incubated in the medium containing the patient's serum were good quality, while 34 (79.1%) of 43 embryos incubated in the medium supplemented with HSA were good quality. There was also a significant difference between the groups (P = 0.0003). CONCLUSIONS: These findings might indicate that sperm immobilizing antibodies in the sera of infertile women cause low fertilization rates and poor embryo quality in vitro. It is suggested that SIT in the sera of infertile women should be performed at least before proceeding IVF. The manipulation of gametes and embryos from patients having sperm immobilizing antibodies should be carefully carried out especially to avoid contaminating patient's serum and follicular fluid in the culture medium in order to have a better IVF result.     

Effects of sera from infertile women with sperm immobilizing antibodies on fertilization and embryo development in vitro in mice

PROBLEM: This study was performed to investigate if patients' sera with anti-human sperm antibodies show inhibitory effects on in vitro fertilization (IVF) and embryo development in mice. METHOD OF STUDY: Patients' sera were collected from eight infertile women having sperm immobilizing antibodies and 17 infertile women without the antibodies. Male ICR mice and female F1 mice (BALB/c X C57BL/6J) were used. In mouse IVF, pre-incubated sperm were cultured in the medium containing patient's serum with or without sperm immobilizing antibodies, or bovine serum albumin (BSA) as a control. The fertilization rates and the incidences of blastocyst formation were compared. RESULTS: A mouse sperm immobilization test was established. Five (62.5%) of eight serum samples with sperm immobilizing antibodies and nine (52.9%) of 17 serum samples without the antibodies showed sperm immobilizing activities in mice. There was no significant difference between the two groups. Five sera with sperm immobilizing activities in human and mice, and five sera without sperm immobilizing activities in human or mice were used for the further experiments. The fertilization rates in BSA, patient's serum with sperm immobilizing antibodies, and that without the antibodies were 82.5% (746/904), 43.6% (508/1165), and 64.5% (669/1037), respectively. There were significant differences between the groups. The incidences of blastocyst formation were 59.9% (447/746), 31.7% (161/508), and 47.7% (319/669), respectively. There were also significant differences between the groups. CONCLUSIONS: Some of the patient's serum with and without sperm immobilizing antibodies could immobilize sperm with complement. However, as compared with control, sera with sperm immobilizing activities against human and mouse sperm significantly blocked IVF and inhibited embryo development in mice. Further studies are required to investigate the mechanisms of the blocking effects of antisperm antibodies on fertilization and embryo development using the mouse model.     

低氧环境对人类胚胎体外受精发育潜能和临床结局的影响

目的探讨不同氧分压环境下（20％02＆5％O2）体外受精一胚胎移植中胚胎发育潜能与临床结局关系。方法选择2012年9月至2012年11月年在郑大三附院生殖医学中心行助孕治疗的280个周期,分别为IVF（n=200）,ICSI（n=80）。随机分组：研究组（5％氧分压）和对照组（20％氧分压）,对比两组间正常受精率、卵裂率、优质胚胎率、生化妊娠率、临床妊娠率和着床率。结果实验组与对照组正常受精率、卵裂率、优质胚胎率、生化妊娠率、临床妊娠率和着床率无统计学差异。结论人类早期胚胎在低氧环境下进行体外培养是有利的,可以获得更好结局。     

基础卵泡刺激素与年龄预测卵巢储备及IVF-ET结局的价值

目的探讨体外受精-胚胎移植（IVF-ET）过程中基础卵泡刺激素（FSH）水平及年龄预测卵巢储备及IVF-ET结局的价值。方法对1999年5月至2006年3月在郑州大学第二附属医院生殖中心行IVF-ET助孕术的376个新鲜周期结局进行回顾性分析,比较不同FSH水平和不同年龄患者卵巢反应性和IVF-ET结局的差异。结果FSH〈10 IU/L患者Gn用量明显低于10 IU/L≤FSH≤15 IU/L和FSH〉15 IU/L组患者,而取卵数明显高于其他两组（P〈0.05=。年龄〉35岁患者的基础FSH值、Gn用量显著高于其他两组（P〈0.05=,而取卵数、卵裂率、胚胎植入率、临床妊娠率和继续妊娠率均明显低于其他两组（P〈0.05=。低龄高基础FSH（年龄〈38岁且FSH≥10 IU/L=患者的胚胎植入率、临床妊娠率和继续妊娠率均显著高于高龄低基础FSH（年龄≥38岁且FSH〈10 IU/L=患者（P〈0.05=。不同FSH水平患者受精率、卵裂率、移植胚胎数（ET数）、胚胎植入率、临床妊娠率、流产率差异均无统计学意义（P〉0.05）。结论基础FSH水平可以预测卵巢的储备功能和取卵数目,但不能预测IVF-ET的临床结局,而年龄对IVF-ET的临床结局有一定的预测价值。