获卵日男方取精失败改行手术取精的结局分析

【目的】分析辅助生殖治疗患者在获卵日由于男方取精失败,改行手术取精联合胞浆内单精子注射治疗后的妊娠结局;探讨获卵日男方取精失败的治疗方案。【方法】回顾性分析了2005年5月1日至2009年5月1日在我中心拟行辅助生殖治疗,在获卵日因男方取精失败而改行手术取精联合胞浆内单精子注射(ICSI)治疗的病例共33例;分成经皮附睾精子抽吸组(5例)和睾丸精子抽提组(28例)。分析ICSI后两组的受精率、卵裂率、优质胚胎率、种植率及妊娠率等结局。【结果】5年来,获卵日取精失败的发生率为0.52%(33/6341)。在33例患者中,经手术取精均成功获得精子,其中从附睾抽吸取精5例(15.2%,5/33),从睾丸抽提取精28例(84.8%,28/33)。ICSI后两组的受精率(69.2%vs78.6%,P=0.118)、妊娠率为(60.0%vs37.0%,P=0.374)和种植率(41.7%vs21.2%,P=0.129)之间差异无统计学意义。但两组的卵裂率(88.9%vs99.7%,P=0.019)与优质胚胎率(52.5%vs75.6%,P=0.004)之间的差异有统计学意义。32个周期行新鲜胚胎移植,有1个周期因为ICSI治疗后未受精没有移植,生化妊娠率为40.6%(13/32),种植率为24.4%(19/78),共获得14个活产儿。【结论】对于获卵日因男方取精失败的患者,改行手术取精联合胞浆内单精子注射是一种有效的办法,能避免因此取消周期。

GnRH激动剂长方案和拮抗剂方案中HCG日孕酮与获卵数比值对后续FET周期妊娠结局的影响

目的探讨促排卵过程中GnRH激动剂(GnRH-a)长方案和拮抗剂方案HCG日孕酮(P)/获卵数(O)比值对后续冻融胚胎移植(FET)周期妊娠结局的影响。方法回顾性分析2017年10月至2019年12月在空军军医大学唐都医院生殖医学中心行FET助孕的2321个周期的临床资料。根据促排卵周期HCG日P/O比值不同,将研究对象分为3组:Ⅰ组(0.02≤P/O≤0.17,764个周期),Ⅱ组(0.17<P/O≤0.34,790个周期)和Ⅲ组(0.34<P/O≤2.67,767个周期)。采用单因素及多元Logistic回归分析GnRH-a长方案和拮抗剂方案HCG日P/O比值对后续FET周期临床妊娠率、流产率、异位妊娠率及持续妊娠率的影响。结果单因素分析结果显示:拮抗剂方案中随着P/O比值升高,后续FET周期的着床率、临床妊娠率及持续妊娠率均显著性下降(P<0.05),而多元Logistic回归模型矫正基线资料后,不论GnRH-a长方案还是拮抗剂方案,P/O比值对后续FET周期妊娠结局的影响均无显著性差异(P>0.05)。进一步分析两种促排卵方案中不同P/O比值亚组对妊娠结局的交互作用影响,结果显示:在拮抗剂方案的Ⅲ组中,随着P/O比值增加,后续FET周期临床妊娠率呈下降趋势[OR=0.61,95%CI(0.01,0.89),交互P=0.026],而对流产率、异位妊娠率及持续妊娠率的影响无显著差别(P>0.05)。结论在P/O比值≤0.34时,不论GnRH-a长方案还是拮抗剂方案,其后续FET周期妊娠结局均不受影响;而当P/O比值>0.34时,随着其比值增加,拮抗剂方案后续FET周期的临床妊娠率可能降低。

Higher Concentrations and Ecological Risks of Selected Persistent Organic Pollutants in Macrobrachium lamarrei from the Streams of Sialkot, Pakistan

Persistent organic pollutants （POPs） persisting in the environment, which accumulate in human and animal tissue and bio-magnify in food-chains, would have significant impacts on human health and the environment. Thus, the present study was designed to investigate the accumulation of organic pollutants in prawn from streams of Sialkot, Pakistan. Fresh water prawn Macrobrachium lamarrei was captured from streams of study area. Samples were prepared for extraction of selected organic pollutants and then analyzed through gas chromatograph-electron capture detector （GC-ECD）. Results of current study showed that five pesticide residues, i.e., B-HCH, Lindane, DDD, 2, 4-DDT and 4, 4-DDT were detected in composite prawn sample. The rest of POPs residues were not found in prawn. The ratio of a-HCH/γ-HCH indicated an input of technical HCH and long range transport, while the ratio of DDT/（DDD ＋ DDE） showed recent use of DDT to the study area. The high values of TEC-HQ and PEC-HQ of POPs in the studied prawn samples depicted risk posed to health.

Fosnetupitant/Palonosetron(Akynzeo)

Akynzeo是瑞士Helsinn Healthcare SA公司研制的复方制剂,用于治疗癌症化疗患者的恶心和呕吐。该药最初于2014年10月10日获美国FDA批准上市,活性成分是奈妥吡坦(netupitant)和盐酸帕洛诺司琼(palonosetron hydrochloride),为口服胶囊制剂。