Patient and clinician experiences with cross-border reproductive care: A systematic review

ObjectivesThis review analyzes the experiences of patients and clinicians with regards to international cross-border reproductive care (CBRC) for the purpose of conception.MethodsElectronic databases PubMed, Embase, Web of Science, and Scopus were searched using ‘medical tourism’ AND ‘assisted reproductive technology’ from 1978 to 2020.ResultsPredominant patient motivators for CBRC were cost and legality of assisted reproduction technology (ART) in one's home country, followed by cultural factors like shared language, religion, and cultural familiarity. Clinicians suggested global laws for CBRC would reduce the potential for exploitation of vulnerable populations but believed the enactment of international regulations unlikely and, even if enacted, difficult to enforce.ConclusionsWhile patient and clinician experiences with CBRC varied, patients frequently cited financial and legal reasons for pursuing CBRC, while many providers had concern for the patient’s safety.Clinical practice implicationsThis review recommends clinicians involved in family planning counsel patients seeking treatment abroad by: (i) informing patients of the risks and benefits of treatment abroad, (ii) establishing guidelines and standards for clinicians on resuming patient care post-CBRC, and (iii) creating a directory of reputable CBRC clinicians and experts.     

淫羊藿（苷）对男性生殖系统的作用和机制

淫羊藿是一种常用的中药材,淫羊藿苷是从淫羊藿中提取的一种黄酮类化合物,也是淫羊藿中最主要的活性物质。研究发现,淫羊藿苷具有促进成骨细胞的生成和活化、调节免疫、抗衰老和抗炎等多种功能。临床上淫羊藿（苷）用于治疗生殖系统、骨关节系统、呼吸系统、神经系统、心血管系统和免疫系统等多种疾病。淫羊藿（苷）对男性生殖系统的作用及机制主要包括具有雄性激素样作用,促进睾内睾酮的合成和分泌。淫羊藿（苷）通过改善精子发生的微环境、增强睾丸抗氧化作用促进精子生成,增加精子密度,改善精子活力,减缓生殖衰退。此外,淫羊藿（苷）可促进阴茎勃起,治疗勃起功能障碍及早泄。     

近端胃切除人工三角瓣成形抗反流术的力学机理仿真分析

目的:对食管胃结合部腺癌近端胃切除术（PG）人工三角瓣成形后残胃食糜进行流体动力学数值模拟，并计算不同性质胃内食糜的流动特征。方法:构建常规PG和人工三角瓣成形术术后胃仿真模型，运用Fluent软件对不同粘度胃内食糜反流问题进行数值模拟。结果:站立位姿态时，相对常规PG方案，人工三角瓣成形手术方案表现出较好的抗反流作用；卧位姿态时，当胃内食糜粘度大于0.145 2 Pa[?s，且胃内食糜不超过人工三角瓣情况下，人工三角瓣成形抗反流手术表现出较好的抗反流效果；人工三角瓣抗反流成形手术方案数值模拟结果与临床上患者表现一致。结论:本研究仿真分析为人工三角瓣成形抗反流手术方案的有效性机理分析、临床患者术后饮食及手术方案的进一步改进提供理论及数值依据。 【关键词】食管胃结合部腺癌；抗反流；人工三角瓣；计算流体力学     

主动脉出口血压对左心室血流特性的影响

采用Mimics对心脏进行三维重构，用3-matic进行模型优化以及模型误差分析，对左心室室壁运动做速度分布假设，基于UDF宏文件对左心室室壁运动编写程序，将血液视为非牛顿流体，采用动网格技术研究不同血压对左心室血液流动的影响。模拟发现当左心室收缩时，压力梯度明显，内部压力减小。当左心室舒张时，内部压力逐渐增高。二尖瓣口处的速率先增大后减小。血压升高，左心室内剪切应力持续增大，极易破坏红细胞结构，产生溶血现象，导致心脏功能紊乱。     

国内外不孕不育患者健康相关生命质量量表的系统综述与评价研究

背景 健康相关生命质量（HRQoL）是用于评价临床疗效的重要指标。目前，不孕不育患者HRQoL量表得到了广泛应用，但尚不确定这些量表应用于临床时是否具有良好的测量性能，缺乏对量表的质量评价。 目的 系统综述与评价不孕不育患者HRQoL量表，为合理选择健康结果测量工具提供参考。 方法 于2020年10月，计算机检索PubMed、Web of Science、the Cochrane Library、EmBase、中国知网、万方数据知识服务平台、维普中文科技期刊全文数据库和中国生物医学文献数据库，获取国内外公开发表的有关不孕不育患者HRQoL的研究，检索时限均为建库至2020-10-05。由两名研究者独立筛选文献和提取资料后，采用健康测量工具遴选标准（COSMIN）对不孕不育患者HRQoL特异性量表开发研究的方法学质量，以及量表的测量性能进行评价，采用描述分析法对评价结果进行汇总、分析。 结果 共纳入229篇文献，涉及19个不孕不育患者HRQoL量表，其中4个为不孕不育患者HRQoL特异性量表〔TLMK、生育生活质量量表（FertiQoL）、QOLICQ及中医肝郁型不孕症生命质量量表〕，4个为用于测评癌症及其他疾病患者HRQoL的特异性量表，11个为普适性HRQoL量表，FertiQoL量表在现有不孕不育患者HRQoL相关研究中被使用的频次最高〔39.1%（91/233）〕。PROMs开发方面，除FertiQoL量表开发的总体质量为"有问题的"外，其余3个量表开发的总体质量均为"不合格"。内容效度方面，FertiQoL、QOLICQ量表开发研究的方法学质量分别为"非常好""有问题的"，TLMK、中医肝郁型不孕症生命质量量表开发研究的方法学质量均为"合格"。结构效度方面，除QOLICQ量表开发研究方法学质量为"有问题的"外，其余3个量表开发研究的方法学质量为"合格"；4个量表的结构效度均为"不确定"。内部一致性方面，4个量表开发研究的方法学质量均为"非常好"，4个量表的内部一致性均为"足够"。重测信度方面，QOLICQ量表开发研究的方法学质量为"有问题的"，量表的重测信度为"不确定"。效标效度方面，中医肝郁型不孕症生命质量量表开发研究的方法学质量为"非常好"，量表的效标效度为"足够"。建构效度方面，TLMK量表开发研究的方法学质量为"非常好"，量表的建构效度为"足够"。反应度/灵敏度方面，FertiQoL量表开发研究的方法学质量为"非常好"，量表的反应度/灵敏度为"足够"。 结论 现存的不孕不育患者HRQoL特异性量表中，FertiQoL量表开发研究的方法学质量及量表的测量性能相对较高。中国不孕不育患者HRQoL特异性量表研究数量相对不足，未来应开展更多的研究。     

Turner Syndrome and Fertility

Turner syndrome (TS) is tightly associated with hypergonadotropic hypogonadism and ovarian dysgenesis, typically resulting in infertility in the great majority of patients. Therefore females with TS are usually treated with female sex steroids from 11–12 years of age until the normal age of natural menopause of around 53–54 years of age. Infertility is rated among females with TS as a distressing concern and a detractor from a good quality of life. Options for motherhood for females with TS has expanded during recent years. Originally, only adoption was an option, unless of course for the small minority of TS females that still has ovarian function and are capable of achieving pregnancy through normal means. Oocyte donation has become the mainstream option in many countries and seems to work well, especially if patients have been treated with optimal estrogen and gestagen for a prolonged time before the intervention. It comes with an increased risk of cardiovascular complications and TS oocyte donation pregnancies are viewed as high risk pregnancies necessitating increased vigilance. Oocyte cryopreservation of own oocytes is also becoming an option in a select group of TS and has special challenges. Ovarian tissue cryopreservation is a promising new techniques that has been applied successfully in children with cancer. Currently, several trials are running around the world evaluating this techniques in TS. The genetics and genomics behind the ovarian dysgenesis seen in TS is not understood, but new studies have elucidated global changes in DNA methylation and RNA expression in blood from persons with TS and it is likely that similar changes are present in the ovaries. We still, however, need more thorough research to fully uncover the genetic background of ovarian failure in TS. Gene expression studies and methylation analysis from ovarian TS tissues still needs to be performed.     

Anti-Oxidant,Anti-Hemolytic Effects of Crataegus aronia Leaves and Its Anti- Proliferative Effect Enhance Cisplatin Cytotoxicity in A549 Human Lung Cancer Cell Line

Objective: For Arabian traditional medicine, Crataegus aronia syn. Azarolus (L) Bosc. ex DC (Rosaceae) is widely used to treat diabetes, sexual weakness, cardiovascular diseases and cancer. The anti-cancerous and anti-hemolysis effects of the hydroalcoholic extract of this plant have never been investigated before. The present study aims to evaluate the biological activities of the hydroalcoholic extract of Crataegus aronia leaves in combination with cisplatin, one of the most widely employed chemotherapeutics, on A549 human lung cancer cell line. Methods: The anti-oxidant and anti-proliferative activities of leaves, fruits, seeds of C. aronia were investigated by DPPH method and MTT assay; respectively. Cell migration activity was investigated by wound healing and by cell aggregation assays. The effect of C. aronia in inducing cell cycle arrest along with activating cell apoptosis was evaluated by flow cytometry and Western blot assays, respectively. Results: Our results showed that C. aronia leaves (C. aronia L.) had the highest anti-oxidant and anti-proliferative activities. The leaves extract was potent against hemolysis of the human erythrocytes and showed elevated decrease in migration by reducing wound healing migration and by increasing cell aggregation. Finally, C. aronia L. treatment exhibited apoptotic activity on A549 cells by the down-regulation of PARP-1, caspase-3 and Bcl-2 proteins and by increasing the percentage of A549 cells in sub G0 cell cycle. Moreover, the co-treatment of C. aronia L. and cisplatin remarkably sensitised A549 cells to cisplatin. Conclusion: The results suggested that C. aronia L. could be used as a potential treatment against human lung cancer exhibiting minimal side effects on human health.     

染色体多态性在生殖异常方面的临床效应

染色体多态性是染色体异染色质区域一种微小而恒定的变异,包括结构、带纹宽窄、着色强度等方面的变异,常发生于1、9、16号染色体,D、G组染色体,以及Y染色体。近年来,染色体多态性与生殖方面的关系日益受到人们的关注,本文将近期国内外相关研究综述如下。     

保乳术后放疗中钛夹动度与乳腺大小及钛夹位置的相关性

【摘要】目的:分析保乳术后放疗患者钛夹动度，并探讨其与乳腺大小、钛夹位置的相关性。方法:随机选取保乳术后放疗患者15例，每周两次锥形束CT。测量乳腺基底面直径（D）和乳高轴（H），以瘤床质心为原点将临床靶区分4个象限。记录各象限内钛夹在左右、腹背、头脚方向动度（MLR、MAP、MSI）以及其与临床靶区最内、最前、最上的距离（DSLR、DSAP、DSSI）。结果:MLR、MAP、MSI分别为（2.2±3.0）、（-1.1±3.6）、（0.8±4.7） mm；系统误差Σ在左、右、腹、背、头、脚分别为1.7、2.2、2.0、2.4、2.9、3.0 mm，随机误差σ分别为2.4、4.0、3.2、4.0、4.7、4.7 mm；靶区对应外放5.9、8.3、7.2、8.8、10.5、10.9 mm。一象限内，当D×H<99.89 cm2，MAP和D×H强相关（r=0.805），MLR、MAP均和DSLR、DSAP、DSSI强正相关（r=0.94, 0.94, 0.91；0.87, 0.91, 0.92），MSI和DSLR、DSAP强正相关（r=0.91, 0.94）；四象限内，当D×H<90.71 cm2，MAP和DSLR，MSI和DSAP均强负相关（r=-0.96；-0.95），MLR和DSLR强正相关（r=0.91）。结论:钛夹动度有各向异性，以SI方向外扩最大，并易受乳腺大小、钛夹位置影响。     

针药结合疗法对多囊卵巢综合征不孕症患者子宫内膜容受性的影响＊

目的 观察针药结合联合二甲双胍治疗多囊卵巢综合征不孕患者的临床疗效，并探讨其对子宫内膜容受性的影响。方法 将多囊卵巢综合征不孕患者90例随机分为对照组及观察组，对照组采用二甲双胍治疗，观察组在采用二甲双胍治疗的基础上，加用自拟补肾化痰活血方和针刺治疗，两组均治疗6个月，治疗结束后观察两组临床疗效，观察妊娠率及流产率，比较子宫内膜厚度及子宫动脉RI情况，比较治疗前后两组中医证候积分变化。结果 两组临床疗效的分布比较，差异具有统计学意义（P<0.05），观察组疗效优于对照组。①妊娠率：治疗后观察组的妊娠率高于对照组（P<0.05）。②流产率：治疗后观察组的流产率较对照组下降，但差异无统计学意义（P>0.05）。③子宫内膜厚度与子宫动脉RI：治疗后两组方案均能增加患者子宫内膜厚度、降低子宫动脉RI，且观察组较对照组子宫内膜增厚，子宫动脉RI降低（P<0.05）。④中医证候评分：治疗后观察组中医证候积分较对照组明显降低（P<0.01）。结论 针药结合联合二甲双胍能提高PCOS不孕患者妊娠率，降低流产率，其机制可能与改善子宫内膜容受性有关。