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61.
Ming-I. Hsu Paul Kolm John Leete Ke Wen Dong Suheil Muasher Sergio Oehninger 《Journal of assisted reproduction and genetics》1998,15(8):496-503
Purpose:
Our purpose was to examine implantation of singleton pregnancies achieved following various assisted reproductive technologies (ARTs) through the appearance and rising titers of serum human chorionic gonadotropin (hCG) levels.
Methods:
A total of 114 singleton pregnancies resulting from in vitro fertilization and intrauterine insemination was analyzed. Patients were divided into five groups according to the type of ovarian stimulation protocol [gonadotropin stimulation with/without the use of gonadotropin-releasing hormone agonist (GnRHa), long protocol, or flare-up technique] and to the day of embryo transfer (day 2 or day 3 after oocyte retrieval). Serial serum hCG levels were measured between 10 and 25 days after fertilization and log-transformed. Linear regression analyses were performed and extrapolated to hCG = 10 mIU/ml (hCG
10
), which was used as an estimate of detectable implantation. The slopes of the regression lines were used to estimate the rising speed of hCG.
Results:
There were no significant differences in the days of hCG in maternal serum to reach 10 mIU/ml (implantation) or in the slopes of the regression lines for all five studied groups.
Conclusions:
The appearance of hCG in maternal serum was used to assess the time of clinically detectable implantation. Furthermore, because hCG production is a marker of trophoblastic activity, its serum doubling time was used as an indicator of embryo quality. Results showed that in various ART protocols with and without GnRHa, there were no significant differences in implantation time or embryo quality. Embryo development in early pregnancy follows a preprogrammed-timing schedule and depends mainly on the embryonic age of the health, successfully implanted conceptus. 相似文献
62.
目的总结近20年来孤立性左肝胆管结石并发左肝胆管狭窄的临床治疗体会.方法原发性肝胆管结石1018例,年龄27~72岁,其中孤立性左肝胆管结石133例,手术治疗112例,对其临床资料进行回顾性分析,包括各肝管狭窄并发率,术前各项检查确诊率,手术治疗方式,再狭窄率.结果左肝管狭窄的发生率为598%,左外肝管和左内肝管分别为840%和848%,均以重度狭窄为主.狭窄切开整形后高位胆肠吻合术是处理左肝管狭窄的常用手术方式(522%),远期再狭窄率为171%;左半肝切除术施实率为194%,再狭窄率为00%;狭窄整形术和狭窄扩张术的施实率分别为90%和194%,再狭窄率分别为500%和923%.左外肝管狭窄通常采用肝段或肝叶切除术(787%),而左内肝管狭窄的处理则通常采用非左半肝切除术(848%).左内肝管狭窄的术前/后影像学确诊率明显低于左肝管和左外肝管,平均确诊率依次259%,933%和879%.结论二级肝管狭窄是孤立性左肝管结石的常见并发症,肝叶或肝段切除术是其首选治疗原则.过多依赖非肝叶/段切除术和不适当的肝段切除术是遗留狭窄和远期疗效差的重要原因 相似文献
63.
Wen Zaigen 《吉林大学学报(医学版)》1994,(6)
本文记述了新种三歧袍甲螨Eremaeozetestrifurcussp.nov,模式标本采自广东省珠海海滨土壤中,保存于白求恩医科大学生物学教研室。 相似文献
64.
65.
Wen Zhao Jian Sun Jia-Wei Zheng Jun Li Yue He Zhi-Yuan Zhang 《Otolaryngology--head and neck surgery》2006,135(5):758-764
OBJECTIVE: To study the effect of the cervical plexus and the accessory nerve to the function of the trapezius muscle. STUDY DESIGN AND SETTING: Eighteen adult male Sprague-Dawley rats were randomly divided into three groups. The neurotomies were performed in the left sides and the right sides served as within-subject controls. In group A, the accessory nerve was transected. The C2-5 were transected in group B, and both of the accessory nerve and C2-5 were cut in group C. The electrophysiologic, myophysiologic, and histologic changes of the muscles were measured. RESULTS: There were significant differences (P < 0.05) between the three groups in the recovery rates of the transverse area of the muscles. The CMAP recorded from the experimental sides in group B were similar to the control sides. The values of the maximum tension of the tetanus contraction between the two sides showed no differences either (P > 0.05). CONCLUSION: The accessory nerve supplies the most important motor input to the trapezius. Motor innervations of the cervical plexus are not very significant. 相似文献
66.
腔内三重双J管引流技术治疗输尿管狭窄 总被引:1,自引:0,他引:1
目的探讨腔内三重双J管引流技术治疗输尿管狭窄的可行性. 方法 2000年3月~2003年6月,对27例输尿管狭窄采用输尿管腔内置入3根相同大小的双J管引流,术后留置10~12周. 结果 27例随访2~24个月,平均18个月.26例拔管后无腰胀、发热等症状.IVP示引流通畅,患肾积水排空好,无输尿管狭窄.1例术后6个月复查IVP,肾积水仍无改善,改开放手术.本组治疗成功率96%(26/27). 结论腔内三重双J管引流技术治疗输尿管狭窄可行. 相似文献
67.
重度抑郁症大学生经短周期有氧运动处方干预后抑郁症状和心肺功能的变化 总被引:1,自引:0,他引:1
文安 《中国组织工程研究与临床康复》2007,11(17):3316-3318
目的:观察短周期有氧运动处方的干预对重庆抑郁症大学生抑郁症状和心肺功能的影响。方法:于2005-09/10选择陕西省西安市8所高校中的11例患抑郁症的大学生,男6例,女5例;年龄18~25岁。均符合美国社会精神疾病的诊断统计手册标准重度抑郁症的诊断标准;均对干预方案知情同意。采用自编运动处方,即修订跑台测试方法进行有氧运动干预,训练在每周一至周六进行,每日进行5组,每组3min,共干预3周;强度以周围毛细血管血乳酸浓度达(3.0±0.5)mmol/L为标准,组间间歇期为其1/2强度至恢复,乳酸浓度监测在每第6个训练计划日进行。心率作为监测指标,由于对于训练计划的适应,心率会逐步降低,所以通过提高跑台的转速增加运动强度。运动强度评价采用Bord自我用力感觉量表,强度保持在13,14级(比较困难)。检测最大摄氧量,以反映心肺功能耐力运动表现。在训练计划开始和结束时用汉密顿抑郁量表(5级评分,0~4分,分数越高表示抑郁症状越严重)评估患者抑郁症严重程度。结果:患抑郁症大学生11名均进入结果分析。训练后患抑郁症大学生汉密顿抑郁量表分为(13.12±5.54)分,较训练前明显下降[(19.55±3.30)分,P<0.01]。训练前后患抑郁症大学生最大摄氧量分别为(35.24±10.10),(33.91±10.23)mL/(kg·min),两者比较,差异不明显(P=1.000)。结论:重度抑郁症大学生经短周期有氧训练后,抑郁症状明显改善,心肺功能未见明显增强。 相似文献
68.
Different characteristic damages of the SGC-7901 gastric adenocarcinoma cells were studied by electron microscopy 1, 36, 72, 96 and 120 hours after heating and radiation in vitro. The visible damages, such as the enlarged mitochondria, increase of lysosomes and perichromatin granules could be shown 1 hour after heating (43 degrees C for 30 min) but no visible damages of the cells were shown until 36 hours following radiation (500 rad). In order to study the ultrastructural changes of the gastric cancer cells in mitosis after heating and radiation, we have used the new method of ultrastructural research in selecting and observing the M cell in vitro and found loosened structure of chromosome and disappearance of microtubules 1 hour following hyperthermia. At the same time, no apparent abnormalities of the mitotic cells were observed after radiation. It is the chief cause of division delay in heat injured cells. However, the chromosomes and microtubules of the new mitotic cells could recover 36 hours after heating (43 degrees C for 30 min). After radiation, the giant cells and abnormal morphologic changes of cells gradually increase and the living cells decrease. Unexpectedly, the division of a few giant cells is observed 72 hours after heating and radiation. 相似文献
69.
法莫替丁冲剂在健康人中的生物利用度及药动学研究 总被引:1,自引:0,他引:1
本实验采用反相高效液相色谱法,比较了10名健康志愿者单剂量口服法莫替丁冲剂及等剂量片剂的生物利用度。结果表明:二种剂型的Tmax,Cmax,AUC均无显著性差异(P〉0.05)。冲剂相对于与片剂的相对生物利用度F=101.90。 相似文献
70.
月骨,三角骨周围性腕骨轴向崩解症 总被引:2,自引:0,他引:2
本文报告3例罕见的新鲜性月骨、三角骨周围性腕骨轴向崩解症。该症是在腕的三个纵向功能解剖的基础上,遭受了以纵向为主兼有侧向偏斜的暴力而发生的。它的基本病变是月骨及三角骨与桡骨关系正常,而其余腕骨皆在其三个纵轴间发生崩解,致使患腕在结构上出现了严重紊乱。在这种复杂的病变中月骨和舟骨起着关键的作用,亦是腕骨轴向崩解的基础。本病在受伤机制、临床诊断以及治疗方法上,均与月骨周围性脱位或创伤性腕骨轴向脱位有着明显的区别,因而本病应视为一种独立的病种。本组病例有桡偏型2例,采用切开复位;另1例为尺偏型,采用闭合手法而顺利复位。本组病例经7~36个月的随访,结果表明患腕功能恢复良好。 相似文献