Screening Mouse Genes Related to Blastocyst Implantation by Using PCR Subtraction

Objective To identify genes that may be related to embryo implantation Materials & Methods The PCR subtraction technique was applied at implantation and inter-plantation sites on day 4. 5 of pregnancy in mice. Two novel Expressed Sequence Tags (ESTs ), EST8 and EST81 were identified; their expression in tissues was analyzed by Northern blotting, and their full-length cDNAs were synthesized by PCR.Results We found that these two novel ESTs (EST8and EST81) were noticeably expressed in implantation site in the mouse on day 4. 5 of pregnancy. EST8 was expressed at high level in livers and implantation sites of the mice, while at low level in ovaries and inter-plantation sites. EST81 was predominantly expressed in implantation site and ovary, and at low level in all other tissues. Their complete cDNAs, 1 665bp and 1 264 bp respectively, were synthesized by using PCR.Conclusion The two full-length cDNAs were responsible for embryo implantation,and their functions need to be further studied.     

Facilitation of discrimination transfers under amphetamine: the relative control by S+ and S− and general transfer effects

Rats were trained in a Y-maze on a two-choice simultaneous black-white discrimination with either black or white as S⁺. Animals were then transferred to one of three discrimination tasks. In task 1 (New S^–), a new stimulus, either vertical or horizontal stripes, was substituted for the original S^–. In task 2 (New S⁺), a new stimulus, either vertical or horizontal stripes as in task 1, was substituted for the original S⁺. In task 3 (New S⁺/S^–) animals were trained on horizontal-vertical discrimination. The pre-trial administration of 1 mg/kg d-amphetamine facilitated the acquisition of the original black-white discrimination with both black as S⁺ and white as S⁺. Likewise, the drug improved performance in all three transfer conditions. However, the course of learning in the three transfer tasks was different in the placebo- and amphetamine-treated animals. Amphetamine-treated animals were disrupted more by a change in S⁺ than by a change in S^–, whereas the opposite pattern was evident in the placebo controls. When both discriminative stimuli were changed, placebo animals exhibited pronounced decrement in performance, whereas amphetamine animals exhibited excellent learning. The implications of these findings for the effects of amphetamine on discrimination learning are discussed.     

米非司酮配伍卡前列甲酯89例与米非司酮配伍米索前列醇110例终止早期妊娠的比较

目的：比较米非司酮配伍卡前列甲酯与米非司酮配伍米索前列醇终止早期妊娠的疗效。方法：妊娠≤４９ｄ孕妇１９９例，年龄２６±５ａ，随机分Ａ组８９例，Ｂ组１１０例。２组均用米非司酮２５ｍｇ，ｂｉｄ，３ｄ，于ｄ４，Ａ组阴道后穹窿置卡前列甲酯栓１ｍｇ。Ｂ组米索前列醇ｐｏ，６００μｇ。结果：Ａ和Ｂ组完全流产率各为８３％和９３．６％，经Ｘ２检验，Ｐ＜０．０５；胎囊排出时间，Ａ组４±５ｈ，Ｂ组３±６ｈ，２组无显著差异。结论：米非司酮配伍米索前列醇的抗早孕效果优于配伍卡前列甲酯。     

肺系疾病从脾胃论治的探讨

本文论述与肺与脾胃在生理，病理诸方面的密切关系；提出了肺系疾病从脾胃治疗的必要性和重要性；讨论了肺病从脾胃论治之常用７法：即健脾化痰法，芳香醒脾法，健脾利水法，通腑降气法，健脾补肺法，养胃益肺法，补益脾肾法等，对肺系疾病的临床治疗有一定的启发作用和应用价值。     

Matching blood donations to type-specific product needs: A recruitment technique

The conversion of multiple whole blood donors to apheresis donors is a challenge since a rapidly expanding apheresis donor base could erode homologous collections. We addressed this concern with a plan to enhance apheresis recruitment as well as donations among homologous donors with types O and B blood. Focusing the donor's attention on blood type as it relates to type-specific product needs was the basis of our approach. A matrix was used to recruit the desired types for the desired procedures (whole blood, platelet/plasma apheresis). The matrix instructed donors of blood types O, A-, and B- to primarily give whole blood and to give apheresis as a secondary donation. Donors AB, A+, and B+ were primarily directed to apheresis donations, whole blood donation being secondary. A+ and O- donors only gave their secondary donation if they were at maximum donations with the primary donation. The collections by blood type in percentages for 12 months of 1992/93 for whole blood were O+ 38.9, 0- 7.3, A+ 29.5, A- 5.7, B+ 11.9, B- 2.1, AB+ 3.7, AB+ 0.7. For apheresis it was 0+ 36.2, 0- 6.7, A+ 33.0, A- 6.6, B+ 10.4, B- 1.2, AB+ 4.9, AB+ 1.0. In 1992/93, A+ and B+ apheresis collections as compared to total apheresis collections increased by 4.9% and 13.7%, respectively. For O group apheresis donations, a decrease of 2.5% was shown and A+ whole blood donations decreased by 5.35%. During the same period of time, total apheresis collections increased by 3,058 units. We demonstrated that integration of apheresis recruitment with type-specific whole blood recruitment yielded significant increases of type-specific products.     

激素敏感型肾病单个核细胞培养上清液对大鼠肾小球多阴离子及超微结构的影响

用刀豆蛋白Ａ刺激激素敏感型肾病单个核细胞，并将其培养上清液灌注于大鼠肾内。结合电镜观察，用图像分析仪及体视学方法分别对其肾组织胶体铁染色切片和电镜照片上的足突和滤过裂隙的平均宽度进行测定。结果表明：该病极期上清液灌注的鼠肾小球多阴离子明显减少，足突肿胀、融合，滤过裂隙变窄；而该病缓解组和正常对照组则为阴性。说明该病单个核细胞培养上清液可引起鼠肾小球微小病变型肾病综合征的病变，并揭示该变化可能是由其上清液中一种异常的Ｔ淋巴细胞因子所致。