妊娠期的

The fore-limb bud is observed to form on 28th day of gestation, and the hind-limb bud on 30th day. The coelom divides into thorax and celiac part on 32th day and the fetal period came on 40th day.

2在妊娠的第28天，前肢芽已经发生，30天时后肢芽发生，32天时开始胸腹分界，40天时进入胎儿期。

ResultsAfter three to six cycles of HT the serum FSH,LH level of 18 patients with recovery of mense dropped significantly,while E2 raised slightly. HMG/HCG and GnRH-a/HMG/HCG for ovulatory induce treatment have suceed in induciug follicular developrnent and mature,and one pregnancies.

结果 18例患者经雌孕激素治疗3～6周期后血清卵泡刺激素、黄体生成素水平明显下降，血清雌二醇(E2)升高不明显，以人绝经期促性腺激素HMG/人绒毛期促性激素的素方案和促性腺激素释放激素激动剂/HMG/HCG方案促排卵治疗有成熟卵泡发育，有1例妊娠。

"In this study, antepartum dental radiography in pregnant women was associated with an increased risk for a LBW infant, especially a TLBW infant," the authors write."Since women may not always be aware of their pregnancy status, it may not be possible to eliminate all dental radiography during pregnancy, but if this goal could be achieved and if the identified association is causal, the prevalence of TLBW infants could be reduced by up to 5%.... The notion that very low-dose radiation exposures to nonreproductive organs in expectant mothers are safe needs to be investigated further."

研究人员表示，在这项研究中，怀孕期妇女分娩前牙科X光摄影与LBW新生儿的风险增加联结在一起，特别是TLBW，由於妇女不能总是注意到她们的妊娠状态，也不可能在怀孕期间取消所有的牙科X光摄影，但如杲这个目标能达成，而且被识别的联想是偶然的，则TWBL新生儿的盛行率能依5%减少；此外，在妊娠妇女中，对非生殖器官极低剂量辐射曝露，是须进一步研究的安全需求概念。

DISCUSSION Using both propofol and fentanyl together for induced abortion opration has kinds of excellencis,such as quick rising effects,clam inducement and convalescence,expeditious vivification,and that is safety and effective measure for anaesthesia.

病例报告］给200例ASA分级Ⅰ级早期妊娠患者在丙泊酚复合小剂量芬太尼麻醉下施行人工流产术，未出现疼痛及人工流产综合征等并发症。［讨论］丙泊酚及芬太尼联合应用于人工流产手术具有起效快，诱导和恢复期平稳，苏醒迅速等特点，是安全且有效的麻醉方法。

The primary outcome was severe pregnancy-associated hypertension alone or severe or mild hypertension with elevated liver-enzyme levels, thrombocytopenia, elevated serum creatinine levels, eclamptic seizure, medically indicated preterm birth, fetal-growth restriction, or perinatal death.

主要转归是单纯的严重妊娠性高血压，或者有严重或轻度高血压伴肝酶水平升高、血小板减少、血清肌酐水平升高、子痫发作、有医学指征的早产、胎儿生长受限或围生期死亡。

To evaluate the effect of oligohydramnios on perinatal outcome.

目的 探讨晚期妊娠羊水过少对围生期结局的影响。

Abstract］ Objective To purpose the late pregnancy oligohydramnios on perinatal outcome.

目的 探讨晚期妊娠羊水过少对围生期结局的影响。

But the transfer of 2—4 cell stage parthenogenetic embryos to the pseudopregnant recipients failed to induce preqnancy in Kunming mouse.

孤雌胚具有发育良好的内细胞团。但将2—4细胞期孤雌胚移植至假孕受体未获得妊娠。

The trophoblast blood flow spectrum could be easily detected with the guide of CDE.The ultrasonic findings were characterized by broad arterial flow spectrum,high diastolic component of the low resistance trophoblastic flow,RI＝0.40～0.51 with single or biphasic spectrum.The salpingian ring with high blood flow indicated early and complete salpingian pregnancy.

结果：①异位妊娠包块血流信号丰富，血管连续性好，能较完整显示血管床、血管网及范围广的低流速血流信号；②脉冲多普勒取样为滋养层周围性血流频谱，其特征为：频谱增宽、单相或双相持续存在、阻力降低(RI＝0.44±0.04)、舒张期血流丰富的动脉频谱；③具有鲜明丰富的滋养层周围性彩色血流频谱特征的&输卵管环&是早期输卵管妊娠的特征性表现，并提示是输卵管完整存在的标志。

It was shown that: 1 MMP2 activity reached the highest level during proestrus, and was lowest during diestrus; 2 MM2 acti vity was increased from the first day of pregnancy, peaked on day 4 of pregnancy; but decreased significantly at day 7 of the pregnancy. 3 MMP2 activity was obviously higher on day 1 of pseudopregnancy than on the other days, and its activity decreased gradually, reached the very low level at day 4 of pseudopregnancy and maintained the low level until day 7; 4 MMP2 activity was decreased significantly 24 hours after injection of 17βestradiol ( 01 mg) at metaestrus, while MMP2 activity had no change after progesterone (04 mg) injection.

明胶酶A活性变化如下：1在大鼠的动情前期明胶酶A的活性最高，间情期最低；2在妊娠早期(1～7天)的卵巢中，明胶酶A的活性在妊娠第4天达到最高，第1～3天及第5、6天其活性也较高，但第7天则明显下降；3在假孕(1～7天)大鼠的卵巢中，明胶酶A的活性在假孕第1天最高，第2、3天略下降，从第4天到第7天，其活性都处于较低水平；4动情后期大鼠皮下注射雌二醇(0.1mg/只)24小时后，明胶酶A活性明显上升。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。