妊娠的

By inhibiting vasoconstriction, the use of low-dose aspirin in the first trimester could influence placentation and therefore prevent or delay development of hypertensive pregnancy complications, such as pregnancy-induced hypertension and pre-eclampsia.

在妊娠早期的三个月使用低剂量阿司匹林可以作用于胎盘，通过抑制胎盘血管收缩从而防止或推迟妊娠高血压并发症的发展，如妊娠高血压综合征和先兆子痫。

In order to investigate the effect of IFN-γon the expression of TNF-αin the hypothala- mus-pituitary-ovary axisof RU486-induced aborted SD rats, RU486 was used to establish the abortion model, then the aborted rats were administrated with different doses of IFN-γintraperitoneal injection, the method of immunohistochemical ultrasensitive SP was us- ed to study the variation of positive TNF-αcells in hypothalamus, pituitary, ovary and uterus in normal pregnant group A, aborted model group B and three different doses of IFN-γgroup C,D,E. The main goal of this research was to study whether the low dose of IFN-γcould have a protective function to pregnancy and the mechanism of its function so as to provide morph- ologic basis for the scientific using of IFN-γin the process of animal abortion control.

为探讨IFN-γ对流产大鼠下丘脑-垂体-卵巢轴(hypothalamus-pituitary- ovary-axis，HPOA )TNF-α表达的影响，本试验用米非司酮(RU486)建立SD大鼠流产模型，通过腹腔注射不同剂量IFN-γ，采用超敏感免疫组织化学SP法(链霉素抗生物素—过氧化物酶法)，观察了孕13天(d13)SD大鼠正常妊娠A组、流产模型B组、不同剂量IFN-γC、D、E组下丘脑、垂体、卵巢、子宫TNF-α的表达变化，探讨低剂量IFN-γ对妊娠是否有保护作用及其作用机制，期望能为在妊娠过程中如何科学应用IFN-γ防止动物流产提供形态学依据。

Results: The normal epithelial cells were intactly lined with microvilli, and lesions on the surface of Ct infected cells were showed by SEM. The expression of actin was obvious throughout the cytoplasm of uterine epithelial cells but appeared to be most intense along the apical plasma membrane on day 4, 5 and 6 of pregnancy. On the day 7, levels of actin had increased along the apical surface. The expression of actin in the infected group was weaker than that in of the normal group.

结果：SEM示对照组子宫腔可见有微绒毛的分泌细胞；实验组腔上皮细胞表面有的可见破损，微绒毛少见；免疫组化结果显示荧光强度主要定位于腔上皮细胞胞质／胞膜，妊娠第4，5，6天沿胞质顶部分布较密集，而底部较弥散；妊娠第7天顶部强度有所增加；感染组的荧光强度均弱于相应正常组，在妊娠第5天存在显著性差异(p.05)。

The expressions of MHC class Ⅱ molecules in interfamily pregnancy were weaker than in intraspecfic pregnancy in day 8, and expressive modes in day 12 were also different.

妊娠第八天时，MHCⅡ分子在科间妊娠中的表达弱于同种妊娠，其表达模式在第12天时也不相同。

The results suggested for the pig (about 130kg average pregnance weight) in winter supply DE 26.51MJ in prophas (1～84 days) and 32.31MJ in anaphase (85days～parturition) daily,or DE 28.00MJ／day during pregnancy averagely can meet the requirement of the pregnance pi...

结果表明：平均妊娠体重130kg左右的四川白猪Ⅰ系初产母猪冬季怀孕时，妊娠前期（1～84d）日供DE26.51MJ，后期（85d～分娩）日供DE32.31MJ，全期平均日供DE28.00MJ，能够满足妊娠母猪的能量需要。

Total protein content in serum maintained the highest level (P＜0.10) and urea concentration in serum maintained the lowest level (P＜0.10) similar to the condition in primiparous gilts which might mean higher protein efficiency to maternal body and fetus.

2经产妊娠母猪血清雌激素浓度在妊娠期维持相对高水平；孕激素妊娠前期维持相对高水平，后期维持相对低水平，其繁殖性能较好，与初产母猪的情况一致。

From this study, both low hCG and high hCG are adversity to pregnancy, hCG level reflect the growth and function situation of trophocyte which is the main component of placenta, whereas, the level of steroid hormone which close to hCG directly influence whether pregnancy will maintain, but in some cases being short of oxygen in uterine placenta local, usually display hCG level higher than normal pregnancy.

在正常妊娠时hCG过低往往预示着流产的可能，从本研究结果看，可能不仅仅是hCG水平过低对妊娠不利，hCG水平很高对妊娠也不利。hCG水平的高低反映了作为胎盘主要组份的滋养细胞的生长情况与功能，而与hCG水平高低密切相关的类固醇激素的高低直接影响了妊娠能否持续下去。

Ultrasound pulsed doppler studies of the uteroplacental circulation: the influence of sampling site and placental implantation.

尽管均短于以往日本妇女妊娠平均值的报道［1］，但双胎妊娠平均妊娠期限较单胎短3～4周则比较相一致。

Alter being fed 50 days for depleting the VA store in body, the female rats copulated with male rats. All the copulated rats were randomly divided into 4 groups: VA deficient group, VA supplement group, VA marginally deficient group, VA marginally deficient supplement group.

将交配后的雌鼠在各组内随机分为VA缺乏组、VA缺乏妊娠0d补充组、VA边缘缺乏组、VA边缘缺乏妊娠0d补充组。B、D组于妊娠第0d喂饲补充饲料。

Methods To divide randomly 150 women of 14～18 week pregnancy who volunteer to cease conception into three different roups:A,B and C,namely group by rivanol,group by mifepristone combining with misoprostol,and group by mifepristone plus rivanol,and observe the induction effect,time of commencement of uterine contraction,time from uterine contraction to fetal discharge,and quantity of bleeding on induced labor,etc.

目的 探讨对14～18周妊娠几种不同引产方法的效果。方法将150例妊娠14～18周自愿要求终止妊娠者随机分成A、B、C3组，即利凡诺组、米非司酮联合米索前列醇组、米非司酮加用利凡诺组，观察各组的引产效果、宫缩发动时间、宫缩到胎儿排出时间、引产出血量等情况。

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。