查询词典 gestational

objective the aim of this study is to investigate the expression and the distribution of the nerve growth factor during the period of neural tube development of human embryo.method early development of neural tube was studied in human embryos about 35 gestational days by using immunocytochemical abc technique.result there were ngf immuno-positive substances in the cytoplasm and nuclei of neuroepithelial cells in the ventricular zones of neural tube.in the intermediate zone of neural tube,ngf immunoreactivity was detected in the nuclei of some neurons,or the processes of other neurons which contained no ngf-immunoreactive substances in their nuclei;the expression pattern of ngf in the marginal zone of neural tube was similar to that of the intermediate zone.the density of ngf-immunorecative particles was higher on the rostrum side of neural tube than on the caudal side.the ngf immuno-positive cells were also observed among the somites of embryo under the neural tube.conclusion these results suggest that ngf was an important signal molecule to induce neural tube differentiation,and that ngf may play a significant role in regulation of the biological function of neurons in developing neural tube.

目的 研究捷安肽素的抗真菌作用机理。方法采用形态学方法和同位素标记法。显微形态观察经捷安肽素处理后的供试真菌的形态学变化。进一步采用14c同位素标记的特异底物&尿苷二磷酸-（14c）-葡萄糖&示踪，研究捷安肽素对真菌(1，3)-β-d-葡聚糖合成酶活性反应的影响。结果研究神经生长因子在早期人胚神经管发育过程中的定位表达。方法采用免疫细胞化学 abc法染色，研究35天人胚的发育情况。结果在人胚神经管的室管带中，神经元的细胞质和细胞核ngf免疫反应阳性；在中间带，一部分神经元的细胞核ngf免疫反应阳性，另外一部分神经元的细胞核ngf免疫反应阴性，而其突起ngf免疫反应阳性；在边缘带ngf的表达与中间带相似。在神经管的头侧ngf阳性反应较强，神经管的尾侧ngf阳性反应较弱。结论 ngf在人胚神经管免疫反应阳性，表明ngf可能是诱导神经管分化发育的重要信号分子，提示ngf可能在人胚神经管的发育中具有十分重要的作用。神经生长因子；人胚；神经管；发育

A new study shows at least five factors affect preemies' chance of survival besides gestational age, according The New England Journal of Medicine as quoted by media Thursday.

根据《新英格兰医学杂志》周四媒体发布，一项新的研究表明：除了孕周以外至少有5种因素影响极早产儿的存活机会。

Traditionally, doctors use gestational age, the number of weeks from fertilization to birth, to determine whether a preemie should receive invasive care.

传统上，医生们用孕龄，受精到出生的周数来决定极早产儿是否接受进一步的关注。

Objective To research platelet parameter in pregnant women with gestational diabetes mellitus complicated pre-eclampsia .

目的 探讨妊娠期糖尿病患者并发子痫前期血小板参数变化的意义。

Methods Fifty-three fetal rats of twenty-day gestational age were randomly divided into five groups: normal control, distressed control and group D1, D2, and D3 of different timings of intravenous bFGF treatment in pregnant SD rats.

将53只胎龄为20天的SD大鼠胎鼠随机分为五组，即正常对照组11只，窘迫对照组10只，bFGF治疗组Ⅰ(D1组)10只，bFGF治疗Ⅱ组(D2组)10只，bFGF治疗Ⅲ组(D3组)12只。

Methods Fifty-three fetal rats of twenty-day gestational age were randomly divided into five groups: normal control, distressed control and group D1, D2, and D3 of different timings of intravenous bFGF treatment in pregnant SD rats. Fetal rats in the latter four groups suffered from distress in uteri in an animal model of perinatal asphyxia.

将53只胎龄为20天的SD大鼠胎鼠随机分为五组，即正常对照组11只，窘迫对照组10只，bFGF治疗组Ⅰ(D1组)10只，bFGF治疗Ⅱ组(D2组)10只，bFGF治疗Ⅲ组(D3组)12只。

Objective To investigate the intervening effects of Ganoderma spore on the decrease of cell proliferation and neuronal survival in the hippocampus of fetal and postnatal rats induced with gestational hypertension.

目的探讨灵芝孢子对妊娠高血压大鼠的胎鼠及幼鼠海马细胞增殖下降和神经元存活减少的干预作用。

Conclution The content of BMP in fetal parietal bone reduced with the advance of gestational age which indicates that BMP is a initiator of the genesis of human fetal cranial bone.

胎儿顶骨中BMP的含量随胎龄增加而下降，对顶骨的发生可能有启动作用。

The mean gestational age at labor was 235 days in triplet pregnancies, 241 for quadruplets and 220 days for quintuplets.

分娩时平均孕周，三胎儿235天，四胎儿241天，五胎儿220天，54%采用剖宫产分娩。

To examine rates of spontaneous and therapeutic abortions, rates of stillbirths, birth weight, and gestational age at birth.

审查和治疗自发性流产率，死胎率，出生体重，胎龄和出生。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。