查询词典 diethylstilbestrol

To investigate the pollution levels, occurrence and distribution of estrogens, six estrogens in the surface sediments of Wenyuhe River were analyzed quantitatively by GC/MS following ultrasonicated extraction including diethylstilbestrol, estrone(E1),β-estradiol(E2), 17α-ethynylestradiol(EE2), estriol(E3), and β-estradiol 17-valerate. Six estrogen concentrations ranged from 0.39-36.6ng/g and the mean concentration was 10.2ng/g.

为了调查温榆河沉积物中雌激素物质的污染状况，采用超声萃取、GC/MS法研究了6种常用雌激素（包括己烯雌酚DES、雌酮E1、雌二醇E2、乙炔基雌二醇EE2、雌三醇E3和戊酸雌二醇EV）在北京温榆河上游及干流表层沉积物中的含量水平，并对其分布及来源情况进行了分析。

They have close relationship as the former may provide new ideas and approaches for the later, while the later may be the simulation for the former and gives it helps in degradation products identification and mechanism explanation. It is necessary to choose a suitable system, which has high potential of treating EDs and close relationship to the natural environment, to combine the researches in the two aspects. Our group has been engaged in researches on the photochemical properties and application to water pollution control of different ferric species including Fe -OH complexes, Fe -polycarboxylate complexes, Ferric oxides and Fe -humic acid complexes. Fe -oxalate complexes system has higher efficiency than the other ferric species systems in photooxidation and degradation of organic compounds. This thesis is focused on the photodegradation of nine EDs estradiol (E2), estrone (E1), 17α-ethynyl estradiol (EE2), diethylstilbestrol , bisphenol-A , 4-Nonylphenol , 4-Octylphenol , di-n-butyl phthalate , and di (2-ethylhexyl) phthalate .

因此从处理效率和环境化学意义两方面考虑，结合本课题组在不同铁形态（包括Fe-OH配合物、Fe-多羧酸配合物、Fe氧化物、Fe-腐殖酸配合物等）的光化学特性及其在水污染控制中的应用方面较系统的研究工作基础，本论文选择了四类共9种典型的内分泌干扰物（雌二醇（E2）、雌酮（E1）、17α-乙炔基雌二醇（EE2）己雌酚、双酚A、壬基酚、辛基酚、酞酸二丁酯和酞酸二乙基己基酯），研究了它们在Fe-草酸盐配合物体系中的光降解效果，推测其降解机理，探索环境内分泌干扰物光氧化处理的新体系，同时为预测其在环境中的光降解行为提供了依据。

AbstractThe present study was to observe the effect of diethylstilbestrol on fetal rat mesencephalic NSCs in vitro, the mesencephalon of fetal mice at embryonic day 14 was collected and made into suspension.

为观察己烯雌酚对体外培养的胎鼠中脑神经干细胞增殖分化的影响，将孕14 d的SD大鼠胎鼠中脑取出，制成单细胞悬液行悬浮培养，5 d后行NSCs鉴定、传代及诱导分化实验。

ConclusionThe extracts of Phrynium capitatum Willd flower with butyl alcohol and with water have excitatory effects on the non-pregnant or diethylstilbestrol-injected animal uterus in vitro ,which is more potent than that of Herba Leonuri fluid extract.

结论棕叶花正丁醇、水溶性组分对家兔、豚鼠、大鼠、小鼠离体子宫有明显兴奋作用。对离体子宫兴奋作用比益母草流浸膏显著。

ConclusionThe extracts of Phrynium capitatum Willd flower with butyl alcohol and with water have excitatory effects on the non-pregnant or diethylstilbestrol-injected animal uterus in vitro ,which is more potent than that of Herba Leonuri fluid extract.

结论棕叶花正丁醇、水溶性组分对家兔、豚鼠、大鼠、小鼠离体子宫有明显兴奋作用。对离体子宫兴奋作用比益母*流浸膏显著。

A method has been developed to determine residual stilbenes such as diethylstilbestrol, dienestrol and hexestrol in animal tissues using solid phase extraction and gas chromatography-mass spectrometry.

建立了动物组织中己烯雌酚、己二烯雌酚和己烷雌酚残留量的气相色谱-质谱分析方法。

College of Veterinary Medicine, China Agricultural University, Beijing 100094, China Abstract: A method has been developed to determine residual stilbenes such as diethylstilbestrol, dienestrol and hexestrol in animal tissues using solid phase extraction and gas chromatography-mass spectrometry.

动物组织样品在碱性条件下用乙酸乙酯提取，经碳酸钠溶液液-液分配净化，再用硅胶柱固相萃取净化，洗脱液均分成两份后经氮气吹干，分别用双三甲基硅基三氟乙酰氨和七氟丁酸酐衍生，采用选择离子监测模式进行测定，外标法定量。

Diethylstilbestrol:(1) medication during early pregnancy can cause fetal hydrocephalus, cerebral meningocele, visceral malformations, feminization of male fetus, penile deformity, such as cervical deformity.

乙烯雌酚：(1)妊娠早期用药可致胎儿脑积水，脑脊膜膨出，内脏畸形，男胎女性化，阴茎畸形，官颈畸形等。2、女婴长大后易出现阴道腺癌、阴道腺病及阴道腺癌、子宫颈腺癌、子宫发育不全，月经过少和不孕等。

The results showed that at the concentration of 10-8 mol/L,diethylstilbestrol facilitated fetal rat mesencephalic NSCs proliferation and differentiation, and increased neuronal differentiation.

结果显示：己烯雌酚浓度在10-8mol/L时中脑NSCs增殖、分化明显，并能提高神经元的分化率。

NEW YORK Jul 27 - Women exposed in utero to the synthetic estrogen diethylstilbestrol which was used until the mid-1970s for miscarriage prevention, appear to be at increased risk of having children with esophageal atresia and tracheoesophageal fistula, Dutch and US researchers report in the July issue of the American Journal of Obstetrics and Gynecology.

纽约路透社7月27日健康新闻报道，Dutch及美国的研究人员在《美国妇产科学杂志》7月刊上报告称，女性服用70年代中期前一直用于预防流产的合成雌激素乙烯雌酚会增加胎儿食管闭锁和气管食管瘘的风险。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。