尿嘧啶

Methods Human ileocecal carcinoma cells (HCT-8) were inoculated into the abdomen subcutis of BALB/C-nu/nu femal nude mice.

人回盲肠癌细胞HCT-8接种到BALB/C雌性裸小鼠腹部皮下，按预期方案进行氟尿嘧啶＋高能聚焦超声刀治疗。

In the present paper, the induction characteristic of lymphoblastoid, in-terferon in vitro is described. Results indicate that Namalwa cell line possesses a higher interferon-inducing ability than Raji and Yu-Nu cell lines. NDV B1 strain, F strain and Sendai virus can induce more interferon than BB1 virus and poly 1 : C. Priming of pretreating cells with homologous interferon or superinduction did not effect interferon production. The optimal cell concentration for interferon induction is about 106 cells/ml...

本文研究了类淋巴母细胞干扰素的诱导特性：Namalwa细胞系的干扰素诱生能力大于Raji和余奴系，而诱生剂中以NDV和仙台病毒诱生干扰素的能力较大，但"起动"和超诱导均无作用；诱生干扰素适宜的细胞浓度为10~6/毫升；增殖期的Namalwa细胞诱生能力较大；黄芪和5'-溴脱氧尿嘧啶核苷对Namalwa细胞干扰素的诱生系统有明显刺激作用，在最适条件下粗制干扰素平均滴度可达40，000单位/毫升。

In the present paper, the induction characteristic of lymphoblastoid, in-terferon in vitro is described. Results indicate that Namalwa cell line possesses a higher interferon-inducing ability than Raji and Yu-Nu cell lines. NDV B1 strain, F strain and Sendai virus can induce more interferon than BB1 virus and poly 1 : C. Priming of pretreating cells with homologous interferon or superinduction did not effect interferon production. The optimal cell concentration for interferon induction is about 106 ce...

本文研究了类淋巴母细胞干扰素的诱导特性：Namalwa细胞系的干扰素诱生能力大于Raji和余奴系，而诱生剂中以NDV和仙台病毒诱生干扰素的能力较大，但"起动"和超诱导均无作用；诱生干扰素适宜的细胞浓度为10~6/毫升；增殖期的Namalwa细胞诱生能力较大；黄芪和5'-溴脱氧尿嘧啶核苷对Namalwa细胞干扰素的诱生系统有明显刺激作用，在最适条件下粗制干扰素平均滴度可达40，000单位/毫升。

Methods: To observe the effect of individual and associated drugs on HeLa cells the methyl thiazolyl tetrazolium assay was used.

采用MTT例定法观察顺铂、5-氟尿嘧啶及甲氨喋呤单用及合用对Hela细胞的影响，流式细胞仪观察凋亡及细胞周期的变化。

The waves are very useful for the determination Of these compounds, for homocystine, 6-mercaptopurine and thiouracil, the detection limits are 2×10-8, 8×10-8 and 5×10-8 mol/L,respecrespectively.

处产生的阳极化波较为灵敏，其检测限为2×10－8mol／L高胱氨酸，线性范围为8×10－8～1×10－5mol／L.6－巯基嘌呤和硫尿嘧啶在乙二胺介质中与铜产生的络合物波较好，前者在－0.83V处和后者在－0.44V处的阴极波较适合于分析。它们的检测限分别为8×10－8mol／L和5×10－8mol／L，线性范围为1×10－7～1×10－5和1×10－7～2×10－5mol／L。

Sensitive polarographic waves which relate to thiouracil, 6-mercaptopurine and homocystine(in sodium citric acid buffer solution) appeared in the presence of Cu.

高胱氨酸、6－巯基嘌呤和硫尿嘧啶均能与铜离子作用而在汞电极上产生两个吸附波。在柠檬酸钠溶液中，高胱氨酸与铜的络合物在－0.06v

T4; Thiouracil ; Chick ; Digestive enzyme ; Hatchability ; Yolk absorption

T_4；硫尿嘧啶；鸡；消化酶活性；孵化率；卵黄囊吸收

Objective:To determine flourouracil concentration in serum,peritoneal fluid and rectum tissue by high performance liquid chromatography.

目的：建立测定血液、盆腔液和直肠组织中氟尿嘧啶浓度的高效液相色谱方法。

What is the main way that uracil is created in DNA and why is the bad?

在 DNA 中的尿嘧啶是通过那种主要途径形成的，这种改变会产生怎样的有害结果？

Diagram the steps executed in the uracil repair system that are UNIQUE to this repair system.

阐述尿嘧啶修复系统修复的主要步骤，并列出这一修复系统所需要的酶。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。