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211217

新虫 (小有名气)

[求助] 求帮忙翻译一下下面这段话啊 ,急啊 已有1人参与

4.2.1药物对细胞的毒性测定
用胰酶将生长良好的HEp-2细胞分散成单个细胞悬液接种于96孔板。置37 ℃,5% CO2培养箱中培养24 h。待细胞长成单层后,弃培养液上清,加入不同浓度的含药维持液,每一药物浓度重复4孔,同时设正常细胞对照。每天于倒置显微镜下观察细胞变化,48 h后用MTT法检测细胞存活率。实验重复3次。以Probit回归方法计算药物半数毒性浓度(CC50),并根据细胞存活率找出药物对细胞的最大无毒浓度范围。
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genhunter

至尊木虫 (著名写手)

修饰后的
4.2.1 Cytotoxicity assay:
HEp-2 cells grown in exponential phase were trypsinized  and dispersed into single cell suspension and seeded into 96-well plates, cultured for 24 hrs at 37 ℃,5% CO2. Next day, the culture medium was removed and replaced with medium containing various concentrations of the drug in quadruplicates with medium alone as the control group. Cells were monitored daily under an invert light microscope for obvious morphological changes. 48hr later, MTT assays were conducted to determine cell viability. Each experiment was repeated 3 times.  By using probability unit method, the half maximal toxicity concentrations (CC50) were estimated, furthermore, based on cell viability results, the maximal non-toxic dose ranges were identified.
离成功还差一点
3楼2015-03-09 16:24:04
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genhunter

至尊木虫 (著名写手)

【答案】应助回帖

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感谢参与,应助指数 +1
211217: 金币+10 2015-03-09 16:30:22
211217: 金币+5, 帮我把这段也翻译一下吧,谢谢你哈!4.2.2药物抗病毒活性实验 根据细胞毒性实验结果,在药物无毒浓度范围内,将不同浓度的药物分别与100 TCID50的CVB3病毒液混合,感染已长成单层的HEp-2细胞,37 ℃,5% CO2培养箱孵育1 h后,弃上清,PBS洗涤后加不同浓度的含药维持液继续培养。每天于倒置显微镜下观察细胞变化;待病毒对照孔细胞病变效应(CPE)达90%以上且细胞对照正常时,用MTT法检测病毒抑制率。每一药物浓度重复4孔,同时设正常细胞对照、病毒对照和利巴韦林阳性对照。以Probit回归方法计算药物半数有效浓度(IC50)。 4.3.3药物作用后病毒感染力测定 于已长成单层的HEp-2细胞上,每孔感染100 TCID50/0.1 mL的CVB3或HSV-1病毒,PBS洗涤后加入32g/mL的含药维持液继续培养。药物处理48小时后收培养板,反复冻融3次,取培养上清,连续10倍稀释,用Reed-Muench法测定感染性病毒滴度。同时设病毒对照和利巴韦林阳性对照。 2015-03-09 16:34:04
4.2.1药物对细胞的毒性测定
用胰酶将生长良好的HEp-2细胞分散成单个细胞悬液接种于96孔板。置37℃,5% CO2 培养箱中培养24 h。待细胞长成单层后,弃培养液上清,加入不同浓度的含药维持液,每一药物浓度重复4孔,同时设正常细胞对照。每天于倒置显微镜下观察细胞变化,48 h后用MTT法检测细胞存活率。实验重复3次。以Probit回归方法计算药物半数毒性浓度(CC50),并根据细胞存活率找出药物对细胞的最大无毒浓度范围。
4.2.1 Cytotoxicity assay:
HEp-2 cells grown in exponential phase were trypsinized  and dispersed into single cell suspension and seeded into 96-well plates, cultured for 24 hrs at 37 ℃,5% CO2. The next day, the culture medium was removed and replaced with medium containing various concentration of drug in quadruplicates with medium alone as the control group. Cells were monitored daily under an invert light microscope for obvious morphological changes. 48hr later, MTT assays were conducted to determine the cell viability. Each experiment was repeated 3 times.  By using probability unit method, the half maximal toxicity concentrations (CC50) were estimated, furthermore, based on cell viability results, the maximal non-toxicity dose ranges were identified.
离成功还差一点
2楼2015-03-09 15:21:20
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