expression of toxicity 中文意思是什麼
expression of toxicity
解釋
毒性符號- expression : n 1 表現，表示，表達。2 詞句；語句，措辭，說法。3 表情，臉色，態度；腔調，聲調。4 【數學】式，符...
- of : OF ＝Old French 古法語。
- toxicity : 動脈穿壁封閉預
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Mdr1 express product p - glycoprotein was detected by immunocytochemical method and flowcytometry. the cytotoxicity and multidrug resistance reversion effect of tea polyphenol was examined by mtt assay in mcf - 7 and mcf - 7 adr carcinoma cell lines, and compared with pgp inhibitor quinidine. the pgp expression of mcf - 7 adr was strongly positive, the positive rate was 15 % ; the pgp expression of mcf - 7 was negative, the positive rate was 1. 8 %. ic50 of tea polyphenol to mcf - 7 and mcf - 7 adr is 115. 2g ml and 207. 6g ml respectively. ic50 of quinidine to mcf - 7 and mcf - 7 adr is 129. 8mol l 42. 1g ml and 94. 1mol l 30. 5g ml respectively. tea polyphenol and quinidine changed little toxicity of adriamycin to mcf - 7, but tea polyphenol and quinidine improved the sensitivity of mcf - 7adr to adriamycin significantly. immunocytochemistry and flow cytometry can detect p - glycoprotein expression level qualitatively and quantitatively. tea polyphenol is not only an anti - tumor agent, but also a multidrug resistant modulator similar as quinidine. tea polyphenol is advantageous for its little toxicity in tumor treatment
用免疫組化法和流式細胞儀對腫瘤細胞系mcf - 7和mcf - 7 adr的p -糖蛋白表達水平進行定性定量研究。用噻唑藍比色法mtt研究茶多酚的細胞毒性及其對耐藥性的逆轉作用，並與pgp抑制劑奎尼定進行了比較。免疫組化法檢測p -糖蛋白表達水平， mcf - 7 adr呈強陽性，而mcf - 7呈陰性流式細胞儀定量檢測結果mcf - 7 adr細胞系細胞陽性率為15 % ， mcf - 7細胞系細胞陽性率為1 . 8 % 。 -
The recombinant b. thuringiensis subsp. israelensis b - pmpx2 can produce a rhombus crystalline inclusion body during its sporulation sds - page analysis proved that cytlaa had overexpressed during the sporulation of the recombinant. it was found that b - pmpx2 strain remained stable toxicity, whatever during vegetative phase or sporulation phase, which was similar to the expression of mtxl gene in the strain of protease ( s ) - deficient b. sphaericus
同時，將來源於蘇雲金芽孢桿菌以色列亞種（ b . thuringiensissubsp . israelensis ， b . t . i ）的cytlaa基因和p20伴侶蛋白基因克隆連接到質粒pmt9中，並轉化到蘇雲金芽孢桿菌無晶體型中得到重組轉化子b - pmpx2 ，電鏡觀察發現重組轉化子b - pmpx2形成一菱形晶體。 -
The properties of expressing cry1ac and crylca in bmb171 was also studied by quantifying the expression level and determining the toxicity of the relevant transformants again st two lepidopteran larvae
對小菜蛾3齡幼蟲和甜菜夜蛾初孵幼蟲的毒力測定結果表明， bmb171表達cry1ac基因的殺蟲毒力高於bt - 4q7和bt - 4d10 ，略低於bti
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