tail assay

The grade of DNA breakage and tail length of Comet assay were used to measure DNA damage.

观察指标包括DNA断裂分级（将DNA断裂损伤细胞按其损伤程度分级）及DNA彗星尾长（彗头末端到彗尾的长度）。

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DMA damage were detected by single-cell gel electrophoresis assay. After exposure the relative tail length of the comets and cells with DNA migration were increased.

采用单细胞凝胶电泳检测小鼠睾丸细胞DNA受损程度，显示DNA迁移细胞数和彗尾长度上升。

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In mouse heat radiation tail-flick assay and 55 ℃ hot plate assay, agmatine given by ig, at dose of 40mg/ kg could reduce the ED50 of morphine analgesia by 40%.

在小鼠55℃热板和小鼠热辐射甩尾实验中，灌胃给胍丁胺40mg／kg使吗啡镇痛量效曲线左移，吗啡镇痛ED（50）量较对照组减少40%。

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METHODS: Adopt some methods such as receptor binding assay, hot plate, the tail withdrawal reflex, EEG, hemodynamics and the randomized double blind evaluation.

方法：应用受体结合、热板、甩尾反射、EEG、血流动力学、随机双盲评价等方法。

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The long comet tail was presented on k562 cells which were treated with quercetin by comet assay;

彗星分析法显示经槲皮素作用的K562细胞出现长的彗尾条带；

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