survival dose

CONCLUSION: With the increase of HIFU irritation time, the survival rate of tumor cells presents the linear decrease tendency. And 1 000 W/ cm2 × 30 seconds is the minimum dose of bringing cells into complete dead and breaking them into debris.

结论：当高强度聚焦超声声强固定为1000W/cm2时，细胞存活率随高强度聚焦超声辐照时间延长呈直线下降，1000W/cm2×30s是能灭活肿瘤细胞且使之完全破碎的剂量。

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Results: Calcium pantothenate could prolong the survival time at medium dose 〔 in mice from ( 4.4 ± 1.0) d to ( 5.6 ± 1.0) d,( P < 0.05);

结果：泛酸钙能够延长饥饿大、小鼠的存活时间，其中中剂量组小鼠的存活时间从（4.4±1.0）d延长到（5.6±1.0）d，（P<0.05）；

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Median lethal time, mean lifespan and mean maximum lifespan of drosophila fed with different concentration of ponceau 4R were lower than those in control groups dominantly ( P < 0.05 or P < 0.01) in survival experiment, and a dose-response relationship was shown.

生存试验中各浓度组雌雄果蝇的半数死亡时间、平均寿命及平均最高寿命均较对照组缩短（P<0.05或P<0.01），且存在剂量-反应关系。

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ALA-PDT significantly inhibited the growth of Eca-109 cells The cell survival rate between different ALA concentration and three different laser dose and under the same laser dose with different incubating concentration are all significant different ( all P0.01).

结果1.ALA-PDT对Eca-109细胞有显著的增殖抑制。不同光剂量及不同浓度其生存率间均有显著差异（P均0.01）。

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Furthermore, with only a half dose of DNA in the current system, by the horizontal system under × 100 magnification both the survival rate of pronuclear embryos following microinjection and the integration frequency of exogenous DNA injected into embryos also increased.

此外，利用该系统还可在低倍镜下（×100）将DNA常规注射量减半注射，提高了原核胚注射后的成活率，其注射胚的外源基因整合率亦明显提高。

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Conclusions: Radiotherapy is the first choice for lethal midline granuloma. The recommended dose is 50~ 60Gy for 5~ 6 weeks. Chemotherapy can improve the symptoms, but can not increase the survival rate.

结论：放疗是恶性肉芽肿首选治疗方法，肿瘤量以50～60Gy／5～6w为宜，化疗可改善症状但不提高远期生存率。

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