毒性指数

用毒性指数（TI）表示肺损伤程度，煤饼（蜂窝煤）、液化石油气及煤气燃烧颗粒物的TI分别为8.09、6.59和3.82。

Pulmonary injury was expressed by toxicity index ( TI ) . The TI was 8.09, 6.59 and 3.82 for particulates from coal cakes , gas and liquefied petroleum gas combustion .

经活化的肺泡巨噬细胞（PAM）能抑制Hela细胞的增殖，其细胞毒性指数为57.90±2.48（P＜0.01）。

The activated pulmonary alveolar macrophage ( PAM ) can inhibit proliferation of Hela cell . The cytotoxicity index is 57.90 ± 2.48 ( P < 0.01 ) .

以这种关系为依据，提出了各种结晶型SiO2毒性指数、毒性分级和混有各种结晶型SiO2粉尘的毒性计算方法。

According to the correlation , the index and classification , of toxicity for crystalline silica were presented , and the calculating method for toxicity of the dust containing various kinds of crystalline silica was discussed .

其中，cgSIV的生长对镉十分敏感，而Pt715对镉具极高抗性，镉对两种外生菌根真菌的毒性指数分别为0.0055（Pt715）和0.0333（cgSIV）。

The biomass lowered with Cd concentration increase and Cg SIV was quite more susceptible to Cd than Pt 715.The toxic indexes of cadmium were 0.005 5 for Pt 715 and 0.033 3 for Cg SIV , respectively .

结论：低温对脑缺血的保护机制之一可能是降低了神经细胞的兴奋毒性指数。

Conclusion : The neuroprotective effect of hypothermia on cerebral ischemia may reside , in part , in its ability to decrease extracellular excitotoxic indexes .

结果：低温明显抑制了细胞外谷氨酸、甘氨酸浓度的升高，使兴奋毒性指数显著降低。

Results : Hypothermia significantly inhibited the release of glutamate and glycine , therefore the high excitotoxic index seen in the normothermic group was strikingly decreased in the hypothermic group .

Cu2+和Cd2+共存对蝌蚪的24h、48h和96h联合毒性相加指数（AI）分别为1.03、1.12和1.20。

The synergetic toxicity of Cu2 + and Cd2 + to tadpole in 24h , 48h and 96h addictive index were 1.03 , 1.02 and 1.20 in 24h , 48h and 96h respectively .

取代芳烃的急性毒性与连接性指数（~nL）的相关性

The Relationships Between Connectivity Index ( ~ nL ) and Acute Toxicities of Substituted Aromatics

精确的靶向性治疗能降低毒性，提高治疗指数。

Precisely targeting therapy can decrease toxicity and increase therapeutic index .

结果：玻璃陶瓷对实验小鼠无全身急性毒性作用，溶血指数1.38%，细胞生长无明显抑制现象，细胞毒性评分为Ⅰ级，对皮肤和口腔粘膜无刺激作用。

Results : no acute systemic toxicity effect was observed on rats , the hemolysis index was 1.38 % , the cytotoxicity score was one grade , and no stimulation effect was observed both on skin and oral mucosal membrane of rabbits .

43℃热疗+顺铂共同作用1h，其细胞毒性作用进一步增加，细胞毒性指数最高达72.37%；

While treated with 43 ℃ hyperthermia and cisplatin simultaneously , the cytotoxicity index increased to 72.37 % ;

本文通过分析不同材料燃烧产生的烟及毒性气体的特征，提出了烟气毒性浓度指数的概念，并以烟气毒性浓度指数划分材料燃烧后的毒性等级。

This paper analyzes characteristics of smoke and toxic gases for different combustible materials during burning period . A new concept of smoke and toxic gases density index is defined . RIA was used to examine the concentration of estradiol and progesterone .