致死量

毒性试验表明：毒素致死量为0.2μg。

Mice toxicity determination indicates that the lethal dose of intact ricin was 0.2 μ g.

亚致死量~（60）Coγ射线照射后小鼠骨髓造血细胞程序性死亡特性研究

Characterization of Programmed Cell Death of Bone Marrow Cells in Sublethally ~ 60Co γ Irradiated Mice

在最小致死量E.智能型氧量分析仪的设计

After E. The Design for Intelligent Oxygen volume analyzer

以序贯法研究不同剂量的P对小鼠静脉注射K的半数致死量（LD50）的影响，并探讨P对清醒家兔静注K的呼吸循环效应的影响。

The influence of P on the circulatory and respiratory effects of K was studied in rabbits .

胎肝移植对~（60）Coγ线致死量照射治验一例

The effect of fetal liver transplantation for ~ ( 60 ) Co γ ray acute lethal irradiated Injury-A Case Report

结论SD大鼠麻醉量与致死量之间差距小。

Conclusion The gap between anesthetic and lethal dose of sodium barbiturate on rats is little .

Weibull分布：药物最小致死量的理论分布

Weibull Distribution : Theoretical Distribution of the Minimal Lethal Dosage of Drugs

目的测定百草枯对小鼠的半数致死量（halflethaldose，LD50）。

Objective To measure the half lethal dose ( LD_ ( 50 )) of paraquat in mice .

半数致死量LD（50）的百分偏差和渐近方差

Percentage Bias and Variance of LD_50

实验对~（60）Coγ线致死量照射骨髓移植小鼠的放射性白内障发展过程进行观察。

The development of mice cataract after ~ ( 60 ) Co γ - ray le-thal dose irradiation and bone marrow transplantation was observed .

方法以Bliss法计算半数致死量（LD50）；

Methods LD_ ( 50 ) was measured by Bliss ;

方法：喘安小鼠灌胃测定半数致死量（LD50）。

Methods : To measure 50 % lethal dose by lavage .

用改良寇氏法计算半数致死量（LD50）及95%可信限。

The LD50 and 95 % creditability were calculated with developed Karber Method .

C组：半致死量4Gy照射；

C group : the dose of X-irradiation was 4 Gy ( Sub lethal dose s );

龙葵素对KM小鼠的半数致死量（L氏，）为434mg/kg体重。

The LD50 of solanine was estimated to be 434 mg / kg BW in mice .

方法：采用溶血试验测定红细胞半数致死量（LD50）。

Method : The red cell LD_ 50 was determined by the hemolytic experiment .

方法：经典的半数致死量LD50测定法。

Method : Classical LD50 test .

用甲硝唑体外分别作用于7个分离株，得其最小致死量（MLC）。

Minimal lethal concentrations ( MLC ) of metronidazole on the isolates were measured in vitro .

其半数致死量（LD50）为4.1×104个细菌。

The 50 % lethal dose of the bacterium was 4 1 × 10 4 cpf / mL.

结果，脾内IL-12蛋白质含量：致死量组均低于正常组；

The results showed that IL 12 protein levels of the lethal infection group were lower than those of the intact controls .

结果破壁灵芝孢子油对雌雄小鼠经口半数致死量（LD50）均大于10g/kg体重，为实际无毒级物质；

Results The orally LD50 of broken cellwall lucid ganoderma spore is more than 10 g / kg ;

结果急性毒性实验中，核桃提取物经口半数致死量（LD50）10g/kg体重；

Results The oral LD 50 of walnut extract was more than 10 g / kg body weight ;

结果采用霍恩法计算聚天冬氨酸小鼠经口半致死量（LD50）大于5000mg/kg；

Results Oral LD50 for mice was greater than 5 000 mg / kg calculated by Horn method .

观察10d动物的存活情况，计算昆明小鼠单宁经口半数致死量（LD50）。

The death ratios were observed and the median lethal dose ( LD 50 ) was calculated .

目的经食管超声心动图（transesophagealechocardiography，TEE）观察猪心腔中脂肪栓子的超声表现及猪脂肪栓塞的致死量。

Objective To study the manifestation of fat emboli ( FE ) on transesophageal echocardiography ( TEE ) in the pig 's heart chamber .

采用较低的细胞密度铺板，加入含最小致死量G418的DMEM培养基进行再次筛选；

The cells were planked with lower cell density , and further screened in DMEM medium containing G418 MFD ;

邻甲苯胺经口半数致死量为755mg／kg，属低毒类。

The LD50 of o-toluidine in mice by mouth is 755mg / kg . o-toluidine has lower toxicity .

采用体外微量细胞病变抑制实验及体内半数致死量LD（50）测定法，分别观察海藻硫酸多糖911对乙型脑炎病毒的作用。

The effects of marine polysaccharide sulfate-911 on encephalitis B virus was investigated through in vitro study of the inhibition on trace cellular damage and the determination of LD50 .

研究背景：脑缺血预处理（IschemiaPreconditioning，PC）是指脑经过短暂亚致死量的缺血预处理，可对随后的严重缺血产生耐受，从而起到保护作用。

Background : cerebral ischemic preconditioning ( Ischemia Preconditioning , PC ) refers to the brain after a brief sublethal ischemic preconditioning of subsequent severe ischemia of tolerance , which play a protective role .

致病力明显降低，对小白鼠的半数致死量大于1.0×108CFU（ColonyFormingUnits）。

In addition , the pathogenicity capability was greatly decreased and the 50 % lethal dose for mice was more than 1.0 × 108 CFU ( colony forming units ) .