查询词典 lethal dose

Methods The cognitive impairment rat model was induced by hypodermic D-galactose injection and half fat feeder (6 weeks), the Morris water maze was used to screen the model rats, which were divided randomly into 4 groups (12 rats in each group): the model group, the hydrochloricdonepezil group (0.4 mg/kg, weight, sic passim), the low-dose Huannao Yicong Fang group (7 g crude drug/kg), the high-dose Huannao Yicong Fang group (14 g crude drug/kg), they were treated respectively by intragastric administration. Besides, a control group of 12 rats was set up, they were given tales doses of distilled water. After 4 weeks, the behavior of the rats was detected, the contents of plasma P-selectin and PAI-1 were measured by ELISA, also the hemorrheology was measured.

采用皮下注射D-半乳糖及喂饲半高脂饲料（6周）的方法造成大鼠认知功能障碍，Morris水迷宫行为学测试确定模型成功的动物，随机分成四组（每组12只：模型对照组给予等量水，盐酸多奈哌齐组（0.4mg/kg，体质量，下同），还脑益聪方低剂量组（7g生药／kg），还脑益聪方高剂量组（14g生药／kg），同时灌胃给药，并设立正常对照组，给予等量水。4周后，对大鼠行为学检测，应用酶联免疫法检测大鼠血浆P-选择素及PAI-1含量和血液流变学各项指标。

Mice were randomly divided into normal control group, aspirin group, Paulownia A prime high-dose group and low dose group.

小鼠40只，随机分为正常对照组、阿斯匹林组、泡桐甲素高剂量组和低剂量组。

Most notably, all patients with interstitial pneumonitis had a loading dose at the start of therapy, and an increase in sirolimus dose within 3 weeks prior to the onset of symptoms.

最值得注意的是，所有发生间质性肺炎的患者在初始治疗时都给予西罗莫司的负荷剂量，且在发生症状前3周西罗莫司剂量有上升。

The medicine groups (small dose and large dose group) were given the herb mentioned above 40 days. Take postcava blood to view the blood index and microanatomy of vessel wall.

造模成功后，给药组灌服药物40天，然后下腔静脉取血，测定各观察指标和主动脉血管壁组织学变化。

They do not always have an all-or-none effect; degrees of poisoning may occur, and at a given dose some substances are far more toxic than others (e.g., a pinch of potassium cyanide can kill, whereas a single dose of ordinary table salt must be massive to kill).

毒物不一定具有全或无效应；一些毒物的毒性比另一些毒物要大得多，如0.25克氰化钾就足以致命，而一次服用大量的精制食盐也会致命。

They do not always have an all-or-none effect; degrees of poison ing may occur, and at a given dose some substances are far more toxic than others (e.g., a pinch of potassium cyanide can kill, whereas a single dose of ordinary table salt must be massive to kill).

毒物不一定具有全或无效应；一些毒物的毒性比另一些毒物要大得多，如0.25克氰化钾就足以致命，而一次服用大量的精制食盐也会致命。

The punctiform necrosis in the liver were found in two rats for high dose group. The white pulp cells in spleen were rarefactively distributed in four rats for high dose group.

病理学检查显示，高剂量组2只大鼠肝细胞可见点状坏死，4只大鼠脾脏白髓细胞疏松分布，各只雄性大鼠睾丸生精小管管腔直径增大，各层生精上皮细胞数目增多。

The results show that the ratios of chlorophyll to carotenoid, purpurin and red pigment for four maize genotypes decrease under low P dose. Those of "7922" and "Ye107" are 0.4~0.8 times those under high P dose, with much higher decrease than in "178" and "(superscript *)082".

结果表明，低磷条件下，玉米叶片叶绿素／类胡萝卜素、叶绿素／紫色素和叶绿素／红色素均减少，其中基因型"7922"和"掖107"的叶绿素／类胡萝卜素、叶绿素／紫色素和叶绿素／红色素减少幅度较大，为高磷条件下的0.4~0.8倍，且减少幅度高于"178"和"082"。

To study the changes of testis nitric oxide synthase and apoptosis in high dose pyridoxine for the understanding of the molecular mechanism of high dose PN injurious action on the development and function oftestis.

为探讨大剂量吡哆醇对睾丸结构和功能损害的分子机制，研究其对睾丸一氧化氮合酶和细胞凋亡的影响。

The radiotherapy operators average dose is high than radiodiagnosis operators about 68.1%, the technicians and maintainers' average dose is high than doctors and nurses' in radiotherapy about 93.3%.

放射治疗工作人员个人剂量平均值高出放射诊断工作人员个人剂量平均值68.1%，放射治疗中技术员及维修人员个人剂量平均值高于放射治疗医护人员个人剂量平均值93.3%。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。