毒物兴奋效应

毒物兴奋效应是指在较低药物剂量水平时，随着剂量水平的增加，受试者对药物的不良反应降低。

Hormesis is that decreased risk of adverse effects would occur with increased dose levels when subjects are exposed to toxin at low levels .

虱螨脲对小菜蛾的幼虫生长发育表现出明显的抑制作用，仅对小菜蛾蛹及成虫表现出毒物兴奋效应。

Lufenuron was significantly inhibited the growth and development of larvae of the diamondback moth , but the pupae and adults appeared hormesis phenomenon .

因此我们这里用两个二次函数组成的分段函数构成了这种毒物兴奋效应现象的剂量&反应模型，其中较低剂量水平下的二次函数是U形曲线。

In order to describe this phenomenon , we characterize the overall dose-response relationship with a piecewise function that consists of a quadratic curve which is assumed to be U-shape curve and another quadratic curve at high dose levels .

虱螨脲处理的小菜蛾也表现出毒物兴奋效应，其化蛹率和羽化率在低浓度（LC10和LC20）受到刺激升高，在高浓度被抑制而下降。

The DBM treated with lufenuron showed hormesis , stimulate increased pupation rate and emergence rate by low concentrations ( LC10and LC20 ), were decreased by inhibited at high concentrations .

有机磷农药对海洋微藻的毒物兴奋效应及其机理研究

Study on the Hormesis Induced by Organophosphorus Pesticides in Marine Microalgae and Its Mechanisms

前者的机制主要是药剂削弱了自然控制作用，后者主要是药剂引起害虫的毒物兴奋效应及补偿作用（刺激产卵）。

Ecological resurgence is attributed to pesticides weakening natural control systems whereas physiological resurgence refers to pesticide-induced stimulation of pest reproduction or hormesis .

正己烷可能存在毒物低剂量兴奋效应（3.01g/m3，静式吸入染毒6周），但其结果及确切机制尚有待进一步观察。

The observed dose response suggests the presence of a hormesis effect ( n-hexane inhalation for six weeks at dose of 3.01g / m3 ), but the result and the exact mechanism is still to be seen .

生理学家曾指出，微量的毒物实际上可能会让生物体（包括人类）更加健康，这种现象叫做毒物兴奋效应。

Physiologists have shown that minuscule doses of poison may actually make organisms ( including humans ) healthier , a phenomenon called hormesis .