xenobiotics
外源性物质
常用释义
英音[ ˌzenəʊbaɪˈɒtɪks ]
美音[ ˌzenoʊbaɪˈɑːtɪk ]
基本释义
- n. 外源性物质；[生物]异种生物学；有害异物（xenobiotic 的复数）
例句
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1·Tumour susceptibility is associated with genetic polymorphism of xenobiotics metabolism enzyme and chromosomal aberrations et al.肿瘤易感性与异源物代谢酶遗传多态性和染色体畸变等相关。
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2·I believe it is absent because it is being coupled to toxins - neurotoxins, probably xenobiotics, because B-12 couples to nitrogen.我相信它是缺席，因为它被加上毒素-神经毒素，可能是外来物质，因为B - 12的夫妇氮。
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3·METHODS: Cytochrome P-450 enzyme activities were measured by biochemical assays. Xenobiotics were employed to observe their effects on CYP2A6 in vitro.方法：采用生化分析法，体外研究化学异物对CYP2A6酶活性的影响。
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4·In the aquatic ecosystem and environmental safety evaluation, aquatic crustacean are of important position and function, and they are very sensitive to the effect of xenobiotics.水生甲壳动物在水生态系统和环境安全评价中居于重要的地位，它们对存在于水中的外源化合物的影响非常敏感。
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5·Cytochrome P4501A2 (CYP1A2) plays a critical role in the oxidative metabolism of a variety of exogenous compounds such as drugs, environmental procarcinogens and other xenobiotics.细胞色素氧化酶p 4501a2 (CYP1A2)在药物代谢、前致癌物激活的过程中起重要的作用。
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6·In vitro liver cell models (mainly primary hepatocyte cultures), served as the most powerful in vitro research system are widely used for the study of hepatotoxicity of xenobiotics.体外肝细胞模型(主要是原代肝细胞培养)作为一种强有力的体外研究体系被广泛应用于化学异物的肝毒性研究。
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7·The inhibitive effect of natural antioxidant on oxidation and activation of xenobiotics mediated by lipoxygenase may be one of the mechanisms of its anti-toxic and anti-tumor effect.这些天然抗氧化剂对脂氧合酶介导外源化合物氧化和活化的抑制作用可能是其抗毒防癌作用的机制之一。
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8·A double wavelength-differential-first order derivative spectrophotometric assay was established to determine carbon monoxide (CO) generation during in vitro metabolism of xenobiotics.用双波长、差示、一阶导数分光光度法，建立了一种测定外源物体外代谢时一氧化碳(CO)生成量的新方法。
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9·Objectives: To set up the methods of mouse embryo fibroblasts culture in vitro and to evaluate the toxicity of xenobiotics such as chloride cadmium and formaldehyde by using these methods.目的 在本实验室建立小鼠胚胎成纤维细胞培养方法，并在此基础上用培养的细胞检测氯化镉、甲醛等外来化合物的细胞毒性反应。