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锌铅
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  zinc and lead
    Effect and Mechanism of Selenium, Zinc and Lead on Cellular Telomere and Telomerase
    硒锌铅对细胞端粒和端粒酶的作用及机理研究
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  zinc lead
    Study on the Relations between Height,Weight and Zinc, Lead in Hair or Blood of Children
    幼儿身高、体重和头发、血液锌铅含量关系的研究
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  zinc and lead
Although the reaction of α,α-dibromo-α-fluorotoluene with zinc and lead involves formation of fluoro(phenyl)carbene, this procedure is not suitable for the synthesis of 2-fluoro-2-phenylaziridines.
      
The Use of the Mortality Rate of Marine Fish Prelarvae for the Estimation of Zinc and Lead Toxicity
      
According to the results of model experiments with artificial contamination of soil, the flux of zinc and lead from the starting point (from a medium loamy leached chernozem) to the final point (wheat grains) sharply decreases.
      
The adsorption of zinc and lead on hair was dependent on the acidity of the hair and/or the medium in which the hair sample was immersed, suggesting that hair is an ion exchanger.
      
Age- and sex-related differences in zinc and lead levels in human hair
      
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  zinc lead
The reported experimental work on the systems PbOx-CaO and PbOx-CaO-SiO2 in air is part of a wider research program that combines experimental and thermodynamic computer modeling techniques to characterize zinc/lead industrial slags.
      
This research is part of a wider program to characterize zinc/lead industrial slags and sinters in the PbO-ZnO-SiO2-CaO-FeO-Fe2O3 system.
      


We studied the genotoxic effects of metallic compounds on animal cells by observing the index on micronucleus rate.

本试验以微核率为观察指标,研究金属化合物对动物细胞的遗传毒性效应。 实验指出镉、镍、锌、铅和铍等金属化合物可诱发小白鼠骨髓多染红细胞和血中淋巴细胞微核率增高,并观察到随着染毒剂量的增加诱发微核率相应的升高,遵循剂量—反应关系。 结果表明上述金属化合物在一定剂量时,对动物细胞的遗传物质具有致突变性作用。

his study used isolated rat hepatocytes to investigatethe joint toxic action of Cd ,Se,Cu, As,Sb,Hg,Zn Pb, Cr,Ni.Evidence of cellular injury was assessed by mediantoxic concentration(TC50). The results indicate:(1)theorder of the toxic potency in ten metal is Hg>Cd>Pb>As>Sb>Cu>Cr>Ni>Zn>Se;(2)there is synergic toxicaction between Hg-Cd and Cd-Pb; (3)Zn has protectiveeffect against Cd and Pb,Se can protect against toxic potency of Cd and As;(4)the joint toxic action of other metal pairs is addition action.

本文以大鼠游离肝细胞半数中毒浓度(TC_(50))对镉、硒、铜、砷、锑、汞、锌、铅、铬、镍10种金属组成29个配对进行了联合毒性的研究。结果表明:10种金属化合物肝细胞毒性大小顺序是汞>镉>铅>砷>锑>铜>铬>镍>锌>硒,与体内肝毒性顺序基本一致。汞、镉、铅三种金属之间有增毒作用,对其它金属的毒性亦有增毒作用。锌可以拮抗镉、铅、铜的毒性作用,硒可以拮抗汞、镉、砷对细胞的毒性,其余金属配对呈毒性相加作用。铬和砷对镉的细胞毒性表现为拮抗作用,其机理需进一步进行研究。

Isolated rat hepatocytes were used to investigate the joint toxic action of Cd, Se,Cu, As, Sb, Hg,Zn, Pb,Cr, and Ni in the study, Evidence of cellular injury was assessed by median toxic concentration(TC50). The results indicate: (1) the order of the toxic potency of ten elements are Hg, Cd, Pb, As,Sb, Cu,Cr,Ni, Zn and Se. (2) there is synergic toxic action between Hg-Cd and Cd-Pb.(3) Zn has protective effect against Cd and Pb, Se can protect against toxic potency of Cd and As.(4) the joint toxic action of other...

Isolated rat hepatocytes were used to investigate the joint toxic action of Cd, Se,Cu, As, Sb, Hg,Zn, Pb,Cr, and Ni in the study, Evidence of cellular injury was assessed by median toxic concentration(TC50). The results indicate: (1) the order of the toxic potency of ten elements are Hg, Cd, Pb, As,Sb, Cu,Cr,Ni, Zn and Se. (2) there is synergic toxic action between Hg-Cd and Cd-Pb.(3) Zn has protective effect against Cd and Pb, Se can protect against toxic potency of Cd and As.(4) the joint toxic action of other metal pair is an addition action.

采用细胞毒理学方法,以大鼠游离肝细胞半数中毒浓度(TC50)为观察指标,对镉、硒、铜、砷、锑、汞、锌、铅、铬、镍10种金属及类金属组成29个配对进行了联合毒性的研究。结果表明,10种金属及类金属化合物肝细胞毒性大小顺序是汞>镉>铅>砷>锑>铜>铬>镍>锌>硒,与体内肝毒性顺序基本一致。汞、镉、铅三种金属之间有增毒作用,对其它金属的毒性亦有增强作用。锌可以拮抗镉、铅的毒性作用,硒可以保护汞、砷对细胞的毒性,其余金属配对呈毒性相加作用。铬和砷对镉的细胞毒性表现为拮抗作用,其机理需要进一步进行研究。

 
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