查询词典 lead acetate

To explore the effect of lead acetate on the growth of murine mesenchymal stem cells in vitro.

目的：探讨醋酸铅对小鼠骨髓间充质干细胞生长的影响。

Methods: The lead-poisoned mice were prepared by drinking water containing lead acetate, and the administration of Yinling Ⅰ or EDTANa2Ca to lead-poisoned mice was performed for 3 weeks. The number of white blood cell, the rate of carbon expurgation, the index of immune organ of mice were detected to evaluate the non-special immune function.

小鼠自由饮用醋酸铅溶液造模，分别予银苓Ⅰ号或依地酸钠钙治疗3周；观察外周血弊细胞计数、碳粒廓清指数K及校正指数α、免疫脏器指数等非特异性免疫功能指标的变化。

The method comprises:(1) weighing lead acetate hexahydrate and thioacetamide, and preparing aqueous solutions respectively, so that the concentration ratio of Pd2+ to S is 1:(1-4);(2) adding acetic acid into thioacetamide solution to adjust the pH value to 2-4;(3) adding poly surfactant into lead acetate solution, ultrasonicating to mix uniformly and obtain a colorless and transparent sol;(4) mixing the sol and thioacetamide solution;(5) placing the mixed solution in a sealed container, irradiating by 2.5 MeV and 40 mA electron accelerator with irradiation dose of 25-40 Mrad;(6) washing the product, centrifuging for separation, and drying to obtain black PdS nanoparticles.

本发明方法的工艺过程如下：首先称取一定量的六水合醋酸铅和硫代乙酰胺，各自配制成水溶液，其浓度比为使其中的铅离子浓度与硫原子浓度的比例为1∶1～1∶4；在硫代乙酰胺溶液中加入适量醋酸调节其pH值至2～4；醋酸铅溶液中加入少量表面活性剂聚乙烯醇，然后超声振荡，混合均匀，制成无色透明溶胶；随后将溶胶与上述的硫代乙酰胺溶液混合；将该混合液置于密闭容器中，并将其放置于2.5MeV、40mA的电子加速器产生的电子束辐照下进行辐照处理，其辐照剂量为25～40Mrad；然后将反应生成物清洗，并用高速离心机离心分离，然后干燥，最终得到黑色纳米硫化铅颗粒。

Other methods include alkaline formation of lead battery positive plates and electrooxidation of lead acetate in an alkaline solution.

其他方法包括在碱性环境制备铅电池的正极和在碱性溶液中用醋酸铅进行电氧化。

To explore the mechanisms of lead-induced apoptosis, PC 12 cells were exposed to 100 μmol·L-1 lead acetate for 24 h, and cellular morphology, cytoskeleton and ultrastructure were observed.

为了从形态学角度研究铅诱导细胞凋亡的机制，用100 μmol·L-1乙酸铅对PC12细胞进行染毒24 h，检测细胞整体形态、细胞骨架和细胞超微结构的改变。

Briefly, coronal brain sections (100 mm)were cut with a vibratome, postfixed with 4% glutaraldehydein 0.1 mmol/L cacodylate buffer (pH 7.4) for 1 h, andthen with 1% osmium tetroxide in 0.1 mmol/L cacodylatebuffer for 2 h. After rinsing with distilled water, the brainsections were treated with 1% aqueous uranyl acetateovernight, dehydrated in an ascending series of ethanolsto 100%, followed by dry acetone, and then embedded inDurcupan ACM. Ultrathin sections (0.1 mm) were cut andstained with 3% lead citrate and subsequently examinedwith a Zeiss transmission electron microscope (Zeiss Inc.,Thornwood, NY, USA).

简单的说，先用切刀制成100um的冠状脑切片，然后用含有4%戊二醛在0.1 mmol/L的二甲砷酸缓冲液(PH7.4)中固定1小时后，放在含有1%四氧化锇的0.1 mmol/L的二甲砷酸缓冲液中2小时，接着用蒸馏水冲洗后，放在1%的aqueous uranyl acetate中过夜，接下来用梯度酒精(至100%)脱水，然后用丙酮干燥，再用Durcupan ACM包埋，切成0.1um的超薄切片后用3%的lead citrate染色，随后用透射电子显微镜观察。

Changes of the NOS activity and the expression of NOS protein in central nervous systems of rats,which were subacutely intoxicated with oral exposure to lead acetate for 30 days,were observed with improved NADPH techniques and immunohistochemistry to study neurotoxic mechanism of lead.

本文采用SD成年大白鼠饮用醋酸铅水染毒30天，然后用改进的NADPH测定法及免疫组化SP法观察脑组织中NOS酶活性及NOS酶蛋白亚型的变化。

This study demonstrated that cytotoxicity of adrenoco rtical cells induced by lead acetate is probably attributed to mitochondria oxid ative stress. Mitochondria damage might be the early cellular and molecular even t in toxic effect of lead on adrenal cortex.

线粒体氧化应激介导肾上腺皮质细胞毒性可能是PbAc毒作用机制之一，线粒体损伤是铅致肾上腺皮质毒作用的早期细胞和分子事件。

TWF, lead acetate and cadmium chloride. Methods Using NADPH-d histochemistry to investigate activity change of NOS in the testis of mice, which were survived for 1,2,3,4 weeks after administration of TWF, lead acetate and cadmium chloride.

给予醋酸铅和氯化镉1周后，NOS阳性的睾丸间质细胞数量明显减少，并随给药时间延长而加重，NOS活性逐渐降低，给药4周后NOS阳性的睾丸间质细胞几乎不着色。

We killed some mice at the day 6th , the others were continue to expose to formaldehyde and observe their estrous cycle. HE staining was used to study the pathological changes happened in ovarian tissue. Uranium acetate and lead acetate double staining was used to study the ultrastructure of oocyte. E2 and LH level in blood serum was measured by radioimrnunoassay reagent kit.

第6d处死一批小鼠，用HE染色观察小鼠卵巢组织的病理改变，用醋酸铀—醋酸铅双重染色电镜下观察小鼠卵母细胞超微结构的损伤；用GSH测定试剂盒测定小鼠卵巢组织中的GSH含量；用E_2和LH放射免疫分析试剂盒分别测定小鼠血清中E_2及LH水平；采用超排卵法，计数超排卵数并收集卵母细胞，于油镜下观察生殖细胞遗传物质的损伤。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。