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应用大鼠拟皮肤模型评价巯基乙酸的皮肤毒作用 被引量:13
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作者 浦跃朴 尹立红 韩运双 《环境与职业医学》 CAS 北大核心 2003年第2期69-72,共4页
[目的 ]探讨巯基乙酸 (TGA)的皮肤毒作用及其拟皮肤模型替代正常皮肤应用于皮肤毒理学研究的可行性。[方法 ]应用导电聚吡咯膜技术扩增大鼠角质形成细胞和成纤维细胞 ,将胶原蛋白与成纤维细胞混合培养构建拟真皮 ;种植角质形成细胞在拟... [目的 ]探讨巯基乙酸 (TGA)的皮肤毒作用及其拟皮肤模型替代正常皮肤应用于皮肤毒理学研究的可行性。[方法 ]应用导电聚吡咯膜技术扩增大鼠角质形成细胞和成纤维细胞 ,将胶原蛋白与成纤维细胞混合培养构建拟真皮 ;种植角质形成细胞在拟真皮上 ,经培养形成拟皮肤。在拟皮肤和新生大鼠皮肤上涂布巯基乙酸溶液局部染毒 1h ,培养一定时间后对表皮进行组织学观察。 [结果 ]在光镜下可见所构建的大鼠拟皮肤模型具有与正常新生大鼠皮肤相类似的结构 ,包括真皮 ,完整的基底层、分化细胞层与角质层。用 1 %~ 8%浓度的TGA进行 1h染毒后即能引起拟皮肤和新生大鼠皮肤一定程度的病理学改变 ,包括角质层松散、细胞分层模糊、颗粒层消失、基底细胞变性等。两者对TGA的反应有着较大相似性。 [结论 ]使用低于我国化妆品卫生规范 (卫法监发 [2 0 0 2 ]第 2 2 9号 )的浓度 ,TGA接触皮肤 1h即可出现明显皮肤损害的病理学改变 ;大鼠拟皮肤模型对外来毒物损伤可做出类似大鼠皮肤的损伤反应 。 展开更多
关键词 皮肤模型 巯基乙酸 皮肤毒作用 理学 胶原蛋白 成纤维细胞
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In Vitro Study on the Effect of Bee Venom on Some Cell Lines and Lumpy Skin Disease Virus
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作者 Samia Ahmed Kamal 《Journal of Agricultural Science and Technology(A)》 2016年第2期124-135,共12页
Bee venom (BV) was used from long time ago in the medical field as treatment of chronic joint affections. In the recent decades, the screening process of new sources of antimicrobials discovers its high advantageous... Bee venom (BV) was used from long time ago in the medical field as treatment of chronic joint affections. In the recent decades, the screening process of new sources of antimicrobials discovers its high advantageous characteristics for combating various types of microbes, as well as trials to discover its anti-cancer medicinal fields. Lumpy skin disease virus (LSDV) causes disease in cattle of economic importance, and this work aimed to find treatment as well as alternative inactivant for LSDV. The use of bee venom as antiviral was experimented in this work and exhibited satisfied inhibitory effects on LSDV, meanwhile, the antigenic properties was still intact. The viability of virus was tested in tissue culture cells lines and in embryonated chicken eggs. According to doses and time of exposure, the cell lines of Hep-2 (human larynx carcinoma) and MCF7 (breast carcinoma cell line) were treated with different concentrations of BV and examined after 24 h post-inoculation. The Hep-2 and MCF7 cell lines were treated with various concentrations of BV in descending doses as follow: 25, 20, 15, 10, 5 and 0.5 ug/mL of BV. Then bee venom pathological effects on Hep-2 cells and MCF7 cells were observed, such as apoptosis, retarded growths and cytolysis. The results indicate the possibilities of using bee venom as anti-neoplastic and antiviral. 展开更多
关键词 Bee venom lumpy skin disease virus ANTICANCER Hep-2 cells MCF7 antiviral natural substances.
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