共查询到20条相似文献,搜索用时 125 毫秒
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目的 鲎素是来源鲎血细胞的一种抗菌肽,它能抑制HL-60细胞生长,诱导细胞凋亡.但是鲎素诱导细胞凋亡的确切机制尚未清晰.本研究探讨鲎素是否可以促进Fas/FasL的表达,诱导HL-60细胞凋亡,揭示鲎素诱导HL-60细胞凋亡的可能机制.方法 Hoechst 33258和PI双荧光染色观察细胞调亡,流式细胞仪检测细胞调亡.Western blotting检测easpase-3,caspase-8活性变化,Fas,FasL,FADD表达变化.结果 鲎素处理HL-60细胞后,细胞调亡,caspase-3,caspase-8被激活,Fas,FasL,FADD表述时间依赖性上调.结论 鲎素诱导HL-60细胞凋亡可能与死亡受体介导的途径相关. 相似文献
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关于鲎试剂法测定血液保养液热原的方法山西省肿瘤医院(030013)李桂香,蔡新民我们从1985年以来,采用鲎试剂法代替家兔致热实验对医院自制的10%葡萄糖注射液、5%葡萄糖注射液、氯化钠注射液和注射用水等四种大输液的热原进行检测,取得满意效果。在此基础上又大胆开展了鲎试剂法对血液保养液热原的检测,经过反复试验,同样取得良好效果,为临床安全用药提供了可靠的保证,从而打破了卫生部暂时制定的鲎试剂只能检测上述四种大输液热原的格局。为鲎试剂检测热原开辟了又一条新的途径。现介绍如下:材料与方法一、材料:鲎试剂采用福建省药检所鲎试剂研究室生产的东方鲎试剂,批号:850515、860112、860906、870820,灵敏度为0.1ng/ml使用前用鲎试剂溶解水溶解。内毒素工作标准品:批号,85003、86004、86005、87008。使用前用10倍稀释法稀释至0.2ng/ml作为阳性对照。鲎试剂溶解水,作为稀释鲎试剂和阳性对照组。血液保养液用本院制剂室生产的。仪器用电热恒温水浴锅型号为HHS,江苏红旗医疗器械厂生产。洁净工作台用CJ-1B,北京半导体设备一厂生产。二、操作方法:先稀释供检品,浓度与家兔法一致。按照药典 相似文献
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鲎试剂的研究及应用进展 总被引:3,自引:0,他引:3
鲎试剂已广泛用于细菌内毒素的检验,本文介绍了鲎试剂的生产、分类,用于细菌内毒素检查的反应原理和检测方法、应用领域以及国内外鲎试剂生产和质量的现状和研究进展,并提出了我国鲎试剂应用中急需解决的问题。 相似文献
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鲎试剂法用于脑复素注射液细菌内毒素检测条件探索 总被引:1,自引:0,他引:1
本文采用增强或抑制试验,对本厂生产的脑复素注射液进行了细菌内毒素检测考察。按照中华人民共和国药典“细菌内毒素检查法”操作,采用鲎试剂与细菌内毒素的凝集试验。根据三批样品实验结果表明,脑复素80倍稀释液对灵敏度为0.125Eu/ml的鲎试剂无增强或抑制作用,故本品适合用鲎试剂作内毒素检查。 相似文献
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介绍欧洲药品管理局(EMA)于2018年8月15日发布的"草药产品或传统草药产品质量指南(第3修订版草案)"主要内容。EMA的草药及其产品的情况与我国中药有相似之处,而我国目前尚未制定关于中药或中药材(饮片)的质量研究相关指导原则,该指南相关质量和稳定性研究的指导思路可为中药的质量研究提供参考。 相似文献
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Sheng-Ji P 《Pharmaceutical biology》2001,39(Z1):74-79
Ethnobotany, as a research field of science, has been widely used for the documentation of indigenous knowledge on the use of plants and for providing an inventory of useful plants from local flora in Asian countries. Plants that are used for traditional herbal medicine in different countries are an important part of these studies. However, in some countries in recent years, ethnobotanical studies have been used for the discovery of new drugs and new drug development. In general, experiences gained from ethnobotanical approaches of traditional medicinal studies in China and Himalayan countries have helped drug production and new drug development. At the same time, in many cases, over-harvesting, degradation of medical plants, and loss of traditional medical knowledge in local communities are common problems in these resource areas. Issues of indigenous knowledge, intellectual property rights, and uncontrolled transboundary trade in medicinal plants occur frequently in the region. This paper discusses ethnobotanical approaches of traditional medicinal studies, in reference to experiences from China and Himalayan countries, with an emphasis on the conservation of traditional medical knowledge and medical plant resources. 相似文献
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目的:为完善我国仿制药一致性评价中参比制剂选择机制和程序提供参考,为仿制药企业在应用选择参比制剂时提供思路。方法:详细介绍了美国FDA有关参比制剂选择指南草案的最新描述,以及欧盟、日本和WHO对于参比制剂的相关要求。结合我国现阶段仿制药一致性评价工作实际,为完善参比制剂选择程序提出建议。结果与结论:美国详细规定了仿制药参比制剂的选择思路和实际操作程序,为我国仿制药参比制剂的选择提供了新的思路。我国正处于仿制药一致性评价参比制剂遴选的关键时期,制定全面、完善的参比制剂遴选体系和机制,有助于规范参比制剂的选择程序,加快一致性评价工作进程,提升我国仿制药一致性评价参比制剂选择的科学性和完整性。 相似文献
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Horseshoe crabs are an ancient invertebrate which possesses powerful innate immune defense against microbes. The simplicity, specificity and rapidity of its antimicrobial response have accorded the horseshoe crab as an excellent animal model from which immune responsive tissues may be procured for biomedical research. Such usefulness is exemplified by the extensive application for nearly four decades, of the limulus amebocyte lysate (LAL) for sensitive detection of endotoxin in the medical industry. Apart from the amebocytes, the cell-free hemolymph (CFH) of this arthropod offers a large repertoire of evolutionarily conserved proteins, which are highly sensitive to pathogens. This makes the hemolymph an ideal physiological microenvironment for simulating an in vitro infection. We therefore propose to employ the CFH as a quick and convenient tool for antimicrobial drug screening in vitro. This specific drug screening system also provides further optimization of drug design, and selection of drugs with antioxidant properties. Being an easily accessible natural resource, and allowing high-throughput screening with uniform and reliable data output, the horseshoe crab CFH provides a desirable physiological milieu for drug screening and development. 相似文献
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欧盟(European Union,EU)于2016年7月发布了《在欧盟草药专论编写中评估公认的和传统的草药产品临床安全性和有效性的指导原则(第一次修订版)》。其中最值得注意的是,草药产品申请注册时可用文献资料替代试验资料,并且可根据文献资料科学性不同,获准不同的适应证。介绍该指导原则的主要内容,期望对我国的中药和植物药研究及其监管有所帮助。 相似文献
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Several jurisdictions around the world have introduced policies and laws allowing for the legal use of cannabis for therapeutic purposes. However, there has been little critical discussion of how the object of ‘medicinal cannabis’ is enacted in policy and practice. Informed by Carol Bacchi’s poststructuralist approach to policy analysis and the work of science and technology studies scholars, this paper seeks to problematise the object of ‘medicinal cannabis’ and examine how it is constituted through governing practices. In particular, we consider how the making of the object of ‘medicinal cannabis’ might constrain or enact discourses of pleasure. As a case example, we take the Victorian Law Reform Commission’s review of law reform options to allow people in the Australian state of Victoria to be treated with medicinal cannabis. Through analysis of this case example, we find that although ‘medicinal cannabis’ is constituted as a thoroughly medical object, it is also constituted as unique. We argue that medicinal cannabis is enacted in part through the production of another object (so-called ‘recreational cannabis’) and the social and political meanings attached to both. Although both ‘substances’ are constituted as distinct, ‘medicinal cannabis’ relies on the ‘absent presence’ of ‘recreational cannabis’ to define and shape what it is. However, we find that contained within this rendering of ‘medicinal cannabis’ are complex enactments of health and wellbeing, which open up discourses of pleasure. ‘Medicinal cannabis’ appears to challenge the idea that the effects of ‘medicine’ cannot be understood in terms of pleasure. As such, the making of ‘medicinal cannabis’ as a medical object, and its invocation of broad notions of health and wellbeing, expand the ways in which drug effects can be acknowledged, including pleasurable and desirable effects, helping us to think differently about both medicine and other forms of drug use. 相似文献