Classic pharmacokinetics based on the detection of drug plasma concentration often seems difficult to evaluate the efficacy because of the mismatch of pharmacokinetics and ***-third of drug targets are located in cell...
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Classic pharmacokinetics based on the detection of drug plasma concentration often seems difficult to evaluate the efficacy because of the mismatch of pharmacokinetics and ***-third of drug targets are located in cells or subcellular *** multiple physiologic barriers and microenvironment can directly affect the intracellular drug metabolism and disposition and thus the concentration around the *** is a pressing need for pharmacokinetics to go deep into the cellular or subcellular *** cell models which are more close to pathophysiological conditions should be considered as the objects of study,and then establish the systematic theory and technology of drug metabolism and pharmacokinetics on the targeted cells or subcellular organelles,which can descript the dynamic process of drug metabolism in the target *** will realize the prediction from in vitro to in vivo.A visualized,detectable and quantifiable system on cellular/subcellular level will be established to clarify the dynamic change of drugs and *** on the construction of tumor high bionic in vitro three-dimensional cell model,the process of metabolism,pharmacokinetics and pharmacodynamics will be comprehensively studied to clarify the characteristics in different pathophysiological conditions and the regulatory *** the systematic evaluation from micro to macro,from cell and tissue to animal or human body,can provide a new theory and technology system for drug screening,preparation design and clinical rational administration.
目的:探索Microtox技术应用于红花注射液综合毒性检测。方法:以费氏弧菌为测试菌种,通过方法学考察确定最优检测体系及方法学可靠性;在最优检测体系条件下,对不同生产厂家所生产的红花注射液进行了发光菌综合毒性检测。结果:2 m L反应...
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目的:探索Microtox技术应用于红花注射液综合毒性检测。方法:以费氏弧菌为测试菌种,通过方法学考察确定最优检测体系及方法学可靠性;在最优检测体系条件下,对不同生产厂家所生产的红花注射液进行了发光菌综合毒性检测。结果:2 m L反应体系下,最优复苏液体积0.9 m L/支菌,每个待测样品加入最优的菌液体积50μL,最优检测时间10 min,最优p H范围5-10,且10 min时发光强度以80-120万为宜;重复性试验、中间精密度试验的相对标准偏差均小于15%;不同生产厂家A、B、C成品的EC50平均值分别为3.36%、5.58%、4.33%,具有显著性差异(P<0.05)。结论:红花注射液对费氏弧菌的毒性存在显著的浓度-效应关系,且不同生产厂家(包括原研单位在内)之间成品EC50值具有显著性差异,提示红花注射液成品生物学检测标准存在进一步提升的空间,应用Microtox技术检测红花注射液综合毒性并用于控制不同厂家成品质量的波动具有很好的应用前景。
目的:开发一项新的检测技术——Microtox技术,以用于参麦注射液的综合毒性检测。方法:以费氏弧菌为测试菌种,通过方法学考察确定最优检测体系及方法学可靠性;在最优检测体系条件下,首次以费氏弧菌对不同生产厂家所生产的参麦注射液进行发光菌综合毒性检测。结果:在2 m L反应体系下,最优复苏液体积0.9 m L/支菌,每个待测样品加入最优菌液体积50μL,最优检测时间为10 min,最优p H范围为5-10,且10 min发光强度以80-120万为宜;重复性试验、中间精密度试验的相对标准偏差均<15%;不同生产厂家A、B、C成品的EC50平均值分别为35.60%、92.34%、146.57%,具有极显著性差异(P<0.01)。结论:参麦注射液对费氏弧菌的毒性存在显著的浓度-效应关系,且不同生产厂家之间成品EC50值具有显著性差异,提示参麦注射液成品生物学检测标准存在进一步提升的空间,应用Microtox技术检测参麦注射液综合毒性并用于控制不同厂家成品质量波动具有很好的应用前景。
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