نتایج جستجو برای: killing kinetics
تعداد نتایج: 121632 فیلتر نتایج به سال:
Interaction dynamics between Natural Killer (NK) cells and cancer targets have been the topic of many previous investigations, but the underlying rate-limiting kinetics and heterogeneity remain poorly understood. In this study, using quantitative single cell microscopy assay, we elucidate the differential dynamic control of NK-cancer cell interaction by multiple cytotoxic pathways. We found pri...
the interaction of radiation with cells and tissues has a random nature. therefore, understanding the random nature of cell killing that is determined by poisson distribution statistics is an essential point in education of radiation biology. radbiostat is a newly developed educational matlab-based software designed for computer-assisted learning of the target theory in radiation biology. altho...
The kinetics of cell turnover for myeloid/monocyte cells that form colonies in agar (GM-CFC) were measured through the progressive increase in their sensitivity to 313-nm light during a period of cell labeling with BrdCyd. Two components of cell killing with distinctly separate labeling kinetics revealed both the presence of two generations within the GM-CFC compartment and the properties of th...
The kinetics of Bacillus anthracis toxin production in culture and its lethal activity in rats, mice, and guinea pigs were investigated. Lethal toxin activity was produced in vitro throughout exponential growth at essentially identical rates in both encapsulated virulent and nonencapsulated avirulent strains. The two toxin proteins which produce lethality when in combination, lethal factor (LF)...
A novel lipid formulation of Nystatin (NYT), Nystatin-Intralipid (NYT-IL), which was found to be more active and less toxic in vitro and in vivo, was developed in our laboratory. The aim of the present study was to explore the possible mechanisms underlying its biological activity. To assess mechanisms affecting fungal cells we conducted the following experiments: killing kinetics, scanning and...
insulting to prophet or imam is obscene, shameful and insupportable for any muslim, so the person who insults must be killed. any where that there is no islamic government or it has not been ordained any rule about killing insulter; killing insulter has no retaliation (punishment). but when legislator especially issued a rule for killing punishment in article513 for the crime of insulting to pr...
staphylococcus aureus is an opportunistic pathogen and remains a common cause of burn wound infections. different studies have shown that entrapment of plant-derived compounds into liposomes could increase their anti-staphylococcus aureus activity. silymarin is the bioactive extract from the known plant silybum marianum l. the objective of this study was to evaluate efficacy of silymarin in fre...
The base of this study has been demonstrated the use of different drugs and dosages on different tumour cell lines and finally the effect of these drugs on natural killerllimphokine activated killer (NK/LAK) Killing. Tumour cells as target , mononeuclear cell activated with inter leukin-2(LAK) as effector, anti cancer drugs like tamoxifen , pentoxifylline , cycloheximide and cisplatin as stimul...
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