نتایج جستجو برای: cellular
تعداد نتایج: 439946 فیلتر نتایج به سال:
Intracellular reactive oxygen species (ROS) play an important role in cancer stem cell (CSC) function. Hesperetin (Hst) is a flavonoid that has been shown to affect cellular ROS level. The goal of this study was to investigate the effect of Hst on the level of ROS in gastric CSCs (GCSCs). MTT assay was used to evaluate cell survival. Cellular ROS level was measured using 2′,7′-dichlorofluoresci...
Toxicity bioassays are important tools to determine biological effects of chemical agents on species. The questions remained on, what effects have been imposed on each of the different molecular site of cells by chemical exposure and how to find a pattern for chemical toxicity. To address the questions, HepG2 cell lines were exposed to the different concentrations of cisplatin for 24 hours to r...
Cities are growing and encountering many changes over time due to population growth and migration. Identification and detection of these changes play important roles in urban management and sustainable development. Urban growth models are divided into two main categories: first cellular models which are further divided into experimental, dynamic, and integrated models and second vector models. ...
Background and purpose: Finding an efficient vaccine against HÏV infection is still a major concern and a great challenge. Ïn our previous study, HÏV-1 virions with capability of a single replication were produced. Ïn the present study their immunological evaluation has been carried out to study their induction of cellular and humoral responses in mice model. Materials and methods: Ïn this s...
Toxicity bioassays are important tools to determine biological effects of chemical agents on species. The questions remained on, what effects have been imposed on each of the different molecular site of cells by chemical exposure and how to find a pattern for chemical toxicity. To address the questions, HepG2 cell lines were exposed to the different concentrations of cisplatin for 24 hours to r...
The recent discovery of diverse very large viruses, such as the mimivirus, has fostered a profusion of hypotheses positing that these viruses define a new domain of life together with the three cellular ones (Archaea, Bacteria and Eucarya). It has also been speculated that they have played a key role in the origin of eukaryotes as donors of important genes or even as the structures at the origi...
در این کار مدل سازی واکنش های غیر کاتالیستی گاز - جامد با روش اتوماتای سلولی مورد بررسی قرار گرفته است. این کار از دو قسمت تشکیل شده است، در قسمت اول یک واکنش شیمیایی به صورت شبکه ای دو بعدی طراحی شده است. در طراحی این شبکه اندازه و شکل هندسی ذرات بستر متخلخل، ابعاد بستر و مقدار تخلخل مد نظر گرفته شده است و سیستم به دست آمده توسط قوانین اتوماتای سلولی به صورت متغیرهای دوتایی (بولی ) ارائه می شو...
toxicity bioassays are important tools to determine biological effects of chemical agents on species. the questions remained on, what effects have been imposed on each of the different molecular site of cells by chemical exposure and how to find a pattern for chemical toxicity. to address the questions, hepg2 cell lines were exposed to the different concentrations of cisplatin for 24 hours to r...
the effect of epinephrine on triacylglycerol secretion was investigated in isolated rat hepatocytes. the effect appeared at concentrations of more than 1 µm and reached a plateau at 10 µm. epinephrine concentration for half of the maximal bioeffect (ec50) was about 1 µm. epineplrrine at a concentration of 10 µm suppressed triacylglycerol secretion by 33% and increased its cellular content by ap...
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