نتایج جستجو برای: ionizing irradiation
تعداد نتایج: 76474 فیلتر نتایج به سال:
Observations of enhanced growth of melanized fungi under low-dose ionizing radiation in the laboratory and in the damaged Chernobyl nuclear reactor suggest they have adapted the ability to survive or even benefit from exposure to ionizing radiation. However, the cellular and molecular mechanism of fungal responses to such radiation remains poorly understood. Using the black yeast Wangiella derm...
Radiotherapy is a key treatment option for breast cancer, yet the molecular responses of normal human breast epithelial cells to ionizing radiation are unclear. A murine subcutaneous xenograft model was developed in which nonneoplastic human breast tissue was maintained with the preservation of normal tissue architecture, allowing us to study for the first time the radiation response of normal ...
apoptosis, a physiologic mechanism to eliminate unwanted cells, is also induced by ionizing irradiation, through production of free radicals. it has been demonstrated that antioxidants such as vitamin e are able to protect cells from damage caused by free radicals. taken together we found it reasonable to make an attempt to evaluate the protective effect of vitamin e against apoptosis. the irra...
Abstract A bibliometric approach allowed us to study the global research trend on impact of ionizing irradiations polymers from 1975 2019. The investigation revealed 1,015 publications with growing interest since 1990. is split into three main categories: polymer science, nuclear science technology, and chemistry physical. studied in this are gamma, electron beam, X-ray irradiations. under gamm...
Neurocognitive impairment is a serious adverse effect of radiation-based therapy [1]. It is well known that ionizing radiations induce oxidative stress on target tissues, mainly through the generation of reactive oxygen species (ROS) [2,3]. Spatial learning and memory are compromised after ionizing irradiation in rats using the Morris water maze test, and antioxidant-based diets are able to imp...
Ionizing radiation can induce cellular oxidative stress through the generation of reactive oxygen species, resulting in cell damage and cell death. The aim of this study was to determine whether the antioxidant effects of the flavonoid fisetin (3,7,3',4'-tetrahydroxyflavone) included the radioprotection of cells exposed to γ-irradiation. Fisetin reduced the levels of intracellular reactive oxyg...
In this study, aluminum oxide dosimeter doped with carbon impurities, with chemical formula of α-Al2O3: C and commercial name of TLD-500 was used. Optical effects of ionizing radiation and UV light on TLD-500 discs and powder as well as the effect of fluorescent lamp on the crystal were investigated. Results of irradiation with Cobalt-60 source which were repeated for at least three dosim...
Introduction: Coronary angiography is a Diagnostic-Therapeutic method involving ionizing radiation. This method causes to DNA damage with form double stranded breaks which is followed by the phosphorylation of the histone, H2AX. H2AX is a key factor in the repair process of damaged DNA which will accumulate to damage sites. In human cells, H2AX constitutes about 10% of the H2A ...
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