superoxide dismutase/karščiavimas

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Overexpression of manganese superoxide dismutase promotes the survival of prostate cancer cells exposed to hyperthermia.

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It has been hypothesized that exposure of cells to hyperthermia results in an increased flux of reactive oxygen species (ROS), primarily superoxide anion radicals, and that increasing antioxidant enzyme levels will result in protection of cells from the toxicity of these ROS. In this study, the

Decreased phospholipid polyunsaturated fatty acid content and superoxide dismutase activity in cardiac muscle of malignant hyperthermia-susceptible swine.

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Homogenates of cardiac left ventricle from malignant hyperthermia-susceptible (MHS) pigs produced a circa 72% more pentane than those from malignant hyperthermia-resistant (MHR) animals, indicating enhanced peroxidation of n-6 fatty acids. This is consistent with the observed circa 70% decrease in

Involvement of superoxide dismutase and glutathione peroxidase in attenuation of radiation-induced hyperthermia by interleukin-1 alpha in rats.

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Pretreatment with recombinant human interleukin-1 alpha (rhIL-1 alpha) 20 h before irradiation attenuates radiation-induced hyperthermia. Experiments were conducted to determine the role of antioxidant enzymes such as superoxide dismutase (SOD) and glutathione peroxidase (GSHPx) in rhIL-1

Cu/Zn-superoxide dismutase, paraoxonase and arylesterase activities and malondialdehyde levels in patients with familial mediterranean fever.

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OBJECTIVE In this study, alterations in antioxidant enzyme activities and malondialdehyde (MDA) levels in the serum samples of patients with familial Mediterranean fever (FMF), an autosomal recessive disease characterized by recurrent episodes of peritonitis, pleuritis, arthritis and fever, were

Superoxide dismutase levels in Chinese hamster ovary cells and ovarian carcinoma cells after hyperthermia or exposure to cycloheximide.

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Superoxide dismutase (SOD) activity in Chinese hamster ovary (CHO) and ovarian carcinoma (OvCa) cells was measured after exposure to hyperthermia and correlated with the development of thermotolerance. The SOD activity of each cell type was largely copper- and zinc-containing SOD activity. Both cell

Suppression of manganese superoxide dismutase augments sensitivity to radiation, hyperthermia and doxorubicin in colon cancer cell lines by inducing apoptosis.

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Increased expression of manganese superoxide dismutase (Mn-SOD), one of the mitochondrial enzymes involved in the redox system, has been shown to diminish the cytotoxic effects of several anti-cancer modalities, including tumour necrosis factor-alpha, ionizing radiation, certain chemotherapeutic

Overexpression of manganese-containing superoxide dismutase confers resistance to the cytotoxicity of tumor necrosis factor alpha and/or hyperthermia.

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Human breast cancer cells (MCF-7) overexpressing manganese-containing superoxide dismutase (MnSOD) by stable or transient transfection were challenged with the cytotoxicity of tumor necrosis factor alpha (TNF-alpha), hyperthermia, and a combination of both. In contrast to the vector control and

Enhancement of cysteamine cytotoxicity by hyperthermia and its modification by catalase and superoxide dismutase in Chinese hamster ovary cells.

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Chinese hamster ovary cells were exposed to the sulfhydryl compound cysteamine at concentrations ranging from 0 to 8 mM for 120 min. No toxicity was found in cells maintained at 5 degrees during treatment; however, at 37 degrees and 44 degrees a paradoxical toxicity was observed, i.e., substantial

[Protective effect of semen Ziziphi spinosae on superoxide dismutase reduction in mice with endotoxin fever].

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An animal model with decreasing SOD was established by fever from intravenous injection of endotoxin. The SOD level was measured by RIA in the animal serum and liver tissues. The results indicated that the SOD level of the model group was obviously lower than that of the normal group (P < 0.05), but

[Superoxide dismutase and lipoperoxidation activity after hyperthermia in tumors].

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Q fever: A neglected disease of camels in Giza and Cairo Provinces, Egypt.

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Background and Aim

Q fever is a zoonotic disease caused by Coxiella burnetii. Cattle, sheep, and goat are the main reservoir of C. burnetii. In Egypt, the epidemiological data about C. burnetii in camels are limited. Therefore, the current study was conducted

Superoxide dismutase--applications and relevance to human diseases.

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Reactive oxygen species, such as superoxide radicals, are thought to underlie the pathogenesis of various diseases. Almost 3 to 10% of the oxygen utilized by tissues is converted to its reactive intermediates, which impair the functioning of cells and tissues. Superoxide dismutase (SOD) catalyzes

Oxyradical-mediated chromosome damage in patients with familial Mediterranean fever.

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Increased chromosome breakage is observed in patients with familial mediterranean fever (FMF). Their plasma contains clastogenic material inducing chromosome damage in cells from healthy persons. It is proposed that increased oxyradical generation by activated polymorphonuclear cells in blood and

Oxidative stress status in familial Mediterranean fever with or without proteinuria.

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Although several studies have indicated oxidative system abnormalities in patients with familial Mediterranean fever, it is still obscure whether proteinuria seen in this disease has an effect on the oxidative system. In the present study, oxidative system changes were investigated in familial

Chronic antioxidant enzyme mimetic treatment differentially modulates hyperthermia-induced liver HSP70 expression with aging.

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One postulated mechanism for the reduction in stress tolerance with aging is a decline in the regulation of stress-responsive genes, such as inducible heat shock protein 72 (HSP70). Increased levels of oxidative stress are also associated with aging, but it is unclear what impact a prooxidant

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