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superoxide dismutase/ödem
Länken sparas på Urklipp
Sida 1 från 990 resultat
Reduction of copper, zinc-superoxide dismutase in knockout mice does not affect edema or infarction volumes and the early release of mitochondrial cytochrome c after permanent focal cerebral ischemia.
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Copper,zinc-superoxide dismutase (SOD1) was shown to be highly protective against ischemia/reperfusion injury in the brain. We have recently reported that SOD1 prevents the release of mitochondrial cytochrome c and subsequent apoptosis after ischemia/reperfusion in mice. To investigate its dose
Control of vasogenic edema in a brain tumor model: comparison between dexamethasone and superoxide dismutase.
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OBJECTIVE
The production of prostaglandin (PG) within brain tumors probably generates excessive amounts of oxygen free radicals that may disrupt microvessel permeability within the tumor and in the adjacent brain. We evaluated the effect of systemic therapy with recombinant human
Parenteral superoxide dismutase plus catalase diminishes pancreatic edema in sodium taurocholate-induced pancreatitis in the rat.
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Scavengers of toxic oxygen reduction products have been reported to reduce the inflammatory reaction in some models of pancreatitis. In a blinded study, the effect of parenteral pretreatment with superoxide dismutase plus catalase was compared with placebo on pancreatitis induced in rats by infusion
Cold-induced brain edema and infarction are reduced in transgenic mice overexpressing CuZn-superoxide dismutase.
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It has been proposed that oxygen-derived radicals, superoxide in particular, are involved in the alteration of blood-brain barrier permeability and the pathogenesis of brain edema following trauma, ischemia, and reperfusion injury. Using transgenic mice that overexpress the human gene for
Protective effects of liposome-entrapped superoxide dismutase on posttraumatic brain edema.
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Oxygen-derived free radicals and membrane lipid peroxidation have been postulated to be involved in brain edema and cell death, secondary to ischemia and traumatic injury. Using a model of brain edema induced by cold-induced injury, we have demonstrated an early elevation of superoxide radicals
Effects of catalase, peroxidase, superoxide dismutase and 10 scavengers of oxygen radicals in carrageenin edema and in adjuvant arthritis of rats.
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Catalase, peroxidase and superoxide dismutase were found to inhibit significantly carrageenin edema and the primary phase of adjuvant arthritis in rats after i.v. injection. Heat-inactivated enzymes were as effective as the native enzymes. None of 10 scavengers of oxygen radicals inhibited the
Endotoxin treatment protects rats against ozone-induced lung edema: with evidence for the role of manganese superoxide dismutase.
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Ozone is a strong oxidizing agent that can cause lung damage and edema. There is evidence that it does so by causing peroxidation of membrane lipids. However, the elevation in lung activity of copper, zinc superoxide dismutase (Cu, ZnSOD), and manganese superoxide dismutase (MnSOD) during exposure
Cross-linked polyhemoglobin-superoxide dismutase-catalase supplies oxygen without causing blood-brain barrier disruption or brain edema in a rat model of transient global brain ischemia-reperfusion.
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In strokes, myocardial infarctions, severe sustained hemorrhagic shock, and donor organs, inadequate blood supply results in lack of oxygen to the tissue (ischemia). If ischemia is sustained, reperfusion with the needed oxygen can result in tissue injury (ischemia-reperfusion injury) due to
The effects of paraquat and superoxide dismutase on pulmonary vascular permeability and edema in mice.
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Intraperitoneal administration of 50 mg/kg paraquat dichloride to mice significantly increased pulmonary vascular permeability at 24 and 48 hr, as measured by 125I-albumin content of alveolar lavage. Lung edema, measured by lung weight as percent body weight, was significantly increased 48 hr after
Reduction of superoxide dismutase activity correlates with visualization of edema by T2-weighted MR imaging in focal ischemic rat brain.
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This study investigated the correlation between in vivo serial T2-weighted magnetic resonance (MR) imaging and changes in superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities, and water, sodium ion (Na+), and potassium ion (K+) contents measured in vitro using rat brain
Inhibition of carrageenin-induced paw edema by a superoxide dismutase derivative that circulates bound to albumin.
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Although the possible involvement of superoxide radical and its metabolite(s) in the pathogenesis of various types of edema have been suggested, direct evidence supporting this concept is lacking. Since intravenously administered Cu2+Zn2(+)-type superoxide dismutase (SOD) rapidly disappeared from
Superoxide dismutase reduces permeability and edema induced by hypertension in rats.
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These studies determined whether superoxide dismutase (SOD), an oxygen free-radical scavenger, affects brain and lung vascular protein extravasation and water content after acute hypertension. Hypertensive vascular injury was induced in rats by bolus injection of norepinephrine. Vascular
Effect of a superoxide dismutase derivative on cold-induced brain edema.
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Although the involvement of reactive oxygen species has been suggested in the pathogenesis of brain edema, direct evidence supporting this concept is lacking. To elucidate a critical role of oxygen radicals, effect of a superoxide dismutase (SOD) derivative that circulated bound to albumin with a
Attenuation of decompressive hypoperfusion and cerebral edema by superoxide dismutase.
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This study tested the hypothesis that ischemia-reperfusion injury initiated by the superoxide anion radical is a major component of postdecompression hypoperfusion and cerebral edema, and could be attenuated by superoxide dismutase (SOD). A supratentorial extradural balloon was placed in 20 fasting,
Cold-induced brain edema in mice. Involvement of extracellular superoxide dismutase and nitric oxide.
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The role of extracellular superoxide in the pathogenesis of vasogenic edema was studied using transgenic mice expressing a 5-fold increase in extracellular superoxide dismutase (EC-SOD) activity in their brains. Increased EC-SOD expression offered significant protection against edema development
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