TNFR1 Upregulation Mediates Tolerance after Brain Ischemic Preconditioning
نویسندگان
چکیده
منابع مشابه
SirT1 mediates hyperbaric oxygen preconditioning-induced ischemic tolerance in rat brain
Our previous studies have shown that hyperbaric oxygen preconditioning (HBO-PC) induces tolerance to cerebral ischemia/reperfusion (I/R). This study aimed to investigate whether SirT1, a class III histone deacetylase, is involved in neuroprotection elicited by HBO-PC in animal and cell culture models of ischemia. Rats were subjected to middle cerebral artery occlusion for 120 minutes after HBO-...
متن کاملBrain tolerance and preconditioning.
In this review article the authors describe a phenomenon of "brain tolerance" which represents transient resistance of brain tissue to a lethal insult established by preconditioning with a mild insult of short duration. Tolerance evoked by brief ischemia resembles transient ischemic attack(s) (TIA) often preceding full-blown ischemic stroke in a clinical setting. A series of recent studies have...
متن کاملHypoxic Preconditioning-Induced Cerebral Ischemic Tolerance
Background and Purpose—The importance of bioactive lipid signaling under physiological and pathophysiological conditions is progressively becoming recognized. The disparate distribution of sphingosine kinase (SphK) isoform activity in normal and ischemic brain, particularly the large excess of SphK2 in cerebral microvascular endothelial cells, suggests potentially unique celland region-specific...
متن کاملIschemic preconditioning in the brain.
physiologic responses to its environment is important for survival. Certain organs respond to sub-lethal exposures to hypoxia or ischemia by a variety of physiologic mechanisms. Some of these mechanisms induce a greater tolerance to a subsequent exposure to hypoxia or ischemia. This phenomenon is described as ischemic or hypoxic preconditioning.1,2 It is nature’s “what doesn’t kill you makes yo...
متن کاملEffects of preconditioning with intermittent normobaric hyperoxia on TNFR1 and TNFR2 expression in the rat brain
Introduction: Recent studies have shown that intermittent normobaric hyperoxia (HO) protects the rat brain from ischemia reperfusion injury. However, the exact mechanism of this kind of protection in vivo is not known. In this study, the effect of HO on expression of TNFR1 and TNFR2 in a stroke model was investigated. Methods: In this experimental study, rats were divided into 4 groups: no...
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ژورنال
عنوان ژورنال: Journal of Cerebral Blood Flow & Metabolism
سال: 2005
ISSN: 0271-678X,1559-7016
DOI: 10.1038/sj.jcbfm.9600019