نتایج جستجو برای: brain ischemia tolerance
تعداد نتایج: 663523 فیلتر نتایج به سال:
Introduction: There are several different molecular pathways in tissue damage by Ischemic Brain Injury. The use of antioxidants and free radical scavengers are a matter of attention by some researchers. Crocus sativus (saffron) is used previously for protective effects in ischemia state by some researchers. To assess pathologic aspects of neuroprotection of saffron in some susceptible brain are...
BACKGROUND AND PURPOSE Ischemic tolerance has been extensively studied in experimental models of heart and brain ischemia. While there is some clinical evidence of ischemic tolerance in the heart, it is not known whether the same is true for the human brain. METHODS We conducted a retrospective case-control study in 148 stroke patients with and without antecedent TIA. RESULTS Despite no sig...
objective(s) the brief interruption of cerebral blood flow causes permanent brain damage and behavioral dysfunction. the hippocampus is highly vulnerable to ischemic insults, particularly the ca1 pyramidal cell layer. there is no effective pharmacological strategy for improving brain tissue damage induced by cerebral ischemia. previous studies reported that pentoxifylline (ptx) has a neuroprote...
Background and Objectives: In the early stages of brain ischemia, the production of free radicals increases. Salvia officinalis is a rich source of antioxidant compounds. Therefore, in this study the effects of hydroalcoholic extract of Salvia officinalis on blood -brain barrier permeability and neurological deficits have been studied. Materials and Methods: In this experimental study 35 m...
The transcription factor nuclear factor-kappaB (NFkappaB) is an ubiquitously expressed inducible regulator of a broad range of genes and plays a pivotal role in cell death and survival pathways. Three models of brain tolerance (ischemic, epileptic, and polyunsaturated fatty acid-induced preconditioning), known to confer resistance to neurons against ischemia or status epilepticus, were used to ...
the prevention of bbb breakdown and the subsequent vasogenic edema are important parts of the medical management of ischemic stroke. the purpose of this study was to investigate the ischemic tolerance effect of rosmarinus officinalis leaf hydro-alcoholic extract (rhe).five groups of animals were designed: sham (underwent surgery without mcao) and mcao groups, the mcao groups were pretreated ora...
Peroxisome proliferator-activated receptor alpha (PPAR-α), which belongs to the nuclear receptor family of ligand-activated transcription factors, was first described as gene regulators for metabolic pathways including lipid metabolism, insulin sensitivity, and glucose homeostasis. Were raised. This nuclear receptor is widely expressed in various tissues, providing a wide range of effects to st...
ischemia-reperfusion injury is the tissue damage happened when blood supply returns to the tissue after a period of ischemia or shortage of oxygen. this brain injury initiates an inflammatory response involving the expression of adhesion molecules and cytokines. the aim of this study is investigating the effect of hydroalcoholic extract of cyperus rotundus l. on the expression of the bcl-x1 an...
Aim: Oxidative stress plays a crucial role in the pathophysiology of ischemic stroke. Since water-solublefullerene derivatives act as the potent scavenger of oxygen free radicals in biological systems, we aimedto investigate the possible protective effects of fullerol nanoparticles on brain infarction and edema intransient model of focal cerebral ischemia in rat.Materials & Methods: Experiment ...
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