نتایج جستجو برای: ischemic brain damage

تعداد نتایج: 743027  

Ischemic stroke has been classified as a merely thrombotic disease, so the main goal of its treatment is the recanalization of the occluded vasculature. However, despite fast restoration of blood circulation, progressive stroke still develops in many patients, which has led to the concept of reperfusion injury.  The underlying mechanism is only partly known. Though, it is accepted now, tha...

Journal: :The Journal of pharmacology and experimental therapeutics 2004
Akira Moriguchi Toshiaki Aoki Kayoko Mihara Nobuteru Tojo Nobuya Matsuoka Seitaro Mutoh

Platelet activation and subsequent aggregation play a key role in the pathogenesis of ischemic brain damage. Recent studies revealed that enhanced platelet activation is also observed after ischemia, suggesting that secondary thrombus formation might participate in the development of cerebral infarction. The binding of platelet glycoprotein GPIIb/IIIa (integrin alpha(IIb)beta3) to fibrinogen is...

Journal: :Journal of Cerebral Blood Flow & Metabolism 1990

Journal: :iranian journal of basic medical sciences 0
shabnam movassaghi anatomy department, tehran medical branch, islamic azad university, tehran, iran zahra nadia sharifi anatomy department, tehran medical branch, islamic azad university, tehran, iran mansooreh soleimani anatomy department, tehran university of medical sciences, tehran, iran mohammad taghi joghataei anatomy department, tehran university of medical sciences, tehran, iran mehrdad hashemi genetic department, tehran medical branch, islamic azad university, tehran, iran hamed shafaroodi pharmaceutical science branch & pharmaceutical science research centre, islamic azad university, tehran, iran

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...

2012
A. Sreedevi

INTRODUCTION Ischemic hypoxic brain injury often causes irreversible brain damage. The cascade of events leading to neuronal injury and death in ischemia includes the release of cytokines and free radicals, and induction of inflammation, apoptosis, and excitotoxicity. Reperfusion of ischemic areas could exacerbate ischemic brain damage through the generation of reactive oxygen species. The lack...

2010
S. W. Kim J. S. Lee

Strokes are one of the top three leading causes of death in South Korea. Treatment requires a great amount of time, effort and money. Along with a rise in adult diseases due to increased longevity and changes in eating and living habits, the number of stroke incidents that occur each year is also growing(1). Themost common cause of stroke is ischemia, caused by ischemic conditions or trauma, an...

Journal: :physiology and pharmacology 0
abedin vakili department of physiology, faculty of medicine, semnan university of medical sciences, semnan, iran somaye mojarrad department of physiology, faculty of medicine, semnan university of medical sciences, semnan, iran

pervious studies have shown that pentoxifylline (ptx) has beneficial effects in reduction of stroke and brain trauma injuries in experimental animals. however, there is very little and controversial information about the effect of ptx on brain edema in cerebral ischemia. therefore, the aim of this study was to determine the effects of different doses of ptx on brain edema and neurological motor...

2013
Svitlana Garbuzova-Davis Maria C. O. Rodrigues Diana G. Hernandez-Ontiveros Naoki Tajiri Aric Frisina-Deyo Sean M. Boffeli Jerry V. Abraham Mibel Pabon Andrew Wagner Hiroto Ishikawa Kazutaka Shinozuka Edward Haller Paul R. Sanberg Yuji Kaneko Cesario V. Borlongan

BACKGROUND Comprehensive stroke studies reveal diaschisis, a loss of function due to pathological deficits in brain areas remote from initial ischemic lesion. However, blood-brain barrier (BBB) competence in subacute diaschisis is uncertain. The present study investigated subacute diaschisis in a focal ischemic stroke rat model. Specific focuses were BBB integrity and related pathogenic process...

Background: Ischemic stroke is a common cause of adult disability and death worldwide that leads to damage in neuronal networks and neurovascular units and ceasation of brain functions. In this study the effect of iron oxide nanoparticles and magnetic field on neurogenesis after ischemic reperfusion (IR) in rat model was evaluated. Methods: In this experimental study 50 male Wistar rats weighi...

Journal: :AJNR. American journal of neuroradiology 1998
W P Dillon

The management of acute “brain attack” is in evolution. A proliferation of new treatment approaches directed at lysing thrombus, normalizing cerebral perfusion, and reversing or minimizing neuronal ischemic damage are recently approved or currently under investigation. Preservation of “tissue at risk” within the ischemic penumbra is the goal of many of these newer therapies. The ischemic penumb...

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