نتایج جستجو برای: hypoxic brain injury

تعداد نتایج: 752963  

Journal: :iranian journal of neuro surgery 0
sarah ramezani ph.d candidate, neuroscience department, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iran. zoheir reihanian shahrokh yousefzadeh-chabok mehdie sarraf-razavi

background & aim: using pharmaceutical agents in treatment of aphasia has caught the attention of many neurologists and neuroscientists. this short review study has sought the role of pharmacotherapy in treatment of aphasia, a linguistic impairment after acquired brain lesions. the pharmacological principles and mechanisms related to the effects of drugs used in aphasia rehabilitation are point...

Journal: :مجله علوم اعصاب شفای خاتم 0
s kovac university hospital münster, münster, germany s williams university college london, london, uk am domijan university college london, london, uk mc walker university college london, london, uk ay abramov university college london, london, uk

seizure activity has been proposed to result in the generation of reactive oxygen species (ros), which then contribute to seizure-induced neuronal damage and eventually cell death. although the mechanisms of seizure-induced ros generation are unclear, mitochondria and cellular calcium overload have been proposed to have a crucial role. we aim to determine the sources of seizure-induced ros and ...

Journal: :مجله علوم اعصاب شفای خاتم 0
nafise bahrami a. islamic azad university, mashhad branch, mashhad, iran b. member of mashhad neuroscience research group of islamic azad university, mashhad branch, mashhad, iran zahra ghane a. islamic azad university, mashhad branch, mashhad, iran b. member of mashhad neuroscience research group of islamic azad university, mashhad branch, mashhad, iran hasan abbassian neuroscience department, mashhad university of medical sciences, mashhad, iran

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...

2011
Deepti Navaratna Shu-zhen Guo Kazhuhide Hayakawa Xiaoying Wang Chiara Gerhardinger Eng H. Lo

OBJECTIVE Diabetes is an independent risk factor for stroke. However, the underlying mechanism of how diabetes confers that this risk is not fully understood. We hypothesize that secretion of neurotrophic factors by the cerebral endothelium, such as brain-derived neurotrophic factor (BDNF), is suppressed in diabetes. Consequently, such accrued neuroprotective deficits make neurons more vulnerab...

Journal: :AJNR. American journal of neuroradiology 1989
C R Bird B P Drayer F H Gilles

A small percentage of patients who suffer a global cerebral hypoxic/ischemic event develop reversal of the normal density relationships of gray and white matter on CT. CT and pathologic findings in the three cases presented indicate that this phenomenon appears to result from distension of deep medullary veins secondary to partial obstruction of venous outflow from elevated intracranial pressur...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2001
F J Northington D M Ferriero D L Flock L J Martin

Brain injury in newborns can cause deficits in motor and sensory function. In most models of neonatal brain injury, thalamic damage often occurs. Using the Rice-Vannucci model of neonatal hypoxic-ischemic brain injury, we have shown that neuronal degeneration in somatosensory thalamus is delayed in onset ( approximately 24 hr) compared with cortical and striatal injury and exhibits prominent st...

2017
Sombat Muengtaweepongsa Winchana Srivilaithon

Targeted temperature management (TTM) shows the most promising neuroprotective therapy against hypoxic/ischemic encephalopathy (HIE). In addition, TTM is also useful for treatment of elevated intracranial pressure (ICP). HIE and elevated ICP are common catastrophic conditions in patients admitted in Neurologic intensive care unit (ICU). The most common cause of HIE is cardiac arrest. Randomized...

ژورنال: Iranian Biomedical Journal 2015
Abbasloo, Elham, Dehghan, Fatemeh, Khaksari, Mohammad, Shahrokhi, Nader,

Background: In previous studies, the neuroprotective effect of 17&beta-estradiol in diffuse traumatic brain injury has been shown. This study used ICI 182,780, a non-selective estrogen receptor antagonist, to test the hypothesis that the neuroprotective effect of 17&beta-estradiol in traumatic brain injury is mediated by the estrogen receptors. Methods: The ovariectomized rats were divided into...

Journal: :Stroke 1994
C Palmer R L Roberts C Bero

BACKGROUND AND PURPOSE Iron catalyzes the formation of damaging reactive species during cerebral reperfusion. Brain iron concentration is highest at birth, so the brain of the asphyxiated newborn may be at increased risk of iron-dependent injury. We investigated whether the ferric iron chelator deferoxamine could reduce hypoxic-ischemic brain injury in neonatal rats. Because deferoxamine has co...

2013
Zhichun Feng Jing Liu Rong Ju

Hyperbaric oxygen therapy for the treatment of neonatal hypoxic-ischemic brain damage has been used clinically for many years, but its effectiveness remains controversial. In addition, the mechanism of this potential neuroprotective effect remains unclear. This study aimed to investigate the influence of hyperbaric oxygen on the proliferation of neural stem cells in the subventricular zone of n...

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