brain tumors in elderly are increasing as the number of people, who comprise the older population, does.about half of the patients with brain tumors appear to be over 60 years of age.in this review article, glioblastoma multiform, as the most common malignant tumor of the central nervous system in elderly is discussed in details of definition, prognosis, diagnosis, treatment and differential di...

a bstract background: in recent years, the lack of organ for transplantation has resulted in health planners and authorities in all countries, including iran, paying serious attention to the issue. despite the above-mentioned fact, families with a member affected by brain death are not interested in organ donation. objective: this study is aimed at making an investigation into the decision-maki...

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minor trauma to the head is common in childhood and does not require any medical or surgical treatment. nevertheless, head injury in infancy and childhood is the single most common cause of death and permanent disability. measurable deficits occur even after mild to moderate head injury but are markedly greater after severe injury. they include impaired cognition, motor impairments, disruption ...

introduction: breast cancer is the second most common cause of brain metastasis. although patient prognosis is poor, isolated brain metastasis occasionally can be an option for treatment with curative intent in breast cancer patients. case presentation: we report a patient with invasive ductal carcinoma of the breast who developed an isolated right frontal lobe metastasis within 5 months of fin...

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 in...

Background and aims: There are different causes for brain death including head trauma, cerebrovascular accidents and intracranial space-occupying lesions. The present study was aimed to determine the causes of brain death in Chahar Mahal and Bakhtiari province due to high turnover of trauma in this area during 2003 to 2013...

the short and long term effects of chromium toxicity on brain catecholamines and acetylcholinesterase levels were investigated. rats were injected daily with varying amounts of chromium. the short term (2 h) administration of chromium (8 mmol/kg) reduced catecholamines level of cerebellum, mid-brain and brain-cortex by 22.8, 19.4 and 21.2% respectively. acetylcholinesterase activity was also re...

the brain – computer interface (bci) provides a communicational channel between human and machine. most of these systems are based on brain activities. brain computer-interfacing is a methodology that provides a way for communication with the outside environment using the brain thoughts. the success of this methodology depends on the selection of methods to process the brain signals in each pha...