Sahika Liva Cengiz

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OBJECTIVES To evaluate whether polymorphisms in the deoxy-ribonucleic acid (DNA) repair genes XRCC1 and XPD, have efficacy in the development of brain tumors. METHODS This is a case-population based study, including 135 cases of brain tumors, and 87 population based age- and gender-matched healthy controls. We examined the role of XRCC1 Arg 399Gln gene(More)
BACKGROUND The aim of this study was to investigate the ability of levosimendan to prevent cerebral vasospasm in a rabbit model of subarachnoid haemorrhage (SAH). ANIMALS AND METHODS Eighteen New Zealand white rabbits were allocated into three groups randomly. SAH was induced by injecting autologous blood into the cisterna magna. (Group 1 = control:sham(More)
OBJECTIVES The aim of this study was to compare the effects of mannitol and melatonin on brain edema secondary to trauma using magnetic resonance imaging (MRI). METHODS A mild traumatic brain injury with the Feeney method was performed upon twelve New Zealand rabbits. Three hours after the trauma was inflicted, MRI images were obtained, then the subjects(More)
A potential hazard in midline posterior fossa craniectomy may be the injury of vertebral artery. That's why vertebral artery evaluation prior to surgery may prevent dangerous complications. Advancements in multidetector computed tomography (MDCT) have provided detailed demonstration of the vertebral artery at the craniocervical junction and its(More)
Glioblastoma multiforme (GBM) is the most common and the most malignant primary intracranial tumor in adults and it is usually occurs between the age of 40 and 60 years. It is local invasive and recurrent tumor and hence that has a poor prognosis. However, recent advances in tumor surgery, irradiation and chemotherapeutic agent permit long survival and(More)
AIM To compare the beneficial effects of cisternal blood clot evacuation with or without microsurgical fenestration of the lamina terminalis (LT) on symptomatic vasospasm during the course of aneurysmal subarachnoid hemorrhage. MATERIAL AND METHODS This was a clinical, retrospective study that included 72 patients with aneurysmal subarachnoid hemorrhage(More)
AIM Previous studies have shown that carvedilol has a neuroprotective effect in animal models of brain ischemia and brain oxidative damage in vitro. This study was perfomed to investigate the effect of carvedilol on the secondary damage in experimental spinal cord injury (SCI). MATERIAL AND METHODS Twenty-four Wistar albino rats were divided into three(More)
OBJECTIVES The aim of this study was to determine whether intravenous immunoglobulin (IVIG) prevents cerebral vasospasm in rabbits with induced subarachnoid haemorrhage (SAH). The effect of IVIG on apoptosis in the endothelial cells of the basilar artery was also evaluated. METHODS Eighteen New Zealand white rabbits were allocated randomly into three(More)
The horizontal third segment (V3h) of the vertebral artery (VA) in 7 cadavers (14 sides) was dissected and the anatomical measurements recorded. Measurements from 24 healthy individuals (48 sides) were taken for comparison using multislice CT scanning. The distance between the medial tip of the VA V3h and the line passing through the mid point of the(More)
The aim of the present study was to investigate the use of a radial artery graft (RAG) for bypass of the proximal superficial temporal artery (STA) to proximal posterior cerebral artery (PCA) by posterior oblique transzygomatic subtemporal approach as an alternative to the external carotid artery (ECA) to PCA anastomosis. We conducted an anatomical and(More)