نتایج جستجو برای: cervicothoracic junction
تعداد نتایج: 51552 فیلتر نتایج به سال:
مقدمه: gj)gap junction) مجرایی را برای مبادله عوامل سیگنالینگ (ca++, k+) ، پیامبرهای ثانویه camp, ip3)) و متابولیت های کوچک بین سلول های مجاور فراهم می نماید. این کانالها از 6 زیر واحد connexin ساخته شده که در نخاع و سایر بخش های سیستم عصبی(هیپوکامپ، نئوکورتکس، هسته زیتون تحتانی، مخچه ) شناسایی شده اند. در این مطالعه این فرض مورد بررسی قرار می گیرد که gj ها در انتقال سیگنالهای درد در مراکز نخاع...
OBJECTIVE The cervicothoracic junction (CTJ) is a biomechanically and anatomically complex region that has traditionally posed problems for surgical access. In this retrospective study, we describe our clinical experiences of the treatment of metastatic spinal tumors at the CTJ and the results. METHODS From June 2006 to December 2011, 23 patients who underwent surgery for spinal tumors involv...
Introduction:Neurogenic mediastinal tumors comprise a wide range of benign and malignant diseases. A group of these tumors, located at thoracic apex, sometimes spread to cervical spaces causing numerous surgical difficulties. In thoracotomy approaches, due to proximity of the tumors to major blood vessels, complete removal of these tumors from cervical spaces is impossible or may cause intraope...
Several types of intraspinal cyst develop within the spinal canal from the craniovertebral junction to the sacrum. These lesions occur in both children and adults. Arachnoid cysts are one of them and are more frequent in the paediatric population, being a relatively uncommon lesion in adults. The arachnoid cyst may be located intradurally or extradurally. The intradural type may be congenital o...
it has been reported that cither lithium or verapamil can potentiate the neuromuscular blocking activity of certain neuromuscular blockers. in the present investigation, possible interaction of verapamil with lithium has been described. the dose ■ response effects of verapamil and lithium on diaphragmatic contractility were assessed in vitro. mechanical responses of the muscle to indirect (nerv...
BACKGROUND AND PURPOSE CM-AVM is a recently recognized autosomal dominant disorder associated with mutations in RASA1. Arteriovenous lesions have been reported in the brain, limbs, and the face in 18.5% of patients. We report a novel association between RASA1 mutations and spinal arteriovenous anomalies. MATERIALS AND METHODS In a collaborative study, 5 index patients (2 females, 3 males) wit...
Ependymomas represent 4% of all primary central nervous system neoplasms in adults, with 30% occurring in the spinal cord. We describe a young man with neurological deficits following a motor vehicle accident who was found to have an intramedullary cervicothoracic ependymoma.
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