A voxel in MRI often contains tissue as well as cerebrospinal fluid (CSF). During functional stimulation, volume fractions of these different water compartments may change. To directly image the CSF volume fraction and measure its functional change, we utilized a rotating-frame longitudinal relaxation time (T(1rho))-weighted MRI technique. At 9.4T with a spin-locking frequency of approximately ...

background developing controlled hypercarbia is a known scheme of lowering the suprasellar part of the adenoma in order to assist the surgeon, which acts through raising the icp and therefore the csf pressure. objectives the purpose of this study is to compare the effect of introducing a lumbar drain with that of controlled hypercapnia on the quality of transsphenoidal pituitary tumor resection...

allergic airway inflammation is characterized by elaboration of cytokines and chemokines leading to recruitment of inflammatory leukocytes, predominantly eosinophils, to the airways. granulocyte macrophage colony stimulating factor (gm-csf) is generated in the lungs of human subjects with asthma in response to allergen challenge and is necessary for the development of allergen-induced bronchial...

We investigated the cause of thrombocytosis in 14 patients with tumors producing colony-stimulating factor (CSF). Of the 14 patients, 10 had tumors producing granulocyte-CSF (G-CSF) and 4 had tumors producing granulocyte-macrophage--CSF (GM-CSF). Thrombocytosis of greater than 400 x 10(9)/L was noted in 8 of 10 patients with G-CSF-producing tumors and all 4 patients with GM-CSF-producing tumors...

  Abstract   Background: Over the past 20 years, the minimally invasive endoscopic approach   has gained widespread acceptance. The study was performed to evaluate the   diagnostic method and the success rate of endoscopically diagnosed and treated CSF   rhinorrhea, and also investigations such as leakage site and etiologic factor.   Methods: This retrospective CSF leakage management review of ...

Background: The prevalence of opium addiction among Iranians is considerable. Since endogenous opioid systems may be altered as a consequence of addiction, it is very important to determine the plasma and cerebrospinal fluid (CSF) levels of morphine in Iranian patients addicted to opiates who will undergo surgery.Methods: We obtained CSF and plasma samples from 50 volunteers with an established...

Objective Cerebrospinal fluid (CSF), its secretion, circulation and absorption have been the subject of recent researches. There is a general agreement that the main site of CSF secretion is in the choroids plexus. However, the main absorption site is controversial. Some believe that arachnoid granulations are the principle sites of CSF absorption. In this study, different locations of CSF abs...

A novel analysis for investigating cerebrospinal fluid (CSF) motion is proposed based on the previously presented mathematical framework of Low-b diffusion tensor imaging (DTI). The estimates covariance flow-velocity distribution and coefficient random CSF. It successfully showed different characteristics ROIs in

We assessed the capacity of recombinant human granulocyte-macrophage colony-stimulating factor (GM-CSF) and multilineage (Multi)-CSF to induce release of granulocyte-CSF (G-CSF) by highly purified peripheral blood monocyte (Mo) preparations. Our results reveal that GM-CSF and Multi-CSF, either alone or in a synergistic concert, activate Mo to transcribe G-CSF messenger (m) RNA and release biolo...