نتایج جستجو برای: high grade gliomas

تعداد نتایج: 2178988  

2017
Liang Jiang Chao-Yong Xiao Quan Xu Jun Sun Huiyou Chen Yu-Chen Chen Xindao Yin

Purpose: It is critical and difficult to accurately discriminate between high- and low-grade gliomas preoperatively. This study aimed to ascertain the role of several scalar measures in distinguishing high-grade from low-grade gliomas, especially the axial diffusivity (AD), radial diffusivity (RD), planar tensor (Cp), spherical tensor (Cs), and linear tensor (Cl) derived from diffusion tensor i...

2011
Weidong Liu Guohua Lv Yawei Li Lei li Bing Wang

BACKGROUND Malignant gliomas are the most common in central nervous system cancer. Genome-wide association study identifies that CDKN2A was a susceptibility loci for glioma. The CDKN2A/cyclin-dependent kinase 4, 6/Retinoblastoma protein (Rb) pathway is thought to play a crucial role in malignant gliomas pathogenesis. We have investigated the expression of CDKN2A for potential correlations with ...

Journal: :Neuro-oncology 2012
Agustí Alentorn Yannick Marie Catherine Carpentier Blandine Boisselier Marine Giry Marianne Labussière Karima Mokhtari Khê Hoang-Xuan Marc Sanson Jean-Yves Delattre Ahmed Idbaih

PDGFRA is a critical gene in glioma biology. Similar to EGFR, PDGFRA has been shown to be overexpressed, amplified, mutated, or truncated in gliomas, particularly glioblastomas. In addition, PDGFRA has been recently shown to be rearranged in glioblastoma. However, the frequency, cooccurrence, and clinical value of PDGFRA abnormalities in diffuse gliomas remain unclear. We investigated PDGFRA ab...

2014
Rui Jiang Fei-Zhou Du Ci He Ming Gu Zhen-Wu Ke Jian-Hao Li

PURPOSE Differentiation of high-grade gliomas and solitary brain metastases is an important clinical issue because the treatment strategies differ greatly. Our study aimed to investigate the potential value of diffusion tensor imaging (DTI) in differentiating high-grade gliomas from brain metastases using a meta-analytic approach. MATERIALS AND METHODS We searched Pubmed, Embase and the Cochr...

Journal: :Asian Pacific journal of cancer prevention : APJCP 2012
Yong Luo Fan Wang Lv-An Chen Xiao-Wei Chen Zhi-Jun Chen Ping-Fei Liu Fen-Fen li Cai-Yan Li Wu Liang

Growing evidence shows that deregulation of the circadian clock plays an important role in the development of malignant tumors, including gliomas. However, the molecular mechanisms of gene chnages controlling circadian rhythm in glioma cells have not been explored. Using real time polymerase chain reaction and immunohistochemistry techniques, we examined the expression of two important clock ge...

Journal: :Genetics and molecular research : GMR 2016
B Yang X Q Hao X W Zeng T L Ji S Pan Y G Feng

The chromosome 1p/19q deletion has been reported as a good prognosis marker for gliomas. However, the detection of 1p/19q status alone in glioma patients is not sufficient. The identification of a combination of molecular factors could effectively enhance the prediction accuracy. Thus far, the potential correlation between the 1p/19q status and vascular endothelial growth factor (VEGF) expressi...

Journal: :Beni-Suef University Journal of Basic and Applied Sciences 2022

Abstract Background Gliomas are the commonest primary adults’ brain tumors. Hypoxia performs an essential role in gliomas’ initiation as well progression through hypoxia inducible factor (HIF-1α) activation, which could serve a promising target treatment of gliomas. Our study aimed to evaluate types and grades glioma cases detect isocitrate dehydrogenase 1 (IDH1) mutation status expression HIF-...

2016
Mohammed Jaber Johannes Wölfer Christian Ewelt Markus Holling Martin Hasselblatt Thomas Niederstadt Tarek Zoubi Matthias Weckesser Walter Stummer

BACKGROUND Approximately 20% of grade II and most grade III gliomas fluoresce after 5-aminolevulinic acid (5-ALA) application. Conversely, approximately 30% of nonenhancing gliomas are actually high grade. OBJECTIVE The aim of this study was to identify preoperative factors (ie, age, enhancement, 18F-fluoroethyl tyrosine positron emission tomography [F-FET PET] uptake ratios) for predicting f...

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