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Low grade glioma

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https://www.readbyqxmd.com/read/28544746/clinical-outcomes-following-proton-therapy-for-children-with-central-nervous-system-tumors-referred-overseas
#1
Daniel J Indelicato, Julie A Bradley, Eric S Sandler, Philipp R Aldana, Amy Sapp, Jennifer E Gains, Adrian Crellin, Ronny L Rotondo
BACKGROUND: International, multidisciplinary care of children with central nervous system (CNS) tumors presents unique challenges. The aim of this study is to report patient outcomes of U.K. children referred for proton therapy to a North American facility. METHODS: From 2008 to 2016, 166 U.K. children with approved CNS tumors were treated with proton therapy at a single academic medical center in the United States. Median age was 7 years (range, 1-19). Median follow-up was 2...
May 24, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28540668/fatigue-in-patients-with-low-grade-glioma-systematic-evaluation-of-assessment-and-prevalence
#2
REVIEW
Ellen M P van Coevorden-van Loon, Marijke B Coomans, Majanka H Heijenbrok-Kal, Gerard M Ribbers, Martin J van den Bent
Fatigue is the most prevalent and disabling symptom in cancer patients. Yet, scientific literature on this topic is scarce and reports disparate results. This study systematically reviews how fatigue is assessed in patients with low-grade glioma and evaluates its prevalence in LGG patients. A systematic literature search was performed in PubMed, Embase and PsychINFO for articles reporting on fatigue in patients with LGG. Two reviewers independently extracted data from selected articles. Inclusion criteria were: (1) patients with suspected or confirmed LGG; (2) fatigue was assessed as primary or secondary outcome measure; (3) age≥ 18 years; (4) full-length article written in English or Dutch...
May 24, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28540666/evaluation-of-mitochondrial-respiratory-function-in-highly-glycolytic-glioma-cells-reveals-low-adp-phosphorylation-in-relation-to-oxidative-capacity
#3
Erika Rodrigues-Silva, Edilene S Siqueira-Santos, Juliana S Ruas, Raffaela S Ignarro, Tiago R Figueira, Fábio Rogério, Roger F Castilho
High-grade gliomas are aggressive and intensely glycolytic tumors. In the present study, we evaluated the mitochondrial respiratory function of glioma cells (T98G and U-87MG) and fresh human glioblastoma (GBM) tissue. To this end, measurements of oxygen consumption rate (OCR) were performed under various experimental conditions. The OCR of T98G and U-87MG cells was well coupled to ADP phosphorylation based on the ratio of ATP produced per oxygen consumed of ~2.5. In agreement, the basal OCR of GBM tissue was also partially associated with ADP phosphorylation...
May 24, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28540130/corpora-amylacea-mimicking-low-grade-glioma-and-manifesting-as-a-seizure-case-report
#4
Seung J Lee, Minsu Kim, Carlito Lagman, Timothy T Bui, William H Yong, Isaac Yang
BACKGROUND: Corpora amylacea (CA) are accumulations of polyglucosan bodies typically found in astrocytic foot processes, and rarely, can mimic neoplasm. CA accumulation has also been associated with seizure disorders. We report the first case of a histologically confirmed intracranial, intraparenchymal CA lesion mimicking a low-grade glioma and manifesting as a seizure. CASE DESCRIPTION: A 43-year-old man presented after a general tonic-clonic (GTC) seizure. Brain magnetic resonance imaging (MRI) revealed a small lesion in the right mesial temporal lobe with radiologic features of a low-grade glioma...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28535635/-evaluation-of-ct-guided-iodine-125-seeds-brachytherapy-for-intracranial-malignant-tumors-under-control-of-target-and-dose
#5
X K Hu, L J Peng, S F Liu, K X Zhang, Y S Liu, F J Zhang, X D Zhu, X Z Gong, Y Gao, D F Wang, Z X Tina, Zixiang Li
Objective: To assess the efficacy and safety of CT-guided iodine-125 seeds in the treatment of intracranial malignancies under control of target and dose. Methods: From November 2003 to May 2016, with the clinical data of 412 operations on 310 patients in 12 hospitals in the past 14 years, this study analyzed the method of CT guided iodine-125 particles brachytherapy in the treatment of intracranial malignant tumors and evaluated the efficacy and complications. Stratification analysis of intracranial malignant tumors was performed...
May 23, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28535583/molecular-testing-of-brain-tumor
#6
REVIEW
Sung-Hye Park, Jaekyung Won, Seong-Ik Kim, Yujin Lee, Chul-Kee Park, Seung-Ki Kim, Seung-Hong Choi
The World Health Organization (WHO) classification of central nervous system (CNS) tumors was revised in 2016 with a basis on the integrated diagnosis of molecular genetics. We herein provide the guidelines for using molecular genetic tests in routine pathological practice for an accurate diagnosis and appropriate management. While astrocytomas and IDH-mutant (secondary) glioblastomas are characterized by the mutational status of IDH, TP53 , and ATRX , oligodendrogliomas have a 1p/19q codeletion and mutations in IDH, CIC , FUBP1 , and the promoter region of telomerase reverse transcriptase ( TERTp )...
May 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28534372/serum-expression-level-of-mir-504-can-differentiate-between-glioblastoma-multiforme-and-solitary-brain-metastasis-of-non-small-cell-lung-carcinoma
#7
Zheng Jin, Ri-Hua Jin, Chi Ma, Hai-Song Li, Hai-Yang Xu
PURPOSE: Gliomas are the most common primary intracranial tumors of the central nervous system (CNS), accounting for about one third of all brain tumors. Glioblastoma multiforme (GBM) is the aggressive grade IV glioma with survival as low as 2-5% in the second year post-diagnosis, hence necessitating efficient diagnostic markers. More than 50% of the non-small cell lung cancer (NSCLC) brain metastases are solitary lesions, often difficult to differentiate from gliomas by conventional imaging diagnostics...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28531337/correlation-of-immune-phenotype-with-idh-mutation-in-diffuse-glioma
#8
Anna Sophie Berghoff, Barbara Kiesel, Georg Widhalm, Dorothee Wilhelm, Orsolya Rajky, Sebastian Kurscheid, Philip Kresl, Adelheid Wöhrer, Christine Marosi, Monika E Hegi, Matthias Preusser
Background: Tumor infiltrating lymphocytes (TILs) and programmed death ligand 1 (PD-L1) are targets of immune checkpoint inhibitors. Methods: Forty-three World Health Organization (WHO) grade II/III gliomas (39 IDH-mutant [mut], 4 IDH-wildtype [wt]) and 14 IDH-mut glioblastomas (GBM) were analyzed for TIL (CD3+; PD1+) infiltration and PD-L1 expression. Results were compared with the data of a previously published series of 117 IDH-wt glioblastomas. PD-L1 gene expression levels were evaluated in 677 diffuse gliomas grades II-IV from The Cancer Genome Atlas (TCGA) database...
May 20, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28527519/-adult-intramedullary-gliomas
#9
C Campello, F Parker, S Slimani, A Le Floch, A Herbrecht, N Aghakhani, C Lacroix, H Loiseau, J P Lejeune, G Perrin, J Honnorat, H Dufour, O Chinot, D Figarella, L Bauchet, H Duffau, M Lonjon, P Labauge, M Messerer, J P Daures, P Fabbro, B Ducot
OBJECTIVES: Intramedullary gliomas are rare tumors accounting for less than 4% of all primary central nervous system tumors. The aims of this retrospective multicenter study were to assess their natural outcome as well as management. METHODS AND MATERIALS: We studied 332 patients from 1984 to 2011. Histopathological examination revealed 72% ependymomas (94% were low grade tumors), 24% astrocytomas (29% were high grade tumors), 2.4% mixed gliomas and 1.7% oligodendrogliomas...
May 17, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28527004/comparative-volumetric-analysis-of-the-extent-of-resection-of-molecularly-and-histologically-distinct-low-grade-gliomas-and-its-role-on-survival
#10
Chikezie I Eseonu, Francisco Eguia, Karim ReFaey, Oscar Garcia, Fausto J Rodriguez, Kaisorn Chaichana, Alfredo Quinones-Hinojosa
The authors investigate the role of extent of resection (EOR) and genetic markers on patient outcome and survival for LGGs. We conducted a retrospective cohort between 2005 and 2015, of 109 adult patients who underwent surgery for a LGG by a single surgeon. Volumetric computations of MRI studies were conducted to evaluate the EOR, and genetic markers (IDH1, 1p/19q co-deletion, and p53) were assessed and their effects on survival and neurological outcome were evaluated. The median EOR was 88.1%. Permanent postoperative neurological deficits were seen in 4...
May 19, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28525381/the-cell-of-origin-dictates-the-temporal-course-of-neurofibromatosis-1-nf1-low-grade-glioma-formation
#11
Anne C Solga, Joseph A Toonen, Yuan Pan, Patrick J Cimino, Yu Ma, Guillaume A Castillon, Scott M Gianino, Mark H Ellisman, Da Yong Lee, David H Gutmann
Low-grade gliomas are one of the most common brain tumors in children, where they frequently form within the optic pathway (optic pathway gliomas; OPGs). Since many OPGs occur in the context of the Neurofibromatosis Type 1 (NF1) cancer predisposition syndrome, we have previously employed Nf1 genetically-engineered mouse (GEM) strains to study the pathogenesis of these low-grade glial neoplasms. In the light of the finding that human and mouse low-grade gliomas are composed of Olig2+ cells and that Olig2+ oligodendrocyte precursor cells (OPCs) give rise to murine high-grade gliomas, we sought to determine whether Olig2+ OPCs could be tumor-initiating cells for Nf1 optic glioma...
May 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28522666/discrimination-between-glioma-grades-ii-and-iii-using-dynamic-susceptibility-perfusion-mri-a-meta-analysis
#12
Anna F Delgado, Alberto F Delgado
BACKGROUND: DSC perfusion has been evaluated in the discrimination between low-grade and high-grade glioma but the diagnostic potential to discriminate beween glioma grades II and III remains unclear. PURPOSE: Our aim was to evaluate the diagnostic accuracy of relative maximal CBV from DSC perfusion MR imaging to discriminate glioma grades II and III. DATA SOURCES: A systematic literature search was performed in PubMed/MEDLINE, Embase, Web of Science, and ClinicalTrials...
May 18, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28522280/primary-spinal-glioma-in-children-results-from-a-referral-pediatric-institution-in-shanghai
#13
J Khalil, Z Chuanying, Z Qing, Y Belkacémi, J Mawei
PURPOSE: Primary spinal cord glioma is a rare entity especially in children; accounting for less than 10% of all central nervous system tumors. Low grade is the most reported subtype. Treatment modalities have largely evolved; large improvements have been made in the surgical field but also in both of radiotherapy and chemotherapy. Nevertheless, the optimal treatment is yet to be defined. MATERIAL AND METHODS: A chart review of 11 pediatric patients with a diagnosis of low grade spinal cord glioma at Xhinhua hospital in Shanghai was conducted...
May 15, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28506483/cortical-and-subcortical-functional-neuroanatomy-for-low-grade-glioma-surgery
#14
REVIEW
L Chenin, M Lefranc, S Velut, P Foulon, E Havet, J Peltier
Knowledge of the encephalon anatomy is crucial for neurosurgical practice, especially the main cortical functional structures and their connections. General organisation of the encephalon is presented with frontal, parietal, occipital, temporal, limbic and insular lobes and their Brodmann correspondence. Secondly, subcortical anatomy will be presented with main white matter fasciculi in three separated categories: association, commissural and projection fibers. Main association fibers are inferior occipitofrontal fasciculus, superior longitudinal fasciculus, arcuate fasciculus, inferior longitudinal fasciculus, uncinate fasciculus, and cingulum...
May 12, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28506481/peri-and-intraoperative-cognitive-and-language-assessment-for-surgical-resection-in-brain-eloquent-structures
#15
G Herbet, O Rigaux-Viodé, S Moritz-Gasser
Neuropsychological care of patients suffering from an infiltrative glioma and candidates for a neurosurgery under awake condition with intraoperative functional mapping is a critical and mandatory stage in therapeutic management. It enables to estimate the functional impact of the tumor and, consequently, the efficacy of functional reorganization typically observed in these patients, not only to better predict surgery outcomes and select appropriate tasks for intraoperative functional mapping, but also to plan efficient and individualized postoperative cognitive rehabilitation strategies...
May 12, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28500562/epithelial-growth-factor-receptor-expression-influences-5-ala-induced-glioblastoma-fluorescence
#16
Andrea O Fontana, Deborah Piffaretti, Francesco Marchi, Floriana Burgio, Ana Bela Faia-Torres, Paolo Paganetti, Sandra Pinton, Uwe Pieles, Michael Reinert
The extent of 5-aminolevulinic acid (5-ALA) guided tumor resection has a determining impact in high-grade glioma and glioblastoma surgery. Yet the intensity of the 5-ALA induced fluorescence may vary within the tumor. We aimed to correlate 5-ALA induced fluorescence with the expression of epithelial growth factor receptor (EGFR) and its constitutively active version EGFRvIII in different glioblastoma (GBM) cell lines. To elucidate the role of EGFR in the metabolism of 5-ALA in GBM cell lines with variable EGFR expression status, we analyzed the activation of EGFR by its primary ligand EGF, and its downstream effect on Heme oxygenase-1 (HO-1), a key enzyme regulating the metabolism of Protoporphyrin IX (PpIX), the fluorescent metabolite of 5-ALA...
May 12, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28499219/oxidant-and-anti-oxidant-status-in-common-brain-tumors-correlation-to-tp53-and-human-biliverdin-reductase
#17
Pinar Atukeren, Sena Oner, Oguz Baran, Rahsan Kemerdere, Bulent Eren, Ufuk Cakatay, Taner Tanriverdi
OBJECTIVE: To assess oxidant and antioxidant status in patients with common brain tumors; namely meningiomas, low-grade gliomas (LGG) and high-grade gliomas (HGG) and to compare with normal brain tissues. PATIENTS AND METHODS: Almost nine biomarkers were measured in 59 brain tumors obtained during surgery and 15 normal brain tissues that were collected during autopsy. Results were compared between two groups. RESULTS: In general, protein oxidation and lipid peroxidation increased while antioxidant capacity decreased significantly in tumors compared to the controls (p<0...
May 3, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28497806/management-of-diffuse-low-grade-gliomas-in-adults-use-of-molecular-diagnostics
#18
REVIEW
Jan Buckner, Caterina Giannini, Jeanette Eckel-Passow, Daniel Lachance, Ian Parney, Nadia Laack, Robert Jenkins
Diffuse WHO grade II gliomas are histologically and genetically heterogeneous. The 2016 WHO classification redefines grade II gliomas with respect to morphological and molecular tumour alterations: grade II oligodendrogliomas are defined by the presence of whole-arm codeletion in chromosomal arms 1p/19q, whereas isocitrate dehydrogenase (IDH) mutations define subclasses of astrocytoma. Although histological grade remains useful, the prognoses of patients with glioma are more tightly associated with molecular alterations than with grade, and chromosomal and gene array technologies are becoming increasingly beneficial in understanding tumour genetic heterogeneity...
May 12, 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/28497669/mapping-seizure-foci-and-tumor-genetic-factors-in-glioma-associated-seizure-patients
#19
Mao Yunhe, Yang Yuan, Wang Xiang, Liu Yanhui, Mao Qing
BACKGROUND: Epilepsy, which is the most common symptom accompanying gliomas, was reported as an independent favorable prognosis factor for glioma patients. However, the correlation between glioma location and epilepsy prognosis, genesis and genetic phenotypes of the glioma associated seizure (GAS) patients is far from clear, the purpose of the current study was to provide probabilistic radiographic atlases reflecting seizure susceptible regions, relationship between tumor associated biomarkers and seizure initiation and poor epilepsy prognosis areas...
May 11, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28492978/seizure-response-to-perampanel-in-drug-resistant-epilepsy-with-gliomas-early-observations
#20
Charles Vecht, Alberto Duran-Peña, Caroline Houillier, Thomas Durand, Laurent Capelle, Gilles Huberfeld
Drug-resistant epilepsy (DRE) occurs commonly in gliomas, possibly due to a shared mechanism of AMPA-activation involving both seizure activity and tumor growth. We tested the AMPA-receptor blocker perampanel (PER) in patients with DRE in low- and high-grade gliomas. Seizure response was defined as 50% drop in seizure frequency or as seizure-freedom. Cognitive function was examined by computerized test on cognitive speed (CTCS), which is sensitive to the type of cognitive dysfunction associated with epilepsy and use of anticonvulsants...
May 10, 2017: Journal of Neuro-oncology
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