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https://www.readbyqxmd.com/read/29343527/visual-outcomes-after-chemotherapy-for-optic-pathway-glioma-in-children-with-and-without-neurofibromatosis-type-1-results-of-the-international-society-of-paediatric-oncology-siop-low-grade-glioma-2004-trial-uk-cohort
#1
Kevin Falzon, Evangelos Drimtzias, Susan Picton, Ian Simmons
AIMS: To report visual acuity (VA) outcomes following chemotherapy for optic pathway glioma (OPG) in children with or without neurofibromatosis type-1 (NF1) and to analyse associated risk factors. METHODS: A prospective, multicentre, cohort study involving 155 children treated between September 2004 and December 2012. Initial and final VA was used for per-eye and per-subject analysis. Correlation tests were performed to determine whether initial VA predicted final VA...
January 17, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29330751/prospective-trial-evaluating-the-sensitivity-and-specificity-of-3-4-dihydroxy-6-18f-fluoro-l-phenylalanine-18f-dopa-pet-and-mri-in-patients-with-recurrent-gliomas
#2
Ryan S Youland, Deanna H Pafundi, Debra H Brinkmann, Val J Lowe, Jonathan M Morris, Bradley J Kemp, Christopher H Hunt, Caterina Giannini, Ian F Parney, Nadia N Laack
Treatment-related changes can be difficult to differentiate from progressive glioma using MRI with contrast (CE). The purpose of this study is to compare the sensitivity and specificity of 18F-DOPA-PET and MRI in patients with recurrent glioma. Thirteen patients with MRI findings suspicious for recurrent glioma were prospectively enrolled and underwent 18F-DOPA-PET and MRI for neurosurgical planning. Stereotactic biopsies were obtained from regions of concordant and discordant PET and MRI CE, all within regions of T2/FLAIR signal hyperintensity...
January 13, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29328863/overexpression-of-mtor-and-p-240-244-s6-in-idh1-wild-type-human-glioblastomas-is-predictive-of-low-survival
#3
Luis Eduardo Machado, Arthur William Alvarenga, Fernanda Ferreira da Silva, Martín Roffé, Maria Dirlei Begnami, Luís Fernando Bleggi Torres, Isabela Werneck da Cunha, Vilma Regina Martins, Glaucia Noeli Maroso Hajj
PI3K/Akt/mTOR pathway activation is a hallmark of high-grade gliomas, which prompted clinical trials for the use of PI3K and mTOR inhibitors. However, the poor results in the original trials suggested that better patient profiling was needed for such drugs. Thus, accurate and reproducible monitoring of mTOR complexes can lead to improved therapeutic strategies. In this work, we evaluated the expression and phosphorylation of mTOR, RAPTOR, and rpS6 in 195 human astrocytomas and 30 normal brain tissue samples...
January 1, 2018: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/29328446/clinical-significance-of-iroquois-homeobox-gene-irx1-in-human-glioma
#4
Pengxing Zhang, Nan Liu, Xiaoshan Xu, Zhen Wang, Yingduan Cheng, Weilin Jin, Xin Wang, Hongwei Yang, Hui Liu, Yongsheng Zhang, Yanyang Tu
The present study aimed to investigate the location, expression and clinical significance of Iroquois homeobox gene (IRX1) in human glioma. The expression of IRX1 gene in glioma cell lines (U87, U373, LN229 and T98G) and normal brain tissue was detected via reverse transcription-polymerase chain reaction. The IRX1 protein in fresh glioma specimens, with the adjacent normal brain tissue, was quantified through western blotting. The archived glioma only specimens from the present hospital and glioma specimens with adjacent normal brain tissue, from Alenabio biotechnology, were subjected to immunohistochemistry and tissue microarray analysis, respectively...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29327173/personality-traits-patient-centered-health-status-and-prognosis-of-brain-tumor-patients
#5
Adomas Bunevicius
Personality traits can be related to prognosis of cancer patients. The study aimed to evaluate the association of big-five personality dimensions with emotional and cognitive health status, and prognosis of brain tumor patients. A total of 178 patients admitted for brain tumor surgery were evaluated for personality traits (Tem item Personality Inventory), depressive/anxiety symptoms (Hospital Anxiety and Depression Scale or HADS) and cognitive functioning (Mini Mental State Examination or MMSE) on admission...
January 11, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29322428/feasibility-of-the-evidence-based-cognitive-telerehabilitation-program-remind-for-patients-with-primary-brain-tumors
#6
Sophie D van der Linden, Margriet M Sitskoorn, Geert-Jan M Rutten, Karin Gehring
Many patients with primary brain tumors experience cognitive deficits. Cognitive rehabilitation programs focus on alleviating these deficits, but availability of such programs is limited. Our large randomized controlled trial (RCT) demonstrated positive effects of the cognitive rehabilitation program developed by our group. We converted the program into the iPad-based cognitive rehabilitation program ReMind, to increase its accessibility. The app incorporates psychoeducation, strategy training and retraining...
January 10, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29322427/immunophenotyping-of-pediatric-brain-tumors-correlating-immune-infiltrate-with-histology-mutational-load-and-survival-and-assessing-clonal-t-cell-response
#7
Ashley S Plant, Shohei Koyama, Claire Sinai, Isaac H Solomon, Gabriel K Griffin, Keith L Ligon, Pratiti Bandopadhayay, Rebecca Betensky, Ryan Emerson, Glenn Dranoff, Mark W Kieran, Jerome Ritz
There is little known regarding the immune infiltrate present in pediatric brain tumors and how this compares to what is known about histologically similar adult tumors and its correlation with survival. Here, we provide a descriptive analysis of the immune infiltrate of 22 fresh pediatric brain tumor tissue samples of mixed diagnoses and 40 peripheral blood samples. Samples were analyzed using a flow cytometry panel containing markers for immune cell subtypes, costimulatory markers, inhibitory signals, and markers of activation...
January 10, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29319489/spatiotemporal-evolution-of-a-low-grade-glioma-with-divergent-oligodendroglial-and-astrocytic-lineages
#8
Thomas Roetzer, Melitta Kitzwoegerer, Gertraud Heinz, Stefan Oberndorfer, Franz Marhold, Johannes A Hainfellner, Adelheid Woehrer
No abstract text is available yet for this article.
January 10, 2018: Clinical Neuropathology
https://www.readbyqxmd.com/read/29315108/review-of-molecular-classification-and-treatment-implications-of-pediatric-brain-tumors
#9
Ana S Guerreiro Stucklin, Vijay Ramaswamy, Craig Daniels, Michael D Taylor
PURPOSE OF REVIEW: Brain tumors are the most common solid tumors and leading cause of cancer-related death in children. The advent of large-scale genomics has resulted in a plethora of profiling studies that have mapped the genetic and epigenetic landscapes of pediatric brain tumors, ringing in a new era of precision diagnostics and targeted therapies. In this review, we highlight the most recent findings, focusing on studies published after 2015, and discuss how new evidence is changing the care of children with brain tumors...
February 2018: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/29313159/improved-differentiation-of-low-grade-and-high-grade-gliomas-and-detection-of-tumor-proliferation-using-apt-contrast-fitted-from-z-spectrum
#10
Jiaxuan Zhang, Wenzhen Zhu, Rongwen Tain, Xiaohong Joe Zhou, Kejia Cai
PURPOSE: The purpose of the study is to demonstrate the value of quantitative amide proton transfer (APT) imaging for differentiating glioma grades and detecting tumor proliferation. PROCEDURES: This study included 32 subjects with 16 low-grade gliomas (LGG) and 16 high-grade gliomas (HGG) confirmed by histopathology. Chemical exchange saturation transfer (CEST) magnetic resonance imaging with APT weighting was performed on a 3 T scanner. After B0 correction, Z-spectra were fitted with Lorentzian functions corresponding to the upfield semi-solid magnetization transfer and nuclear overhauser enhancement (MT&NOE) effect, the direct saturation (DS) effect, and the downfield APT effect centered at around - 1...
January 8, 2018: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/29309973/digital-pcr-quantification-of-serpina1-predicts-prognosis-in-high-grade-glioma
#11
Satoshi Ookawa, Masahiko Wanibuchi, Yuko Kataoka-Sasaki, Masanori Sasaki, Shinichi Oka, Shunya Ohtaki, Shouhei Noshiro, Katsuya Komatsu, Yukinori Akiyama, Takeshi Mikami, Nobuhiro Mikuni, Jeffery D Kocsis, Osamu Honmou
BACKGROUND: SERPINA1 plays an anti-inflammatory role in protecting tissues from proteolytic mechanisms. SERPINA1 is positive in gliomas by immunohistochemical analysis; however, the role of SERPINA1 including the relationship with prognosis has been uncertain. In recent years, digital polymerase chain reaction (PCR) has provided ultra-sensitive assessment of mRNA expression from formalin fixed paraffin embedded (FFPE) tissues. OBJECTIVE: In this study, we quantitatively determined the expression of SERPINA1 in high-grade gliomas (HGGs) using digital PCR and analyzed its relationship with prognosis...
January 5, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29306321/relationship-between-the-extent-of-resection-and-the-survival-of-patients-with-low-grade-gliomas-a-systematic-review-and-meta-analysis
#12
Liang Xia, Chenyan Fang, Gao Chen, Caixing Sun
BACKGROUND: Surgical resection is necessary to conduct a pathological biopsy and to achieve a reduction of intracranial pressure in low-grade gliomas patients. This study aimed to determine whether a greater extent of resection would increase the overall 5-year and 10-year survival of patients with low-grade gliomas. METHODS: The studies addressing relationship between the extent of resection and the prognosis of low-grade gliomas updated until March 2017 were systematically searched in two databases (Pubmed and EMBASE)...
January 6, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29305708/identification-of-specific-feed-forward-apoptosis-mechanisms-and-associated-higher-survival-rates-for-low-grade-glioma-and-lung-squamous-cell-carcinoma
#13
Dhiraj Sikaria, Yaping N Tu, Diana A Fisler, James A Mauro, George Blanck
The mechanisms of cell proliferation due to the overexpression of certain transcription factors (TFs) have been well documented in the cancer setting. However, many of these same TFs have pro-apoptotic effects, particularly when expressed or activated at high levels, a process referred to as feed-forward apoptosis (FFA). To determine whether cancers could be stratified on the basis of specific FFA signatures, RNASeq data representing samples from the cancer genome atlas were analyzed, revealing that high expression of the pro-proliferative TFs, MYC and YY1, is associated with a favorable outcome in low-grade glioma (LGG) and lung squamous cell carcinoma (LUSC), respectively...
January 5, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29304249/extent-of-surgery-in-low-grade-gliomas-an-old-question-in-a-new-context
#14
Roberta Rudà, Riccardo Soffietti
No abstract text is available yet for this article.
January 3, 2018: Neuro-oncology
https://www.readbyqxmd.com/read/29301781/addition-of-amide-proton-transfer-imaging-to-fdg-pet-ct-improves-diagnostic-accuracy-in-glioma-grading-a-preliminary-study-using-the-continuous-net-reclassification-analysis
#15
A Sakata, T Okada, Y Yamamoto, Y Fushimi, T Dodo, Y Arakawa, Y Mineharu, B Schmitt, S Miyamoto, K Togashi
BACKGROUND AND PURPOSE: Amide proton transfer imaging has been successfully applied to brain tumors, however, the relationships between amide proton transfer and other quantitative imaging values have yet to be investigated. The aim was to examine the additive value of amide proton transfer imaging alongside [18F] FDG-PET and DWI for preoperative grading of gliomas. MATERIALS AND METHODS: Forty-nine patients with newly diagnosed gliomas were included in this retrospective study...
January 4, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29299739/nonlinear-deformation-of-tractography-in-ultrasound-guided-low-grade-gliomas-resection
#16
Yiming Xiao, Live Eikenes, Ingerid Reinertsen, Hassan Rivaz
PURPOSE: In brain tumor surgeries, maximum removal of cancerous tissue without compromising normal brain functions can improve the patient's survival rate and therapeutic benefits. To achieve this, diffusion MRI and intra-operative ultrasound (iUS) can be highly instrumental. While diffusion MRI allows the visualization of white matter tracts and helps define the resection plan to best preserve the eloquent areas, iUS can effectively track the brain shift after craniotomy that often renders the pre-surgical plan invalid, ensuring the accuracy and safety of the intervention...
January 3, 2018: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/29297618/siop-podc-adapted-treatment-guidelines-for-low-grade-gliomas-in-low-and-middle-income-settings
#17
Laila Hessissen, Jeannette Parkes, Nisreen Amayiri, Naureen Mushtaq, Nongnuch Sirachainan, Yavuz Anacak, Dipayan Mitra, Anthony Figaji, Antoinette Schouten-van Meeteren, Michael Sullivan, Hester Burger, Alan Davidson, Eric Bouffet, Simon Bailey
Effective treatment of children with low grade glioma (LGG) requires a functioning multi-disciplinary team with adequate neurosurgical, neuroradiological, pathological, radiotherapy and chemotherapy facilities and personnel. In addition, the treating centre should have the capacity to manage a variety of LGG and treatment-associated complications. These requirements have made it difficult for many centers in low and middle-income countries (LMIC) to offer effective treatment and follow up. This article provides management recommendations for children with LGG according to the level of facilities available...
December 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29288860/association-between-idh1-2-mutation-and-preoperative-seizures-in-patients-with-low-grade-versus-high-grade-glioma-a-systematic-review-and-meta-analysis
#18
Kevin Phan, Wyatt Ng, Victor M Lu, Kerrie L McDonald, Jacob Fairhall, Rajesh Reddy, Peter Wilson
BACKGROUND: Seizures are a common presentation of brain tumors particularly in gliomas. Higher incidences of seizure have been reported in low-grade glioma and tumors located within the temporal and insular area. The association between IDH1/2 mutations with preoperative seizures in glioma and the magnitude of this association in low versus high-grade gliomas remains unclear. To clarify this relationship, a systematic review and meta-analysis was performed. METHOD: Following the PRISMA guidelines and systematic review recommendations, electronic searches were performed on varies journal database and included literature up to May 2017...
December 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29288842/an-integrative-survival-analysis-with-identification-of-prognostic-factors-in-the-patients-with-coexisting-glioma-and-intracranial-aneurysm
#19
Xiaodong Niu, Tianwei Wang, Jin Li, Liping Niu, Yuan Yang, Xiang Wang, Yanhui Liu, Qing Mao
OBJECTIVE: This study aimed to perform an integrative clinical and survival analysis for the patients with coexisting glioma and intracranial aneurysm and to assess the influence of prognostic factors on overall survival (OS). METHODS: A systematic literature search on PubMed and Web of Science was performed for literature in English published from 1951 to Aug 2017. Detailed information including clinical characteristics, treatments, critical events, and time to events for survival analysis was extracted from the included articles...
December 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29285516/semisupervised-learning-using-denoising-autoencoders-for-brain-lesion-detection-and-segmentation
#20
Varghese Alex, Kiran Vaidhya, Subramaniam Thirunavukkarasu, Chandrasekharan Kesavadas, Ganapathy Krishnamurthi
The work explores the use of denoising autoencoders (DAEs) for brain lesion detection, segmentation, and false-positive reduction. Stacked denoising autoencoders (SDAEs) were pretrained using a large number of unlabeled patient volumes and fine-tuned with patches drawn from a limited number of patients ([Formula: see text], 40, 65). The results show negligible loss in performance even when SDAE was fine-tuned using 20 labeled patients. Low grade glioma (LGG) segmentation was achieved using a transfer learning approach in which a network pretrained with high grade glioma data was fine-tuned using LGG image patches...
October 2017: Journal of Medical Imaging
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