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Journal of Neuro-oncology

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https://www.readbyqxmd.com/read/28721485/non-additive-and-epistatic-effects-of-hla-polymorphisms-contributing-to-risk-of-adult-glioma
#1
Chenan Zhang, Adam J de Smith, Ivan V Smirnov, John K Wiencke, Joseph L Wiemels, John S Witte, Kyle M Walsh
Although genome-wide association studies have identified several susceptibility loci for adult glioma, little is known regarding the potential contribution of genetic variation in the human leukocyte antigen (HLA) region to glioma risk. HLA associations have been reported for various malignancies, with many studies investigating selected candidate HLA polymorphisms. However, no systematic analysis has been conducted in glioma patients, and no investigation into potential non-additive effects has been described...
July 18, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28717885/risk-of-severe-acute-liver-injury-among-patients-with-brain-cancer-treated-with-temozolomide-a-nested-case-control-study-using-the-healthcore-integrated-research-database
#2
Vibha C A Desai, Scott C Quinlan, Anne C Deitz, Jinghua He, Crystal N Holick, Stephan Lanes
Temozolomide (TMZ) is used to treat adult patients with glioblastoma multiforme (GBM). Cases of hepatotoxicity have been reported among patients using TMZ. The objective of the study was to assess the relation, if any, between exposure to TMZ and serious acute liver injury (SALI). We used the HealthCore Integrated Research Database to perform a case-control study nested within a retrospective cohort of adult patients aged 18-100 years with at least two diagnoses of brain cancer anytime between 2006 and 2014...
July 17, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28717884/serum-concentrations-of-glial-fibrillary-acidic-protein-gfap-do-not-indicate-tumor-recurrence-in-patients-with-glioblastoma
#3
Julia-Mareen Vietheer, Johannes Rieger, Marlies Wagner, Christian Senft, Julia Tichy, Christian Foerch
Recent studies identified serum concentrations of the astroglial protein glial fibrillary acidic protein (GFAP) to be indicative of glioblastoma (GBM) in patients with newly diagnosed space occupying cerebral mass lesions. Until now, no data is available whether GFAP serum concentrations decrease after first therapy and whether GFAP may be used as a predictor of survival and an indicator of tumor recurrence. In this prospective study, we included 44 patients with a single space occupying cerebral mass lesion suspicious for GBM...
July 17, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28702781/radiographic-patterns-of-progression-with-associated-outcomes-after-bevacizumab-therapy-in-glioblastoma-patients
#4
David Cachia, Nabil A Elshafeey, Carlos Kamiya-Matsuoka, Masumeh Hatami, Kristin D Alfaro-Munoz, Jacob J Mandel, Rivka Colen, John F DeGroot
Treatment response and survival after bevacizumab failure remains poor in patients with glioblastoma. Several recent publications examining glioblastoma patients treated with bevacizumab have described specific radiographic patterns of disease progression as correlating with outcome. This study aims to scrutinize these previously reported radiographic prognostic models in an independent data set to inspect their reproducibility and potential for clinical utility. Sixty four patients treated at MD Anderson matched predetermined inclusion criteria...
July 12, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28695311/aberrant-paramagnetic-signals-outside-the-tumor-volume-on-routine-surveillance-mri-of-brain-tumor-patients
#5
Shlomit Yust-Katz, Edna Inbar, Natalia Michaeli, Dror Limon, Tali Siegal
Late complications of cerebral radiation therapy (RT) involve vascular injury with acquired cavernous malformation, telangiectasias and damage to vascular walls which are well recognized in children. Its incidence in adults is unknown. Blood products and iron deposition that accompany vascular injury create paramagnetic effects on MRI. This study retrospectively investigated the frequency of paramagnetic lesions on routine surveillance MRI of adult brain tumor patients. MRI studies of 115 brain tumor patients were reviewed...
July 10, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28691143/meningeal-haemangiopericytoma-and-solitary-fibrous-tumour-a-retrospective-bi-centre-study-for-outcome-and-prognostic-factor-assessment
#6
Charles Champeaux, Akbar Ali Khan, Elena Wilson, Lewis Thorne, Laurence Dunn
To describe the outcome of patients diagnosed with central nervous system haemangiopericytoma (HPC) or solitary fibrous tumour (SFT) and identify factors that may influence recurrence and survival. Between January 2000 and September 2016, a retrospective search identified 55 HPCs/SFTs. The patients underwent a total of 101 surgical resections and 56.9% received radiation therapy. Median follow-up was 7.8 years. 28 patients (50.9%) were re-operated for tumour recurrence. At the end of the study, 21 patients (42%) had no residual tumour on the last scan...
July 10, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28689368/maximize-surgical-resection-beyond-contrast-enhancing-boundaries-in-newly-diagnosed-glioblastoma-multiforme-is-it-useful-and-safe-a-single-institution-retrospective-experience
#7
Federico Pessina, Pierina Navarria, Luca Cozzi, Anna Maria Ascolese, Matteo Simonelli, Armando Santoro, Elena Clerici, Marco Rossi, Marta Scorsetti, Lorenzo Bello
The extent of surgical resection (EOR) has been recorded as conditioning outcome in glioblastoma multiforme (GBM) patients but no significant improvements were recorded in survival. The study aimed to evaluate the impact of EOR on survival, investigating the role of fluid-attenuated inversion recovery (FLAIR) abnormalities removal. 282 newly diagnosed GBM patients were treated with surgery followed by concurrent and adjuvant chemo-radiotherapy. The EOR was defined as: SUPr, in case of resection amounting to 100% of enhanced and FLAIR areas; gross total (GTR) in case of resection between 90 and 100% of enhanced areas with variable amount of FLAIR abnormalities; sub-total (STR), between 10 and 89%; biopsy (B) <10%...
July 8, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28687924/definitive-chemoradiation-at-high-volume-facilities-is-associated-with-improved-survival-in-glioblastoma
#8
Waqar Haque, Vivek Verma, E Brian Butler, Bin S Teh
The standard of care for glioblastoma (GBM) is maximal safe resection followed by concurrent chemoradiation (CRT). For several neoplasms, receipt of radiation treatment at high-volume facilities has been associated with improved overall survival (OS). The purpose of the present investigation was to determine if there was an association between receipt of CRT for GBM at facilities with a higher case volume and improved OS. The National Cancer Data Base was queried for patients with GBM diagnosed between 2006 and 2012 that received full-course CRT...
July 7, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28687923/lapatinib-with-whole-brain-radiotherapy-in-patients-with-brain-metastases-from-breast-and-non-small-cell-lung-cancer-a-phase-ii-study-of-the-hellenic-cooperative-oncology-group-hecog
#9
Christos Christodoulou, Anna Kalogera-Fountzila, Vasilios Karavasilis, George Kouvatseas, Christos N Papandreou, Epaminontas Samantas, Kalliopi Varaki, Georgios Papadopoulos, Mattheos Bobos, Grigorios Rallis, Evangelia Razis, Athina Goudopoulou, Konstantine T Kalogeras, Konstantinos N Syrigos, George Fountzilas
Small molecules, mainly tyrosine kinase inhibitors, are currently used in various malignancies. Lapatinib, a dual inhibitor of EGFR/HER2 tyrosine kinases, has demonstrated effectiveness in brain metastases from HER2-overexpressing breast cancer. It also appears to sensitize EGFR-expressing cell lines to radiation. To evaluate the efficacy of lapatinib in combination with whole brain radiotherapy (WBRT) in patients with brain metastases from non-small cell lung cancer (NSCLC) and breast cancer, as assessed by volumetric analysis by MRI...
July 7, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28685405/impact-of-removed-tumor-volume-and-location-on-patient-outcome-in-glioblastoma
#10
Al-Wala Awad, Michael Karsy, Nader Sanai, Robert Spetzler, Yue Zhang, Yizhe Xu, Mark A Mahan
Glioblastoma is an aggressive primary brain tumor with devastatingly poor prognosis. Multiple studies have shown the benefit of wider extent of resection (EOR) on patient overall survival (OS) and worsened survival with larger preoperative tumor volumes. However, the concomitant impact of postoperative tumor volume and eloquent location on OS has yet to be fully evaluated. We performed a retrospective chart review of adult patients treated for glioblastoma from January 2006 through December 2011. Adherence to standardized postoperative chemoradiation protocols was used as an inclusion criterion...
July 6, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28685404/analysis-of-factors-influencing-the-access-to-concomitant-chemo-radiotherapy-in-elderly-patients-with-high-grade-gliomas-role-of-mmse-age-and-tumor-volume
#11
Andrea Di Cristofori, Barbara Zarino, Claudia Fanizzi, Giorgia Abete Fornara, Giulio Bertani, Paolo Rampini, Giorgio Carrabba, Manuela Caroli
High grade gliomas (HGG) are tumors with a rapidly progressive course and the standard of care consists of surgery and chemo-radiotherapy. Elderly patients with HGG usually have a worse prognosis due to their comorbidities and difficulties in accessing or completing adjuvant treatments. The purpose of our study was to assess the influence of pre-operative factors (MMSE, age, sex, KPS, tumor volume) on the post-operative access to chemo-radiotherapy in the elderly population. In addition, the influence of the access to adjuvant therapies on overall survival (OS) was assessed...
July 6, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28681244/survival-rates-and-prognostic-predictors-of-high-grade-brain-stem-gliomas-in-childhood-a-systematic-review-and-meta-analysis
#12
REVIEW
Hadeel Hassan, Anne Pinches, Susan V Picton, Robert S Phillips
Diagnosis of a pediatric high grade brain stem glioma is devastating with dismal outcomes. This systematic review and meta-analysis was undertaken to determine the survival rates and assess potential prognostic factors including selected interventions. Studies included involved pediatric participants with high grade brain stem gliomas diagnosed by magnetic resonance imaging or biopsy reporting overall survival rates. Meta-analysis was undertaken using a binomial random effects model. Sixty-five studies (2336 participants) were included...
July 5, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28681243/synergistic-inhibition-of-glioma-cell-proliferation-by-withaferin-a-and-tumor-treating-fields
#13
Edwin Chang, Christoph Pohling, Nooshin Beygui, Chirag B Patel, Jarrett Rosenberg, Dong Ho Ha, Sanjiv S Gambhir
Glioblastoma (GBM) is the most aggressive and lethal form of brain cancer. Standard therapies are non-specific and often of limited effectiveness; thus, efforts are underway to uncover novel, unorthodox therapies against GBM. In previous studies, we investigated Withaferin A, a steroidal lactone from Ayurvedic medicine that inhibits proliferation in cancers including GBM. Another novel approach, tumor treating fields (TTFields), is thought to disrupt mitotic spindle formation and stymie proliferation of actively dividing cells...
July 5, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28677108/design-fluency-and-neuroanatomical-correlates-in-54-neurosurgical-patients-with-lesions-to-the-right-hemisphere
#14
Dario Marin, Eleonora Madotto, Franco Fabbro, Miran Skrap, Barbara Tomasino
We addressed the neuroanatomical correlates of 54 right-brain-damaged neurosurgical patients on visuo-spatial design fluency, which is a measure of the ability to generate/plan a series of new abstract combinations in a flexible way. 22.2% of the patients were impaired. They failed the task because they did not use strategic behavior, in particular they used rotational strategy to a significantly lower extent and produced a significantly higher rate of perseverative errors. Overall performance did not correlate with neuropsychological tests, suggesting that proficient performance was independent of other cognitive domains...
July 4, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28677107/a-french-retrospective-study-on-clinical-outcome-in-102-choroid-plexus-tumors-in-children
#15
A Siegfried, S Morin, C Munzer, M B Delisle, M Gambart, S Puget, C A Maurage, C Miquel, C Dufour, P Leblond, N André, D Figarella Branger, J Kanold, J-L Kemeny, C Icher, A Vital, E Uro Coste, A I Bertozzi
The aim of this study was to review and describe therapeutic approaches in children with choroid plexus tumor (CPT) based on a nationwide series. The World Health Organization classification subdivides these rare tumors into three histological subtypes corresponding to three grades of malignancy: low grade (grade I) choroid plexus papilloma (CPP), intermediate grade (grade II) atypical choroid plexus papilloma (aCPP) and high grade (grade III) choroid plexus carcinoma (CPC). This retrospective study included 102 French children younger than 18 years, treated from 2000 to 2012: 54 CPP, 26 aCPP and 22 CPC...
July 4, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28677106/expression-and-prognostic-value-of-jam-a-in-gliomas
#16
Ann Mari Rosager, Mia D Sørensen, Rikke H Dahlrot, Henning B Boldt, Steinbjørn Hansen, Justin D Lathia, Bjarne W Kristensen
Gliomas are among the most lethal cancers, being highly resistant to both chemo- and radiotherapy. The expression of junctional adhesion molecule-A (JAM-A) was recently identified on the surface of stem cell-like brain tumor-initiating cells and suggested to function as a unique glioblastoma niche adhesion factor influencing the tumorigenic potential of brain tumor-initiating cells. We have recently identified high JAM-A expression to be associated with poor outcome in glioblastomas, and our aim was to further investigate the expression of JAM-A in gliomas focusing especially on the prognostic value in WHO grade II and III gliomas...
July 4, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28674975/elderly-patients-with-newly-diagnosed-glioblastoma-can-preoperative-imaging-descriptors-improve-the-predictive-power-of-a-survival-model
#17
Mina Park, Seung-Koo Lee, Jong Hee Chang, Seok-Gu Kang, Eui Hyun Kim, Se Hoon Kim, Mi Kyung Song, Bo Gyoung Ma, Sung Soo Ahn
The purpose of this study was to identify independent prognostic factors among preoperative imaging features in elderly glioblastoma patients and to evaluate whether these imaging features, in addition to clinical features, could enhance the predictive power of survival models. This retrospective study included 108 patients ≥65 years of age with newly diagnosed glioblastoma. Preoperative clinical features (age and KPS), postoperative clinical features (extent of surgery and postoperative treatment), and preoperative MRI features were assessed...
July 3, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28674974/differentiating-radiation-necrosis-from-tumor-progression-in-brain-metastases-treated-with-stereotactic-radiotherapy-utility-of-intravoxel-incoherent-motion-perfusion-mri-and-correlation-with-histopathology
#18
Jay S Detsky, Julia Keith, John Conklin, Sean Symons, Sten Myrehaug, Arjun Sahgal, Chinthaka C Heyn, Hany Soliman
Radiation necrosis is a serious potential adverse event of stereotactic radiosurgery that cannot be reliably differentiated from recurrent tumor using conventional imaging techniques. Intravoxel incoherent motion (IVIM) is a magnetic resonance imaging (MRI) based method that uses a diffusion-weighted sequence to estimate quantitative perfusion and diffusion parameters. This study evaluated the IVIM-derived apparent diffusion coefficient (ADC) and perfusion fraction (f), and compared the results to the gold standard histopathological-defined outcomes of radiation necrosis or recurrent tumor...
July 3, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28674973/breast-cancer-subtype-and-stage-are-prognostic-of-time-from-breast-cancer-diagnosis-to-brain-metastasis-development
#19
Anurag Saraf, Christopher S Grubb, Mark E Hwang, Cheng-Hung Tai, Cheng-Chia Wu, Ashish Jani, Matthew E Lapa, Jacquelyn I S Andrews, Sierra Vanderkelen, Steven R Isaacson, Adam M Sonabend, Sameer A Sheth, Guy M McKhann, Michael B Sisti, Jeffrey N Bruce, Simon K Cheng, Eileen P Connolly, Tony J C Wang
Breast cancer brain metastasis (BCBM) is associated with high morbidity and mortality. Patients with breast cancer risk factors associated with rapid development of BCBM could potentially benefit from early brain metastasis screening. We retrospectively reviewed all BCBM patients treated with brain radiotherapy at our institution from 1997 to 2015. Interval time to BCBM was defined as date of pathologic breast cancer diagnosis to date of radiographic evidence of brain metastasis. Patients were stratified by breast cancer molecular subtype and stage at diagnosis...
July 3, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28669014/temporal-evolution-of-perfusion-parameters-in-brain-metastases-treated-with-stereotactic-radiosurgery-comparison-of-intravoxel-incoherent-motion-and-dynamic-contrast-enhanced-mri
#20
Anish Kapadia, Hatef Mehrabian, John Conklin, Sean P Symons, Pejman J Maralani, Greg J Stanisz, Arjun Sahgal, Hany Soliman, Chinthaka C Heyn
Intravoxel incoherent motion (IVIM) is a magnetic resonance imaging (MRI) technique that is seeing increasing use in neuro-oncology and offers an alternative to contrast-enhanced perfusion techniques for evaluation of tumor blood volume after stereotactic radiosurgery (SRS). To date, IVIM has not been validated against contrast enhanced techniques for brain metastases after SRS. In the present study, we measure blood volume for 20 brain metastases (15 patients) at baseline, 1 week and 1 month after SRS using IVIM and dynamic contrast enhanced (DCE)-MRI...
July 1, 2017: Journal of Neuro-oncology
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