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Journal of Neuro-oncology

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https://www.readbyqxmd.com/read/28337582/radio-sensitising-effect-of-t-dm1-should-not-be-discarded-for-the-efficacy-of-radiosurgery-in-the-management-of-brain-metastases-in-patients-with-her2-positive-metastatic-breast-cancer
#1
LETTER
https://www.readbyqxmd.com/read/28332000/neutrophil-lymphocyte-ratio-dynamics-during-concurrent-chemo-radiotherapy-for-glioblastoma-is-an-independent-predictor-for-overall-survival
#2
Matthew Mason, Catherine Maurice, Mairead G McNamara, Minh Thi Tieu, Zarnie Lwin, Barbara-Ann Millar, Cynthia Menard, Normand Laperriere, Michael Milosevic, Eshetu G Atenafu, Warren Mason, Caroline Chung
Elevated neutrophil-lymphocyte ratio (NLR) may predict worse outcomes in cancer, including glioblastoma (GBM). This study assessed whether change in NLR during focal radiotherapy and concomitant temozolomide (RT-TMZ) provides further prognostic information. This was a retrospective review of patients treated with RT-TMZ for histologically confirmed GBM from January 2004 to September 2010. Variables assessed included age, ECOG performance status (PS), dexamethasone use and extent of surgery. Hematological results were collected at baseline, during and 4 weeks post RT-TMZ...
March 22, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28321704/overexpression-of-nima-related-kinase-2-is-associated-with-poor-prognoses-in-malignant-glioma
#3
Huajie Liu, Bin Liu, Xianzeng Hou, Bo Pang, Pengbo Guo, Wanli Jiang, Qian Ding, Rui Zhang, Tao Xin, Hua Guo, Shangchen Xu, Qi Pang
Eleated expression of NIMA-related kinase 2 (NEK2) was frequently observed in a variety of malignant cancers, and it appears to be involved in the initiation, maintenance, progression, metastasis of cancer and is positively associated with poor prognosis. We sought to investigate NEK2 expression and its predictive roles in malignant gliomas, and study the correlation of NEK2 protein expression with proliferation, clinical parameters, overall survival and some other parameters. We investigate NEK2 protein expression in 99 samples of malignant gliomas, including 35 WHO grade II, 22 grade III, and 42 grade IV gliomas, by immunohistochemistry and western blot (n = 50)...
March 21, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28315998/chordoid-glioma-of-the-third-ventricle-report-of-a-rapidly-progressive-case
#4
Amalie A Erwood, Jose E Velazquez-Vega, Stewart Neill, David A Solomon, Nicholas Butowski, Adam Nowlan, Erin Dunbar, Daniel J Brat
Chordoid gliomas are slowly growing third ventricular tumors that can be challenging to manage clinically. Rapid progression causing death has not been previously reported for this tumor type. We present and discuss a case of chordoid glioma that arose in a 46-year-old female who presented with progressive fatigue, headache, and altered mental status, attributable to severe hydrocephalus caused by a third ventricular mass. She underwent urgent subtotal resection and ventriculo-peritoneal shunt placements. Post-operative MRI noted residual tumor in the anterior resection cavity...
March 18, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28315063/the-effect-of-regadenoson-on-the-integrity-of-the-human-blood-brain-barrier-a-pilot-study
#5
Sadhana Jackson, Richard T George, Martin A Lodge, Anna Piotrowski, Richard L Wahl, Sachin K Gujar, Stuart A Grossman
Regadenoson is an FDA approved adenosine receptor agonist which increases blood-brain barrier (BBB) permeability in rodents. Regadenoson is used clinically for pharmacologic cardiac stress testing using SPECT or CT imaging agents that do not cross an intact BBB. This study was conducted to determine if standard doses of regadenoson transiently disrupt the human BBB allowing higher concentrations of systemically administered imaging agents to enter the brain. Patients without known intracranial disease undergoing clinically indicated pharmacologic cardiac stress tests were eligible for this study...
March 17, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28299533/clival-paragangliomas-a-report-of-two-cases-involving-the-midline-skull-base-and-review-of-the-literature
#6
Jacob Ruzevick, Eun Kyung Koh, Luis F Gonzalez-Cuyar, Patrick J Cimino, Kristen Moe, Lorena A Wright, Richard Failor, Manuel Ferreira
Head and neck paragangliomas are rare neuroendocrine tumors that arise from paraganglion cells of the parasympathetic nervous system. Paragangliomas arising from the midline skull base have only rarely been reported. Surgery is the mainstay of treatment and adjuvant radiation is often recommended. These tumors can rarely secrete metanephrines and normetanephrines which can complicate operative management. Here we present two cases of clival paragangliomas with unique clinical presentations and review the previous literature on skull base paragangliomas...
March 16, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28293765/rutin-increases-the-cytotoxicity-of-temozolomide-in-glioblastoma-via-autophagy-inhibition
#7
Pingde Zhang, Stella Sun, Ning Li, Amy Suk Wai Ho, Karrie Mei Yee Kiang, Xiaoqin Zhang, Yin Stephen Cheng, Ming Wai Poon, Derek Lee, Jenny Kan Suen Pu, Gilberto Ka Kit Leung
The chemotherapeutic agent temozolomide (TMZ) is widely used in the treatment of glioblastoma multiforme (GBM). Rutin, a citrus flavonoid ecglycoside found in edible plants, has neuroprotective and anticancer activities. This study aimed to investigate the efficacy and the underlying mechanisms of rutin used in combination with TMZ in GBM. In vitro cell viability assay demonstrated that rutin alone had generally low cytotoxic effect, but it enhanced the efficacy of TMZ in a dose-dependent manner. Subcutaneous and orthotopic xenograft studies also showed that tumor volumes were significantly lower in mice receiving combined TMZ/Rutin treatment as compared to TMZ or rutin alone treatment...
March 14, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28293764/immune-checkpoint-inhibition-and-its-relationship-with-hypermutation-phenoytype-as-a-potential-treatment-for-glioblastoma
#8
REVIEW
Manohan Sinnadurai, Kerrie L McDonald
Glioblastoma (GBM) is the most common malignant brain tumour in adults. Current prognosis with standard treatment is poor. Immunotherapy is a new paradigm in tumour management. Specifically, recent advances in the field of immune checkpoint molecules have led to dramatic results in many cancers. Inhibition of one particular, programmed cell death-1 (PD-1) has recently been shown to be highly effective in melanoma and non-small cell lung cancer. There has also been recent data to suggest potential benefit in GBM...
March 14, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28290003/demographics-patterns-of-care-and-survival-in-pediatric-medulloblastoma
#9
Emily V Dressler, Therese A Dolecek, Meng Liu, John L Villano
We evaluated the American College of Surgeon's National Cancer Data Base (NCDB) to describe current hospital-based epidemiologic frequency, survival, and patterns of care of pediatric medulloblastoma. We analyzed NCDB 1998-2011 data on medulloblastoma for children ages 0-19 years using logistic and poisson regression, Kaplan-Meier survival estimates, and Cox proportional hazards models. 3647 cases of medulloblastoma in those aged 0-19 years were identified. Chemotherapy was received by 79 and 74% received radiation, with 65% receiving both therapies...
March 13, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28290002/plasma-and-cerebrospinal-fluid-pharmacokinetics-of-select-chemotherapeutic-agents-following-intranasal-delivery-in-a-non-human-primate-model
#10
James C League-Pascual, Cynthia M Lester-McCully, Shaefali Shandilya, Lukas Ronner, Louis Rodgers, Rafael Cruz, Cody J Peer, William D Figg, Katherine E Warren
The blood-brain barrier (BBB) limits entry of most chemotherapeutic agents into the CNS, resulting in inadequate exposure within CNS tumor tissue. Intranasal administration is a proposed means of delivery that can bypass the BBB, potentially resulting in more effective chemotherapeutic exposure at the tumor site. The objective of this study was to evaluate the feasibility and pharmacokinetics (plasma and CSF) of intranasal delivery using select chemotherapeutic agents in a non-human primate (NHP) model. Three chemotherapeutic agents with known differences in CNS penetration were selected for intranasal administration in a NHP model to determine proof of principle of CNS delivery, assess tolerability and feasibility, and to evaluate whether certain drug characteristics were associated with increased CNS exposure...
March 13, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28290001/choroid-plexus-tumors-in-adult-and-pediatric-populations-the-cleveland-clinic-and-university-hospitals-experience
#11
Michal Bahar, Hasan Hashem, Tanya Tekautz, Sarah Worley, Anne Tang, Peter de Blank, Johannes Wolff
Choroid plexus tumors (CPT) are rare neoplasms accounting for 1-4% of all pediatric brain tumors. They are divided into choroid plexus papilloma (CPP), atypical choroid plexus papilloma (APP) and choroid plexus carcinoma (CPC). CPTs are known to primarily affect children less than 2 years of age. Gross total resection is the most important predictor of survival especially in CPC. Although small case series have been published, limited clinical data are available to describe treatment and outcome of CPTs. More clinical data would be necessary to complete the picture, particularly in populations that are not age limited...
March 13, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28290000/glioblastoma-recurrence-progression-and-dissemination-as-a-purely-subdural-gliosarcoma
#12
LETTER
R Michael Meyer, Charles A Miller, Daniel J Coughlin, George Rymarczuk, Nicholas S Szuflita, Michael J Cirivello, Brett J Theeler, Michael S Dirks
No abstract text is available yet for this article.
March 13, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28285334/incidence-of-cns-tumors-in-appalachian-children
#13
Bin Huang, Alice Luo, Eric B Durbin, Ellen Lycan, Thomas Tucker, Quan Chen, Craig Horbinski, John L Villano
Determine whether the risk of astrocytomas in Appalachian children is higher than the national average. We compared the incidence of pediatric brain tumors in Appalachia versus non-Appalachia regions, covering years 2000-2011. The North American Association of Central Cancer Registries (NAACCR) collects population-based data from 55 cancer registries throughout U.S. and Canada. All invasive primary (i.e. non-metastatic tumors), with age at diagnosis 0-19 years old, were included. Nearly 27,000 and 2200 central nervous system (CNS) tumors from non-Appalachia and Appalachia, respectively comprise the cohorts...
March 11, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28283801/serum-amyloid-a1-is-upregulated-in-human-glioblastoma
#14
Franciele Hinterholz Knebel, Miyuki Uno, Thais F Galatro, Luziane Potrich Bellé, Sueli Mieko Oba-Shinjo, Suely Kazue N Marie, Ana Campa
Serum amyloid A1 (SAA1) is a sensitive acute phase reactant primarily produced by the liver in response to acute inflammation. We have recently shown that SAA affects proliferation, migration, and invasion of glioblastoma cell lines, which suggest its participation in the malignant process. Consistently, levels of SAA have been used as a non-invasive biomarker for the prognosis of many cancers. In this study, we aimed to investigate SAA serum levels and expression of SAA genes in human astrocytomas tissues...
March 11, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28283800/blocking-cox-2-induces-apoptosis-and-inhibits-cell-proliferation-via-the-akt-survivin-and-akt-id3-pathway-in-low-grade-glioma
#15
Aya Sato, Yoshifumi Mizobuchi, Kohei Nakajima, Kenji Shono, Toshitaka Fujihara, Teruyoshi Kageji, Keiko Kitazato, Kazuhito Matsuzaki, Hideo Mure, Kazuyuki Kuwayama, Akiko Sumi, Hideyuki Saya, Oltea Sampetrean, Shinji Nagahirao
Approximately half of surgically-treated patients with low-grade-glioma (LGG) suffer recurrence or metastasis. Currently there is no effective drug treatment. While the selective COX-2 inhibitor celecoxib showed anti-neoplastic activity against several malignant tumors, its effects against LGG remain to be elucidated. Ours is the first report that the expression level of COX-2 in brain tissue samples from patients with LGG and in LGG cell lines is higher than in the non-neoplastic region and in normal brain cells...
March 10, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28281029/erratum-to-laptm4b-35-is-a-novel-prognostic-factor-for-glioblastoma
#16
Xiaoshu Dong, Kaoru Tamura, Daisuke Kobayashi, Noboru Ando, Kazutaka Sumita, Taketoshi Maehara
No abstract text is available yet for this article.
March 9, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28275886/comparing-available-criteria-for-measuring-brain-metastasis-response-to-immunotherapy
#17
Jack M Qian, Amit Mahajan, James B Yu, A John Tsiouris, Sarah B Goldberg, Harriet M Kluger, Veronica L S Chiang
The response assessment in neuro-oncology (RANO) working group recently proposed standardized response criteria for brain metastases (RANO-BM). We sought to compare RANO-BM to other criteria in an ongoing brain metastasis trial. The first 36 patients enrolled on NCT02085070, an ongoing trial of pembrolizumab for patients with untreated brain metastases, were included in this analysis. As RANO-BM had not been proposed when the protocol was written, response on trial was assessed using an institutional modification of RECIST 1...
March 8, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28271282/characterization-of-the-peripheral-neuropathy-associated-with-brentuximab-vedotin-treatment-of-mycosis-fungoides-and-s%C3%A3-zary-syndrome
#18
Zachary A Corbin, Annie Nguyen-Lin, Shufeng Li, Ziba Rahbar, Mahkam Tavallaee, Hannes Vogel, Katrin A Salva, Gary S Wood, Youn H Kim, Seema Nagpal
Chemotherapy-induced peripheral neuropathy (CIPN) is common, frequently limits chemotherapy dosing, and negatively impacts quality of life. The National Cancer Institute Common Toxicity Criteria for Adverse Events (CTCAE), version 4.0, and the Total Neuropathy Score clinical version (TNSc) are both validated scores to quantify peripheral neuropathy (PN), with the TNSc being more sensitive to clinical changes. Mycosis fungoides and Sézary syndrome (MF/SS) are characterized by a chronic course, where current therapies are generally non-curative and treatment toxicities have the potential for significant lasting effects...
March 7, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28271281/the-role-of-radiation-in-treating-glioblastoma-here-to-stay
#19
REVIEW
Christopher D Corso, Ranjit S Bindra, Minesh P Mehta
Despite numerous efforts over the past several decades, few therapeutic breakthroughs in the treatment of GBM have been realized, and even these have yielded only incrementally modest gains. Radiotherapy remains a crucial component in the management of this disease. In this review, the historical basis for inclusion of radiotherapy as part of the therapeutic regimen for GBM is examined. Additionally, an overview of the evidence supporting the modern role of radiotherapy is provided along with a discussion of standard and emerging combined modality therapies...
March 7, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28265824/relationship-between-magnetic-resonance-imaging-characteristics-and-plasmatic-levels-of-mmp2-and-mmp9-in-patients-with-recurrent-high-grade-gliomas-treated-by-bevacizumab-and-irinotecan
#20
Patrizia Farina, Emeline Tabouret, Pierre Lehmann, Maryline Barrie, Gregorio Petrirena, Chantal Campello, Celine Boucard, Thomas Graillon, Nadine Girard, Olivier Chinot
Matrix metalloproteases MMP2 and MMP9 are involved in cancer angiogenesis and invasion. We recently demonstrated that plasma MMP2 and MMP9 levels could both predict response to bevacizumab in patients with recurrent high-grade glioma (HGG). We examined the potential relationship between MMP2/MMP9 plasma levels and glioma imaging characteristics. In this retrospective, monocentric study, MRI before bevacizumab administration for HGG patients was independently analyzed for contrast enhancement (CE) and FLAIR sequences...
March 6, 2017: Journal of Neuro-oncology
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