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https://www.readbyqxmd.com/read/28413540/intraventricular-glioblastoma-multiforme-mimicking-meningioma-and-review-of-the-literature
#1
Ashis Patnaik, Sudhansu S Mishra, Satya B Senapati
Glioblastoma multiforme (GBM) is the most common primary brain tumor and is usually found in aged persons in the cerebral hemispheres particularly the frontotemporal region. But intraventricular GBM is rare and only few cases have been reported in the literature. We report a case of a 27-year-old man who presented with headache, vision loss in both eyes, and other signs and symptoms of increased intracranial pressure. Computed tomography and magnetic resonance imaging showed an intraventricular, well-circumscribed lesion with homogeneous enhancement of contrast, suggestive of meningioma that is more common than GBM in this location...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28215428/glioblastoma-presenting-as-spontaneous-intracranial-haemorrhage-case-report-and-review-of-the-literature
#2
REVIEW
Danica M Joseph, Anthea H O'Neill, Ronil V Chandra, Leon T Lai
Glioblastoma (GB) classically presents with symptoms of raised intracranial pressure and gradual progressive neurological deficits. An acute presentation, with intracerebral haemorrhage (ICH) and rapid clinical deterioration, occurs infrequently. Contemporary imaging modalities do not reliably reflect underlying mass lesions in parenchymal brain haemorrhage at first presentation. We report a delayed diagnosis of GB in a 21-year-old patient presenting with spontaneous ICH and a negative initial neurovascular workup...
February 15, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28153049/longitudinal-analysis-of-treatment-induced-genomic-alterations-in-gliomas
#3
E Zeynep Erson-Omay, Octavian Henegariu, S Bülent Omay, Akdes Serin Harmancı, Mark W Youngblood, Ketu Mishra-Gorur, Jie Li, Koray Özduman, Geneive Carrión-Grant, Victoria E Clark, Caner Çağlar, Mehmet Bakırcıoğlu, M Necmettin Pamir, Viviane Tabar, Alexander O Vortmeyer, Kaya Bilguvar, Katsuhito Yasuno, Lisa M DeAngelis, Joachim M Baehring, Jennifer Moliterno, Murat Günel
BACKGROUND: Glioblastoma multiforme (GBM) constitutes nearly half of all malignant brain tumors and has a median survival of 15 months. The standard treatment for these lesions includes maximal resection, radiotherapy, and chemotherapy; however, individual tumors display immense variability in their response to these approaches. Genomic techniques such as whole-exome sequencing (WES) provide an opportunity to understand the molecular basis of this variability. METHODS: Here, we report WES-guided treatment of a patient with a primary GBM and two subsequent recurrences, demonstrating the dynamic nature of treatment-induced molecular changes and their implications for clinical decision-making...
February 2, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28109858/radiologic-dilemma-in-an-extra-axial-petroclival-lesion-low-grade-versus-high-grade
#4
Madhivanan Karthigeyan, Chirag Kamal Ahuja, Debjyoti Chatterjee, Pravin Salunke
BACKGROUND: Radiologic differentiation between a low-grade and high-grade lesion is crucial when deciding extent of resection and prognostication. Occasionally, imaging features can be confusing between the 2 lesions. We report a case that presented such a radiologic dilemma. The lesion appeared benign and extra-axial on routine magnetic resonance imaging sequences. However, subtle clinical and imaging clues pointed to a high-grade lesion. CASE DESCRIPTION: A 27-year-old woman presented with multiple cranial nerve palsies, gait ataxia, and features of increased intracranial pressure...
April 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27980285/convection-enhanced-delivery-of-therapeutics-for-malignant-gliomas
#5
Ryuta Saito, Teiji Tominaga
Convection-enhanced delivery (CED) circumvents the blood-brain barrier by delivering agents directly into the tumor and surrounding parenchyma. CED can achieve large volumes of distribution by continuous positive-pressure infusion. Although promising as an effective drug delivery method in concept, the administration of therapeutic agents via CED is not without challenges. Limitations of distribution remain a problem in large brains, such as those of humans. Accurate and consistent delivery of an agent is another challenge associated with CED...
January 15, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/27927130/p311-accelerates-skin-wound-reepithelialization-by-promoting-epidermal-stem-cell-migration-through-rhoa-and-rac1-activation
#6
Zhihui Yao, Haisheng Li, Weifeng He, Sisi Yang, Xiaorong Zhang, Rixing Zhan, Rui Xu, Jianglin Tan, Junyi Zhou, Jun Wu, Gaoxing Luo
P311 is a newly discovered functional gene, and it has been proved to play a key role in blood pressure homeostasis, glioblastoma invasion, renal fibrosis, hypertrophic scar formation, and others. In this study, for the first time, we found that P311 could enhance reepithelialization during wound healing via promoting epidermal stem cell (EpSC) migration through Rho GTPases. P311 expression was highly increased in neo-epidermal cells during human and mouse skin wound healing, and P311was co-localized with 5-bromo-2'-deoxyuridine positive label-retaining cells in a mouse superficial second-degree burn wound model...
March 15, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/27857864/key-perspectives-on-auditory-outcomes-following-radiosurgery-for-vestibular-schwannoma-tumor-treating-fields-for-glioblastoma-and-a-proposed-myelopathy-score-for-cervical-decompression-surgery-intracranial-pressure-monitoring-in-diffuse-traumatic-brain-injury
#7
https://www.readbyqxmd.com/read/27854111/the-risk-of-hypotension-and-seizures-in-patients-receiving-prophylactic-anti-epileptic-drugs-for-supratentorial-craniotomy
#8
Julius Höhne, Karl M Schebesch, Christian Ott, Alexander Brawanski, Max Lange
BACKGROUND: Perioperative seizure prophylaxis with antiepileptic drugs (AED) has been advocated in patients undergoing supratentorial craniotomy. The practice remains controversial. The reasoning presupposes that the possibility of an adverse drug reaction from the AED is lower than the probability of harm from a seizure. Even short periods of hypotension during the operation can lead to acute kidney and myocardial injury. We retrospectively evaluated cardiovascular effects and tolerability of Levetiracetam (LEV) alone, LEV and Lacosamid (LCM) as compared to Phenytoin (PHT)...
November 17, 2016: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/27834803/advance-care-planning-in-glioblastoma-patients
#9
REVIEW
Lara Fritz, Linda Dirven, Jaap C Reijneveld, Johan A F Koekkoek, Anne M Stiggelbout, H Roeline W Pasman, Martin J B Taphoorn
Despite multimodal treatment with surgery, radiotherapy and chemotherapy, glioblastoma is an incurable disease with a poor prognosis. During the disease course, glioblastoma patients may experience progressive neurological deficits, symptoms of increased intracranial pressure such as drowsiness and headache, incontinence, seizures and progressive cognitive dysfunction. These patients not only have cancer, but also a progressive brain disease. This may seriously interfere with their ability to make their own decisions regarding treatment...
November 8, 2016: Cancers
https://www.readbyqxmd.com/read/27576875/natural-course-and-prognosis-of-anaplastic-gangliogliomas-a-multicenter-retrospective-study-of-43-cases-from-the-french-brain-tumor-database
#10
Louis-Marie Terrier, Luc Bauchet, Valérie Rigau, Aymeric Amelot, Sonia Zouaoui, Isabelle Filipiak, Agnès Caille, Fabien Almairac, Marie-Hélène Aubriot-Lorton, Anne-Marie Bergemer-Fouquet, Eric Bord, Philippe Cornu, Alain Czorny, Phong Dam Hieu, Bertrand Debono, Marie-Bernadette Delisle, Evelyne Emery, Walid Farah, Guillaume Gauchotte, Catherine Godfraind, Jacques Guyotat, Bernard Irthum, Kevin Janot, Pierre-Jean Le Reste, Dominique Liguoro, Hugues Loiseau, Guillaume Lot, Vincent Lubrano, Emmanuel Mandonnet, Philippe Menei, Philippe Metellus, Serge Milin, Bertrand Muckenstrum, Pierre-Hugues Roche, Audrey Rousseau, Emmanuelle Uro-Coste, Anne Vital, Jimmy Voirin, Michel Wager, Marc Zanello, Patrick François, Stéphane Velut, Pascale Varlet, Dominique Figarella-Branger, Johan Pallud, Ilyess Zemmoura
BACKGROUND: Anaplastic gangliogliomas (GGGs) are rare tumors whose natural history is poorly documented. We aimed to define their clinical and imaging features and to identify prognostic factors. METHODS: Consecutive cases of anaplastic GGGs in adults prospectively entered into the French Brain Tumor Database between March 2004 and April 2014 were screened. After diagnosis was confirmed by pathological review, clinical, imaging, therapeutic, and outcome data were collected retrospectively...
August 30, 2016: Neuro-oncology
https://www.readbyqxmd.com/read/27513787/a-primary-cerebellar-glioblastoma-multiforme-mimicking-vestibular-schwannoma
#11
Shuxia Gao, Xiaogang Liu, Pengfei Cheng, Xunhui Yuan, Jianyi Niu, Yun'an Bai, Bin Xi
Cerebellar glioblastoma multiforme (cGBM) is rare in adults, accounting for <1% of all patients with glioblastoma multiforme (GBM). The accurate diagnosis of cGBM is important for establishing a suitable therapeutic schedule. However, the diagnosis of cerebellar GBM is not usually suspected preoperatively because of its rarity. Generally, patients with cGBMs typically presented with symptoms of raised intracranial pressure, and infrequently cerebellar symptoms such as gait ataxia and disequilibrium. Nevertheless, the authors reported a cGMB patient, with his clinical presentations and imaging characteristics mimicking a vestibular schwannoma...
October 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27487344/glioblastoma-multiforme-with-hypodipsic-hypernatremia-in-a-seven-month-old-golden-retriever
#12
Stephanie Engel, Karen Marie Hilling, Travis Kuder Meuten, Chad Brendan Frank, Angela J Marolf
Primary hypodipsic hypernatremia is a rarely reported disease in dogs. Reported underlying causes associated with this disease in dogs include congenital malformations, encephalitis, intracranial neoplasia, and pressure atrophy of the hypothalamus secondary to hydrocephalus. The dog in this report had an infiltrative neoplastic disorder, likely causing damage to the hypothalamic osmoreceptors responsible for the thirst generation. The neoplastic process was identified histopathologically as glioblastoma multiforme, an unusual tumor to occur in a dog this young...
September 2016: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/27420584/thymoquinone-attenuates-monocrotaline-induced-pulmonary-artery-hypertension-via-inhibiting-pulmonary-arterial-remodeling-in-rats
#13
Ning Zhu, Xuyong Zhao, Yijia Xiang, Shiyong Ye, Jie Huang, Wuming Hu, Linchun Lv, Chunlai Zeng
BACKGROUND: Pulmonary artery remodeling induced by excess proliferation, migration and apoptosis resistance of pulmonary arterial smooth muscle cells (PASMCs) is a key component in pulmonary artery hypertension (PAH). Thymoquinone (TQ) triggers cancer cells apoptosis through multiple mechanisms. In addition, TQ inhibits migration of human nonsmall-cell lung cancer cells and human glioblastoma cells. OBJECTIVES: In the current study, we investigated effects of TQ on MCT-induced PAH in rats and its underlying mechanisms...
October 15, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27406589/a-randomized-phase-ii-trial-of-standard-dose-bevacizumab-versus-low-dose-bevacizumab-plus-lomustine-ccnu-in-adults-with-recurrent-glioblastoma
#14
Shiao-Pei Weathers, Xiaosi Han, Diane D Liu, Charles A Conrad, Mark R Gilbert, Monica E Loghin, Barbara J O'Brien, Marta Penas-Prado, Vinay K Puduvalli, Ivo Tremont-Lukats, Rivka R Colen, W K Alfred Yung, John F de Groot
Antiangiogenic therapy can rapidly reduce vascular permeability and cerebral edema but high doses of bevacizumab may induce selective pressure to promote resistance. This trial evaluated the efficacy of low dose bevacizumab in combination with lomustine (CCNU) compared to standard dose bevacizumab in patients with recurrent glioblastoma. Patients (N = 71) with recurrent glioblastoma who previously received radiation and temozolomide were randomly assigned 1:1 to receive bevacizumab monotherapy (10 mg/kg) or low dose bevacizumab (5 mg/kg) in combination with lomustine (90 mg/m(2))...
September 2016: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/27338741/urotensin-ii-receptor-a-double-identity-receptor-involved-in-vasoconstriction-and-in-the-development-of-digestive-tract-cancers-and-other-tumors
#15
Alessandro Federico, Silvia Zappavigna, Marcello Dallio, Gabriella Misso, Francesco Merlino, Carmela Loguercio, Ettore Novellino, Paolo Grieco, Michele Caraglia
Urotensin II and Urotensin-II receptors are important molecular factors that regulate vasoconstriction and all the diseases that are linked to abnormalities in blood pressure regulation (i.e.: hypertension, kidney diseases, cirrhosis etc.). Recently, Urotensin II and its receptor have also been involved in metabolic syndrome, diabetes and schizophrenia. Recent strong findings suggest that Urotensin II and its receptor are involved in the onset and development of different epithelial cancers. Indeed, it was reported that cell growth, motility and invasion in human breast, bladder, prostate, colorectal and glioblastoma cancer cells were regulated by Urotensin II and Urotensin-II receptor axis...
2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/27306666/clinical-trial-of-blood-brain-barrier-disruption-by-pulsed-ultrasound
#16
Alexandre Carpentier, Michael Canney, Alexandre Vignot, Vincent Reina, Kevin Beccaria, Catherine Horodyckid, Carine Karachi, Delphine Leclercq, Cyril Lafon, Jean-Yves Chapelon, Laurent Capelle, Philippe Cornu, Marc Sanson, Khê Hoang-Xuan, Jean-Yves Delattre, Ahmed Idbaih
The blood-brain barrier (BBB) limits the delivery of systemically administered drugs to the brain. Methods to circumvent the BBB have been developed, but none are used in standard clinical practice. The lack of adoption of existing methods is due to procedural invasiveness, serious adverse effects, and the complications associated with performing such techniques coincident with repeated drug administration, which is customary in chemotherapeutic protocols. Pulsed ultrasound, a method for disrupting the BBB, was shown to effectively increase drug concentrations and to slow tumor growth in preclinical studies...
June 15, 2016: Science Translational Medicine
https://www.readbyqxmd.com/read/27267628/synergistic-targeting-tenascin-c-and-neuropilin-1-for-specific-penetration-of-nanoparticles-for-anti-glioblastoma-treatment
#17
Ting Kang, Qianqian Zhu, Di Jiang, Xingye Feng, Jingxian Feng, Tianze Jiang, Jianhui Yao, Yixian Jing, Qingxiang Song, Xinguo Jiang, Xiaoling Gao, Jun Chen
The pathological and physiological barriers of glioblastoma multiforme (GBM) lead to insufficient extravasation and penetration of nano-sized therapeutics. As the main driver of interstitial fluid pressure-related drug efflux, the aberrant extracellular matrix (ECM) appears to be a valuable target that plays a crucial role in forming pathological barriers of GBM. Herein, a new Ft peptide was synthesized by coupling FHK and tLyp-1 sequence together via a cysteine to synergistically target glioma-associated tenascin C (extracellular matrix component) and neuropilin-1 on neovasculature and glioma cells to enable specific penetration of nanoparticles for anti-glioblastoma treatment...
September 2016: Biomaterials
https://www.readbyqxmd.com/read/27046324/monte-carlo-model-development-for-evaluation-of-current-clinical-target-volume-definition-for-heterogeneous-and-hypoxic-glioblastoma
#18
L Moghaddasi, E Bezak, W Harriss-Phillips
Clinical target volume (CTV) determination may be complex and subjective. In this work a microscopic-scale tumour model was developed to evaluate current CTV practices in glioblastoma multiforme (GBM) external radiotherapy. Previously, a Geant4 cell-based dosimetry model was developed to calculate the dose deposited in individual GBM cells. Microscopic extension probability (MEP) models were then developed using Matlab-2012a. The results of the cell-based dosimetry model and MEP models were combined to calculate survival fractions (SF) for CTV margins of 2...
May 7, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27013078/falsely-low-values-of-oxygen-saturation-measured-by-pulse-oximetry-in-a-boy-treated-with-chinese-herb-tea
#19
Agnes S Meidert, Alexander Lang, Georg Hennig, Patricia Bernasconi, Aurelia Peraud, Josef Briegel, Tanija K Hüttl
An 8-year-old boy suffering from progressive glioblastoma was scheduled for neurosurgery. Prior to induction of anaesthesia pulse oximetry measured 64 % saturation of oxygen (SpO2). Arterial blood gas analysis revealed normal oxygen saturation and normal oxygen partial pressure. After having ruled out technical problems of pulse oximetry the neurosurgical procedure was halted. Meticulous examination of the child's history and medication did not explain a possible interaction of drugs with pulse oximetry. A Chinese herb tea had been given to the child, but was then stopped on the day of admission...
March 25, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/26898496/google-search-queries-about-neurosurgical-topics-are-they-a-suitable-guide-for-neurosurgeons
#20
Anna C Lawson McLean, Aaron Lawson McLean, Rolf Kalff, Jan Walter
OBJECTIVE: Google is the most popular search engine, with about 100 billion searches per month. Google Trends is an integrated tool that allows users to obtain Google's search popularity statistics from the last decade. Our aim was to evaluate whether Google Trends is a useful tool to assess the public's interest in specific neurosurgical topics. METHODS: We evaluated Google Trends statistics for the neurosurgical search topic areas "hydrocephalus," "spinal stenosis," "concussion," "vestibular schwannoma," and "cerebral arteriovenous malformation...
June 2016: World Neurosurgery
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