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https://www.readbyqxmd.com/read/29139095/local-alkylating-chemotherapy-applied-immediately-after-5-ala-guided-resection-of-glioblastoma-does-not-provide-additional-benefit
#1
William Sage, Mathew Guilfoyle, Catriona Luney, Adam Young, Rohitashwa Sinha, Donatella Sgubin, Joseph H McAbee, Ruichong Ma, Sarah Jefferies, Rajesh Jena, Fiona Harris, Kieren Allinson, Tomasz Matys, Wendi Qian, Thomas Santarius, Stephen Price, Colin Watts
Grade IV glioma is the most common and aggressive primary brain tumour. Gross total resection with 5-aminolevulinic acid (5-ALA) guided surgery combined with local chemotherapy (carmustine wafers) is an attractive treatment strategy in these patients. No previous studies have examined the benefit carmustine wafers in a treatment programme of 5-ALA guided resection followed by a temozolomide-based chemoradiotherapy protocol. The objective of this study was to examine the benefit of carmustine wafers on survival in patients undergoing 5-ALA guided resection...
November 14, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29138748/identifying-novel-glioma-associated-noncoding-rnas-by-their-expression-profiles
#2
Alenka Matjašič, Mojca Tajnik, Emanuela Boštjančič, Mara Popović, Boštjan Matos, Damjan Glavač
Long noncoding RNAs (lncRNAs) and microRNAs (miRNAs) play a significant role in cancer development as regulators of protein-coding genes. Their dysregulation was in some extent already associated with glioma, the most aggressive primary brain tumours in adults. The correct diagnosis and treatment selection due to high tumour heterogeneity might be difficult and inadequate, resulting in poor prognosis. Studies of expression patterns of noncoding RNAs (ncRNAs) could provide useful insight in glioma molecular development...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/29130549/concomitant-idh-wildtype-glioblastoma-and-idh1-mutant-anaplastic-astrocytoma-in-a-patient-with-constitutional-mismatch-repair-deficiency-syndrome
#3
Francesca Galuppini, Enrico Opocher, Uri Tabori, Isabella Mammi, Melissa Edwards, Britany Campbell, Jacalyn Kelly, Alessandra Viel, Michele Quaia, Francesca Rivieri, Domenico D'Avella, Antonella Arcella, Felice Giangaspero, Matteo Fassan, Marina Paola Gardiman
Constitutional mismatch repair deficiency (CMMRD) is a rare and often under-recognized tumour predisposition syndrome, presenting with both extracranial and malignant brain tumours that occur in children and/or young adults [1]. The genetic defects underlying this disease are biallelic germline mutations in one of the DNA mismatch repair (MMR) genes leading to a constitutional DNA repair defect that causes a cancer predisposition syndrome with early onset [2]. This mechanism is different from Lynch syndrome (LS) where a heterozygous germline loss-of-function mutation is observed and the patients are more prone to develop colon and genitourinary cancers as adults [1]...
November 12, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/29128708/childhood-brain-tumours-early-infections-and-immune-stimulation-a-pooled-analysis-of-the-escale-and-estelle-case-control-studies-sfce-france
#4
Judith E Lupatsch, Helen D Bailey, Brigitte Lacour, Christelle Dufour, Anne-Isabelle Bertozzi, Pierre Leblond, Cécile Faure-Conter, Isabelle Pellier, Claire Freycon, François Doz, Stéphanie Puget, Stéphane Ducassou, Laurent Orsi, Jacqueline Clavel
BACKGROUND: Few studies have investigated whether early infections and factors potentially related to early immune stimulation might be involved in the aetiology of childhood brain tumours (CBT). In this study, we investigated the associations between CBT with early day-care attendance, history of early common infections, atopic conditions (asthma/wheezing, eczema, allergic rhinitis), early farm residence/visits and contact with animals. METHODS: We pooled data from two nationwide French case-control studies, the ESCALE and ESTELLE studies...
November 9, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/29127351/pdgf-family-expression-in-glioblastoma-multiforme-data-compilation-from-ivy-glioblastoma-atlas-project-database
#5
Isabella Gomes Cantanhede, João Ricardo Mendes de Oliveira
Glioblastoma Multiforme (GBM) is the most frequent and lethal primary brain cancer. Due to its therapeutic resistance and aggressiveness, its clinical management is challenging. Platelet-derived Growth Factor (PDGF) genes have been enrolled as drivers of this tumour progression as well as potential therapeutic targets. As detailed understanding of the expression pattern of PDGF system in the context of GBM intra- and intertumoral heterogeneity is lacking in the literature, this study aims at characterising PDGF expression in different histologically-defined GBM regions as well as investigating correlation of these genes expression with parameters related to poor prognosis...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29124419/a-systematic-review-to-assess-the-management-of-patients-with-cerebral-metastases-secondary-to-colorectal-cancer
#6
REVIEW
I L Silva, M Iskandarani, A Hotouras, J Murphy, C Bhan, B Adada, S D Wexner
BACKGROUND: Colorectal cancer (CRC) rarely metastasizes to the brain. The incidence of cerebral metastases (CM) is estimated between 1 and 3%. Given the improved survival from advanced CRC as a result of surgical and oncological advances, it is anticipated that the incidence of patients with CM from CRC will rise over the next few years. The aim of this article was to systematically review the treatment options and outcome of patients with CM from CRC. METHODS: PubMed and Medline databases were examined using the search words or MESH headings "colorectal" "cancer/carcinoma/adenocarcinoma", "cerebral"/"brain" and "metastases/metastasis"...
November 9, 2017: Techniques in Coloproctology
https://www.readbyqxmd.com/read/29118112/the-biology-and-mathematical-modelling-of-glioma-invasion-a-review
#7
REVIEW
J C L Alfonso, K Talkenberger, M Seifert, B Klink, A Hawkins-Daarud, K R Swanson, H Hatzikirou, A Deutsch
Adult gliomas are aggressive brain tumours associated with low patient survival rates and limited life expectancy. The most important hallmark of this type of tumour is its invasive behaviour, characterized by a markedly phenotypic plasticity, infiltrative tumour morphologies and the ability of malignant progression from low- to high-grade tumour types. Indeed, the widespread infiltration of healthy brain tissue by glioma cells is largely responsible for poor prognosis and the difficulty of finding curative therapies...
November 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/29113931/neurobiological-mechanisms-of-chemotherapy-induced-cognitive-impairment-in-a-transgenic-model-of-breast-cancer
#8
Gordon Winocur, Hal Berman, Mary Nguyen, Malcolm A Binns, Mark Henkelman, Matthijs van Eede, Micheline Piquette-Miller, Melanie J Sekeres, J Martin Wojtowicz, Johnson Yu, Haibo Zhang, Ian F Tannock
Animal studies have reinforced clinical reports of cognitive impairment in cancer survivors following chemotherapy but, until now, all pre-clinical research in this area has been conducted on normal rodents. The present study investigated the effects of chemotherapy on cognition and underlying biological mechanisms in the FVB/N-Tg (MMTV-neu) 202 Mul/J mouse, a well-characterized transgenic model of breast cancer that has similarities to the tumourigenesis which occurs in humans. Tumour-bearing and control mice received three weekly injections of a combination of methotrexate + 5-fluorouracil, or an equal volume of saline...
November 4, 2017: Neuroscience
https://www.readbyqxmd.com/read/29113105/the-molecular-and-phenotypic-basis-of-the-glioma-invasive-perivascular-niche
#9
REVIEW
Mohammed Diksin, Stuart J Smith, Ruman Rahman
Gliomas are devastating brain cancers that have poor prognostic outcomes for their patients. Short overall patient survival is due to a lack of durable, efficacious treatment options. Such therapeutic difficulties exist, in part, due to several glioma survival adaptations and mechanisms, which allow glioma cells to repurpose paracrine signalling pathways and ion channels within discreet microenvironments. These Darwinian adaptations facilitate invasion into brain parenchyma and perivascular space or promote evasion from anti-cancer defence mechanisms...
November 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29112977/initial-clinical-experience-with-dual-layer-detector-spectral-ct-in-patients-with-acute-intracerebral-haemorrhage-a-single-centre-pilot-study
#10
Soo Buem Cho, Hye Jin Baek, Kyeong Hwa Ryu, Jin Il Moon, Bo Hwa Choi, Sung Eun Park, Kyungsoo Bae, Kyung Nyeo Jeon, Dong Wook Kim
PURPOSE: The purpose of this study was to investigate the clinical feasibility of spectral analyses using dual-layer detector spectral computed tomography (CT) in acute intracerebral haemorrhage (ICH). MATERIAL AND METHODS: We retrospectively reviewed patients with acute ICH who underwent CT angiography on a dual-layer detector spectral CT scanner. A spectral data analysis was performed to detect contrast enhancement in or adjacent to acute ICH by using spectral image reconstructions including monoenergetic (MonoE), virtual noncontrast (VNC), and iodine overlay fusion images...
2017: PloS One
https://www.readbyqxmd.com/read/29105282/escitalopram-oxalate-induces-apoptosis-in-u-87mg-cells-and-autophagy-in-gbm8401-cells
#11
Vincent Chin-Hung Chen, Yi-Hsien Hsieh, Li-Jeng Chen, Tsai-Ching Hsu, Bor-Show Tzang
Glioblastoma multiforme (GBM) is recognized as a most aggressive brain cancer with the worst prognosis and survival time. Owing to the anatomic location of gliomas, surgically removing the tumour is very difficult and avoiding damage to vital brain regions during radiotherapy is impossible. Therefore, therapeutic strategies for malignant glioma must urgently be improved. Recent studies have demonstrated that selective serotonin reuptake inhibitors (SSRIs) have cytotoxic effect on certain cancers. Considering as a more superior SSRI, escitalopram oxalate exhibits favourable tolerability and causes generally mild and temporary adverse events...
November 3, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29105281/semi-autonomous-image-guided-brain-tumour-resection-using-an-integrated-robotic-system-a-bench-top-study
#12
Danying Hu, Yuanzheng Gong, Eric J Seibel, Laligam N Sekhar, Blake Hannaford
BACKGROUND: Complete brain tumour resection is an extremely critical factor for patients' survival rate and long-term quality of life. This paper introduces a prototype medical robotic system that aims to automatically detect and clean up brain tumour residues after the removal of tumour bulk through conventional surgery. METHODS: We focus on the development of an integrated surgical robotic system for image-guided robotic brain surgery. The Behavior Tree framework is explored to coordinate cross-platform medical subtasks...
November 3, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/29104614/proton-radiobiology-and-its-clinical-implications
#13
REVIEW
Bleddyn Jones
Denser ionisation clustering and complex DNA damage in proton Bragg peaks far exceeds that seen with conventional X-rays. This results in more efficient cell sterilisation, quantified by the relative biological effectiveness (RBE). Currently, a 1.1 RBE is used to determine the clinical proton doses by dividing the usual X-rays dose by this amount. This number, derived from short-term experiments, has been criticised as being irrelevant to late normal tissue (NT) effects following radiotherapy and included many control irradiations using lower voltage X-rays (with elevated RBE values) than those used in the clinic...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/29104289/inflammatory-cns-disease-caused-by-immune-checkpoint-inhibitors-status-and-perspectives
#14
REVIEW
Lidia M Yshii, Reinhard Hohlfeld, Roland S Liblau
Cancer treatment strategies based on immune stimulation have recently entered the clinical arena, with unprecedented success. Immune checkpoint inhibitors (ICIs) work by indiscriminately promoting immune responses, which target tumour-associated antigens or tumour-specific mutations. However, the augmented immune response, most notably the T cell response, can cause either direct neurotoxicity or, more commonly, indirect neurotoxic effects through systemic or local inflammatory mechanisms or autoimmune mechanisms...
November 6, 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/29103666/identification-of-single-nucleotide-polymorphisms-of-the-pi3k-akt-mtor-pathway-as-a-risk-factor-of-central-nervous-system-metastasis-in-metastatic-breast-cancer
#15
Emilie Le Rhun, Nicolas Bertrand, Aurélie Dumont, Emmanuelle Tresch, Marie-Cécile Le Deley, Audrey Mailliez, Matthias Preusser, Michael Weller, Françoise Revillion, Jacques Bonneterre
INTRODUCTION: The PI3K-AKT-mTOR pathway may be involved in the development of central nervous system (CNS) metastasis from breast cancer. Accordingly, herein we explored whether single nucleotide polymorphisms (SNPs) of this pathway are associated with altered risk of CNS metastasis formation in metastatic breast cancer patients. METHODS: The GENEOM study (NCT00959556) included blood sample collection from breast cancer patients treated in the neoadjuvant, adjuvant or metastatic setting...
November 2, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29099032/disparities-in-brain-cancer-in-the-united-states-a-literature-review-of-gliomas
#16
REVIEW
Dharam Persaud-Sharma, Joseph Burns, Jeran Trangle, Sabyasachi Moulik
In the human body, the central regulatory system of homeostasis is maintained by the brain. Its complexity is mesmerizing and many of its functions are largely uncharted. Unfortunately, its functionality is often impaired through neoplastic growths, like gliomas, which are devastating to patients and their families. Annually, gliomas are the most common primary brain tumours affecting over 20,000 people in the United States. However, despite their status as the third most common cause of cancer related death for individuals between ages 20 and 39, the aetiology of gliomas remains unknown...
July 25, 2017: Medical Sciences: Open Access Journal
https://www.readbyqxmd.com/read/29098660/therapeutic-potential-of-ursolic-acid-to-manage-neurodegenerative-and-psychiatric-diseases
#17
Ana B Ramos-Hryb, Francis L Pazini, Manuella P Kaster, Ana Lúcia S Rodrigues
Ursolic acid is a pentacyclic triterpenoid found in several plants. Despite its initial use as a pharmacologically inactive emulsifier in pharmaceutical, cosmetic and food industries, several biological activities have been reported for this compound so far, including anti-tumoural, anti-diabetic, cardioprotective and hepatoprotective properties. The biological effects of ursolic acid have been evaluated in vitro, in different cell types and against several toxic insults (i.e. 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine, amyloid-β peptides, kainic acid and others); in animal models of brain-related disorders (Alzheimer disease, Parkinson disease, depression, traumatic brain injury) and ageing; and in clinical studies with cancer patients and for muscle atrophy...
November 2, 2017: CNS Drugs
https://www.readbyqxmd.com/read/29098416/neurological-update-gliomas-and-other-primary-brain-tumours-in-adults
#18
Sebastian Brandner, Zane Jaunmuktane
The emerging understanding of molecular changes in a wide range of brain tumours has led to a significant shift in how these tumours are diagnosed, managed and treated. This article will provide a hands-on overview of the relevant biomarkers and their association with newly defined biological tumour entities.
November 2, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/29096633/cerebral-malaria-induces-electrophysiological-and-neurochemical-impairment-in-mice-retinal-tissue-possible-effect-on-glutathione-and-glutamatergic-system
#19
Karen R H M Oliveira, Nayara Kauffmann, Luana K R Leão, Adelaide C F Passos, Fernando A F Rocha, Anderson M Herculano, José L M do Nascimento
BACKGROUND: Cerebral malaria (CM) is a severe complication resulting from Plasmodium falciparum infection. This condition has usually been associated with cognitive, behavioural and motor dysfunctions, being the retinopathy the most serious consequence resulting from the disease. The pathophysiological mechanisms underlying this complication remain incompletely understood. Several experimental models of CM have already been developed in order to clarify those mechanisms related to this syndrome...
November 2, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29095877/volumetric-brain-tumour-detection-from-mri-using-visual-saliency
#20
Somosmita Mitra, Subhashis Banerjee, Yoichi Hayashi
Medical image processing has become a major player in the world of automatic tumour region detection and is tantamount to the incipient stages of computer aided design. Saliency detection is a crucial application of medical image processing, and serves in its potential aid to medical practitioners by making the affected area stand out in the foreground from the rest of the background image. The algorithm developed here is a new approach to the detection of saliency in a three dimensional multi channel MR image sequence for the glioblastoma multiforme (a form of malignant brain tumour)...
2017: PloS One
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