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Brain Cancer Research

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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
#1
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/28710339/impact-of-low-dose-ct-screening-on-smoking-cessation-among-high-risk-participants-in-the-uk-lung-cancer-screening-trial
#2
Kate Brain, Ben Carter, Kate J Lifford, Olivia Burke, Anand Devaraj, David R Baldwin, Stephen Duffy, John K Field
BACKGROUND: Smoking cessation was examined among a subset of current smokers who were high-risk participants in the UK Lung Cancer Screening (UKLS) pilot trial of low-dose CT screening. METHODS: High-risk individuals aged 50-75 years who completed baseline questionnaires were randomised to CT screening (intervention) or usual care (no screening control). Smoking habit was determined at baseline using self-report. Smokers were asked whether they had quit smoking since joining UKLS at short-term follow-up (2 weeks after baseline scan results or control assignment) and longer-term follow-up (up to 2 years after recruitment)...
July 14, 2017: Thorax
https://www.readbyqxmd.com/read/28706610/a-novel-variant-of-oct4-entitled-oct4b3-is-expressed-in-human-bladder-cancer-and-astrocytoma-cell-lines
#3
Ensieh M Poursani, Majid Mehravar, Bahram Mohammad Soltani, Seyed Javad Mowla, James E Trosko
BACKGROUND: Alternative splicing is an important mechanism that regulates gene expression and function in human cells. OCT4, a crucial pluripotency marker in embryonic stem/carcinoma cells generates several spliced variants in different cell types and cancers. The expression of OCT4 in cancers has been challenged in many studies. The existence of several OCT4 spliced variants and absence of specific discriminating primers is the main reason of this controversy. Therefore, using specific primers and discriminating OCT4 variants from each other might help to reduce these discrepancies in carcinogenesis and stem cell researches...
July 2017: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/28699908/expression-of-protein-kinase-c-gamma-promotes-cell-migration-in-colon-cancer
#4
Catríona M Dowling, Sheri L Hayes, James J Phelan, Mary Clare Cathcart, Stephen P Finn, Brian Mehigan, Paul McCormick, John C Coffey, Jacintha O'Sullivan, Patrick A Kiely
Despite extensive efforts, Protein Kinase Cs (PKCs) have proven to be an intractable target in cancer therapies. Traditionally it was accepted that PKCs act as tumour promoters, however new research suggests that PKCs may play an important role in the suppression of cancer. A challenge in targeting PKCs is the limited data available in patient samples. One of the PKC isozymes, PKC gamma, is thought to be present only in the brain and has been largely neglected in the context of cancer. Analysis of gene expression levels of PKC gamma in patient matched normal and colon cancer tissue samples revealed an up-regulation of the gene in the cancer tissue of 54% of the patients examined...
July 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28694114/epigenetic-dysregulation-of-protocadherins-in-human-disease
#5
REVIEW
Nady El Hajj, Marcus Dittrich, Thomas Haaf
Protocadherins (Pcdhs) are a group of cell-cell adhesion molecules that are highly expressed in the nervous system and have a major function in dendrite development and neural circuit formation. However, the role protocadherins play in human health and disease remains unclear. Several recent studies have associated epigenetic dysregulation of protocadherins with possible implications for disease pathogenesis. In this review, we briefly recap the various epigenetic mechanisms regulating protocadherin genes, particularly the clustered Pcdhs...
July 7, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28684305/emerging-roles-of-protein-kinases-in-microglia-mediated-neuroinflammation
#6
REVIEW
Sun-Hwa Lee, Kyoungho Suk
Neuroinflammation is mediated by resident central nervous system glia, neurons, peripherally derived immune cells, blood-brain barrier, and inflammatory mediators secreted from these cells. Neuroinflammation has been implicated in stroke and neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, multiple sclerosis, and amyotrophic lateral sclerosis. Protein kinases have been one of the most exploited therapeutic targets in the current pharmacological research, especially in studies on cancer and inflammation...
July 3, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28681208/surgical-considerations-in-the-optimal-management-of-patients-with-malignant-brain-tumors
#7
REVIEW
Jaclyn J Renfrow, Roy E Strowd, Adrian W Laxton, Stephen B Tatter, Carol P Geer, Glenn J Lesser
Advances in technology are revolutionizing medicine and the limits of what we can offer to our patients. In neurosurgery, technology continues to reduce morbidity, increase surgical accuracy, facilitate tissue acquisition, and promote novel techniques for prolonging survival in patients with neuro-oncologic disease. Surgery has been the backbone of glioma diagnosis and treatment by providing adequate, high quality material for precise histologic diagnosis, and genomic characterization in the setting of significant intratumoral heterogeneity, thus allowing personalized treatment selection in the clinic...
August 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28679345/considerations-for-developing-chronic-care-system-for-traumatic-brain-injury-based-on-comparisons-of-cancer-survivorship-and-diabetes-management-care
#8
Siobhan M Heiden, Barrett S Caldwell
Experts in traumatic brain injury (TBI) rehabilitation recently proposed the framing of TBI as a chronic disease rather than a discrete event. Within the framework of the Chronic Care Model (CCM), a systematic comparison of three diseases - cancer survivorship, diabetes management, and TBI chronic care - was conducted regarding chronic needs and the management of those needs. In addition, comparisons of these conditions require comparative evaluations of disease management characteristics and the survivor concept...
July 6, 2017: Ergonomics
https://www.readbyqxmd.com/read/28677106/expression-and-prognostic-value-of-jam-a-in-gliomas
#9
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/28676010/kca3-1-channel-modulators-as-potential-therapeutic-compounds-for-glioblastoma
#10
Brandon M Brown, Brandon Pressley, Heike Wulff
The intermediate-conductance Ca2+-activated K+ channel KCa3.1 is widely expressed in cells of the immune system such as T- and B-lymphocytes, mast cells, macrophages and microglia, but also found in dedifferentiated vascular smooth muscle cells, fibroblasts and many cancer cells including pancreatic, prostate, leukemia and glioblastoma. In all these cell types KCa3.1 plays an important role in cellular activation, migration and proliferation by regulating membrane potential and Ca2+ signaling. KCa3.1 therefore constitutes an attractive therapeutic target for diseases involving excessive proliferation or activation of one more of these cell types and researchers both in academia and in the pharmaceutical industry have developed several potent and selective small molecule inhibitors of KCa3...
June 30, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28675683/pediatric-cancer-pathology-review-from-a-single-institution-neuropathology-expert-opinion-is-essential-for-accurate-diagnosis-of-pediatric-brain-tumors
#11
Zeina Merabi, Fouad Boulos, Teresa Santiago, Jesse Jenkins, Miguel Abboud, Samar Muwakkit, Nidale Tarek, Ghazi Zaatari, Sima Jeha, Hassan El-Solh, Raya Saab
BACKGROUND AND OBJECTIVES: Second pathology review has been reported to improve accuracy in oncologic diagnoses, including pediatric malignancies. We assessed the impact of second review on the diagnosis of pediatric malignancies at a tertiary care referral center in Beirut, Lebanon. METHODS: Pathology reports of patients treated at the Children's Cancer Institute in Lebanon were retrospectively reviewed for the period 2008-2016 and compared with same samples' diagnoses at St...
July 4, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28670490/dehydrocostus-lactone-a-natural-sesquiterpene-lactone-suppresses-the-biological-characteristics-of-glioma-through-inhibition-of-the-nf-%C3%AE%C2%BAb-cox-2-signaling-pathway-by-targeting-ikk%C3%AE
#12
Jinkui Wang, Zhenlong Yu, Chao Wang, Xiangge Tian, Xiaokui Huo, Yan Wang, Chengpeng Sun, Lei Feng, Jing Ma, Baojing Zhang, Qining Yang, Xiaochi Ma, Yinghui Xu
Dehydrocostus lactone (DHE), a natural sesquiterpene lactone, has been used for treatment of various diseases with its anti-inflammatory activity. Recently, it has caused extensive interest in researchers due to it has anti-cancer abilities in some types of carcinomas. However, the anti-cancer effect and mechanism of DHE in glioma remains unclear. The present study conducted to determine the biological effects of DHE on the glioblastoma cells, as well as the mechanisms underlying these effects. After treatment with DHE, the glioblastoma (U118, U251 or U87) cells were significantly inhibited in their viability, proliferation and migration...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28670142/prevalence-of-hypercalcemia-of-malignancy-among-pediatric-cancer-patients-in-the-uk-clinical-practice-research-datalink-database
#13
Susan Jick, Lin Li, Victor M Gastanaga, Alexander Liede, Rohini K Hernandez
BACKGROUND: The reported proportion of cancer patients who experience hypercalcemia of malignancy (HCM) is low, particularly in the pediatric population, ranging between <1% and 5%. HCM can be observed with any type of tumor in children and occurs most commonly with leukemia. While HCM is a potentially fatal condition, the prevalence of HCM is not well understood in pediatric cancer patients. METHODS: Using the UK Clinical Practice Research Datalink, we identified pediatric cancer patients with recorded corrected serum calcium (CSC) from 2003 through 2014...
2017: Clinical Epidemiology
https://www.readbyqxmd.com/read/28668500/toll-like-receptor-4-p38-mapk-signaling-in-the-dorsal-horn-contributes-to-p2x4-receptor-activation-and-bdnf-over-secretion-in-cancer-induced-bone-pain
#14
Xiao-Wen Meng, Jian-Ling Gao, Jian-Ling Zuo, Li-Na Wang, Si-Lan Liu, Xiao-Hong Jin, Ming Yao, Michael Namaka
Our previous research suggested that the P2X4 receptor (P2X4R) expression in microglia was involved in the activation of toll-like receptor-4 (TLR4) in the dorsal horn in the rat model of cancer induced bone pain (CIBP). In this study, we focused on whether TLR4- mitogen-activated protein kinases, p38 (p38 MAPK) contributes to P2X4R activation and brain-derived neurotrophic factor (BDNF) over-secretion in CIBP. In in vitro experiment, the results showed that BDNF expression evoked by ATP stimulation was dependent on TLR4-p38...
June 28, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28658969/resilience-and-coping-strategies-influencing-the-quality-of-life-in-patients-with-brain-tumor
#15
Chiu-Ju Pan, Hui-Chun Liu, Shu-Yuan Liang, Chieh-Yu Liu, Wei-Wen Wu, Su-Fen Cheng
The study purpose was to evaluate how much of the variance in quality of life (QOL) among Taiwanese patients with brain tumor could be accounted for by resilience and coping strategy. This cross-sectional study included 95 patients who had undergone a treatment of operations or chemotherapy or radiotherapy relevant to brain tumor after at least 1 month and completed the European Organization for Research and Treatment of Cancer QOL Questionnaire-Brain Cancer Module (EORTC QLQ-BN20), Resilience Scale (RS), and Ways of Coping Checklist-Revised (WCC-R)...
June 1, 2017: Clinical Nursing Research
https://www.readbyqxmd.com/read/28657421/chemo-brain-from-discerning-mechanisms-to-lifting-the-brain-fog-an-aging-connection
#16
Anna Kovalchuk, Bryan Kolb
Mounting evidence indicates that cancer treatments cause numerous deleterious effects, including central nervous system (CNS) toxicity. Chemotherapy-caused CNS side effects encompass changes in cognitive function, memory, and attention, to name a few. Although chemotherapy treatment-induced side effects occur in 16-75% of all patients, the mechanisms of these effects are not well understood. We have recently proposed a new epigenetic theory of chemo brain and, in a pioneer study, determined that cytotoxic chemotherapy agents induce oxidative DNA damage and affect molecular and epigenetic processes in the brain, and may be associated with brain aging processes...
June 28, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28656089/berberis-vulgaris-and-its-constituent-berberine-as-antidotes-and-protective-agents-against-natural-or-chemical-toxicities
#17
REVIEW
Nooshin Mohammadzadeh, Soghra Mehri, Hossein Hosseinzadeh
Berberis vulgaris L (B. vulgaris) and its main constituent berberine have been used in traditional medicine for a long time. This medicinal plant and berberine have many properties that have attracted the attention of researchers over the time. According to several studies, B. vulgaris and berberine exhibited anti-inflammatory, antioxidant, anticonvulsant, antidepressant, anti-Alzheimer, anti-cancer, anti-arrhythmic, antiviral, antibacterial and anti-diabetic effects in both in vitro and invivo experiments...
May 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28654387/phosphatidylserine-targeted-nanotheranostics-for-brain-tumor-imaging-and-therapeutic-potential
#18
Lulu Wang, Amyn A Habib, Akiva Mintz, King C Li, Dawen Zhao
Phosphatidylserine (PS), the most abundant anionic phospholipid in cell membrane, is strictly confined to the inner leaflet in normal cells. However, this PS asymmetry is found disruptive in many tumor vascular endothelial cells. We discuss the underlying mechanisms for PS asymmetry maintenance in normal cells and its loss in tumor cells. The specificity of PS exposure in tumor vasculature but not normal blood vessels may establish it a useful biomarker for cancer molecular imaging. Indeed, utilizing PS-targeting antibodies, multiple imaging probes have been developed and multimodal imaging data have shown their high tumor-selective targeting in various cancers...
January 1, 2017: Molecular Imaging
https://www.readbyqxmd.com/read/28640705/genomic-analysis-of-childhood-brain-tumors-methods-for-genome-wide-discovery-and-precision-medicine-become-mainstream
#19
Stephen C Mack, Paul A Northcott
Recent breakthroughs in next-generation sequencing technology and complementary genomic platforms have transformed our capacity to interrogate the molecular landscapes of human cancers, including childhood brain tumors. Numerous high-throughput genomic studies have been reported for the major histologic brain tumor entities diagnosed in children, including interrogations at the level of the genome, epigenome, and transcriptome, many of which have yielded essential new insights into disease biology. The nature of these discoveries has been largely platform dependent, exemplifying the usefulness of applying different genomic and computational strategies, or integrative approaches, to address specific biologic and/or clinical questions...
July 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28632243/team-science-and-big-brains
#20
Anne Katz
Recently, I was honored with the task of moderating a session at the Oncology Nursing Society's 42nd Annual Congress in Denver, Colorado. The panel discussion, "Team Science: A Discussion With the Experts," was described as an opportunity to learn about team science implementation in the conduct of cancer research. The panel members were leaders in oncology research. As the session was about to begin, I looked over at the panelists and decided that this session should have been called "The Big Brains Session" because the panelists are giants in the field...
July 1, 2017: Oncology Nursing Forum
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