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https://www.readbyqxmd.com/read/29775768/canine-pet-dog-tumor-microsurgery-and-intratumoral-concentration-and-safety-of-metronomic-chlorambucil-for-spontaneous-glioma-a-phase-i-clinical-trial
#1
R Timothy Bentley, Stephanie A Thomovsky, Margaret A Miller, Deborah W Knapp, Aaron A Cohen-Gadol
INTRODUCTION: Metronomic (daily low-dose) chlorambucil requires further study before implementation in human glioma. OBJECTIVE: Investigate the distribution and safety of metronomic chlorambucil in naturally occurring canine glioma. METHODS: Eight client-owned (pet) dogs with newly diagnosed spontaneous glioma were prospectively enrolled. Chlorambucil was administered preoperatively at 4 mg/m2 q 24hr for ≥ 3 days, and continued postoperatively until death or dose-limiting adverse events...
May 15, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29775749/a-novel-oncogene-urg4-urgcp-and-its-role-in-cancer
#2
REVIEW
Yavuz Dodurga, Mücahit Seçme, N Lale Şatıroğlu-Tufan
Oncogenes are mutated form of normal cellular genes called as proto-oncogenes and conduce to the cancer development process. Despite the fact that so many genes have been described, new genes with oncogenic characteristic and potential or tumor supressoring activity are still being defined. Recently, Up-regulated gene 4/Upregulator of cell proliferation (URG4/URGCP), a novel gene, induced by hepatitis-Bvirus-encoded X antigen (HBxAg), has been identified. URG4/URGCP gene was registered to the National Center for Biotechnology Information-GenBank (NCBI-GenBank, Entrez GeneID: 55665 and Entrez Nucleotide ID NM_017920)...
May 15, 2018: Gene
https://www.readbyqxmd.com/read/29775559/mechanosensitivity-of-mitochondr-ial-large-conductance-calcium-activated-potassium-channels
#3
Agnieszka Walewska, Bogusz Kulawiak, Adam Szewczyk, Piotr Koprowski
Potassium channels have been discovered in the inner mitochondrial membrane of various cells. These channels can regulate the mitochondrial membrane potential, the matrix volume, respiration and reactive species generation. Therefore, it is believed that their activation is cytoprotective in various tissues. In our study, the single-channel activity of a large-conductance calcium-activated potassium channel (mitoBKCa ) was measured by the patch-clamp technique on mitoplasts derived from mitochondria isolated from human glioma U-87 MG cells...
May 15, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29775303/simultaneous-targeting-of-rgd-integrins-and-dual-murine-double-minute-proteins-in-glioblastoma-multiforme
#4
Francesco Merlino, Simona Daniele, Valeria La Pietra, Salvatore Di Maro, Francesco Saverio Di Leva, Diego Brancaccio, Stefano Tomassi, Stefano Giuntini, Linda Cerofolini, Marco Fragai, Claudio Luchinat, Florian Reichart, Chiara Cavallini, Barbara Costa, Rebecca Piccarducci, Sabrina Taliani, Federico Da Settimo, Claudia Martini, Horst Kessler, Ettore Novellino, Luciana Marinelli
In the fight against Glioblastoma Multiforme, recent literature data have highlighted that integrin α5β1 and p53 are part of convergent pathways in the control of glioma apoptosis. This observation prompted us to seek a molecule able to simultaneously modulate both target families. Analyzing the results of a previous virtual screening against murine double minute 2 protein (MDM2), we envisaged that Arg-Gly-Asp (RGD)-mimetic molecules could be inhibitors of MDM2/4. Herein we present the discovery of compound 7, which inhibits both MDM2/4 and α5β1/αvβ3 integrins...
May 18, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29775073/diffuse-gliomas-for-nonneuropathologists-the-new-integrated-molecular-diagnostics
#5
Sunhee C Lee
Diffuse gliomas comprise the bulk of "brain cancer" in adults. The recent update to the 4th edition of the World Health Organization's classification of tumors of the central nervous system reflects an unprecedented change in the landscape of the diagnosis and management of diffuse gliomas that will affect all those involved in the management and care of patients. Of the recently discovered gene alterations, mutations in the Krebs cycle enzymes isocitrate dehydrogenases (IDHs) 1 and 2 have fundamentally changed the way the gliomas are understood and classified...
May 18, 2018: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/29774878/-etiology-and-risk-factors-for-meningitis-and-or-bacteremia-after-craniotomy-for-patients-with-glioma
#6
Yaning Wang, Yu Wang, Wenbin Ma
To evaluate the incidence and microbiological profile of meningitis and/or bacteremia after craniotomy in patients with glioma and analyze the risk factors relevant to postoperative meningitis.
 Methods: All demographic data, etiological data and clinical data for hospitalized patients who underwent craniotomy in Dept. of Neurosurgery of Peking Union Medical College Hospital between Jan. 2013 to Dec. 2017 were recorded.
 Results: The incidence of post-craniotomy meningitiswas 7.73%, bacteremia was 2.21% and meningitis combined with bacteremia was 1...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774877/-analysis-of-prognostic-factors-for-survival-in-elderly-patients-with-glioma
#7
Jinghui Liu, Miao Lou, Peigang Ji, Chen Li, Fuqiang Feng, Baofu Li, Meng Xu, Guodong Gao, Yan Qu, Liang Wang
To analyze the prognostic factors for survival in elderly patients with glioma.
 Methods: We performed a retrospective analysis of prognostic factors for elderly patients with glioma, who were treated by the same attending doctor during June 2014 and June 2016, to investigate the correlations of the age, dimension of pathology, histological grade, extent of resection, adjuvant therapy, preoperative Karnofsky Performance Scale (KPS) score, postoperative KPS score, molecular markers [isocitrate dehydrogenase-1 (IDH-1), O6-methylguanine DNA-transferase (MGMT), epidermal growth factor receptor (EGFR), Ki-67] with the prognosis...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774876/-clinicopathological-features-for-epithelioid-glioblastoma-a-newly-defined-tumor-by-the-2016-world-health-organization-classification-of-tumors-of-the-central-nervous-system
#8
Juan Li, Xuebing Ling, Mingyao Lai, Qingjun Hu, Changguo Shan, Linbo Cai
To retrospectively summarize the clinicopathological features of epithelioid glioblastoma (Ep-GBM) and to explore new treatment for Ep-GBM.
 Methods: The clinical data of 13 patients with Ep-GBM, who were treated in our department from March 2016 to July 2017, were retrospectively analyzed. The clinicopathological features were summarized and the efficacy was evaluated.
 Results: The positive rate of BRAFV600E mutant and INI-1 was 76.9% (10/13) and 80% (8/10), respectively, while the median Ki-67 index was 30%...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774875/-clinical-efficacy-of-stereotactic-radiation-therapy-combined-with-temozolomide-on-recurrent-brain-glioma
#9
Huiping Zhao, Sha Liu, Chengchuan Jiang, Xiangjun Li, Sanyuan Tang
To investigate the clinical efficacy of stereotactic radiation therapy combined with temozolomide on recurrent glioma.
 Methods: A total of 36 patients with recurrent glioma were retrospectively analyzed and divided into a control group (n=12), who received stereotactic radiation therapy, and an experimental group (n=24), who received stereotactic radiation therapy plus temozolomide. The clinical efficacy and adverse reactions for the 2 groups were compared.
 Results: Total effective rate and local control rate for clinical treatment were 66...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774874/-survival-analysis-for-high-grade-glioma-patients-who-received-comprehensive-treatment
#10
Guiyun Liu, Rong Jiang, Chenyang Xu, Jiao Zhou, Fengxin Liu, Zhengwen He, Zhigang Liu
To analyze the curative effect and prognostic factors for comprehensive therapy in patients with high-grade glioma.
 Methods: Patients with high-grade glioma (WHO grade III, grade IV) were chosen from July 2008 to May 2016 in the Hunan Cancer Hospital, and a retrospective analysis was performed in 64 patients with complete follow-up data.
 Results: The follow-up time was 3-111 (median 29.5) months, the median overall survival time was 36.00 (95% CI 22.85 to 49.16) months, the median progression-free survival time (PFS) was 21...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774873/-application-of-intraoperative-mri-combined-with-neuronavigation-in-microsurgical-resection-for-insular-glioma
#11
Quanwei Zhou, Li Xia, Kejun He, Sheng Yan, Xiaoping Xu, Xixi Li, Zhengsong Huang, Nu Zhang
To evaluate the value of intraoperative magnetic resonance imaging (iMRI) combined with neuronavigation for the resection of insular gliomas.
 Methods: From August 2014 to October 2017 in the First Hospital Affiliated to Sun Yat-sen University, clinical data of 41 patients with insular glioma, who underwent the surgery assisted with 3.0T iMRI and neuronavigation, were analyzed retrospectively, and the resection extent, complications and prognosis were evaluated.
 Results: Subtotal tumor resection was achieved in 21 patients and partial resection was done in 20 after iMRI scanning...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774872/a-signature-based-on-survival-related-genes-identifies-high-risk-glioblastomas-harboring-immunosuppressive-and-aggressive-ecm-characteristics
#12
Di Chen, Dikang Chen, Dongqing Cao, Jian Hu, Yu Yao
To seek survival-related genes in glioblastoma and establish a survival-gene signature for predicting prognoses of glioblastoma using public databases.
 Methods: Three independent glioma databases (GEO GSE53733, CGGA, TCGA) with whole genome expression data were included for analysis. Survival-related genes were obtained by comparing the long-term (>36 months) and short-term (<12 months) survivors in the database GSE53733. CGGA was used as the training set to develop the signature and TCGA was used as the validation set...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774871/-progression-of-basic-research-clinical-application-of-photodynamic-therapy-and-fluorescence-guided-surgery-in-glioma-treatment
#13
Xuegang Li, Hua Feng, Fei Li
The prognosis of glioma remains poor because of the infiltrative nature and the high local relapse rate. The current goals for patients with gliomas is maximal safe resection and adjuvant therapy. Tumor-specific photosensitizer, such as hematoporphyrin derivative (HpD) 5-aminolevulinic acid (5-ALA), can be selective up-taken and accumulated in tumor tissue. Light with appropriate wavelength can penetrate tumor tissue and excite the photosensitizer. The excited photosensitizer within glioma cells permits fluorescence visualization of tumor tissue during surgery and has been introduced in treatment of glioma as fluorescence-guided surgery (FGS)...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774870/radiomics-in-gliomas-a-promising-assistance-for-glioma-clinical-research
#14
Yueshuang Leng, Xiaoyi Wang, Weihua Liao, Ya Cao
Gliomas are the most common brain primary tumors worldwide, which is the earliest sequenced cancer gene in the Cancer Genome Atlas (TCGA) project. The World Health Organization Classification Update of Central Nervous System (CNS) Tumors 2016 highlights that glioma is the first tumor classified based on both of the molecular markers and histology. Radiomics is an extraction approach for high-throughput data which collects the quantitative image information appearing. Combined imaging data with genomics and proteomics, radiomics show promising prediction for cancer diagnosis, treatment, and prognosis...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774869/genetic-epidemiology-and-risk-factors-for-brain-tumors
#15
Xuejun Li, Hang Cao, Yanhong Liu
This report summarized current knowledge and findings relevant to environmental and genetic risk factors in brain tumors, with a particular focus on glioma. To date, the established risk factors for brain tumors are family history and ionizing radiation exposure; whereas there is an inverse association between tumors and other factors such as history of allergies, atopic conditions, chickenpox, and varicella zoster virus infection. To identify inherited genetic variants impacting susceptibility of brain tumors, large scale familial linkage-scan pedigree analysis, population-based candidate genes, and genome-wide association study were performed...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774868/-seizure-susceptible-brain-regions-in-patients-with-low-grade-gliomas
#16
Yinyan Wang, Tao Jiang
Patients afflicted with low-grade glioma frequently suffer from seizures. The mechanisms for seizure initiation in these patients remain poorly understood. Tumor location is correlated with seizure initiation. However, these correlative studies rely on dichotomized data analysis which is based on arbitrary lobe assignments. As a result, the lesion-symptom correlation may be incorrectly interpreted. Categorizing patients according to tumor involvement in a single brain lobe might cause the neglect of important information, such as lesion location and lesion volume...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774498/microrna-1231-exerts-a-tumor-suppressor-role-through-regulating-the-egfr-pi3k-akt-axis-in-glioma
#17
Jiale Zhang, Jie Zhang, Wenjin Qiu, Jian Zhang, Yangyang Li, Enjun Kong, Ailin Lu, Jia Xu, Xiaoming Lu
PURPOSE: MicroRNAs (miRNAs) have been shown to be involved in the initiation and progression of glioma. However, the underlying molecular mechanisms are still unclear. METHODS: We performed microarray analysis to evaluate miRNA expression levels in 158 glioma tissue samples, and examined miR-1231 levels in glioma samples and healthy brain tissues using qRT-PCR. In vitro analyses were performed using miR-1231 mimics, inhibitors, and siRNA targeting EGFR. We used flow cytometry, CCK-8 assays, and colony formation assays to examine glioma proliferation and cell cycle analysis...
May 17, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29774497/safety-of-commercial-airflight-in-patients-with-brain-tumors-a-case-series
#18
Michelle Phillips, Marlon Saria, Amy Eisenberg, Daniel F Kelly, Garni Barkhoudarian
INTRODUCTION: Patients with intracranial masses are often advised to avoid airflight due to concerns of worsening neurological symptoms or deterioration. However, many patients often travel cross-country or internationally to tertiary care centers for definitive care. This study assesses the safety of commercial airflight for brain and skull base tumor patients without severe or progressive neurological deficits. METHODS: Patients that had traveled to our institution for surgery via commercial airflight from 2014 to 2017 were identified...
May 17, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29774180/survival-prediction-based-on-qualitative-mri-diffusion-signature-in-patients-with-recurrent-high-grade-glioma-treated-with-bevacizumab
#19
Pradeep Goyal, Mary Tenenbaum, Sonali Gupta, Puneet S Kochar, Alok A Bhatt, Manisha Mangla, Yogesh Kumar, Rajiv Mangla
Background: Bevacizumab was approved by the FDA for the treatment of recurrent or progressive glioblastoma (GBM). Imaging responses are typically assessed by gadolinium-enhanced MRI. We sought to determine the significance of qualitative diffusion signature (manifest as variable degree of dark signal) on ADC maps in recurrent gliomas after treatment with bevacizumab. Methods: We performed an institutional review board (IRB) approved retrospective study on patients who underwent MRI of the brain after 8 weeks of receiving bevacizumab for recurrent glioma...
April 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29774132/natural-products-a-hope-for-glioblastoma-patients
#20
REVIEW
Raghupathy Vengoji, Muzafar A Macha, Surinder K Batra, Nicole A Shonka
Glioblastoma (GBM) is one of the most aggressive malignant tumors with an overall dismal survival averaging one year despite multimodality therapeutic interventions including surgery, radiotherapy and concomitant and adjuvant chemotherapy. Few drugs are FDA approved for GBM, and the addition of temozolomide (TMZ) to standard therapy increases the median survival by only 2.5 months. Targeted therapy appeared promising in in vitro monolayer cultures, but disappointed in preclinical and clinical trials, partly due to the poor penetration of drugs through the blood brain barrier (BBB)...
April 24, 2018: Oncotarget
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