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Central Nervous Tumors

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https://www.readbyqxmd.com/read/29342201/differentiation-of-glioblastoma-multiforme-metastases-and-primary-central-nervous-system-lymphomas-using-multiparametric-perfusion-and-diffusion-mr-imaging-of-a-tumor-core-and-a-peritumoral-zone-searching-for-a-practical-approach
#1
Małgorzata Neska-Matuszewska, Joanna Bladowska, Marek Sąsiadek, Anna Zimny
INTRODUCTION: In conventional MR examinations glioblastomas multiforme (GBMs), metastases and primary CNS lymphomas (PCNSLs) may show very similar appearance. The aim of the study was to evaluate usefulness of multiparametric T2*DSC perfusion and diffusion MR imaging in the preoperative differentiation of these tumors. MATERIAL AND METHODS: Seventy four solitary enhancing tumors (27 GBMs, 30 metastases, 17 PCNSLs) were enrolled in the study. Parameters of cerebral blood volume (rCBV), peak height (rPH), percentage of signal recovery (rPSR) and apparent diffusion coefficient (ADC) were assessed from the tumor core and the peritumoral non-enhancing T2-hyperintense zone...
2018: PloS One
https://www.readbyqxmd.com/read/29339208/targeted-shrna-loaded-liposome-complex-combined-with-focused-ultrasound-for-blood-brain-barrier-disruption-and-suppressing-glioma-growth
#2
Guanjian Zhao, Qin Huang, Feng Wang, Xiang Zhang, Jiangang Hu, Ying Tan, Ning Huang, Zhigang Wang, Zhibiao Wang, Yuan Cheng
Our previous studies have demonstrated that focused ultrasound (FUS) combined with DNA-loaded microbubbles (MBs) can induce noninvasive, reversible, local disruption of the blood brain barrier (BBB) and enable targeted exogenous gene transfer into the central nervous system. However, due to low gene loading or the absence of positive targeting, to date, there has been no therapeutic effect of MBs combined with FUS in tumor treatment. In the current study, we adopted a phospholipid complex that exhibited sufficient gene loading and peptide-mediated targeting to delay glioma growth...
January 12, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29338911/-rosette-forming-glioneuronal-tumor-of-the-fourth-ventricle-two-cases-report-and-literature-review
#3
Bernardino Choque Cuba, José Manuel Ortega Zufiría, Pedro Domingo Poveda Núñez, Noemí Lomillos Prieto, Mario Sierra Rodríguez, Martin Tamarit Degenhardt, Remedios López Serrano, Juan Carlos Gómez Angulo Giner, José Antonio Aramburu González
Rosette-forming glioneuronal tumor of the fourth ventricle is a primary central nervous system tumor introduced in the group of glioneuronal tumors in the WHO classification of 2007. Initially it was described around the fourth ventricle, but recently have been published cases in different locations. We present 2cases of this rare tumor, both surgically treated. The first in a 41 year old man with typical symptoms of posterior fossa injury. The second in an 18 year old woman, with incidental finding of posterior fossa injury that was also surgically treated...
January 12, 2018: Neurocirugía
https://www.readbyqxmd.com/read/29338455/current-treatment-options-for-meningioma
#4
Caroline Apra, Matthieu Peyre, Michel Kalamarides
With an annual incidence of 5/100,000, meningioma is the most frequent primary tumor of the central nervous system. Risk factors are radiotherapy and hormone intake. Most meningiomas are grade I benign tumors, but up to 15% are atypical and 2% anaplastic according to the WHO 2016 histological criteria. Areas covered: This review details the current standard therapy based on international guidelines and recent literature, and describes new approaches developed to treat refractory cases. First-line treatments are observation and surgery, but adjuvant radiotherapy/radiosurgery is discussed for atypical and indicated for anaplastic meningiomas...
January 17, 2018: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/29336617/incidental-neuroblastoma-with-bilateral-retinoblastoma-what-are-the-chances
#5
Kelsey Roelofs, Furqan Shaikh, William Astle, Brenda L Gallie, Sameh E Soliman
A child with bilateral familial retinoblastoma underwent staging MRI brain and orbit which identified subtle leptomeningeal enhancement, thus prompting an MRI whole body, which revealed a retroperitoneal mass, confirmed on laparoscopic biopsy to be neuroblastoma. This is the first reported case of these two rare embryonal non-central nervous system tumors occurring concurrently. The cause of this concurrence is unknown despite their pathogenic similarities with a chance of 4 cases per 10 billion children aged 1-4 years...
January 16, 2018: Ophthalmic Genetics
https://www.readbyqxmd.com/read/29336268/%C3%AE-naplastic-lymphoma-kinase-in-glioblastoma-detection-diagnostic-methods-and-therapeutic-options
#6
Theodosis Kalamatianos, Despoina Denekou, George Stranjalis, Evangelia Papadimitriou
BACKGROUND: Glioblastoma (GBM) is the most aggressive and common brain tumor in adults, currently lacking effective life-prolonging and recurrence-preventing therapy; median survival of GBM patients stands at only 14-16 months. Increasing lines of evidence indicate that Anaplastic lymphoma kinase (ALK), a druggable tyrosine kinase receptor over-expressed in GBM, represents a potential therapeutic target in this tumor. OBJECTIVE: An overview of the state of the art and the existing recent patents regarding potential exploitation of ALK as a therapeutic target and/or diagnostic/prognostic factor in GBM...
January 15, 2018: Recent Patents on Anti-cancer Drug Discovery
https://www.readbyqxmd.com/read/29334442/a-rare-initial-presentation-of-primary-diffuse-leptomeningeal-pnet-in-a-10-year-old-male
#7
Peter Paul Lim, Jagadeesh Ramdas, Michal Ann Miller, Conrad Schuerch, George Wu
Primary leptomeningeal primitive neuroectodermal tumors (PNETs) are extremely rare childhood central nervous system malignancies harboring a very poor prognosis. There is no consensus treatment for these tumors to date. We report a case of a 10-year-old male who presented with mental status change, hydrocephalus, intracranial and spinal diffuse leptomeningeal enhancement without a primary mass upon cranial imaging and a negative initial biopsy until five months into his presentation. He responded significantly well to initial chemotherapy and radiotherapy...
December 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/29333016/clinicopathological-features-and-outcomes-in-primary-central-nervous-system-lymphoma-a-10-year-experience
#8
Chaitanya Krishna Puligundla, Stalin Bala, Ashok Kumar Karnam, Sadashivudu Gundeti, Tara Roshni Paul, Megha S Uppin, Lakshmi Srinivas Maddali
Context: Primary central nervous system lymphoma (PCNSL) is a variant of extranodal lymphoma, accounting for 4% of primary central nervous system tumors. PCNSL was more common in immunocompetent individuals. International Extranodal Lymphoma Study Group (IELSG) scoring was used for prognostication. High-dose methotrexate regimens along with radiotherapy improved outcomes in PCNSL. Aims: The aim of this study is to analyze the clinical and pathological features, progression-free survival (PFS), and overall survival (OS) in patients with PCNSL...
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29333015/a-profile-of-pediatric-solid-tumors-a-single-institution-experience-in-kashmir
#9
Namita Sharma, Ayesha Ahmad, Gull M Bhat, Sheikh A Aziz, Mohammad Maqbool Lone, Nisar A Bhat
Aims: The purpose of this retroprospective study was to study the epidemiological characteristics and outcomes of children with solid tumors at our institution. Subjects and Methods: Three hundred and three pediatrics patients registered at Regional Cancer Centre (RCC), Sher-i-Kashmir Institute of Medical Sciences (SKIMS), Srinagar, Kashmir, between January 2008 and June 2014, were analyzed with regard to demographic status, presenting complaints, investigations, treatment, morbidity, and outcomes...
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29330078/intraoperative-flow-cytometry-enables-the-differentiation-of-primary-central-nervous-system-lymphoma-from-glioblastoma
#10
Shunichi Koriyama, Masayuki Nitta, Takahiro Shioyama, Takashi Komori, Takashi Maruyama, Takakazu Kawamata, Yoshihiro Muragaki
OBJECTIVE: Accurate preoperative and intraoperative differentiation between primary central nervous system lymphoma (PCNSL) and glioblastoma (GBM) is sometimes difficult. Distinguishing between these tumors during surgery is important because surgical treatment is different between the two tumors. In this study, we established a new method of intraoperative differentiation between PCNSL and GBM using intraoperative flow cytometry (iFC), and we retrospectively tested whether iFC was useful for the intraoperative diagnosis of PCNSL and GBM...
January 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29329342/ternary-copper-ii-complex-nci60-screening-toxicity-studies-and-evaluation-of-efficacy-in-xenograft-models-of-nasopharyngeal-carcinoma
#11
Munirah Ahmad, Shazlan-Noor Suhaimi, Tai-Lin Chu, Norazlin Abdul Aziz, Noor-Kaslina Mohd Kornain, D S Samiulla, Kwok-Wai Lo, Chew-Hee Ng, Alan Soo-Beng Khoo
Copper(II) ternary complex, [Cu(phen)(C-dmg)(H2O)]NO3 was evaluated against a panel of cell lines, tested for in vivo efficacy in nasopharyngeal carcinoma xenograft models as well as for toxicity in NOD scid gamma mice. The Cu(II) complex displayed broad spectrum cytotoxicity against multiple cancer types, including lung, colon, central nervous system, melanoma, ovarian, and prostate cancer cell lines in the NCI-60 panel. The Cu(II) complex did not cause significant induction of cytochrome P450 (CYP) 3A and 1A enzymes but moderately inhibited CYP isoforms 1A2, 2C9, 2C19, 2D6, 2B6, 2C8 and 3A4...
2018: PloS One
https://www.readbyqxmd.com/read/29329256/personalized-antidepressant-selection-and-pathway-to-novel-treatments-clinical-utility-of-targeting-inflammation
#12
REVIEW
Manish K Jha, Madhukar H Trivedi
Major depressive disorder (MDD) is a chronic condition that affects one in six adults in the US during their lifetime. The current practice of antidepressant medication prescription is a trial-and-error process. Additionally, over a third of patients with MDD fail to respond to two or more antidepressant treatments. There are no valid clinical markers to personalize currently available antidepressant medications, all of which have similar mechanisms targeting monoamine neurotransmission. The goal of this review is to summarize the recent findings of immune dysfunction in patients with MDD, the utility of inflammatory markers to personalize treatment selection, and the potential of targeting inflammation to develop novel antidepressant treatments...
January 12, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29328618/highly-crystalline-multicolor-carbon-nanodots-for-dual-modal-imaging-guided-photothermal-therapy-of-glioma
#13
Min Qian, Yilin Du, Shanshan Wang, Chengyi Li, Huiling Jiang, Wei Shi, Jian Chen, Yi Wang, Ernst Wagner, Rongqin Huang
Imaging-guided site-specific photothermal therapy (PTT) of glioma and other tumors in central nervous system (CNS) presents a great challenge for the current nanomaterial design. Herein, an in-situ solid-state transformation method was developed for the preparation of multicolor highly crystalline carbon nanodots (HCCDs). The synthesis yields 6-8 nm sized HCCDs containing a highly crystalline carbon nanocore and a hydrophilic surface, which therefore simultaneously provide strong photoacoustic and photothermal performance as well as tunable fluorescence emission...
January 12, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29327175/microrna-30c-as-a-novel-diagnostic-biomarker-for-primary-and-secondary-b-cell-lymphoma-of-the-cns
#14
Alexander Baraniskin, Monika Chomiak, Guido Ahle, Thomas Gress, Malte Buchholz, Michael Turewicz, Martin Eisenacher, Michelle Margold, Uwe Schlegel, Wolff Schmiegel, Stephan Hahn, Roland Schroers
Primary lymphomas of the central nervous system (PCNSL) are highly aggressive tumors affecting exclusively the CNS, meninges, and eyes. PCNSL must be separated from secondary spread of systemic lymphoma to the CNS (SCNSL), which may occur at diagnosis or relapse of systemic lymphomas. At present, there are no valid methods to distinguish PCNSL from SCNSL based on tumor biopsy because of similar histological presentation. However, SCNSL and PCNSL are different in terms of prognosis and adequate therapy protocols...
January 11, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29325939/liponeurocytoma-of-the-cerebello-pontine-angle
#15
Carmela Chiaramonte, Sylvain Rabaste, Timothee Jacquesson, David Meyronet, François Cotton, Emmanuel Jouanneau, Moncef Berhouma
Liponeurocytoma is a very rare tumor classified as grade II (neuronal and mixed neuronal-glial tumors) according to 2016 WHO classification of Tumors of the Central Nervous System. The median age is 50-years-old and the most frequent location is the posterior cranial fossa especially within the cerebellar hemispheres; those arising in the cerebellopontine angle are exceptional. We herein report the clinical, radiological and pathological characteristics of a cerebellopontine angle liponeurocytoma in a 35-year-old woman...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29325248/-survival-of-patients-with-primary-central-nervous-system-diffuse-large-b-cell-lymphoma-impact-of-gene-aberrations-and-protein-overexpression-of-bcl-2-and-c-myc-and-selection-of-chemotherapy-regimens
#16
W J Yin, X Zhu, H Y Yang, W Y Sun, M J Wu
Objective: To investigate the impact of clinicopathological features, gene rearrangements and protein expression of bcl-6, bcl-2, C-MYC and chemotherapy regime on the prognosis of patients with primary central nervous system diffuse large B-cell lymphoma (PCNS-DLBCL). Methods: Thirty-three cases of PCNS-DLBCL diagnosed from January 2006 to December 2016 at Zhejiang Cancer Hospital were collected. The expression of CD10, bcl-6, bcl-2, MUM1 and MYC were detected by immunohistochemical staining (IHC). The presence of EB virus was detected by in situ hybridization(EBER)...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29324697/association-between-fetal-adipokines-and-child-behavioral-problems-at-preschool-age-the-hokkaido-study-on-environment-and-children-s-health
#17
Machiko Minatoya, Sachiko Itoh, Atsuko Araki, Naomi Tamura, Keiko Yamazaki, Chihiro Miyashita, Reiko Kishi
Studies have suggested associations between maternal obesity and mental health problems of their children. However, the underlying mechanism is largely unknown. A possible mechanism can be via inflammatory states and the other possible mechanism is metabolic hormone-induced programming. Cross-talk between adipokines, including inflammatory cytokines and metabolic hormones secreted from adipose tissue and the central nervous system needs to be further investigated to elucidate the mechanism. Thus, the aim of this study was to investigate the association between fetal adipokine levels and child behavioral problems at preschool age...
January 11, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29323737/mir-15b-hotair-p53-form-a-regulatory-loop-that-affects-the-growth-of-glioma-cells
#18
Guan Sun, Yingyi Wang, Junxia Zhang, Ning Lin, Yongping You
Among the malignant tumors of the human central nervous system, gliomas have the highest incidence and recurrence rate. Therefore, exploration of the molecular mechanism that underlies the development and progression of gliomas is of great clinical significance. Many studies have demonstrated that long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) play important roles in the development and progression of tumors. In the present study, both an RNAhybrid analysis and a dual-luciferase reporter gene assay confirmed that microRNA-15b (miR-15b) binding sites were present in the sequence of HOX transcript antisense RNA (HOTAIR)...
January 11, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29322494/common-primary-and-secondary-causes-of-headache-in-the-elderly
#19
Tara L Sharma
OBJECTIVE/BACKGROUND: Headache in the elderly, defined as individuals aged 65 and older, although less prevalent than younger individuals, can present as a diagnostic challenge, given the increase in potentially fatal diseases within this population. METHODS: These individuals require a complete history, neurological examination, and assessment of potential secondary causes of headaches. RESULTS: Secondary causes include temporal or giant cell arteritis, subdural hematomas, central nervous system (CNS) tumors, strokes, and CNS infections...
January 11, 2018: Headache
https://www.readbyqxmd.com/read/29318979/role-of-epigenetics-and-oxidative-stress-in-gliomagenesis
#20
Edgar Rangel-Lopez, Yesennia Sanchez-Perez, Ernesto Soto-Reyes, Claudia Maria Garcia-Cuellar, Bernardo Cacho-Diaz, Abel Santamaria
Malignant gliomas constitute more than 49% of all central nervous system (CNS) tumors and exhibit very poor prognosis. Two main events involved with the progression of gliomas are the deregulation of genes by genetic events and cellular damage elicited by the formation of reactive oxygen species (ROS). In gliomas, epigenetic abnormalities implicated in the deregulation of DNA methylation, nucleosome rearrangement, and acetylation of histones have been depicted. The overproduction of ROS has been implicated in the promotion of these modifications...
January 10, 2018: CNS & Neurological Disorders Drug Targets
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