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https://www.readbyqxmd.com/read/28820306/prognostic-value-of-estrogen-receptor-in-who-grade-iii-meningioma-a-long-term-follow-up-study-from-a-single-institution
#1
Lingyang Hua, Hongda Zhu, Jingrun Li, Hailiang Tang, Dapeng Kuang, Yin Wang, Feng Tang, Xiancheng Chen, Liangfu Zhou, Qing Xie, Ye Gong
OBJECTIVE Malignant meningioma is rare and classified as Grade III in the WHO classification of CNS tumors. However, the presence of estrogen receptor (ER) in WHO Grade III meningiomas and its correlation with patients' outcomes are still unclear. In this single-center cohort study, the authors analyzed clinical features, treatment, and prognosis of these malignant tumors in patients with long-term follow-up. METHODS A total of 87 patients who were pathologically diagnosed with WHO Grade III meningiomas between 2003 and 2008 were enrolled in this study and followed for at least 7 years...
August 18, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28815663/who-2016-classification-of-gliomas
#2
Pieter Wesseling, David Capper
Gliomas are the most frequent intrinsic tumours of the central nervous system and encompass two principle subgroups: diffuse gliomas and gliomas showing a more circumscribed growth pattern ('non-diffuse gliomas'). In the revised 4th edition of the WHO Classification of CNS tumors published in 2016, classification of especially diffuse gliomas has fundamentally changed: for the first time a large subset of these tumours is now defined based on presence/absence of IDH mutation and 1p/19q codeletion. Following this approach, the diagnosis of (anaplastic) oligoastrocytoma can be expected to largely disappear...
August 16, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28815380/expression-of-micrornas-in-tumors-of-the-central-nervous-system-in-pediatric-patients-in-m%C3%A3-xico
#3
Pilar Eguía-Aguilar, Lisette Gutiérrez-Castillo, Mario Pérezpeña-Díazconti, Jeanette García-Chéquer, Jorge García-Quintana, Fernando Chico-Ponce de León, Luis Gordillo-Domínguez, Samuel Torres-García, Francisco Arenas-Huertero
PURPOSE: MicroRNAs were identified as molecules that participate in gene regulation; alterations in their expression characterize central nervous system (CNS). Information in pediatrics is scarce, so the objective of this work was to determine and then compare the patterns of expression of microRNAs in astrocytomas, ependymomas, and medulloblastomas, as well as in non-neoplastic brain. METHODS: Low-density arrays were utilized to evaluate 756 microRNAs in three samples of each type of tumor and non-neoplastic brain...
August 16, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28814709/spindle-cell-oncocytoma-of-the-anterior-pituitary-presenting-with-an-acute-clinical-course-due-to-intraventricular-hemorrhage-a-case-report-and-review-of-literature
#4
Mostafa Osman, Andrew Wild
BACKGROUND Spindle cell oncocytoma (SCO) is a rare nonfunctioning neoplasm of the adenohypophysis, and was first described in 2002. SCO has been categorized as a separate entity by the 2007 World Health Organization (WHO) and is classified as a Grade 1 tumor of the central nervous system (CNS). Review of the literature has shown that 33 cases of SCO have been reported to date, and most of them presented with a mass effect or with panhypopituitarism. However, all reported cases have described the tendency of SCO to be hypervascular on imaging and histology...
August 17, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28808765/presentation-and-symptom-interval-in-children-with-central-nervous-system-tumors-a-single-center-experience
#5
Chiara Stocco, Chiara Pilotto, Eva Passone, Agostino Nocerino, Raffaello Tosolini, Anna Pusiol, Paola Cogo
PURPOSE: The aim of this study is to describe the symptoms and signs of central nervous system (CNS) tumors in a pediatric population and to assess the time interval between the onset of the disease and the time of the diagnosis. METHODS: A retrospective observational study was conducted at our Oncology Pediatric Unit between January 2000 and November 2011. We included 75 children between 5 months and 16 years (mean age of 7.8 ± 4.7 years), with male to female ratio of 3:2...
August 14, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28803168/metastatic-cardiac-angiosarcoma-to-the-lung-spine-and-brain-a-case-report-and-review-of-the-literature
#6
Chih-Ta Lin, Katrina Ducis, Suzanne Tucker, Bruce Tranmer
BACKGROUND: Metastatic angiosarcoma to the brain is a rare entity without an established management protocol. CASE DESCRIPTION: The authors describe a case of primary cardiac angiosarcoma with a rare brain metastasis in an adult. This patient underwent successful resection of his brain metastasis and was initiated on only chemotherapy for his systemic disease. The patient did not develop local recurrence. A review of primary and metastatic CNS angiosarcoma, its pathologic features, clinical disease course, treatment strategies and genomics is also described...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28802798/most-common-sites-on-mri-of-intracranial-neoplastic-leptomeningeal-disease
#7
J Matthew Debnam, Rory R Mayer, T Linda Chi, Leena Ketonen, Jeffrey S Weinberg, Wei Wei, Morris D Groves, Nandita Guha-Thakurta
Neoplastic leptomeningeal disease (LMD) represents infiltration of the leptomeninges by tumor cells. Knowledge of the frequencies of locations of LMD on MRI may assist in early detection, help elucidate the process of leptomeningeal spread of cancer and understand how LMD affects the central nervous system. Our goal was to identify intracranial sites of neoplastic LMD predilection on MRI in patients with cytologically-proven LMD. The presence of FLAIR signal hyperintensity and T1-weighted post-contrast enhancement in the sulci of the supratentorial compartment and cerebellum and enhancement of the cranial nerves (CNs), basal cisterns, pituitary stalk, and ependymal surface of the lateral ventricles, as well as the presence of parenchymal metastasis were recorded...
August 9, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28795287/recent-advances-in-the-classification-and-treatment-of-ependymomas
#8
REVIEW
Heather Leeper, Michelle M Felicella, Tobias Walbert
Ependymomas are a subgroup of ependymal glia-derived neoplasms that affect children as well as adults. Arising within any CNS compartment, symptoms at presentation can range from acute onset due to increased intracranial pressure to insidious myelopathy. The overall survival (OS) outcomes in adult patients across the subgroups is heterogeneous with subependymoma having an excellent prognosis often even in the absence of any treatment, whereas supratentorial ependymomas tend to be higher grade in nature and may have an OS of 5 years despite gross total resection and adjuvant radiation...
August 10, 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28779866/neurological-complications-of-rheumatic-disease
#9
Svetlana Lvovich, Donald P Goldsmith
Rheumatic disease represents a broad spectrum of systemic conditions manifested by multisystem involvement and mediated by autoimmunity and inflammation. Their neurological complications may occur at any point in the disease process and are diagnostically challenging. For years central nervous system (CNS) was considered as a system uniquely protected from effects of the immune system because of the blood-brain barrier. Indeed, under physiological conditions immune access to CNS is tightly regulated. Over the past decade, new scientific discoveries highlighted pathways by which immune and neurological systems interact, including a variety of mechanisms controlling permeability of blood-brain barrier, and specific roles that CD4(+) and CD8(+) T-lymphocytes play in initiation of specific adaptive immune response to neural specific antigens...
February 2017: Seminars in Pediatric Neurology
https://www.readbyqxmd.com/read/28777154/clinicopathologic-features-of-non-cns-primary-ewing-sarcoma-family-of-tumors-in-the-head-and-neck-region-don-t-forget-the-cic-and-bcor-rearranged-sarcomas
#10
David Creytens
No abstract text is available yet for this article.
August 2, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28761630/s100-b-a-new-concept-in-neurocritical-care
#11
REVIEW
Omidvar Rezaei, Hossein Pakdaman, Kurosh Gharehgozli, Leila Simani, Amir Vahedian-Azimi, Sina Asaadi, Zahra Sahraei, Mohammadreza Hajiesmaeili
After brain injuries, concentrations of some brain markers such as S100B protein in serum and cerebrospinal fluid (CSF) are correlated with the severity and outcome of brain damage. To perform an updated review of S100B roles in human neurocritical care domain, an electronic literature search was carried among articles published in English prior to March 2017. They were retrieved from PubMed, Scopus, EMBSCO, CINAHL, ISC and the Cochrane Library using keywords including "brain", "neurobiochemical marker", "neurocritical care", and "S100B protein"...
April 4, 2017: Iranian Journal of Neurology
https://www.readbyqxmd.com/read/28761507/primary-intracranial-dural-based-ewing-sarcoma-peripheral-primitive-neuroectodermal-tumor-mimicking-a-meningioma-a-rare-tumor-with-review-of-literature
#12
REVIEW
Vikul Kumar, Anshu Singh, Vivek Sharma, Mohan Kumar
Ewing sarcoma/peripheral primitive neuroectodermal tumor (ES/pPNET) is a malignant small, round cell tumor arising from bone and soft tissue in children and young adults. It can occur at osseous and extraosseous sites. Its usual locations are diaphysis of long bones followed by pelvis, ribs, vertebrae, and rarely skull. We reviewed the literature and PubMed advanced search on ES/pPNET occurring at extraosseous sites, mainly involving the central nervous system (CNS). We reported a case of a 22-year-old male presenting with seizure finally diagnosed as a case of ES/pPNET...
July 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28758581/implications-of-pegylation-of-carbon-nanotubes-for-central-nervous-system-bioavailability
#13
Gisele Eva Bruch, Marcos F Cordeiro, Livia S Gomides, Carolina Peixoto, Arthur P Cordeiro, Lidiane Dal Bosco, Adelina P Santos, Daniela M Barros
In this mini-review we have compiled the most recent and comparable information to shed a light on the action of PEGylation in the biodistribution of Carbon Nanotubes (CNT) in the Central Nervous System (CNS). It is well known that due to the complexity of the CNS and the severity of the outcome of changes in this system, this is one of the areas where there are more investments in research to develop new technologies and approaches for more effective and less invasive treatments. The CNS is highly protected against toxic and invasive microorganisms thanks to the blood brain barrier (BBB), but this protection also prevents the passage of potentially beneficial molecules for the treatment of neurological disorders, Nanotechnology attempts to develop nanocompounds that are biocompatible and non-immunogenic, and that are able to cross the BBB in therapeutic amounts without causing damage and to diffuse through nerve tissue...
July 31, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28757574/finding-a-balance-between-protection-and-pathology-the-dual-role-of-perforin-in-human-disease
#14
REVIEW
Robin C Willenbring, Aaron J Johnson
Perforin is critical for controlling viral infection and tumor surveillance. Clinically, mutations in perforin are viewed as unfavorable, as lack of this pore-forming protein results in lethal, childhood disease, familial hemophagocytic lymphohistiocytosis type 2 (FHL 2). However, many mutations in the coding region of PRF1 are not yet associated with disease. Animal models of viral-associated blood-brain barrier (BBB) disruption and experimental cerebral malaria (ECM) have identified perforin as critical for inducing pathologic central nervous system CNS vascular permeability...
July 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28756607/a-randomized-open-label-two-way-crossover-single-dose-bioequivalence-study-of-temozolomide-200%C3%A2-mg-m-2-dralitem-%C3%A2-vs-temodal-%C3%A2-capsules-in-patients-with-primary-tumors-of-the-central-nervous-system-under-fasting-conditions
#15
Alejandro Muggeri, Miguel Vago, Sebastián Pérez, Marcelo Rubio, Cecilia González, Cristian Magariños, Mónica Rosenberg, Fernando Costa, Santiago Pérez-Lloret
BACKGROUND: Temozolomide is an antineoplastic agent of proven efficacy against high-grade gliomas. PURPOSE: The objective of this crossover, single-dose, bioequivalence study was to compare the rate and extent of absorption of oral temozolomide after administration of the study product (Dralitem(®), Monte Verde Sociedad Anónima) and the reference product (Temodal(®), originator product manufactured by Schering Plough Laboratories) in patients with primary central nervous system (CNS) tumors under fasting conditions...
July 29, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28756093/noninvasive-nanoparticle-strategies-for-brain-tumor-targeting
#16
REVIEW
Chunmeng Sun, Yang Ding, Li Zhou, Di Shi, Linlin Sun, Thomas J Webster, Yan Shen
The blood-brain barrier (BBB) maintains the integrity and homeostasis of the central nervous system (CNS) yet represents an intimidating hurdle for efficient drug delivery to brain tumors. This up-to-date review summarizes strategies that have been employed to cross the BBB with a focus on non-invasive nanoparticles that could pass the BBB after systemic administration. Recent advances in liposomes, polymeric nanoparticles, micelles, and inorganic nanoparticles are scrutinized mechanistically with an emphasis on design principles...
July 27, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28752311/natural-history-of-lesions-with-the-mr-imaging-appearance-of-multinodular-and-vacuolating-neuronal-tumor
#17
Reema Alsufayan, Paula Alcaide-Leon, Lyne Noel de Tilly, Daniel M Mandell, Timo Krings
PURPOSE: Multinodular and vacuolating neuronal tumor (MVNT) have been recently added to the WHO classification of CNS tumors and has not been extensively reported upon in the radiological literature. We report the first radiological and the largest series of cases, aiming to highlight the natural history of lesions with the imaging appearance of MVNT with long follow-up time. METHODS: In this retrospective study, we collected cases with the imaging appearance of MVNT...
July 27, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28752202/pediatric-central-nervous-system-hemangioblastomas-different-from-adult-forms-a-retrospective-series-of-25-cases
#18
Jian Cheng, Wenke Liu, Xuhui Hui, Si Zhang, Yan Ju
BACKGROUND: Pediatric hemangioblastomas are rare, and the clinical features, timing of surgical intervention, optimal treatment, and clinical outcomes are still unclear. METHODS: We performed a retrospective study of all patients with CNS hemangioblastomas who were treated at West China Hospital from January 2003 to March 2015. Patients under the age of 16 years were included in the study. The medical records of these patients were reviewed and statistically analyzed...
July 27, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28751444/pediatric-phase-1-trial-and-pharmacokinetic-study-of-trebananib-in-relapsed-solid-tumors-advl1115-a-children-s-oncology-group-phase-1-consortium-report
#19
Sarah E S Leary, Julie R Park, Joel M Reid, Andrew T Ralya, Sylvain Baruchel, Bing Wu, Timothy P L Roberts, Xiaowei Liu, Charles G Minard, Elizabeth Fox, Brenda J Weigel, Susan Blaney
Trebananib is a first-in-class anti-angiogenic peptibody (peptide-Fc fusion protein) that inhibits Angiopoietin 1 and 2. A pediatric phase 1 trial was performed to define trebananib dose limiting toxicities (DLT), recommended phase 2 dose (RP2D) and pharmacokinetics (PK).<br /><br />Experimental Design: Trebananib was administered by weekly infusion. Three dose levels (10, 15 or 30 mg/kg/dose) were evaluated using a rolling-six design. Part 2 evaluated a cohort of subjects with primary central nervous system (CNS) tumors...
July 27, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28749971/pediatric-cancer-risk-in-association-with-birth-defects-a-systematic-review
#20
Kimberly J Johnson, Jong Min Lee, Kazi Ahsan, Hannah Padda, Qianxi Feng, Sonia Partap, Susan A Fowler, Todd E Druley
BACKGROUND: Many epidemiological studies have examined associations between birth defects (BDs) and pediatric malignancy over the past several decades. Our objective was to conduct a systematic literature review of studies reporting on this association. METHODS: We used librarian-designed searches of the PubMed Medline and Embase databases to identify primary research articles on pediatric neoplasms and BDs. English language articles from PubMed and Embase up to 10/12/2015, and in PubMed up to 5/12/2017 following an updated search, were eligible for inclusion if they reported primary epidemiological research results on associations between BDs and pediatric malignancies...
2017: PloS One
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