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Brain tumors in children

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https://www.readbyqxmd.com/read/29143922/pre-treatment-lymphopenia-and-indication-of-tumor-induced-systemic-immunosuppression-in-medulloblastoma
#1
Seema Patel, Shiyang Wang, Matija Snuderl, Matthias A Karajannis
The presence of tumor-induced systemic immune suppression, including lymphopenia, has been recognized in adult patients with glioblastoma for several decades, and pre-treatment neutrophil-to-lymphocyte count ratio (NLCR) is associated with inferior clinical outcome in patients with glioblastoma. Whether tumor-induced systemic immune suppression is also present in children with malignant brain tumors is not known. We performed a retrospective analysis of pretreatment neutrophil and lymphocyte counts in pediatric patients with medulloblastoma (MB) compared to a control group of children with posterior fossa pilocytic astrocytoma (PA)...
November 16, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29135108/addressing-the-post-irradiation-hypothalamic-pituitary-endocrine-abnormalities-of-brain-tumors-in-pediatric-patients
#2
Louloudenia Velentza, Maria Tolia, Charikleia Christakou, Michail Nikolaou, Ioannis Zerdes, Nikolaos Tsoukalas, Jiannis Hajiioannou, Konstantinos Tsanadis, Georgios Rigas, Michail Mitsis, Kyriaki Theodorou, Kyriaki Pistevou-Gombaki, Periklis Tsekeris, George Kyrgias
PURPOSE: Hypothalamic-pituitary axis is susceptible to radiotherapy, causing endocrine disorders to childhood cancer survivors. We conducted a systematic review in order to assess the radiation-induced toxicity that leads to hormone secretion abnormalities and their severity in children with brain tumors. METHODS: The data were collected by relevant studies on PubMed and EMBASE. Articles up to December 2016 were included. We selected studies which focused on children patients (<18 yr old) with brain tumors treated with radiotherapy and the consequences for their endocrine system...
September 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29131101/outcomes-and-prognostic-factors-in-pediatric-oligodendroglioma-a-population-based-study
#3
Nicholas J Goel, Kalil G Abdullah, Shih-Shan Lang
BACKGROUND/AIMS: Pediatric oligodendroglioma (pODG) is a rare primary brain tumor that remains poorly understood. Demographics, outcomes, and prognostic factors were analyzed in 346 pODG cases from the Surveillance, Epidemiology, and End Results database. METHODS: Gender, race, age, tumor location, tumor size, tumor grade, extent of resection, and use of radiotherapy were evaluated with respect to overall survival (OS) by univariate and multivariate analysis. These factors were assessed in the pediatric cohort and 5,753 adult oligodendroglioma cases for comparison...
November 2, 2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29125440/long-term-outcomes-of-primarily-metastatic-juvenile-pilocytic-astrocytoma-in-children
#4
Derek Yecies, Paul Graham Fisher, Samuel Cheshier, Michael Edwards, Gerald Grant
OBJECTIVE Primarily metastatic juvenile pilocytic astrocytoma (JPA) is rare, likely representing 2%-3% of all cases of JPA. Due to the rarity of primarily metastatic JPA, there is currently no standard treatment paradigm and the long-term outcomes are not fully known. The goal of this case series was to add to the current understanding of this disease process. METHODS The authors searched a comprehensive database of pediatric patients with brain and spinal cord tumors treated at Lucile Packard Children's Hospital from 1997 to 2016 and identified 5 patients with primarily metastatic JPA...
November 10, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29124086/the-pediatric-ependymoma-protein-database-pepd
#5
George Th Tsangaris, Athanasios K Anagnostopoulos
Proteomics, through application of modern high-end mass spectrometric (MS) approaches, offers the advantage of in-depth analysis of cancer tissues regarding their protein composition. Pediatric brain tumor malignancies are scarcely approached by modern holistic technologies (e.g. genomics, proteomics) due to rarity of samples and most importantly difficulty in their collection. Ependymoma, is the third most common tumor in children and is thought to arise from ependymal cells in the wall of the cerebral ventricles or the spinal canal...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29099727/supplemental-computational-phantoms-to-estimate-out-of-field-absorbed-dose-in-photon-radiotherapy
#6
Kyle Joseph Gallagher, Jaad Tannous, Racile Nabha, Joelle Ann Feghali, Zeina Ayoub, Wassim T Jalbout, Bassem Youssef, Phillip J Taddei
The purpose of this study was to develop a straightforward method of supplementing patient anatomy and estimating out-of-field absorbed dose for a cohort of pediatric radiotherapy patients with limited recorded anatomy. A cohort of nine children, aged 2 to 14 years, who received three-dimensional conformal radiotherapy for low grade localized brain tumors (LBTs), were randomly selected for this study. The extents of these patients' computed tomography simulation image sets were cranial only. To approximate their missing anatomy, we supplemented the LBT patients' image sets with computed tomography images of patients in a previous study with larger extents of matched sex, height, and mass and for whom contours of organs at risk for radiogenic cancer had already been delineated...
November 3, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29096244/neuronal-activity-in-the-glioma-microenvironment
#7
REVIEW
Tessa Johung, Michelle Monje
Gliomas are the most common primary brain tumor and high-grade gliomas the leading cause of brain tumor-related death in both children and adults. An appreciation for the crucial role of the nervous system in the tumor microenvironment is emerging for cancers in general, and the neural regulation of glioma progression has come into sharp focus. Here, we review what is known about the influence of active neurons on glioma pathobiology.
October 30, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/29090526/a-pediatric-brain-tumor-consortium-phase-ii-trial-of-capecitabine-rapidly-disintegrating-tablets-with-concomitant-radiation-therapy-in-children-with-newly-diagnosed-diffuse-intrinsic-pontine-gliomas
#8
Lindsay B Kilburn, Mehmet Kocak, Patricia Baxter, Tina Young Poussaint, Arnold C Paulino, Christine McIntyre, Annabelle Lemenuel-Diot, Christine Lopez-Diaz, Larry Kun, Murali Chintagumpala, Jack M Su, Alberto Broniscer, Justin N Baker, Eugene I Hwang, Maryam Fouladi, James M Boyett, Susan M Blaney
BACKGROUND: We conducted a phase II study of oral capecitabine rapidly disintegrating tablets given concurrently with radiation therapy (RT) to assess progression-free survival (PFS) in children with newly diagnosed diffuse intrinsic pontine gliomas (DIPG). PATIENTS AND METHODS: Children 3-17 years with newly diagnosed DIPG were eligible. Capecitabine, 650 mg/m(2) /dose BID (maximum tolerated dose [MTD] in children with concurrent radiation), was administered for 9 weeks starting the first day of RT...
November 1, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29069555/histopathological-findings-in-brain-tissue-obtained-during-epilepsy-surgery
#9
Ingmar Blumcke, Roberto Spreafico, Gerrit Haaker, Roland Coras, Katja Kobow, Christian G Bien, Margarete Pfäfflin, Christian Elger, Guido Widman, Johannes Schramm, Albert Becker, Kees P Braun, Frans Leijten, Johannes C Baayen, Eleonora Aronica, Francine Chassoux, Hajo Hamer, Hermann Stefan, Karl Rössler, Maria Thom, Matthew C Walker, Sanjay M Sisodiya, John S Duncan, Andrew W McEvoy, Tom Pieper, Hans Holthausen, Manfred Kudernatsch, H Joachim Meencke, Philippe Kahane, Andreas Schulze-Bonhage, Josef Zentner, Dieter H Heiland, Horst Urbach, Bernhard J Steinhoff, Thomas Bast, Laura Tassi, Giorgio Lo Russo, Cigdem Özkara, Buge Oz, Pavel Krsek, Silke Vogelgesang, Uwe Runge, Holger Lerche, Yvonne Weber, Mrinalini Honavar, José Pimentel, Alexis Arzimanoglou, Adriana Ulate-Campos, Soheyl Noachtar, Elisabeth Hartl, Olaf Schijns, Renzo Guerrini, Carmen Barba, Thomas S Jacques, J Helen Cross, Martha Feucht, Angelika Mühlebner, Thomas Grunwald, Eugen Trinka, Peter A Winkler, Antonio Gil-Nagel, Rafael Toledano Delgado, Thomas Mayer, Martin Lutz, Basilios Zountsas, Kyriakos Garganis, Felix Rosenow, Anke Hermsen, Tim J von Oertzen, Thomas L Diepgen, Giuliano Avanzini
BACKGROUND: Detailed neuropathological information on the structural brain lesions underlying seizures is valuable for understanding drug-resistant focal epilepsy. METHODS: We report the diagnoses made on the basis of resected brain specimens from 9523 patients who underwent epilepsy surgery for drug-resistant seizures in 36 centers from 12 European countries over 25 years. Histopathological diagnoses were determined through examination of the specimens in local hospitals (41%) or at the German Neuropathology Reference Center for Epilepsy Surgery (59%)...
October 26, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29065842/effects-of-vaccination-against-the-h1n1-virus-on-bdnf-and-tnf-%C3%AE-plasma-levels-in-pregnant-women
#10
Fernando Machado Vilhena Dias, Mirla Fiuza Diniz, Glaura C Franco, Aline Silva de Miranda, Antonio Lucio Teixeira, Poliana Toledo Nunes, Angela Maria Ribeiro
Vaccination is a widespread strategy to protect women and their children during fetal deve-lopment. However, there is a lack of knowledge about potential effects of H1N1 vaccinati-on on concentration of cytokines that are important to mother's central nervous system functions and fetal neurodevelopment. The main purpose of the present study was to evalu-ate such interaction. The specific goals were to study the effects of vaccination against the H1N1 virus on plasma levels of the Brain Derived Neurotrophic Factor(BDNF), Tumor Necrosis Factor-α (TNF-α) and TNF-α Receptors 1 and 2 (sTNFR1; sTNFR2), in different periods of gestation...
October 20, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/29065490/immunotherapy-for-pediatric-brain-tumors
#11
REVIEW
Elias J Sayour, Duane A Mitchell
Malignant brain tumors are the most common cause of solid cancer death in children. New targeted therapies are vital to improve treatment outcomes, but must be developed to enable trafficking across the blood brain barrier (BBB). Since activated T cells cross the BBB, cancer immunotherapy can be harnessed to unlock the cytotoxic potential of the immune system. However, standard of care treatments (i.e., chemotherapy and radiation) applied concomitant to pediatric brain tumor immunotherapy may abrogate induction of immunotherapeutic responses...
October 21, 2017: Brain Sciences
https://www.readbyqxmd.com/read/29059949/application-of-mri-texture-analysis-in-the-study-of-the-posterior-fossa-tumors-growing-trend-in-children
#12
Mengmeng Li, Zhigang Shang, Yonghui Dong, Yong Zhang, Ya Li
In order to analyze the growing trend of the posterior fossa tumor in children and provide assistant basis for the treatment or surgery of tumors, a variety of texture analysis methods were comprehensive used to analyze and identify three kinds of brain tissues, tumor region, tumor diffusion region and normal brain tissue region. The MRIs of tumor patients were collected to extract texture features. Then feature selection method CFS and feature compression method partial least squares regression (PLSR) were used to process these feature space...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29058689/deficiency-of-tumor-suppressor-ndrg2-leads-to-attention-deficit-and-hyperactive-behavior
#13
Yan Li, Anqi Yin, Xin Sun, Ming Zhang, Jianfang Zhang, Ping Wang, Rougang Xie, Wen Li, Ze Fan, Yuanyuan Zhu, Han Wang, Hailong Dong, Shengxi Wu, Lize Xiong
Attention-deficit/hyperactivity disorder (ADHD) is a prevalent psychiatric disorder in children. Although an imbalance of excitatory and inhibitory inputs has been proposed as contributing to this disorder, the mechanisms underlying this highly heterogeneous disease remain largely unknown. Here, we show that N-myc downstream-regulated gene 2 (NDRG2) deficiency is involved in the development of ADHD in both mice and humans. Ndrg2-knockout (Ndrg2-/-) mice exhibited ADHD-like symptoms characterized by attention deficits, hyperactivity, impulsivity, and impaired memory...
October 23, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29057192/palliative-care-options-for-a-young-adult-patient-with-a-diffuse-intrinsic-pontine-glioma
#14
Julian Sison, Hung Tran, Ashley Margol, Nishant Tiwari, Karla M Garcia, Jennifer Cotter, Erin Kiehna, Arthur J Olch, Kenneth Wong
Diffuse intrinsic pontine gliomas (DIPGs) are rare but devastating brain tumors that occur primarily in children. These gliomas have poor prognoses and present options focus on palliation of symptoms and prolongation of life. Here, we present a case of a 16-year-old female diagnosed with a DIPG whose age group has been mostly left out of discussions regarding psychosocial support options. This report is meant to start a conversation about the different support options available at our institution that have shown promising results in the literature for palliative care applications...
August 18, 2017: Curēus
https://www.readbyqxmd.com/read/29054779/prevalence-characteristics-and-long-term-prognosis-of-epilepsy-associated-with-pediatric-brain-tumors
#15
Hadar Weisman, Iris Fried, Tal Gilboa, Odeya Bennett-Back, Dana Ekstein, Moatasem Shweiki, Yigal Shoshan, Mony Benifla
OBJECTIVE: We investigated the prevalence, onset, characteristics and long-term course of epilepsy disease in children who underwent surgical intervention for diagnosed brain tumors. METHODS: We reviewed the medical records of children with diagnosed brain tumors, who underwent surgery during 2004-2014 at the Hadassah Medical Center. All patients with epilepsy were invited to a clinical visit that included a neurological exam. The primary outcome measures were neurological status according to the Glasgow Outcome Scale (GOS) and postoperative seizure outcome according to the Engel system...
October 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29050071/-poorly-differentiated-chordoma-with-ini1-loss-a-clinicopathologic-study
#16
J Y Feng, L Chen, Y Y Ma, H W Yang, L Chen
Objective: To analyze the clinicopathologic characteristics of poorly-differentiated chordoma with INI1 loss in children and to discuss the differential diagnosis. Methods: The clinical, radiological, histopathological profiles and molecular pathologic characteristics of two pediatric poorly differentiated chordoma cases with INI1 loss were reviewed. Results: The patients were a girl and a boy. Both lesions involved the slope. Both patients were presented with progressive muscle weakness or neck pain. Radiological examination showed clivus bone destruction and compression of the brain stem and cervical spinal cord...
October 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29032518/synchronous-solitary-calvarial-yolk-sac-tumor-metastasis-as-the-initial-presentation-of-mediastinal-germ-cell-tumor
#17
Kirti Gupta, Madhivanan Karthigeyan, Ayushman Satapathy, Pravin Salunke
INTRODUCTION: In children, malignant tumors presenting as a calvarial mass that too as initial manifestation are unusual. Also, brain metastases per se are rare in pediatric solid tumors with an incidence of just 1.5%. CASE DESCRIPTION: We present a child with calvarial metastasis which was the presenting symptom of an otherwise asymptomatic large malignant mediastinal germ cell tumor (GCT). The lesion was dural-based involving both calvaria as well as the underlying brain parenchyma...
October 14, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29028423/2016-updates-to-the-who-brain-tumor-classification-system-what-the-radiologist-needs-to-know
#18
Derek R Johnson, Julie B Guerin, Caterina Giannini, Jonathan M Morris, Lawrence J Eckel, Timothy J Kaufmann
Radiologists play a key role in brain tumor diagnosis and management and must stay abreast of developments in the field to advance patient care and communicate with other health care providers. In 2016, the World Health Organization (WHO) released an update to its brain tumor classification system that included numerous significant changes. Several previously recognized brain tumor diagnoses, such as oligoastrocytoma, primitive neuroectodermal tumor, and gliomatosis cerebri, were redefined or eliminated altogether...
November 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29026272/incidence-of-diabetes-mellitus-and-neoplasia-in-japanese-short-statured-children-treated-with-growth-hormone-in-the-genetics-and-neuroendocrinology-of-short-stature-international-study-genesis
#19
Susumu Yokoya, Tomonobu Hasegawa, Keiichi Ozono, Hiroyuki Tanaka, Susumu Kanzaki, Toshiaki Tanaka, Kazuo Chihara, Nan Jia, Christopher J Child, Katsuichiro Ihara, Jumpei Funai, Noriyuki Iwamoto, Yoshiki Seino
The primary goal of the Genetics and Neuroendocrinology of Short Stature International Study (GeNeSIS) was to assess the safety and effectiveness of Humatrope(®), a GH preparation, in the treatment of pediatric patients with short stature. We report our findings in the GH-treated Japanese pediatric population focusing on the incidence of type 2 diabetes (T2D) and occurrence of neoplasms. A total of 2,345 Japanese patients were assessed for safety. During a mean observation period of 3.2 yr, T2D occurred in 3 patients (0...
2017: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/29017364/can-patients-safely-be-admitted-to-a-ward-after-craniotomy-for-resection-of-intra-axial-brain-tumors
#20
Farhan A Mirza, Catherine Wang, Thomas Pittman
OBJECTIVE: We reviewed the safety of our practice of admitting patients who have undergone a craniotomy for resection of an intra-axial brain tumor to a floor bed instead of an ICU. We also tried to quantify the risk that patients electively admitted to the ICU would develop a problem that could not have been effectively managed on the ward. METHODS: A retrospective chart review was performed of both adult and pediatric patients who underwent craniotomy by the senior author for resection of an intra-axial brain tumor between January 2012 and December 2015...
October 11, 2017: British Journal of Neurosurgery
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