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https://www.readbyqxmd.com/read/29777889/endovascular-management-of-a-ruptured-basilar-perforator-artery-aneurysm-associated-with-a-pontine-arteriovenous-malformation-a-case-report-and-review-of-the-literature
#1
Joseph Lockwood, Tyler Scullen, Mansour Mathkour, Ascher Kaufmann, Ricky Medel, Aaron S Dumont, Peter S Amenta
BACKGROUND: Arteriovenous malformation (AVM)-associated aneurysms are common, being reported in 15% of cases. In regards to ruptured posterior fossa AVMs, associated aneurysms are present in 48% of cases and are the etiology of the bleed in 37%. We present a 75 year-old female who presented with a subarachnoid hemorrhage (SAH) secondary to a ruptured aneurysm arising from a flow-related basilar perforator artery feeder of an anterior pontine AVM. We report the successful treatment of the aneurysm with coil embolization...
May 16, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29775659/%C3%AE-2-receptors-in-the-lateral-parabrachial-nucleus-generates-the-pressor-response-of-the-cardiovascular-chemoreflex-effects-of-gaba-a-receptor
#2
Nafiseh Mirzaei Damabi, Gholam Reza Namvar, Fahimeh Yeganeh, Masoumeh Hatam
The lateral parabrachial nucleus (LPBN) is a pontine area involved in cardiovascular chemoreflex. This study was performed to find the effects of reversible synaptic blockade of the LPBN on the chemoreflex responses, and to find the roles of GABAA receptor and α2 -adenoreceptor (α2 -AR) in chemoreflex. It also aimed to seek possible interaction between GABA and noradrenergic systems of the LPBN in urethane-anesthetized male rats. Cardiovascular chemoreflex was activated by intravenous injection of potassium cyanide (KCN, 80 μg/kg)...
May 15, 2018: Brain Research Bulletin
https://www.readbyqxmd.com/read/29774497/safety-of-commercial-airflight-in-patients-with-brain-tumors-a-case-series
#3
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/29767306/correction-to-results-of-nimotuzumab-and-vinorelbine-radiation-and-re-irradiation-for-diffuse-pontine-glioma-in-childhood
#4
Maura Massimino, Veronica Biassoni, Rosalba Miceli, Elisabetta Schiavello, Monika Warmuth-Metz, Piergiorgio Modena, Michela Casanova, Emilia Pecori, Felice Giangaspero, Manila Antonelli, Francesca Romana Buttarelli, Paolo Potepan, Bianca Pollo, Raffaele Nunziata, Filippo Spreafico, Marta Podda, Andrea Anichini, Carlo Alfredo Clerici, Iacopo Sardi, Loris De Cecco, Udo Bode, Ferdinand Bach, Lorenza Gandola
The therapeutic experience reported in the paper was conceived after the use of nimotuzumab and radiotherapy (BSCPED-05 international multicentric trial, EUDRACT 2005-003100-11) in 2009 when we decided to explore the activity of the same combination plus vinorelbine (see the paper for the rationale).
May 16, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29760046/dual-hdac-and-pi3k-inhibition-abrogates-nf%C3%AE%C2%BAb-and-foxm1-mediated-dna-damage-response-to-radiosensitize-pediatric-high-grade-gliomas
#5
Sharmistha Pal, David Kozono, Xiaodong Yang, Wojciech Fendler, Whitney Fitts, Jing Ni, John A Alberta, Jean Zhao, Kevin X Liu, Jie Bian, Nathalene Truffaux, William A Weiss, Adam C Resnick, Pratiti Bandopadhayay, Keith L Ligon, Steven G Dubois, Sabine Mueller, Dipanjan Chowdhury, Daphne A Haas-Kogan
Aberrant chromatin remodeling and activation of the phosphatidylinositol 3-kinase (PI3K) pathway have been identified as important mediators of pediatric high-grade glioma (pHGG) and diffuse intrinsic pontine glioma (DIPG) pathogenesis. As inhibition of these pathways are promising therapeutic avenues and radiation is the only modality to prolong survival of DIPG patients, we sought to explore radiosensitizing functions of such inhibition and explore mechanisms of action of such agents. Here we demonstrate that combined treatment with radiotherapy and CUDC-907, a novel first-in-class dual inhibitor of histone deacetylases (HDAC) and PI3K, evokes a potent cytotoxic response in pHGG and DIPG models...
May 14, 2018: Cancer Research
https://www.readbyqxmd.com/read/29755954/immune-response-generated-with-the-administration-of-autologous-dendritic-cells-pulsed-with-an-allogenic-tumoral-cell-lines-lysate-in-patients-with-newly-diagnosed-diffuse-intrinsic-pontine-glioma
#6
Daniel Benitez-Ribas, Raquel Cabezón, Georgina Flórez-Grau, Mari Carmen Molero, Patricia Puerta, Antonio Guillen, Sonia Paco, Angel M Carcaboso, Vicente Santa-Maria Lopez, Ofelia Cruz, Carmen de Torres, Noelia Salvador, Manel Juan, Jaume Mora, Andres Morales La Madrid
Background and objective: Diffuse intrinsic pontine glioma (DIPG) is a lethal brainstem tumor in children. Dendritic cells (DCs) have T-cell stimulatory capacity and, therefore, potential antitumor activity for disease control. DCs vaccines have been shown to reactivate tumor-specific T cells in both clinical and preclinical settings. We designed a phase Ib immunotherapy (IT) clinical trial with the use of autologous dendritic cells (ADCs) pulsed with an allogeneic tumors cell-lines lysate in patients with newly diagnosed DIPG after irradiation (radiation therapy)...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29753957/brainstem-blood-brain-barrier-disruption-using-focused-ultrasound-a-demonstration-of-feasibility-and-enhanced-doxorubicin-delivery
#7
Saira Alli, Carlyn A Figueiredo, Brian Golbourn, Nesrin Sabha, Megan Yijun Wu, Andrew Bondoc, Amanda Luck, Daniel Coluccia, Colin Maslink, Christian Smith, Heiko Wurdak, Kullervo Hynynen, Meaghan O'Reilly, James T Rutka
Magnetic Resonance Image-guided Focused Ultrasound (MRgFUS) has been used to achieve transient BBB opening without tissue injury. Delivery of a targeted ultrasonic wave causes an interaction between administered microbubbles and the capillary bed resulting in enhanced vessel permeability. The use of MRgFUS in the brainstem has not previously been shown but could provide value in the treatment of tumours such as Diffuse Intrinsic Pontine Glioma (DIPG) where the intact BBB has contributed to the limited success of chemotherapy...
May 10, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29750732/the-patchy-tremor-landscape-recent-advances-in-pathophysiology
#8
Freek Nieuwhof, Pattamon Panyakaew, Bart P van de Warrenburg, Cecile Gallea, Rick C Helmich
PURPOSE OF REVIEW: We focus on new insights in the pathophysiology of Parkinson's disease tremor, essential tremor, tremor in dystonia, and orthostatic tremor. RECENT FINDINGS: Neuroimaging findings suggest that Parkinson's disease resting tremor is associated with dopaminergic dysfunction, serotonergic dysfunction, or both. Not all tremors in Parkinson's disease have the same pathophysiology: postural tremor in Parkinson's disease can be subdivided into pure postural tremor, which involves nondopaminergic mechanisms, and re-emergent tremor, which has a dopaminergic basis...
May 9, 2018: Current Opinion in Neurology
https://www.readbyqxmd.com/read/29750396/a-phase-1-2-dose-finding-safety-and-activity-study-of-cabazitaxel-in-pediatric-patients-with-refractory-solid-tumors-including-tumors-of-the-central-nervous-system
#9
Peter E Manley, Tanya Trippett, Amy A Smith, Margaret E Macy, Sarah E S Leary, Jessica Boklan, Kenneth J Cohen, Stewart Goldman, Lindsay B Kilburn, Girish Dhall, Jeanne Devin, Cynthia E Herzog, Sonia Partap, Floris Fauchet, Emmy Badreddine, John P Bernard, Susan N Chi
BACKGROUND: This phase 1/2 study (NCT01751308) evaluated cabazitaxel in pediatric patients. Phase 1 determined the maximum tolerated dose (MTD) in patients with recurrent/refractory solid tumors, including central nervous system (CNS) tumors. Phase 2 evaluated activity in pediatric recurrent high-grade glioma (HGG) or diffuse intrinsic pontine glioma (DIPG). PROCEDURE: In phase 1, a 3 + 3 dose-escalation study design was followed. Cabazitaxel was administered at a starting dose of 20 mg/m2 ...
May 11, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29746225/clinical-radiologic-pathologic-and-molecular-characteristics-of-long-term-survivors-of-diffuse-intrinsic-pontine-glioma-dipg-a-collaborative-report-from-the-international-and-european-society-for-pediatric-oncology-dipg-registries
#10
Lindsey M Hoffman, Sophie E M Veldhuijzen van Zanten, Niclas Colditz, Joshua Baugh, Brooklyn Chaney, Marion Hoffmann, Adam Lane, Christine Fuller, Lili Miles, Cynthia Hawkins, Ute Bartels, Eric Bouffet, Stewart Goldman, Sarah Leary, Nicholas K Foreman, Roger Packer, Katherine E Warren, Alberto Broniscer, Mark W Kieran, Jane Minturn, Melanie Comito, Emmett Broxson, Chie-Schin Shih, Soumen Khatua, Murali Chintagumpala, Anne Sophie Carret, Nancy Yanez Escorza, Timothy Hassall, David S Ziegler, Nicholas Gottardo, Hetal Dholaria, Renee Doughman, Martin Benesch, Rachid Drissi, Javad Nazarian, Nada Jabado, Nathalie Boddaert, Pascale Varlet, Géraldine Giraud, David Castel, Stephanie Puget, Chris Jones, Esther Hulleman, Piergiorgio Modena, Marzia Giagnacovo, Manila Antonelli, Torsten Pietsch, Gerrit H Gielen, David T W Jones, Dominik Sturm, Stefan M Pfister, Nicolas U Gerber, Michael A Grotzer, Elke Pfaff, André O von Bueren, Darren Hargrave, Guirish A Solanki, Filip Jadrijevic Cvrlje, Gertjan J L Kaspers, William P Vandertop, Jacques Grill, Simon Bailey, Veronica Biassoni, Maura Massimino, Raphaël Calmon, Esther Sanchez, Brigitte Bison, Monika Warmuth-Metz, James Leach, Blaise Jones, Dannis G van Vuurden, Christof M Kramm, Maryam Fouladi
Purpose Diffuse intrinsic pontine glioma (DIPG) is a brainstem malignancy with a median survival of < 1 year. The International and European Society for Pediatric Oncology DIPG Registries collaborated to compare clinical, radiologic, and histomolecular characteristics between short-term survivors (STSs) and long-term survivors (LTSs). Materials and Methods Data abstracted from registry databases included patients from North America, Australia, Germany, Austria, Switzerland, the Netherlands, Italy, France, the United Kingdom, and Croatia...
May 10, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29742885/malignant-brain-tumours-in-children-present-and-future-perspectives
#11
REVIEW
James T Rutka
In contrast to many of the malignant tumors that occur in the central nervous system in adults, the management, responses to therapy, and future perspectives of children with malignant lesions of the brain hold considerable promise. Within the past 5 years, remarkable progress has been made with our understanding of the basic biology of the molecular genetics of several pediatric malignant brain tumors including medulloblastoma, ependymoma, atypical teratoid rhabdoid tumour, and high grade glioma/diffuse intrinsic pontine glioma...
May 2018: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/29742880/diffuse-intrinsic-pontine-glioma-clinical-features-molecular-genetics-and-novel-targeted-therapeutics
#12
REVIEW
Ryan K Mathew, James T Rutka
Diffuse intrinsic pontine glioma (DIPG) is a deadly paediatric brain cancer. Transient response to radiation, ineffective chemotherapeutic agents and aggressive biology result in rapid progression of symptoms and a dismal prognosis. Increased availability of tumour tissue has enabled the identification of histone gene aberrations, genetic driver mutations and methylation changes, which have resulted in molecular and phenotypic subgrouping. However, many of the underlying mechanisms of DIPG oncogenesis remain unexplained...
May 2018: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/29741745/prospective-feasibility-and-safety-assessment-of-surgical-biopsy-for-patients-with-newly-diagnosed-diffuse-intrinsic-pontine-glioma
#13
Nalin Gupta, Liliana C Goumnerova, Peter Manley, Susan N Chi, Donna Neuberg, Maneka Puligandla, Jason Fangusaro, Stewart Goldman, Tadanori Tomita, Tord Alden, Arthur DiPatri, Joshua B Rubin, Karen Gauvain, David Limbrick, Jeffrey Leonard, J Russel Geyer, Sarah Leary, Samuel Browd, Zhihong Wang, Sandeep Sood, Anne Bendel, Mahmoud Nagib, Sharon Gardner, Matthias A Karajannis, David Harter, Kanyalakshmi Ayyanar, William Gump, Daniel C Bowers, Bradley Weprin, Tobey J MacDonald, Dolly Aguilera, Barunashish Brahma, Nathan J Robison, Erin Kiehna, Mark Krieger, Eric Sandler, Philipp Aldana, Ziad Khatib, John Ragheb, Sanjiv Bhatia, Sabine Mueller, Anu Banerjee, Amy-Lee Bredlau, Sri Gururangan, Herbert Fuchs, Kenneth J Cohen, George Jallo, Kathleen Dorris, Michael Handler, Melanie Comito, Mark Dias, Kellie Nazemi, Lissa Baird, Jeff Murray, Neal Lindeman, Jason L Hornick, Hayley Malkin, Claire Sinai, Lianne Greenspan, Karen D Wright, Michael Prados, Pratiti Bandopadhayay, Keith L Ligon, Mark W Kieran
Background: Diagnosis of diffuse intrinsic pontine gliomas (DIPG) has relied on imaging studies since the appearance is pathognomonic, and surgical risk was felt to be high and unlikely to affect therapy. The DIPG Biology and Treatment Study (DIPG-BATS) reported here incorporated a surgical biopsy at presentation and stratified subjects to receive FDA-approved agents chosen on the basis of specific biologic targets. Methods: Subjects were eligible for the trial if the clinical features and imaging appearance of a newly diagnosed tumor were consistent with a DIPG...
May 5, 2018: Neuro-oncology
https://www.readbyqxmd.com/read/29740431/omics-based-approach-reveals-complement-mediated-inflammation-in-chronic-lymphocytic-inflammation-with-pontine-perivascular-enhancement-responsive-to-steroids-clippers
#14
Morten Blaabjerg, Anne Louise Hemdrup, Lylia Drici, Klemens Ruprecht, Peter Garred, Romana Höftberger, Bjarne W Kristensen, Daniel Kondziella, Tobias Sejbaek, Soren W Hansen, Helle H Nielsen, Pia Jensen, Morten Meyer, Friedemann Paul, Hans Lassmann, Martin R Larsen, Zsolt Illes
Objective: Chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids (CLIPPERS) is a rare syndrome with relapsing brainstem/cerebellar symptoms. To examine the pathogenic processes and investigate potential biomarkers, we analyzed combined materials of brain and cerebrospinal fluid (CSF) by comprehensive methodologies. Materials and methods: To identify major pathways of perivascular inflammation in CLIPPERS, we first compared the CSF proteome ( n  = 5) to a neurodegenerative condition, Alzheimer's disease (AD, n  = 5)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29737455/current-and-future-use-of-chloroquine-and-hydroxychloroquine-in-infectious-immune-neoplastic-and-neurological-diseases-a-mini-review
#15
REVIEW
Domenico Plantone, Tatiana Koudriavtseva
The process of finding new therapeutic indications for currently used drugs, defined as 'repurposing', is receiving growing attention. Chloroquine and hydroxychloroquine, with an original indication to prevent or cure malaria, have been successfully used to treat several infectious (HIV, Q fever, Whipple's disease, fungal infections), rheumatological (systemic lupus erythematosus, antiphospholipid antibody syndrome, rheumatoid arthritis, Sjögren's syndrome), and other immunological diseases. Indeed, they have anti-inflammatory, immunomodulating, anti-infective, antithrombotic, and metabolic effects...
May 8, 2018: Clinical Drug Investigation
https://www.readbyqxmd.com/read/29722152/modulation-of-forebrain-function-by-nucleus-incertus-and-relaxin-3-rxfp3-signaling
#16
REVIEW
Francisco E Olucha-Bordonau, Héctor Albert-Gascó, Francisco Ros-Bernal, Valeria Rytova, Emma K E Ong-Pålsson, Sherie Ma, Ana M Sánchez-Pérez, Andrew L Gundlach
The nucleus incertus (NI) in the pontine tegmentum sends ascending projections to the midbrain, hypothalamus, amygdala, basal forebrain, hippocampus, and prefrontal cortex, and has a postulated role in modulating several forebrain functions. A substantial population of GABAergic NI neurons expresses the neuropeptide, relaxin-3, which acts via the Gi/o -protein-coupled receptor, RXFP3, present throughout the forebrain target regions. Broad and specific manipulations of these systems by activation or inhibition of the NI or modulating RXFP3 signaling have revealed key insights into the likely influence of the NI/relaxin-3/RXFP3 system on modalities including arousal, feeding, stress responses, anxiety and addiction, and attention and memory...
May 2, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29696555/desmopressin-induced-severe-hyponatremia-with-central-pontine-myelinolysis-a-case-report
#17
Tanzib Hossain, Marya Ghazipura, Vineet Reddy, Pedro J Rivera, Vikramjit Mukherjee
Desmopressin, a synthetic vasopressin analog, is used to treat central diabetes insipidus, hemostatic disorders such as von Willebrand's disease, and nocturnal enuresis. We present the case of a 69-year-old man who developed severe hyponatremia during treatment with intranasal desmopressin at 10 µg twice daily for chronic polyuria and nocturia thought to be due to central diabetes insipidus. After 5 months of therapy, the patient noticed progressive fatigue, anorexia, dizziness, weakness, light-headedness, decreased concentration, and new-onset falls...
April 25, 2018: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/29695592/clinical-spectrum-and-prognostic-value-of-cns-mog-autoimmunity-in-adults-the-mogador-study
#18
Alvaro Cobo-Calvo, Anne Ruiz, Elisabeth Maillart, Bertrand Audoin, Helene Zephir, Bertrand Bourre, Jonathan Ciron, Nicolas Collongues, David Brassat, Francois Cotton, Caroline Papeix, Francoise Durand-Dubief, David Laplaud, Romain Deschamps, Mikaël Cohen, Damien Biotti, Xavier Ayrignac, Caroline Tilikete, Eric Thouvenot, Bruno Brochet, Cecile Dulau, Thibault Moreau, Ayman Tourbah, Pierre Lebranchu, Laure Michel, Christine Lebrun-Frenay, Alexis Montcuquet, Guillaume Mathey, Marc Debouverie, Jean Pelletier, Pierre Labauge, Nathalie Derache, Marc Coustans, Fabien Rollot, Jérôme De Seze, Sandra Vukusic, Romain Marignier
OBJECTIVE: To describe clinical and radiologic features associated with myelin oligodendrocyte glycoprotein antibodies (MOG-Ab) in a large French nationwide adult cohort, to assess baseline prognostic features of MOG-Ab-associated diseases after a first acute demyelinating syndrome, and to evaluate the clinical value of MOG-Ab longitudinal analysis. METHODS: Clinical data were obtained from 197 MOG-Ab-positive patients ≥18 years of age. Complete imaging data were available in 108, and 54 serum samples were eligible for longitudinal evaluation...
April 25, 2018: Neurology
https://www.readbyqxmd.com/read/29692521/clinicoradiological-aspects-of-pontine-tegmental-cap-dysplasia-case-report-of-a-rare-hindbrain-malformation
#19
Aanchal Bhayana, Sunil K Bajaj, Ritu N Misra, S Senthil Kumaran
Malformations involving the brainstem are very rare and present with a varied spectrum of clinical symptoms due to multiple cranial nerve palsies and pyramidal tract involvement. Of these, pontine tegmental cap dysplasia is a very unusual malformation, characterized by ventral pons hypoplasia and an ectopic dorsal band of tissue, projecting into the fourth ventricle, from dorsal pontine tegmentum. A 4-year-old male child, presenting with left facial nerve palsy, revealed hypoplastic ventral pons and an ectopic structure on magnetic resonance imaging (MRI)...
January 2018: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/29687030/therapeutic-effect-of-steroids-in-osmotic-demyelination-of-infancy
#20
Lalit R Bansal
An 11-month-old male presented with acute gastroenteritis, seizures, and altered mental status. Laboratory workup revealed serum sodium of 177 mmol/L. Magnetic resonance imaging of the brain showed reduced diffusion in the supratentorial white matter, T2 hyperintensities in the left central pons and midbrain, subacute stroke in the right occipital lobe, and bilateral cerebellar hemorrhagic infarcts. The child was presumed to have hypernatremia-induced central pontine and extrapontine myelinolysis. He received 5 days of high-dose methylprednisolone for persistent encephalopathy and spastic quadriparesis with rapid recovery of his cognitive function and neurological examination...
2018: Child Neurology Open
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