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https://www.readbyqxmd.com/read/28214758/comparative-analysis-of-viral-shedding-in-pediatric-and-adult-subjects-with-central-nervous-system-associated-enterovirus-infections-from-2013-to-2015-in-switzerland
#1
S Cordey, M Schibler, A G L'Huillier, N Wagner, A R Gonçalves, J Ambrosioni, S Asner, L Turin, K M Posfay-Barbe, L Kaiser
BACKGROUND: Several enterovirus (EV) genotypes can result in aseptic meningitis, but their routes of access to the central nervous system remain to be elucidated and may differ between the pediatric and adult populations. OBJECTIVE: To assess the pattern of viral shedding in pediatric and adult subjects with acute EV meningitis and to generate EV surveillance data for Switzerland. STUDY DESIGN: All pediatric and adult subjects admitted to the University Hospitals of Geneva with a diagnosis of EV meningitis between 2013 and 2015 were enrolled...
February 7, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28209987/targeting-phospholipase-d-in-cancer-infection-and-neurodegenerative-disorders
#2
REVIEW
H Alex Brown, Paul G Thomas, Craig W Lindsley
Lipid second messengers have essential roles in cellular function and contribute to the molecular mechanisms that underlie inflammation, malignant transformation, invasiveness, neurodegenerative disorders, and infectious and other pathophysiological processes. The phospholipase D (PLD) isoenzymes PLD1 and PLD2 are one of the major sources of signal-activated phosphatidic acid (PtdOH) generation downstream of a variety of cell-surface receptors, including G protein-coupled receptors (GPCRs), receptor tyrosine kinases (RTKs) and integrins...
February 17, 2017: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/28209182/mesenchymal-stem-cells-alleviate-japanese-encephalitis-virus-induced-neuroinflammation-and-mortality
#3
Peiyu Bian, Chuantao Ye, Xuyang Zheng, Jing Yang, Wei Ye, Yuan Wang, Yun Zhou, Hongwei Ma, Peijun Han, Hai Zhang, Ying Zhang, Fanglin Zhang, Yingfeng Lei, Zhansheng Jia
BACKGROUND: Japanese encephalitis virus (JEV) is the leading cause of viral encephalitis in Asia. Japanese encephalitis (JE) caused by JEV is characterized by extensive inflammatory cytokine secretion, microglia activation, blood-brain barrier (BBB) breakdown, and neuronal death, all of which contribute to the vicious cycle of inflammatory damage. There are currently no effective treatments for JE. Mesenchymal stem cells (MSCs) have been demonstrated to have a therapeutic effect on many central nervous system (CNS) diseases by regulating inflammation and other mechanisms...
February 16, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28208901/a-comparative-study-of-neurological-complications-in-chronic-kidney-disease-with-special-reference-to-its-stages-and-haemodialysis-status
#4
S G Shyam Lakshman, P Ravikumar, Giridhari Kar, Dwijen Das, Kallol Bhattacharjee, Prithwiraj Bhattacharjee
INTRODUCTION: Globally, Chronic Kidney Disease (CKD) is a critical and rapidly growing health problem and also a major cause of mortality and morbidity. Neurological complications occur in all levels of the nervous system. Central nervous system complications include cerebrovascular accidents, posterior reversible encephalopathy syndrome, osmotic demyelization syndrome, cerebral infection and sinus vein thrombosis. Peripheral nervous system complications include polyneuropathy, mononeuropathy and carpal tunnel syndrome...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28207861/in-vitro-anti-herpes-simplex-virus-2-activity-of-salvia-desoleana-atzei-v-picci-essential-oil
#5
Valeria Cagno, Barbara Sgorbini, Cinzia Sanna, Cecilia Cagliero, Mauro Ballero, Andrea Civra, Manuela Donalisio, Carlo Bicchi, David Lembo, Patrizia Rubiolo
Salvia desoleana Atzei & V. Picci is an indigenous species in Sardinia island used in folk medicine to treat menstrual, digestive and central nervous system diseases. Nowadays, it is widely cultivated for the pleasant smell of its essential oil (EO), whose antimicrobial and antifungal activities have already been screened. This study evaluated the in vitro anti-Herpes Simplex Virus-2 (HSV-2) activity of S. desoleana EO, fractions and main components: linalyl acetate, alpha terpinyl acetate, and germacrene D...
2017: PloS One
https://www.readbyqxmd.com/read/28207570/international-survey-of-critically-ill-children-with-acute-neurologic-insults-the-prevalence-of-acute-critical-neurological-disease-in-children-a-global-epidemiological-assessment-study
#6
Ericka L Fink, Patrick M Kochanek, Robert C Tasker, John Beca, Michael J Bell, Robert S B Clark, Jamie Hutchison, Monica S Vavilala, Anthony Fabio, Derek C Angus, R Scott Watson
OBJECTIVE: The international scope of critical neurologic insults in children is unknown. Our objective was to assess the prevalence and outcomes of children admitted to PICUs with acute neurologic insults. DESIGN: Prospective study. SETTING: Multicenter (n = 107 PICUs) and multinational (23 countries, 79% in North America and Europe). PATIENTS: Children 7 days to 17 years old admitted to the ICU with new traumatic brain injury, stroke, cardiac arrest, CNS infection or inflammation, status epilepticus, spinal cord injury, hydrocephalus, or brain mass...
February 15, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28206670/altered-expression-of-cxcr3-and-ccr6-and-their-ligands-in-htlv-1-carriers-and-ham-tsp-patients
#7
Houshang Rafatpanah, Mehdi Felegari, Mahmoud Reza Azarpazhooh, Rosita Vakili, Taraneh Rajaei, Ian Hampson, Golmahossein Hassanshahi, Narges Valizadeh, Sina Gerayli, Hamid Farjifard, Shadi Zamanian, Farzad MollaHosseini, Seyed Abdolrahim Rezaee
Recruitment of leukocytes by chemokines and chemokine receptors to CNS plays a crucial role in the induction of inflammatory response in HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). In the present study, chemokine and chemokine receptors involved in trafficking of lymphocytes to the CNS were measured in HAM/TSP patients, HTLV-1 asymptomatic carriers (ACs), and healthy controls. The PVL, CCR6 and CXCR3 mRNA expression, and CXCL9 and CXCL10 protein levels were measured in all subjects...
February 16, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28202084/aprepitant-limits-in-vivo-neuroinflammatory-responses-in-a-rhesus-model-of-lyme-neuroborreliosis
#8
Alejandra N Martinez, Amanda R Burmeister, Geeta Ramesh, Lara Doyle-Meyers, Ian Marriott, Mario T Philipp
BACKGROUND: Substance P (SP) is produced at high levels in the central nervous system (CNS), and its target receptor, neurokinin 1 receptor (NK-1R), is expressed by glia and leukocytes. This tachykinin functions to exacerbate inflammatory responses at peripheral sites. Moreover, SP/NK-1R interactions have recently been associated with severe neuroinflammation and neuronal damage. We have previously demonstrated that NK-1R antagonists can limit neuroinflammatory damage in a mouse model of bacterial meningitis...
February 15, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28202068/the-dna-damage-response-promotes-polyomavirus-jc-infection-by-nucleus-to-cytoplasm-nf-kappab-activation
#9
Martyn K White, Anna Bellizzi, Gabriele Ibba, Valeria Pietropaolo, Anna T Palamara, Hassen S Wollebo
BACKGROUND: Infection of glial cells by human neurotropic polyomavirus JC (JCV), the causative agent of the CNS demyelinating disease progressive multifocal leukoencephalopathy (PML), rapidly inflicts damage to cellular DNA. This activates DNA damage response (DDR) signaling including induction of expression of DNA repair factor Rad51. We previously reported that Rad51 co-operates with the transcription factor NF-κB p65 to activate JCV early transcription. Thus Rad51 induction by JCV infection may provide positive feedback for viral activation early in JCV infection...
February 15, 2017: Virology Journal
https://www.readbyqxmd.com/read/28201953/acute-hiv-1-infection-presenting-with-fulminant-encephalopathy
#10
Eun J Lee, Young H Kim, Jeong Y Lee, Jun-Sang Sunwoo, Se Y Park, Tae H Kim
Human immunodeficiency virus (HIV)-1 directly affects the nervous system, causes distinct neurological symptoms, and indirectly results in opportunistic infections, which include herpes virus simplex (HSV)-1, HSV-2, varicella zoster virus, and cytomegalovirus encephalitis caused by immunodeficiency. Early HIV-1 invasion of the central nervous system is also possible, and acute encephalopathy is a potentially lethal complication. We encountered a case of fulminant encephalopathy as a primary presentation of acute HIV-1 infection, in which highly active antiretroviral treatment resulted in a full clinical recovery...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28197527/laryngeal-cryptococcus-a-rare-cause-of-hoarseness-in-renal-allograft-recipient
#11
Jashan Sandhu, Jasvinder Singh Sandhu, Harpreet Kaur Puri, Manish Munjal
Cryptococcosis commonly involves central nervous system and lungs in organ transplant recipients. Isolated laryngeal infection is extremely rare. We report a rare case of cryptococcus in a renal allograft recipient that clinically presented with hoarseness of voice and mimicked laryngeal carcinoma on examination.
2017: J Nephropharmacol
https://www.readbyqxmd.com/read/28194643/ultra-efficient-amplification-of-abnormal-prion-protein-by-modified-protein-misfolding-cyclic-amplification-with-electric-current
#12
Jeong-Ho Park, Yeong-Gon Choi, Seok-Joo Park, Hong-Seok Choi, Eun-Kyoung Choi, Yong-Sun Kim
Prion diseases are clinically diagnosed and confirmed upon post-mortem histopathological examination of brain tissue. The only reliable molecular marker for prion diseases is abnormal prion protein (PrPSc), a pathologically conformed prion protein that primarily accumulates in the central nervous system and to a lesser extent in lymphoreticular tissues. However, the use of PrPSc as a marker for preclinical diagnoses is limited because the concentration of PrPSc in easily accessible body fluids is extremely low...
February 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28192476/th40-cells-cd4-cd40-tcells-drive-a-more-severe-form-of-experimental-autoimmune-encephalomyelitis-than-conventional-cd4-t-cells
#13
Gisela M Vaitaitis, Martin G Yussman, Dan M Waid, David H Wagner
CD40-CD154 interaction is critically involved in autoimmune diseases, and CD4 T cells play a dominant role in the Experimental Autoimmune Encephalomyelitis (EAE) model of Multiple Sclerosis (MS). CD4 T cells expressing CD40 (Th40) are pathogenic in type I diabetes but have not been evaluated in EAE. We demonstrate here that Th40 cells drive a rapid, more severe EAE disease course than conventional CD4 T cells. Adoptively transferred Th40 cells are present in lesions in the CNS and are associated with wide spread demyelination...
2017: PloS One
https://www.readbyqxmd.com/read/28191447/reexamining-chronic-toxoplasma-gondii-infection-surprising-activity-for-a-dormant-parasite
#14
Anthony P Sinai, Elizabeth A Watts, Animesh Dhara, Robert D Murphy, Matthew S Gentry, Abhijit Patwardhan
PURPOSE OF REVIEW: Despite over a third of the world's population being chronically infected with Toxoplasma gondii, little is known about this largely asymptomatic phase of infection. This stage is mediated in vivo by bradyzoites within tissue cysts. The absence of overt symptoms has been attributed to the dormancy of bradyzoites. In this review, we reexamine the conventional view of chronic toxoplasmosis in light of emerging evidence challenging both the nature of dormancy and the consequences of infection in the CNS...
December 2016: Current Clinical Microbiology Reports
https://www.readbyqxmd.com/read/28188763/hiv-antiretroviral-drug-efavirenz-induces-anxiety-like-and-depression-like-behavior-in-rats-evaluation-of-neurotransmitter-alterations-in-the-striatum
#15
Giuliana Ignácio Teixeira Cavalcante, Adriano José Maia Chaves Filho, Maria Isabel Linhares, Camila Nayane de Carvalho Lima, Edith Teles Venâncio, Emiliano Ricardo Vasconcelos Rios, Francisca Cléa Florenço de Souza, Silvânia Maria Mendes Vasconcelos, Danielle Macêdo, Marta Maria de França Fonteles
Efavirenz (EFV) is an effective antiretroviral drug with a favorable pharmacokinetic profile and widely used in combination regimens to treat HIV infection. However, there are major concerns about the safety of this drug. Patients treated with EFV often experience neuropsychiatric adverse effects, which frequently lead to switching to alternative EFV-free regimens. The mechanisms involved in the central action of EFV are intrinsically unclear. Thus, this study aimed to investigate the effects of acute and subchronic (2 weeks) EFV administration in a series of behavioral tests for anxiety-like and depression-like behavior in healthy rats...
February 7, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28188174/brain-atrophy-in-picornavirus-infected-fvb-mice-is-dependent-on-the-h-2d-b-class-i-molecule
#16
April M Huseby Kelcher, Pascal A Atanga, Jeffrey D Gamez, Luz M Cumba Garcia, Stephanie J Teclaw, Kevin D Pavelko, Slobodan I Macura, Aaron J Johnson
Brain atrophy is a common feature of numerous neurologic diseases in which the role of neuroinflammation remains ill-defined. In this study, we evaluated the contribution of major histocompatibility complex class I molecules to brain atrophy in Theiler's murine encephalomyelitis virus (TMEV)-infected transgenic FVB mice that express the D(b) class I molecule. FVB/D(b) and wild-type FVB mice were evaluated for changes in neuroinflammation, virus clearance, neuropathology, and development of brain atrophy via T2-weighted MRI and subsequent 3-dimensional volumetric analysis...
February 10, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28187911/what-kaplan-meier-survival-curves-don-t-tell-us-about-cns-disease
#17
Katelyn D Miller, Glenn F Rall
Central nervous system consequences of viral infections are rare, but when they do occur, they are often serious and clinically challenging to manage. Our awareness of the perils of neuroinvasion by viruses is growing: the recently appreciated impact of Ebola and Zika virus infections on CNS integrity, decreases in vaccination coverage for potentially neurotropic viruses such as measles, and increased neurovirulence of some influenza strains collectively highlight the need for a better understanding of the viral-neural interaction...
February 3, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28187816/multimodal-neurologic-monitoring
#18
G Korbakis, P M Vespa
Neurocritical care has two main objectives. Initially, the emphasis is on treatment of patients with acute damage to the central nervous system whether through infection, trauma, or hemorrhagic or ischemic stroke. Thereafter, attention shifts to the identification of secondary processes that may lead to further brain injury, including fever, seizures, and ischemia, among others. Multimodal monitoring is the concept of using various tools and data integration to understand brain physiology and guide therapeutic interventions to prevent secondary brain injury...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28187809/management-of-bacterial-central-nervous-system-infections
#19
M C Brouwer, D van de Beek
Bacterial infections of the central nervous system present as a medical emergency, thus requiring rapid diagnosis and immediate treatment. The most prevalent bacterial infections seen in the intensive care unit can be summarized as acute bacterial meningitis, subdural empyema, intracerebral abscess, and ventriculitis, which all commonly involve the brain parenchyma. The infections can either be community-acquired or hospital-acquired, e.g., after neurosurgical intervention, as a complication of severe neurotrauma or related to indwelling cerebrospinal fluid drains...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28187807/neuropulmonology
#20
A Balofsky, J George, P Papadakos
Neuropulmonology refers to the complex interconnection between the central nervous system and the respiratory system. Neurologic injury includes traumatic brain injury, hemorrhage, stroke, and seizures, and in each there are far-reaching effects that can result in pulmonary dysfunction. Systemic changes can induce impairment of pulmonary function due to changes in the core structure and function of the lung. The conditions and disorders that often occur in these patients include aspiration pneumonia, neurogenic pulmonary edema, and acute respiratory distress syndrome, but also several abnormal respiratory patterns and sleep-disordered breathing...
2017: Handbook of Clinical Neurology
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