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Herpes encephalitis

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https://www.readbyqxmd.com/read/29629704/autoimmune-encephalitis-following-herpes-simplex-virus-encephalitis-in-an-infant
#1
LETTER
Venkateswari Ramesh, Janani Sankar
No abstract text is available yet for this article.
March 15, 2018: Indian Pediatrics
https://www.readbyqxmd.com/read/29629396/anti-nmda-receptor-encephalitis-and-nonencephalitic-hsv-1-infection
#2
Amy Salovin, Jason Glanzman, Kylie Roslin, Thais Armangue, David R Lynch, Jessica A Panzer
Objective: To determine whether there is an association between nonencephalitic herpes simplex virus 1 (HSV-1) infection and anti-NMDA receptor encephalitis (anti-NMDARE). Methods: Antibody testing was performed using samples from 2 cohorts in a case-control observational study. The cohort "Philadelphia" included 16 serum samples of pediatric anti-NMDARE cases and 42 age-matched controls with other neuroinflammatory disorders studied at the Children's Hospital of Philadelphia and University of Pennsylvania...
July 2018: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/29626021/acute-encephalitis-diagnosis-and-management
#3
Mark Ellul, Tom Solomon
Encephalitis, inflammation of the brain, is most commonly caused by a viral infection (especially herpes simplex virus [HSV] type 1 in the UK) although autoimmune causes, such as N-methyl D-aspartate receptor (NMDAR) antibody encephalitis, are increasingly recognised. Most patients present with a change in consciousness level and may have fever, seizures, movement disorder or focal neurological deficits. Diagnosis hinges crucially on lumbar puncture and cerebrospinal fluid (CSF) examination, but imaging and electroencephalography (EEG) may also be helpful...
March 2018: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/29622669/secular-trends-in-infection-related-mortality-after-kidney-transplantation
#4
Susanna Kinnunen, Pauli Karhapää, Auni Juutilainen, Patrik Finne, Ilkka Helanterä
BACKGROUND AND OBJECTIVES: Infections are the most common noncardiovascular causes of death after kidney transplantation. We analyzed the current infection-related mortality among kidney transplant recipients in a nationwide cohort in Finland. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Altogether, 3249 adult recipients of a first kidney transplant from 1990 to 2012 were included. Infectious causes of death were analyzed, and the mortality rates for infections were compared between two eras (1990-1999 and 2000-2012)...
April 5, 2018: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29604359/herpes-simplex-virus-virucidal-activity-of-mst-312-and-epigallocatechin-gallate
#5
Prajakta Pradhan, Marie L Nguyen
Herpes Simplex Virus (HSV) is the cause of cold sores, blindness and encephalitis and often leads to recurrent infections. Use of current anti-viral therapies can be limited when drug resistant HSV mutants arise. Thus, novel drugs for the treatment of HSV are needed. Previous research in our laboratory has determined that the telomerase inhibitor, MST-312, interferes with multiple steps of the HSV life cycle. The structure of MST-312 contains moieties related to a natural compound found in green tea, epigallocatechin gallate (EGCG)...
March 28, 2018: Virus Research
https://www.readbyqxmd.com/read/29599011/anti-n-methyl-d-aspartate-receptor-encephalitis-in-children-incidence-and-experience-in-hong-kong
#6
Alvin Chi-Chung Ho, Sophelia Hoi-Shan Chan, Eric Chan, Sheila Suet-Na Wong, Sharon Tsui-Hang Fung, Sharon Wan-Wah Cherk, Eva Lai-Wah Fung, Kam-Hung Ma, Kwing-Wan Tsui, Eric Kin-Cheong Yau, Virginia Chun-Nei Wong
AIM: The study aims to analyze the incidence, clinical features, investigation findings and treatment outcomes of anti-N-methyl-d-aspartate receptor encephalitis in children from Hong Kong. METHOD: A retrospective study was carried out on paediatric patients diagnosed with anti-NMDAR encephalitis in Hong Kong from January 2009 to December 2015. RESULTS: Fifteen patients (67% female, 93% Chinese) were identified over seven years and the estimated incidence in Hong Kong was 2...
March 26, 2018: Brain & Development
https://www.readbyqxmd.com/read/29590177/emergence-of-orientia-tsutsugamushi-as-an-important-cause-of-acute-encephalitis-syndrome-in-india
#7
Parul Jain, Shantanu Prakash, Piyush K Tripathi, Archana Chauhan, Shikha Gupta, Umesh Sharma, Anil K Jaiswal, Devraj Sharma, Amita Jain
BACKGROUND: Acute Encephalitis Syndrome (AES) is a major seasonal public health problem in Bihar, India. Despite efforts of the Bihar health department and the Government of India, burden and mortality of AES cases have not decreased, and definitive etiologies for the illness have yet to be identified. OBJECTIVES: The present study was undertaken to study the specific etiology of AES in Bihar. METHODS: Cerebrospinal fluid and/or serum samples from AES patients were collected and tested for various pathogens, including viruses and bacteria by ELISA and/or Real Time PCR...
March 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29582466/unique-cell-tropism-of-hhv-6b-in-an-infantile-autopsy-case-of-primary-hhv-6b-encephalitis
#8
Hiroaki Miyahara, Kouki Miyakawa, Haruto Nishida, Shinji Yano, Tomoko Sonoda, So-Ichi Suenobu, Tatsuro Izumi, Tsutomu Daa, Kenji Ihara
Human herpes virus 6 (HHV-6) is known to cause primary encephalitis in the frontal lobes/cerebral hemisphere or reactivated encephalitis in the hippocampus, but the pathogenesis remains unclear. HHV-6B has also been detected in hippocampal samples in patients with mesial temporal lobe epilepsy. A 1 year and 3 months old female, who had been clinically diagnosed with exanthema subitum and febrile convulsion, was found dead on the third day after onset. Macroscopic findings showed massive brain edema. Microscopic examination revealed gemistocytic astrocytes and ballooned oligodendrocytes in the frontal white matter, along with neuronal cell death with microglial infiltration in the frontal cortex...
March 26, 2018: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29573378/why-do-herpes-simplex-encephalitis-and-semantic-dementia-show-a-different-pattern-of-semantic-impairment-in-spite-of-their-main-common-involvement-within-the-anterior-temporal-lobes
#9
Guido Gainotti
A very challenging problem in the domain of the cognitive neurosciences is to explain why herpes simplex encephalitis and semantic dementia show, respectively, a category-specific semantic disorder for biological entities and an across-categories semantic disruption, despite highly overlapping areas of anterior temporal lobe damage. The aim of the present review consisted in trying to make a separate survey of anatomo-clinical investigations (single-case studies and group studies) and of activation studies, in order to analyse the factors that could explain these different patterns of semantic disruption...
March 24, 2018: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/29564192/herpes-simplex-virus-encephalitis-atypical-presentation-as-a-right-middle-cerebral-artery-stroke
#10
Maria Shoaib, Jacqueline J Kraus, Muhammad T Khan
Herpes simplex virus encephalitis (HSVE) is a medical emergency associated with high mortality and morbidity. Definitive diagnosis is established by history, clinical examination, neuroimaging studies, supportive electroencephalogram (EEG) findings, and cerebrospinal fluid (CSF) analysis. We report a case of HSVE presenting as a stroke mimic in a 76-year-old female with a history of atrial fibrillation on warfarin. She was admitted to our medical intensive care unit with intermittent fever, lethargy, and new onset left-sided hemiparesis...
January 15, 2018: Curēus
https://www.readbyqxmd.com/read/29549218/clinical-and-pathogenic-significance-of-igg-iga-and-igm-antibodies-against-the-nmda-receptor
#11
Makoto Hara, Eugenia Martinez-Hernandez, Helena Ariño, Thais Armangué, Marianna Spatola, Mar Petit-Pedrol, Albert Saiz, Myrna R Rosenfeld, Francesc Graus, Josep Dalmau
OBJECTIVE: To determine the frequency and clinical relevance of immunoglobulin (Ig)G, IgA, and IgM N -methyl-d-aspartate receptor (NMDAR) antibodies in several diseases, and whether the IgG antibodies occur in disorders other than anti-NMDAR encephalitis. METHODS: Evaluation of IgG, IgA, and IgM NMDAR antibodies in serum of 300 patients with anti-NMDAR encephalitis, stroke, dementia, schizophrenia, or seronegative autoimmune encephalitis. Antibodies and their effect on cultured neurons were examined with cell-based assays and brain and live neuronal immunostaining...
April 17, 2018: Neurology
https://www.readbyqxmd.com/read/29531617/epidemiological-profile-of-acute-viral-encephalitis-in-a-sample-of-egyptian-children
#12
Bassant Meligy, Dalia Kadry, Iman H Draz, Huda Marzouk, Nevine R El Baroudy, Amira Sayed El Rifay
INTRODUCTION: Acute encephalitis syndrome (AES) is a considerable public health problem. AIM: This study was designed to describe the aetiology, demographic features, clinical picture, short-term outcome and risk factors of mortality of children with viral encephalitis in Egyptian children. METHODS: PCR detection of viruses in the CSF of pediatric patients admitted to the pediatric unit or ICU Cairo University Pediatric hospital presenting with encephalitis syndrome...
February 15, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29521099/disruption-of-the-blood-brain-barrier-is-vital-property-of-neurotropic-viral-infection-of-the-central-nervous-system
#13
M M Jamil Al-Obaidi, A Bahadoran, S M Wang, R Manikam, Ch S Raju, S D Sekaran
The blood brain barrier consisting of astrocytes, pericytes and brain microvascular endothelial cells plays a vital role in the pathogenesis of neurotropic viruses by controlling the access of circulating molecules, immune cells or viruses into the central nervous system (CNS). However, this barrier is not impenetrable and neuroviruses have evolved to disrupt and evade it. This review aims to describe the underlying entry mechanisms of several neuroviruses such as (Japanese encephalitis virus (JEV), West Nile virus (WNV), Zika virus (ZIKV), Nipah virus (NiV), Rabies virus (RABV), Herpes simplex virus (HSV) and Human immunodeficiency virus (HIV)) into the CNS through BBB disruption...
2018: Acta Virologica
https://www.readbyqxmd.com/read/29519969/-an-autopsy-case-of-meningoencephalitis-and-cerebral-infarction-that-developed-with-ramsay-hunt-syndrome-and-disseminated-herpes-zoster
#14
Nobuo Yamashiro, Takamura Nagasaka, Naoki Ooishi, Mai Tsuchiya, Ryusuke Takaki, Fumikazu Kobayashi, Kazumasa Shindo, Yoshihisa Takiyama
We report here the clinical presentation and subsequent autopsy of a 90-year-old man who developed small papules with pain and swelling in his right ear. On admission, he exhibited right facial nerve paralysis, neck stiffness and Kernig's sign. The cell count was elevated and the varicella-zoster virus-PCR was positive in the CSF. Brain magnetic resonance imaging showed hyperintense lesions in the left pons and left temporal lobe, in FLAIR images. We diagnosed the patient with Ramsay Hunt syndrome and meningoencephalitis due to varicella-zoster virus...
March 2018: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/29514899/role-of-microvesicles-in-the-spread-of-herpes-simplex-virus-type-1-in-oligodendrocytic-cells
#15
Raquel Bello-Morales, Beatriz Praena, Carmen de la Nuez, María Teresa Rejas, Milagros Guerra, Marcos Galán, Manuel Izquierdo, Víctor Calvo, Claude Krummenacher, José Antonio López-Guerrero
Herpes simplex virus type 1 (HSV-1) is a neurotropic pathogen that can infect many types of cells and establishes latent infections in neurons of sensory ganglia. In some cases, the virus spreads into the CNS causing encephalitis or meningitis. Cells infected with several different types of viruses may secrete microvesicles containing viral proteins and RNAs. In some instances, extracellular microvesicles harboring infectious virus have been found. Here we describe the features of shedding microvesicles released by the human oligodendroglial HOG cell line infected with HSV-1 and their participation in the viral cycle...
March 7, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29512478/pediatric-acute-severe-neurologic-illness-and-injury-in-an-urban-and-a-rural-hospital-in-the-democratic-republic-of-the-congo
#16
Taty Tshimangani, Jean Pongo, Joseph Bodi Mabiala, Marcel Yotebieng, Nicole F O'Brien
Empirical knowledge suggests that acute neurologic disorders are common in sub-Saharan Africa, but studies examining the true burden of these diseases in children are scarce. We performed this prospective, observational study to evaluate the prevalence, clinical characteristics, treatment approaches, and outcomes of children suffering acute neurologic illness or injury (ANI) in an urban and rural site in the Democratic Republic of the Congo. Over 12 months, 471 out of 6,563 children admitted met diagnostic criteria for ANI, giving a hospital-based prevalence of 72/1,000 admissions...
March 5, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29505789/toll-like-receptor-3-activation-impairs-excitability-and-synaptic-activity-via-trif-signalling-in-immature-rat-and-human-neurons
#17
Louise Ritchie, Rothwell Tate, Luke H Chamberlain, Graham Robertson, Michele Zagnoni, Teresa Sposito, Selina Wray, John A Wright, Clare E Bryant, Nicholas J Gay, Trevor J Bushell
Toll like receptor 3 (TLR3) belongs to a family of pattern recognition receptors that recognise molecules found on pathogens referred to as pathogen associated molecular patterns (PAMPs). Its involvement in innate immunity is well known but despite its presence in the central nervous system (CNS), our knowledge of its function is limited. Here, we have investigated whether TLR3 activation modulates synaptic activity in primary hippocampal cultures and induced pluripotent stem cell (iPSC)-derived neurons. Synaptically driven spontaneous action potential (AP) firing was significantly reduced by the TLR3 specific activator, poly I:C, in a concentration-dependent manner following both short (5 min) and long exposures (1h) in rat hippocampal cultures...
March 2, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29499442/autoimmune-gfap-astrocytopathy-after-viral-encephalitis-a-case-report
#18
Jie Li, Yan Xu, Haitao Ren, Yicheng Zhu, Bin Peng, Liying Cui
Autoimmune glial fibrillary acidic protein (GFAP) astrocytopathy is a novel autoimmune disease. This is the first report of a case of autoimmune GFAP astrocytopathy after herpes simplex viral encephalitis (HSVE). A 35-year-old female patient presented with a combination of headache, fever, seizure and psychiatric/behavioral abnormalities. She had GFAP-IgG in both serum and cerebrospinal fluid (CSF). Magnetic resonance imaging (MRI) with gadolinium-enhancement revealed linear enhancement oriented radially to the ventricles...
February 19, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29492128/a-rare-case-of-concurrent-herpes-simplex-encephalitis-and-glioblastoma-multiforme
#19
Parag Sayal, Arif Zafar, Robin Highley
Herpes encephalitis superimposed on an intracranial malignancy has previously been described mainly in the context of malignancy imitating infection or in the postoperative setting after neurosurgical intervention. We report a rare case of de novo presentation of concurrent herpes encephalitis and glioblastoma. A 63-year-old man presented with status epilepticus and subsequent magnetic resonance imaging (MRI) brain showed a right temporal enhancing lesion with mass effect. He underwent a craniotomy and debulking of this lesion, which on subsequent histology was positive for herpes simplex virus (HSV) antigens and HSV DNA was confirmed by polymerase chain reaction analysis...
January 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29478004/herpes-simplex-virus-hsv-encephalitis-in-a-young-man-an-unusual-course
#20
Amos Lal, Megha C Dhamne, Andrew C Hui, Aftab Ahmad
We present a case of cerebral venous sinus thrombosis (CVST) as a rare complication of herpes simplex virus (HSV) encephalitis. A young man with no pertinent medical history was diagnosed with HSV encephalitis. After initial treatment, he showed improvement in symptomatology until day 6 when he acutely developed new neurological deficits. An urgent MRI brain showed changes in left temporal lobe consistent with HSV encephalitis and lack of flow void in superior sagittal sinus. Subsequent magnetic resonance venography confirmed the diagnosis of superior sagittal sinus thrombosis along with thrombosis of bilateral frontoparietal cortical draining veins...
February 24, 2018: BMJ Case Reports
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