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https://www.readbyqxmd.com/read/28220392/zika-virus-disease-and-associated-neurologic-complications
#1
REVIEW
Lindsey M Duca, J David Beckham, Kenneth L Tyler, Daniel M Pastula
PURPOSE OF REVIEW: The purpose of this article is to review what is currently known about Zika virus (ZIKV) disease and associated neurologic complications. RECENT FINDINGS: ZIKV is a mosquito-borne or sexually transmitted flavivirus rapidly spreading throughout the Americas. While ZIKV infection is usually asymptomatic, it may cause a non-specific illness with fever, rash, myalgia, headache, and/or non-purulent conjunctivitis. Additionally, ZIKV has been associated with a number of neurologic complications including microcephaly and other birth defects, Guillain-Barré syndrome, meningoencephalitis, myelitis, and various ophthalmologic abnormalities...
January 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/28207003/relapsing-polychondritis-with-meningoencephalitis
#2
Monica Tsai, Mengjun Hu, Jamie Zussman, Scott Worswick
Relapsing polychondritis (RP) is a rare autoimmune disease of the cartilaginous structures of the body with many systemic manifestations including meningoencephalitis (ME). We present a case of a man with RP-associated ME that was responsive to steroid treatment. An updated literature review of 7 cases of RP-associated ME also is provided. Early diagnosis of this condition may be of benefit to this select population of patients, and further research regarding the prognosis, mechanisms, and treatment of RP may be necessary in the future...
January 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28198671/transcriptome-analysis-reveals-dynamic-changes-in-coxsackievirus-a16-infected-hek-293t-cells
#3
Jun Jin, Rujiao Li, Chunlai Jiang, Ruosi Zhang, Xiaomeng Ge, Fang Liang, Xin Sheng, Wenwen Dai, Meili Chen, Jiayan Wu, Jingfa Xiao, Weiheng Su
BACKGROUND: Coxsackievirus A16 (CVA16) and enterovirus 71 (EV71) are two of the major causes of hand, foot and mouth disease (HFMD) world-wide. Although many studies have focused on infection and pathogenic mechanisms, the transcriptome profile of the host cell upon CVA16 infection is still largely unknown. RESULTS: In this study, we compared the mRNA and miRNA expression profiles of human embryonic kidney 293T cells infected and non-infected with CVA16. We highlighted that the transcription of SCARB2, a cellular receptor for both CVA16 and EV71, was up-regulated by nearly 10-fold in infected cells compared to non-infected cells...
January 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28192576/herpes-simplex-virus-in-the-neonate
#4
Amy Wang, Julie Wohrley, Julia Rosebush
Neonatal herpes simplex virus (HSV) disease is a serious, life-threatening condition that should be considered in neonates with fever, vesicular rash, culture negative sepsis, and/or seizure activity. Because signs and symptoms of neonatal HSV may closely resemble those of bacterial sepsis, a thorough history and appropriate testing are imperative to accurately confirm the diagnosis. Failure to treat vesicular lesions from HSV in the neonate leads to an approximate 75% chance of progression to disseminated disease and/or meningoencephalitis...
February 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28186996/harnessing-rna-sequencing-for-global-unbiased-evaluation-of-two-new-adjuvants-for-dendritic-cell-immunotherapy
#5
Till S M Mathan, Johannes Textor, Annette E Sköld, Inge Reinieren-Beeren, Tom van Oorschot, Mareke Brüning, Carl G Figdor, Sonja I Buschow, Ghaith Bakdash, I Jolanda M de Vries
Effective stimulation of immune cells is crucial for the success of cancer immunotherapies. Current approaches to evaluate the efficiency of stimuli are mainly defined by known flow cytometry-based cell activation or cell maturation markers. This method however does not give a complete overview of the achieved activation state and may leave important side effects unnoticed. Here, we used an unbiased RNA sequencing (RNA-seq)-based approach to compare the capacity of four clinical-grade dendritic cell (DC) activation stimuli used to prepare DC-vaccines composed of various types of DC subsets; the already clinically applied GM-CSF and Frühsommer meningoencephalitis (FSME) prophylactic vaccine and the novel clinical grade adjuvants protamine-RNA complexes (pRNA) and CpG-P...
February 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28185626/prevalence-of-concomitant-acute-bacterial-meningitis-in-neonates-with-febrile-urinary-tract-infection-a-retrospective-cross-sectional-study
#6
Sowdhamini S Wallace, Danielle N Brown, Andrea T Cruz
OBJECTIVE: To describe the frequency of concomitant acute bacterial meningitis (ABM) in neonates with febrile urinary tract infection (UTI). STUDY DESIGN: This was a retrospective cross-sectional study from 2005 to 2013 of infants ≤30 days old evaluated in the emergency department of a quaternary care children's hospital with fever and laboratory-confirmed UTI. Definite ABM was defined as cerebrospinal fluid (CSF) culture with growth of pathogenic bacteria and probable ABM if pleocytosis with ≥ 20 white blood cell was present in an antibiotic-pretreated patient...
February 6, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28182102/a-case-report-of-nonvasculitic-autoimmune-inflammatory-meningoencephalitis-with-sensory-ganglionopathy-a-rare-presentation-of-sj%C3%A3-gren-syndrome
#7
João Peres, Simão Cruz, Rita Oliveira, Luís Santos, Ana Valverde
A 68-year-old Caucasian female was admitted to the emergency department with a progressive history of behavioural symptoms and anxiety followed by visual and auditory hallucinations, forgetfulness, and impaired gait in the previous 3 months. On examination she was psychotic and had a postural and rest tremor of the upper limbs, cogwheel rigidity of the four limbs, retropulsion on standing position, and inability to walk. During the following 2 weeks she developed xerostomia and unilateral parotiditis that improved with steroids...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28178428/effect-of-histophilus-somni-on-heart-and-brain-microvascular-endothelial-cells
#8
D O'Toole, R Hunter, T Allen, B Zekarias, J Lehmann, K S Kim, D Grab, L B Corbeil
Histophilus somni is a pathogenic gram-negative bacterium responsible for pneumonia and septicemia in cattle. Sequelae include infectious thrombotic meningoencephalitis (ITME), myocarditis, arthritis, and abortion. These syndromes are associated with widespread vasculitis and thrombosis, implicating a role for endothelium in pathogenesis. Histopathologic and immunohistochemical investigation of 10 natural cases of bovine H. somni myocarditis and 1 case of ITME revealed intravascular H. somni in large biofilm-like aggregates adherent to the luminal surface of microvascular endothelium...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28174559/zika-virus-chikungunya-virus-and-dengue-virus-in-cerebrospinal-fluid-from-adults-with-neurological-manifestations-guayaquil-ecuador
#9
Nathalie Acevedo, Jesse Waggoner, Michelle Rodriguez, Lissette Rivera, José Landivar, Benjamin Pinsky, Hector Zambrano
Zika virus (ZIKV), chikungunya virus (CHIKV), and dengue virus (DENV) have been associated with clinical presentations that involve acute neurological complaints. In the current study, we identified ZIKV, CHIKV, and DENV in cerebrospinal fluid (CSF) samples from patients admitted to the Hospital Luis Vernaza (Guayaquil, Ecuador) to the Emergency Room or the Intensive Care Unit, with neurological symptoms and/or concern for acute arboviral infections. Viral RNA from one or more virus was detected in 12/16 patients...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28173871/characterization-and-pathogenesis-of-aerosolized-eastern-equine-encephalitis-in-the-common-marmoset-callithrix-jacchus
#10
Aimee I Porter, Rebecca A Erwin-Cohen, Nancy Twenhafel, Taylor Chance, Steven B Yee, Steven J Kern, David Norwood, Laurie J Hartman, Michael D Parker, Pamela J Glass, Luis DaSilva
BACKGROUND: Licensed antiviral therapeutics and vaccines to protect against eastern equine encephalitis virus (EEEV) in humans currently do not exist. Animal models that faithfully recapitulate the clinical characteristics of human EEEV encephalitic disease, including fever, drowsiness, anorexia, and neurological signs such as seizures, are needed to satisfy requirements of the Food and Drug Administration (FDA) for clinical product licensing under the Animal Rule. METHODS: In an effort to meet this requirement, we estimated the median lethal dose and described the pathogenesis of aerosolized EEEV in the common marmoset (Callithrix jacchus)...
February 7, 2017: Virology Journal
https://www.readbyqxmd.com/read/28169282/anti-apoptotic-effects-of-sonic-hedgehog-signalling-through-oxidative-stress-reduction-in-astrocytes-co-cultured-with-excretory-secretory-products-of-larval-angiostrongylus-cantonensis
#11
Kuang-Yao Chen, Cheng-Hsun Chiu, Lian-Chen Wang
Angiostrongylus cantonensis, the rat lungworm, is an important aetiologic agent of eosinophilic meningitis and meningoencephalitis in humans. Co-culturing astrocytes with soluble antigens of A. cantonensis activated the Sonic hedgehog (Shh) signalling pathway and inhibited the apoptosis of astrocytes via the activation of Bcl-2. This study was conducted to determine the roles of the Shh signalling pathway, apoptosis, and oxidative stress in astrocytes after treatment with excretory-secretory products (ESP) from A...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28164314/a-probable-case-of-west-nile-virus-transfusion-transmission
#12
Jamel A Groves, Hedyeh Shafi, Jim H Nomura, Ross M Herron, Devin Baez, Roger Y Dodd, Susan L Stramer
BACKGROUND: Transfusion-transmitted West Nile virus (WNV) infection is infrequent as a result of minipool (MP) and individual-donation (ID) nucleic acid testing (NAT) of blood donations. ID-NAT is triggered on the basis of local WNV activity identified by MP-NAT. STUDY DESIGN AND METHODS: A 78-year-old male patient who was treated for cardiac disease received 14 blood components from 30 donors in August 2016. He was discharged 7 days after aortic valve replacement and coronary bypass surgery, but was re-admitted on Day 12 with symptoms of viral infection, and eventually was diagnosed with aseptic meningitis...
February 5, 2017: Transfusion
https://www.readbyqxmd.com/read/28143979/trojan-horse-transit-contributes-to-blood-brain-barrier-crossing-of-a-eukaryotic-pathogen
#13
Felipe H Santiago-Tirado, Michael D Onken, John A Cooper, Robyn S Klein, Tamara L Doering
: The blood-brain barrier (BBB) protects the central nervous system (CNS) by restricting the passage of molecules and microorganisms. Despite this barrier, however, the fungal pathogen Cryptococcus neoformans invades the brain, causing a meningoencephalitis that is estimated to kill over 600,000 people annually. Cryptococcal infection begins in the lung, and experimental evidence suggests that host phagocytes play a role in subsequent dissemination, although this role remains ill defined...
January 31, 2017: MBio
https://www.readbyqxmd.com/read/28139432/clinical-features-and-prognostic-factors-of-listeriosis-the-monalisa-national-prospective-cohort-study
#14
Caroline Charlier, Élodie Perrodeau, Alexandre Leclercq, Benoît Cazenave, Benoît Pilmis, Benoît Henry, Amanda Lopes, Mylène M Maury, Alexandra Moura, François Goffinet, Hélène Bracq Dieye, Pierre Thouvenot, Marie-Noëlle Ungeheuer, Mathieu Tourdjman, Véronique Goulet, Henriette de Valk, Olivier Lortholary, Philippe Ravaud, Marc Lecuit
BACKGROUND: Listeriosis is a severe foodborne infection and a notifiable disease in France. We did a nationwide prospective study to characterise its clinical features and prognostic factors. METHODS: MONALISA was a national prospective observational cohort study. We enrolled eligible cases declared to the National Reference Center for Listeria (all microbiologically proven) between Nov 3, 2009, and July 31, 2013, in the context of mandatory reporting. The outcomes were analysis of clinical features, characterisation of Listeria isolates, and determination of predictors of 3-month mortality or persisting impairment using logistic regression...
January 28, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28131384/seroprevalence-of-west-nile-virus-antibodies-in-equids-in-the-north-east-of-algeria-and-detection-of-virus-circulation-in-2014
#15
Ismail Lafri, Christine M Prat, Idir Bitam, Patrick Gravier, Mohamed Besbaci, Fayçal Zeroual, Meriem Hind Ben-Mahdi, Bernard Davoust, Isabelle Leparc-Goffart
West Nile fever (WNF) is a viral disease of wild birds transmitted by mosquitoes. Humans and equids can also be affected and suffer from meningoencephalitis. In Algeria, since the 1994 epidemic, no data on WNV circulation was available until 2012. In September 2012, a fatal human case of WNV neuro-invasive infection occurred in Jijel province. This study describes the first seroprevalence study of West Nile virus (WNV) antibodies conducted in the equine population in Algeria. During 2014, serum samples were collected from 293 equids (222 donkeys and 71 horses) asymptomatic and unvaccinated for WNV in three localities in Northeastern wetlands of Algeria...
February 2017: Comparative Immunology, Microbiology and Infectious Diseases
https://www.readbyqxmd.com/read/28130864/complex-roles-of-annexin-a2-in-host-blood-brain-barrier-invasion-by-cryptococcus-neoformans
#16
Wei Fang, Zhen-Zong Fa, Qun Xie, Gui-Zhen Wang, Jiu Yi, Chao Zhang, Guang-Xun Meng, Ju-Lin Gu, Wan-Qing Liao
INTRODUCTION: Fungal transversal across the brain microvascular endothelial cells (BMECs) is the essential step for the development of cryptococcal meningoencephalitis. Annexin A2 (AnxA2) is an important signaling protein involved in several intracellular processes such as membrane trafficking, endocytosis, and exocytosis. AIM: To investigate the roles and mechanism of AnxA2 during cryptococcal transversal of BMECs. RESULTS: Cryptococcus neoformans infection initiated upregulation of AnxA2 in mouse BMECs...
January 28, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28129874/50-years-ago-in-the-journal-of-pediatrics-primary-meningoencephalitis-infection-with-hartmannella-acanthamoeba
#17
Piyush Gupta
No abstract text is available yet for this article.
February 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28116411/meningoencephalitis-caused-by-pathogenic-sarcocystis-species-in-a-naturally-infected-sheep-in-turkey
#18
Aylin Alasonyalilar-Demirer, M Mufit Kahraman, Ahmet Akkoç, S Pelin Erturkuner, E Elif Guzel, Oguz Kul, Volkan Ipek
A 3-year-old sheep was examined after an acute onset of hind limb paralysis and ataxia. At necropsy, central nervous system, pulmonary and intestinal hyperaemia and ecchymoses in the aortic arch were observed. Main microscopic lesions were confined to the heart, cerebrum and cerebellum. There were a multifocal mild myocarditis and nonsuppurative meningoencephalitis together with protozoal cysts in the heart and the brain. Protozoal cystic structures were observed within many of the myocardial fibers as well as in the cerebrum and cerebellum...
February 9, 2017: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
https://www.readbyqxmd.com/read/28115665/successfully-managed-acute-transverse-myelitis-related-to-scrub-typhus-and-serial-image-findings
#19
Jae Sung Yun, Ji Soo Song, Eun Jung Choi, Jeong-Hwan Hwang, Chang-Seop Lee, Eun Hae Park
Central nervous system involvement manifesting as meningitis or meningoencephalitis is a known complication of scrub typhus, but very few spinal cord lesions such as acute transverse myelitis (ATM) have been reported in association with this disease. Scrub typhus patients with a spinal lesion present with neurologic symptoms including dysuria, motor, and sensory weakness. Herein, we describe a rare case of ATM associated with scrub typhus. Clinical characteristics, cerebrospinal fluid cytology, Orientia tsutsugamushi serum antibody titer, and serial magnetic resonance imaging scans resulted in a diagnosis of ATM associated with scrub typhus...
January 23, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28114150/chronic-eosinophilic-meningoencephalitis-by-prototheca-wickerhamii-in-an-immunocompetent-boy
#20
Ari Ahn, Yong-Joon Choe, Jeonghyun Chang, Duckhee Kim, Heungsup Sung, Mi-Na Kim, Seok Ho Hong, Jina Lee, Mi-Sun Yum, Tae-Sung Ko
Human protothecosis is mainly a cutaneous infection caused by the Prototheca species. Prototheca wickerhamii is an established pathogen of eosinophilic meningoencephalitis in dogs, but no eosinophilic pleocytosis of the cerebrospinal fluid has been reported in human cases of meningitis. Herein, we report a case of chronic protothecosis manifesting eosinophilic meningoencephalitis in an immunocompetent boy.
January 19, 2017: Pediatric Infectious Disease Journal
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