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Encephalitis herpes virus

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https://www.readbyqxmd.com/read/30102488/acute-peripheral-facial-paralysis-following-varicella-infection-an-uncommon-complication
#1
Damla Hanalioğlu, Yasemin Özsürekci, Ayşe Büyükçam, Ayşe Gültekingil-Keser, Özlem Tekşam, Mehmet Ceyhan
Hanalioğlu D, Özsürekci Y, Büyükçam A, Gültekingil-Keser A, Tekşam Ö, Ceyhan M. Acute peripheral facial paralysis following varicella infection: An uncommon complication. Turk J Pediatr 2018; 60: 99-101. Chickenpox is caused by varicella zoster virus (VZV/HHV-3), which is one of the eight human herpes viruses. Although chickenpox has a good prognosis, neurologic complications including encephalitis, acute cerebellar ataxia, myelitis and meningitis may seldom be associated with the disease. Peripheral facial palsy (PFP) is an extremely rare complication in patients with chickenpox...
2018: Turkish Journal of Pediatrics
https://www.readbyqxmd.com/read/30094631/both-irf3-and-especially-irf7-play-a-key-role-to-orchestrate-an-effective-cerebral-inflammatory-response-in-a-mouse-model-of-herpes-simplex-virus-encephalitis
#2
Coraline Canivet, Chantal Rhéaume, Manon Lebel, Jocelyne Piret, Jean Gosselin, Guy Boivin
The impact of a deficiency in interferon regulatory factor (IRF)3 and IRF7 was evaluated in an herpes simplex virus encephalitis (HSE) model. Compared to wild type (WT), the mortality rates of infected IRF3-/- and IRF7-/- mice were higher and associated with increased brain viral titers. At a critical time post-infection, IRF7-/- mice exhibited a deficit in IFN-β production. At a later time point, levels of type I IFNs and cytokines were increased in brains of both deficient mice compared to WT. Our results suggest that IRF3, and especially IRF7, are important for an effective control of inflammatory responses during HSE...
August 9, 2018: Journal of Neurovirology
https://www.readbyqxmd.com/read/30083931/glycans-with-antiviral-activity-from-marine-organisms
#3
I D Grice, G L Mariottini
There remains today a critical need for new antiviral agents, particularly in view of the alarming increase in drug resistance and associated issues. The marine environment has been a prolific contributor towards the identification of novel therapeutic agents in the recent few decades. Added to this, glycans (or carbohydrate- or sugar-based compounds) have in very recent decades made outstanding contributions to the development of novel therapeutics. This review brings together these significant facets of modern drug discovery by presenting the reported literature on glycans derived from marine organisms that possess antiviral activity...
2018: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/30067953/high-incidence-of-early-human-herpes-virus-6-infection-in-children-undergoing-haploidentical-manipulated-stem-cell-transplantation-for-haematological-malignancies
#4
Katia Perruccio, Luisa Sisinni, Antonio Perez-Martinez, Jaime Valentin, Ilaria Capolsini, Maria Speranza Massei, Maurizio Caniglia, Simone Cesaro
BACKGROUND: Human herpesvirus (HHV-6) infection is increasingly recognized among allogeneic hematopoietic stem cell transplantation (HSCT) recipients, 30% being the risk of reactivation in the haploidentical setting. It has been associated with encephalitis, acute graft-versus-host disease (GvHD) and graft failure. Here we report two cohorts of pediatric haploidentical manipulated HSCT in which, despite many differences, HHV-6 reactivation and disease occurred with very high incidence compared to data reported in literature, and represented the main early post-transplant infectious complication compared to other viral, bacterial or fungal infections...
July 29, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/30065927/hsv1-2-genital-infection-in-mice-cause-reversible-delayed-gastrointestinal-transit-a-model-for-enteric-myopathy
#5
Arun Chaudhury, Vijaya Sena Reddy Dendi, Mousumi Chaudhury, Astha Jain, Madhukar Reddy Kasarla, Kiran Panuganti, Gaurav Jain, Abhijit Ramanujam, Bhavin Rena, Sudheer Reddy Koyagura, Sumit Fogla, Sunil Kumar, Nawal Singh Shekhawat, Srinivas Maddur
In an interesting investigation by Khoury-Hanold et al. (1), genital infection of mice with herpes simplex virus 1 (HSV1) were reported to cause multiple pelvic organ involvement and obstruction. A small subset of mice succumbed after the first week of HSV1 infection. The authors inferred that the mice died due to toxic megacolon. In a severe form of mechanical and/or functional obstruction involving gross dilation of the colon and profound toxemia, the presentation is called "toxic megacolon." The representative observations by Khoury-Hanold likely do not resemble toxic megacolon...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/30057617/a-case-of-herpes-simplex-virus-1-encephalitis-from-a-medicolegal-point-of-view
#6
Alessandro Feola, Anna Mancuso, Mauro Arcangeli
We present a case of herpes simplex virus-1 encephalitis (HSVE) and discuss the difficulty of early diagnosis and the possibility of a wrong or delayed diagnosis and treatment of this encephalitis. We show the importance of considering HSVE to pursue every case of suspicious medical liability.
2018: Case Reports in Medicine
https://www.readbyqxmd.com/read/30049614/frequency-symptoms-risk-factors-and-outcomes-of-autoimmune-encephalitis-after-herpes-simplex-encephalitis-a-prospective-observational-study-and-retrospective-analysis
#7
Thaís Armangue, Marianna Spatola, Alexandru Vlagea, Simone Mattozzi, Marc Cárceles-Cordon, Eloy Martinez-Heras, Sara Llufriu, Jordi Muchart, María Elena Erro, Laura Abraira, German Moris, Luis Monros-Giménez, Íñigo Corral-Corral, Carmen Montejo, Manuel Toledo, Luis Bataller, Gabriela Secondi, Helena Ariño, Eugenia Martínez-Hernández, Manel Juan, Maria Angeles Marcos, Laia Alsina, Albert Saiz, Myrna R Rosenfeld, Francesc Graus, Josep Dalmau
BACKGROUND: Herpes simplex encephalitis can trigger autoimmune encephalitis that leads to neurological worsening. We aimed to assess the frequency, symptoms, risk factors, and outcomes of this complication. METHODS: We did a prospective observational study and retrospective analysis. In the prospective observational part of this study, we included patients with herpes simplex encephalitis diagnosed by neurologists, paediatricians, or infectious disease specialists in 19 secondary and tertiary Spanish centres (Cohort A)...
July 23, 2018: Lancet Neurology
https://www.readbyqxmd.com/read/30042219/-montezuma-s-revenge-neurological-disorders-in-the-returning-traveller
#8
REVIEW
Tehmina Bharucha, Hadi Manji
'The world is a book and those who do not travel read only one page'.Augustine of Hippo - Latin philosopher and theologian.Neurological presentations are seen in about 1.5%-2.0% of returning travellers seeking medical attention, and may pose a particular challenge to diagnose and treat. These may be severe and life threatening, such as meningoencephalitic illnesses or inflammatory radiculoneuropathy (Guillain-Barré-like) syndromes requiring intensive care support. It is essential not to miss the potentially treatable and common diseases such as malaria, which can be lethal if undiagnosed...
July 24, 2018: Practical Neurology
https://www.readbyqxmd.com/read/30026111/human-herpes-virus-6-associated-encephalitis-myelitis-mimicking-calcineurin-inhibitor-induced-pain-syndrome-in-allogeneic-stem-cell-transplantation-recipients
#9
Goichi Yoshimoto, Yasuo Mori, Koji Kato, Takahiro Shima, Kohta Miyawaki, Yoshikane Kikushige, Kenjiro Kamezaki, Akihiko Numata, Takahiro Maeda, Katsuto Takenaka, Hiromi Iwasaki, Takanori Teshima, Koichi Akashi, Toshihiro Miyamoto
Human herpes virus-6 (HHV6)-associated myelitis and calcineurin inhibitor-induced pain syndrome (CIPS) are serious complications of allogeneic hematopoietic stem cell transplantation (allo-HSCT). Because these two complications cause similar sensory nerve-related symptoms, such as paresthesia, pruritus, and severe pain occurring around the engraftment, it can be difficult to differentially diagnose the two conditions. We retrospectively analyzed 435 recipients to distinguish clinical symptoms of these two complications...
July 16, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/30002360/a-case-of-herpes-simplex-virus-type-1-hsv-1-encephalitis-as-a-possible-complication-of-cosmetic-nasal-dermal-filler-injection
#10
Ching Soong Khoo, Hui Jan Tan, Syazarina Sharis Osman
BACKGROUND Dermal fillers are increasingly used for medical and aesthetic purposes in clinical practice. Common complications following filler injections include bruising, itching, infections, allergic reactions, and tissue necrosis. This case is the first report of Herpes simplex virus type 1 (HSV-1) encephalitis as a possible complication of dermal filler injection. CASE REPORT A 27-year-old woman with no past medical history presented with altered mental state, headaches, and seizures. She had a nasal dermal filler injection for aesthetic purpose five weeks before her acute presentation...
July 13, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29987578/insular-cortex-lesion-and-autonomic-instability-in-a-herpes-simplex-virus-encephalitis-patient
#11
Mai Kikumoto, Michiaki Nagai, Tomohiko Ohshita, Megumi Toko, Masaya Kato, Keigo Dote, Hiroshi Yamashita
The cardiovascular system is regulated by a central autonomic network (CAN) consisting of the insular cortex, anterior cingulate gyrus, and amygdala. Because the insular cortex often tends to be damaged in patients with herpes simplex virus (HSV) encephalitis, the autonomic instability observed in these patients was suggested to be moderated by an insular cortex lesion. Here, we report the case of a 51-year-old Japanese male who was hospitalized following a collapse 5 days earlier; he was diagnosed as herpes encephalitis...
July 9, 2018: Journal of Neurovirology
https://www.readbyqxmd.com/read/29986399/anti-infectivity-against-herpes-simplex-virus-and-selected-microbes-and-anti-inflammatory-activities-of-compounds-isolated-from-eucalyptus-globulus-labill
#12
Viliam Brezáni, Veronika Leláková, Sherif T S Hassan, Kateřina Berchová-Bímová, Pavel Nový, Pavel Klouček, Petr Maršík, Stefano Dall'Acqua, Jan Hošek, Karel Šmejkal
Herpes simplex virus (HSV) causes numerous mild-to-serious human diseases, including mucocutaneous herpes infections and life-threatening herpes encephalitis. Moreover, herpes viral lesions can be complicated by inflammation and secondary bacterial infections. The development of resistance to antiviral drugs along with the undesirable side effects of these drugs are relevant argue for the development of new anti-HSV drugs with diverse mechanisms of action. Eucalyptus extracts have been used for decades to combat various infectious diseases...
July 6, 2018: Viruses
https://www.readbyqxmd.com/read/29977968/real-time-utilization-of-metagenomic-sequencing-in-the-diagnosis-and-treatment-monitoring-of-an-invasive-adenovirus-b55-infection-and-subsequent-herpes-simplex-virus-encephalitis-in-an-immunocompetent-young-adult
#13
Xueling Fang, Mi Xu, Qiang Fang, Haiqin Tan, Jiale Zhou, Ziqin Li, Fan Li, Shangxin Yang
Background: Metagenomic sequencing has shown tremendous promise in solving difficult infectious diseases cases. In this study, we utilized this technology to help guide the care of a critically ill patient with severe pneumonia, fever of unknown origin, and subsequent encephalitis in the intensive care unit (ICU). Methods: Shotgun metagenomic sequencing was performed on the patient's blood, bronchoalveolar lavage (BAL), and cerebral spinal fluid by using an Illumina MiniSeq sequencer...
June 2018: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29970006/a-case-report-of-myocarditis-combined-with-hepatitis-caused-by-herpes-simplex-virus
#14
Tetsuya Yamamoto, Tsuneaki Kenzaka, Masanori Matsumoto, Ryo Nishio, Satoru Kawasaki, Hozuka Akita
BACKGROUND: Viral myocarditis presents with various symptoms, including fatal arrhythmia and cardiogenic shock, and may develop into chronic myocarditis and dilated cardiomyopathy in some patients. We report a case of viral myocarditis and hepatitis caused by herpes simplex virus. CASE PRESENTATION: A 20-year-old woman was admitted to our hospital with fever, fatigue, and anorexia. The initial investigation showed elevated liver enzyme levels and elevated creatine phosphokinase, and computed tomography showed diffuse swelling and internal heterogeneous image in the liver...
July 3, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29921616/study-of-complications-of-varicella-zoster-virus-infection-in-hospitalized-children-at-a-reference-hospital-for-infectious-disease-treatment
#15
Lilian Martins Oliveira Diniz, Marcelle Marie Martins Maia, Yara Vieira de Oliveira, Marina Santos Falci Mourão, Amanda Vieira Couto, Vânia Carneiro Mota, Carolina Mazieiro Versiani, Priscila Olívia da Costa Silveira, Roberta Maia Castro Romanelli
OBJECTIVES: Varicella is a disease with potentially severe complications. We aimed to investigate characteristics of hospitalized children with varicella in Brazil in the prevaccine period and to identify predictors for requiring intensive care treatment. METHODS: A prospective cohort study was conducted from May 2011 to April 2014. Patients up to 13 years of age with varicella diagnosis were included. Information was collected through interview and review of medical records...
July 2018: Hospital Pediatrics
https://www.readbyqxmd.com/read/29902492/analytical-validation-of-viral-cns-flow-chip-kit-for-detection-of-acute-meningitis-and-encephalitis
#16
Mercedes Pérez-Ruiz, Irene Pedrosa-Corral, Sara Sanbonmatsu-Gámez, Cristina Gómez-Camarasa, José María Navarro-Marí
A new molecular assay (Viral CNS Flow Chip kit, Master Diagnóstica, Spain) has been developed for the detection of eight viruses causing acute meningitis and encephalitis, i.e. herpes simplex viruses 1-2, varicella zoster virus, human enterovirus, human parechovirus, Toscana virus, human cytomegalovirus and Epstein Barr virus. The new assay is a multiplex one-step RT-PCR followed by automatic flow-through hybridization, colorimetric detection and image analysis. The limit of detection was 50 copies/reaction, and 10 copies/reaction for human enterovirus and the other seven viruses, respectively...
September 2018: Journal of Virological Methods
https://www.readbyqxmd.com/read/29900087/fulminant-herpes-simplex-virus-type-i-encephalitis-despite-maximal-medical-therapy
#17
Nakul Katyal, Ather M Taqui, Deborah Tepper, Jonathan M Beary, Christopher R Newey
Herpes simplex-1 virus encephalitis (HSE) is the most commonly recognized cause of sporadic encephalitis in the United States. Historically HSE has been considered extremely detrimental given the associated relentless neurological deterioration secondary to cerebral edema and status epilepticus. With recent advances in antiviral therapeutics in past decades, the majority of complications can be managed effectively although the associated morbidity and mortality still remains high. The key modifiable factor determining recovery is the rapid initiation of antiviral therapy...
April 12, 2018: Curēus
https://www.readbyqxmd.com/read/29896664/neurological-disorders-associated-with-human-alphaherpesviruses
#18
Jun-Ichi Kawada
Herpes simplex virus (HSV) encephalitis is the most common cause of sporadic fatal encephalitis worldwide, and central nervous system (CNS) involvement is observed in approximately one-third of neonatal HSV infections . In recent years, single-gene inborn errors of innate immunity have been shown to be associated with susceptibility to HSV encephalitis . Temporal lobe abnormalities revealed by magnetic resonance imaging-the most sensitive imaging method for HSV encephalitis-are considered strong evidence for the disease...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29866997/p53-and-the-viral-connection-back-into-the-future-%C3%A2
#19
REVIEW
Ronit Aloni-Grinstein, Meital Charni-Natan, Hilla Solomon, Varda Rotter
The discovery of the tumor suppressor p53, through its interactions with proteins of tumor-promoting viruses, paved the way to the understanding of p53 roles in tumor virology. Over the years, accumulating data suggest that WTp53 is involved in the viral life cycle of non-tumor-promoting viruses as well. These include the influenza virus, smallpox and vaccinia viruses, the Zika virus, West Nile virus, Japanese encephalitis virus, Human Immunodeficiency Virus Type 1, Human herpes simplex virus-1, and more. Viruses have learned to manipulate WTp53 through different strategies to improve their replication and spreading in a stage-specific, bidirectional way...
June 4, 2018: Cancers
https://www.readbyqxmd.com/read/29848849/acyclovir-sensitivity-and-neurovirulence-of-herpes-simplex-virus-type-1-with-amino-acid-substitutions-in-the-viral-thymidine-kinase-gene-which-were-detected-in-the-patients-with-intractable-herpes-simplex-encephalitis-previously-reported
#20
Takuya Inagaki, Masaaki Satoh, Hikaru Fujii, Souichi Yamada, Miho Shibamura, Tomoki Yoshikawa, Shizuko Harada, Haruko Takeyama, Masayuki Saijo
Several cases of herpes simplex encephalitis (HSE) caused by acyclovir (ACV)-resistant herpes simplex virus type 1 (HSV-1) have been reported. Amino acid substitutions of R41H, Q125H, and A156V in the viral thymidine kinase (vTK) gene were reported to confer ACV-resistance. Recombinant HSV-1 clones with each amino acid substitution in the vTK were generated using the bacterial artificial chromosome (BAC) system. A recombinant HSV-1 with the substitution of Q125H showed ACV-resistance, while those of R41H or A156V were sensitive to ACV...
May 31, 2018: Japanese Journal of Infectious Diseases
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