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Herpes Simplex Virus

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https://www.readbyqxmd.com/read/28102519/nmdar-encephalitis-following-herpes-simplex-virus-encephalitis
#1
REVIEW
Jonathan Galli, Stacey L Clardy, Amanda L Piquet
PURPOSE OF REVIEW: Herpes simplex virus encephalitis (HSVE) is often associated with significant morbidity and mortality, and despite appropriate treatment with antivirals, worsening of neurological symptoms or relapse occurs in a subset of patients. Recent data suggests that many relapses are likely caused by a secondary immune response, with the N-methyl-D-aspartate receptor (NMDAR) antibody being the most commonly associated autoantibody. We provide a review of the relevant literature, examining the relationship between HSVE and development of autoimmunity...
January 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/28102002/pseudoherpetic-transient-acantholytic-dermatosis-grover-disease-case-series-and-review-of-the-literature
#2
Kiran Motaparthi
Three cases of pseudoherpetic transient acantholytic dermatosis (Grover disease) are presented, followed by a brief review of prior reports. All three patients were above the age of 60 and presented with a pruritic eruption composed of papules with or without vesicles distributed on the trunk. For all three patients, the clinical differential diagnosis included drug eruption but did not include Grover disease; in one patient, the clinical impression included herpesvirus infection. Similar histologic and immunohistochemical findings were demonstrated in all three cases...
January 18, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28101751/fatal-disseminated-neonatal-herpes-simplex-virus-type-1-infection-in-neonates-in-a-forensic-setting
#3
Jia Hao Wu, Sarah Parsons
No abstract text is available yet for this article.
January 19, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28100832/reporter-gene-imaging-of-targeted-t-cell-immunotherapy-in-recurrent-glioma
#4
Khun Visith Keu, Timothy H Witney, Shahriar Yaghoubi, Jarrett Rosenberg, Anita Kurien, Rachel Magnusson, John Williams, Frezghi Habte, Jamie R Wagner, Stephen Forman, Christine Brown, Martin Allen-Auerbach, Johannes Czernin, Winson Tang, Michael C Jensen, Behnam Badie, Sanjiv S Gambhir
High-grade gliomas are aggressive cancers that often become rapidly fatal. Immunotherapy using CD8(+) cytotoxic T lymphocytes (CTLs), engineered to express both herpes simplex virus type 1 thymidine kinase (HSV1-TK) and interleukin-13 (IL-13) zetakine chimeric antigen receptor (CAR), is a treatment strategy with considerable potential. To optimize this and related immunotherapies, it would be helpful to monitor CTL viability and trafficking to glioma cells. We show that noninvasive positron emission tomography (PET) imaging with 9-[4-[(18)F]fluoro-3-(hydroxymethyl)butyl]guanine ([(18)F]FHBG) can track HSV1-tk reporter gene expression present in CAR-engineered CTLs...
January 18, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28100624/azacytidine-treatment-inhibits-the-progression-of-herpes-stromal-keratitis-by-enhancing-regulatory-t-cell-function
#5
Siva Karthik Varanasi, Pradeep B J Reddy, Siddheshvar Bhela, Ujjaldeep Jaggi, Fernanda Gimenez, Barry T Rouse
: Ocular infection with Herpes Simplex Virus type 1 (HSV-1) sets off an inflammatory reaction in the cornea which leads to both virus clearance as well as chronic lesions that are orchestrated by CD4 T cells. Approaches that enhance the function of regulatory T cells (Treg) and dampen effector T cells can be effective to limit Stromal Keratitis (SK) lesion severity. In this report, we have explored the novel approach of inhibiting DNA methyltransferase activity using 5-Azacytidine (cytosine analog) to limit HSV-1 induced ocular lesions...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28100608/herpes-simplex-virus-type-1-ul24-abrogates-dna-sensing-signal-pathway-by-inhibiting-nf-%C3%AE%C2%BAb-activation
#6
Haiyan Xu, Chenhe Su, Angela Pearson, Christopher H Mody, Chunfu Zheng
: Cyclic GMP-AMP synthase (cGAS) is a newly identified DNA sensor that recognizes foreign DNA, including the genome of herpes simplex virus 1 (HSV-1). Upon binding of viral DNA, cGAS produces cyclic GMP-AMP, which interacts with and activates stimulator of interferon genes (STING) to trigger the transcription of anti-viral genes such as type I interferons and production of inflammatory cytokines. HSV-1 UL24 is widely conserved among the herpesviruses family and is essential for efficient viral replication...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28095879/treatment-seeking-behaviour-and-barriers-to-service-access-for-sexually-transmitted-diseases-among-men-who-have-sex-with-men-in-china-a-multicentre-cross-sectional-survey
#7
Jun-Jie Xu, Yan-Qiu Yu, Qing-Hai Hu, Hong-Jing Yan, Zhe Wang, Lin Lu, Ming-Hua Zhuang, Xi Chen, Ji-Hua Fu, Wei-Ming Tang, Wen-Qing Geng, Yong-Jun Jiang, Hong Shang
BACKGROUND: Delayed or inappropriate treatment for sexually transmitted diseases (STDs) increases the risk of HIV acquisition and may cause other harmful outcomes. However, studies on STD treatment-seeking behaviour and correlated factors in men who have sex with men (MSM) are scarce. This information is crucial for the promotion of STD treatment-seeking behaviour and reduction of HIV transmission among Chinese MSM. METHODS: During 2012-2013, a multicentre cross-sectional study was conducted in 7 Chinese cities...
January 18, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28095500/senp7-potentiates-cgas-activation-by-relieving-sumo-mediated-inhibition-of-cytosolic-dna-sensing
#8
Ye Cui, Huansha Yu, Xin Zheng, Rui Peng, Qiang Wang, Yi Zhou, Rui Wang, Jiehua Wang, Bo Qu, Nan Shen, Qiang Guo, Xing Liu, Chen Wang
Cyclic GMP-AMP (cGAMP) synthase (cGAS, a.k.a. MB21D1), a cytosolic DNA sensor, catalyzes formation of the second messenger 2'3'-cGAMP that activates the stimulator of interferon genes (STING) signaling. How the cGAS activity is modulated remains largely unknown. Here, we demonstrate that sentrin/SUMO-specific protease 7 (SENP7) interacted with and potentiated cGAS activation. The small ubiquitin-like modifier (SUMO) was conjugated onto the lysine residues 335, 372 and 382 of cGAS, which suppressed its DNA-binding, oligomerization and nucleotidyl-transferase activities...
January 17, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28095497/replication-coupled-recruitment-of-viral-and-cellular-factors-to-herpes-simplex-virus-type-1-replication-forks-for-the-maintenance-and-expression-of-viral-genomes
#9
Jill A Dembowski, Sarah E Dremel, Neal A DeLuca
Herpes simplex virus type 1 (HSV-1) infects over half the human population. Much of the infectious cycle occurs in the nucleus of cells where the virus has evolved mechanisms to manipulate host processes for the production of virus. The genome of HSV-1 is coordinately expressed, maintained, and replicated such that progeny virions are produced within 4-6 hours post infection. In this study, we selectively purify HSV-1 replication forks and associated proteins from virus-infected cells and identify select viral and cellular replication, repair, and transcription factors that associate with viral replication forks...
January 17, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28095323/pattern-recognitions-receptors-in-immunodeficiency-disorders
#10
Esameil Mortaz, Ian M Adcock, Payam Tabarsi, Ilad Alavi Darazam, Masoud Movassaghi, Johan Garssen, Hamidreza Jamaati, Aliakbar Velayati
Pattern recognition receptors (PRRs) recognize common microbial or host-derived macromolecules and have important roles in early activation and response of the immune system. Initiation of the innate immune response starts with the recognition of microbial structures called pathogen associated molecular patterns (PAMPs). Recognition of PAMPs is performed by germline-encoded receptors expressed mainly on immune cells termed pattern recognition receptors (PRRs). Several classes of pattern recognition receptors (PRRs) are involved in the pathogenesis of diseases, including Toll-like receptors (TLRs), C-type lectin receptors (CLRs), and Nod-like receptors (NLRs)...
January 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28094044/diagnosis-and-treatment-of-acute-retinal-necrosis-a-report-by-the-american-academy-of-ophthalmology
#11
Scott D Schoenberger, Stephen J Kim, Jennifer E Thorne, Prithvi Mruthyunjaya, Steven Yeh, Sophie J Bakri, Justis P Ehlers
PURPOSE: To evaluate the available evidence in peer-reviewed publications about the diagnosis and treatment of acute retinal necrosis (ARN). METHODS: Literature searches of the PubMed and Cochrane Library databases were last conducted on July 27, 2016. The searches identified 216 unique citations, and 49 articles of possible clinical relevance were reviewed in full text. Of these 49 articles, 27 were deemed sufficiently relevant or of interest, and they were rated according to strength of evidence...
January 13, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28093274/a-direct-quantitative-pcr-based-measurement-of-herpes-simplex-virus-susceptibility-to-antiviral-drugs-and-neutralizing-antibodies
#12
Dezső P Virók, Ildikó Eszik, Tímea Mosolygó, Kamil Önder, Valéria Endrész, Katalin Burián
Herpes simplex viruses (HSV) are common human pathogens that can cause painful but benign manifestations and recurrent complaints, but can also cause significant morbidity and mortality on infection of the eye or brain and with disseminated infection of an immunosuppressed patient or a neonate. HSV growth inhibition measurement by plaque or yield reduction is a key task in the development of novel antiviral compounds but the manual methods are very labour intensive. The sensitive and specific PCR technology could be an effective method for quantitation of HSV DNA related to virus replication; however the currently described PCR approaches have a major limitation, namely the requirement of purification of DNA from the infected cells...
January 13, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28090751/a-safety-checkpoint-to-eliminate-cancer-risk-of-the-immune-evasive-cells-derived-from-human-embryonic-stem-cells
#13
Jingjin He, Zhili Rong, Xuemei Fu, Yang Xu
Human embryonic stem cells (hESCs) hold great promise in the regenerative therapy of many currently untreatable human diseases. One of the key bottlenecks is the immune rejection of hESC-derived allografts by the recipient. To overcome this challenge, we have established new approaches to induce immune protection of hESC-derived allografts through the co-expression of immune suppressive molecules CTLA4-Ig and PD-L1. However, this in turn raises a safety concern of cancer risk because these hESC-derived cells can evade immune surveillance...
January 16, 2017: Stem Cells
https://www.readbyqxmd.com/read/28090058/herpes-simplex-encephalitis-complicated-by-cerebral-hemorrhage-during-acyclovir-therapy
#14
Yukinori Harada, Yuuta Hara
Herpes simplex encephalitis (HSE) can be complicated by adverse events in the acute phase. We herein present the case of a 71-year-old woman with HSE complicated by cerebral hemorrhage. She presented with acute deterioration of consciousness and fever and was diagnosed with HSE based on the detection of herpes simplex virus-1 in the cerebrospinal fluid by a polymerase chain reaction. The cerebral hemorrhage developed during acyclovir therapy; however, its diagnosis was delayed for 2 days. After the conservative treatment of the cerebral hemorrhage, the patient made a near-complete recovery...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28088779/comprehensive-proteome-analysis-of-lysosomes-reveals-the-diverse-function-of-macrophages-in-immune-responses
#15
Yanpan Gao, Yanyu Chen, Shaohua Zhan, Wenhao Zhang, Feng Xiong, Wei Ge
Phagocytosis and autophagy in macrophages have been shown to be essential to both innate and adaptive immunity. Lysosomes are the main catabolic subcellular organelles responsible for degradation and recycling of both extracellular and intracellular material, which are the final steps in phagocytosis and autophagy. However, the molecular mechanisms underlying lysosomal functions after infection remain obscure. In this study, we conducted a quantitative proteomics analysis of the changes in constitution and glycosylation of proteins in lysosomes derived from murine RAW 264...
January 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28081512/association-between-herpes-simplex-virus-types-1-and-2-with-cardiac-myxoma
#16
Maryam Sotoudeh Anvari, Moud Sabagh, Hamidreza Goodarzynejad, Shayan Ziaei, Mohammad Ali Boroumand, Leyla Pourgholi, Yaser Jenab, Kyomars Abbasi
Most cases of atrial myxoma are sporadic, and the exact etiology is unknown. We examined if herpes simplex virus (HSV)-1 and HSV-2 antigens and/or DNA could be detected in a cohort of Iranian patients with cardiac myxomas. From July 2004 to June 2014, among a total of 36,703 patients undergoing open heart surgeries, consecutive patients with cardiac myxoma who were treated by surgical excision at our center included in this study. Of 73 patients studied, 56% were female with a mean age of 54 years (ranging from 23 to 77 years)...
January 3, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28081046/evaluation-of-herpes-simplex-virus-type-2-serological-tests-for-use-with-dried-blood-spots-in-kenya
#17
Marcia M Hobbs, Sophie W Mwanyumba, Winnie K Luseno, Shane Hartman, Carolyn T Halpern, Denise D Hallfors, Hyunsan Cho
We evaluated 2 assays to detect antibodies to herpes simplex virus type 2 in dried blood spots prepared from blood specimens submitted to a reference laboratory in Kenya. Dried blood spots did not perform well with the Kalon herpes simplex virus type 2 assay. Focus HerpeSelect 2 was 98.8% sensitive and 98.9% specific with dried blood spots.
February 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28079748/clinical-characteristics-of-herpes-simplex-virus-urethritis-compared-with-chlamydial-urethritis-among-men
#18
Jason J Ong, Anna N Morton, Helen R Henzell, Karen Berzins, Julian Druce, Christopher K Fairley, Catriona S Bradshaw, Tim Rh Read, Jane S Hocking, Marcus Y Chen
BACKGROUND: The aim of this study was to ascertain the clinical characteristics associated with herpes simplex virus (HSV) urethritis in men and to compare those with chlamydial urethritis. METHODS: We compared clinical and laboratory data from men diagnosed with polymerase chain reaction confirmed HSV urethritis with those of men with chlamydial urethritis presenting to Melbourne Sexual Health Centre between 2000 and 2015. RESULTS: Eighty HSV urethritis cases were identified: 55 (68%, 95% confidence interval, 58-78) were by HSV-1 and 25 (32%, 95% confidence interval, 22-42) by HSV-2...
February 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28077729/vaccination-to-reduce-reactivation-of-herpes-simplex-virus-2
#19
EDITORIAL
Jeffrey I Cohen
No abstract text is available yet for this article.
January 11, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28077645/herpes-simplex-virus-1-abrogates-cgas-sting-mediated-cytosolic-dna-sensing-pathway-via-its-virion-host-shutoff-protein-ul41
#20
Chenhe Su, Chunfu Zheng
: Cyclic GMP-AMP synthase (cGAS) is a key DNA sensor capable of detecting microbial DNA and activating the adaptor protein stimulator of interferon genes (STING), leading to interferon (IFN) production and host antiviral responses. Cells exhibited reduced type I IFN production in response to cytosolic DNA in the absence of cGAS. Although cGAS/STING-mediated DNA-sensing signal is crucial for host defense against many viruses, especial for DNA viruses, few viral components have been identified to specifically target this signaling pathway...
January 11, 2017: Journal of Virology
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