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Herpes Simplex Virus

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https://www.readbyqxmd.com/read/28453848/association-of-the-emergence-of-acyclovir-resistant-herpes-simplex-virus-type-1-with-prognosis-in-hematopoietic-stem-cell-transplantation-patients
#1
Satsuki Kakiuchi, Masanori Tsuji, Hidekazu Nishimura, Tomoki Yoshikawa, Lixin Wang, Mutsuyo Takayama-Ito, Hitomi Kinoshita, Chang-Kweng Lim, Hikaru Fujii, Souichi Yamada, Shizuko Harada, Akira Oka, Masashi Mizuguchi, Shuichi Taniguchi, Masayuki Saijo
Background.: Antiviral-resistant herpes simplex virus type 1 (HSV-1) has been recognized as an emerging clinical problem among patients undergoing hematopoietic stem cell transplantation (HSCT). Methods.: A prospective observational study was conducted at a hematological center over a 2-year period. Oropharyngeal swab samples were serially collected each week from 1 week before and up to 100 days after HSCT and were tested for virus isolation. The HSV-1 isolates were tested for sensitivity to acyclovir (ACV)...
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28453835/herpes-simplex-virus-type-2-acquisition-among-hiv-1-infected-adults-treated-with-tenofovir-disoproxyl-fumarate-as-part-of-combination-antiretroviral-therapy-results-from-the-actg-a5175-pearls-study
#2
Connie Celum, Ting Hong, Anne Cent, Deborah Donnell, Rhoda Morrow, Jared M Baeten, Cynthia Firnhaber, Beatriz Grinsztejn, Mina C Hosseinipour, Umesh Lalloo, Mulinda Nyirenda, Cynthia Riviere, Jorge Sanchez, Breno Santos, Khuanchai Supparatpinyo, James Hakim, N Kumarasamy, Thomas B Campbell
Objective.: Tenofovir disoproxyl fumarate (TDF) disoproxyl fumarate (TDF) has in vitro activity against herpes simplex virus type 2 (HSV-2) and reduced HSV-2 acquisition as preexposure prophylaxis. Whether TDF-containing antiretroviral therapy (ART) reduces HSV-2 acquisition is unknown. Design.: Secondary analysis of AIDS Clinical Trials Group A5175, a randomized, open-label study of 3 ART regimens among 1571 participants. Methods.: HSV-2 serostatus was assessed at baseline, at study exit, and before a change in ART regimen...
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28453833/vaccination-to-reduce-reactivation-of-herpes-simplex-virus-type-2
#3
Jeffrey I Cohen
No abstract text is available yet for this article.
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28446672/cellular-cholesterol-facilitates-the-post-entry-replication-cycle-of-herpes-simplex-virus-1
#4
George A Wudiri, Anthony V Nicola
Cholesterol is an essential component of cell membranes and is required for HSV-1 entry (1-3). Treatment of HSV-1-infected Vero cells with methyl beta-cyclodextrin from 2 - 9 hours post-entry reduced plaque numbers. Transport of incoming viral capsids to the nuclear periphery was unaffected by cholesterol reduction suggesting that cell cholesterol is important for the HSV-1 replicative cycle at a stage(s) beyond entry after the arrival of capsids at the nucleus. The synthesis and release of infectious HSV-1 and cell-to-cell spread of infection were all impaired in cholesterol-reduced cells...
April 26, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28443092/disarming-cellular-alarm-systems-manipulation-of-stress-induced-nkg2d-ligands-by-human-herpesviruses
#5
REVIEW
Dominik Schmiedel, Ofer Mandelboim
The coevolution of viruses and their hosts led to the repeated emergence of cellular alert signals and viral strategies to counteract them. The herpesvirus family of viruses displays the most sophisticated repertoire of immune escape mechanisms enabling infected cells to evade immune recognition and thereby maintain infection. The herpesvirus family consists of nine viruses that are capable of infecting humans: herpes simplex virus 1 and 2 (HSV-1, HSV-2), varicella zoster virus (VZV), Epstein-Barr virus (EBV), human cytomegalovirus (HCMV), roseoloviruses (HHV-6A, HHV-6B, and HHV-7), and Kaposi's-sarcoma-associated herpesvirus (KSHV)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28440579/prevalence-of-herpes-simplex-virus-types-1-and-2-at-maternal-and-fetal-sides-of-the-placenta-in-asymptomatic-pregnant-women
#6
Fabiana Finger-Jardim, Emiliana C Avila, Vanusa P da Hora, Carla V Gonçalves, Ana Maria B de Martinez, Marcelo A Soares
PROBLEM: Herpes simplex virus 1 (HSV-1) commonly causes orolabial infection, but can also infect the genital mucosa. In contrast, HSV-2 is usually genital. Genital herpes can transmit the virus vertically to the fetus during pregnancy. We sought to estimate the prevalence of HSV-1/2 on the maternal and fetal sides of the placenta. METHOD OF STUDY: Placental tissues were collected from pregnant women seen at the Rio Grande University Hospital. HSV-1 and HSV-2 were detected by nested PCR...
April 25, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28439892/cerebrospinal-fluid-cyto-chemokine-profile-during-acute-herpes-simplex-virus-induced-anti-n-methyl-d-aspartate-receptor-encephalitis-and-in-chronic-neurological-sequelae
#7
Kavitha Kothur, Deepak Gill, Melanie Wong, Shekeeb S Mohammad, Sushil Bandodkar, Susan Arbunckle, Louise Wienholt, Russell C Dale
AIM: To examine the cytokine/chemokine profile of cerebrospinal fluid (CSF) during acute herpes simplex virus-induced N-methyl-d-aspartate receptor (NMDAR) autoimmunity and in chronic/relapsing post-herpes simplex virus encephalitis (HSE) neurological syndromes. METHOD: We measured longitudinal serial CSF cyto-/chemokines (n=34) and a glial marker (calcium-binding astroglial protein, S100B) in one patient during acute HSE and subsequent anti-NMDAR encephalitis, and compared the results with those from two patients with anti-NMDAR encephalitis without preceding HSE...
April 25, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28439890/herpes-simplex-virus-induced-anti-n-methyl-d-aspartate-receptor-encephalitis-a-systematic-literature-review-with-analysis-of-43-cases
#8
REVIEW
Margherita Nosadini, Shekeeb S Mohammad, Francesco Corazza, Ezia Maria Ruga, Kavitha Kothur, Giorgio Perilongo, Anna Chiara Frigo, Irene Toldo, Russell C Dale, Stefano Sartori
AIM: To conduct a systematic literature review on patients with biphasic disease with herpes simplex virus (HSV) encephalitis followed by anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis. METHOD: We conducted a case report and systematic literature review (up to 10 December 2016), focused on differences between herpes simplex encephalitis (HSE) and anti-NMDAR encephalitis phases, age-related characteristics of HSV-induced anti-NMDAR encephalitis, and therapy...
April 25, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28439026/the-sp100-component-of-nd10-enhances-accumulation-of-pml-and-suppresses-replication-and-the-assembly-of-hsv-replication-compartments
#9
Pei Xu, Bernard Roizman
Nuclear domain 10 (ND10) bodies are small (0.1-1 μM) nuclear structures containing both constant [e.g., promyelocytic leukemia protein (PML), SP100, death domain-associated protein (Daxx)] and variable proteins, depending on the function of the cells or the stress to which they are exposed. In herpes simplex virus (HSV)-infected cells, ND10 bodies assemble at the sites of DNA entering the nucleus after infection. In sequence, the ND10 bodies become viral replication compartments, and ICP0, a viral E3 ligase, degrades both PML and SP100...
April 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28438128/viral-aetiologies-of-acute-encephalitis-in-a-hospital-based-south-asian-population
#10
Janarthani Lohitharajah, Neelika Malavige, Carukshi Arambepola, Jithangi Wanigasinghe, Ranjanie Gamage, Padma Gunaratne, Pyara Ratnayake, Thashi Chang
BACKGROUND: The aetiological spectrum of acute encephalitis shows inter- and intra-geographical variations. We aimed to identify the viruses that cause infectious encephalitis in Sri Lanka, which represents a South Asian population. METHODS: A cross-sectional study was conducted among 99 patients with encephalitis/meningoencephalitis admitted to two tertiary-care hospitals in Colombo. Cerebrospinal fluid and serum were tested for conventional and emerging encephalitogenic viruses...
April 24, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28436958/local-clearance-of-senescent-cells-attenuates-the-development-of-post-traumatic-osteoarthritis-and-creates-a-pro-regenerative-environment
#11
Ok Hee Jeon, Chaekyu Kim, Remi-Martin Laberge, Marco Demaria, Sona Rathod, Alain P Vasserot, Jae Wook Chung, Do Hun Kim, Yan Poon, Nathaniel David, Darren J Baker, Jan M van Deursen, Judith Campisi, Jennifer H Elisseeff
Senescent cells (SnCs) accumulate in many vertebrate tissues with age and contribute to age-related pathologies, presumably through their secretion of factors contributing to the senescence-associated secretory phenotype (SASP). Removal of SnCs delays several pathologies and increases healthy lifespan. Aging and trauma are risk factors for the development of osteoarthritis (OA), a chronic disease characterized by degeneration of articular cartilage leading to pain and physical disability. Senescent chondrocytes are found in cartilage tissue isolated from patients undergoing joint replacement surgery, yet their role in disease pathogenesis is unknown...
April 24, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28435887/correction-for-mahic-et-al-maternal-immunoreactivity-to-herpes-simplex-virus-2-and-risk-of-autism-spectrum-disorder-in-male-offspring
#12
Milada Mahic, Siri Mjaaland, Hege Marie Bøvelstad, Nina Gunnes, Ezra Susser, Michaeline Bresnahan, Anne-Siri Øyen, Bruce Levin, Xiaoyu Che, Deborah Hirtz, Ted Reichborn-Kjennerud, Synnve Schjølberg, Christine Roth, Per Magnus, Camilla Stoltenberg, Pål Surén, Mady Hornig, W Ian Lipkin
[This corrects the article DOI: 10.1128/mSphere.00016-17.].
March 2017: MSphere
https://www.readbyqxmd.com/read/28435254/daphnia-magna-and-xenopus-laevis-as-in-vivo-models-to-probe-toxicity-and-uptake-of-quantum-dots-functionalized-with-gh625
#13
Emilia Galdiero, Annarita Falanga, Antonietta Siciliano, Valeria Maselli, Marco Guida, Rosa Carotenuto, Margherita Tussellino, Lucia Lombardi, Giovanna Benvenuto, Stefania Galdiero
The use of quantum dots (QDs) for nanomedicine is hampered by their potential toxicologic effects and difficulties with delivery into the cell interior. We accomplished an in vivo study exploiting Daphnia magna and Xenopus laevis to evaluate both toxicity and uptake of QDs coated with the membranotropic peptide gH625 derived from the glycoprotein H of herpes simplex virus and widely used for drug delivery studies. We evaluated and compared the effects of QDs and gH625-QDs on the survival, uptake, induction of several responsive pathways and genotoxicity in D...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28433889/quantitative-proteomic-profiling-for-clarification-of-the-crucial-roles-of-lysosomes-in-microbial-infections
#14
Benhong Xu, Yanpan Gao, Shaohua Zhan, Wei Ge
Lysosomes play vital roles in both innate and adaptive immunity. It is widely accepted that lysosomes do not function exclusively as a digestive organelle. It is also involved in the process of immune cells against pathogens. However, the changes in the lysosomal proteome caused by infection with various microbes are still largely unknown, and our understanding of the proteome of the purified lysosome is another obstacle that needs to be resolved. Here, we performed a proteomic study on lysosomes enriched from THP1 cells after infection with Listeria monocytogenes (L...
April 20, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28432334/regulation-of-viral-gene-expression-by-duck-enteritis-virus-ul54
#15
Chaoyue Liu, Anchun Cheng, Mingshu Wang, Shun Chen, Renyong Jia, Dekang Zhu, Mafeng Liu, Kunfeng Sun, Qiao Yang, Ying Wu, Xinxin Zhao, Xiaoyue Chen
Duck enteritis virus (DEV) UL54 is a homologue of human herpes simplex virus-1 (HSV-1) ICP27, which plays essential regulatory roles during infection. Our previous studies indicated that DEV UL54 is an immediate-early protein that can shuttle between the nucleus and the cytoplasm. In the present study, we found that UL54-deleted DEV (DEV-ΔUL54) exhibits growth kinetics, a plaque size and a viral DNA copy number that are significantly different from those of its parent wild-type virus (DEV-LoxP) and the revertant (DEV-ΔUL54 (Revertant))...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28431944/green-seaweed-enteromorpha-compressa-chlorophyta-ulvaceae-derived-sulphated-polysaccharides-inhibit-herpes-simplex-virus
#16
Nayara Lopes, Sayani Ray, Samantha Fernandes Espada, Weslei Andrade Bomfim, Bimalendu Ray, Lígia Carla Faccin-Galhardi, Rosa Elisa Carvalho Linhares, Carlos Nozawa
The herpes simplex virus (HSV) diseases represent a relevant medical and social problem due to their communicability and recurrence following latency. The green algae are rich source of polysaccharides referred to as ulvans, reported as being biologically and pharmacologically active. In this work, we analyzed the activity of seven chemically modified polysaccharides from Enteromorpha compressa (Chlorophyta, Ulvaceae), against HSV. Only the derivative named SU1F1 showed satisfactory viral inhibition activity, with a high selectivity index, and, therefore, it was submitted to analysis of the probable mechanism of action and structure...
April 19, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28423057/insertion-of-a-ligand-to-her2-in-gb-retargets-hsv-tropism-and-obviates-the-need-for-activation-of-the-other-entry-glycoproteins
#17
Biljana Petrovic, Tatiana Gianni, Valentina Gatta, Gabriella Campadelli-Fiume
Herpes simplex virus (HSV) entry into the cells requires glycoproteins gD, gH/gL and gB, activated in a cascade fashion by conformational modifications induced by cognate receptors and intermolecular signaling. The receptors are nectin1 and HVEM (Herpes virus entry mediator) for gD, and αvβ6 or αvβ8 integrin for gH. In earlier work, insertion of a single chain antibody (scFv) to the cancer receptor HER2 (human epidermal growth factor receptor 2) in gD, or in gH, resulted in HSVs specifically retargeted to the HER2-positive cancer cells, hence in highly specific non-attenuated oncolytic agents...
April 19, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28420570/herpesviradae-infections-in-severely-burned-children
#18
Paul Wurzer, Megan R Cole, Robert P Clayton, Gabriel Hundeshagen, Omar Nunez Lopez, Janos Cambiaso-Daniel, Raimund Winter, Ludwik K Branski, Hal K Hawkins, Celeste C Finnerty, David N Herndon, Jong O Lee
OBJECTIVE: Burn-related immunosuppression can promote human herpesviridae infections. However, the effect of these infections on morbidity and mortality after pediatric burn injuries is unclear. METHODS: We retrospectively analyzed pediatric patients with burns ≥10% of the total body surface area (TBSA) who were admitted between 2010 and 2015. On clinical suspicion of a viral infection, antiviral therapy was initiated. Viral infection was confirmed via Tzanck smear, viral culture, and/or PCR...
April 15, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28420448/association-of-cognitive-function-and-liability-to-addiction-with-childhood-herpesvirus-infections-a-prospective-cohort-study
#19
Michael M Vanyukov, Vishwajit L Nimgaonkar, Levent Kirisci, Galina P Kirillova, Maureen D Reynolds, Konasale Prasad, Ralph E Tarter, Robert H Yolken
Liability to substance use disorder (SUD) is largely nonspecific to particular drugs and is related to behavior dysregulation, including reduced cognitive control. Recent data suggest that cognitive mechanisms may be influenced by exposure to neurotropic infections, such as human herpesviruses. In this study, serological evidence of exposure to human herpesvirus Herpes simplex virus Type 1 (HSV-1), cytomegalovirus (CMV), and Epstein-Barr virus (EBV) as well as Toxoplasma gondii was determined in childhood (age ~11 years) in 395 sons and 174 daughters of fathers with or without SUD...
April 19, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28419615/involvement-of-herpes-simplex-virus-type-1-ul13-protein-kinase-in-the-induction-of-socs-genes-the-negative-regulator-of-cytokine-signaling
#20
Yuka Sato, Tetsuo Koshizuka, Kei Ishibashi, Koichi Hashimoto, Ken Ishioka, Kazufumi Ikuta, Shin-Ichi Yokota, Nobuhiro Fujii, Tatsuo Suzutani
The suppressor of cytokine signaling (SOCS) family consists of 8 members and suppresses various cytokine signaling pathways including interferon (IFN) signaling. Therefore, some viruses have evolved molecular mechanisms to induce SOCS proteins in order to escape from host immunity. Herpes simplex virus type 1 (HSV-1) has a mechanism for escaping from type I IFN by induction of SOCS1 and SOCS3 as well. In this study, expression of 8 members of the SOCS family by HSV-1 infection was comparatively analyzed by quantitative reverse transcription PCR...
April 17, 2017: Microbiology and Immunology
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