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https://www.readbyqxmd.com/read/29134428/the-influence-of-hepatic-and-renal-impairment-on-the-pharmacokinetics-of-a-treatment-for-herpes-zoster-amenamevir-asp2151-phase-1-open-label-single-dose-parallel-group-studies
#1
Tomohiro Kusawake, Donna Kowalski, Akitsugu Takada, Kota Kato, Masataka Katashima, James J Keirns, Michaelene Lewand, Kenneth C Lasseter, Thomas C Marbury, Richard A Preston
INTRODUCTION: Amenamevir (ASP2151) is a nonnucleoside human herpesvirus helicase-primase inhibitor that was approved in Japan for the treatment of herpes zoster (shingles) in 2017. This article reports the results of two clinical trials that investigated the effects of renal and hepatic impairment on the pharmacokinetics of amenamevir. METHODS: These studies were phase 1, open-label, single-dose (oral 400 mg), parallel-group studies evaluating the pharmacokinetics, safety, and tolerability of amenamevir in healthy participants and participants with moderate hepatic impairment and mild, moderate, and severe renal impairment...
November 13, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/29128385/the-effectiveness-of-shingles-vaccine-among-albertans-aged-50%C3%A2-years-or-older-a-retrospective-cohort-study
#2
Bruce M McDonald, Douglas C Dover, Kimberley A Simmonds, Christopher A Bell, Lawrence W Svenson, Margaret L Russell
PURPOSE: We assessed the effectiveness of shingles vaccine in preventing incident shingles among Alberta residents aged 50 years or older over the period 2009 - 2015, using administrative health data. METHODS: The cohort comprised of Albertans from the Alberta Health Care Insurance Plan Registry (AHCIP) as of June 30, 2009 and aged 50 years or older. Those who received shingles vaccine were identified from the provincial pharmaceutical information network. The occurrence of incident shingles was identified through both inpatient and outpatients/community care data...
November 8, 2017: Vaccine
https://www.readbyqxmd.com/read/29116592/varicella-zoster-virus-orf7-interacts-with-orf53-and-plays-a-role-in-its-trans-golgi-network-localization
#3
Wei Wang, Wenkun Fu, Dequan Pan, Linli Cai, Jianghui Ye, Jian Liu, Che Liu, Yuqiong Que, Ningshao Xia, Hua Zhu, Tong Cheng
Varicella-zoster virus (VZV) is a neurotropic alphaherpesvirus that causes chickenpox and shingles. ORF7 is an important virulence determinant of VZV in both human skin and nerve tissues, however, its specific function and involved molecular mechanism in VZV pathogenesis remain largely elusive. Previous yeast two-hybrid studies on intraviral protein-protein interaction network in herpesviruses have revealed that VZV ORF7 may interact with ORF53, which is a virtually unstudied but essential viral protein. The aim of this study is to identify and characterize VZV ORF53, and to investigate its relationship with ORF7...
October 2017: Virologica Sinica
https://www.readbyqxmd.com/read/29094693/a-kilonova-as-the-electromagnetic-counterpart-to-a-gravitational-wave-source
#4
S J Smartt, T-W Chen, A Jerkstrand, M Coughlin, E Kankare, S A Sim, M Fraser, C Inserra, K Maguire, K C Chambers, M E Huber, T Krühler, G Leloudas, M Magee, L J Shingles, K W Smith, D R Young, J Tonry, R Kotak, A Gal-Yam, J D Lyman, D S Homan, C Agliozzo, J P Anderson, C R Angus, C Ashall, C Barbarino, F E Bauer, M Berton, M T Botticella, M Bulla, J Bulger, G Cannizzaro, Z Cano, R Cartier, A Cikota, P Clark, A De Cia, M Della Valle, L Denneau, M Dennefeld, L Dessart, G Dimitriadis, N Elias-Rosa, R E Firth, H Flewelling, A Flörs, A Franckowiak, C Frohmaier, L Galbany, S González-Gaitán, J Greiner, M Gromadzki, A Nicuesa Guelbenzu, C P Gutiérrez, A Hamanowicz, L Hanlon, J Harmanen, K E Heintz, A Heinze, M-S Hernandez, S T Hodgkin, I M Hook, L Izzo, P A James, P G Jonker, W E Kerzendorf, S Klose, Z Kostrzewa-Rutkowska, M Kowalski, M Kromer, H Kuncarayakti, A Lawrence, T B Lowe, E A Magnier, I Manulis, A Martin-Carrillo, S Mattila, O McBrien, A Müller, J Nordin, D O'Neill, F Onori, J T Palmerio, A Pastorello, F Patat, G Pignata, Ph Podsiadlowski, M L Pumo, S J Prentice, A Rau, A Razza, A Rest, T Reynolds, R Roy, A J Ruiter, K A Rybicki, L Salmon, P Schady, A S B Schultz, T Schweyer, I R Seitenzahl, M Smith, J Sollerman, B Stalder, C W Stubbs, M Sullivan, H Szegedi, F Taddia, S Taubenberger, G Terreran, B van Soelen, J Vos, R J Wainscoat, N A Walton, C Waters, H Weiland, M Willman, P Wiseman, D E Wright, Ł Wyrzykowski, O Yaron
Gravitational waves were discovered with the detection of binary black-hole mergers and they should also be detectable from lower-mass neutron-star mergers. These are predicted to eject material rich in heavy radioactive isotopes that can power an electromagnetic signal. This signal is luminous at optical and infrared wavelengths and is called a kilonova. The gravitational-wave source GW170817 arose from a binary neutron-star merger in the nearby Universe with a relatively well confined sky position and distance estimate...
November 2, 2017: Nature
https://www.readbyqxmd.com/read/29046461/human-embryonic-stem-cell-derived-neurons-are-highly-permissive-for-varicella-zoster-virus-lytic-infection
#5
Tomohiko Sadaoka, Cindi L Schwartz, Labchan Rajbhandari, Arun Venkatesan, Jeffrey I Cohen
Varicella-zoster virus (VZV) is highly cell-associated when grown in culture and has a much higher (4,000 to 20,000-fold increased) particle-to-plaque forming unit (PFU) ratio in vitro than herpes simplex virus (HSV). In contrast, VZV is highly infectious in vivo by airborne transmission. Neurons are major targets for VZV in vivo, in which the virus can establish latency and reactivate to produce infectious virus. Using neurons derived from human embryonic stem cells (hESC) and cell-free wild-type (WT) VZV, we demonstrate that neurons are nearly 100 times more permissive for WT VZV infection than very early passage human embryonic lung cells or MRC-5 diploid human fibroblasts, the cells used for vaccine production or virus isolation...
October 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28928442/genome-wide-association-and-hla-region-fine-mapping-studies-identify-susceptibility-loci-for-multiple-common-infections
#6
Chao Tian, Bethann S Hromatka, Amy K Kiefer, Nicholas Eriksson, Suzanne M Noble, Joyce Y Tung, David A Hinds
Infectious diseases have a profound impact on our health and many studies suggest that host genetics play a major role in the pathogenesis of most of them. We perform 23 genome-wide association studies for common infections and infection-associated procedures, including chickenpox, shingles, cold sores, mononucleosis, mumps, hepatitis B, plantar warts, positive tuberculosis test results, strep throat, scarlet fever, pneumonia, bacterial meningitis, yeast infections, urinary tract infections, tonsillectomy, childhood ear infections, myringotomy, measles, hepatitis A, rheumatic fever, common colds, rubella and chronic sinus infection, in over 200,000 individuals of European ancestry...
September 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28910710/outer-nuclear-membrane-fusion-of-adjacent-nuclei-in-varicella-zoster-virus-induced-syncytia
#7
Wei Wang, Lianwei Yang, Xiumin Huang, Wenkun Fu, Dequan Pan, Linli Cai, Jianghui Ye, Jian Liu, Ningshao Xia, Tong Cheng, Hua Zhu
Syncytia formation has been considered important for cell-to-cell spread and pathogenesis of many viruses. As a syncytium forms, individual nuclei often congregate together, allowing close contact of nuclear membranes and possibly fusion to occur. However, there is currently no reported evidence of nuclear membrane fusion between adjacent nuclei in wild-type virus-induced syncytia. Varicella-zoster virus (VZV) is one typical syncytia-inducing virus that causes chickenpox and shingles in humans. Here, we report, for the first time, an interesting observation of apparent fusion of the outer nuclear membranes from juxtaposed nuclei that comprise VZV syncytia both in ARPE-19 human epithelial cells in vitro and in human skin xenografts in the SCID-hu mouse model in vivo...
December 2017: Virology
https://www.readbyqxmd.com/read/28895088/prevalence-of-a-history-of-prior-varicella-herpes-zoster-infection-in-multiple-sclerosis
#8
Ali Manouchehrinia, Radu Tanasescu, Huner Kareem, Oltita P Jerca, Fouzia Jabeen, Rachelle Shafei, Judith Breuer, Keith Neal, William Irving, Cris S Constantinescu
Varicella zoster virus (VZV) infection has been implicated in multiple sclerosis (MS), but direct causal involvement has been disputed. Nevertheless, knowledge of VZV exposure is important, given the risk of serious complications of first exposure while undergoing immunosuppressive treatment, in particular with fingolimod. We distributed questionnaires to MS clinic patients, requesting information about history of chickenpox, sibling/household/occupational exposure, history of zoster (shingles), and disease-modifying treatment...
September 11, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28871477/-diagnostics-and-management-of-herpes-zoster-ophthalmicus
#9
R N Werner, N-I Steinhorst, A Nast, U Pleyer
Herpes zoster (HZ, shingles) represents the secondary manifestation of an infection with varicellazoster virus (VZV). A reactivation of dormant VZV in the ophthalmic branch of the fifth cranial nerve leads to ophthalmic HZ (HZO). The predominantly older and immune compromised patients often present with eye involvement (approximately 50%) as well as characteristic skin changes. Clinical manifestations include the cornea and conjunctiva but anterior uveitis and (rarely) acute retinal necrosis may also occur...
October 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28853191/a-national-survey-of-nurse-training-confidence-and-competence-in-educating-patients-commencing-methotrexate-therapy
#10
Sandra Robinson, Andrew Hassell, Sarah Ryan, Nicola Adams, David Walker
INTRODUCTION: Methotrexate is routinely used to treat active disease in inflammatory arthritis. There have previously been patient safety concerns associated with methotrexate usage in practice. Most patients commencing methotrexate treatment are seen by the rheumatology nurse, to receive education (often referred to as drug counselling) on this agent prior to starting treatment. Yet, there are no recommended criteria regarding education or experience to ensure minimum competence of the rheumatology nurse...
August 29, 2017: Musculoskeletal Care
https://www.readbyqxmd.com/read/28834954/low-varicella-zoster-virus-seroprevalence-among-young-children-in-the-democratic-republic-of-the-congo
#11
Reena H Doshi, Vivian H Alfonso, Patrick Mukadi, Nicole A Hoff, Sue Gerber, Ado Bwaka, Stephen G Higgins, Brian Cowell, Guillaume Ngoie Mwamba, Emile Okitolonda, Jean-Jacques Muyembe-Tamfum, Anne W Rimoin
BACKGROUND: Varicella zoster virus (VZV) causes both varicella (chickenpox) and herpes zoster (shingles) and is associated with significant global morbidity. Most epidemiological data on VZV come from high-come countries and to date there are limited data on the burden of VZV in Africa. METHODS: We assessed the seroprevalence of VZV antibodies among children in the Democratic Republic of Congo in collaboration with the 2013-2014 Demographic and Health Survey (DHS)...
August 19, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28819596/complex-regional-pain-syndrome-following-an-episode-of-herpes-zoster-a-case-report
#12
Christopher E Marrero, Neuyen Mclean, Keyana Varnado
INTRODUCTION: Complex regional pain syndrome (CRPS) is characterized by searing pain, hyperalgesia, edema, allodynia, and skin changes. CRPS may be difficult to diagnose and to treat given poorly understood mechanisms as well as its presentation of symptoms that may mimic common conditions such as joint stiffness in this condition as well as rheumatoid arthritis. CASE REPORT: A 71-year-old female presented to our clinic post shingles of the right upper extremity...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28765478/valacyclovir-associated-neurotoxicity-treated-with-intensification-of-peritoneal-dialysis
#13
Bhanu Prasad, Mark McIsaac, Julie Toppings
We report a 57-year-old woman with end-stage renal disease (ESRD) on maintenance peritoneal dialysis (PD), who presented to the emergency room (ER) by ambulance with complaints of confusion and altered sensorium for 48 hours. She had been reviewed in a walk-in clinic 72 hours earlier and had been prescribed the standard 1000 mg three times per day of valacyclovir for an acute attack of shingles instead of 500 mg once a day on ESRD. In the ER, she received further 500 mg of intravenous acyclovir as herpes encephalitis was clinically suspected...
July 31, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28752294/characterization-and-phylogenetic-analysis-of-varicella-zoster-virus-strains-isolated-from-korean-patients
#14
Min Ho Kim, Jeong Seon Jeon, In Kyo Kim, Ji Seon Park, Hosun Park, Ok Sarah Shin, Chan Hee Lee
Varicella-zoster virus (VZV) is a causative agent of chickenpox in primary infection and shingles after its reactivation from latency. Complete or almost-complete genomic DNA sequences for various VZV strains have been reported. Recently, clinical VZV strains were isolated from Korean patients whose genome was sequenced using high-throughput sequencing technology. In this study, we analyzed single nucleotide polymorphism (SNP) of VZV strains to genetically characterize Korean clinical isolates. Phylogenetic analyses revealed that three Korean strains, YC01, YC02, and YC03, were linked to clade 2...
August 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28748773/differentiation-between-wild-type-and-vaccines-strains-of-varicella-zoster-virus-vzv-based-on-four-single-nucleotide-polymorphisms
#15
L Jin, S Xu, P A C Maple, W Xu, K E Brown
Varicella-zoster virus (VZV) infection (chickenpox) results in latency and subsequent reactivation manifests as shingles. Effective attenuated vaccines (vOka) are available for prevention of both illnesses. In this study, an amplicon-based sequencing method capable of differentiating between VZV wild-type (wt) strains and vOka vaccine is described. A total of 44 vesicular fluid specimens collected from 43 patients (16 from China and 27 from the UK) with either chickenpox or shingles were investigated, of which 10 had received previous vaccination...
September 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28720638/a-case-of-shingles-following-auricular-acupuncture
#16
Steven A Kewish
This is a case report of an occurrence of shingles (herpes zoster [HZ]) following auricular acupuncture. The patient developed acute reactivation HZ in the V1 distribution of the right trigeminal nerve involving the forehead, scalp, and medial upper eyelid 13 days after being treated with auricular acupuncture for chronic low-back pain. The lesions were initially painless, but they clustered and became painful within 2 days. The patient was treated with oral valacyclovir 1000 mg, 3 times daily for 7 days, and ibuprofen as needed...
July 2017: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28714350/activation-and-expression-of-%C3%AE-calpain-in-dorsal-root-contributes-to-rtx-induced-mechanical-allodynia
#17
Xiao-Cui Yuan, Cai-Hua Wu, Fang Gao, Hong-Ping Li, Hong-Chun Xiang, He Zhu, Xiao-Li Pan, Li-Xue Lin, Yan-Shen Liu, Wei Yu, Bo Tian, Xian-Fang Meng, Man Li
Background Calpain is a calcium-dependent cysteine protease, and inhibition of calpain by pre-treatment with MDL28170 attenuated the rat mechanical allodynia in a variety of pain models. Postherpetic neuralgia (Shingles) is a neuropathic pain conditioned with the presence of profound mechanical allodynia. Systemic injection of resiniferatoxin can reproduce the clinical symptoms of postherpetic neuralgia. In this study, we determined to study whether activation of calpain contributes to cleave the myelin basic protein of dorsal root and is involved in resiniferatoxin-induced mechanical allodynia of postherpetic neuralgia animal model...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28696200/vaccination-coverage-among-adults-aged-65-and-over-united-states-2015
#18
Tina Norris, Anjel Vahratian, Robin A Cohen
Data from the National Health Interview Survey ? Among adults aged 65 and over, more than two-thirds had an influenza vaccine in the past 12 months (69.0%). ? More than one in two adults aged 65 and over had a tetanus vaccine in the past 10 years (56.9%). ? More than 6 of 10 adults aged 65 and over had ever had a pneumococcal vaccine (63.6%), while a little more than one-third had ever had a shingles vaccine (34.2%). ? Among adults aged 65 and over, vaccination coverage was highest for non-Hispanic white adults compared with non- Hispanic black and Hispanic adults...
June 2017: NCHS Data Brief
https://www.readbyqxmd.com/read/28660616/added-value-of-sending-photograph-in-diagnosing-a-medical-disease-declared-at-sea-experience-of-the-french-tele-medical-assistance-service
#19
Emilie Dehours, Alexandre Saccavini, Pierre Roucolle, Patrick Roux, Vincent Bounes
The maritime medical tele-consultation carried out by a doctor from the Toulouse Tele-Medical Assistance Service is currently based on tele-consultation using radiotelegraphy and the complementary transmission of data (photographs, electrocardiogram) via the Internet. In a previous article, we presented the benefits of photograph transmission for trauma management in isolated areas. Through this new series of cases, we wanted to expose the aspect of the medical pathologies and the contribution of sending photographs in their management...
2017: International Maritime Health
https://www.readbyqxmd.com/read/28637759/role-of-the-jnk-pathway-in-varicella-zoster-virus-lytic-infection-and-reactivation
#20
Sravya Kurapati, Tomohiko Sadaoka, Labchan Rajbhandari, Balaji Jagdish, Priya Shukla, Mir A Ali, Yong Jun Kim, Gabsang Lee, Jeffrey I Cohen, Arun Venkatesan
Mechanisms of neuronal infection by varicella-zoster virus (VZV) have been challenging to study due to the relatively strict human tropism of the virus and the paucity of tractable experimental models. Cellular mitogen-activated protein kinases (MAPKs) have been shown to play a role in VZV infection of nonneuronal cells, with distinct consequences for infectivity in different cell types. Here, we utilize several human neuronal culture systems to investigate the role of one such MAPK, the c-Jun N-terminal kinase (JNK), in VZV lytic infection and reactivation...
September 1, 2017: Journal of Virology
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