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https://www.readbyqxmd.com/read/28101180/acute-renal-injury-induced-by-valacyclovir-hydrochloride-a-case-report
#1
Yanning Zhang, Yuxi Cong, Yan Teng
Acyclovir has been a frequently used antiviral agent in the clinical treatment of leukemia, acute encephalitis, malignant tumor and herpes simplex. The adverse effects of this drug have been widely described in clinical practice. In the present study, a case of a 35-year-old female patient diagnosed with herpes simplex, who developed acute renal injury following treatment with valacyclovir hydrochloride, is described. Kidney biopsy, light microscopy and laboratory examination were performed, and all findings revealed the signs of evident vacuolar degeneration of capillary endothelial and renal tubular epithelial cells, erythrocyte aggregation in partial renal tubule and microvilli exfoliation from epithelial cells...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28094044/diagnosis-and-treatment-of-acute-retinal-necrosis-a-report-by-the-american-academy-of-ophthalmology
#2
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
#3
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/28092836/antiviral-drug-acyclovir-exhibits-antitumor-activity-via-targeting-%C3%AE-trcp1-molecular-docking-and-dynamics-simulation-study
#4
Shagufta Shafique, Sajid Rashid
The critical role of βTrCP1 in cancer development makes it a discerning target for the development of small drug like molecules. Currently, no inhibitor exists that is able to target its substrate binding site. Through molecular docking and dynamics simulation assays, we explored the comparative binding pattern of βTrCP1-WD40 domain with ACV and its phospho-derivatives (ACVMP, ACVDP and ACVTP). Consequently, through principal component analysis, βTrCP1-ACVTP was found to be more stable complex by obscuring a reduced conformational space than other systems...
December 31, 2016: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28090487/clinical-characteristics-and-outcomes-of-varicella-zoster-virus-infection-in-children-with-hematologic-malignancies-in-the-acyclovir-era
#5
Seul-Ki Kim, Min Chae Kim, Seung Beom Han, Seong Koo Kim, Jae Wook Lee, Nack-Gyun Chung, Bin Cho, Dae Chul Jeong, Jin Han Kang, Hack-Ki Kim
BACKGROUND: Although intravenous acyclovir therapy is recommended for varicella zoster virus (VZV) infection in immunocompromised children, the clinical characteristics and outcomes of VZV infection in the acyclovir era have rarely been reported. METHODS: The medical records of children diagnosed with varicella or herpes zoster virus, who had underlying hematologic malignancies, were retrospectively reviewed, and the clinical characteristics and outcomes of VZV infection were evaluated...
December 2016: Blood Research
https://www.readbyqxmd.com/read/28090058/herpes-simplex-encephalitis-complicated-by-cerebral-hemorrhage-during-acyclovir-therapy
#6
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/28078864/human-herpesviruses-6-and-7-encephalitis-in-immunocompetent-infants-are-they-really-so-uncommon
#7
L Marseglia, S Manti, G D Angelo, G Stroscio, D Impollonia, S Arena, C Salpietro, E Gitto
Human herpesviruses-6 and -7 (HHV-6 and 7) are considered uncommon causes of central nervous system infection and may occasionally cause encephalitis in young infants, however, the clinical syndrome and incidence are not well defined. In immunosuppressed hosts, reactivation is associated with a worse outcome such as encephalitis, hepatitis, or graft rejection. In immunocompetent hosts, this persistent infection is generally of no consequence. We report 4 cases of immunocompetent critically ill children, affected by HHV-6 and -7 encephalitis, admitted to our Pediatric Intensive Care Unit...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28072664/clinical-pathway-effectiveness-febrile-young-infant-clinical-pathway-in-a-pediatric-emergency-department
#8
Ashlee Lynn Murray, Elizabeth Alpern, Jane Lavelle, Cynthia Mollen
OBJECTIVE: Young infants are often treated in emergency departments (EDs) for febrile illnesses. Any delay in care or ineffective management could lead to increased patient morbidity and mortality. A standardized ED clinical pathway may improve care for these patients. The objective of this study is to evaluate the impact of a febrile young infant clinical pathway implemented in a large, urban children's hospital ED on the timeliness and consistency of care. METHODS: This study used a before-and-after retrospective observational study design comparing 2 separate periods: prepathway from September 2007 through August 2008 and postpathway from September 2009 through August 2010...
January 9, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28067468/sticking-to-the-script-a-curious-case-of-confusion-in-an-esrd-patient
#9
Barry R Gorlitsky, John T Herion
A 60-year-old male Dialysis patient presented with altered mental status and Hypertensive Urgency. He had a significant lesion noted on his glans penis. He was treated for infection and hypertension with expectant management, without significant improvement in his mental acuity. Laboratory and radiologic workup were unrevealing for the etiology. Upon detailed review it was noted he had recently been given Acyclovir for a presumed Herpes Simplex Virus infection. He had been prescribed what is considered correct dosing for an ESRD patient...
January 9, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28061417/concurrent-hyphema-and-orbital-apex-syndrome-following-herpes-zoster-ophthalmicus-in-a-middle-aged-lady
#10
Khairuddin Othman, Li Min Evelyn-Tai, Mohd Noor Raja-Azmi, Muhammed Julieana, Ahmad Tajudin Liza-Sharmini, John Tharakan, Alwi Muhd Besari, Embong Zunaina, Ismail Shatriah
INTRODUCTION: Hyphema and orbital apex syndrome occurring concurrently in a patient with herpes zoster ophthalmicus have not been reported previously. We present a case with these unique findings and discuss the pathogenesis of these conditions and their management. PRESENTATION OF CASE: A 59-year-old Malay lady with underlying diabetes mellitus presented with manifestations of zoster ophthalmicus in the left eye. Two weeks later, she developed total hyphema, and complete ophthalmoplegia suggestive of orbital apex syndrome...
December 21, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28060081/herpes-simplex-virus-keratitis-and-resistance-to-acyclovir
#11
Asim V Farooq
No abstract text is available yet for this article.
February 2017: Cornea
https://www.readbyqxmd.com/read/28059631/acute-necrotizing-encephalopathy-causing-human-bocavirus
#12
Ayse Betul Ergul, Umit Altug, Kursad Aydin, Ahmet Sami Guven, Yasemin Altuner Torun
Acute necrotizing encephalopathy is characterized by multiple, symmetrical lesions involving the thalamus, brainstem, cerebellum, and white matter and develops secondarily to viral infections. Influenza viruses are the most common etiological agents. Here, we present the first case of acute necrotizing encephalopathy to develop secondarily to human bocavirus. A 3-year-old girl presented with fever and altered mental status. She had had a fever, cough, and rhinorrhea for five days. The patient was admitted to the intensive care unit with an initial diagnosis of encephalitis when vomiting, convulsions, and loss of consciousness developed...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28039960/preventive-strategies-against-cytomegalovirus-and-incidence-of-%C3%AE-herpesvirus-infections-in-olid-organ-transplant-recipients-a-nationwide-cohort-study
#13
Cecilia Martin-Gandul, Susanne Stampf, Delphine Héquet, Nicolas J Mueller, Alexia Cusini, Christian van Delden, Nina Khanna, Katia Boggian, Cédric Hirzel, Paola Soccal, Hans H Hirsch, Manuel Pascual, Pascal Meylan, Oriol Manuel
We assessed the impact of antiviral preventive strategies on the incidence of herpes-simplex virus (HSV) and varicella-zoster virus (VZV) infections in a nationwide cohort of transplant recipients. Risk factors for the development of HSV/VZV infection were assessed by Cox PH regression. We included 2781 patients (56% kidney, 20% liver, 10% lung, 7.3% heart, 6.7% others). Overall, 1264 (45%) patients received antiviral prophylaxis [(val)ganciclovir (n=1126) or (val)acyclovir (n=138)]. Incidences for HSV and VZV infections were 28...
December 31, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/28039754/herpes-zoster-in-autologous-hematopoietic-cell-transplant-recipients-in-the-era-of-acyclovir-or-valacyclovir-prophylaxis-and-novel-treatment-and-maintenance-therapies
#14
Farah Sahoo, Joshua Aiden Hill, Hu Xie, Wendy Leisenring, Jessica Yi, Sonia Goyal, Louise E Kimball, Ingi Lee, Sachiko Seo, Chris Davis, Stephen A Pergam, Mary E Flowers, Kai-Li Liaw, Leona Holmberg, Michael Boeckh
The epidemiology of herpes zoster (HZ) in contemporary autologous hematopoietic cell transplant (HCT) recipients, and the impact of acyclovir (ACV)/valacyclovir (VACV) prophylaxis, is not well described. In this observational study from 2002 to 2010, we retrospectively identified 1000 varicella zoster virus (VZV)-seropositive autologous HCT recipients with up to 5 years of follow-up. The incidence of HZ and use of ACV/VACV prophylaxis were determined through review of medical records and mailed questionnaires...
December 28, 2016: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28033514/infections-due-to-alphaherpesviruses-in-early-post-transplant-period-after-allogeneic-haematopoietic-stem-cell-transplantation-results-of-a-5-year-survey
#15
Maciej Przybylski, Anna Majewska, Tomasz Dzieciatkowski, Patrycja Rusicka, Grzegorz W Basak, Barbara Nasilowska-Adamska, Jaroslaw Bilinski, Wieslaw W Jedrzejczak, Marta Wroblewska, Kazimierz Halaburda, Grazyna Mlynarczyk, Agnieszka Tomaszewska
BACKGROUND: Infections caused by human α-herpesviruses usually have a benign course with recurrencies. However, they may become dangerous in immunocompromised hosts. In this case, molecular methods constitute a reliable diagnostic tool enabling rapid assessment of the efficacy of antiviral treatment strategies. OBJECTIVES: We estimated the frequency of alphaherpesviral DNAemia and the viral load during early post-transplantation period after alloHSCT; we also analyzed association of the DNAemia and chosen parameters of the patients...
December 21, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28030457/retinal-vasculitis-associated-with-epstein-barr-virus-infection-a-case-report
#16
Andi A Victor, Nanang Sukmana
PURPOSE: To report a case of retinal vasculitis associated with Epstein-Barr virus infection. METHODS: Case report. RESULTS: A 26-year-old woman came with blurry vision. Funduscopy illustrated vasculitis with frosted branch-like appearance. The patient was treated with systemic acyclovir and topical steroid. Circulating polymerase chain reaction was positive for Epstein-Barr virus antibodies. Two months of treatment resolved the clinical manifestations...
December 23, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28028739/multimodal-imaging-in-a%C3%A2-case-of-bilateral-outer-retinitis-associated-with-mumps-infection
#17
Rim Kahloun, Hager Ben Amor, Imen Ksiaa, Sourour Zina, Bechir Jelliti, Salim Ben Yahia, Moncef Khairallah
PURPOSE: To report the results of multimodal imaging of acute outer retinitis associated to mumps infection. METHODS: A patient with mumps-associated outer retinitis evaluated by color fundus photography, spectral domain optical coherence tomography (SD-OCT), optical coherence tomography angiography, fundus autofluorescence (FAF), fluorescein angiography (FA), and indocyanine green angiography (ICGA). RESULTS: We report a case of a 12-year-old boy who developed bilateral outer retinitis related to mumps...
December 27, 2016: International Ophthalmology
https://www.readbyqxmd.com/read/28027917/profile-of-anti-herpetic-action-of-asp2151-amenamevir-as-a-helicase-primase-inhibitor
#18
Misako Yajima, Hiroshi Yamada, Masaya Takemoto, Tohru Daikoku, Yoshihiro Yoshida, Tan Long, Tomoko Okuda, Kimiyasu Shiraki
The antiherpetic drugs acyclovir (ACV, valaciclovir) and penciclovir (famciclovir) are phosphorylated by viral thymidine kinase and terminate DNA synthesis. ASP2151 (amenamevir) and foscavir (PFA) directly inhibit viral helicase-primase and DNA polymerase, respectively, and inhibit replication of herpes simplex virus (HSV) and varicella-zoster virus. ACV, ASP2151, and PFA all inhibit HSV with a different mechanism of action and as a consequence, the kinetics of viral DNA accumulation and progeny virus production differ...
December 24, 2016: Antiviral Research
https://www.readbyqxmd.com/read/28025408/a-case-of-anti-aquapolin-4-antibody-positive-myelitis-with-hyperhidrosis-following-herpes-zoster
#19
Machiko Suda, Michiko Tsutsumiuchi, Yoshikazu Uesaka, Nobukazu Hayashi
We report an acute myelitis in a 53-year-old woman that occurred in 7 days after the diagnosis of Th5-6 herpes zoster. Clinical examination revealed hyperhidrosis of left side of her face, neck, arm and upper chest. She also had muscle weakness of her left leg and sensory impairment for light touch and temperature in her chest and legs. Spinal cord MRI demonstrated a longitudinal T2-hyperintense lesion extending from Th1 to 7. In the axial imaging, the lesion dominantly located in the left side gray matter...
December 23, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28024582/evaluation-of-poly-lactic-co-glycolic-acid-and-poly-dl-lactide-co-%C3%AE%C2%B5-caprolactone-electrospun-fibers-for-the-treatment-of-hsv-2-infection
#20
Stella E Aniagyei, Lee B Sims, Danial A Malik, Kevin M Tyo, Keegan C Curry, Woihwan Kim, Daniel A Hodge, Jinghua Duan, Jill M Steinbach-Rankins
More diverse multipurpose prevention technologies are urgently needed to provide localized, topical pre-exposure prophylaxis against sexually transmitted infections (STIs). In this work, we established the foundation for a multipurpose platform, in the form of polymeric electrospun fibers (EFs), to physicochemically treat herpes simplex virus 2 (HSV-2) infection. To initiate this study, we fabricated different formulations of poly(lactic-co-glycolic acid) (PLGA) and poly(dl-lactide-co-ε-caprolactone) (PLCL) EFs that encapsulate Acyclovir (ACV), to treat HSV-2 infection in vitro...
March 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
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