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https://www.readbyqxmd.com/read/28432714/high-human-cytomegalovirus-dnaemia-early-post-transplantation-associates-with-irreversible-and-progressive-loss-of-renal-function
#1
Wouter T Lollinga, Lilli Rurenga-Gard, Willem van Doesum, Rik van Bergen, Arjan Diepstra, Judith M Vonk, Annelies Riezebos-Brilman, Hgm Niesters, Willem J van Son, Jacob van den Born, Jan-Stephan Sanders
BACKGROUND: Transplant recipients are prone to viral infections, which could affect renal transplantation outcome. Our aim was to assess the effects of early human cytomegalovirus (CMV) DNAemia on transplant renal function. METHODS: 264 (age 50.9±13.5; male 55%) Renal transplantation recipients undergoing preemptive anti-CMV therapy were retrospectively categorized based on early (<3 months post-Tx) CMV peak viral load (PVL); PVL≤536, PVL536-6310 or PVL>6310 International Units/ml (IU/ml)...
April 22, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28432338/crispr-cas9-mediated-inactivation-of-argonaute-2-reveals-its-differential-involvement-in-antiviral-responses
#2
Márta Ludman, József Burgyán, Károly Fátyol
RNA silencing constitutes an important antiviral mechanism in plants. Small RNA guided Argonaute proteins fulfill essential role in this process by acting as executors of viral restriction. Plants encode multiple Argonaute proteins of which several exhibit antiviral activities. A recent addition to this group is AGO2. Its involvement in antiviral responses is established predominantly by studies employing mutants of Arabidopsis thaliana. In the virological model plant, Nicotiana benthamiana, the contribution of AGO2 to antiviral immunity is much less certain due to the lack of appropriate genetic mutants...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28431127/cytomegalovirus-cmv-kinetics-following-primary-infection-in-healthy-women
#3
Michael S Forman, Dhananjay Vaidya D, Oluwaseyi Bolorunduro, Marie Diener-West, Robert F Pass, Ravit Arav-Boger
The kinetics of CMV DNA in infected asymptomatic hosts are largely unknown. We measured viral load (VL) in 124 fluid samples (oral, urine, vaginal, blood) collected from 21 women who acquired CMV. A quantitative real-time PCR of US17, which correlated with clinical assays, was used. VL decreased following primary infection in all fluids. The geometric mean VL of vaginal fluid was significantly higher than that of other sources: oral (3.89 95% CI [1.43 - 10.57]), urine (6.36 95% CI [2.48 - 16.32]) and whole blood (11...
April 18, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28431019/identifying-cytomegalovirus-cmv-complications-using-the-quantiferon-cmv-assay-after-allogeneic-hematopoietic-stem-cell-transplantation
#4
Michelle K Yong, Paul U Cameron, Monica Slavin, C Orla Morrissey, Krystal Bergin, Andrew Spencer, David Ritchie, Allen C Cheng, Assia Samri, Guislaine Carcelain, Brigitte Autran, Sharon R Lewin
Background: Cytomegalovirus (CMV) reactivation and disease remain a major cause of morbidity and mortality in hematopoietic stem cell transplant (HSCT) recipients. A simple test to identify recovery of CMV-specific T-cell immunity could assist clinicians in managing CMV-related complications. Methods: In an observational multi-centre prospective study of 94 allogeneic HSCT recipients we evaluated CMV-specific T-cell immunity at baseline, 3, 6, 9 and 12 months post-transplant using the Quantiferon-CMV®, an ELISpot assay and in a subset, we also evaluated intracellular cytokine staining (ICS)...
April 18, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28430958/survey-of-institutional-policies-for-provision-of-cmv-safe-blood-in-ontario
#5
Laura Finlay, Pria Nippak, James Tiessen, Winston Isaac, Jeannie Callum, Christine Cserti-Gazdewich
Objectives: Debate continues on whether leukoreduction alone (LR) is sufficiently similar to leukoreduced cellular products drawn from cytomegalovirus (CMV)-seronegative (SN) donors to minimize the risk of transfusion-transmitted CMV (TT-CMV). We sought to determine the policy, inventory, and practice landscape of the province for TT-CMV mitigation. Methods: A web-based survey was distributed to hospitals in Ontario by Canadian Blood Services to collect data on their policies with respect to TT-CMV prevention...
November 1, 2016: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28430149/synthesis-and-antiviral-activity-of-novel-1-4-pentadien-3-one-derivatives-containing-a-1-3-4-thiadiazole-moiety
#6
Lu Yu, Xiuhai Gan, Dagui Zhou, Fangcheng He, Song Zeng, Deyu Hu
1,4-Pentadien-3-one derivatives derived from curcumin possess excellent inhibitory activity against plant viruses. On the basis of this finding, a series of novel 1,4-pentadien-3-one derivatives containing a 1,3,4-thiadiazole moiety were designed and synthesized, and their structures confirmed by IR, ¹H-NMR, and (13)C-NMR spectroscopy and elemental analysis. The antiviral activities of the title compounds were evaluated against tobacco mosaic virus (TMV) and cucumber mosaic virus (CMV) in vivo. The assay results showed that most of compounds had remarkable antiviral activities against TMV and CMV, among which compounds 4b, 4h, 4i, 4k, 4o, and 4q exhibited good curative, protection, and inactivation activity against TMV...
April 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28426459/the-association-between-cmv-viremia-or-endoscopic-features-and-histopathological-characteristics-of-cmv-colitis-in-patients-with-underlying-ulcerative-colitis
#7
Hong Yang, Weixun Zhou, Hong Lv, Dongsheng Wu, Yunlu Feng, Huijun Shu, Meng Jin, Lingling Hu, Qiang Wang, Dong Wu, Jie Chen, Jiaming Qian
BACKGROUND: Cytomegalovirus (CMV) infection has been shown to be related to severe or steroid-refractory ulcerative colitis (UC) flare-ups. The aim of this study was to evaluate the endoscopic and pathological characteristics of CMV colitis in patients with UC and to assess the predictive value of the endoscopic and pathological features of CMV colitis. METHODS: A total of 50 consecutive UC patients with CMV infection who were admitted to Peking Union Medical College Hospital from 2010 to 2015 were enrolled in this study...
May 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28426277/topical-ganciclovir-in-cytomegalovirus-anterior-uveitis
#8
Joelle Antoun, François Willermain, Dorine Makhoul, Elie Motulsky, Laure Caspers, Lia Judice Relvas
PURPOSE: To study the effects of topical ganciclovir 0.15% gel on cytomegalovirus (CMV) anterior uveitis in a tertiary uveitis referral center in Brussels, Belgium. METHODS: A retrospective study of patients with a clinical diagnosis of CMV anterior uveitis/endotheliitis demonstrated by a positive polymerase chain reaction and/or Goldmann-Witmer coefficient (GWc). RESULTS: We report a series of 15 patients presenting clinical characteristics of CMV anterior uveitis...
April 20, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28423469/cytomegalovirus-peritonitis-after-kidney-transplantation-diagnosed-through-histopathological-examination
#9
Kiyohiko Hotta, Yuichiro Fukasawa, Yoshiki Wada, Nobuyuki Fukuzawa, Toshimori Seki, Hiroshi Harada
Among organ transplant recipients, cytomegalovirus (CMV) commonly results in various types of infection such as pneumonitis, hepatitis, and enterocolitis. However, CMV peritonitis is very rare and difficult to diagnose owing to lack of visible clinical signs. We present a case of a 35-year-old female kidney recipient who developed abdominal pain and urinary retention caused by CMV peritonitis. To our knowledge, this is the first case report of CMV peritonitis after organ transplantation to be diagnosed through histopathological examination...
April 19, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28423197/diabetic-kidney-transplant-recipients-impaired-infection-control-and-increased-alloreactivity
#10
Thomas Schachtner, Maik Stein, Petra Reinke
BACKGROUND: Posttransplantation diabetes mellitus (PTDM) has been associated with inferior patient and allograft outcomes. However, previous studies didn't identify differences in infection control and alloreactivity. METHODS: We studied 449 kidney transplant recipients (KTRs) between 2005 and 2013. 50 (11.1%) KTRs were diagnosed with PTDM and 60 (13.4%) KTRs with pre-existing diabetes. Samples were collected pretransplantation, at +1, +2, +3 months posttransplantation...
April 19, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28420890/endoscopic-manifestations-and-clinical-characteristics-of-cytomegalovirus-infection-in-the-upper-gastrointestinal-tract
#11
Masaya Iwamuro, Eisei Kondo, Takehiro Tanaka, Hideharu Hagiya, Seiji Kawano, Yoshiro Kawahara, Fumio Otsuka, Hiroyuki Okada
We retrospectively analyzed the cases of 14 patients (9 women, 5 men, mean age: 51.6 years) with cytomegalovirus (CMV) involvement in the esophagus, stomach, and/or duodenum diagnosed at a single center, to determine their endoscopic features and clinical backgrounds. Thirteen patients (92.9%) had hematologic disease; the other had rheumatoid arthritis. Of the former, 12 patients underwent allogeneic hematopoietic stem cell transplantation, and 9 of these patients had graft-versus-host disease (GVHD) before undergoing esophagogastroduodenoscopy (EGD)...
April 2017: Acta Medica Okayama
https://www.readbyqxmd.com/read/28420570/herpesviradae-infections-in-severely-burned-children
#12
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
#13
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/28419562/international-opinions-and-national-surveillance-suggest-insufficient-consensus-regarding-the-recognition-and-management-practices-of-infants-with-congenital-cytomegalovirus-infections
#14
J Gunkel, J Nijman, M A Verboon-Maciolek, T F W Wolfs, L S de Vries
AIM: This study evaluated the recognition and management practices with regard to congenital cytomegalovirus (cCMV) infections by a select group of experts and through a national surveillance study. METHOD: A questionnaire was sent to international experts involved in mother and infant care in 2014-2015. Monthly surveillance was conducted among Dutch paediatricians for cases of cCMV infections from 2013 until 2015. RESULTS: The questionnaire was completed by 63/103 (62%) respondents, who indicated that recognition and management practices varied...
April 17, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28419213/risks-factors-for-congenital-cmv-infection-following-primary-and-non-primary-maternal-infection-a-prospective-neonatal-screening-study-using-pcr-in-saliva
#15
Marianne Leruez-Ville, Jean-François Magny, Sophie Couderc, Christine Pichon, Marine Parodi, Laurence Bussières, Tiffany Guilleminot, Idir Ghout, Yves Ville
Background: The design of diagnostic and preventive strategies have been prevented by gaps in knowledge of the epidemiology of congenital CMV (cCMV) with the type of maternal infection as well as the lack of large-scale neonatal screening tools. Methods: 11,715 consecutive newborns were screened for cCMV by PCR in saliva. Prevalence, type of maternal infection, socio-demographic, obstetrical and serological data were analyzed. Results: Positive predictive value of CMV PCR in saliva was 59%, false positive results were associated with lower viral loads (p<0...
April 17, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28416012/congenital-cytomegalovirus-infection-advances-and-challenges-in-diagnosis-prevention-and-treatment
#16
REVIEW
Concetta Marsico, David W Kimberlin
Cytomegalovirus (CMV) is the most frequent cause of congenital infection worldwide, with an estimated incidence in developing countries of 0.6-0.7% of all live births. The burden of disease related to congenital CMV in substantial, as it is the leading non-genetic cause of sensorineural hearing loss and an important cause of neurodevelopmental disabilities in children. Despite its clinical significance, congenital CMV infection often goes undetected because the majority of infected infants are asymptomatic at birth and screening programs have not been substantially implemented...
April 17, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28414184/mouse-cytomegalovirus-encoded-immunoevasins-and-evolution-of-ly49-receptors-sidekicks-or-enemies
#17
REVIEW
Jelena Zeleznjak, Branka Popovic, Astrid Krmpotic, Stipan Jonjic, Vanda Juranic Lisnic
Cytomegaloviruses (CMVs) have dedicated a large portion of their genome towards immune evasion targeting many aspects of the host immune system, particularly NK cells. However, the host managed to cope with the infection by developing multiple mechanisms to recognize viral threat and counterattack it, thus illustrating never-ending evolutionary interplay between CMV and its host. In this review, we will focus on several mechanisms of NK cell evasion by mouse CMV (MCMV), the role of host inhibitory and activating Ly49 receptors involved in the virus control and acquisition of adaptive features by NK cells as a consequence of MCMV infection...
April 13, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28409071/acute-cytomegalovirus-cmv-infection-associated-with-hemophagocytic-lymphohistiocytosis-hlh-in-an-immunocompetent-host-meeting-all-eight-hlh-2004-diagnostic-criteria
#18
Alex K Bonnecaze, Wesley G Willeford, Peter Lichstein, Jill Ohar
Hemophagocytic lymphohistiocytosis (HLH) is a rare and often deadly syndrome characterized by severe inflammation and cytokine dysregulation. The disease is defined by the HLH-2004 criteria, requiring five of eight findings, and is further differentiated into either primary or secondary causes. Primary HLH tends to be of genetic etiology, while secondary HLH results from other insults such as infection. Secondary HLH is most commonly associated with viral infections in immunocompromised patients. Acute cytomegalovirus (CMV) associated HLH in the immunocompetent host is exceedingly rare and only documented in four case reports to date...
March 2, 2017: Curēus
https://www.readbyqxmd.com/read/28407831/-a-meta-analysis-of-the-efficacy-of-high-frequency-oscillatory-ventilation-versus-conventional-mechanical-ventilation-for-treating-pediatric-acute-respiratory-distress-syndrome
#19
Jun-Ying Qiao, Yuan-Zhe Li, He-Yi Wang, Shuai-Dan Zhang
OBJECTIVE: To systematically assess the clinical efficacy of high-frequency oscillatory ventilation (HFOV) and conventional mechanical ventilation (CMV) for treating pediatric acute respiratory distress syndrome (ARDS). METHODS: Data from randomized controlled trials comparing HFOV and CMV in the treatment of pediatric ARDS published before July 2016 were collected from the Cochrane Library, PubMed, Medline, CNKI, and Wanfang Data. Literature screening, data extraction, and quality assessment were performed by two independent reviewers according to the inclusion and exclusion criteria...
April 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28407149/determination-of-the-biological-form-of-human-cytomegalovirus-dna-in-the-plasma-of-solid-organ-transplant-recipients
#20
Yupin Tong, Xiaoli L Pang, Curtis Mabilangan, Jutta K Preiksaitis
Background.: Whether cytomegalovirus (CMV) DNA exists in plasma as virion-associated or free DNA is uncertain. Methods.: An assay combining DNase I digestion and CMV quantitative polymerase chain reaction (DNase-CMV-qPCR) was developed to differentiate free naked DNA from virion DNA. One hundred three frozen and 10 fresh CMV DNA-positive plasma samples from solid-organ transplant recipients (SOTRs) were tested. Three sets of paired qPCR (P-qPCR) assays with amplicons of variable length were used to study CMV DNA fragmentation in 20 SOTR plasma samples, viral stocks (Towne, Merlin, AD169) and the first World Health Organization (WHO) international standard (IS) for CMV DNA...
April 12, 2017: Journal of Infectious Diseases
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