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https://www.readbyqxmd.com/read/29770447/effectiveness-of-immunoglobulin-prophylaxis-in-reducing-clinical-complications-of-hematopoietic-stem-cell-transplantation-a-systematic-review-and-meta-analysis
#1
REVIEW
Hilalion Ahn, Jason Tay, Beverley Shea, Brian Hutton, Risa Shorr, Greg A Knoll, Donald William Cameron, Juthaporn Cowan
BACKGROUND: Prophylactic immunoglobulin has been used with varying efficacy to reduce complications in hematopoietic stem cell transplant recipients. STUDY DESIGN AND METHODS: A systematic review and meta-analysis was conducted of randomized controlled trials that assessed clinical outcomes (overall survival, transplant-related mortality, graft-versus-host disease [GVHD], veno-occlusive disease [VOD], interstitial pneumonitis, disease relapse, cytomegalovirus [CMV] infection and disease, non-CMV infection) of immunoglobulin prophylaxis versus placebo in hematopoietic stem cell transplant recipients...
May 16, 2018: Transfusion
https://www.readbyqxmd.com/read/29769344/efficient-delivery-of-hcmv-t-cell-antigens-by-attenuated-sendai-virus-vectors
#2
Richard Kiener, Markus Fleischmann, Marian Alexander Wiegand, Niels A W Lemmermann, Christiane Schwegler, Christine Kaufmann, Angelique Renzaho, Simone Thomas, Eva Felder, Hans Helmut Niller, Benedikt Asbach, Ralf Wagner
Human Cytomegalovirus (HCMV) represents a major cause of clinical complications during pregnancy as well as immunosuppression and the licensing of a protective HCMV vaccine remains an unmet global need. Herein, we designed and validated novel Sendai virus (SeV) vectors delivering T cell immunogens IE-1 and pp65. To enhance vector safety, we used a replication-deficient strain (rdSeV) that infects target cells in a non-productive manner while retaining viral gene expression. In this study, we explored the impact that transduction with rdSeV has on human dendritic cells (DCs) by comparing it to the parental, replication-competent Sendai virus strain (rcSeV) as well as the poxvirus strain Modified Vaccinia Ankara (MVA)...
May 16, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29769062/seroprevalence-of-hiv-htlv-cmv-hbv-and-rubella-virus-infections-in-pregnant-adolescents-who-received-care-in-the-city-of-bel%C3%A3-m-par%C3%A3-northern-brazil
#3
Aubaneide Batista Guerra, Leonardo Quintão Siravenha, Rogério Valois Laurentino, Rosimar Neris Martins Feitosa, Vânia Nakauth Azevedo, Antonio Carlos Rosário Vallinoto, Ricardo Ishak, Luiz Fernando Almeida Machado
BACKGROUND: Prenatal tests are important for prevention of vertical transmission of various infectious agents. The objective of this study was to describe the prevalence of human immunodeficiency virus (HIV), human T-lymphotropic virus (HTLV), hepatitis B virus (HBV), cytomegalovirus (CMV), rubella virus and vaccination coverage against HBV in pregnant adolescents who received care in the city of Belém, Pará, Brazil. METHODS: A cross-sectional study was performed with 324 pregnant adolescents from 2009 to 2010...
May 16, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29768731/cochlear-implant-performance-in-children-deafened-by-congenital-cytomegalovirus-a-systematic-review
#4
V J C Kraaijenga, F Van Houwelingen, S F Van der Horst, J Visscher, J M L Huisman, E J Hollman, I Stegeman, A L Smit
BACKGROUND: Congenital cytomegalovirus (cCMV) infection is a major cause of sensorineural hearing loss in children. OBJECTIVE OF REVIEW: The objective of this systematic review was to compare performance in pediatric cochlear implant users with SNHL caused by cCMV compared to non-cCMV implantees. TYPE OF REVIEW: Systematic review. SEARCH STRATEGY: Pubmed, EMBASE and the Cochrane databases were searched from inception up to May 15th 2017 for children, cochlear implant, performance and their synonyms...
May 16, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29768545/hcmv-ul97-phosphotransferase-gene-mutations-may-be-associated-with-antiviral-resistance-in-immunocompromised-patients-in-bel%C3%A3-m-pa-northern-brazil
#5
Dorotéa de Fátima Lobato da Silva, Jedson Ferreira Cardoso, Sandro Patroca da Silva, Leda Mani França Arruda, Renato Lopes Fernandes de Medeiros, Marluce Matos Moraes, Rita Catarina Medeiros Sousa
INTRODUCTION: Human cytomegalovirus is one of the causes of opportunist infections in immunocompromised patients, and is triggered by factors such as state of viral latency, weakened immune responses, and development of antiviral resistance to ganciclovir, the only drug offered by the public health system in Brazil to treat the infection. The goal of this study was to identify mutations that may be associated with antiviral resistance in immunocompromised patients. METHODS: Molecular analysis was performed in 82 blood samples and subjected to genomic DNA extraction by a silica-based method...
March 2018: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29768502/interferon-lambda-is-required-for-interferon-gamma-expressing-nk-cell-responses-but-does-not-afford-antiviral-protection-during-acute-and-persistent-murine-cytomegalovirus-infection
#6
Silvia Gimeno Brias, Morgan Marsden, Jessica Forbester, Mathew Clement, Cordelia Brandt, Katherine Harcourt, Leanne Kane, Lucy Chapman, Simon Clare, Ian R Humphreys
Interferon lambda (IFNλ) is a group of cytokines that belong to the IL-10 family. They exhibit antiviral activities against certain viruses during infection of the liver and mucosal tissues. Here we report that IFNλ restricts in vitro replication of the β-herpesvirus murine cytomegalovirus (mCMV). However, IFNλR1-deficient (Ifnλr1-/-) mice were not preferentially susceptible to mCMV infection in vivo during acute infection after systemic or mucosal challenge, or during virus persistence in the mucosa. Instead, our studies revealed that IFNλ influences NK cell responses during mCMV infection...
2018: PloS One
https://www.readbyqxmd.com/read/29768249/detection-of-cytomegalovirus-in-saliva-from-infants-undergoing-sepsis-evaluation-in-the-neonatal-intensive-care-unit-the-virion-c-study
#7
Andrea Ronchi, Christopher P Ouellette, Asuncion Mejías, Douglas Salamon, Amy Leber, Lorenza Pugni, Fabio Mosca, Pablo J Sánchez
OBJECTIVE: To determine the frequency of detection of cytomegalovirus (CMV) among infants evaluated for late-onset sepsis in the neonatal intensive care unit (NICU). STUDY DESIGN: This study was a prospective cohort study. RESULTS: During the 13-month study, 84 infants underwent 116 sepsis evaluations, and CMV DNA was detected in saliva in three (4%) infants (median: gestational age 28 weeks, birth weight 950 g), representing 5% (n=6) of all sepsis evaluations...
May 16, 2018: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/29767504/motion-based-immunological-detection-of-zika-virus-using-pt-nanomotors-and-a-cellphone
#8
Mohamed Shehata Draz, Nivethitha Kota Lakshminaraasimulu, Sanchana Krishnakumar, Dheerendranath Battalapalli, Anish Vasan, Manoj Kumar Kanakasabapathy, Aparna Sreeram, Shantanu Kallakuri, Prudhvi Thirumalaraju, Yudong Li, Stephane Hua, Xu G Yu, Daniel R Kuritzkes, Hadi Shafiee
Zika virus (ZIKV) infection is an emerging pandemic threat to humans that can be fatal in newborns. Advances in digital health systems and nanoparticles can facilitate the development of sensitive and portable detection technologies for timely management of emerging viral infections. Here we report a nanomotor-based bead-motion cellphone (NBC) system for the immunological detection of ZIKV. The presence of virus in a testing sample results in the accumulation of platinum (Pt)-nanomotors on the surface of beads, causing their motion in H2 O2 solution...
May 16, 2018: ACS Nano
https://www.readbyqxmd.com/read/29764228/anti-infective-chemoprophylaxis-after-solid-organ-transplantation
#9
Paul J Deziel, Raymund Razonable
Solid organ transplant recipients are at high risk of opportunistic infections due to bacterial, viral, fungal and parasitic pathogens. Anti-infective prophylaxis is a time-tested proven strategy for the prevention of these infections after solid organ transplantation. Areas covered: The current recommendations for the prevention of surgical site infections, herpes simplex, cytomegalovirus, invasive fungal infections, and selected parasitic diseases are highlighted. Recent peer-reviewed publications on the prevention of infection after solid organ transplantation were reviewed and their significance was discussed in the context of the current recommendations for preventing infectious complications...
May 15, 2018: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/29763626/profiling-of-small-rnas-derived-from-cucumber-mosaic-virus-in-infected-nicotiana-benthamiana-plants-by-deep-sequencing
#10
Yanhong Qiu, Yuping Wu, Yongjiang Zhang, Wenjie Xu, Chenguang Wang, Shuifang Zhu
In plants, RNA silencing is a conserved mechanism underlying antiviral immunity. To investigate antiviral responses in Nicotiana benthamiana, we analyzed the profiles of the virus-derived small RNAs (vsRNAs) in wild-type N. benthamiana and NbRDR6 mutant plants infected with the cucumber mosaic virus (CMV) 2b-deficient mutant. We observed that NbRDR6 regulates RNA silencing by producing vsRNAs that trigger an effective antiviral response, while NbRDR1 may nonredundantly and synergistically function with NbRDR6 to mediate immune responses...
May 12, 2018: Virus Research
https://www.readbyqxmd.com/read/29762251/prospective-assessment-of-adenovirus-infection-in-pediatric-kidney-transplant-recipients
#11
Rachel M Engen, Meei-Li Huang, Giulia E Park, Jodi M Smith, Ajit P Limaye
BACKGROUND: Adenovirus infection is associated with graft dysfunction and graft loss in pediatric cardiac, lung, and liver transplants in prior retrospective studies, but data in pediatric kidney transplant recipients is limited. METHODS: We conducted a prospective single-center cohort study of 75 consecutive pediatric kidney transplant recipients who underwent monthly screening for adenovirus viremia and symptom assessment for 2 years posttransplant. RESULTS: Adenovirus viremia was detected in 11 (14...
May 2, 2018: Transplantation
https://www.readbyqxmd.com/read/29761395/viral-replication-assay-in-bone-marrow-derived-macrophages
#12
Linda Roback, Lisa P Daley-Bauer
The selection of macrophages as a cell type for investigating virus-host interactions is based on cellular tropism of the virus during infection as well as contribution of these cells to pathogenesis in the host. In response to mouse cytomegalovirus (MCMV) infection, bone marrow-resident monocytes that mobilize to infected tissues to differentiate into macrophages and dendritic cells are hijacked in order to facilitate viral persistence. These cells contribute significantly to MCMV biology and, thus, are actively recruited by the virus-encoded chemokine...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29758495/a-rapid-magnetic-particle-based-enzyme-immunoassay-for-human-cytomegalovirus-glycoprotein-b-quantification
#13
F Pires, M Julia Arcos-Martinez, A Cristina Dias-Cabral, Juan C Vidal, Juan R Castillo
Human cytomegalovirus (HCMV) is a herpes virus that can cause severe infections. Still, the available methods for its diagnostic have the main disadvantage of requiring long time to be performed. In this work, a simple magnetic particle-based enzyme immunoassay (mpEIA) for the quantification of glycoprotein B of Human cytomegalovirus (gB-HCMV) in urine samples is proposed. The immunosensor scheme is based on the analyte protein gB-HCMV sandwiched between a primary monoclonal antibody, (MBs-PrG-mAb1), and a secondary anti-gB-HCMV antibody labelled with Horseradish peroxidase (Ab2-HRP) to allow spectrophotometric detection...
April 17, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29757021/advagraf%C3%A2-with-or-without-an-induction-therapy-for-de-novo-kidney-transplant-recipients
#14
Johan Noble, Thomas Jouve, Lionel Rostaing, Paolo Malvezzi
Cornerstone immunosuppressive therapy currently relies on immediate-release tacrolimus, a calcineurin inhibitor (CNI) that is potentially nephrotoxic and is more diabetogenic than cyclosporine A. Two new formulations of tacrolimus have been launched: an extended-release formulation (Advagraf®/Astagraf XL®, Astellas company) and a long-lasting formulation (Envarsus®, Veloxis company). Area covered: Herein, we assess the efficacy of an extended-release formulation of tacrolimus (Advagraf®/Astagraf XL®) used in conjunction with or without an induction therapy (i...
May 14, 2018: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/29755802/cytomegalovirus-colitis-masquerading-as-apple-core-lesion-after-systemic-chemotherapy-in-a-patient-with-relapsed-acute-myeloid-leukemia
#15
Jong An, Jason Brownell, Darrell Barker, Theresa Stockinger, Robert Brady, Katherine Cebe, Russell Baur
We report the case of a 71-year-old male with relapsed acute myeloid leukemia who developed cytomegalovirus (CMV) colitis presenting as an apple-core lesion during induction chemotherapy. CMV infection occurs rarely during induction chemotherapy for acute myeloid leukemia. CMV infection is usually observed in patients with acquired immune deficiency syndrome (AIDS) and in those on immunosuppressive agents following bone marrow transplant. Although rare, CMV colitis should be considered in patients who are critically ill after systemic chemotherapy as it can cause significant morbidity and mortality...
2018: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/29755533/new-onset-colitis-in-an-adult-patient-with-chronic-granulomatous-disease-treated-with-hematopoietic-stem-cell-transplantation-a-diagnostic-dilemma
#16
Kara Robertson, Stephen Couban, Desmond Leddin, Imran Ahmad, Lori Connors
Background: Chronic granulomatous disease (CGD) is a rare primary immunodeficiency characterized by recurrent life-threatening bacterial and fungal infections, granuloma formation and intestinal disease. This disease is caused by defects in NADPH oxidase, which result in the inability of phagocytes (neutrophils, monocytes and macrophages) to destroy certain microbes. The only established curative therapy for CGD is hematopoietic stem cell transplantation. Case presentation: A 23-year-old Caucasian male with X-linked chronic granulomatous disease underwent a reduced-intensity conditioning, matched unrelated donor peripheral blood stem cell transplant, after which he was started on tacrolimus and mycophenolate for graft-versus-host disease prophylaxis...
2018: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/29754764/monitoring-of-early-humoral-immunity-to-identify-lung-recipients-at-risk-for-development-of-serious-infections-a-multicenter-prospective-study
#17
Elizabeth Sarmiento, Jose Cifrian, Leticia Calahorra, Carles Bravo, Sonia Lopez, Rosalia Laporta, Piedad Ussetti, Amparo Sole, Carmen Morales, Alicia de Pablos, Maria Jaramillo, Ikram Ezzahouri, Sandra García, Joaquin Navarro, Marcos Lopez-Hoyos, Javier Carbone
BACKGROUND: Infection is still a leading cause of death during the first year after lung transplantation. We performed a multicenter study among teaching hospitals to assess monitoring of early humoral immunity as a means of identifying lung recipients at risk of serious infections. METHODS: We prospectively analyzed 82 adult lung recipients at 5 centers in Spain. Data were collected before transplantation and at 7 and 30 days after transplantation. Biomarkers included IgG, IgM, IgA, complement factors C3 and C4, titers of antibodies to pneumococcal polysaccharide antigens (IgG, IgA, IgM) and antibodies to cytomegalovirus (IgG), and serum B-cell activating factor (BAFF) levels...
April 6, 2018: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29753934/recovery-of-cytomegalovirus-dna-from-newborn-saliva-samples-by-different-methods
#18
Oran Goshen, David M Goldfarb, Laura Book, Peter Tilley, Soren Gantt
BACKGROUND: Polymerase chain reaction (PCR) testing of saliva swabs has been shown to be an attractive method to screen for congenital cytomegalovirus (CMV) infection. However, few data are available regarding the impact of pre-analytic methods on CMV DNA recovery from saliva samples under various conditions. OBJECTIVES: The purpose of this study was to evaluate the impact of various transport media and transport conditions on the recovery of CMV DNA from spiked and clinical saliva samples from newborns using PCR testing...
May 5, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29753162/steroid-s-deleterious-effect-on-cmv-infection-rate-post-allo-sct-depends-on-pre-transplant-cmv-serostatus-of-donors-and-recipients
#19
María Suárez-Lledó, Núria Martínez-Cibrián, Gonzalo Gutiérrez-García, Veselka Dimova-Svetoslavova, Ma Angeles Marcos, Beatriz Martín-Antonio, Alejandra Martínez-Trillos, Neus Villamor, Laura Rosiñol, Carmen Martínez, Francesc Fernández-Avilés, Carolina García-Vidal, Álvaro Urbano-Ispizua, Montserrat Rovira
This study examined the impact of prednisone (PDN) on CMV infection after allogeneic stem cell transplantation (allo-SCT) according to donor (D) and recipient (R) CMV serostatus. Seventy-five patients underwent allo-SCT from June 2010 to July 2012. The risk of CMV infection according to D and R serostatus was defined as follows: high risk (HR) (D-/R+), intermediate risk (IR) (D+/R+ and D+/R-) and low risk (LR) (D-/R-). Forty-five patients (60%) developed CMV infection and forty-six patients (61%) received steroids (PDN ≥ 1 mg/kg/day) to treat acute Graft versus host disease (GvHD)...
May 9, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29752413/everolimus-with-reduced-calcineurin-inhibitor-exposure-in-renal-transplantation
#20
Julio Pascual, Stefan P Berger, Oliver Witzke, Helio Tedesco, Shamkant Mulgaonkar, Yasir Qazi, Steven Chadban, Federico Oppenheimer, Claudia Sommerer, Rainer Oberbauer, Yoshihiko Watarai, Christophe Legendre, Franco Citterio, Mitchell Henry, Titte R Srinivas, Wen-Lin Luo, AnaMaria Marti, Peter Bernhardt, Flavio Vincenti
Background Everolimus permits reduced calcineurin inhibitor (CNI) exposure, but the efficacy and safety outcomes of this treatment after kidney transplant require confirmation. Methods In a multicenter noninferiority trial, we randomized 2037 de novo kidney transplant recipients to receive, in combination with induction therapy and corticosteroids, everolimus with reduced-exposure CNI (everolimus arm) or mycophenolic acid (MPA) with standard-exposure CNI (MPA arm). The primary end point was treated biopsy-proven acute rejection or eGFR<50 ml/min per 1...
May 11, 2018: Journal of the American Society of Nephrology: JASN
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