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https://www.readbyqxmd.com/read/28806733/the-interaction-between-endogenous-30s-ribosomal-subunit-protein-s11-and-cucumber-mosaic-virus-ls2b-protein-affects-viral-replication-infection-and-gene-silencing-suppressor-activity
#1
Ruilin Wang, Zhiyou Du, Zhenqing Bai, Zongsuo Liang
Cucumber mosaic virus (CMV) is a model virus for plant-virus protein interaction and mechanism research because of its wide distribution, high-level of replication and simple genome structure. The 2b protein is a multifunctional protein encoded by CMV that suppresses RNA silencing-based antiviral defense and contributes to CMV virulence in host plants. In this report, 12 host proteins were identified as CMV LS2b binding partners using the yeast two-hybrid screen system from the Arabidopsis thaliana cDNA library...
2017: PloS One
https://www.readbyqxmd.com/read/28806406/terminal-differentiation-of-t-cells-is-strongly-associated-with-cmv-infection-and-increased-in-hiv-positive-individuals-on-art-and-lifestyle-matched-controls
#2
Thijs Booiman, Ferdinand W Wit, Arginell F Girigorie, Irma Maurer, Davide De Francesco, Caroline A Sabin, Agnes M Harskamp, Maria Prins, Claudio Franceschi, Steven G Deeks, Alan Winston, Peter Reiss, Neeltje A Kootstra
HIV-1-positive individuals on successful antiretroviral therapy (ART) are reported to have higher rates of age-associated non-communicable comorbidities (AANCCs). HIV-associated immune dysfunction has been suggested to contribute to increased AANCC risk. Here we performed a cross-sectional immune phenotype analysis of T cells in ART-treated HIV-1-positive individuals with undetectable vireamia (HIV-positives) and HIV-1-negative individuals (HIV-negatives) over 45 years of age. In addition, two control groups were studied: HIV negative adults selected based on lifestyle and demographic factors (Co-morBidity in Relation to AIDS, or COBRA) and unselected age-matched donors from a blood bank...
2017: PloS One
https://www.readbyqxmd.com/read/28805792/immune-reconstitution-in-patients-with-acquired-severe-aplastic-anemia-after-haploidentical-stem-cell-transplantation
#3
X-Y Pei, X-Y Zhao, L-P Xu, Y Wang, X-H Zhang, Y-J Chang, X-J Huang
Immune recovery (IR) after haploidentical stem cell transplantation (haplo-SCT) in severe aplastic anemia (SAA) patients remains relatively unknown. In this study, we examined immune cell subset counts and immunoglobulins in 81 SAA patients from day 30 to day 365 after haplo-SCT. Simultaneously, we determined which factors influence IR and analyzed the effects of immune cell subsets on transplant outcomes. We found that: (i) The reconstitution of different immune cell subsets occurred at different rates after haplo-SCT...
August 14, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28803335/intraoperative-ventilation-during-thoracoscopic-repair-of-neonatal-congenital-diaphragmatic-hernia
#4
Tadaharu Okazaki, Manabu Okawada, Junya Ishii, Hiroyuki Koga, Go Miyano, Takashi Doi, Yuki Ogasawara, Geoffrey J Lane, Atsuyuki Yamataka
PURPOSE: To evaluate the optimal ventilation mode during thoracoscopic repair (TR) of neonatal congenital diaphragmatic hernia (CDH), we compared high-frequency oscillatory ventilation (HFOV) with conventional mechanical ventilation (CMV). METHODS: Twenty-three neonatal CDH cases who underwent TR without intraoperative inhalation of nitric oxide at our institution between 2007 and 2016 were reviewed. Patients were initially ventilated with HFOV, which was converted to CMV if the HFOV settings were decreased to FiO2 <0...
August 12, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28803228/utility-of-routine-urine-cmv-pcr-and-total-serum-igm-testing-of-small-for-gestational-age-infants-a-single-center-review
#5
Michael M Espiritu, Sean Bailey, Elena V Wachtel, Pradeep V Mally
BACKGROUND: Due to the extremely low incidence of TORCH (toxoplasmosis, rubella, CMV, herpes simplex virus) infections, diagnostic testing of all small for gestational age (SGA) infants aimed at TORCH etiologies may incur unnecessary tests and cost. OBJECTIVE: To determine the frequency of urine CMV PCR and total IgM testing among infants with birth weight <10% and the rate of test positivity. To evaluate the frequency of alternative etiologies of SGA in tested infants...
August 14, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28802588/t-cell-costimulation-blockade-promotes-transplantation-tolerance-in-combination-with-sirolimus-and-post-transplantation-cyclophosphamide-for-haploidentical-transplantation-in-children-with-severe-aplastic-anemia
#6
Sarita Rani Jaiswal, Prakash Bhakuni, Shamsuz Zaman, Satish Bansal, Priyanka Bharadwaj, Sneh Bhargava, Suparno Chakrabarti
We conducted a pilot study employing extended T cell costimulation blockade (COSBL) with Abatacept along with sirolimus and post-transplantation cyclophosphamide (PTCy) in 10 patients (median age 12) with severe aplastic anemia (SAA). Nine patients engrafted in the COSBL group, compared to all 10 patients (median 14 vs 13days) treated on PTCy protocols without abatacept (CONTROL group). The incidence of acute graft-versus-host disease (GVHD) was 10.5% in the COSBL group compared to 50% in the CONTROL group (p=0...
August 9, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28801328/cytomegalovirus-related-transverse-myelitis-in-an-immunocompetent-host-a-subacute-onset-of-an-immune-mediated-disease
#7
Xavier Merchan-Del Hierro, Alexandra Halalau
We report a case of transverse myelitis in an immunocompetent host with an atypical long onset of symptoms. A 56-year-old man was admitted to the hospital reporting 5 months of progressive ascending lower extremity weakness and numbness, inability to walk, bowel incontinence,urinary retention and several episodes of nausea and vomiting. MRI showed moderate spinal swelling and multiple hyperintense signal changes on cervical levels C2-C5 and thoracic levels T1-T3. Cerebrospinal fluid (CSF) showed pleocytosis and was positive for anti-cytomegalovirus (CMV) IgG intrathecal antibodies, but the CSF PCR for CMV was negative...
August 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28801056/clinical-evaluation-of-the-new-roche-platform-of-serological-and-molecular-cytomegalovirus-specific-assays-in-the-diagnosis-and-prognosis-of-congenital-cytomegalovirus-infection
#8
Angela Chiereghin, Claudia Pavia, Liliana Gabrielli, Giulia Piccirilli, Diego Squarzoni, Gabriele Turello, Dino Gibertoni, Giuliana Simonazzi, Maria Grazia Capretti, Marcello Lanari, Tiziana Lazzarotto
Clinical evaluation of the Elecsys(®) CMV IgM, IgG, IgG Avidity and COBAS AmpliPrep/COBAS TaqMan CMV (COBAS CMV) assays (Roche Diagnostics AG) in the diagnosis and prognosis of congenital CMV infection was performed. In this study, 150 preselected clinical samples (50 primary infection sera, 50 amniotic fluid [AF] and 50 newborn urine) were processed using Roche serological/molecular CMV-specific tests. Results were compared with those obtained by routine assays (comparator assays). The Elecsys(®) CMV IgM and IgG assays showed a perfect agreement (100%) with the comparator assays...
August 8, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28800601/sequence-homology-between-hla-bound-cytomegalovirus-and-human-peptides-a-potential-trigger-for-alloreactivity
#9
Charles E Hall, Vishal N Koparde, Maximilian Jameson-Lee, Abdelrhman G Elnasseh, Allison F Scalora, David J Kobulnicky, Myrna G Serrano, Catherine H Roberts, Gregory A Buck, Michael C Neale, Daniel E Nixon, Amir A Toor
Human cytomegalovirus (hCMV) reactivation may often coincide with the development of graft-versus-host-disease (GVHD) in stem cell transplantation (SCT). Seventy seven SCT donor-recipient pairs (DRP) (HLA matched unrelated donor (MUD), n = 50; matched related donor (MRD), n = 27) underwent whole exome sequencing to identify single nucleotide polymorphisms (SNPs) generating alloreactive peptide libraries for each DRP (9-mer peptide-HLA complexes); Human CMV CROSS (Cross-Reactive Open Source Sequence) database was compiled from NCBI; HLA class I binding affinity for each DRPs HLA was calculated by NetMHCpan 2...
2017: PloS One
https://www.readbyqxmd.com/read/28800011/rna-in-situ-hybridization-for-epstein-barr-virus-and-cytomegalovirus-comparison-with-in-situ-hybridization-and-immunohistochemistry
#10
Catherine J Roe, Momin T Siddiqui, Diane Lawson, Cynthia Cohen
The RNAscope utilizes in situ hybridization (RISH) technology to detect single RNA molecules in a variety of tissue samples, including formalin fixed paraffin embedded (FFPE) tissues. Epstein-Barr virus (EBV) and cytomegalovirus (CMV) are found in association with neoplastic tissues and inflammatory lesions, and immunohistochemistry (IHC) or other techniques (ISH) are utilized to identify them. We compared the RNAscope RISH to ISH and IHC in the detection of EBV and CMV respectively to determine RNAscope utility in a clinical setting...
August 9, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28798861/overexpression-of-brg1-alleviates-hepatic-ischemia-reperfusion-induced-acute-lung-injury-through-antioxidative-stress-effects
#11
Mian Ge, Chaojin Chen, Weifeng Yao, Shaoli Zhou, Fei Huang, Jun Cai, Ziqing Hei
AIM: To investigate whether overexpression of Brahma-related gene-1 (Brg1) can alleviate lung injury induced by hepatic ischemia/reperfusion (HIR) and its precise mechanism. METHODS: Cytomegalovirus-transgenic Brg1-overexpressing (CMV-Brg1) mice and wild-type (WT) C57BL/6 mice underwent HIR. Lung histology, oxidative injury markers, and antioxidant enzyme concentrations in the lung were assessed. The protein expression levels of Brg1, nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), and NAD(P)H:quinone oxidoreductase 1 (NQO1) in the lung were analyzed by Western blotting...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28797778/cytomegalovirus-reactivation-is-associated-with-increased-risk-of-late-onset-invasive-fungal-disease-following-allogeneic-hematopoietic-stem-cell-transplantation-a-multi-centre-study-in-the-current-era-of-viral-load-monitoring
#12
Michelle K Yong, Michelle Ananda-Rajah, Paul U Cameron, C Orla Morrissey, Andrew Spencer, David Ritchie, Allen C Cheng, Sharon R Lewin, Monica Slavin
Opportunistic infections such as cytomegalovirus (CMV) reactivation and invasive fungal disease (IFD) cause significant morbidity and mortality to recipients of hematopoietic stem cell transplant (HSCT). We aimed to characterise the risk and relationship of CMV reactivation post-HSCT to IFD in the current era of CMV viral load monitoring using highly sensitive plasma DNA. A multi-centre retrospective cohort study was conducted of consecutive patients undergoing allogeneic HSCT from January 2006 to December 2010 in Melbourne, Australia...
August 7, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28796839/tissue-specific-control-of-latent-cmv-reactivation-by-regulatory-t-cells
#13
Maha Almanan, Jana Raynor, Allyson Sholl, Mei Wang, Claire Chougnet, Rhonda D Cardin, David A Hildeman
Cytomegalovirus (CMV) causes a persistent, lifelong infection. CMV persists in a latent state and undergoes intermittent subclinical viral reactivation that is quelled by ongoing T cell responses. While T cells are critical to maintain control of infection, the immunological factors that promote CMV persistence remain unclear. Here, we investigated the role of regulatory T cells (Treg) in a mouse model of latent CMV infection using Foxp3-diphtheria toxin receptor (Foxp3-DTR) mice. Eight months after infection, MCMV had established latency in the spleen, salivary gland, lung, and pancreas, which was accompanied by an increased frequency of Treg...
August 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28795502/congenital-cmv-international-guidelines-are-needed-to-guide-diagnosis-prevention-and-management
#14
EDITORIAL
William Rawlinson
No abstract text is available yet for this article.
September 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28794965/efficacy-of-lung-volume-optimization-maneuver-monitored-by-optoelectronic-pletismography-in-the-management-of-congenital-diaphragmatic-hernia
#15
G Lista, I Bresesti, F Cavigioli, F Castoldi, E Lupo, A LoMauro, A Aliverti
Newborns affected by congenital diaphragmatic hernia (CDH) need cardio-respiratory stabilization before undergoing surgical repair. Open lung strategy is a well-established approach to optimize lung volume in preterm infants with Respiratory Distress Syndrome (RDS), using both High Frequency Oscillatory Ventilation (HFOV) and Conventional Mechanical Ventilation (CMV). We report a case of left CDH with severe lung hypoplasia, managed applying open lung strategy in HFOV (pre-surgery period) and in Assist-Control with Volume Guarantee (post-surgery period), guided by SpO2 changes, TcPO2 and TcPCO2 monitoring...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28792686/viral-surveillance-using-pcr-during-treatment-of-aml-and-all
#16
Stephanie B Dixon, Adam Lane, Maureen M O'Brien, Karen C Burns, Jennifer L Mangino, Erin H Breese, Michael J Absalon, John P Perentesis, Christine L Phillips
BACKGROUND: While viral surveillance of cytomegalovirus (CMV), Epstein-Barr virus (EBV), and adenovirus using PCR is routine in patients undergoing hematopoetic stem cell transplant and solid organ transplant, the utility in the nontransplant pediatric leukemia population is unknown. Our institution screens patients with acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML) for viral DNAemia by PCR as part of clinical care. PROCEDURE: This retrospective chart review included patients treated for newly diagnosed or relapsed AML or ALL between April 2010 and September 2014...
August 9, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28791493/risk-of-infectious-diseases-among-first-degree-relatives-of-transplant-recipients-who-develop-cmv-infection-is-the-infectious-phenotype-inheritable
#17
C Ekenberg, I P Lodding, N E Wareham, S S Sørensen, H Sengeløv, F Gustafsson, A Rasmussen, M Perch, J D Lundgren, M Helleberg
Transplant recipients are at high risk of cytomegalovirus (CMV) infection. Mechanisms explaining the variation in risk of infections are far from fully elucidated. We hypothesised that host genetics explains part of the variation in risk of infection and examined if relatives of recipients with CMV infection have higher rates of severe infections compared to relatives of recipients without this infectious phenotype. In a register-based study, we included first-degree relatives of transplant recipients and examined the risk of hospitalisation due to overall infection or viral infection and risk of death among relatives of recipients who developed CMV infection within the first year of transplantation compared to relatives of recipients without CMV...
August 8, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28791125/nkg2c-memory-like-nk-cells-contribute-to-the-control-of-hiv-viremia-during-primary-infection-optiprim-anrs-147
#18
Françoise Gondois-Rey, Antoine Chéret, Samuel Granjeaud, Françoise Mallet, Ghislain Bidaut, Camille Lécuroux, Mickaël Ploquin, Michaela Müller-Trutwin, Christine Rouzioux, Véronique Avettand-Fenoël, Alessandro Moretta, Gilles Pialoux, Cécile Goujard, Laurence Meyer, Daniel Olive
Natural-killer (NK) cells are important immune effectors during a viral infection. Latent CMV infection is widely spread and was demonstrated to shape the NK cell repertoire through the NKG2C receptor. An expansion of NKG2C(+) NK cells has been reported during primary HIV infection (PHI), but their role is not known. We previously found a correlation between the maturation state of the NK cell compartment and a lower viral load by studying patients from the ANRS 147 Optiprim trial. We investigated here extensively the NKG2C(+) NK cells at the time of PHI and its evolution after 3 months of early antiretroviral therapy (combination antiretroviral therapy (cART))...
July 2017: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28783452/off-the-shelf-virus-specific-t-cells-to-treat-bk-virus-human-herpesvirus-6-cytomegalovirus-epstein-barr-virus-and-adenovirus-infections-after-allogeneic-hematopoietic-stem-cell-transplantation
#19
Ifigeneia Tzannou, Anastasia Papadopoulou, Swati Naik, Kathryn Leung, Caridad A Martinez, Carlos A Ramos, George Carrum, Ghadir Sasa, Premal Lulla, Ayumi Watanabe, Manik Kuvalekar, Adrian P Gee, Meng-Fen Wu, Hao Liu, Bambi J Grilley, Robert A Krance, Stephen Gottschalk, Malcolm K Brenner, Cliona M Rooney, Helen E Heslop, Ann M Leen, Bilal Omer
Purpose Improvement of cure rates for patients treated with allogeneic hematopoietic stem-cell transplantation (HSCT) will require efforts to decrease treatment-related mortality from severe viral infections. Adoptively transferred virus-specific T cells (VSTs) generated from eligible, third-party donors could provide broad antiviral protection to recipients of HSCT as an immediately available off-the-shelf product. Patient and Methods We generated a bank of VSTs that recognized five common viral pathogens: Epstein-Barr virus (EBV), adenovirus (AdV), cytomegalovirus (CMV), BK virus (BKV), and human herpesvirus 6 (HHV-6)...
August 7, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28783043/nbeal2-is-required-for-neutrophil-and-nk-cell-function-and-pathogen-defense
#20
John M Sowerby, David C Thomas, Simon Clare, Marion Espéli, Jose A Guerrero, Kim Hoenderdos, Katherine Harcourt, Morgan Marsden, Juneid Abdul-Karim, Mathew Clement, Robin Antrobus, Yagnesh Umrania, Philippa R Barton, Shaun M Flint, Jatinder K Juss, Alison M Condliffe, Paul A Lyons, Ian R Humphreys, Edwin R Chilvers, Willem H Ouwehand, Gordon Dougan, Kenneth Gc Smith
Mutations in the human NBEAL2 gene cause gray platelet syndrome (GPS), a bleeding diathesis characterized by a lack of α granules in platelets. The functions of the NBEAL2 protein have not been explored outside platelet biology, but there are reports of increased frequency of infection and abnormal neutrophil morphology in patients with GPS. We therefore investigated the role of NBEAL2 in immunity by analyzing the phenotype of Nbeal2-deficient mice. We found profound abnormalities in the Nbeal2-deficient immune system, particularly in the function of neutrophils and NK cells...
August 7, 2017: Journal of Clinical Investigation
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