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Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology

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https://www.readbyqxmd.com/read/28414949/ebv-encoded-micrornas-profile-evaluation-in-pediatric-liver-transplant-recipients
#1
Massimiliano Bergallo, Stefano Gambarino, Michele Pinon, Veronica Barat, Paola Montanari, Valentina Daprà, Ilaria Galliano, Pier Luigi Calvo
BACKGROUND: Epstein-Barr virus (EBV) infects 90% of the world population, commonly causing self-limiting infectious mononucleosis or rarely inciting a range of malignancies. EBV microRNAs (miRNAs) were discovered by sequencing libraries of small RNAs generated from several EBV-positive cell lines. Little is known about their roles, but their high stability and easy quantification make these molecules potential biomarkers. OBJECTIVES: In this study a stem-loop MGB real-time RT-PCR has been used to detect and quantify miR-BART2-5p, miR-BART15 and miR-BART22 EBV miRNAs levels...
April 8, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28412596/is-lenticulostriated-vasculopathy-an-unfavorable-prognostic-finding-in-infants-with-congenital-cytomegalovirus-infection
#2
Antonietta Giannattasio, Pasquale Di Costanzo, Paola Milite, Daniela De Martino, Eleonora Capone, Antonia Romano, Carmela Bravaccio, Letizia Capasso, Francesco Raimondi
BACKGROUND: Lenticulostriated vasculopathy (LSV) detected in head ultrasound (HUS) has been related to neurological and hearing sequelae in infants with congenital cytomegalovirus (cCMV) infection. OBJECTIVE: To assess the role of LSV in predicting neurodevelopmental and hearing outcomes in infants with cCMV infection. STUDY DESIGN: We enrolled consecutive infants who were affected by cCMV infection and underwent HUS within the first month of life...
April 6, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28411480/hemorrhagic-fever-with-renal-syndrome-in-albania-focus-on-predictors-of-acute-kidney-injury-in-hfrs
#3
Elvana Rista, Arben Pilaca, Ilir Akshija, Ariol Rama, Endri Harja, Edmond Puca, Silvia Bino, Vilma Cadri, Majlinda Kota, Thereska Nestor, Harxhi Arjan
BACKGROUND: Hemorrhagic fever with renal syndrome (HFRS) is a rodent borne zoonosis, caused by the members of the family Bunyaviridae, genus Hantavirus. The main clinical features of the infection by this virus family are fever, thrombocytopenia and acute kidney injury. OBJECTIVE: The aim of our study was to identify, for the first time, characteristic features of HFRS in the Albanian population. STUDY DESIGN: The study comprised 33 consecutive patients admitted with suspected HFRS from April 2011-April 2016 at one center...
March 31, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28380393/the-new-aptima-hcv-quant-dx-real-time-tma-assay-accurately-quantifies-hepatitis-c-virus-genotype-1-6-rna
#4
Stéphane Chevaliez, Fabienne Dubernet, Claude Dauvillier, Christophe Hézode, Jean-Michel Pawlotsky
BACKGROUND: Sensitive and accurate hepatitis C virus (HCV) RNA detection and quantification is essential for the management of chronic hepatitis C therapy. Currently available platforms and assays are usually batched and require at least 5hours of work to complete the analyses. OBJECTIVES AND STUDY DESIGN: The aim of this study was to evaluate the ability of the newly developed Aptima HCV Quant Dx assay that eliminates the need for batch processing and automates all aspects of nucleic acid testing in a single step, to accurately detect and quantify HCV RNA in a large series of patients infected with different HCV genotypes...
March 29, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28372891/performance-evaluation-of-the-fda-approved-determine%C3%A2-hiv-1-2-ag-ab-combo-assay-using-plasma-and-whole-blood-specimens
#5
Silvina Masciotra, Wei Luo, Emily Westheimer, Stephanie E Cohen, Cynthia L Gay, Laura Hall, Yi Pan, Philip J Peters, S Michele Owen
BACKGROUND: The Determine™ HIV-1/2 Ag/Ab Combo (DC) rapid test can identify HIV-1 infection earlier than rapid antibody-only tests in plasma specimens. OBJECTIVES: We compared the performance of DC with a laboratory-based antigen/antibody (Ag/Ab) combo assay in plasma and evaluated antigen reactivity in whole blood specimens. STUDY DESIGN: We tested by DC 508 plasma specimens collected in a prospective study and 107 sequential plasma and simulated whole blood specimens from 20 seroconversion panels...
March 24, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28395180/total-cellular-hiv-1-dna-decreases-after-switching-to-raltegravir-based-regimens-in-patients-with-suppressed-hiv-1-rna
#6
Barbara Rossetti, Genny Meini, Claudia Bianco, Silvia Lamonica, Annalisa Mondi, Simone Belmonti, Iuri Fanti, Nicoletta Ciccarelli, Simona Di Giambenedetto, Maurizio Zazzi, Andrea De Luca
BACKGROUND: The integrase inhibitor raltegravir has been used to intensify antiretroviral therapy in patients with undetectable plasma HIV-1RNA, resulting in variable perturbation of HIV-1 nucleic acids levels in peripheral blood. OBJECTIVES: We aimed at monitoring residual plasma HIV-1RNA and total cellular HIV-1DNA in virologically suppressed patients switching to raltegravir-based regimens. STUDY DESIGN: Fifty-eight subjects on protease inhibitor (PI) or nonnucleoside reverse transcriptase inhibitor (NNRTI)-based regimens, with plasma HIV-1RNA levels <40 copies/ml for ≥6 months and CD4 counts >200cells/μl for ≥12 months were enrolled...
March 23, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28372890/performance-evaluation-of-the-point-of-care-insti%C3%A2-hiv-1-2-antibody-test-in-early-and-established-hiv-infections
#7
Sarah Adams, Wei Luo, Laura Wesolowski, Stephanie E Cohen, Philip J Peters, S Michele Owen, Silvina Masciotra
BACKGROUND: The flow-through INSTI™ HIV-1/HIV-2 Rapid Antibody (INSTI) test is a 60s FDA-approved test for HIV-1 and HIV-2 antibody testing using whole blood and plasma. OBJECTIVE: We evaluated the performance of INSTI using plasma and simulated whole blood specimens. STUDY DESIGN: INSTI's performance in plasma specimens from commercial seroconversion panels was assessed by estimating the relative sensitivity using a 50% cumulative frequency analysis and by comparing its performance with other FDA-approved rapid tests (RTs)...
March 23, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28410496/acute-kidney-injury-in-symptomatic-primary-epstein-barr-virus-infectious-mononucleosis-systematic-review
#8
Milena Moretti, Sebastiano A G Lava, Lorenzo Zgraggen, Giacomo D Simonetti, Lisa Kottanattu, Mario G Bianchetti, Gregorio P Milani
BACKGROUND AND OBJECTIVES: Textbooks and reviews do not mention the association of symptomatic primary Epstein-Barr virus infectious mononucleosis with acute kidney injury in subjects without immunodeficiency or autoimmunity. STUDY DESIGN: Stimulated by our experience with two cases, we performed a review of the literature. RESULTS: The literature documents 38 cases (26 male and 12 female individuals ranging in age from 0.3 to 51, median 18 years) of symptomatic primary Epstein-Barr virus infectious mononucleosis complicated by acute kidney injury: 27 acute interstitial nephritides, 1 jaundice-associated nephropathy, 7 myositides and 3 hemolytic uremic syndromes...
March 21, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28359845/detection-of-cytomegalovirus-drug-resistance-mutations-in-solid-organ-transplant-recipients-with-suspected-resistance
#9
Rubén López-Aladid, Alba Guiu, Gemma Sanclemente, Francisco López-Medrano, Frederic Cofán, M Mar Mosquera, Julián Torre-Cisneros, Elisa Vidal, Asunción Moreno, Jose Maria Aguado, Elisa Cordero, Cecilia Martin-Gandul, Pilar Pérez-Romero, Jordi Carratalá, Nuria Sabé, Jordi Niubó, Carlos Cervera, Anna Cervilla, Marta Bodro, Patricia Muñoz, Carmen Fariñas, M Gemma Codina, Maitane Aranzamendi, Miguel Montejo, Oscar Len, M Angeles Marcos
BACKGROUND: Current guidelines recommend that treatment of resistant cytomegalovirus (CMV) in solid organ transplant (SOT) recipients must be based on genotypic analysis. However, this recommendation is not systematically followed. OBJECTIVES: To assess the presence of mutations associated with CMV resistance in SOT recipients with suspected resistance, their associated risk factors and the clinical impact of resistance. STUDY DESIGN: Using Sanger sequencing we prospectively assessed the presence of resistance mutations in a nation-wide prospective study between September 2013-August 2015...
March 21, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28359844/sequencing-of-the-hepatitis-d-virus-rna-who-international-standard
#10
M T Pyne, M A Mallory, H B Xie, Y Mei, R Schlaberg, D R Hillyard
BACKGROUND: Well-characterized, stable calibration materials are essential to standardize quantitative viral reporting. The preferred calibration materials are the WHO International Standards and secondary standards derived from them. In 2013, the 1st WHO International Standard for Hepatitis D Virus (HDV) RNA became available. During the course of assay development in our laboratory, differences between the published sequence (GenBank ID: HQ005371) and sequence we generated from the WHO HDV Standard were identified...
March 21, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28351688/performance-of-serological-and-molecular-tests-within-acute-hiv-infection
#11
Katrien Fransen, Irith de Baetselier, Elizabeth Rammutla, Khatija Ahmed, Frederick Owino, Walter Agingu, Gustav Venter, Jen Deese, Lut Van Damme, Tania Crucitti
BACKGROUND: Early diagnosis of acute HIV infection can be challenging and is critical in regards to early therapeutic decision making. OBJECTIVES: To evaluate the performance of different HIV tests in detecting early infections. STUDY DESIGN: A total of 83 leftover specimens of 61 study participants who seroconverted were used in this sub-study. 35 HIV RNA positive but still seronegative specimens (acute infections) were used for analysis of the sensitivity of the different assays in detecting early infections and 42 HIV RNA and antibody negative specimens were used for specificity analysis...
March 21, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28366544/evaluation-of-dried-blood-spot-protocols-with-the-bio-rad-gs-hiv-combo-ag-ab-eia-and-geenius%C3%A2-hiv-1-2-supplemental-assay
#12
Wei Luo, Geoff Davis, LiXia Li, M Kathleen Shriver, Joanne Mei, Linda M Styer, Monica M Parker, Amanda Smith, Gabriela Paz-Bailey, Steve Ethridge, Laura Wesolowski, S Michele Owen, Silvina Masciotra
OBJECTIVE: FDA-approved antigen/antibody combo and HIV-1/2 differentiation supplemental tests do not have claims for dried blood spot (DBS) use. We compared two DBS-modified protocols, the Bio-Rad GS HIV Combo Ag/Ab (BRC) EIA and Geenius™ HIV-1/2 (Geenius) Supplemental Assay, to plasma protocols and evaluated them in the CDC/APHL HIV diagnostic algorithm. METHODS: BRC-DBS p24 analytical sensitivity was calculated from serial dilutions of p24. DBS specimens included 11 HIV-1 seroconverters, 151 HIV-1-positive individuals, including 20 on antiretroviral therapy, 31 HIV-2-positive and one HIV-1/HIV-2-positive individuals...
March 20, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28359977/report-of-novel-h105r-d29n-v27a-mutations-in-the-methyltransferase-region-of-the-hev-genome-in-patients-with-acute-liver-failure
#13
Jayanta Borkakoti, Giasuddin Ahmed, Arvind Rai, Premashis Kar
BACKGROUND: The Hepatitis E virus (HEV) has been responsible for major outbreaks in the developing countries affecting millions of people and acute sporadic hepatitis worldwide. The HEV methyltransferase is important for capping the 5'-end of the viral pregenomic RNA which is critical for viral infection. OBJECTIVES: We aimed to assess the substitutional profile in the HEV methyltransferase region in patients with acute liver failure (ALF) and acute viral hepatitis (AVH) from North Indian population and associate the substitutions with the poor outcome of the disease...
March 20, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28351689/detection-of-new-hiv-infections-in-a-multicentre-hiv-antiretroviral-pre-exposure-prophylaxis-trial
#14
Katrien Fransen, Irith de Baetselier, Elizabeth Rammutla, Khatija Ahmed, Frederick Owino, Walter Agingu, Gustav Venter, Jen Deese, Lut Van Damme, Tania Crucitti
BACKGROUND: Monthly specimens collected from FEM-PrEP-a Phase III trial [1] were investigated for the detection of acute HIV (AHI) infection. OBJECTIVES: To evaluate the efficiency of the study-specific HIV algorithm in detecting AHI, and the performance of each of the serological and molecular tests used in diagnosing new infections, and their contribution to narrowing the window period. STUDY DESIGN: A total of 83 pre-seroconversion specimens from 61 seroconverters from the FEM-PrEP trial were further analyzed in a sub-study...
March 20, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28355579/stability-of-bk-polyomavirus-igg-seroreactivity-and-its-correlation-with-preceding-viremia
#15
Herman F Wunderink, Els van der Meijden, Caroline S van der Blij-de Brouwer, Hans L Zaaijer, Aloys C M Kroes, Erik W van Zwet, Joris I Rotmans, Mariet C W Feltkamp
BACKGROUND: Recently we showed that the level of BK polyomavirus (BKPyV) IgG seroreactivity in kidney donors predicted viremia and BKPyV-associated nephropathy in kidney transplant recipients (KTRs). This observation could be explained by assuming a direct association between BKPyV seroreactivity and the amount of persistent infectious virus in the renal allograft. OBJECTIVES: Since the renal BKPyV reservoir is probably sowed by viremia during primary BKPyV infection, we systematically analysed the dynamics of BKPyV IgG seroreactivity in relation to preceding BKPyV viremia in KTRs and healthy individuals...
March 19, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28342315/inclusions-or-bystanders-cmv-pcr-sensitivity-and-specificity-in-tissue-samples
#16
LETTER
John Burston, Sebastian van Hal, Sally Dubedat, Andie Lee
No abstract text is available yet for this article.
March 18, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28342316/comparison-of-cytomegalovirus-cmv-specific-neutralization-capacity-of-hyperimmunoglobulin-hig-versus-standard-intravenous-immunoglobulin-ivig-preparations-impact-of-cmv-igg-normalization
#17
Matthias Stefan Schampera, Katrin Schweinzer, Harald Abele, Karl Oliver Kagan, Reinhild Klein, Ingo Rettig, Gerhard Jahn, Klaus Hamprecht
BACKGROUND: Based on a non-randomized study of Nigro et al. (2005) the intravenous administration of hyperimmunoglobulins (HIGs) is applied frequently to women with primary CMV-infection as "off-label use" in Germany. OBJECTIVES: In order to describe their CMV-specific neutralization-capacity in vitro, we analyzed the HIG preparations Cytotect(®), and Cytogam(®) as well as the standard intravenous immunoglobulins (IVIG) Octagam(®), Gamunex(®), Kiovig(®). STUDY DESIGN: We performed short-term cell-free CMV neutralization assays (CFNT) and long-term cell-adapted neutralization-plaque-reduction assays (PRANT)...
March 16, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28334685/serum-ifn-%C3%AE-induced-protein-10-ip-10-as-a-biomarker-for-severity-of-acute-respiratory-infection-in-healthy-adults
#18
Mary S Hayney, Kelsey M Henriquez, Jodi H Barnet, Tola Ewers, Heather M Champion, Sean Flannery, Bruce Barrett
BACKGROUND: The inflammatory chemokine, interferon-gamma inducible protein of 10kDa (IP-10), is a biomarker associated with several conditions. OBJECTIVES: This study investigated serum concentrations of IP-10 in healthy individuals who developed acute respiratory infection (ARI). The hypothesis is that serum IP-10 concentrations correlate with ARI severity and detection of viral pathogens. STUDY DESIGN: Data come from a randomized controlled trial measuring the effects of mindfulness meditation or exercise on ARI (Clinical Trials ID: NCT01654289)...
March 16, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28319847/a-european-multicentre-study-on-the-comparison-of-hcv-viral-loads-between-veris-hcv-assay-and-cobas-%C3%A2-taqman-%C3%A2-hcv-test-and-realtime-hcv-assay
#19
Patrick Braun, Monica Drago, Diana Fanti, Hervé Fleury, Jörg Hofmann, Jacques Izopet, Sebastian Kühn, Alessandra Lombardi, Valeria Micheli, Karine Sauné, Pascale Trimoulet, Duncan Whittaker, Alain Artus, Daniel Rhodes
BACKGROUND: Beckman Coulter has developed the VERIS HCV Assay for use on the new fully automated DxN VERIS Molecular Diagnostic System(¥) for HCV viral load monitoring. OBJECTIVES: Evaluate the clinical performance of the new quantitative VERIS HCV Assay. STUDY DESIGN: Comparison was performed on 279 plasma specimens from HCV infected patients tested with the VERIS HCV Assay and COBAS(®) Ampliprep/COBAS(®) Taqman(®) HCV Test and 369 specimens tested with the VERIS HCV Assay and RealTime HCV Assay...
March 9, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28319846/presence-of-cytomegalovirus-in-urine-and-blood-of-pregnant-women-with-primary-infection-might-be-associated-with-fetal-infection
#20
Marie-Luce Delforge, Elena Costa, Françoise Brancart, Deborah Goldman, Isabel Montesinos, Siham Zaytouni, Arnaud Marchant, Catherine Donner
BACKGROUND: Cytomegalovirus (CMV) congenital infection can result from primary infection, reinfection or reactivation among pregnant women. The risk of vertical transmission is much higher in case of primary infection, and the transmission rate increases with gestational age. However there are still many questions about maternal markers that can predict whether the virus will be transmitted to the fetus. OBJECTIVES: To investigate the relationship between the presence and the quantity of CMV in urine and blood of women presenting a primary CMV infection during pregnancy and the presence of congenital infection in their offspring...
March 7, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
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