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Parvovirus b19

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https://www.readbyqxmd.com/read/28700372/immunohistochemical-demonstration-of-parvovirus-b19-viral-protein-2-in-periflexural-exanthema-in-an-adult-supporting-antibody-dependent-enhancement-as-means-of-endothelial-uptake-of-the-virus
#1
Carlos Santonja, Úrsula Pielasinski, Jorge Polo, Heinz Kutzner, Luis Requena
Human parvovirus B19 (B19V) causes a number of skin exanthemas and has been related to both cutaneous and systemic diseases. Tropism of the virus for the rapidly proliferating erythroid progenitor cells in the bone marrow and fetal liver explains the pathogenesis of anemia and fetal hydrops. The cutaneous lesions of erythema infectiosum and other B19V-related exanthemas have been attributed to the deposition of immune complexes in the skin. We report on the immunohistochemical detection of B19V protein in the cytoplasm of dermal endothelial cells in a case of periflexural exanthema in a 28-year-old woman...
July 6, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28665873/induction-failure-in-acute-leukemia-or-parvovirus-b19-infection
#2
Özlem Tüfekçi, Şebnem Yilmaz Bengoa, Melek Erdem, Hale Ören
Parvovirus B19 infection may be seen in acute leukemia patients and clinical findings and cytopenia caused by the viral infection may complicate the evaluation of the remission status. Herein we present a standard risk pediatric acute lymphobiastic leukemia patient who developed myalgia, bone pain, bone marrow aplasia and sinusoidal obstruction syndrome at the end of the induction treatment and was diagnosed as having parvovirus B19 infection.
June 29, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28633740/parvovirus-b19-infection-in-an-adult-presenting-with-connective-tissue-disease-like-symptoms-a-report-of-the-clinical-and-histological-findings
#3
J E Liles, S C Shalin, B A White, L B Trigg, J R Kaley
Parvovirus B19 infections in adults are usually associated with nonspecific and mild symptoms. However, cases presenting with a lupus-like syndrome have been described, leading to the hypothesis that parvovirus infection can induce connective tissue disease. Various histopathologic features of cutaneous manifestations of parvovirus have been reported, including features which overlap with those of connective tissue disease. Herein, we discuss an unusual case of Parvovirus  B19 infection in a middle-aged woman...
June 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28633302/mumps-clinical-diagnostic-uncertainty
#4
Fabio Magurano, Melissa Baggieri, Antonella Marchi, Paola Bucci, Giovanni Rezza, Loredana Nicoletti
During recent years, various mumps outbreaks have occurred among populations vaccinated for mumps worldwide. In Italy, improving routine coverage with two doses of measles, mumps and rubella (MMR) vaccine is one of the key strategies to eliminate measles and rubella. To monitor the effect of the vaccination programme on the population, the surveillance of these vaccine-preventable diseases has been implemented. This provided the opportunity to evaluate the accuracy of the clinical diagnosis of those diseases, including mumps...
June 12, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28633140/early-intrauterine-transfusion-in-fetuses-with-severe-anemia-caused-by-parvovirus-b19-infection
#5
Astrid Hellmund, Annegret Geipel, Christoph Berg, Rainer Bald, Ulrich Gembruch
OBJECTIVE: To describe procedure-related complications and perinatal survival after intrauterine transfusion (IUT) before 20 weeks of gestation in fetuses with severe anemia due to human parvovirus B19 infection. MATERIALS AND METHODS: A retrospective study was conducted of all fetuses requiring IUT before 20 weeks of gestation in two tertiary referral centers between January 2002 and July 2015. Gestational age (GA) at first IUT, fetal blood sampling results, and presence of hydrops were related to procedure-related complications, fetal death (FD), and perinatal outcome...
June 21, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28618936/detection-and-a-possible-link-between-parvovirus-b19-and-thyroid-cancer
#6
Ashkan Etemadi, Shayan Mostafaei, Kheirollah Yari, Amir Ghasemi, Hamzeh Minaei Chenar, Mohsen Moghoofei
Human parvovirus B19 (B19) is a small, non-enveloped virus and belongs to Parvoviridae family. B19 persists in many tissues such as thyroid tissue and even thyroid cancer. The main aim of this study was to determine the presence of B19, its association with increased inflammation in thyroid tissue, and thus its possible role in thyroid cancer progression. Studies have shown that virus replication in non-permissive tissue leads to overexpression of non-structural protein and results in upregulation of proinflammatory cytokines such as interleukin 6 and tumor necrosis factor alpha...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28608818/impact-of-parvovirus-b19-viremia-in-liver-transplanted-children-on-anemia-a-retrospective-study
#7
Michael Würdinger, Susanne Modrow, Annelie Plentz
Acute parvovirus B19 (B19V) infection in immunocompromised patients may lead to severe anemia. However, in adult transplant recipients, B19V reactivations without anemia and low-level viremia are common. The impact of B19V in pediatric transplant patients, with high risk of primary infection, is investigated here. In a six-month period, 159 blood samples of 54 pediatric liver transplant recipients were tested for B19V DNA by quantitative real-time PCR. Viremia was correlated with anemia and immunosuppression and compared with rates in adult transplant recipients...
June 13, 2017: Viruses
https://www.readbyqxmd.com/read/28601539/it-s-complicated-parvovirus-b19-in-thalassemia
#8
Jesse Bertrand, Madison Dennis, Todd Cutler
No abstract text is available yet for this article.
June 7, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28592274/the-magnitude-and-correlates-of-parvovirus-b19-infection-among-pregnant-women-attending-antenatal-clinics-in-mwanza-tanzania
#9
Mariam M Mirambo, Fatma Maliki, Mtebe Majigo, Martha F Mushi, Nyambura Moremi, Jeremiah Seni, Dismas Matovelo, Stephen E Mshana
BACKGROUND: Human parvovirus B19 (B19) infection has been associated with congenital infection which may result into a number of the adverse pregnancy outcomes. The epidemiology and the magnitude of B19 infections among pregnant women have been poorly studied in developing countries. This study was done to establish preliminary information about the magnitude of B19 among pregnant women attending antenatal clinics in the city of Mwanza, Tanzania. METHODS: A cross-sectional study was conducted between December 2014 and June 2015 among 258 pregnant women attending two antenatal clinics representing rural and urban areas in the city of Mwanza...
June 7, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28591758/are-the-polyomaviruses-bk-and-jc-associated-with-opportunistic-infections-graft-versus-host-disease-or-worse-outcomes-in-adult-patients-receiving-their-first-allogeneic-stem-cell-transplantation-with-low-dose-alemtuzumab
#10
Laila Schneidewind, Thomas Neumann, Florian Knoll, Kathrin Zimmermann, Sigrun Smola, Christian Andreas Schmidt, William Krüger
BACKGROUND: The association of polyomaviruses BK and JC with other opportunistic infections and graft-versus-host disease (GvHD) in allogeneic stem cell transplantation is controversially discussed. METHODS: We conducted a retrospective study of 64 adult patients who received their first allogeneic stem cell transplantation between March 2010 and December 2014; the follow-up time was 2 years. RESULTS: Acute leukemia was the most frequent underlying disease (45...
June 8, 2017: Acta Haematologica
https://www.readbyqxmd.com/read/28583150/prevalence-of-pregnancy-relevant-infections-in-a-rural-setting-of-ghana
#11
Fabian Völker, Paul Cooper, Oliver Bader, Angela Uy, Ortrud Zimmermann, Raimond Lugert, Uwe Groß
BACKGROUND: Although infectious diseases still account for a high burden of morbidity and mortality in sub-Saharan Africa, simultaneous investigations on multiple infections affecting maternal and child health are missing. METHODS: We conducted a cross-sectional, single-centre pilot study in a rural area of Ghana to assess the infectiological profile during pregnancy. Screening of 180 expectant mothers was done by vaginal swabs and serology to detect the most common pregnancy-relevant infections...
June 6, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28573901/a-case-report-of-parvovirus-b19-infection-in-a-renal-allograft
#12
Diana M Oramas, Suman Setty, Vijay Yeldandi, Julio Cabrera, Tushar Patel
Parvovirus B19 infection is undiagnosed in recipients undergoing solid organ transplantation. It is usually responsible for unexplained acute and chronic red blood cell aplasia that does not respond to erythropoietin therapy. Cases of parvovirus B19 infection associated with pancytopenia, solid organ dysfunction, and allograft rejection have been described in the literature. The deterioration of the immune system as a result of severe immunotherapy favors the reactivation of a previous infection or the acquisition of a new one...
June 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28566084/-multicenter-investigation-of-bufavirus-in-the-etiology-of-viral-central-nervous-system-infections-of-adults-and-children
#13
Aylin Altay Koçak, Murat Öcal, Meltem Polat, Saliha Kanık Yüksek, Anıl Aktaş Tapısız, Hasan Tezer, Aykut Özkul, Koray Ergünay, Gülendam Bozdayı, Kamruddin Ahmed
Bufavirus (BuV) is a newly-identified parvovirus in the family of Parvoviridae. Metagenomic analysis of fecal samples from children in Burkina Faso with acute diarrhea showed a highly divergent parvovirus, which was named bufavirus (BuV). The global distribution, epidemiology and genetic characteristics of BuVs infections are obscure. It was first discovered as an agent causing gastroenteritis but the association of BuV infections with various clinical presentations mostly remain to be explored. The aims of this study were to investigate probable impact of BuV in central nervous system infections in a region where it was previously reported to cause human infections and to detect enteroviruses (EV) which are reported as a cause of central nervous system infections in our country...
April 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28554503/saccharomyces-cerevisiae-derived-virus-like-particle-parvovirus-b19-vaccine-elicits-binding-and-neutralizing-antibodies-in-a-mouse-model-for-sickle-cell-disease
#14
Rhiannon R Penkert, Neal S Young, Sherri L Surman, Robert E Sealy, Jason Rosch, Philip R Dormitzer, Ethan C Settembre, Sumana Chandramouli, Susan Wong, Jane S Hankins, Julia L Hurwitz
Parvovirus B19 infections are typically mild in healthy individuals, but can be life threatening in individuals with sickle cell disease (SCD). A Saccharomyces cerevisiae-derived B19 VLP vaccine, now in pre-clinical development, is immunogenic in wild type mice when administered with the adjuvant MF59. Because SCD alters the immune response, we evaluated the efficacy of this vaccine in a mouse model for SCD. Vaccinated mice with SCD demonstrated similar binding and neutralizing antibody responses to those of heterozygous littermate controls following a prime-boost-boost regimen...
June 22, 2017: Vaccine
https://www.readbyqxmd.com/read/28553047/de-novo-collapsing-glomerulopathy-in-renal-allograft-in-association-with-bk-virus-nephropathy-in-a-child-and-stabilization-of-renal-function-by-elimination-of-viremia
#15
D N Gera, M K Shah, V A Ghodela, V B Kute, H L Trivedi
Well-recognized association between HIV 1 infection and collapsing glomerulopathy (CG) raises the possibility that intrarenal infection by other viruses may also contribute to the development of this lesion in native or post-transplant kidneys. There is evidence in literature about association of these lesions with cytomegalovirus, Epstein-Barr virus, hepatitis C virus, and parvovirus B19 infections. Here, we present a case report of post-transplant BK virus nephropathy in a male child who was found to have CG in subsequent biopsy 2 months later...
May 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28543448/successful-treatment-of-pure-red-cell-aplasia-because-of-abo-major-mismatched-stem-cell-transplant
#16
Katie Sackett, Claudia S Cohn, Kayla Fahey-Ahrndt, Angela R Smith, Andrew D Johnson
BACKGROUND: Pure red cell aplasia (PRCA) is a well-documented potential side effect of ABO major mismatched allogeneic hematopoietic stem cell transplants. This side effect may be self-limiting, but is sometimes treated using modalities such as steroids, antithymocyte globulin, donor lymphocyte infusions, rituximab, or plasma exchanges. Another well-documented cause of pure red cell aplasia is a chronic parvovirus B19 infection, which may be seen in immunocompromised hosts. The treatment of this cause of PRCA includes removal of immunosuppression, intravenous immunoglobulin (IVIg), or rituximab; however, this condition may also be self-limiting...
May 24, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28531186/parvovirus-b19-induced-vascular-damage-in-the-heart-is-associated-with-elevated-circulating-endothelial-microparticles
#17
Katrin Bachelier, Susanne Biehl, Viktoria Schwarz, Ingrid Kindermann, Reinhard Kandolf, Martina Sauter, Christian Ukena, Ali Yilmaz, Karen Sliwa, Claus-Thomas Bock, Karin Klingel, Michael Böhm
BACKGROUND: Diagnosis of viral myocarditis is difficult by clinical criteria but facilitated by detection of inflammation and viral genomes in endomyocardial biopsies. Parvovirus B19 (B19V) targets endothelial cells where viral nucleic acid is exclusively detected in the heart. Microparticles (MPs) are released after cell damage or activation of specific cells. We aimed to investigate whether circulating endothelial MPs (EMPs) in human and experimental models of myocarditis are associated with B19V myocarditis...
2017: PloS One
https://www.readbyqxmd.com/read/28512588/severe-aplastic-anemia-following-parvovirus-b19-associated-acute-hepatitis
#18
Masanori Furukawa, Kosuke Kaji, Hiroyuki Masuda, Kuniaki Ozaki, Shohei Asada, Aritoshi Koizumi, Takuya Kubo, Norihisa Nishimura, Yasuhiko Sawada, Kosuke Takeda, Tsuyoshi Mashitani, Masayuki Kubo, Itsuto Amano, Tomoyuki Ootani, Chiho Ohbayashi, Koji Murata, Tatsuichi Ann, Akira Mitoro, Hitoshi Yoshiji
Human parvovirus (HPV) B19 is linked to a variety of clinical manifestations, such as erythema infectiosum, nonimmune hydrops fetalis, and transient aplastic anemia. Although a few cases have shown HPVB19 infection as a possible causative agent for hepatitis-associated aplastic anemia (HAAA) in immunocompetent patients, most reported cases of HAAA following transient hepatitis did not have delayed remission. Here we report a rare case of severe aplastic anemia following acute hepatitis with prolonged jaundice due to HPVB19 infection in a previously healthy young male...
2017: Case Reports in Hepatology
https://www.readbyqxmd.com/read/28500881/a-parvovirus-b19-synthetic-genome-sequence-features-and-functional-competence
#19
Elisabetta Manaresi, Ilaria Conti, Gloria Bua, Francesca Bonvicini, Giorgio Gallinella
Central to genetic studies for Parvovirus B19 (B19V) is the availability of genomic clones that may possess functional competence and ability to generate infectious virus. In our study, we established a new model genetic system for Parvovirus B19. A synthetic approach was followed, by design of a reference genome sequence, by generation of a corresponding artificial construct and its molecular cloning in a complete and functional form, and by setup of an efficient strategy to generate infectious virus, via transfection in UT7/EpoS1 cells and amplification in erythroid progenitor cells...
May 10, 2017: Virology
https://www.readbyqxmd.com/read/28489127/genotype-1-of-human-parvovirus-b19-in-clinical-cases
#20
Maria Isabel de Oliveira, Ana Maria Sardinha Afonso, Suely Pires Curti, Patrícia Evelin Silva, Tamyris Fernanda Barbosa, Elian Reis Silva, Cristina Adelaide Figueiredo
Introduction: Virus surveillance strategies and genetic characterization of human parvovirus B19 (B19V) are important tools for regional and global control of viral outbreak. In São Paulo, Brazil, we performed a study of B19V by monitoring the spread of this virus, which is an infectious agent and could be mistakenly reported as a rash and other types of infection. Method: Serum samples were subjected to enzyme immunoassay, real time polymerase chain reaction, and sequencing...
March 2017: Revista da Associação Médica Brasileira
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