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Parvovirus b19

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https://www.readbyqxmd.com/read/27914222/molecular-diversity-of-human-parvovirus-b19-during-two-outbreaks-of-erythema-infectiosum-in-brazil
#1
Rita de Cássia Nasser Cubel Garcia, Renata Freire Alves Pereira, Kátia Martins Lopes de Azevedo, Tatiana Xavier de Castro, Francisco C A Mello, Sérgio Setubal, Marilda M Siqueira, David Brown, Solange Artimos de Oliveira
This study was conducted to provide information on the genetic diversity of human parvovirus B19 (B19V) circulating in the municipality of Niterói, Rio de Janeiro, Southeast Brazil during 1996-2006, a period with two distinct outbreaks of B19V infection: 1999-2000 and 2004-2005. A total of 27 sera from patients with erythema infectiosum (EI) and five sera from HIV-infected patients that tested positive for B19V DNA during the study period were analyzed. To genotype B19V strains, a semi-nested PCR for partial amplification of the capsid gene was performed and sequence analysis revealed that 31 sequences belonged to subgenotype 1a (G1a) of the main genotype 1 and one sequence was characterized as subgenotype 3b (G3b)...
November 30, 2016: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27913462/pure-red-cell-aplasia
#2
Robert T Means
Pure red cell aplasia (PRCA) is a syndrome defined by a normocytic normochromic anemia with severe reticulocytopenia and marked reduction or absence of erythroid precursors from the bone marrow. Diamond-Blackfan anemia is a congenital form of PRCA. Acquired PRCA may be either a primary disorder or secondary to some other disorder or agent. Primary acquired PRCA is an autoimmune disorder that is frequently antibody-mediated. Myelodysplastic syndromes may also present with the morphologic appearance of PRCA. Secondary acquired PRCA may be associated with collagen vascular/autoimmune disorders such as systemic lupus erythematosus; lymphoproliferative disorders such as chronic lymphocytic leukemia or large granular lymphocyte leukemia; infections, particularly B19 parvovirus; thymoma and other solid tumors; or a variety of other disorders, drugs, or toxic agents...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27902343/the-frequency-and-significance-of-the-parvovirus-b19-infection-in-patients-with-rheumatoid-arthritis
#3
Milda Naciute, Diana Mieliauskaite, Rita Rugiene, Rita Nikitenkiene, Ligita Jancoriene, Mykolas Mauricas, Zaiga Nora-Krukle, Modra Murovska, Irute Girkontaite
The present study aims to clarify the possible involvement of parvovirus B19 (B19V) infection in rheumatoid arthritis (RA) pathogenesis by investigating the presence of B19V infection markers (genomic sequences and virus-specific antibodies) in association with the level of cytokines and RA clinical activity and aggressiveness. 118 RA patients and 49 age and sex matched healthy volunteers were enrolled in the study. Nested PCR was used to detect B19V sequences in whole blood and cell free plasma DNA, ELISA to detect virus-specific antibodies and cytokine levels in plasma, and recomLine dot blot assay for antibodies to separate B19V antigens...
October 14, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27902331/the-plasma-virome-of-febrile-adult-kenyans-shows-frequent-parvovirus-b19-infections-and-a-novel-arbovirus-kadipiro-virus
#4
Carolyne Ngoi, Juliana Siqueira, Linlin Li, Xutao Deng, Peter Mugo, Susan Graham, Matt Price, Eduard Sanders, Eric Delwart
Viral nucleic acids present in the plasma of 498 Kenyan adults with unexplained fever were characterized by metagenomics analysis of 51 sample pools. The highest to lowest fraction of plasma pools was positive for parvovirus B19 (75%), pegivirus C (GBV-C) (67%), alpha anellovirus (59%), gamma anellovirus (55%), beta anellovirus (41%), Dengue virus genotype 2 (DENV-2) (16%), HIV-1 (6%), HHV-6 (6%), HBV (4%), rotavirus (4%), norovirus (4%), rhinovirus C (2%), Merkel cell polyomavirus (MCPyV)(2%) and Kadipiro virus (2%)...
October 24, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27900796/parvovirus-b19-infection-presenting-concurrently-as-papular-purpuric-gloves-and-socks-syndrome-and-bathing-trunk-eruption
#5
I Vázquez-Osorio, S Mallo-García, E Rodríguez-Díaz, P Gonzalvo-Rodríguez, L Requena
Parvovirus B19 infection can cause a wide range of cutaneous manifestations, including papular-purpuric gloves-and-socks syndrome (PPGSS) and petechial bathing trunk eruption. We report a case of an immunocompetent woman with a primary parvovirus B19 infection presenting as concurrent PPGSS and petechial bathing trunk eruption. Parvovirus B19 seroconversion was confirmed several days after the onset of the clinical manifestations. The coexistence of these two cutaneous manifestations of primary parvovirus B19 infection has rarely been reported in the literature...
November 30, 2016: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/27883411/acute-liver-failure-during-treatment-of-interferon-alpha-2a-chronic-hepatitis-b-and-coinfection-of-parvovirus-b19
#6
Barbara Sobala-Szczygieł, Anna Boroń-Kaczmarska, Lucjan Kępa, Barbara Oczko-Grzesik, Damian Piotrowski, Wojciech Stolarz
Parvovirus B19 infection is associated with a broad spectrum of clinical manifestations among which some are well known but others remain controversial. The role of this infection as a cause of acute hepatitis or exacerbation of chronic liver disease requires discussion regarding its significance in a strategy of prevention and treatment of patients with chronic hepatitis. Clinical importance of this infection in patients with chronic hepatitis B treated with pegylated interferon alpha 2a is still unclear but exactly in this population significant complications during treatment may arise...
2016: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/27883410/acute-liver-failure-during-treatment-of-interferon-alpha-2a-chronic-hepatitis-b-and-coinfection-of-parvovirus-b19
#7
Barbara Sobala-Szczygieł, Anna Boroń-Kaczmarska, Lucjan Kępa, Barbara Oczko-Grzesik, Damian Piotrowski, Wojciech Stolarz
No abstract text is available yet for this article.
2016: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/27881371/pure-red-cell-aplasia
#8
REVIEW
Robert T Means
Pure red cell aplasia (PRCA) is a syndrome defined by a normocytic normochromic anemia with severe reticulocytopenia and marked reduction or absence of erythroid precursors from the bone marrow. Diamond-Blackfan anemia is a congenital form of PRCA. Acquired PRCA may be either a primary disorder or secondary to some other disorder or agent. Primary acquired PRCA is an autoimmune disorder that is frequently antibody-mediated. Myelodysplastic syndromes may also present with the morphologic appearance of PRCA. Secondary acquired PRCA may be associated with collagen vascular/autoimmune disorders such as systemic lupus erythematosus; lymphoproliferative disorders such as chronic lymphocytic leukemia or large granular lymphocyte leukemia; infections, particularly B19 parvovirus; thymoma and other solid tumors; or a variety of other disorders, drugs, or toxic agents...
November 24, 2016: Blood
https://www.readbyqxmd.com/read/27869981/description-of-the-first-cases-of-zika-virus-fever-investigated-in-municipalities-of-the-brazilian-northeastern-region-2015
#9
Francieli Fontana Sutile Tardetti Fantinato, Emerson Luiz Lima Araújo, Igor Gonçalves Ribeiro, Marcia Regina de Andrade, Anna Livia de Medeiros Dantas, Jakeline Maria Trinta Rios, Odila Márcia Vinhas da Silva, Maria do Socorro da Silva, Renata Valeria Nóbrega, Daniel de Araújo Batista, Priscila Leal E Leite, Eduardo Saad, Jadher Percio, Elionardo Andrade Resende, Priscila Bochi de Souza, Marcelo Yoshito Wada
OBJECTIVE: to confirm Zika virus circulation and discard other etiological agents in an outbreak occurred in the states of Rio Grande do Norte, Maranhão and Paraíba, in May, 2015. METHODS: this is a case series descriptive study with residents in Natal-RN, Barra do Corda-MA, São Luis-MA and João Pessoa-PB, with 20 cases in each state, presenting rash, absent or mild fever and one of the following signs/symptoms: conjunctival hyperemia, arthralgia or limb edema; RT-PCR/isolation tests for Zika, enterovirus and respiratory viruses, and serology tests (dengue, rubella and parvovirus B19) were performed...
October 2016: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/27865549/anaemia-and-fever-in-kidney-transplant-the-role-of-human-parvovirus-b19
#10
Yanet Parodis López, Raquel Santana Estupiñán, Silvia Marrero Robayna, Roberto Gallego Samper, Fernando Henríquez Palop, José Carlos Rivero Vera, Rafael Camacho Galán, María José Pena López, Nery Sablón González, Fayna González Cabrera, Elena Oliva Dámaso, Nicanor Vega Díaz, José Carlos Rodríguez Pérez
Infections remain an issue of particular relevance in renal transplant patients, particularly viral infections. Human parvovirus B19 infection causes severe refractory anaemia, pancytopenia and thrombotic microangiopathy. Its presence is recognized by analysing blood polymerase chain reaction (PCR) and by the discovery of typical giant proerythroblasts in the bone marrow. We report the case of a 65 year-old man with a history of deceased donor renal transplant in September 2014. At 38 days after the transplant, the patient presented progressive anaemia that was resistant to erythropoiesis-stimulating agents...
November 16, 2016: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/27851407/1772-vasodilatory-shock-due-to-parvovirus-b19-infection
#11
Akira Kuriyama, Hiromitsu Tabata, Hiroshi Kitaguchi
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27812527/a-novel-murine-model-of-parvovirus-associated-dilated-cardiomyopathy-induced-by-immunization-with-vp1-unique-region-of-parvovirus-b19
#12
Julijus Bogomolovas, Egidijus Šimoliūnas, Ieva Rinkūnaitė, Luka Smalinskaitė, Andrej Podkopajev, Daiva Bironaitė, Cleo-Aron Weis, Alexander Marx, Virginija Bukelskienė, Norbert Gretz, Virginija Grabauskienė, Dittmar Labeit, Siegfried Labeit
Background. Parvovirus B19 (B19V) is a common finding in endomyocardial biopsy specimens from myocarditis and dilated cardiomyopathy patients. However, current understanding of how B19V is contributing to cardiac damage is rather limited due to the lack of appropriate mice models. In this work we demonstrate that immunization of BALB/c mice with the major immunogenic determinant of B19V located in the unique sequence of capsid protein VP1 (VP1u) is an adequate model to study B19V associated heart damage. Methods and Results...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27809499/dna-binding-and-cleavage-by-human-parvovirus-b19-ns1-nuclease-domain
#13
Jonathan L Sanchez, Zachary Romero, Angelica Quinones, Kristiane R Torgeson, Nancy C Horton
Infection with human parvovirus B19 (B19V) has been associated with a myriad of illnesses, including erythema infectiosum (Fifth disease), hydrops fetalis, arthropathy, hepatitis, cardiomyopathy and also possibly the triggering of any number of different autoimmune diseases. B19V NS1 is a multi-domain protein that plays a critical role in viral replication, with predicted nuclease, helicase, and gene transactivation activities. Herein we investigate the biochemical activities of the nuclease domain (residues 2-176) of B19V NS1 (NS1-nuc) in sequence-specific DNA binding of the viral origin of replication sequences, as well as those of promoter sequences including the viral p6 and the human p21, TNFα, and IL-6 promoters previously identified in NS1-dependent transcriptional transactivation...
November 4, 2016: Biochemistry
https://www.readbyqxmd.com/read/27806994/human-parvoviruses
#14
REVIEW
Jianming Qiu, Maria Söderlund-Venermo, Neal S Young
Parvovirus B19 (B19V) and human bocavirus 1 (HBoV1), members of the large Parvoviridae family, are human pathogens responsible for a variety of diseases. For B19V in particular, host features determine disease manifestations. These viruses are prevalent worldwide and are culturable in vitro, and serological and molecular assays are available but require careful interpretation of results. Additional human parvoviruses, including HBoV2 to -4, human parvovirus 4 (PARV4), and human bufavirus (BuV) are also reviewed...
January 2017: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/27797900/viral-associated-gn-hepatitis-b-and-other-viral-infections
#15
Warren L Kupin
By definition, viral-associated GN indicates the direct pathogenic relationship between active viral replication and the development of acute GN. This definition is in sharp contrast to the semantic label and pathophysiologic foundation behind postinfectious GN that uniquely develops only during a period of resolved and absent active infection. The primary example of postinfectious GN are the glomerular lesions described after a pharyngeal or cutaneous streptococcal infection and do not represent the clinical or immunologic pattern seen with viral-associated GN...
October 18, 2016: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/27789725/the-chemokine-cxcl-10-is-a-marker-for-the-infection-stage-in-individuals-with-parvovirus-b19-dnaemia
#16
L Weseslindtner, J H Aberle, L Hedman, K Hedman
BACKGROUND:  Accurate diagnosis of Parvovirus B19 (B19V) infection requires the differentiation between acute and past infection, which is especially important when B19V DNAemia is detected in pregnancy. Here, we explored the ability of the chemokine CXCL-10 in combination with molecular and serological assays to discriminate between acute and past B19V infection. METHODS:  B19V DNA positive serum samples from 222 immunocompetent individuals were analyzed for (a) viral DNA loads, (b) anti-B19V IgM and IgG, (c) anti-VP1 IgG avidity, (d) anti-VP-2 epitope type specificity (ETS) as well as for (e) CXCL-10 serum levels...
October 26, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27784395/-prevalence-of-parvovirus-b19-infection-in-chinese-xiamen-area-blood-donors
#17
Shan-Hai Ou, Jin-Zhen Xie, Ya-Li Zhang, Hong-Ying Ni, Xiu-Yu Song
OBJECTIVE: To estimate the prevalence of parvovirus B19 infection in Chinese Xiamen area blood donors. METHODS: Blood samples from blood donors were tested for detection of parvovirus B19 DNA and antibody. The direct sequencing and genetype analysis of B19 DNA positive samples were performed. RESULTS: Six out of 10452 samples were B19 DNA positive. The viral loads of the 6 samples were between 3.59×10(2)-1.07×10(4) IU/ml; the positive rate of B19-IgM was 4...
October 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/27775080/substitution-rate-and-natural-selection-in-parvovirus-b19
#18
Gorana G Stamenković, Valentina S Ćirković, Marina M Šiljić, Jelena V Blagojević, Aleksandra M Knežević, Ivana D Joksić, Maja P Stanojević
The aim of this study was to estimate substitution rate and imprints of natural selection on parvovirus B19 genotype 1. Studied datasets included 137 near complete coding B19 genomes (positions 665 to 4851) for phylogenetic and substitution rate analysis and 146 and 214 partial genomes for selection analyses in open reading frames ORF1 and ORF2, respectively, collected 1973-2012 and including 9 newly sequenced isolates from Serbia. Phylogenetic clustering assigned majority of studied isolates to G1A. Nucleotide substitution rate for total coding DNA was 1...
October 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27772627/not-the-usual-viral-suspects-parvovirus-b19-west-nile-virus-and-human-t-cell-lymphotrophic-virus-infections-after-kidney-transplantation
#19
REVIEW
Raymund R Razonable
Kidney transplant recipients are at increased risk of developing clinical disease due to uncommon opportunistic viral pathogens. Refractory anemia is classically associated with parvovirus B19 infection. West Nile virus has the propensity to cause fever and neurologic symptoms, while spastic paresis and lymphoma can be triggered by human T cell lymphotrophic virus. In this review article, the epidemiology, clinical manifestations, diagnosis and treatment of less common viruses are discussed in the setting of kidney transplantation...
September 2016: Seminars in Nephrology
https://www.readbyqxmd.com/read/27761646/-viral-arthritis-and-vasculitis
#20
U Sixdorf, E Märker-Hermann
Viral arthritis and vasculitis are important differential diagnoses primarily in patients with acute polyarticular arthritis in association with fever and rash, in populations specially at risk and in returning travellers. Parvovirus B19 is the most frequent cause of viral arthritis in Europe, whereas rubella, hepatitis B and C viruses have become less common. Due to worldwide tourism arthritogenic alphaviruses, which are transmitted by mosquito vectors have come into the focus of tropical medicine and rheumatology...
October 19, 2016: Zeitschrift Für Rheumatologie
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