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Parvovirus b19

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https://www.readbyqxmd.com/read/28328962/the-blood-dna-virome-in-8-000-humans
#1
Ahmed Moustafa, Chao Xie, Ewen Kirkness, William Biggs, Emily Wong, Yaron Turpaz, Kenneth Bloom, Eric Delwart, Karen E Nelson, J Craig Venter, Amalio Telenti
The characterization of the blood virome is important for the safety of blood-derived transfusion products, and for the identification of emerging pathogens. We explored non-human sequence data from whole-genome sequencing of blood from 8,240 individuals, none of whom were ascertained for any infectious disease. Viral sequences were extracted from the pool of sequence reads that did not map to the human reference genome. Analyses sifted through close to 1 Petabyte of sequence data and performed 0.5 trillion similarity searches...
March 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28288327/parvovirus-b19-infection-modulates-the-levels-of-cytokines-in-the-plasma-of-rheumatoid-arthritis-patients
#2
Milda Naciute, Diana Mieliauskaite, Rita Rugiene, Gabriele Maciunaite, Mykolas Mauricas, Modra Murovska, Irute Girkontaite
BACKGROUND: Parvovirus B19 (B19V) infection is associated with various autoimmune diseases. We investigated the levels of pro-inflammatory (IFNᵧ, TNFα, IL-2, IL-12) and anti-inflammatory (IL-4, IL-10) cytokines in the plasma of B19V DNA positive (B19(+)) and negative (B19(-)) rheumatoid arthritis (RA) patients in comparison with the control group (healthy persons). METHODS: Blood samples were collected from 118 patients with RA and 49 healthy voluntaries. B19V sequence was determined in whole blood and cell-free plasma DNA by nested PCR...
March 10, 2017: Cytokine
https://www.readbyqxmd.com/read/28264028/parvovirus-b19-ns1-protein-induces-cell-cycle-arrest-at-g2-phase-by-activating-the-atr-cdc25c-cdk1-pathway
#3
Peng Xu, Zhe Zhou, Min Xiong, Wei Zou, Xuefeng Deng, Safder S Ganaie, Steve Kleiboeker, Jianxin Peng, Kaiyu Liu, Shengqi Wang, Shui Qing Ye, Jianming Qiu
Human parvovirus B19 (B19V) infection of primary human erythroid progenitor cells (EPCs) arrests infected cells at both late S-phase and G2-phase, which contain 4N DNA. B19V infection induces a DNA damage response (DDR) that facilitates viral DNA replication but is dispensable for cell cycle arrest at G2-phase; however, a putative C-terminal transactivation domain (TAD2) within NS1 is responsible for G2-phase arrest. To fully understand the mechanism underlying B19V NS1-induced G2-phase arrest, we established two doxycycline-inducible B19V-permissive UT7/Epo-S1 cell lines that express NS1 or NS1mTAD2, and examined the function of the TAD2 domain during G2-phase arrest...
March 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28263841/the-formation-and-modification-of-chromatin-like-structure-of-human-parvovirus-b19-regulate-viral-genome-replication-and-rna-processing
#4
Huanzhou Xu, Sujuan Hao, Junmei Zhang, Zhen Chen, Hanzhong Wang, Wuxiang Guan
B19 virus (B19V) is a single stranded virus in the genus of Erythroparvovirus in the family of Parvoviridae. One of the limiting steps of B19V infection is the replication of viral genome which affected the alternative processing of its RNA. Minute virus of mice (MVM) and adeno-associated virus (AAV) has been reported to form chromatin-like structure within hours after infection of cells. However, the role of chromatin-like structure is unclear. In the present study, we found that B19V formed chromatin-like structure after 12h when B19V infectious clone was co-transfected with pHelper plasmid to HEK293T cells...
March 2, 2017: Virus Research
https://www.readbyqxmd.com/read/28241813/anaemia-in-hospitalised-preschool-children-from-a-rural-area-in-mozambique-a-case-control-study-in-search-for-aetiological-agents
#5
Cinta Moraleda, Ruth Aguilar, Llorenç Quintó, Tacilta Nhampossa, Montserrat Renom, Augusto Nhabomba, Sozinho Acácio, John J Aponte, Delino Nhalungo, Ariel H Achtman, Louis Schofield, Helder Martins, Eusebio Macete, Pedro L Alonso, Clara Menéndez
BACKGROUND: Young children bear the world's highest prevalence of anaemia, the majority of which is of multifactorial aetiology, which in turn hampers its successful prevention. Even moderate degrees of anaemia are associated with increased mortality and morbidity. Despite this evidence, there is a lack of effective preventive programs and absence of consensus in the safety of iron supplementation in malaria areas, which reflects the poor understanding of the contribution of different aetiologies to anaemia...
February 28, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28196283/detection-of-human-parvovirus-b19-dna-in-22-of-1-815-cutaneous-biopsies-of-a-wide-variety-of-dermatologic-conditions-suggests-viral-persistence-after-primary-infection-and-casts-doubts-on-its-pathogenic-significance
#6
C Santonja, A Santos-Briz, G Palmedo, H Kutzner, L Requena
BACKGROUND: Human parvovirus B19 (B19V) has been associated with a number of dermatologic and systemic conditions, including myocarditis and autoimmune syndromes. OBJECTIVES: To determine the frequency of B19V deoxyribonucleic acid (DNA) detection in a large dermatopathology practice, and to characterize the histopathologic patterns involved. METHODS: We selected for polymerase chain reaction (PCR) detection of B19V a total of 1,815 skin biopsies pertaining to entities allegedly related to Parvovirus B19, as well as cases suspected clinically of representing paraviral exanthemas...
February 14, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28161113/-myocarditis
#7
G Hékimian, A Combes
Acute myocarditis must be considered in patients with recent onset of cardiac failure or arrhythmia. Fulminant myocarditis is a distinct entity characterized by sudden onset of severe congestive heart failure or cardiogenic shock, usually following a flu-like illness, parvovirus B19, human herpesvirus 6, coxsackie virus and adenovirus being the most frequently viruses responsible for the disease. In this setting, early recognition of patients rapidly progressing to refractory cardiac failure and their immediate transfer to a medical-surgical center experienced in mechanical circulatory support is warranted...
February 1, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28142135/frequency-and-genotype-of-human-parvovirus-b19-among-iranian-hemodialysis-and-peritoneal-dialysis-patients
#8
Alireza Sharif, Arezoo Aghakhani, Ali Akbar Velayati, Mohammad Banifazl, Mohammad Reza Sharif, Effat Razeghi, Davood Kheirkhah, Monireh Kazemimanesh, Anahita Bavand, Amitis Ramezani
OBJECTIVES: The aim of this study was to evaluate the frequency and genotype of human parvovirus B19 and its relation with anemia among Iranian patients under dialysis. METHODS: Fifty hemodialysis (HD) and 33 peritoneal dialysis (PD) patients were enrolled. B19 IgG and IgM antibodies were assessed by ELISA, and the presence of B19 DNA was evaluated by nested PCR. PCR products were sequenced directly and phylogenetic analysis was performed. RESULTS: In the HD group, the prevalence of B19 antibodies was 54% for IgG and 4% for IgM...
2016: Intervirology
https://www.readbyqxmd.com/read/28116652/does-parvovirus-infection-have-a-role-in-systemic-lupus-erythematosus
#9
Tami Hod, Giselle Zandman-Goddard, Pnina Langevitz, Hagit Rudnic, Zehava Grossman, Pnina Rotman-Pikielny, Yair Levy
We sought to evaluate a possible link between parvovirus B19 infection and the clinical and laboratory expression of systemic lupus erythematosus (SLE). SLE patients were examined to evaluate their clinical status and disease activity. A complete Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) score was obtained for each patient. In addition, we determined the level of systemic involvement throughout the course of the disease. Blood levels of IgM and IgG antibodies to parvovirus B19, levels of anti-dsDNA, C3, and C4 were measured...
January 23, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28068282/serological-and-molecular-biological-studies-of-parvovirus-b19-coxsackie-b-viruses-and-adenoviruses-as-potential-cardiotropic-viruses-in-bulgaria
#10
Stefka Kr Ivanova, Svetla G Angelova, Asya P Stoyanova, Irina L Georgieva, Lubomira K Nikolaeva-Glomb, Zafira G Mihneva, Neli St Korsun
BACKGROUND: Inflammatory diseases of the heart (myocarditis, pericarditis) are commonly caused by viruses. Among the human cardiotropic viruses, parvovirus B19, Coxsackie B viruses, and adenoviruses play a leading role. AIM: The aim of the present study was to determine the presumptive causative role of parvovirus B19, Coxsackie B viruses, and adenoviruses in the development of myocarditis, pericarditis and dilated cardiomyopathy by demonstrating the presence of specific antiviral antibodies or viral DNA in patients' serum samples...
December 1, 2016: Folia Medica
https://www.readbyqxmd.com/read/28063562/infection-au-parvovirus-b19-pendant-la-grossesse
#11
Joan Crane, William Mundle, Isabelle Boucoiran
No abstract text is available yet for this article.
December 2016: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28060552/the-root-extract-of-gentiana-macrophylla-pall-alleviates-b19-ns1-exacerbated-liver-injuries-in-nzb-w-f1-mice
#12
Ming-Jen Sheu, Chun-Ching Chiu, Deng-Jye Yang, Tsai-Ching Hsu, Bor-Show Tzang
The nonstructural protein NS1 of human parvovirus B19 (B19) is known to exacerbate disease activity in systemic lupus erythematosus (SLE). However, no specific medicine for B19 infection is available. The roots of Gentiana macrophylla Pall. (GM), the traditional Chinese medicine "Qinjiao," have been used for centuries to treat rheumatic disease, including SLE. Herein, we aimed to investigate the effects of GM root extract (100 and 300 mg/kg body weight) on B19-NS1-exacerbated liver injury in NZB/W F1 mice; liver tissues were assessed by hematoxylin-eosin staining and immunoblotting...
January 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28018767/a-rare-case-of-hemophagocytic-lymphohistiocytosis-associated-with-parvovirus-b19-infection
#13
Cai Yuan, Fnu Asad-Ur-Rahman, Khalid Abusaada
Hemophagocytic lymphohistiocytosis (HLH) is a rare but life-threatening syndrome resulting from excessive immune activation. Secondarily, HLH is often associated with autoimmune disease, infection, and malignancy. The most common infectious trigger is Epstein-Barr virus (EBV) infection. HLH is rarely triggered by parvovirus B19. We discuss a case of a 62-year-old male who presented with multi-organ failure with presumed septic shock who eventually was diagnosed with HLH, with positive parvovirus B19 deoxyribonucleic acid (DNA) polymerase chain reaction (PCR)...
November 24, 2016: Curēus
https://www.readbyqxmd.com/read/27998301/acute-polyarthritis-in-a-young-patient-caused-by-meningococcal-and-parvovirus-b19-infections-a-case-report-and-review-of-the-literature
#14
Virginie Lavoipierre, Anna Dellyes, Camille Aubry, Christine Zandotti, Pierre Lafforgue, Philippe Parola, Jean-Christophe Lagier
BACKGROUND: Meningococcal infection is a multifaceted disease including acute polyarthritis. This presentation should be known by clinicians in order to prevent delay in treatment. We report what we believe to be the first case of an association of parvovirus B19 and meningococcal polyarthritis in a young adult. CASE PRESENTATION: A 19-year-old Caucasian woman presented to our hospital with fever, intense leg pain, and a transient rash. A physical examination showed asymmetric polyarthritis and no neurological abnormalities...
December 20, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27928490/the-prevalence-of-parvovirus-b19-infection-among-pregnant-women-of-ardabil-in-2013
#15
Shahram Habibzadeh, Hadi Peeri-Doghaheh, Jafar Mohammad-Shahi, Elham Mobini, Samira Shahbazzadegan
BACKGROUND AND OBJECTIVES: Trans-placental transmission of parvovirus B19 during pregnancy can causes adverse outcomes. Regarding its importance in prenatal care, we decided to study prevalence of parvovirus B19 infection among pregnant woman in Ardabil, Iran. MATERIALS AND METHODS: In a community based study with a cluster sampling, 350 pregnant women that attended in health care centers in Ardabil were selected. Serum samples were collected and Anti-B19 specific IgG was detected using commercial enzyme-linked immunosorbent assays (Euroimmune Elisa kit, Germany)...
June 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/27914222/molecular-diversity-of-human-parvovirus-b19-during-two-outbreaks-of-erythema-infectiosum-in-brazil
#16
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 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)...
January 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27913462/pure-red-cell-aplasia
#17
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/frequency-and-significance-of-parvovirus-b19-infection-in-patients-with-rheumatoid-arthritis
#18
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. A total of 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...
December 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
#19
Carolyne N Ngoi, Juliana Siqueira, Linlin Li, Xutao Deng, Peter Mugo, Susan M Graham, Matt A Price, Eduard J 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 %), human immunodeficiency virus type 1 (6 %), human herpesvirus 6 (6 %), HBV (4 %), rotavirus (4 %), hepatitis B virus (4 %), rhinovirus C (2 %), Merkel cell polyomavirus (MCPyV; 2 %) and Kadipiro virus (2 %)...
December 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
#20
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...
January 2017: Clinical and Experimental Dermatology
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