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https://www.readbyqxmd.com/read/28543448/successful-treatment-of-pure-red-cell-aplasia-because-of-abo-major-mismatched-stem-cell-transplant
#1
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/28532806/a-molecular-survey-for-selected-viral-enteropathogens-revealed-a-limited-role-of-canine-circovirus-in-the-development-of-canine-acute-gastroenteritis
#2
Giulia Dowgier, Eleonora Lorusso, Nicola Decaro, Costantina Desario, Viviana Mari, Maria Stella Lucente, Gianvito Lanave, Canio Buonavoglia, Gabriella Elia
Canine circovirus (CanineCV) is a canine virus, whose pathogenetic role is still uncertain. Based on recent data suggesting its role as entheropathogen, a case-control study was conducted between 2013 and 2016 to investigate the association of CanineCV with gastroenteritis in dogs, alone or in combination with other viral pathogens, including canine parvovirus (CPV), canine coronavirus (CCoV) and canine distemper virus (CDV). A total of 219 dogs suffering from acute gastroenteritis disorders and 67 controls randomly recruited among healthy dogs or patients presenting without enteric signs were screened by a panel of real-time (RT-)PCR assays for CanineCV, CPV, CCoV and CDV...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28531186/parvovirus-b19-induced-vascular-damage-in-the-heart-is-associated-with-elevated-circulating-endothelial-microparticles
#3
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/28523923/genetic-characterization-of-canine-parvovirus-from-dogs-in-pakistan
#4
M Z Shabbir, M U Sohail, U N Chaudhary, W Yaqub, I Rashid, M H Saleem, M Munir
Canine parvoviruses (CPV) exist as antigenic variants with varying frequencies and genetic variabilities across the globe. Given the endemicity and high prevalence in Pakistan, we characterized the CPVs originating from dogs-population to elucidate viral diversity and evolution. Fecal samples from clinically diseased pups (n = 17) of different breeds and age (2-6 months) were processed for hemagglutination assay (HA), and later for partial amplification of VP2 gene sequence and amino acid analysis. A total of 11 samples (64...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28523918/current-status-of-viral-diseases-in-indian-shrimp-aquaculture
#5
G M Tandel, K Riji John, M Rosalind George, M J Prince Jeyaseelan
The intensification of aquaculture has been unique in showing the overwhelming changes in global food production in the last 100 years. Presently, it is playing a vital role in the economies of several countries. Conversely, it is also to be noted that the progression of aquaculture has been the foundation of anthropogenic alteration of a gigantic hierarchy and hence not astonishingly, it resulted in spread and emergence of an increasing group of new unknown diseases. In India, Penaeus monodon, black tiger shrimp was previously the foremost-cultivated shrimp species...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28523387/seroprevalence-of-economically-important-viral-pathogens-in-swine-populations-of-trinidad-and-tobago-west-indies
#6
Jamie R V Sookhoo, Arianne Brown-Jordan, Lemar Blake, Ridley B Holder, Sharon M Brookes, Stephen Essen, Christine V F Carrington, Ian H Brown, Christopher A L Oura
The objective of this study was to evaluate the seroprevalence and identify the strains of swine influenza virus (SwIV), as well as the seroprevalence of porcine parvovirus (PPV), transmissible gastroenteritis virus (TGEV), porcine reproductive and respiratory syndrome virus (PRRSV), porcine respiratory coronavirus (PRCV), porcine circovirus type 2 (PCV-2), and classical swine fever virus (CSFV) in pigs in Trinidad and Tobago (T&T). Blood samples (309) were randomly collected from pigs at farms throughout T&T...
May 18, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28516484/incidental-finding-of-recent-parvovirus-infection
#7
Elaine Leung, Eileen McBride
No abstract text is available yet for this article.
May 18, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28512588/severe-aplastic-anemia-following-parvovirus-b19-associated-acute-hepatitis
#8
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/28508264/biological-safety-of-a-highly-purified-10-liquid-intravenous-immunoglobulin-preparation-from-human-plasma
#9
Caroline Goussen, Steve Simoneau, Soline Bérend, Christine Jehan-Kimmel, Anne Bellon, Céline Ducloux, Bruno You, Philippe Paolantonacci, Monique Ollivier, Ludovic Burlot, Sami Chtourou, Benoît Flan
BACKGROUND: A highly purified 10% liquid intravenous immunoglobulin, IQYMUNE(®), has been developed using an innovative manufacturing process including an affinity chromatography step for the removal of anti-A and anti-B hemagglutinins. OBJECTIVES: The pathogen (viruses and prions) clearance efficacy of the manufacturing process and its robustness for critical steps were investigated. METHODS: The manufacturing process of IQYMUNE(®) includes two dedicated complementary virus reduction steps: solvent/detergent (S/D) treatment and 20 nm nanofiltration as well as two contributing steps, namely caprylic acid fractionation and anion-exchange chromatography...
May 15, 2017: BioDrugs: Clinical Immunotherapeutics, Biopharmaceuticals and Gene Therapy
https://www.readbyqxmd.com/read/28500881/a-parvovirus-b19-synthetic-genome-sequence-features-and-functional-competence
#10
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/28499542/development-of-a-taqman-based-real-time-pcr-assay-for-the-rapid-and-specific-detection-of-novel-duck-origin-goose-parvovirus
#11
Jianchang Wang, Jinfeng Wang, Yuan Cui, Huizhu Nan, Wanzhe Yuan
A real-time PCR assay was developed for specific detection of novel duck-origin goose parvovirus (N-GPV), the etiological agent of duck beak atrophy and dwarfism syndrome (BADS). The detection limit of the assay was 10(2) copies. The assay was useful in the prevention and control of BADS.
May 9, 2017: Molecular and Cellular Probes
https://www.readbyqxmd.com/read/28497124/parv4-prevalence-phylogeny-immunology-and-coinfection-with-hiv-hbv-and-hcv-in-a-multicentre-african-cohort
#12
Colin P Sharp, William F Gregory, Louise Hattingh, Amna Malik, Emily Adland, Samantha Daniels, Anriette van Zyl, Jonathan M Carlson, Susan Wareing, Anthony Ogwu, Roger Shapiro, Lynn Riddell, Fabian Chen, Thumbi Ndung'u, Philip J R Goulder, Paul Klenerman, Peter Simmonds, Pieter Jooste, Philippa C Matthews
Background: The seroprevalence of human parvovirus-4 (PARV4) varies considerably by region. In sub-Saharan Africa, seroprevalence is high in the general population, but little is known about the transmission routes or the prevalence of coinfection with blood-borne viruses, HBV, HCV and HIV.  Methods: To further explore the characteristics of PARV4 in this setting, with a particular focus on the prevalence and significance of coinfection, we screened a cohort of 695 individuals recruited from Durban and Kimberley (South Africa) and Gaborone (Botswana) for PARV4 IgG and DNA, as well as documenting HIV, HBV and HCV status...
April 7, 2017: Wellcome Open Research
https://www.readbyqxmd.com/read/28494237/microbial-vertical-transmission-during-human-pregnancy
#13
REVIEW
Nitin Arora, Yoel Sadovsky, Terence S Dermody, Carolyn B Coyne
Congenital infections with pathogens such as Zika virus, Toxoplasma gondii, Listeria monocytogenes, Treponema pallidium, parvovirus, HIV, varicella zoster virus, Rubella, Cytomegalovirus, and Herpesviruses are a major cause of morbidity and mortality worldwide. Despite the devastating impact of microbial infections on the developing fetus, relatively little is known about how pathogens associated with congenital disease breach the placental barrier to transit vertically during human pregnancy. In this Review, we focus on transplacental transmission of pathogens during human gestation...
May 10, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28489127/genotype-1-of-human-parvovirus-b19-in-clinical-cases
#14
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
https://www.readbyqxmd.com/read/28483442/molecular-detection-and-genomic-characterization-of-torque-teno-canis-virus-in-domestic-dogs-in-guangxi-province-china
#15
Wenchao Sun, Changzhan Xie, Cao Liang, Min Zheng, Guanyu Zhao, Ping Zhang, Jicheng Han, Jie Jing, Shubo Wen, Pengpeng Xiao, Zhuodong Cui, Jinyong Zhang, Jingqiang Ren, Hao Liu, Huijun Lu, Ningyi Jin
The Torque teno canis virus (TTCaV) is a small virus with circular single-stranded DNA that has been reported to cause infections in dogs. The present study aimed to identify the presence of TTCaV in blood samples obtained from domestic dogs, and examine its diversity and evolution of the genomes. Five strains of TTCaV were detected, and the overall prevalence was found to be 7% (28/400). Phylogenetic analysis showed that the five genomes were closely clustered with the previously known Cf-TTV10 and LDL strains and formed a Thetatorque virus...
May 5, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28468798/plasmacytoid-and-conventional-dendritic-cells-cooperate-in-cross-priming-aav-capsid-specific-cd8-t-cells
#16
Geoffrey L Rogers, Jamie L Shirley, Irene Zolotukhin, Sandeep R P Kumar, Alexandra Sherman, George Q Perrin, Brad E Hoffman, Arun Srivastava, Etiena Basner-Tschakarjan, Mark A Wallet, Cox Terhorst, Moanaro Biswas, Roland W Herzog
Adeno-associated virus (AAV) is a replication-deficient parvovirus that is extensively used as a gene therapy vector. CD8(+) T cell responses against the AAV capsid protein can, however, affect therapeutic efficacy. Little is known about the in vivo mechanism that leads to the cross-priming of CD8(+) T cells against the input viral capsid antigen. Here we report that the TLR9-MyD88 pattern-recognition receptor pathway is uniquely capable of initiating this response. By contrast, the absence of TLR2, STING, or addition of TLR4 agonist has no effect...
May 3, 2017: Blood
https://www.readbyqxmd.com/read/28466045/first-report-of-detection-and-molecular-characterization-of-porcine-parvovirus-in-domestic-and-wild-pigs-in-kerala-india
#17
J Aishwarya, Chintu Ravishankar, R Rajasekhar, K Sumod, Nimisha Bhaskar, Shiju Shaji, Koshy John, M Mini
Porcine parvovirus (PPV) is a DNA virus of the genus Parvovirus of family Parvoviridae. It is the causative agent of many disease problems in pigs such as maternal reproductive failure, stillbirth, mummification, embryonic or fetal death, infertility, abortion and neonatal death. A study was conducted to assess the incidence of the virus in pigs in Kerala State in South India. A total of 38 samples were collected from domestic and wild pigs from different districts of the State. Polymerase chain reaction targeting a 265 bp fragment of the NS1 gene of the virus was carried out...
September 2016: Virusdisease
https://www.readbyqxmd.com/read/28459842/phosphorylated-stat5-directly-facilitates-parvovirus-b19-dna-replication-in-human-erythroid-progenitors-through-interaction-with-the-mcm-complex
#18
Safder S Ganaie, Wei Zou, Peng Xu, Xuefeng Deng, Steve Kleiboeker, Jianming Qiu
Productive infection of human parvovirus B19 (B19V) exhibits high tropism for burst forming unit erythroid (BFU-E) and colony forming unit erythroid (CFU-E) progenitor cells in human bone marrow and fetal liver. This exclusive restriction of the virus replication to human erythroid progenitor cells is partly due to the intracellular factors that are essential for viral DNA replication, including erythropoietin signaling. Efficient B19V replication also requires hypoxic conditions, which upregulate the signal transducer and activator of transcription 5 (STAT5) pathway, and phosphorylated STAT5 is essential for virus replication...
May 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28459015/falciparum-malaria-and-parvovirus-b19-coinfection-a-rare-entity
#19
Rakesh Agarwal, Rashmi Baid, Rajarshi Datta, Manjari Saha, Nirmalendu Sarkar
No abstract text is available yet for this article.
January 2017: Tropical Parasitology
https://www.readbyqxmd.com/read/28450508/genome-sequence-of-a-goose-parvovirus-strain-isolated-from-an-ill-goose-in-china
#20
Peng Liu, Jinyue Zhang, Shun Chen, Mingshu Wang, Anchun Cheng
We report here the complete genome sequence of a goose parvovirus (GPV) strain, RC16, which was isolated from an ill goose in 2016 at Rongchang, Chongqing, China. The GPV strain RC16 isolated was passaged and identified, whose full-length genome is 5,046 nucleotides long.
April 27, 2017: Genome Announcements
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