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Proventricular dilatation disease

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https://www.readbyqxmd.com/read/27830736/viral-vector-vaccines-expressing-nucleoprotein-and-phosphoprotein-genes-of-avian-bornaviruses-ameliorate-homologous-challenge-infections-in-cockatiels-and-common-canaries
#1
Marita Olbert, Angela Römer-Oberdörfer, Christiane Herden, Sara Malberg, Solveig Runge, Peter Staeheli, Dennis Rubbenstroth
Avian bornaviruses are causative agents of proventricular dilatation disease (PDD), an often fatal disease of parrots and related species (order Psittaciformes) which is widely distributed in captive psittacine populations and may affect endangered species. Here, we established a vaccination strategy employing two different well described viral vectors, namely recombinant Newcastle disease virus (NDV) and modified vaccinia virus Ankara (MVA) that were engineered to express the phosphoprotein and nucleoprotein genes of two avian bornaviruses, parrot bornavirus 4 (PaBV-4) and canary bornavirus 2 (CnBV-2)...
November 10, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27537693/phylogenetic-analysis-supports-horizontal-transmission-as-a-driving-force-of-the-spread-of-avian-bornaviruses
#2
Dennis Rubbenstroth, Volker Schmidt, Monika Rinder, Marko Legler, Sönke Twietmeyer, Phillip Schwemmer, Victor M Corman
BACKGROUND: Avian bornaviruses are a genetically diverse group of viruses initially discovered in 2008. They are known to infect several avian orders. Bornaviruses of parrots and related species (Psittaciformes) are causative agents of proventricular dilatation disease, a chronic and often fatal neurologic disease widely distributed in captive psittacine populations. Although knowledge has considerably increased in the past years, many aspects of the biology of avian bornaviruses are still undiscovered...
2016: PloS One
https://www.readbyqxmd.com/read/27439314/synergistic-antiviral-activity-of-ribavirin-and-interferon-%C3%AE-against-parrot-bornaviruses-in-avian-cells
#3
Antje Reuter, Masayuki Horie, Dirk Höper, Annette Ohnemus, Andreas Narr, Monika Rinder, Martin Beer, Peter Staeheli, Dennis Rubbenstroth
Avian bornaviruses are the causative agents of proventricular dilatation disease (PDD), a widely distributed and often fatal disease in captive psittacines. Because neither specific prevention measures nor therapies against PDD and bornavirus infections are currently available, new antiviral strategies are required to improve animal health. We show here that the nucleoside analogue ribavirin inhibited bornavirus activity in a polymerase reconstitution assay and reduced viral load in avian cell lines infected with two different parrot bornaviruses...
September 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27309292/occurrence-of-bacterial-and-viral-pathogens-in-common-and-noninvasive-diagnostic-sampling-from-parrots-and-racing-pigeons-in-slovenia
#4
Alenka Dovč, Gregor Jereb, Uroš Krapež, Gordana Gregurić-Gračner, Štefan Pintarič, Brigita Slavec, Renata Lindtner Knific, Marjan Kastelic, Pavel Kvapil, Jasna Mićunović, Stanka Vadnjal, Matjaž Ocepek, Marko Zadravec, Olga Zorman-Rojs
Airborne pathogens can cause infections within parrot (Psittaciformes) and pigeon (Columbiformes) holdings and, in the case of zoonoses, can even spread to humans. Air sampling is a useful, noninvasive method which can enhance the common sampling methods for detection of microorganisms in bird flocks. In this study, fecal and air samples were taken from four parrot holdings. Additionally, cloacal and oropharyngeal swabs as well as air samples were taken from 15 racing pigeon holdings. Parrots were examined for psittacine beak and feather disease virus (PBFDV), proventricular dilatation disease virus (PDDV), adenoviruses (AdVs), avian paramyxovirus type-1 (APMV-1), avian influenza virus (AIV), Chlamydia psittaci (CP), and Mycobacterium avium complex (MAC)...
June 2016: Avian Diseases
https://www.readbyqxmd.com/read/27100150/parrot-bornavirus-pabv-2-isolate-causes-different-disease-patterns-in-cockatiels-than-pabv-4
#5
Anne K Piepenbring, Dirk Enderlein, Sibylle Herzog, Basim Al-Ibadi, Ursula Heffels-Redmann, Julia Heckmann, Hildburg Lange-Herbst, Christiane Herden, Michael Lierz
Psittaciform 1 bornavirus (PaBV) has already been shown to be the aetiologic agent of proventricular dilatation disease, a significant disease of birds. However, the pathogenesis of PaBV infection has not yet been resolved and valid data regarding the pathogenicity of different PaBV species are lacking. Thus, the present study was aimed to characterize the influence of two different PaBV species on the course of disease. Eighteen cockatiels were inoculated intracerebrally (i.c.) or intravenously (i.v.) with a PaBV-2 isolate under the same conditions as in a previous study using PaBV-4...
2016: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/26403158/the-genome-sequence-of-parrot-bornavirus-5
#6
Jianhua Guo, Ian Tizard
Although several new avian bornaviruses have recently been described, information on their evolution, virulence, and sequence are often limited. Here we report the complete genome sequence of parrot bornavirus 5 (PaBV-5) isolated from a case of proventricular dilatation disease in a Palm cockatoo (Probosciger aterrimus). The complete genome consists of 8842 nucleotides with distinct 5' and 3' end sequences. This virus shares nucleotide sequence identities of 69-74 % with other bornaviruses in the genomic regions excluding the 5' and 3' terminal sequences...
December 2015: Virus Genes
https://www.readbyqxmd.com/read/26346745/isolation-of-avian-bornaviruses-from-psittacine-birds-using-qt6-quail-cells-in-japan
#7
Masayuki Horie, Yukiko Sassa, Haruko Iki, Kazumasa Ebisawa, Hideto Fukushi, Tokuma Yanai, Keizo Tomonaga
Avian bornaviruses (ABVs) were recently discovered as the causative agents of proventricular dilatation disease (PDD). Although molecular epidemiological studies revealed that ABVs exist in Japan, no Japanese isolate has been reported thus far. In this study, we isolated four strains of Psittaciform 1 bornavirus from psittacine birds affected by PDD using QT6 quail cells. To our knowledge, this is the first report to isolate ABVs in Japan and to show that QT6 cells are available for ABV isolation. These isolates and QT6 cells would be powerful tools for elucidating the fundamental biology and pathogenicity of ABVs...
February 2016: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/26315330/parrot-bornavirus-2-and-4-rna-detected-in-wild-bird-samples-in-japan-are-phylogenetically-adjacent-to-those-found-in-pet-birds-in-japan
#8
Yukiko Sassa, Vuong Nghia Bui, Keisuke Saitoh, Yukiko Watanabe, Satoshi Koyama, Daiji Endoh, Masayuki Horie, Keizo Tomonaga, Tetsuya Furuya, Makoto Nagai, Tsutomu Omatsu, Kunitoshi Imai, Haruko Ogawa, Tetsuya Mizutani
Bornaviruses (family Bornaviridae) are non-segmented negative-strand RNA viruses. Avian bornaviruses (ABVs), which are causative agents of proventricular dilatation disease, are a genetically diverse group with at least 15 genotypes, including parrot bornaviruses (PaBVs) and aquatic bird bornavirus 1(ABBV-1). Borna disease virus 1(BoDV-1), which infects mammals and causes neurological diseases, has also been reported to infect avian species, although the numbers of the cases have been markedly fewer than those of ABVs...
October 2015: Virus Genes
https://www.readbyqxmd.com/read/26282234/coding-complete-sequencing-classifies-parrot-bornavirus-5-into-a-novel-virus-species
#9
Szilvia Marton, Krisztián Bányai, János Gál, Katalin Ihász, Renáta Kugler, György Lengyel, Ferenc Jakab, Tamás Bakonyi, Szilvia L Farkas
In this study, we determined the sequence of the coding region of an avian bornavirus detected in a blue-and-yellow macaw (Ara ararauna) with pathological/histopathological changes characteristic of proventricular dilatation disease. The genomic organization of the macaw bornavirus is similar to that of other bornaviruses, and its nucleotide sequence is nearly identical to the available partial parrot bornavirus 5 (PaBV-5) sequences. Phylogenetic analysis showed that these strains formed a monophyletic group distinct from other mammalian and avian bornaviruses and in calculations performed with matrix protein coding sequences, the PaBV-5 and PaBV-6 genotypes formed a common cluster, suggesting that according to the recently accepted classification system for bornaviruses, these two genotypes may belong to a new species, provisionally named Psittaciform 2 bornavirus...
November 2015: Archives of Virology
https://www.readbyqxmd.com/read/26222794/ribavirin-inhibits-parrot-bornavirus-4-replication-in-cell-culture
#10
Jeffrey M B Musser, J Jill Heatley, Anastasia V Koinis, Paulette F Suchodolski, Jianhua Guo, Paulina Escandon, Ian R Tizard
Parrot bornavirus 4 is an etiological agent of proventricular dilatation disease, a fatal neurologic and gastrointestinal disease of psittacines and other birds. We tested the ability of ribavirin, an antiviral nucleoside analog with antiviral activity against a range of RNA and DNA viruses, to inhibit parrot bornavirus 4 replication in duck embryonic fibroblast cells. Two analytical methods that evaluate different products of viral replication, indirect immunocytochemistry for viral specific nucleoprotein and qRT-PCR for viral specific phosphoprotein gene mRNA, were used...
2015: PloS One
https://www.readbyqxmd.com/read/25992258/concurrent-atypical-diffused-tuberculosis-and-macrorhabdosis-in-a-canary-serinus-canaria
#11
Seyed Ahmad Madani, Mohammad Reza Haddad-Marandi, Fatemeh Arabkhazaeli
A dead canary from a mixed species zoological garden was presented for diagnostic necropsy. Cachexia with prominent atrophy of pectoral muscles, yellowish brown discoloration of the liver and kidney, dark brown to black intestinal contents and moderate proventricular dilatation with some degree of catarrhal gastritis were the significant macroscopic findings. Parenchymatous organs like the liver, the spleen, the lung and the kidneys were extremely affected by massive diffuse necrosis and heavy infiltration of mononuclear inflammatory cells, histopathologically...
2015: Veterinary Research Forum
https://www.readbyqxmd.com/read/25465670/survey-of-bornaviruses-in-pet-psittacines-in-brazil-reveals-a-novel-parrot-bornavirus
#12
Natalia A Philadelpho, Dennis Rubbenstroth, Marta B Guimarães, Antonio J Piantino Ferreira
Avian bornaviruses are the causative agents of proventricular dilatation disease (PDD), a fatal neurological disease considered to be a major threat to psittacine bird populations. We performed a survey of the presence of avian bornaviruses and PDD in pet psittacines in Brazil and also studied PDD's clinical presentation as well as the genomic variability of the viruses. Samples from 112 psittacines with clinical signs compatible with PDD were collected and tested for the presence of bornaviruses. We found 32 birds (28...
December 5, 2014: Veterinary Microbiology
https://www.readbyqxmd.com/read/25417715/avian-bornavirus-in-free-ranging-psittacine-birds-brazil
#13
Nuri Encinas-Nagel, Dirk Enderlein, Anne Piepenbring, Christiane Herden, Ursula Heffels-Redmann, Paulo A N Felippe, Clarice Arns, Hafez M Hafez, Michael Lierz
Avian bornavirus (ABV) has been identified as the cause of proventricular dilatation disease in birds, but the virus is also found in healthy birds. Most studies of ABV have focused on captive birds. We investigated 86 free-ranging psittacine birds in Brazil and found evidence for natural, long-term ABV infection.
December 2014: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/25135010/impact-of-antigenic-diversity-on-laboratory-diagnosis-of-avian-bornavirus-infections-in-birds
#14
Vanessa Zimmermann, Monika Rinder, Bernd Kaspers, Peter Staeheli, Dennis Rubbenstroth
Avian bornaviruses (ABVs) are a group of genetically diverse viruses within the Bornaviridae family that can infect numerous avian species and represent the causative agents of proventricular dilatation disease, an often fatal disease that is widely distributed in captive populations of parrots and related species. The current study was designed to assess the antigenic variability of the family Bornaviridae and to determine its impact on ABV diagnosis by employing fluorescent antibody assays. It was shown that polyclonal rabbit sera directed against recombinant bornavirus nucleoprotein, X protein, phosphoprotein, and matrix protein provided sufficient cross-reactivity for the detection of viral antigen from a broad range of bornavirus genotypes grown in cell culture...
November 2014: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/24933163/no-contact-transmission-of-avian-bornavirus-in-experimentally-infected-cockatiels-nymphicus-hollandicus-and-domestic-canaries-serinus-canaria-forma-domestica
#15
Dennis Rubbenstroth, Katrin Brosinski, Monika Rinder, Marita Olbert, Bernd Kaspers, Rüdiger Korbel, Peter Staeheli
Avian bornaviruses (ABV) are the causative agents of proventricular dilatation disease (PDD), a widely distributed disease of parrots. Distinct ABV lineages were also found in various non-psittacine avian species, such as canaries, but the pathogenic role of ABV in these species is less clear. Despite the wide distribution of ABV in captive parrots and canaries, its mode of transmission is poorly understood: both horizontal transmission via the urofaecal-oral route and vertical transmission are discussed to play a role...
August 6, 2014: Veterinary Microbiology
https://www.readbyqxmd.com/read/24758135/fatal-proventricular-dilatation-disease-in-captive-native-psittacines-in-brazil
#16
Rogério Venâncio Donatti, Maurício Resende, Francisco Carlos Júnior Ferreira, Marcus Vinícius Romero Marques, Roselene Ecco, H L Shivaprasad, José Sérgio de Resende, Nelson Rodrigo da Silva Martins
An outbreak of proventricular dilatation disease (PDD), a fatal inflammatory disease of psittacines (Aves: Psittaciformes), is described in native Brazilian psittacines. Twenty captive psittacines that died of suspected PDD were necropsied and 10 were submitted to histopathology, reverse transcriptase PCR (RT-PCR), and immunohistochemistry (IHC) for avian bornavirus (ABV). Examined species were one pileated parrot (Pionopsitta pileata), three vinaceous-breasted parrots (Amazona vinacea), two blue-winged macaws (Primolius maracana), one scarlet macaw (Ara macao), one chestnut-fronted macaw (Ara severa), one scaly-headed parrot (Pionus maximiliani), and one red-browed Amazon parrot (Amazona rhodocorytha)...
March 2014: Avian Diseases
https://www.readbyqxmd.com/read/24518276/detection-of-avian-bornavirus-in-multiple-tissues-of-infected-psittacine-birds-using-real-time-reverse-transcription-polymerase-chain-reaction
#17
Pauline Delnatte, Matthew Mak, Davor Ojkic, Raj Raghav, Josepha DeLay, Dale A Smith
Avian bornavirus (ABV), the cause of proventricular dilation disease in psittacine birds, has been detected in multiple tissues of infected birds using immunohistochemical staining (IHC) and reverse transcription polymerase chain reaction (RT-PCR). In the current study, real-time RT-PCR, using primers targeting the ABV matrix gene, was used to detect ABV in 146 tissues from 7 ABV-infected psittacine birds. Eighty-six percent of the samples tested positive, with crossing point values ranging from 13.82 to 37...
March 2014: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/24480411/borna-disease-virus-infection-in-cats
#18
REVIEW
Jonas Johansson Wensman, Karin Hultin Jäderlund, Bodil Ström Holst, Mikael Berg
Bornaviruses are known to cause neurological disorders in a number of animal species. Avian Bornavirus (ABV) causes proventricular dilatation disease (PDD) in birds and Borna disease virus (BDV) causes Borna disease in horses and sheep. BDV also causes staggering disease in cats, characterised by ataxia, behavioural changes and loss of postural reactions. BDV-infection markers in cats have been reported throughout the world. This review summarizes the current knowledge of Borna disease viruses in cats, including etiological agent, clinical signs, pathogenesis, epidemiology and diagnostics, with comparisons to Bornavirus infections in other species...
August 2014: Veterinary Journal
https://www.readbyqxmd.com/read/24389254/discovery-of-a-new-avian-bornavirus-genotype-in-estrildid-finches-estrildidae-in-germany
#19
Dennis Rubbenstroth, Volker Schmidt, Monika Rinder, Marko Legler, Victor Max Corman, Peter Staeheli
Avian bornaviruses (ABV) are known to be the causative agent of proventricular dilatation disease (PDD) in parrots and their relatives (Psittaciformes). A broad range of ABV genotypes has been detected not only in psittacine birds, but also in other avian species including canary birds (Serinus canaria forma domestica) and Bengalese finches (Lonchura striata f. dom.), which are both members of the order songbirds (Passeriformes). During this study 286 samples collected from captive and wild birds of various passerine species in different parts of Germany were screened for the presence of ABV...
January 31, 2014: Veterinary Microbiology
https://www.readbyqxmd.com/read/24153231/-bornaviruses
#20
REVIEW
Keizo Tomonaga
Bornaviridae is an enveloped animal virus carrying an 8.9 kb non-segmented, negative-strand RNA genome. The genus bornavirus contains two members infecting vertebrates, Borna disease virus (BDV) and avian bornavirus (ABV), which could preferably infect the nervous systems. BDV causes classical Borna disease, a progressive meningoencephalomyelitis, in horses and sheep, and ABV is known to induce proventricular dilatation disease, a fatal disease characterized by a lymphocytic, plasmacytic inflammation of central and peripheral nervous tissues, in multiple avian species...
2012: Uirusu
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