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  1. Article ; Online: Complete genome sequence of avian bornavirus genotype 1 from a Macaw with proventricular dilatation disease.

    Mirhosseini, Negin / Gray, Patricia L / Tizard, Ian / Payne, Susan

    Journal of virology

    2012  Volume 86, Issue 12, Page(s) 7023

    Abstract: Avian bornaviruses (ABV) were first detected and described in 2008. They are the etiologic agents of proventricular dilatation disease (PDD), a frequently fatal neurologic disease of captive parrots. Seven ABV genogroups have been identified worldwide ... ...

    Abstract Avian bornaviruses (ABV) were first detected and described in 2008. They are the etiologic agents of proventricular dilatation disease (PDD), a frequently fatal neurologic disease of captive parrots. Seven ABV genogroups have been identified worldwide from a variety of sources, and that number may increase as surveillance for novel bornaviruses continues. Here, we report the first complete sequence of a genogroup 1 avian bornavirus (ABV1).
    MeSH term(s) Animals ; Base Sequence ; Bird Diseases/virology ; Bornaviridae/classification ; Bornaviridae/genetics ; Bornaviridae/isolation & purification ; Gastric Dilatation/veterinary ; Gastric Dilatation/virology ; Genome, Viral ; Genotype ; Molecular Sequence Data ; Parrots/virology ; Proventriculus/virology
    Language English
    Publishing date 2012-05-23
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80174-4
    ISSN 1098-5514 ; 0022-538X
    ISSN (online) 1098-5514
    ISSN 0022-538X
    DOI 10.1128/JVI.00762-12
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Proventricular dilatation disease in cockatiels (Nymphicus hollandicus) after infection with a genotype 2 avian bornavirus.

    Mirhosseini, Negin / Gray, Patricia L / Hoppes, Sharman / Tizard, Ian / Shivaprasad, H L / Payne, Susan

    Journal of avian medicine and surgery

    2011  Volume 25, Issue 3, Page(s) 199–204

    Abstract: An isolate of genotype 2 avian bornavirus (ABV) was recovered from a cockatiel (Nymphicus hollandicus) that was euthanatized for an unrelated lesion and showing no clinical evidence of proventricular dilatation disease (PDD). On histopathologic ... ...

    Abstract An isolate of genotype 2 avian bornavirus (ABV) was recovered from a cockatiel (Nymphicus hollandicus) that was euthanatized for an unrelated lesion and showing no clinical evidence of proventricular dilatation disease (PDD). On histopathologic examination, mild inflammatory lesions were present in the heart and brain, but gastrointestinal lesions characteristic of classic PDD were not observed. To investigate if this ABV2 isolate had reduced virulence, the virus was propagated in duck embryo fibroblasts and inoculated into 2 adult cockatiels by the oral and intramuscular routes. One bird developed clinical signs on day 33 and was euthanatized on day 36. The second challenged bird developed clinical signs on day 41 and was euthanatized on day 45. At necropsy, the proventriculus of both birds was slightly enlarged. Histopathologic examination showed lesions typical of PDD in the brain, spinal cord, heart, adrenal gland, and intestine. A control, uninoculated cockatiel was apparently healthy when euthanatized on day 50. These results show that ABV2 is now the second ABV genotype to be formally shown to cause PDD.
    MeSH term(s) Animals ; Bird Diseases/pathology ; Bird Diseases/virology ; Bornaviridae/classification ; Bornaviridae/genetics ; Brain/pathology ; Cockatoos ; Ganglia/pathology ; Genotype ; Mononegavirales Infections/pathology ; Mononegavirales Infections/veterinary ; Mononegavirales Infections/virology ; Proventriculus/pathology ; Stomach Diseases/pathology ; Stomach Diseases/veterinary ; Stomach Diseases/virology
    Language English
    Publishing date 2011-09
    Publishing country United States
    Document type Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2174190-6
    ISSN 1938-2871 ; 1082-6742
    ISSN (online) 1938-2871
    ISSN 1082-6742
    DOI 10.1647/2010-030.1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: The diagnosis of proventricular dilatation disease: use of a Western blot assay to detect antibodies against avian Borna virus.

    Villanueva, Itamar / Gray, Patricia / Mirhosseini, Negin / Payne, Susan / Hoppes, Sharman / Honkavuori, Kirsi S / Briese, Thomas / Turner, Debra / Tizard, Ian

    Veterinary microbiology

    2010  Volume 143, Issue 2-4, Page(s) 196–201

    Abstract: Avian Borna virus (ABV) has recently been shown to be the causal agent of proventricular dilatation disease (PDD) a lethal neurologic disease of captive psittacines and other birds. An immunoblot assay was used to detect the presence of antibodies ... ...

    Abstract Avian Borna virus (ABV) has recently been shown to be the causal agent of proventricular dilatation disease (PDD) a lethal neurologic disease of captive psittacines and other birds. An immunoblot assay was used to detect the presence of antibodies against avian Borna virus in the serum of affected birds. A lysate from ABV-infected duck embryo fibroblasts served as a source of antigen. The assay was used to test for the presence of antibodies to ABV in 117 birds. Thirty of these birds had biopsy or necropsy-confirmed proventricular dilatation disease (PDD), while the remaining 87 birds were apparently healthy or were suffering from diseases other than PDD. Sera from 27 of the 30 PDD cases (90%) contained antibodies to ABV. Seventy-three (84%) of the apparently "healthy" birds were seronegative. Additionally, sera from seven macaws and one parrot trapped in the Peruvian Amazon were seronegative. Positive sera recognized the bornaviral nucleoprotein (N-protein). While the presence of antibodies to ABV largely corresponded with the development of clinical PDD, 14 apparently healthy normal birds possessed detectable antibodies to ABV. The existence of a carrier state was confirmed when 13 of 15 apparently healthy cockatiels were shown by PCR to have detectable ABV RNA in their feces. Western blot assays may be of significant assistance in diagnosing proventricular dilatation disease. Many apparently healthy birds may however be seronegative while, at the same time, shedding ABV in their feces.
    MeSH term(s) Animals ; Antibodies, Viral/blood ; Bird Diseases/blood ; Bird Diseases/immunology ; Bird Diseases/virology ; Blotting, Western/veterinary ; Borna Disease/blood ; Borna Disease/diagnosis ; Borna disease virus/immunology ; Psittaciformes ; Sensitivity and Specificity ; Serologic Tests/veterinary
    Chemical Substances Antibodies, Viral
    Language English
    Publishing date 2010-07-14
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 753154-0
    ISSN 1873-2542 ; 0378-1135
    ISSN (online) 1873-2542
    ISSN 0378-1135
    DOI 10.1016/j.vetmic.2009.11.041
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2917: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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  4. Article: The diagnosis of proventricular dilatation disease: Use of a Western blot assay to detect antibodies against avian Borna virus

    Villanueva, Itamar / Gray, Patricia / Mirhosseini, Negin / Payne, Susan / Hoppes, Sharman / Honkavuori, Kirsi S / Briese, Thomas / Turner, Debra / Tizard, Ian

    Veterinary microbiology. 2010 July 14, v. 143, no. 2-4

    2010  

    Abstract: Avian Borna virus (ABV) has recently been shown to be the causal agent of proventricular dilatation disease (PDD) a lethal neurologic disease of captive psittacines and other birds. An immunoblot assay was used to detect the presence of antibodies ... ...

    Abstract Avian Borna virus (ABV) has recently been shown to be the causal agent of proventricular dilatation disease (PDD) a lethal neurologic disease of captive psittacines and other birds. An immunoblot assay was used to detect the presence of antibodies against avian Borna virus in the serum of affected birds. A lysate from ABV-infected duck embryo fibroblasts served as a source of antigen. The assay was used to test for the presence of antibodies to ABV in 117 birds. Thirty of these birds had biopsy or necropsy-confirmed proventricular dilatation disease (PDD), while the remaining 87 birds were apparently healthy or were suffering from diseases other than PDD. Sera from 27 of the 30 PDD cases (90%) contained antibodies to ABV. Seventy-three (84%) of the apparently “healthy” birds were seronegative. Additionally, sera from seven macaws and one parrot trapped in the Peruvian Amazon were seronegative. Positive sera recognized the bornaviral nucleoprotein (N-protein). While the presence of antibodies to ABV largely corresponded with the development of clinical PDD, 14 apparently healthy normal birds possessed detectable antibodies to ABV. The existence of a carrier state was confirmed when 13 of 15 apparently healthy cockatiels were shown by PCR to have detectable ABV RNA in their feces. Western blot assays may be of significant assistance in diagnosing proventricular dilatation disease. Many apparently healthy birds may however be seronegative while, at the same time, shedding ABV in their feces.
    Keywords Psittacidae ; parrots ; aviary birds ; bird diseases ; Borna disease ; Borna disease virus ; disease detection ; Western blotting ; antibody detection ; bioassays ; blood serum ; hematologic tests ; validity ; disease diagnosis ; central nervous system diseases ; etiology ; disease transmission ; carrier state
    Language English
    Dates of publication 2010-0714
    Size p. 196-201.
    Publishing place Amsterdam; New York: Elsevier
    Document type Article
    ZDB-ID 753154-0
    ISSN 1873-2542 ; 0378-1135
    ISSN (online) 1873-2542
    ISSN 0378-1135
    DOI 10.1016/j.vetmic.2009.11.041
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Use of avian bornavirus isolates to induce proventricular dilatation disease in conures.

    Gray, Patricia / Hoppes, Sharman / Suchodolski, Paulette / Mirhosseini, Negin / Payne, Susan / Villanueva, Itamar / Shivaprasad, H L / Honkavuori, Kirsi S / Lipkin, W Ian / Briese, Thomas / Reddy, Sanjay M / Tizard, Ian

    Emerging infectious diseases

    2010  Volume 16, Issue 3, Page(s) 473–479

    Abstract: Avian bornavirus (ABV) is a newly discovered member of the family Bornaviridae that has been associated with the development of a lethal neurologic syndrome in birds, termed proventricular dilatation disease (PDD). We successfully isolated and ... ...

    Abstract Avian bornavirus (ABV) is a newly discovered member of the family Bornaviridae that has been associated with the development of a lethal neurologic syndrome in birds, termed proventricular dilatation disease (PDD). We successfully isolated and characterized ABV from the brains of 8 birds with confirmed PDD. One isolate was passed 6 times in duck embryo fibroblasts, and the infected cells were then injected intramuscularly into 2 healthy Patagonian conures (Cyanoliseus patagonis). Clinical PDD developed in both birds by 66 days postinfection. PDD was confirmed by necropsy and histopathologic examination. Reverse transcription-PCR showed that the inoculated ABV was in the brains of the 2 infected birds. A control bird that received uninfected tissue culture cells remained healthy until it was euthanized at 77 days. Necropsy and histopathologic examinations showed no abnormalities; PCR did not indicate ABV in its brain tissues.
    MeSH term(s) Animals ; Bird Diseases/virology ; Bornaviridae/isolation & purification ; Bornaviridae/pathogenicity ; Cells, Cultured ; Dilatation, Pathologic ; Ducks/embryology ; Fibroblasts/virology ; Parrots/virology ; Proventriculus/pathology ; Proventriculus/physiopathology ; Proventriculus/virology
    Language English
    Publishing date 2010-03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1380686-5
    ISSN 1080-6059 ; 1080-6040
    ISSN (online) 1080-6059
    ISSN 1080-6040
    DOI 10.3201/eid1603.091257
    Database MEDical Literature Analysis and Retrieval System OnLINE

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