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Filamentous intranuclear inclusion bodies in psittacine birds. A structural and ultrastructural study.

Scarlata, E, Salguero, JJ, Hervás, J, Chacon, F, De Lara, M, Jahn, J and Gómez-Villamandos, JC (1999) Filamentous intranuclear inclusion bodies in psittacine birds. A structural and ultrastructural study. Zentralbl Veterinarmed B, 46 (6). pp. 375-380.

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This paper concerns a disease affecting a group of African grey parrots, which involves intranuclear inclusion bodies composed of filamentous material. The disease was characterized by either sudden death or death within 2-3 days from onset of non-specific symptoms. At necropsy, gross lesions included enlarged liver, mild hepatic congestion and focal necrosis. Samples from five birds were fixed in 10% formol and routinely processed for light and electron microscopy. In four birds, numerous hepatocytes displayed an enlarged nucleus, with peripheral margination of chromatin; the nucleus was partially or wholly filled by a basophilic inclusion body. In the remaining bird, inclusion bodies were acidophilic and completely filled the nucleus; nuclear enlargement was less evident than in the other birds. At ultrastructural examination, and in both types of IIB, nuclei contained looped filaments but no evidence of viral structures. However, virion-like structures were observed in the cytoplasm of some hepatocytes.

Item Type: Article
Authors :
Scarlata, E
Salguero, JJ
Hervás, J
Chacon, F
De Lara, M
Jahn, J
Gómez-Villamandos, JC
Date : August 1999
Uncontrolled Keywords : Animals, Bird Diseases, Disease Outbreaks, Escherichia coli Infections, Hepatitis, Animal, Inclusion Bodies, Kidney, Liver, Microscopy, Electron, Parrots, Pasteurella Infections, Virion
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 10:09
Last Modified : 17 May 2017 10:09

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