Comparative morphometric evaluation of hepatic hemosiderosis in wild Magellanic penguins (Spheniscus magellanicus) infected with different Plasmodium spp. subgenera
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Parasitologia Veterinária (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000100068 |
Resumo: | Abstract Avian malaria is one of the most important diseases of captive penguins. We employed morphometric techniques to evaluate hepatic hemosiderosis in rehabilitating wild Magellanic penguins (Spheniscus magellanicus) that were negative (n = 9) or naturally infected by different subgenera of Plasmodium spp. (n = 24), according with: Plasmodium subgenera (Haemamoeba, Huffia, Other lineages, and Unidentified lineages), severity of Plasmodium histopathological lesions, and concurrent diseases, age class (juvenile or adult plumage), sex (male, female or not determined), body score (emaciated, thin, good, excellent, not available), molt, presence or absence of oil contamination upon admission, iron supplementation, and rehabilitation center. The percentage of the area occupied by hemosiderin was called ‘Index of Hepatic Hemosiderosis (IHH)’. Plasmodium-positive females presented significantly higher IHH values (17.53 ± 12.95%) than males (7.20 ± 4.25%; p = 0.041). We observed higher levels of congestion (p = 0.0182) and pneumonia (p = 0.0250) severity between Unidentified lineages vs. Huffia. We believe that the hepatic hemosiderosis observed in this study was multifactorial, the result of pathological processes caused by malaria, molting, hemoglobin and myoglobin catabolism during migration, anemia, concomitant diseases, and iron supplementation, all possibly potentiated by decreased liver mass. Further studies are needed to clarify the mechanisms of these hypotheses. |
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Comparative morphometric evaluation of hepatic hemosiderosis in wild Magellanic penguins (Spheniscus magellanicus) infected with different Plasmodium spp. subgeneraAvian malariaironhemosiderinlivermorphometrypenguinAbstract Avian malaria is one of the most important diseases of captive penguins. We employed morphometric techniques to evaluate hepatic hemosiderosis in rehabilitating wild Magellanic penguins (Spheniscus magellanicus) that were negative (n = 9) or naturally infected by different subgenera of Plasmodium spp. (n = 24), according with: Plasmodium subgenera (Haemamoeba, Huffia, Other lineages, and Unidentified lineages), severity of Plasmodium histopathological lesions, and concurrent diseases, age class (juvenile or adult plumage), sex (male, female or not determined), body score (emaciated, thin, good, excellent, not available), molt, presence or absence of oil contamination upon admission, iron supplementation, and rehabilitation center. The percentage of the area occupied by hemosiderin was called ‘Index of Hepatic Hemosiderosis (IHH)’. Plasmodium-positive females presented significantly higher IHH values (17.53 ± 12.95%) than males (7.20 ± 4.25%; p = 0.041). We observed higher levels of congestion (p = 0.0182) and pneumonia (p = 0.0250) severity between Unidentified lineages vs. Huffia. We believe that the hepatic hemosiderosis observed in this study was multifactorial, the result of pathological processes caused by malaria, molting, hemoglobin and myoglobin catabolism during migration, anemia, concomitant diseases, and iron supplementation, all possibly potentiated by decreased liver mass. Further studies are needed to clarify the mechanisms of these hypotheses.Colégio Brasileiro de Parasitologia Veterinária2019-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000100068Revista Brasileira de Parasitologia Veterinária v.28 n.1 2019reponame:Revista Brasileira de Parasitologia Veterinária (Online)instname:Colégio Brasileiro de Parasitologia Veterinária (CBPV)instacron:CBPV10.1590/s1984-296120180092info:eu-repo/semantics/openAccessEwbank,Ana CarolinaStrefezzi,Ricardo de FranciscoSacristán,CarlosKolesnikovas,Cristiane Kiyomi MiyajiMartins,AryseMayorga,Luis Felipe Silva PereiraVanstreels,Ralph Eric ThijlCatão-Dias,José Luizeng2020-01-28T00:00:00Zoai:scielo:S1984-29612019000100068Revistahttp://www.scielo.br/scielo.php?script=sci_serial&lng=pt&pid=1984-2961https://old.scielo.br/oai/scielo-oai.php||zacariascbpv@fcav.unesp.br1984-29610103-846Xopendoar:2020-01-28T00:00Revista Brasileira de Parasitologia Veterinária (Online) - Colégio Brasileiro de Parasitologia Veterinária (CBPV)false |
dc.title.none.fl_str_mv |
Comparative morphometric evaluation of hepatic hemosiderosis in wild Magellanic penguins (Spheniscus magellanicus) infected with different Plasmodium spp. subgenera |
title |
Comparative morphometric evaluation of hepatic hemosiderosis in wild Magellanic penguins (Spheniscus magellanicus) infected with different Plasmodium spp. subgenera |
spellingShingle |
Comparative morphometric evaluation of hepatic hemosiderosis in wild Magellanic penguins (Spheniscus magellanicus) infected with different Plasmodium spp. subgenera Ewbank,Ana Carolina Avian malaria iron hemosiderin liver morphometry penguin |
title_short |
Comparative morphometric evaluation of hepatic hemosiderosis in wild Magellanic penguins (Spheniscus magellanicus) infected with different Plasmodium spp. subgenera |
title_full |
Comparative morphometric evaluation of hepatic hemosiderosis in wild Magellanic penguins (Spheniscus magellanicus) infected with different Plasmodium spp. subgenera |
title_fullStr |
Comparative morphometric evaluation of hepatic hemosiderosis in wild Magellanic penguins (Spheniscus magellanicus) infected with different Plasmodium spp. subgenera |
title_full_unstemmed |
Comparative morphometric evaluation of hepatic hemosiderosis in wild Magellanic penguins (Spheniscus magellanicus) infected with different Plasmodium spp. subgenera |
title_sort |
Comparative morphometric evaluation of hepatic hemosiderosis in wild Magellanic penguins (Spheniscus magellanicus) infected with different Plasmodium spp. subgenera |
author |
Ewbank,Ana Carolina |
author_facet |
Ewbank,Ana Carolina Strefezzi,Ricardo de Francisco Sacristán,Carlos Kolesnikovas,Cristiane Kiyomi Miyaji Martins,Aryse Mayorga,Luis Felipe Silva Pereira Vanstreels,Ralph Eric Thijl Catão-Dias,José Luiz |
author_role |
author |
author2 |
Strefezzi,Ricardo de Francisco Sacristán,Carlos Kolesnikovas,Cristiane Kiyomi Miyaji Martins,Aryse Mayorga,Luis Felipe Silva Pereira Vanstreels,Ralph Eric Thijl Catão-Dias,José Luiz |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Ewbank,Ana Carolina Strefezzi,Ricardo de Francisco Sacristán,Carlos Kolesnikovas,Cristiane Kiyomi Miyaji Martins,Aryse Mayorga,Luis Felipe Silva Pereira Vanstreels,Ralph Eric Thijl Catão-Dias,José Luiz |
dc.subject.por.fl_str_mv |
Avian malaria iron hemosiderin liver morphometry penguin |
topic |
Avian malaria iron hemosiderin liver morphometry penguin |
description |
Abstract Avian malaria is one of the most important diseases of captive penguins. We employed morphometric techniques to evaluate hepatic hemosiderosis in rehabilitating wild Magellanic penguins (Spheniscus magellanicus) that were negative (n = 9) or naturally infected by different subgenera of Plasmodium spp. (n = 24), according with: Plasmodium subgenera (Haemamoeba, Huffia, Other lineages, and Unidentified lineages), severity of Plasmodium histopathological lesions, and concurrent diseases, age class (juvenile or adult plumage), sex (male, female or not determined), body score (emaciated, thin, good, excellent, not available), molt, presence or absence of oil contamination upon admission, iron supplementation, and rehabilitation center. The percentage of the area occupied by hemosiderin was called ‘Index of Hepatic Hemosiderosis (IHH)’. Plasmodium-positive females presented significantly higher IHH values (17.53 ± 12.95%) than males (7.20 ± 4.25%; p = 0.041). We observed higher levels of congestion (p = 0.0182) and pneumonia (p = 0.0250) severity between Unidentified lineages vs. Huffia. We believe that the hepatic hemosiderosis observed in this study was multifactorial, the result of pathological processes caused by malaria, molting, hemoglobin and myoglobin catabolism during migration, anemia, concomitant diseases, and iron supplementation, all possibly potentiated by decreased liver mass. Further studies are needed to clarify the mechanisms of these hypotheses. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000100068 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000100068 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1984-296120180092 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Colégio Brasileiro de Parasitologia Veterinária |
publisher.none.fl_str_mv |
Colégio Brasileiro de Parasitologia Veterinária |
dc.source.none.fl_str_mv |
Revista Brasileira de Parasitologia Veterinária v.28 n.1 2019 reponame:Revista Brasileira de Parasitologia Veterinária (Online) instname:Colégio Brasileiro de Parasitologia Veterinária (CBPV) instacron:CBPV |
instname_str |
Colégio Brasileiro de Parasitologia Veterinária (CBPV) |
instacron_str |
CBPV |
institution |
CBPV |
reponame_str |
Revista Brasileira de Parasitologia Veterinária (Online) |
collection |
Revista Brasileira de Parasitologia Veterinária (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Parasitologia Veterinária (Online) - Colégio Brasileiro de Parasitologia Veterinária (CBPV) |
repository.mail.fl_str_mv |
||zacariascbpv@fcav.unesp.br |
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1754208917993291776 |