Morphological and morphometric features of nematode-cysts in Gymnotus inaequilabiatus liver in the Brazilian Pantanal
Autor(a) principal: | |
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Data de Publicação: | 2017 |
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=S1984-29612017000300285 |
Resumo: | Abstract The aim of this study was to determine the morphometric measures and morphological aspects of nematode-cysts in Gymnotus inaequilabiatus, and the presence of melanomacrophage centers (MMCs) associated with the periphery of cysts and in the liver parenchyma. Adult specimens, 34 female (123.1 ± 43.9g) and 45 male (135.5 ± 43.4g), from Paraguay River, Corumbá, Brazil, were used. The number of nematode-cysts was determined in 79 livers and 25 of them randomly selected for histopathological analysis and morphometric measures of nematode-cysts (mean diameter, thickness of collagen layer, and cyst-wall layer). The percentage of cysts with MMCs on the periphery and density in the liver parenchyma was estimated. The average number of macroscopic cysts was of 48.7 ± 2.78. Granulomatous reaction was observed surrounding the cysts. Diameter, collagen layer and cyst-wall measurements were 293.0 ± 75.18 (µm), 17.72 ± 6.01 (µm) and 12.21 ± 9.51 (µm), respectively. The number of nematode-cysts was correlated with hepatosomatic index, (r=0.26, P<0.05). Collagen layer was correlated with cyst diameter (r=0.62, P<0.01). Pericystic and parenchymatous MMCs were moderately (r=0.48) and highly (r=0.90) correlated with nematode-cysts number. Morphological characteristics of hepatic tissue and cysts-nematodes measures suggest that G. inaequilabiatus acts as a paratenic host to nematodes in the larval stage. |
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Morphological and morphometric features of nematode-cysts in Gymnotus inaequilabiatus liver in the Brazilian PantanalBrevimulticaecum sp.GymnotiformesnematodamelanomacrophagesAbstract The aim of this study was to determine the morphometric measures and morphological aspects of nematode-cysts in Gymnotus inaequilabiatus, and the presence of melanomacrophage centers (MMCs) associated with the periphery of cysts and in the liver parenchyma. Adult specimens, 34 female (123.1 ± 43.9g) and 45 male (135.5 ± 43.4g), from Paraguay River, Corumbá, Brazil, were used. The number of nematode-cysts was determined in 79 livers and 25 of them randomly selected for histopathological analysis and morphometric measures of nematode-cysts (mean diameter, thickness of collagen layer, and cyst-wall layer). The percentage of cysts with MMCs on the periphery and density in the liver parenchyma was estimated. The average number of macroscopic cysts was of 48.7 ± 2.78. Granulomatous reaction was observed surrounding the cysts. Diameter, collagen layer and cyst-wall measurements were 293.0 ± 75.18 (µm), 17.72 ± 6.01 (µm) and 12.21 ± 9.51 (µm), respectively. The number of nematode-cysts was correlated with hepatosomatic index, (r=0.26, P<0.05). Collagen layer was correlated with cyst diameter (r=0.62, P<0.01). Pericystic and parenchymatous MMCs were moderately (r=0.48) and highly (r=0.90) correlated with nematode-cysts number. Morphological characteristics of hepatic tissue and cysts-nematodes measures suggest that G. inaequilabiatus acts as a paratenic host to nematodes in the larval stage.Colégio Brasileiro de Parasitologia Veterinária2017-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612017000300285Revista Brasileira de Parasitologia Veterinária v.26 n.3 2017reponame:Revista Brasileira de Parasitologia Veterinária (Online)instname:Colégio Brasileiro de Parasitologia Veterinária (CBPV)instacron:CBPV10.1590/s1984-29612017044info:eu-repo/semantics/openAccessGalindo,Gizela MelinaRodrigues,Robson AndradeMarcondes,Sandriely FernandaSoares,PriscillaTavares,Luiz Eduardo RolandFernandes,Carlos Euricoeng2017-09-29T00:00:00Zoai:scielo:S1984-29612017000300285Revistahttp://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:2017-09-29T00:00Revista Brasileira de Parasitologia Veterinária (Online) - Colégio Brasileiro de Parasitologia Veterinária (CBPV)false |
dc.title.none.fl_str_mv |
Morphological and morphometric features of nematode-cysts in Gymnotus inaequilabiatus liver in the Brazilian Pantanal |
title |
Morphological and morphometric features of nematode-cysts in Gymnotus inaequilabiatus liver in the Brazilian Pantanal |
spellingShingle |
Morphological and morphometric features of nematode-cysts in Gymnotus inaequilabiatus liver in the Brazilian Pantanal Galindo,Gizela Melina Brevimulticaecum sp. Gymnotiformes nematoda melanomacrophages |
title_short |
Morphological and morphometric features of nematode-cysts in Gymnotus inaequilabiatus liver in the Brazilian Pantanal |
title_full |
Morphological and morphometric features of nematode-cysts in Gymnotus inaequilabiatus liver in the Brazilian Pantanal |
title_fullStr |
Morphological and morphometric features of nematode-cysts in Gymnotus inaequilabiatus liver in the Brazilian Pantanal |
title_full_unstemmed |
Morphological and morphometric features of nematode-cysts in Gymnotus inaequilabiatus liver in the Brazilian Pantanal |
title_sort |
Morphological and morphometric features of nematode-cysts in Gymnotus inaequilabiatus liver in the Brazilian Pantanal |
author |
Galindo,Gizela Melina |
author_facet |
Galindo,Gizela Melina Rodrigues,Robson Andrade Marcondes,Sandriely Fernanda Soares,Priscilla Tavares,Luiz Eduardo Roland Fernandes,Carlos Eurico |
author_role |
author |
author2 |
Rodrigues,Robson Andrade Marcondes,Sandriely Fernanda Soares,Priscilla Tavares,Luiz Eduardo Roland Fernandes,Carlos Eurico |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Galindo,Gizela Melina Rodrigues,Robson Andrade Marcondes,Sandriely Fernanda Soares,Priscilla Tavares,Luiz Eduardo Roland Fernandes,Carlos Eurico |
dc.subject.por.fl_str_mv |
Brevimulticaecum sp. Gymnotiformes nematoda melanomacrophages |
topic |
Brevimulticaecum sp. Gymnotiformes nematoda melanomacrophages |
description |
Abstract The aim of this study was to determine the morphometric measures and morphological aspects of nematode-cysts in Gymnotus inaequilabiatus, and the presence of melanomacrophage centers (MMCs) associated with the periphery of cysts and in the liver parenchyma. Adult specimens, 34 female (123.1 ± 43.9g) and 45 male (135.5 ± 43.4g), from Paraguay River, Corumbá, Brazil, were used. The number of nematode-cysts was determined in 79 livers and 25 of them randomly selected for histopathological analysis and morphometric measures of nematode-cysts (mean diameter, thickness of collagen layer, and cyst-wall layer). The percentage of cysts with MMCs on the periphery and density in the liver parenchyma was estimated. The average number of macroscopic cysts was of 48.7 ± 2.78. Granulomatous reaction was observed surrounding the cysts. Diameter, collagen layer and cyst-wall measurements were 293.0 ± 75.18 (µm), 17.72 ± 6.01 (µm) and 12.21 ± 9.51 (µm), respectively. The number of nematode-cysts was correlated with hepatosomatic index, (r=0.26, P<0.05). Collagen layer was correlated with cyst diameter (r=0.62, P<0.01). Pericystic and parenchymatous MMCs were moderately (r=0.48) and highly (r=0.90) correlated with nematode-cysts number. Morphological characteristics of hepatic tissue and cysts-nematodes measures suggest that G. inaequilabiatus acts as a paratenic host to nematodes in the larval stage. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-01 |
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=S1984-29612017000300285 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612017000300285 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1984-29612017044 |
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.26 n.3 2017 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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1754208916975124480 |