Morphological study of the hepatic tissue of Leporinus macrocephalus
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum Biological Sciences |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/157 |
Resumo: | The objective of this work was to analyze the liver of Leporinus macrocephalus at the macroscopic and histologic level by evaluating the characteristics of the hepatic tissue. The fishes from a fishery in Bauru, S.P., were collected and sacrificed by destroying the spinal cord; afterwards the collected hepatic tissue was fixed and followed by histological routine. Macroscopic analysis of L. macrocephalus liver showed an organ of homogeneous structure, with red-brown color, located in the medial region of the body, caudal to heart and after the gills. It showed 3 pyramidal lobes, one central and two lateral right and left. The histological analysis showed the hepatic tissue constituted by hepatocytes cords surrounded by sinusoids, named “muralium duplex”. It yet revealed the diffused, distribution bile system by hepatic parenchyma, showing ducts with simple cubic epithelium, surrounded by muscular fibres and connective tissue. Cells of the exocrine pancreatic tissue were observed surrounding blood vessels in acinar arrangement as zymogen granules. Furthermore, there are melanomacrophages centers distributed along the hepatic parenchyma, preferably next to the blood vessels, constituted by cells accumulating material, such as melanin and lipofucsin, whose presence may be related to the nutritional status of the fish |
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Morphological study of the hepatic tissue of Leporinus macrocephalusEstudo morfológico do tecido hepático de Leporinus macrocephalus - DOI: 10.4025/actascibiolsci.v29i1.157morfologiafígadoteleósteosLeporinus macrocephalusThe objective of this work was to analyze the liver of Leporinus macrocephalus at the macroscopic and histologic level by evaluating the characteristics of the hepatic tissue. The fishes from a fishery in Bauru, S.P., were collected and sacrificed by destroying the spinal cord; afterwards the collected hepatic tissue was fixed and followed by histological routine. Macroscopic analysis of L. macrocephalus liver showed an organ of homogeneous structure, with red-brown color, located in the medial region of the body, caudal to heart and after the gills. It showed 3 pyramidal lobes, one central and two lateral right and left. The histological analysis showed the hepatic tissue constituted by hepatocytes cords surrounded by sinusoids, named “muralium duplex”. It yet revealed the diffused, distribution bile system by hepatic parenchyma, showing ducts with simple cubic epithelium, surrounded by muscular fibres and connective tissue. Cells of the exocrine pancreatic tissue were observed surrounding blood vessels in acinar arrangement as zymogen granules. Furthermore, there are melanomacrophages centers distributed along the hepatic parenchyma, preferably next to the blood vessels, constituted by cells accumulating material, such as melanin and lipofucsin, whose presence may be related to the nutritional status of the fishO presente trabalho objetivou análise macroscópica e histológica do fígado de Leporinus macrocephalus para avaliar a estrutura do tecido hepático. Os peixes provenientes de um pesqueiro da região de Bauru, Estado de São Paulo, foram anestesiados, mortos, e os fígados foram retirados e encaminhados à rotina histológica, com inclusão em paraplast. A macroscopia mostrou um figado de estrutura homogênea, de coloração marron-avermelhada, localizado na região medial do corpo, caudalmente ao coração e posterior às brânquias, apresentando três lóbos de forma piramidal, sendo um central e dois laterais direito e esquerdo. A análise histológica revelou o tecido hepático constituído por cordões duplos de hepatócitos circundados por sinusóides, denominado de “muralha dupla”. Revelou, ainda, um sistema biliar disperso pelo parênquima hepático mostrando ductos com epitélio cúbico simples, circundado por fibras musculares e tecido conjuntivo. Células do tecido pancreático exócrino foram observadas, margeando vasos sangüíneos, organizando-se em ácinos apresentando grânulos de zimogênio. Além disso, existem centros melanomacrófagos distribuídos ao longo de todo parênquima, preferencialmente próximos aos vasos sanguíneos, formados por células que acumulam materiais como melanina e lipofucsina, podendo sua presença estar relacionada com o estado nutricional do peixeUniversidade Estadual De Maringá2007-11-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/15710.4025/actascibiolsci.v29i1.157Acta Scientiarum. Biological Sciences; Vol 29 No 1 (2007); 81-85Acta Scientiarum. Biological Sciences; v. 29 n. 1 (2007); 81-851807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/157/2723Bombonato, Maria Terezinha SiqueiraRochel, Sabrina SantosVicentini, Carlos AlbertoVicentini, Irene Bastos Franceschiniinfo:eu-repo/semantics/openAccess2022-11-23T17:32:52Zoai:periodicos.uem.br/ojs:article/157Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:32:52Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Morphological study of the hepatic tissue of Leporinus macrocephalus Estudo morfológico do tecido hepático de Leporinus macrocephalus - DOI: 10.4025/actascibiolsci.v29i1.157 |
title |
Morphological study of the hepatic tissue of Leporinus macrocephalus |
spellingShingle |
Morphological study of the hepatic tissue of Leporinus macrocephalus Bombonato, Maria Terezinha Siqueira morfologia fígado teleósteos Leporinus macrocephalus |
title_short |
Morphological study of the hepatic tissue of Leporinus macrocephalus |
title_full |
Morphological study of the hepatic tissue of Leporinus macrocephalus |
title_fullStr |
Morphological study of the hepatic tissue of Leporinus macrocephalus |
title_full_unstemmed |
Morphological study of the hepatic tissue of Leporinus macrocephalus |
title_sort |
Morphological study of the hepatic tissue of Leporinus macrocephalus |
author |
Bombonato, Maria Terezinha Siqueira |
author_facet |
Bombonato, Maria Terezinha Siqueira Rochel, Sabrina Santos Vicentini, Carlos Alberto Vicentini, Irene Bastos Franceschini |
author_role |
author |
author2 |
Rochel, Sabrina Santos Vicentini, Carlos Alberto Vicentini, Irene Bastos Franceschini |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Bombonato, Maria Terezinha Siqueira Rochel, Sabrina Santos Vicentini, Carlos Alberto Vicentini, Irene Bastos Franceschini |
dc.subject.por.fl_str_mv |
morfologia fígado teleósteos Leporinus macrocephalus |
topic |
morfologia fígado teleósteos Leporinus macrocephalus |
description |
The objective of this work was to analyze the liver of Leporinus macrocephalus at the macroscopic and histologic level by evaluating the characteristics of the hepatic tissue. The fishes from a fishery in Bauru, S.P., were collected and sacrificed by destroying the spinal cord; afterwards the collected hepatic tissue was fixed and followed by histological routine. Macroscopic analysis of L. macrocephalus liver showed an organ of homogeneous structure, with red-brown color, located in the medial region of the body, caudal to heart and after the gills. It showed 3 pyramidal lobes, one central and two lateral right and left. The histological analysis showed the hepatic tissue constituted by hepatocytes cords surrounded by sinusoids, named “muralium duplex”. It yet revealed the diffused, distribution bile system by hepatic parenchyma, showing ducts with simple cubic epithelium, surrounded by muscular fibres and connective tissue. Cells of the exocrine pancreatic tissue were observed surrounding blood vessels in acinar arrangement as zymogen granules. Furthermore, there are melanomacrophages centers distributed along the hepatic parenchyma, preferably next to the blood vessels, constituted by cells accumulating material, such as melanin and lipofucsin, whose presence may be related to the nutritional status of the fish |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-11-16 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/157 10.4025/actascibiolsci.v29i1.157 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/157 |
identifier_str_mv |
10.4025/actascibiolsci.v29i1.157 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/157/2723 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Biological Sciences; Vol 29 No 1 (2007); 81-85 Acta Scientiarum. Biological Sciences; v. 29 n. 1 (2007); 81-85 1807-863X 1679-9283 reponame:Acta Scientiarum Biological Sciences instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum Biological Sciences |
collection |
Acta Scientiarum Biological Sciences |
repository.name.fl_str_mv |
Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actabiol@uem.br |
_version_ |
1799317390580776960 |