Ultrastructure of the adrenal gland of paca (Cuniculus paca, Linnaeus, 1766) in captivity
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.21708/AVB.2021.15.3.8901 http://hdl.handle.net/11449/229756 |
Resumo: | Lowland paca (Cuniculus paca, Linnaeus, 1766) is a medium-sized rodent that belongs to the Brazilian fauna. Yet little information on its morphology is found in the specialized literature. Thus, the objective of the work was to study the morphology of the adrenal gland of paca by means of microscopic ultrastructure analysis. The adrenal gland secretes specialized substances in the body which promote biological functions of great importance and will provide valuable information to studies in comparative anatomy. Two (2) adult lowland pacas were used, male and female. Soon after death, the animals were positioned in the supine position; their abdominal cavities were opened by pre-retro umbilical and lateral incision followed by folding of the abdominal walls to expose the glands. The adrenal glands were removed; fragments were collected, fixed and prepared for ultrastructure observations using scanning electron microscopy and transmission electron microscopy techniques. It was observed that the adrenal glands of the paca have divisions as well as the limits of the cortical and medullary region, as well as the subdivisions of the glomerulosa, fasciculated and reticulated areas of the cortical region as in other rodents. An ultrastructure of cells and their components also showed a lot of similarity to that already demonstrated in different rodents. |
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Ultrastructure of the adrenal gland of paca (Cuniculus paca, Linnaeus, 1766) in captivityUltraestrutura da glândula adrenal de paca (Cuniculus paca, Linnaeus, 1766) em cativeiroElectron microscopyRodentSuprarenalWild animalsLowland paca (Cuniculus paca, Linnaeus, 1766) is a medium-sized rodent that belongs to the Brazilian fauna. Yet little information on its morphology is found in the specialized literature. Thus, the objective of the work was to study the morphology of the adrenal gland of paca by means of microscopic ultrastructure analysis. The adrenal gland secretes specialized substances in the body which promote biological functions of great importance and will provide valuable information to studies in comparative anatomy. Two (2) adult lowland pacas were used, male and female. Soon after death, the animals were positioned in the supine position; their abdominal cavities were opened by pre-retro umbilical and lateral incision followed by folding of the abdominal walls to expose the glands. The adrenal glands were removed; fragments were collected, fixed and prepared for ultrastructure observations using scanning electron microscopy and transmission electron microscopy techniques. It was observed that the adrenal glands of the paca have divisions as well as the limits of the cortical and medullary region, as well as the subdivisions of the glomerulosa, fasciculated and reticulated areas of the cortical region as in other rodents. An ultrastructure of cells and their components also showed a lot of similarity to that already demonstrated in different rodents.Departamento de Medicina Veterinária Universidade Estadual de Maringá, PRDepartamento de Anatomia Universidade Estadual de Londrina, PRInstituto de Ciências Agrárias e Veterinária Universidade Federal dos Vales do Jequitinhonha e Mucuri, MGFaculdade de Medicina Veterinária e Zootecnia Universidade de São Paulo, SPDepartamento de Morfologia Animal Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, SPDepartamento de Morfologia Animal Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, SPUniversidade Estadual de Maringá (UEM)Universidade Estadual de Londrina (UEL)Universidade Federal dos Vales do Jequitinhonha e MucuriUniversidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)Filho, Sérgio Pinter GarciaMartins, Leandro LuisMarcusso, Paulo FernandesDe Castro Sasahara, Tais HarumiMachado, Márcia Rita Fernandes [UNESP]2022-04-29T08:35:38Z2022-04-29T08:35:38Z2021-09-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article203-208http://dx.doi.org/10.21708/AVB.2021.15.3.8901Acta Veterinaria Brasilica, v. 15, n. 3, p. 203-208, 2021.1981-5484http://hdl.handle.net/11449/22975610.21708/AVB.2021.15.3.89012-s2.0-85117530039Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengActa Veterinaria Brasilicainfo:eu-repo/semantics/openAccess2024-06-06T18:41:15Zoai:repositorio.unesp.br:11449/229756Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:32:48.151482Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ultrastructure of the adrenal gland of paca (Cuniculus paca, Linnaeus, 1766) in captivity Ultraestrutura da glândula adrenal de paca (Cuniculus paca, Linnaeus, 1766) em cativeiro |
title |
Ultrastructure of the adrenal gland of paca (Cuniculus paca, Linnaeus, 1766) in captivity |
spellingShingle |
Ultrastructure of the adrenal gland of paca (Cuniculus paca, Linnaeus, 1766) in captivity Filho, Sérgio Pinter Garcia Electron microscopy Rodent Suprarenal Wild animals |
title_short |
Ultrastructure of the adrenal gland of paca (Cuniculus paca, Linnaeus, 1766) in captivity |
title_full |
Ultrastructure of the adrenal gland of paca (Cuniculus paca, Linnaeus, 1766) in captivity |
title_fullStr |
Ultrastructure of the adrenal gland of paca (Cuniculus paca, Linnaeus, 1766) in captivity |
title_full_unstemmed |
Ultrastructure of the adrenal gland of paca (Cuniculus paca, Linnaeus, 1766) in captivity |
title_sort |
Ultrastructure of the adrenal gland of paca (Cuniculus paca, Linnaeus, 1766) in captivity |
author |
Filho, Sérgio Pinter Garcia |
author_facet |
Filho, Sérgio Pinter Garcia Martins, Leandro Luis Marcusso, Paulo Fernandes De Castro Sasahara, Tais Harumi Machado, Márcia Rita Fernandes [UNESP] |
author_role |
author |
author2 |
Martins, Leandro Luis Marcusso, Paulo Fernandes De Castro Sasahara, Tais Harumi Machado, Márcia Rita Fernandes [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Maringá (UEM) Universidade Estadual de Londrina (UEL) Universidade Federal dos Vales do Jequitinhonha e Mucuri Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Filho, Sérgio Pinter Garcia Martins, Leandro Luis Marcusso, Paulo Fernandes De Castro Sasahara, Tais Harumi Machado, Márcia Rita Fernandes [UNESP] |
dc.subject.por.fl_str_mv |
Electron microscopy Rodent Suprarenal Wild animals |
topic |
Electron microscopy Rodent Suprarenal Wild animals |
description |
Lowland paca (Cuniculus paca, Linnaeus, 1766) is a medium-sized rodent that belongs to the Brazilian fauna. Yet little information on its morphology is found in the specialized literature. Thus, the objective of the work was to study the morphology of the adrenal gland of paca by means of microscopic ultrastructure analysis. The adrenal gland secretes specialized substances in the body which promote biological functions of great importance and will provide valuable information to studies in comparative anatomy. Two (2) adult lowland pacas were used, male and female. Soon after death, the animals were positioned in the supine position; their abdominal cavities were opened by pre-retro umbilical and lateral incision followed by folding of the abdominal walls to expose the glands. The adrenal glands were removed; fragments were collected, fixed and prepared for ultrastructure observations using scanning electron microscopy and transmission electron microscopy techniques. It was observed that the adrenal glands of the paca have divisions as well as the limits of the cortical and medullary region, as well as the subdivisions of the glomerulosa, fasciculated and reticulated areas of the cortical region as in other rodents. An ultrastructure of cells and their components also showed a lot of similarity to that already demonstrated in different rodents. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-09-30 2022-04-29T08:35:38Z 2022-04-29T08:35:38Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.21708/AVB.2021.15.3.8901 Acta Veterinaria Brasilica, v. 15, n. 3, p. 203-208, 2021. 1981-5484 http://hdl.handle.net/11449/229756 10.21708/AVB.2021.15.3.8901 2-s2.0-85117530039 |
url |
http://dx.doi.org/10.21708/AVB.2021.15.3.8901 http://hdl.handle.net/11449/229756 |
identifier_str_mv |
Acta Veterinaria Brasilica, v. 15, n. 3, p. 203-208, 2021. 1981-5484 10.21708/AVB.2021.15.3.8901 2-s2.0-85117530039 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Acta Veterinaria Brasilica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
203-208 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128376174542848 |