Morfologia e morfometria dos tipos de fibras do músculo reto abdominal de cadelas (canis familiaris) durante a gestação

Detalhes bibliográficos
Autor(a) principal: de Brito, Maila Karina Mattos [UNESP]
Data de Publicação: 2007
Outros Autores: Carvalho Junior, Colombo Guerra, dal Pai, Alexandre, dal Pai, Vitalino, Giacometti, José Alberto [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.revistas.usp.br/bjvras/article/view/26625
http://hdl.handle.net/11449/70184
Resumo: The present paper deals with the evaluation of morphological and morphometric alterations of slow-twist (I) and fast-twitch (II) fibers of rectus abdominis muscle of adult female dog during pregestational phase, at 30 and 60 days of pregnancy and at 30 days after the parturition. At the every phases, using the open biopsy technique, muscle samples were collected. The samples were plunged. Histological sections were cut in a microtome. For general morphology, some sections were stained with HE. Subsequent sections were reacted for myofibrillar ATPase (m-ATPase), after alkaline (pH 10.4) and acid (pH 4.4) pre-incubations, in order to identificate type I and II fibers. In the pre-gestational phase, muscle tissue revealed to be composed by fibers with different diameters, presenting polygonal outlines and one or more periphery nuclei. At 30 days of pregnancy, muscle fiber characteristics were similar. At 60 days, in addition to the existence of normal fibers, polymorphic and small diameter fibers were frequent. At 30 days after the parturation, the morphology of muscle fiber were similar to that observed in the pre-gestational phase. In the four phases, type II fiber diameters were lager than type I. The diameters of both fiber types showed a significant reduction in the 30 days phase and a significative increasing at 60 days. The expansion of the abdominal wall during the pregnancy represents a chronic stimulus, induced changes in the morphology and in the fiber type diameters.
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spelling Morfologia e morfometria dos tipos de fibras do músculo reto abdominal de cadelas (canis familiaris) durante a gestaçãoMorphologic and morphometry of rectus abdominis muscle fiber types of the during the gestation dog (canis familiaris)Female dogFiber type i and iiGestationMorphometryRetus abdominis muscleCanis familiarisThe present paper deals with the evaluation of morphological and morphometric alterations of slow-twist (I) and fast-twitch (II) fibers of rectus abdominis muscle of adult female dog during pregestational phase, at 30 and 60 days of pregnancy and at 30 days after the parturition. At the every phases, using the open biopsy technique, muscle samples were collected. The samples were plunged. Histological sections were cut in a microtome. For general morphology, some sections were stained with HE. Subsequent sections were reacted for myofibrillar ATPase (m-ATPase), after alkaline (pH 10.4) and acid (pH 4.4) pre-incubations, in order to identificate type I and II fibers. In the pre-gestational phase, muscle tissue revealed to be composed by fibers with different diameters, presenting polygonal outlines and one or more periphery nuclei. At 30 days of pregnancy, muscle fiber characteristics were similar. At 60 days, in addition to the existence of normal fibers, polymorphic and small diameter fibers were frequent. At 30 days after the parturation, the morphology of muscle fiber were similar to that observed in the pre-gestational phase. In the four phases, type II fiber diameters were lager than type I. The diameters of both fiber types showed a significant reduction in the 30 days phase and a significative increasing at 60 days. The expansion of the abdominal wall during the pregnancy represents a chronic stimulus, induced changes in the morphology and in the fiber type diameters.Faculdade de Ciências e Tecnologia Universidade Estadual Paulista, Presidente Prudente - SPUniversidade do Oeste Paulista, Presidente Prudente- SPFaculdade de Tecnologia, Botucatu - SPFaculdade de Ciências e Tecnologia Universidade Estadual Paulista, Presidente Prudente - SPUniversidade Estadual Paulista (Unesp)Universidade do Oeste Paulista (UNOESTE)Faculdade de Tecnologiade Brito, Maila Karina Mattos [UNESP]Carvalho Junior, Colombo Guerradal Pai, Alexandredal Pai, VitalinoGiacometti, José Alberto [UNESP]2014-05-27T11:22:44Z2014-05-27T11:22:44Z2007-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article254-260application/pdfhttp://www.revistas.usp.br/bjvras/article/view/26625Brazilian Journal of Veterinary Research and Animal Science, v. 44, n. 4, p. 254-260, 2007.1413-95961678-4456http://hdl.handle.net/11449/701842-s2.0-781493996942-s2.0-78149399694.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporBrazilian Journal of Veterinary Research and Animal Science0,2250,225info:eu-repo/semantics/openAccess2024-06-19T12:44:41Zoai:repositorio.unesp.br:11449/70184Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:21:54.991085Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Morfologia e morfometria dos tipos de fibras do músculo reto abdominal de cadelas (canis familiaris) durante a gestação
Morphologic and morphometry of rectus abdominis muscle fiber types of the during the gestation dog (canis familiaris)
title Morfologia e morfometria dos tipos de fibras do músculo reto abdominal de cadelas (canis familiaris) durante a gestação
spellingShingle Morfologia e morfometria dos tipos de fibras do músculo reto abdominal de cadelas (canis familiaris) durante a gestação
de Brito, Maila Karina Mattos [UNESP]
Female dog
Fiber type i and ii
Gestation
Morphometry
Retus abdominis muscle
Canis familiaris
title_short Morfologia e morfometria dos tipos de fibras do músculo reto abdominal de cadelas (canis familiaris) durante a gestação
title_full Morfologia e morfometria dos tipos de fibras do músculo reto abdominal de cadelas (canis familiaris) durante a gestação
title_fullStr Morfologia e morfometria dos tipos de fibras do músculo reto abdominal de cadelas (canis familiaris) durante a gestação
title_full_unstemmed Morfologia e morfometria dos tipos de fibras do músculo reto abdominal de cadelas (canis familiaris) durante a gestação
title_sort Morfologia e morfometria dos tipos de fibras do músculo reto abdominal de cadelas (canis familiaris) durante a gestação
author de Brito, Maila Karina Mattos [UNESP]
author_facet de Brito, Maila Karina Mattos [UNESP]
Carvalho Junior, Colombo Guerra
dal Pai, Alexandre
dal Pai, Vitalino
Giacometti, José Alberto [UNESP]
author_role author
author2 Carvalho Junior, Colombo Guerra
dal Pai, Alexandre
dal Pai, Vitalino
Giacometti, José Alberto [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade do Oeste Paulista (UNOESTE)
Faculdade de Tecnologia
dc.contributor.author.fl_str_mv de Brito, Maila Karina Mattos [UNESP]
Carvalho Junior, Colombo Guerra
dal Pai, Alexandre
dal Pai, Vitalino
Giacometti, José Alberto [UNESP]
dc.subject.por.fl_str_mv Female dog
Fiber type i and ii
Gestation
Morphometry
Retus abdominis muscle
Canis familiaris
topic Female dog
Fiber type i and ii
Gestation
Morphometry
Retus abdominis muscle
Canis familiaris
description The present paper deals with the evaluation of morphological and morphometric alterations of slow-twist (I) and fast-twitch (II) fibers of rectus abdominis muscle of adult female dog during pregestational phase, at 30 and 60 days of pregnancy and at 30 days after the parturition. At the every phases, using the open biopsy technique, muscle samples were collected. The samples were plunged. Histological sections were cut in a microtome. For general morphology, some sections were stained with HE. Subsequent sections were reacted for myofibrillar ATPase (m-ATPase), after alkaline (pH 10.4) and acid (pH 4.4) pre-incubations, in order to identificate type I and II fibers. In the pre-gestational phase, muscle tissue revealed to be composed by fibers with different diameters, presenting polygonal outlines and one or more periphery nuclei. At 30 days of pregnancy, muscle fiber characteristics were similar. At 60 days, in addition to the existence of normal fibers, polymorphic and small diameter fibers were frequent. At 30 days after the parturation, the morphology of muscle fiber were similar to that observed in the pre-gestational phase. In the four phases, type II fiber diameters were lager than type I. The diameters of both fiber types showed a significant reduction in the 30 days phase and a significative increasing at 60 days. The expansion of the abdominal wall during the pregnancy represents a chronic stimulus, induced changes in the morphology and in the fiber type diameters.
publishDate 2007
dc.date.none.fl_str_mv 2007-12-01
2014-05-27T11:22:44Z
2014-05-27T11:22:44Z
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://www.revistas.usp.br/bjvras/article/view/26625
Brazilian Journal of Veterinary Research and Animal Science, v. 44, n. 4, p. 254-260, 2007.
1413-9596
1678-4456
http://hdl.handle.net/11449/70184
2-s2.0-78149399694
2-s2.0-78149399694.pdf
url http://www.revistas.usp.br/bjvras/article/view/26625
http://hdl.handle.net/11449/70184
identifier_str_mv Brazilian Journal of Veterinary Research and Animal Science, v. 44, n. 4, p. 254-260, 2007.
1413-9596
1678-4456
2-s2.0-78149399694
2-s2.0-78149399694.pdf
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science
0,225
0,225
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 254-260
application/pdf
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
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