Morphological aspects of placenta of the Bradypus variegatus Shinz, 1825

Detalhes bibliográficos
Autor(a) principal: Amorin, Marleyne José Afonso Accyoli Lins
Data de Publicação: 2003
Outros Autores: Miglino, Maria Angélica, Amorin Júnior, Adelmar Afonso, Santos, Tatiana Carlesso dos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Brazilian Journal of Veterinary Research and Animal Science
Texto Completo: https://www.revistas.usp.br/bjvras/article/view/11359
Resumo: The morphological aspects of the placenta and fetal membranes were investigated in 03 sloth originated from the forestal zone in the state of Pernambuco, Brazil. These structures were obtained in 03 pregnant females from Universidade Federal de Pernambuco, two of them were frozen and the third placenta was collected by caesarian, and mother and fetus were preserved. After defrost the placenta were fixed in formaldehyde 10,00% water solution. The small fragments were collected in the placenta and umbilical cord from caesarian. These fragments were fixed in 4,00% paraformoldehyde and processed, as usual, for light microscopy; the specimens were embedded in paraplast. HE and Masson stained 5 mm thick sections. The sloth placenta is chorioamniotic, with villous chorion composing the placental lobes, localized in the fundic uterus region. The smooth chorion has relationship with intern face of the uterus. In late gestation the lobes of placenta fused and increase the size in a unique discoid mass, characterizing the placenta discoid. The umbilical cord connect the fetus with placenta, two arteries and one umbilical vein compose it. The histological result suggests a labirinthic and endotheliochorial placenta in these animals. Therefore, the sloth placenta may be classified as labyrinth, endotheliochorial, multiple, discoid (at term) and chorioamniotic.
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spelling Morphological aspects of placenta of the Bradypus variegatus Shinz, 1825Aspectos morfológicos da placenta da preguiça, Bradypus variegatus Shinz, 1825EndoteliocorialPlacentaPreguiçaBradypus variegatusCorioamnióticaEndoteliochorialPlacentaSlothBradypus variegatesChorioamnioticaThe morphological aspects of the placenta and fetal membranes were investigated in 03 sloth originated from the forestal zone in the state of Pernambuco, Brazil. These structures were obtained in 03 pregnant females from Universidade Federal de Pernambuco, two of them were frozen and the third placenta was collected by caesarian, and mother and fetus were preserved. After defrost the placenta were fixed in formaldehyde 10,00% water solution. The small fragments were collected in the placenta and umbilical cord from caesarian. These fragments were fixed in 4,00% paraformoldehyde and processed, as usual, for light microscopy; the specimens were embedded in paraplast. HE and Masson stained 5 mm thick sections. The sloth placenta is chorioamniotic, with villous chorion composing the placental lobes, localized in the fundic uterus region. The smooth chorion has relationship with intern face of the uterus. In late gestation the lobes of placenta fused and increase the size in a unique discoid mass, characterizing the placenta discoid. The umbilical cord connect the fetus with placenta, two arteries and one umbilical vein compose it. The histological result suggests a labirinthic and endotheliochorial placenta in these animals. Therefore, the sloth placenta may be classified as labyrinth, endotheliochorial, multiple, discoid (at term) and chorioamniotic.Estudaram-se os aspectos morfológicos da placenta e das membranas fetais de 03 placentas de bichos-preguiça (Bradypus variegatus), adultas e prenhes, originárias da Zona da Mata do Estado de Pernambuco. Essas estruturas foram obtidas de 03 fêmeas doadas pela Universidade Federal de Pernambuco, das quais duas encontravam-se congeladas e a terceira foi colhida mediante realização de cirurgia cesariana, onde mãe e feto foram preservados. Depois de descongeladas, as placentas foram fixadas em solução aquosa de formol 10,00%. Da placenta obtida da cesariana colheram-se pequenos fragmentos da região placentária e do funículo umbilical, os quais foram fixados em paraformoldeido 4,00%, tampão fosfato pH 7,4. Os fragmentos passaram pela rotina histológica, onde foram coradas em Hematoxilina e Eosina e Tricrômio de Masson. A placenta da preguiça é corioamniótica, com o cório viloso constituindo os lobos placentários, que se localizam na região fúndica do útero, e o cório liso relacionando-se com a face interna do útero. Nas placentas de final de prenhez os lobos aglomeram-se e fundem-se aumentando de tamanho, formando uma massa principal discóide, caracterizando uma placenta zonária discoidal, que se une ao feto pelo funículo umbilical, constituído por duas artérias e uma veia umbilical. Os resultados histológicos demonstraram que a placenta desses animais é labiríntica e endoteliocorial. Assim, a placenta da preguiça pode ser classificada como labiríntica, endoteliocorial, múltipla, discóide (a termo) e corioamniótica.Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia2003-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjvras/article/view/1135910.1590/S1413-95962003000300009Brazilian Journal of Veterinary Research and Animal Science; Vol. 40 Núm. 3 (2003); 217-226Brazilian Journal of Veterinary Research and Animal Science; Vol. 40 No. 3 (2003); 217-226Brazilian Journal of Veterinary Research and Animal Science; v. 40 n. 3 (2003); 217-226Brazilian Journal of Veterinary Research and Animal Science; V. 40 N. 3 (2003); 217-2261678-44561413-9596reponame:Brazilian Journal of Veterinary Research and Animal Scienceinstname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)instacron:USPporhttps://www.revistas.usp.br/bjvras/article/view/11359/13127Amorin, Marleyne José Afonso Accyoli LinsMiglino, Maria AngélicaAmorin Júnior, Adelmar AfonsoSantos, Tatiana Carlesso dosinfo:eu-repo/semantics/openAccess2020-06-23T04:34:45Zoai:revistas.usp.br:article/11359Revistahttps://www.revistas.usp.br/bjvrasPUBhttps://www.revistas.usp.br/bjvras/oaibjvras@usp.br1413-95961413-9596opendoar:https://www.revistas.usp.br/bjvras/index2023-01-12T16:42:39.439297Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)false
dc.title.none.fl_str_mv Morphological aspects of placenta of the Bradypus variegatus Shinz, 1825
Aspectos morfológicos da placenta da preguiça, Bradypus variegatus Shinz, 1825
title Morphological aspects of placenta of the Bradypus variegatus Shinz, 1825
spellingShingle Morphological aspects of placenta of the Bradypus variegatus Shinz, 1825
Amorin, Marleyne José Afonso Accyoli Lins
Endoteliocorial
Placenta
Preguiça
Bradypus variegatus
Corioamniótica
Endoteliochorial
Placenta
Sloth
Bradypus variegates
Chorioamniotica
title_short Morphological aspects of placenta of the Bradypus variegatus Shinz, 1825
title_full Morphological aspects of placenta of the Bradypus variegatus Shinz, 1825
title_fullStr Morphological aspects of placenta of the Bradypus variegatus Shinz, 1825
title_full_unstemmed Morphological aspects of placenta of the Bradypus variegatus Shinz, 1825
title_sort Morphological aspects of placenta of the Bradypus variegatus Shinz, 1825
author Amorin, Marleyne José Afonso Accyoli Lins
author_facet Amorin, Marleyne José Afonso Accyoli Lins
Miglino, Maria Angélica
Amorin Júnior, Adelmar Afonso
Santos, Tatiana Carlesso dos
author_role author
author2 Miglino, Maria Angélica
Amorin Júnior, Adelmar Afonso
Santos, Tatiana Carlesso dos
author2_role author
author
author
dc.contributor.author.fl_str_mv Amorin, Marleyne José Afonso Accyoli Lins
Miglino, Maria Angélica
Amorin Júnior, Adelmar Afonso
Santos, Tatiana Carlesso dos
dc.subject.por.fl_str_mv Endoteliocorial
Placenta
Preguiça
Bradypus variegatus
Corioamniótica
Endoteliochorial
Placenta
Sloth
Bradypus variegates
Chorioamniotica
topic Endoteliocorial
Placenta
Preguiça
Bradypus variegatus
Corioamniótica
Endoteliochorial
Placenta
Sloth
Bradypus variegates
Chorioamniotica
description The morphological aspects of the placenta and fetal membranes were investigated in 03 sloth originated from the forestal zone in the state of Pernambuco, Brazil. These structures were obtained in 03 pregnant females from Universidade Federal de Pernambuco, two of them were frozen and the third placenta was collected by caesarian, and mother and fetus were preserved. After defrost the placenta were fixed in formaldehyde 10,00% water solution. The small fragments were collected in the placenta and umbilical cord from caesarian. These fragments were fixed in 4,00% paraformoldehyde and processed, as usual, for light microscopy; the specimens were embedded in paraplast. HE and Masson stained 5 mm thick sections. The sloth placenta is chorioamniotic, with villous chorion composing the placental lobes, localized in the fundic uterus region. The smooth chorion has relationship with intern face of the uterus. In late gestation the lobes of placenta fused and increase the size in a unique discoid mass, characterizing the placenta discoid. The umbilical cord connect the fetus with placenta, two arteries and one umbilical vein compose it. The histological result suggests a labirinthic and endotheliochorial placenta in these animals. Therefore, the sloth placenta may be classified as labyrinth, endotheliochorial, multiple, discoid (at term) and chorioamniotic.
publishDate 2003
dc.date.none.fl_str_mv 2003-01-01
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 https://www.revistas.usp.br/bjvras/article/view/11359
10.1590/S1413-95962003000300009
url https://www.revistas.usp.br/bjvras/article/view/11359
identifier_str_mv 10.1590/S1413-95962003000300009
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/11359/13127
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 de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
dc.source.none.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science; Vol. 40 Núm. 3 (2003); 217-226
Brazilian Journal of Veterinary Research and Animal Science; Vol. 40 No. 3 (2003); 217-226
Brazilian Journal of Veterinary Research and Animal Science; v. 40 n. 3 (2003); 217-226
Brazilian Journal of Veterinary Research and Animal Science; V. 40 N. 3 (2003); 217-226
1678-4456
1413-9596
reponame:Brazilian Journal of Veterinary Research and Animal Science
instname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron:USP
instname_str Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron_str USP
institution USP
reponame_str Brazilian Journal of Veterinary Research and Animal Science
collection Brazilian Journal of Veterinary Research and Animal Science
repository.name.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
repository.mail.fl_str_mv bjvras@usp.br
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