Comparison between slow freezing and vitrification in terms of ovarian tissue viability in a bovine model
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFMG |
Texto Completo: | http://hdl.handle.net/1843/62751 |
Resumo: | Objective To assess the viability of bovine ovarian tissue after cryopreservation through either slow freezing or vitrification, and to compare it to that of control tissue by performing morphological analyses.Methods: The study included 20 bovine ovarian cortex fragments that were divided into control, vitrification, and slow freezing groups. Each group consisted of four fragments of the same ovary, two fixed without cultivation, and two fixed with cultivation. Tissues were evaluated based on follicular morphology immediately after heating and after 7 days of culture, and compared with the control group.Results A total of 240 fragments were analyzed, generating a sample of 1,344 follicles without cultivation and 552 with cultivation. When the non-cultivated samples were classified as non-atretic follicles, 572 were found in the control group, 289 in the vitrification group, and 373 in the slow freezing group, showing no significant differences. When classified as atretic, 46 follicles were found in the control group,23 in the vitrification group, and 41 in the slow freezing group, also showing no statistical difference. In the post-culture sample, an evolution of the follicular stages could be observed. This finding was important to support that the follicles considered non-atretic in the non-cultivated group were actually viable in the morphological evaluation.Conclusion With no differences between the protocols, vitrification was shown to be an advanced and alternative method for patients who will undergo treatments that carry the risk of ovarian failure, as the method is less expensive, faster, and more adaptable to laboratory routine |
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2024-01-12T20:45:07Z2024-01-12T20:45:07Z2016380733333910.1055/s-0036-158625801007203http://hdl.handle.net/1843/62751Objective To assess the viability of bovine ovarian tissue after cryopreservation through either slow freezing or vitrification, and to compare it to that of control tissue by performing morphological analyses.Methods: The study included 20 bovine ovarian cortex fragments that were divided into control, vitrification, and slow freezing groups. Each group consisted of four fragments of the same ovary, two fixed without cultivation, and two fixed with cultivation. Tissues were evaluated based on follicular morphology immediately after heating and after 7 days of culture, and compared with the control group.Results A total of 240 fragments were analyzed, generating a sample of 1,344 follicles without cultivation and 552 with cultivation. When the non-cultivated samples were classified as non-atretic follicles, 572 were found in the control group, 289 in the vitrification group, and 373 in the slow freezing group, showing no significant differences. When classified as atretic, 46 follicles were found in the control group,23 in the vitrification group, and 41 in the slow freezing group, also showing no statistical difference. In the post-culture sample, an evolution of the follicular stages could be observed. This finding was important to support that the follicles considered non-atretic in the non-cultivated group were actually viable in the morphological evaluation.Conclusion With no differences between the protocols, vitrification was shown to be an advanced and alternative method for patients who will undergo treatments that carry the risk of ovarian failure, as the method is less expensive, faster, and more adaptable to laboratory routineObjetivo avaliar a viabilidade do tecido ovariano bovino após a criopreservação,utilizando congelamento lento e vitrificação, e comparando com o tecido controle pormeio de análises morfológicas.Métodos o estudo incluiu fragmentos de córtex de vinte ováriosbovinos divididos emgrupos controle, vitrificação e congelamento lento. Cada grupo foi composto por quatro fragmentos do mesmo ovário, sendo dois fragmentos fixados sem cultivo e dois fragmentos fixados pós-cultivo. Os tecidos foram avaliados pela morfologia folicular logo após o aquecimento e após sete dias de cultivo, e comparados com o grupo controle.Resultados um total de 240 fragmentos foi analisado, gerando uma amostra de1.344 folículos sem cultivo e 552 pós-cultivo. Quando a amostra sem cultivo teve seus folículos agrupados em não atrésicos, obtivemos 572 no grupo controle, 289 no vitrificação, e 373 no congelamento lento, não apresentando diferença estatística. Quando agrupados em atrésicos, o grupo controle apresentou 46 folículos, o vitrificação, 23, e o congelamento lento, 41, não apresentando também diferença estatística. Na amostra pós-cultivo, podemos observar uma evolução dos estágios foliculares: esse achado foi importante para sustentar que os folículos consideradosnão atrésicos na avaliação morfológica sem cultivo estavam realmente viáveis.Conclusão não havendo diferenças entre os protocolos, a vitrificação se mostra umavanço e um método alternativo para pacientes que irão se submeter a tratamentosque podem levar a uma falência ovariana, uma vez que a metodologia é mais barata,mais rápida e mais bem adaptável a uma rotina de um laboratório.engUniversidade Federal de Minas GeraisUFMGBrasilMEDICINA - FACULDADE DE MEDICINARevista Brasileira de Ginecologia e ObstetríciaVitrificationFertilityOvaryVitrificationSlow freezingFertilityComparison between slow freezing and vitrification in terms of ovarian tissue viability in a bovine modelComparação da viabilidade do tecido ovariano após congelamento lento e vitrificação em modelo bovinoinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://doi.org/10.1055/s-0036-1586258AnacamposJanaína GuedesJhenifer Kliemchen RodriguesWalter PaceRenato FontouraJoão CaetanoRicardo Marinhoapplication/pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/62751/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALComparison between Slow Freezing and pdfa.pdfComparison between Slow Freezing and pdfa.pdfapplication/pdf1028091https://repositorio.ufmg.br/bitstream/1843/62751/2/Comparison%20between%20Slow%20Freezing%20and%20pdfa.pdff16ab504fde3890e7046a12b308072eaMD521843/627512024-01-12 17:50:09.015oai:repositorio.ufmg.br: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Repositório de PublicaçõesPUBhttps://repositorio.ufmg.br/oaiopendoar:2024-01-12T20:50:09Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false |
dc.title.pt_BR.fl_str_mv |
Comparison between slow freezing and vitrification in terms of ovarian tissue viability in a bovine model |
dc.title.alternative.pt_BR.fl_str_mv |
Comparação da viabilidade do tecido ovariano após congelamento lento e vitrificação em modelo bovino |
title |
Comparison between slow freezing and vitrification in terms of ovarian tissue viability in a bovine model |
spellingShingle |
Comparison between slow freezing and vitrification in terms of ovarian tissue viability in a bovine model Anacampos Vitrification Slow freezing Fertility Vitrification Fertility Ovary |
title_short |
Comparison between slow freezing and vitrification in terms of ovarian tissue viability in a bovine model |
title_full |
Comparison between slow freezing and vitrification in terms of ovarian tissue viability in a bovine model |
title_fullStr |
Comparison between slow freezing and vitrification in terms of ovarian tissue viability in a bovine model |
title_full_unstemmed |
Comparison between slow freezing and vitrification in terms of ovarian tissue viability in a bovine model |
title_sort |
Comparison between slow freezing and vitrification in terms of ovarian tissue viability in a bovine model |
author |
Anacampos |
author_facet |
Anacampos Janaína Guedes Jhenifer Kliemchen Rodrigues Walter Pace Renato Fontoura João Caetano Ricardo Marinho |
author_role |
author |
author2 |
Janaína Guedes Jhenifer Kliemchen Rodrigues Walter Pace Renato Fontoura João Caetano Ricardo Marinho |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Anacampos Janaína Guedes Jhenifer Kliemchen Rodrigues Walter Pace Renato Fontoura João Caetano Ricardo Marinho |
dc.subject.por.fl_str_mv |
Vitrification Slow freezing Fertility |
topic |
Vitrification Slow freezing Fertility Vitrification Fertility Ovary |
dc.subject.other.pt_BR.fl_str_mv |
Vitrification Fertility Ovary |
description |
Objective To assess the viability of bovine ovarian tissue after cryopreservation through either slow freezing or vitrification, and to compare it to that of control tissue by performing morphological analyses.Methods: The study included 20 bovine ovarian cortex fragments that were divided into control, vitrification, and slow freezing groups. Each group consisted of four fragments of the same ovary, two fixed without cultivation, and two fixed with cultivation. Tissues were evaluated based on follicular morphology immediately after heating and after 7 days of culture, and compared with the control group.Results A total of 240 fragments were analyzed, generating a sample of 1,344 follicles without cultivation and 552 with cultivation. When the non-cultivated samples were classified as non-atretic follicles, 572 were found in the control group, 289 in the vitrification group, and 373 in the slow freezing group, showing no significant differences. When classified as atretic, 46 follicles were found in the control group,23 in the vitrification group, and 41 in the slow freezing group, also showing no statistical difference. In the post-culture sample, an evolution of the follicular stages could be observed. This finding was important to support that the follicles considered non-atretic in the non-cultivated group were actually viable in the morphological evaluation.Conclusion With no differences between the protocols, vitrification was shown to be an advanced and alternative method for patients who will undergo treatments that carry the risk of ovarian failure, as the method is less expensive, faster, and more adaptable to laboratory routine |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2024-01-12T20:45:07Z |
dc.date.available.fl_str_mv |
2024-01-12T20:45:07Z |
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://hdl.handle.net/1843/62751 |
dc.identifier.doi.pt_BR.fl_str_mv |
10.1055/s-0036-1586258 |
dc.identifier.issn.pt_BR.fl_str_mv |
01007203 |
identifier_str_mv |
10.1055/s-0036-1586258 01007203 |
url |
http://hdl.handle.net/1843/62751 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.none.fl_str_mv |
Revista Brasileira de Ginecologia e Obstetrícia |
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 Federal de Minas Gerais |
dc.publisher.initials.fl_str_mv |
UFMG |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
MEDICINA - FACULDADE DE MEDICINA |
publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFMG instname:Universidade Federal de Minas Gerais (UFMG) instacron:UFMG |
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Universidade Federal de Minas Gerais (UFMG) |
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UFMG |
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UFMG |
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Repositório Institucional da UFMG |
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Repositório Institucional da UFMG |
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