Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFG |
dARK ID: | ark:/38995/0013000005gjx |
Texto Completo: | http://repositorio.bc.ufg.br/tede/handle/tede/9875 |
Resumo: | The prostate is an organ that during its development, growth, differentiation and homeostasis in adult life is under hormonal control, mainly by steroid hormones. Bisphenol-A (BPA) is a chemical used in the manufacture of polycarbonate-based products with the ability to mimic estrogens. The exposure to this compound during critical periods of development has caused permanent changes in several reproductive organs of females and males. The prostate is present in males and some species of female mammals. Little is known about prostate development in females and what are the mechanisms that govern it, further of its function in the female reproductive tract. The aim of this study was to describe comparatively the prostate development of male and female gerbils with one day of life and evaluate the effects of intrauterine exposure to environmental levels of BPA in the ventral prostate of males and the prostate of females of these rodents during the first day of neonatal life and a young-adult stage. For this, 20 female and 20 male of gerbils, all between 3 and 4 months old, were randomly matched for mating. We randomly matched one male to one female to form independent families. The mating day was determined by the presence of spermatozoids in the vaginal smears; this day was considered as day zero, being the initial day of the pregnancy period. Pregnant females received daily doses of mineral oil (control group) or 40 μg/kg/day of BPA (BPA group) from the 17th until the 24th day of gestation. After the birth, males and females were separated and euthanized with a day and ninety days. The prostates were collected for structural, cytochemical and immunohistochemical analysis. Furthermore, the prostate tissue of animals from one day of age was subjected to analysis three-dimensional reconstruction (3D). With this study, we describe the development of prostate compared gerbils males and females with a day of life, and evaluate the effects of exposure to BPA at levels similar to the spread in the environment, on the prostate of these animals. The results showed that there were no morphological alterations in the pattern of ductal budding and branching in the different experimental groups. In newborn males, there was a decrease in immunostaining for the androgen receptor (AR) and the proliferating cell nuclear antigen (PCNA). In adult males was observed a reduction in the relative frequency of the epithelial compartment. In newborn females was a decrease in AR and PCNA, and an increase in the immunostaining for estrogen receptor alpha (ERα). In adult females there was a significant increase in AR and PCNA. Thus, it can be concluded that BPA exposure during intrauterine life did not change the prostate development pattern or the morphology of the tissue in both, male and female newborns and adults. The effects of exposure are manifested differently in newborn and adult animals, due to changes in the hormonal environment that occur through the neonatal to adult life. Finally, the intrauterine exposure to BPA had more effect on the prostate gland of female gerbil. |
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Santos, Fernanda Cristina Alcantara doshttp://lattes.cnpq.br/3025583084190459Marques, Mara Rúbiahttp://lattes.cnpq.br/9999352683566198Santos, Fernanda Cristina Alcantara dosVilamaior, Patrícia Simone LeiteBrito, Pedro Vale de Azevedohttp://lattes.cnpq.br/2030080856125312Rodríguez, Daniel Andrés Osorio2019-08-02T13:24:38Z2015-03-02RODRÍGUEZ, Daniel Andrés Osorio. Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino. 2015. 73 f. Dissertação (Mestrado em Ciências Biológicas) - Universidade Federal de Goiás, Goiânia, 2015.http://repositorio.bc.ufg.br/tede/handle/tede/9875ark:/38995/0013000005gjxThe prostate is an organ that during its development, growth, differentiation and homeostasis in adult life is under hormonal control, mainly by steroid hormones. Bisphenol-A (BPA) is a chemical used in the manufacture of polycarbonate-based products with the ability to mimic estrogens. The exposure to this compound during critical periods of development has caused permanent changes in several reproductive organs of females and males. The prostate is present in males and some species of female mammals. Little is known about prostate development in females and what are the mechanisms that govern it, further of its function in the female reproductive tract. The aim of this study was to describe comparatively the prostate development of male and female gerbils with one day of life and evaluate the effects of intrauterine exposure to environmental levels of BPA in the ventral prostate of males and the prostate of females of these rodents during the first day of neonatal life and a young-adult stage. For this, 20 female and 20 male of gerbils, all between 3 and 4 months old, were randomly matched for mating. We randomly matched one male to one female to form independent families. The mating day was determined by the presence of spermatozoids in the vaginal smears; this day was considered as day zero, being the initial day of the pregnancy period. Pregnant females received daily doses of mineral oil (control group) or 40 μg/kg/day of BPA (BPA group) from the 17th until the 24th day of gestation. After the birth, males and females were separated and euthanized with a day and ninety days. The prostates were collected for structural, cytochemical and immunohistochemical analysis. Furthermore, the prostate tissue of animals from one day of age was subjected to analysis three-dimensional reconstruction (3D). With this study, we describe the development of prostate compared gerbils males and females with a day of life, and evaluate the effects of exposure to BPA at levels similar to the spread in the environment, on the prostate of these animals. The results showed that there were no morphological alterations in the pattern of ductal budding and branching in the different experimental groups. In newborn males, there was a decrease in immunostaining for the androgen receptor (AR) and the proliferating cell nuclear antigen (PCNA). In adult males was observed a reduction in the relative frequency of the epithelial compartment. In newborn females was a decrease in AR and PCNA, and an increase in the immunostaining for estrogen receptor alpha (ERα). In adult females there was a significant increase in AR and PCNA. Thus, it can be concluded that BPA exposure during intrauterine life did not change the prostate development pattern or the morphology of the tissue in both, male and female newborns and adults. The effects of exposure are manifested differently in newborn and adult animals, due to changes in the hormonal environment that occur through the neonatal to adult life. Finally, the intrauterine exposure to BPA had more effect on the prostate gland of female gerbil.A próstata é um órgão que durante o seu desenvolvimento, crescimento, diferenciação e homeostase na vida adulta está sob controle hormonal, principalmente por hormônios esteroides. O bisfenol-A (BPA) é um químico utilizado na elaboração de produtos à base de policarbonato, com capacidade de mimetizar estrógenos. A exposição a este composto durante períodos críticos do desenvolvimento tem causado alterações permanentes em diversos órgãos reprodutivos de fêmeas e machos. A próstata está presente nos machos e em algumas espécies de fêmeas de mamíferos. Pouco se sabe acerca do desenvolvimento da próstata nas fêmeas e quais são os mecanismos que o regem, além da sua função no trato reprodutor feminino. O objetivo deste estudo foi descrever comparativamente o desenvolvimento prostático de machos e fêmeas de gerbilos com um dia de vida e avaliar os efeitos da exposição intrauterina a níveis ambientais de BPA na próstata ventral de machos e na próstata das fêmeas destes roedores durante o primeiro dia de vida neonatal e na fase adulto-jovem. Para isso, 20 machos e 20 fêmeas de gerbilo entre 3 e 4 meses de idade foram utilizados aleatoriamente para o acasalamento. A cópula foi confirmada pela presença de espermatozoides no trato vaginal. As fêmeas grávidas receberam doses diárias de óleo mineral (grupo controle) ou de 40μg/kg/dia de BPA (grupo BPA) entre os dias 17 e 24 de gestação. Após o nascimento, os machos e fêmeas foram separados e eutanaziados com um dia e noventa dias de idade. As próstatas foram coletadas para análise estruturais, citoquímicas e imunohistoquímicas. Além disso, o tecido prostático dos animais de um dia de idade foi submetido à análise de reconstrução tridimensional (3D). Com o presente estudo, foi possível descrever comparativamente o desenvolvimento da próstata de gerbilos machos e fêmeas com um dia de vida, e avaliar os efeitos da exposição ao BPA, em níveis similares aos disseminados no meio ambiente, sobre a próstata destes animais. Os resultados demonstraram que não ocorreram alterações morfológicas no padrão de brotamento e ramificação ductal nos diferentes grupos experimentais. Em machos neonatos, ocorreu uma redução na imunomarcação para o receptor de andrógenos (AR) e para o antígeno nuclear de proliferação celular (PCNA). Nos machos adultos observou-se uma redução na frequência relativa do compartimento epitelial. Em fêmeas neonatas ocorreu uma redução de AR e PCNA, e um aumento da imunomarcação para o receptor de estrógenos alfa (ERα). Em fêmeas adultas observou-se um aumento significativo do AR e PCNA. Deste modo, pode se concluir que, a exposição ao BPA durante a vida intrauterina não altera o padrão de desenvolvimento prostático nem a morfologia deste tecido em machos e fêmeas neonatos e adultos. Os efeitos da exposição se manifestam de maneira diferente nos animais neonatos e adultos, devido a mudanças no ambiente hormonal que acontece desde a vida neonatal até a adulta. E, finalmente, a exposição intrauterina ao BPA teve mais efeito nas próstatas de fêmeas do gerbilo.Submitted by Marlene Santos (marlene.bc.ufg@gmail.com) on 2019-07-23T20:32:24Z No. of bitstreams: 2 Dissertacão - Daniel Andrés Osorio Rodríguez - 2015.pdf: 8072884 bytes, checksum: 2471d8c1984124f6947957d4f458f6ef (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2019-08-02T13:24:38Z (GMT) No. of bitstreams: 2 Dissertacão - Daniel Andrés Osorio Rodríguez - 2015.pdf: 8072884 bytes, checksum: 2471d8c1984124f6947957d4f458f6ef (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2019-08-02T13:24:38Z (GMT). No. of bitstreams: 2 Dissertacão - Daniel Andrés Osorio Rodríguez - 2015.pdf: 8072884 bytes, checksum: 2471d8c1984124f6947957d4f458f6ef (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2015-03-02Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqapplication/pdfporUniversidade Federal de GoiásPrograma de Pós-graduação em Ciências Biológicas (ICB)UFGBrasilInstituto de Ciências Biológicas - ICB (RG)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessSeio urogenitalPróstata ventralPróstata femininaBisfenol-AReceptor de estrógenos alfaReceptor de andrógenosAntígeno nuclear de proliferação celularUrogenital sinusVentral prostateFemale prostateBisphenol-AEstrogen receptor alphaProliferating cell nuclear antigenAndrogen receptorBIOQUIMICA::BIOLOGIA MOLECULAREstudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterinoStudy of prostatic morphogenesis in normal gerbils and exposed to environmental levels of bisphenol-A during intrauterine developmentinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis-3362730732320261554600600600600-38727721178273734043962143990328052072-2555911436985713659reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGORIGINALDissertação - Daniel Andrés Osorio Rodríguez - 2015.pdfDissertação - Daniel Andrés Osorio Rodríguez - 2015.pdfapplication/pdf8072884http://repositorio.bc.ufg.br/tede/bitstreams/d2bfd502-1a02-4259-a470-d0c77ac3c8f8/download2471d8c1984124f6947957d4f458f6efMD55LICENSElicense.txtlicense.txttext/plain; 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dc.title.eng.fl_str_mv |
Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino |
dc.title.alternative.eng.fl_str_mv |
Study of prostatic morphogenesis in normal gerbils and exposed to environmental levels of bisphenol-A during intrauterine development |
title |
Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino |
spellingShingle |
Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino Rodríguez, Daniel Andrés Osorio Seio urogenital Próstata ventral Próstata feminina Bisfenol-A Receptor de estrógenos alfa Receptor de andrógenos Antígeno nuclear de proliferação celular Urogenital sinus Ventral prostate Female prostate Bisphenol-A Estrogen receptor alpha Proliferating cell nuclear antigen Androgen receptor BIOQUIMICA::BIOLOGIA MOLECULAR |
title_short |
Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino |
title_full |
Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino |
title_fullStr |
Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino |
title_full_unstemmed |
Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino |
title_sort |
Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino |
author |
Rodríguez, Daniel Andrés Osorio |
author_facet |
Rodríguez, Daniel Andrés Osorio |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Santos, Fernanda Cristina Alcantara dos |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/3025583084190459 |
dc.contributor.advisor-co1.fl_str_mv |
Marques, Mara Rúbia |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/9999352683566198 |
dc.contributor.referee1.fl_str_mv |
Santos, Fernanda Cristina Alcantara dos |
dc.contributor.referee2.fl_str_mv |
Vilamaior, Patrícia Simone Leite |
dc.contributor.referee3.fl_str_mv |
Brito, Pedro Vale de Azevedo |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/2030080856125312 |
dc.contributor.author.fl_str_mv |
Rodríguez, Daniel Andrés Osorio |
contributor_str_mv |
Santos, Fernanda Cristina Alcantara dos Marques, Mara Rúbia Santos, Fernanda Cristina Alcantara dos Vilamaior, Patrícia Simone Leite Brito, Pedro Vale de Azevedo |
dc.subject.por.fl_str_mv |
Seio urogenital Próstata ventral Próstata feminina Bisfenol-A Receptor de estrógenos alfa Receptor de andrógenos Antígeno nuclear de proliferação celular |
topic |
Seio urogenital Próstata ventral Próstata feminina Bisfenol-A Receptor de estrógenos alfa Receptor de andrógenos Antígeno nuclear de proliferação celular Urogenital sinus Ventral prostate Female prostate Bisphenol-A Estrogen receptor alpha Proliferating cell nuclear antigen Androgen receptor BIOQUIMICA::BIOLOGIA MOLECULAR |
dc.subject.eng.fl_str_mv |
Urogenital sinus Ventral prostate Female prostate Bisphenol-A Estrogen receptor alpha Proliferating cell nuclear antigen Androgen receptor |
dc.subject.cnpq.fl_str_mv |
BIOQUIMICA::BIOLOGIA MOLECULAR |
description |
The prostate is an organ that during its development, growth, differentiation and homeostasis in adult life is under hormonal control, mainly by steroid hormones. Bisphenol-A (BPA) is a chemical used in the manufacture of polycarbonate-based products with the ability to mimic estrogens. The exposure to this compound during critical periods of development has caused permanent changes in several reproductive organs of females and males. The prostate is present in males and some species of female mammals. Little is known about prostate development in females and what are the mechanisms that govern it, further of its function in the female reproductive tract. The aim of this study was to describe comparatively the prostate development of male and female gerbils with one day of life and evaluate the effects of intrauterine exposure to environmental levels of BPA in the ventral prostate of males and the prostate of females of these rodents during the first day of neonatal life and a young-adult stage. For this, 20 female and 20 male of gerbils, all between 3 and 4 months old, were randomly matched for mating. We randomly matched one male to one female to form independent families. The mating day was determined by the presence of spermatozoids in the vaginal smears; this day was considered as day zero, being the initial day of the pregnancy period. Pregnant females received daily doses of mineral oil (control group) or 40 μg/kg/day of BPA (BPA group) from the 17th until the 24th day of gestation. After the birth, males and females were separated and euthanized with a day and ninety days. The prostates were collected for structural, cytochemical and immunohistochemical analysis. Furthermore, the prostate tissue of animals from one day of age was subjected to analysis three-dimensional reconstruction (3D). With this study, we describe the development of prostate compared gerbils males and females with a day of life, and evaluate the effects of exposure to BPA at levels similar to the spread in the environment, on the prostate of these animals. The results showed that there were no morphological alterations in the pattern of ductal budding and branching in the different experimental groups. In newborn males, there was a decrease in immunostaining for the androgen receptor (AR) and the proliferating cell nuclear antigen (PCNA). In adult males was observed a reduction in the relative frequency of the epithelial compartment. In newborn females was a decrease in AR and PCNA, and an increase in the immunostaining for estrogen receptor alpha (ERα). In adult females there was a significant increase in AR and PCNA. Thus, it can be concluded that BPA exposure during intrauterine life did not change the prostate development pattern or the morphology of the tissue in both, male and female newborns and adults. The effects of exposure are manifested differently in newborn and adult animals, due to changes in the hormonal environment that occur through the neonatal to adult life. Finally, the intrauterine exposure to BPA had more effect on the prostate gland of female gerbil. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-03-02 |
dc.date.accessioned.fl_str_mv |
2019-08-02T13:24:38Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
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RODRÍGUEZ, Daniel Andrés Osorio. Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino. 2015. 73 f. Dissertação (Mestrado em Ciências Biológicas) - Universidade Federal de Goiás, Goiânia, 2015. |
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http://repositorio.bc.ufg.br/tede/handle/tede/9875 |
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ark:/38995/0013000005gjx |
identifier_str_mv |
RODRÍGUEZ, Daniel Andrés Osorio. Estudo da morfogênese prostática em gerbilos normais e expostos a níveis ambientais de bisfenol-A durante o desenvolvimento intrauterino. 2015. 73 f. Dissertação (Mestrado em Ciências Biológicas) - Universidade Federal de Goiás, Goiânia, 2015. ark:/38995/0013000005gjx |
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http://repositorio.bc.ufg.br/tede/handle/tede/9875 |
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por |
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3962143990328052072 |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
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Universidade Federal de Goiás |
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UFG |
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Brasil |
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Instituto de Ciências Biológicas - ICB (RG) |
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Universidade Federal de Goiás |
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