Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs

Meikle, Ana - Garófalo, E.G - Rodríguez Piñón, Marcelo - Tasende Bolón, Celia - Sahlin, L

Resumen:

The regulation of estrogen and progesterone receptor (ER, PR) expression by estradiol (E2) and progesterone (P4) in the oviduct, uterus and cervix of female lambs was studied. The animals received three intramuscular injections of E2, P4 or vehicle with an interval of 24 h and they were slaugthered 24 h after the third injection. Determinations of ER and PR were performed by binding assays and mRNAs of ERα and PR by solution hybridization. High levels of ER and PR in both cervix and oviduct were found in the female lamb, differing from other mammalian species. No significant effects by either E2 or P4 treatment on ER and PR levels in the cervix and oviduct could be observed. E2 treatment increased the mRNA levels of ERa and PR more than 3-fold in the cervix, while P4 treatment increased the mRNA levels of ERa and PR in the uterus. The results show differential effects of gonadal steroids on sex steroid receptor expression along the reproductive tract in female lambs, suggesting that steroid target tissues can modulate responses to the same circulating levels of steroid hormones.

Detalles Bibliográficos
2001
ESTROGENO
PROGESTERONA
ESTEROIDES
RECEPTORES DE HORMONAS
CORDEROS
OVINOS
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/48268
Acceso abierto
Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
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author Meikle, Ana
author2 Garófalo, E.G
Rodríguez Piñón, Marcelo
Tasende Bolón, Celia
Sahlin, L
author2_role author
author
author
author
author_facet Meikle, Ana
Garófalo, E.G
Rodríguez Piñón, Marcelo
Tasende Bolón, Celia
Sahlin, L
author_role author
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dc.contributor.filiacion.none.fl_str_mv Meikle Ana, Universidad de la República (Uruguay). Veterinary Faculty. Biochemistry, Molecular and Cellular Biology; Swedish University of Agricultural Sciences (Uppsala). Clinical Chemistry; Karolinska Institutet (Stockholm, Sweden). Department of Woman and Child Health. Division for Reproductive Endocrinology
Garófalo E.G, Universidad de la República (Uruguay). Veterinary Faculty. Biochemistry, Molecular and Cellular Biology
Rodríguez Piñón Marcelo, Universidad de la República (Uruguay). Veterinary Faculty. Biochemistry, Molecular and Cellular Biology
Tasende Bolón Celia, Universidad de la República (Uruguay). Veterinary Faculty. Biochemistry, Molecular and Cellular Biology
Sahlin L, Karolinska Institutet (Stockholm, Sweden). Department of Woman and Child Health. Division for Reproductive Endocrinology
dc.creator.none.fl_str_mv Meikle, Ana
Garófalo, E.G
Rodríguez Piñón, Marcelo
Tasende Bolón, Celia
Sahlin, L
dc.date.accessioned.none.fl_str_mv 2025-02-07T16:54:15Z
dc.date.available.none.fl_str_mv 2025-02-07T16:54:15Z
dc.date.issued.none.fl_str_mv 2001
dc.description.abstract.none.fl_txt_mv The regulation of estrogen and progesterone receptor (ER, PR) expression by estradiol (E2) and progesterone (P4) in the oviduct, uterus and cervix of female lambs was studied. The animals received three intramuscular injections of E2, P4 or vehicle with an interval of 24 h and they were slaugthered 24 h after the third injection. Determinations of ER and PR were performed by binding assays and mRNAs of ERα and PR by solution hybridization. High levels of ER and PR in both cervix and oviduct were found in the female lamb, differing from other mammalian species. No significant effects by either E2 or P4 treatment on ER and PR levels in the cervix and oviduct could be observed. E2 treatment increased the mRNA levels of ERa and PR more than 3-fold in the cervix, while P4 treatment increased the mRNA levels of ERa and PR in the uterus. The results show differential effects of gonadal steroids on sex steroid receptor expression along the reproductive tract in female lambs, suggesting that steroid target tissues can modulate responses to the same circulating levels of steroid hormones.
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dc.identifier.citation.es.fl_str_mv Meikle, A, Garófalo, E, Rodríguez Piñón, M, Tasende Bolón, C y Sahlin, L. Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs. Acta Veterinaria Scandinavica. [en línea] 2001, 42(1), 161-169
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12008/48268
dc.language.iso.none.fl_str_mv en
eng
dc.relation.none.fl_str_mv Acta Veterinaria Scandinavica, 2001, 42(1), 161-169
dc.rights.license.none.fl_str_mv Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
dc.source.none.fl_str_mv reponame:COLIBRI
instname:Universidad de la República
instacron:Universidad de la República
dc.subject.other.es.fl_str_mv ESTROGENO
PROGESTERONA
ESTEROIDES
RECEPTORES DE HORMONAS
CORDEROS
OVINOS
dc.title.none.fl_str_mv Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs
dc.type.es.fl_str_mv Artículo
dc.type.none.fl_str_mv info:eu-repo/semantics/article
dc.type.version.none.fl_str_mv info:eu-repo/semantics/publishedVersion
description The regulation of estrogen and progesterone receptor (ER, PR) expression by estradiol (E2) and progesterone (P4) in the oviduct, uterus and cervix of female lambs was studied. The animals received three intramuscular injections of E2, P4 or vehicle with an interval of 24 h and they were slaugthered 24 h after the third injection. Determinations of ER and PR were performed by binding assays and mRNAs of ERα and PR by solution hybridization. High levels of ER and PR in both cervix and oviduct were found in the female lamb, differing from other mammalian species. No significant effects by either E2 or P4 treatment on ER and PR levels in the cervix and oviduct could be observed. E2 treatment increased the mRNA levels of ERa and PR more than 3-fold in the cervix, while P4 treatment increased the mRNA levels of ERa and PR in the uterus. The results show differential effects of gonadal steroids on sex steroid receptor expression along the reproductive tract in female lambs, suggesting that steroid target tissues can modulate responses to the same circulating levels of steroid hormones.
eu_rights_str_mv openAccess
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identifier_str_mv Meikle, A, Garófalo, E, Rodríguez Piñón, M, Tasende Bolón, C y Sahlin, L. Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs. Acta Veterinaria Scandinavica. [en línea] 2001, 42(1), 161-169
instacron_str Universidad de la República
institution Universidad de la República
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language eng
language_invalid_str_mv en
network_acronym_str COLIBRI
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publishDate 2001
reponame_str COLIBRI
repository.mail.fl_str_mv karina.camps@seciu.edu.uy
repository.name.fl_str_mv COLIBRI - Universidad de la República
repository_id_str 4771
rights_invalid_str_mv Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
spelling Meikle Ana, Universidad de la República (Uruguay). Veterinary Faculty. Biochemistry, Molecular and Cellular Biology; Swedish University of Agricultural Sciences (Uppsala). Clinical Chemistry; Karolinska Institutet (Stockholm, Sweden). Department of Woman and Child Health. Division for Reproductive EndocrinologyGarófalo E.G, Universidad de la República (Uruguay). Veterinary Faculty. Biochemistry, Molecular and Cellular BiologyRodríguez Piñón Marcelo, Universidad de la República (Uruguay). Veterinary Faculty. Biochemistry, Molecular and Cellular BiologyTasende Bolón Celia, Universidad de la República (Uruguay). Veterinary Faculty. Biochemistry, Molecular and Cellular BiologySahlin L, Karolinska Institutet (Stockholm, Sweden). Department of Woman and Child Health. Division for Reproductive Endocrinology2025-02-07T16:54:15Z2025-02-07T16:54:15Z2001Meikle, A, Garófalo, E, Rodríguez Piñón, M, Tasende Bolón, C y Sahlin, L. Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs. Acta Veterinaria Scandinavica. [en línea] 2001, 42(1), 161-169https://hdl.handle.net/20.500.12008/48268The regulation of estrogen and progesterone receptor (ER, PR) expression by estradiol (E2) and progesterone (P4) in the oviduct, uterus and cervix of female lambs was studied. The animals received three intramuscular injections of E2, P4 or vehicle with an interval of 24 h and they were slaugthered 24 h after the third injection. Determinations of ER and PR were performed by binding assays and mRNAs of ERα and PR by solution hybridization. High levels of ER and PR in both cervix and oviduct were found in the female lamb, differing from other mammalian species. No significant effects by either E2 or P4 treatment on ER and PR levels in the cervix and oviduct could be observed. E2 treatment increased the mRNA levels of ERa and PR more than 3-fold in the cervix, while P4 treatment increased the mRNA levels of ERa and PR in the uterus. The results show differential effects of gonadal steroids on sex steroid receptor expression along the reproductive tract in female lambs, suggesting that steroid target tissues can modulate responses to the same circulating levels of steroid hormones.Submitted by García Alastra Leticia (lgarcia@fvet.edu.uy) on 2025-02-07T16:54:15Z No. of bitstreams: 2 license_rdf: 25790 bytes, checksum: 13adb202270a5f7cee03e795b33133c4 (MD5) RP1.pdf: 417612 bytes, checksum: db88455ff154afb355c00600b48f90e2 (MD5)Made available in DSpace by García Alastra Leticia (lgarcia@fvet.edu.uy) on 2025-02-07T16:54:15Z (GMT). No. of bitstreams: 2 license_rdf: 25790 bytes, checksum: 13adb202270a5f7cee03e795b33133c4 (MD5) RP1.pdf: 417612 bytes, checksum: db88455ff154afb355c00600b48f90e2 (MD5) Previous issue date: 20019 papplication/pdfenengActa Veterinaria Scandinavica, 2001, 42(1), 161-169Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. 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públicahttps://udelar.edu.uy/https://www.colibri.udelar.edu.uy/oai/requestkarina.camps@seciu.edu.uyUruguayopendoar:47712025-02-07T16:54:16COLIBRI - Universidad de la Repúblicafalse
spellingShingle Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs
Meikle, Ana
ESTROGENO
PROGESTERONA
ESTEROIDES
RECEPTORES DE HORMONAS
CORDEROS
OVINOS
status_str publishedVersion
title Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs
title_full Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs
title_fullStr Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs
title_full_unstemmed Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs
title_short Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs
title_sort Regulation by Gonadal Steroids of Estrogen and Progesterone Receptors Along the Reproductive Tract in Female Lambs
topic ESTROGENO
PROGESTERONA
ESTEROIDES
RECEPTORES DE HORMONAS
CORDEROS
OVINOS
url https://hdl.handle.net/20.500.12008/48268