title: Role of Glucocorticoids in Cystic Ovarian Disease: Expression of Glucocorticoid Receptor in the Bovine Ovary.
abstract: The aim of this study was to characterize the expression of glucocorticoid receptor (GR) in the components of normal bovine ovary and in animals with cystic ovarian disease (COD). Changes in the protein and mRNA expression levels were determined in control cows and cows with COD by immunohistochemistry and real-time PCR. GR protein expression in granulosa cells was higher in cysts from animals with spontaneous COD and adrenocorticotropic hormone-induced COD than in tertiary follicles from control animals. In theca interna cells, GR expression was higher in cysts from animals with spontaneous COD than in tertiary follicles from control animals. The increase in GR expression observed in cystic follicles suggests a mechanism of action for cortisol and its receptor through the activation/inactivation of specific transcription factors. These factors could be related to the pathogenesis of COD in cattle.
authors.affiliation: Laboratorio de Biologx00ED;a Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Cientx00ED;ficas y Tecnolx00F3;gicas (CONICET), Esperanza, Argentina.
authors.forename: Ayelen N
authors.initials: AN
authors.lastname: Amweg
authors.forename: Fernanda M
authors.initials: FM
authors.lastname: Rodríguez
authors.forename: Emilia
authors.initials: E
authors.lastname: Huber
authors.forename: Belkis E
authors.initials: BE
authors.lastname: Marelli
authors.forename: Natalia R
authors.initials: NR
authors.lastname: Salvetti
authors.forename: Florencia
authors.initials: F
authors.lastname: Rey
authors.forename: Hugo H
authors.initials: HH
authors.lastname: Ortega
mesh_terms: D000324:Adrenocorticotropic Hormone; D000818:Animals; D002417:Cattle; D005260:Female; D005786:Gene Expression Regulation; D006107:Granulosa Cells / Q000378:metabolism / Q000473:pathology; D010048:Ovarian Cysts / Q000139:chemically induced / Q000235:genetics / Q000473:pathology / Q000662:veterinary*; D006080:Ovarian Follicle / Q000378:metabolism / Q000473:pathology; D010053:Ovary / Q000378:metabolism / Q000473:pathology*; D012333:RNA, Messenger / Q000235:genetics; D011965:Receptors, Glucocorticoid / Q000032:analysis* / Q000235:genetics*
chemical_list: D012333:RNA, Messenger; D011965:Receptors, Glucocorticoid; D000324:Adrenocorticotropic Hormone