Senescence And Steroid Hormone Receptor Reactivities In Accessory Sex Glands Of Elderly Rats (sprague-dawley) Following Exogenous Hormonal Therapy.

dc.creatorCândido, Eduardo Marcelo
dc.creatorFávaro, Wagner José
dc.creatorMontico, Fabio
dc.creatorHetzl, Amanda Cia
dc.creatorCagnon, Valéria Helena Alves
dc.date2012-Aug
dc.date2015-11-27T13:28:28Z
dc.date2015-11-27T13:28:28Z
dc.date.accessioned2018-03-29T01:15:16Z
dc.date.available2018-03-29T01:15:16Z
dc.identifierTissue & Cell. v. 44, n. 4, p. 227-37, 2012-Aug.
dc.identifier1532-3072
dc.identifier10.1016/j.tice.2012.03.007
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/22541803
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/199985
dc.identifier22541803
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1300218
dc.descriptionThe aim of this study was to characterize the stromal and epithelial distribution of AR, ERα and ERβ reactivities in the different accessory sex glands of elderly rats and during strong hormonal changes. Ten month old male rats were divided into six senile groups and submitted to treatment: Senile/Control group (SC); Senile/Testosterone group (ST): Senile/Estrogen group (SE); Castrated group (CA); Castrated/Testosterone group (CT); Castrated/Estrogen group (CE). After a 30-day treatment, the prostatic ventral lobe (VL), dorsal lobe (DL) and coagulating gland (CG) samples were processed for immunohistochemistry and Western Blotting. The results showed that AR immunoreactivity was characterized in the epithelium of VL and DL in senile/control rats and senile rats submitted to exogenous hormonal therapy. AR reactivity in the coagulating gland was verified predominantly in the stromal cells in the different experimental groups. ERα reactivity occurred predominantly in the stromal compartment in all accessory sex glands. In the DL and CG, ERα immunoreactivities were intense in the groups which received testosterone (ST) and estrogen (SE). ERβ immunoreactivity in the CG was verified in the stromal compartment in the different experimental groups, showing a positive response to both increased testosterone and estrogen levels. ERβ reactivity, in the DL, was intensified in the stroma of senile rats with higher serum testosterone levels, and in senile rats with increased serum estrogen levels, especially in the glandular epithelium. Thus, the results revealed different distribution pattern of steroid hormone receptors in each one of the prostatic lobes in senescence, especially in the prostate dorsal lobe and coagulating gland, which is a fundamental factor due to the fact that major prostatic diseases occur in a later period of life.
dc.description44
dc.description227-37
dc.languageeng
dc.relationTissue & Cell
dc.relationTissue Cell
dc.rightsfechado
dc.rightsPublished by Elsevier Ltd.
dc.sourcePubMed
dc.subjectAging
dc.subjectAnimals
dc.subjectBlotting, Western
dc.subjectEstrogen Receptor Alpha
dc.subjectEstrogen Receptor Beta
dc.subjectEstrogens
dc.subjectGenitalia, Male
dc.subjectImmunohistochemistry
dc.subjectMale
dc.subjectProstate
dc.subjectRats
dc.subjectRats, Sprague-dawley
dc.subjectReceptors, Androgen
dc.subjectReceptors, Steroid
dc.subjectTestosterone
dc.titleSenescence And Steroid Hormone Receptor Reactivities In Accessory Sex Glands Of Elderly Rats (sprague-dawley) Following Exogenous Hormonal Therapy.
dc.typeArtículos de revistas


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