Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/326877
Type: Artigo
Title: Neonatal Exposure To Ethinylestradiol Increases Ventral Prostate Growth And Promotes Epithelial Hyperplasia And Inflammation In Adult Male Gerbils
Author: Falleiros-Junior
Luiz R.; Perez
Ana P. S.; Taboga
Sebastiao R.; dos Santos
Fernanda C. A.; Vilamaior
Patricia S. L.
Abstract: The aim of this study was to analyse morphologically the ventral prostate of adult Mongolian gerbils exposed to ethinylestradiol (EE) during the first week of postnatal development. Lactating females received daily, by gavage, doses of 10 mu g/kg of EE diluted in 100 mu l of mineral oil from the 1st to 10th postnatal day of the pups (EE group). In the control group (C), the lactating females received only the vehicle. Upon completing 120 days of age, the male offspring were euthanized and the prostates collected for analyses. We employed morphological, stereological-morphometrical, immunohistochemical and ultrastructural methods. The results showed that the postnatal exposure to EE doubled the prostatic complex weight, increasing the epithelial and stromal compartments, in addition to the secretory activity of the ventral lobe of the prostate. All glands exposed to EE showed strong stromal remodelling, and some foci of epithelial hyperplasia and inflammatory infiltrate in both luminal and epithelial or stromal compartments. Cells positive for anti-AR and antiPCNA reactions increased into the epithelial and stromal tissues. ER alpha-positive cells, which are normally found in the stromal compartment of intact prostates, were frequently observed in the prostatic epithelium of treated animals. This study demonstrated that the exposure to EE during postnatal development causes histophysiological alterations in this gland, predisposing to the development of prostatic lesions during life. These results are important for public health, considering that women worldwide have commonly used EE. Moreover, the bioaccumulation of this chemical has increased in different ecosystems.
Subject: Androgen Receptor
Endocrine-disrupting Chemicals
Ethinylestradiol
Gerbil
Neonatal Prostate Development
Editor: Wiley-Blackwell
Hoboken
Rights: fechado
Identifier DOI: 10.1111/iep.12208
Address: http://onlinelibrary-wiley-com.ez88.periodicos.capes.gov.br/doi/10.1111/iep.12208/abstract?systemMessage=Wiley+Online+Library+will+be+unavailable+on+Saturday+12th+August+at+3%3A00+EDT+%2F+8%3A00+BST+%2F+12%3A30+IST+%2F+15%3A00+SGT+for+4+hours+for+essential+maintenance.+Apologies+for+the+inconvenience.
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
000392018800041.pdf1.11 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.