• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
https://doi.org/10.11606/D.17.2017.tde-10012017-110614
Document
Author
Full name
João Paulo da Cunha
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Ribeirão Preto, 2016
Supervisor
Committee
Tucci Junior, Silvio (President)
Bessa Junior, José de
Tirapelli, Daniela Pretti da Cunha
Title in Portuguese
Expressão do microRNA-27b, eNOS e iNOS nos corpos cavernosos de ratos submetidos ao alcoolismo e diabetes mellitus
Keywords in Portuguese
Alcoolismo
Corpus cavernosum
Diabetes
Disfunção erétil
eNOS
iNOS
microRNA
Abstract in Portuguese
A Disfunção Erétil (DE) é um problema de elevada prevalência e mostra-se relacionada com o envelhecimento, diabetes, etilismo, obesidade, dislipidemia, tabagismo e outras doenças que se demonstram relacionadas com disfunção endotelial. O Óxido Nítrico (NO), produto da ação da Óxido Nítrico Sintetase (NOS), foi comprovado ser o mais importante vasodilatador de musculatura lisa associado à ereção. Os microRNAs (miRNA) são moléculas recentemente descobertas, que supõe-se atuar como reguladoras de aproximadamente um terço dos genes humanos. O miRNA-27b está relacionado à função endotelial e angiogênese. O presente trabalho tem por objetivo estudar a expressão da NOS endotelial (eNOS) e indutível iNOS), além do miRNA-27b nos corpos cavernosos e sangue periférico de ratos saudáveis, diabéticos, alcoolizados e com as duas patologias. Foram criados 4 grupos de 12 ratos Winstar: grupo controle(saudáveis) (C), grupo com alcoolismo (A), grupo diabético (D) e grupo com as duas patologias (A+D). Em cada grupo, 6 animais foram estudados pors imunohistoquimica para eNOS e iNOS e 6 animais tiveram a expressão gênica da eNOS, iNOS e miRNA-27b avaliados por qT-PCR nos corpos cavernosos e sangue periférico. Os resultados demonstraram diminuição da expressão do miRNA-27b nos grupos A, D e A+D tanto na amostra tecidual quanto do sangue periférico. A imunohistoquimica mostrou maior expressão de eNOS no grupo D+A e de iNOS nos grupos A e A+D.
Title in English
Expression of microRNA-27B, eNOS and iNOSin the corpus cavernosumof rats submitted to alcoholism and to diabetes mellitus
Keywords in English
Alcoholism
Corpus cavernosoum
Diabetes
eNOS
Erectile disfunction
iNOS
MicroRNA
Abstract in English
Erectile Dysfunction (ED) is a high prevalence problem and appears to be related to aging, diabetes, alcoholism, obesity, dyslipidemia, smoking and other diseases that show related to endothelial dysfunction. Nitric oxide (NO), a product of Nitric Oxide Synthase (NOS), was shown to be the most important vasodilator of smooth muscles associated with the erection. Micro-RNAs (miRNA) are recently discovered molecules which are supposed to act as regulators of approximately one third of human genes. The miRNA-27b is related to endothelial function and angiogenesis. This work aims to study the expression of endothelial and inducible NOS in addition to the miRNA-27b in the corpus cavernosum and peripheral blood of healthy rats, diabetic, alcoholic and with both pathologies. Were created four groups of 12 rats Winstar: control group (healthy) (C), a group with alcoholism (A), diabetic group (D) and group with both disorders (A + D). In each group 6 animals were studied for eNOS and iNOS immunohistochemistry and 6 animals the gene expression of eNOS, iNOS and miRNA-27b evaluated by qT-PCR in the corpus cavernosum and peripheral blood. The results showed increase expression of miRNA-27b in Group A, D and A+D in both the tissue sample and peripheral blood. Immunohistochemistry showed a increase of eNOS expression in group A+D and iNOS high expression in groups A and A+D.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Joao.pdf (1.42 Mbytes)
Publishing Date
2017-03-30
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.