Histological and histochemical changes of the intestinal mucosa at the urothelial-enteric anastomotic site
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | International Braz J Urol (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382006000200017 |
Resumo: | OBJECTIVE: The incorporation of bowel segments for urinary tract reconstruction may induce intestinal mucosal changes with the development of metabolic, nutritional, gastrointestinal and carcinogenic complications. The early histological and histochemical changes of the intestinal mucosa in contact with the feces-urine mixture, are evaluated in the present study. MATERIALS AND METHODS: Twelve rats (operated group) were submitted to a vesico-colonic anastomosis, and 10 rats (control group) underwent a sham operation (the colon was opened and immediately sutured). On the operated group, the left colon was divided into 3 equal portions and the middle segment was used for the bladder-colonic anastomosis. After 20 weeks, the animals were sacrificed and the entire left colon in each group, as well as the bladder and the vesico-colonic anastomosis in the operated group, was removed. The proximal, middle (anastomotic site in the operated group and sutured portion in the control group) and distal colon were used for histological and histochemical studies. RESULTS: Metaplasia, chronic inflammatory process and fibrosis were significantly greater at the anastomotic site compared to the middle segment of the control group. There were no differences in both groups in terms of dysplasia, atrophy and hypertrophy either on the proximal, middle or anastomotic area and distal portion of the left colon. All animals in the operated group showed a reduced presence of sulfomucin and an increase in the sialomucin content. CONCLUSION: The histological changes observed in this study may suggest a precancerous phenomenon. |
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Histological and histochemical changes of the intestinal mucosa at the urothelial-enteric anastomotic siteurinary diversioncolonic urinary reservoirsmucinscarcinogensratsOBJECTIVE: The incorporation of bowel segments for urinary tract reconstruction may induce intestinal mucosal changes with the development of metabolic, nutritional, gastrointestinal and carcinogenic complications. The early histological and histochemical changes of the intestinal mucosa in contact with the feces-urine mixture, are evaluated in the present study. MATERIALS AND METHODS: Twelve rats (operated group) were submitted to a vesico-colonic anastomosis, and 10 rats (control group) underwent a sham operation (the colon was opened and immediately sutured). On the operated group, the left colon was divided into 3 equal portions and the middle segment was used for the bladder-colonic anastomosis. After 20 weeks, the animals were sacrificed and the entire left colon in each group, as well as the bladder and the vesico-colonic anastomosis in the operated group, was removed. The proximal, middle (anastomotic site in the operated group and sutured portion in the control group) and distal colon were used for histological and histochemical studies. RESULTS: Metaplasia, chronic inflammatory process and fibrosis were significantly greater at the anastomotic site compared to the middle segment of the control group. There were no differences in both groups in terms of dysplasia, atrophy and hypertrophy either on the proximal, middle or anastomotic area and distal portion of the left colon. All animals in the operated group showed a reduced presence of sulfomucin and an increase in the sialomucin content. CONCLUSION: The histological changes observed in this study may suggest a precancerous phenomenon.Sociedade Brasileira de Urologia2006-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382006000200017International braz j urol v.32 n.2 2006reponame:International Braz J Urol (Online)instname:Sociedade Brasileira de Urologia (SBU)instacron:SBU10.1590/S1677-55382006000200017info:eu-repo/semantics/openAccessCastro,Marcos A.Ferreira,UbirajaraMartins,Mario H.Stoppiglia,Rafael M.Rodrigues Netto Jr.,N.eng2006-06-08T00:00:00Zoai:scielo:S1677-55382006000200017Revistahttp://www.brazjurol.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||brazjurol@brazjurol.com.br1677-61191677-5538opendoar:2006-06-08T00:00International Braz J Urol (Online) - Sociedade Brasileira de Urologia (SBU)false |
dc.title.none.fl_str_mv |
Histological and histochemical changes of the intestinal mucosa at the urothelial-enteric anastomotic site |
title |
Histological and histochemical changes of the intestinal mucosa at the urothelial-enteric anastomotic site |
spellingShingle |
Histological and histochemical changes of the intestinal mucosa at the urothelial-enteric anastomotic site Castro,Marcos A. urinary diversion colonic urinary reservoirs mucins carcinogens rats |
title_short |
Histological and histochemical changes of the intestinal mucosa at the urothelial-enteric anastomotic site |
title_full |
Histological and histochemical changes of the intestinal mucosa at the urothelial-enteric anastomotic site |
title_fullStr |
Histological and histochemical changes of the intestinal mucosa at the urothelial-enteric anastomotic site |
title_full_unstemmed |
Histological and histochemical changes of the intestinal mucosa at the urothelial-enteric anastomotic site |
title_sort |
Histological and histochemical changes of the intestinal mucosa at the urothelial-enteric anastomotic site |
author |
Castro,Marcos A. |
author_facet |
Castro,Marcos A. Ferreira,Ubirajara Martins,Mario H. Stoppiglia,Rafael M. Rodrigues Netto Jr.,N. |
author_role |
author |
author2 |
Ferreira,Ubirajara Martins,Mario H. Stoppiglia,Rafael M. Rodrigues Netto Jr.,N. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Castro,Marcos A. Ferreira,Ubirajara Martins,Mario H. Stoppiglia,Rafael M. Rodrigues Netto Jr.,N. |
dc.subject.por.fl_str_mv |
urinary diversion colonic urinary reservoirs mucins carcinogens rats |
topic |
urinary diversion colonic urinary reservoirs mucins carcinogens rats |
description |
OBJECTIVE: The incorporation of bowel segments for urinary tract reconstruction may induce intestinal mucosal changes with the development of metabolic, nutritional, gastrointestinal and carcinogenic complications. The early histological and histochemical changes of the intestinal mucosa in contact with the feces-urine mixture, are evaluated in the present study. MATERIALS AND METHODS: Twelve rats (operated group) were submitted to a vesico-colonic anastomosis, and 10 rats (control group) underwent a sham operation (the colon was opened and immediately sutured). On the operated group, the left colon was divided into 3 equal portions and the middle segment was used for the bladder-colonic anastomosis. After 20 weeks, the animals were sacrificed and the entire left colon in each group, as well as the bladder and the vesico-colonic anastomosis in the operated group, was removed. The proximal, middle (anastomotic site in the operated group and sutured portion in the control group) and distal colon were used for histological and histochemical studies. RESULTS: Metaplasia, chronic inflammatory process and fibrosis were significantly greater at the anastomotic site compared to the middle segment of the control group. There were no differences in both groups in terms of dysplasia, atrophy and hypertrophy either on the proximal, middle or anastomotic area and distal portion of the left colon. All animals in the operated group showed a reduced presence of sulfomucin and an increase in the sialomucin content. CONCLUSION: The histological changes observed in this study may suggest a precancerous phenomenon. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-04-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382006000200017 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1677-55382006000200017 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1677-55382006000200017 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Urologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Urologia |
dc.source.none.fl_str_mv |
International braz j urol v.32 n.2 2006 reponame:International Braz J Urol (Online) instname:Sociedade Brasileira de Urologia (SBU) instacron:SBU |
instname_str |
Sociedade Brasileira de Urologia (SBU) |
instacron_str |
SBU |
institution |
SBU |
reponame_str |
International Braz J Urol (Online) |
collection |
International Braz J Urol (Online) |
repository.name.fl_str_mv |
International Braz J Urol (Online) - Sociedade Brasileira de Urologia (SBU) |
repository.mail.fl_str_mv |
||brazjurol@brazjurol.com.br |
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1750318069764325376 |