Effect of sildenafil in renal ischemia/reperfusion injury in rats
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Cirúrgica Brasileira (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502010000600006 |
Resumo: | PURPOSE: To evaluate the effect of sildenafil, administered prior to renal ischemia/reperfusion (I/R), by scintigraphy and histopathological evaluation in rats. METHODS: Twenty-four rats were divided randomly into two groups. They received 0.1 ml of 99mTechnetium-etilenodicisteine intravenous, and a baseline (initial) renal scintigraphy was performed. The rats underwent 60 minutes of ischemia by left renal artery clamping. The right kidney was not manipulated. The sildenafil group (n=12) received orally 1 mg/kg of sildenafil suspension 60 minutes before ischemia. Treatment with saline 0.9% in the control group (n=12). Half of the rats was assessed after 24 hours and half after seven days I/R, with new renal scintigraphy to study differential function. After euthanasia, kidneys were removed and subjected to histopathological examination. For statistical evaluation, Student t and Mann-Whitney tests were used. RESULTS: In the control group rats, the left kidneys had significant functional deficit, seven days after I/R, whose scintigraphic pattern was consistent with acute tubular necrosis, compared with the initial scintigraphy (p<0.05). Sildenafil treatment resulted in better differential function of the left kidneys 24h after reperfusion, compared with controls. Histopathologically, the left kidney of control rats (24 hours after I/R) showed a higher degree of cellular necrosis when compared with the sildenafil treated rats (p<0.05). CONCLUSION: Sildenafil had a protective effect in rat kidneys subjected to normothermic I/R, demonstrated by scintigraphy and histomorphometry. |
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Effect of sildenafil in renal ischemia/reperfusion injury in ratsIschemiaReperfusionKidneyRadionuclide ImagingTechnetium Tc 99m MertiatideRatsPURPOSE: To evaluate the effect of sildenafil, administered prior to renal ischemia/reperfusion (I/R), by scintigraphy and histopathological evaluation in rats. METHODS: Twenty-four rats were divided randomly into two groups. They received 0.1 ml of 99mTechnetium-etilenodicisteine intravenous, and a baseline (initial) renal scintigraphy was performed. The rats underwent 60 minutes of ischemia by left renal artery clamping. The right kidney was not manipulated. The sildenafil group (n=12) received orally 1 mg/kg of sildenafil suspension 60 minutes before ischemia. Treatment with saline 0.9% in the control group (n=12). Half of the rats was assessed after 24 hours and half after seven days I/R, with new renal scintigraphy to study differential function. After euthanasia, kidneys were removed and subjected to histopathological examination. For statistical evaluation, Student t and Mann-Whitney tests were used. RESULTS: In the control group rats, the left kidneys had significant functional deficit, seven days after I/R, whose scintigraphic pattern was consistent with acute tubular necrosis, compared with the initial scintigraphy (p<0.05). Sildenafil treatment resulted in better differential function of the left kidneys 24h after reperfusion, compared with controls. Histopathologically, the left kidney of control rats (24 hours after I/R) showed a higher degree of cellular necrosis when compared with the sildenafil treated rats (p<0.05). CONCLUSION: Sildenafil had a protective effect in rat kidneys subjected to normothermic I/R, demonstrated by scintigraphy and histomorphometry.Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia2010-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502010000600006Acta Cirúrgica Brasileira v.25 n.6 2010reponame:Acta Cirúrgica Brasileira (Online)instname:Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (SBDPC)instacron:SBDPC10.1590/S0102-86502010000600006info:eu-repo/semantics/openAccessMedeiros,Paulo José deVillarim Neto,ArthurLima,Francisco PignataroAzevedo,Ítalo MedeirosLeão,Layra Ribeiro de SousaMedeiros,Aldo Cunhaeng2010-11-19T00:00:00Zoai:scielo:S0102-86502010000600006Revistahttps://www.bvs-vet.org.br/vetindex/periodicos/acta-cirurgica-brasileira/https://old.scielo.br/oai/scielo-oai.php||sgolden@terra.com.br0102-86501678-2674opendoar:2010-11-19T00:00Acta Cirúrgica Brasileira (Online) - Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (SBDPC)false |
dc.title.none.fl_str_mv |
Effect of sildenafil in renal ischemia/reperfusion injury in rats |
title |
Effect of sildenafil in renal ischemia/reperfusion injury in rats |
spellingShingle |
Effect of sildenafil in renal ischemia/reperfusion injury in rats Medeiros,Paulo José de Ischemia Reperfusion Kidney Radionuclide Imaging Technetium Tc 99m Mertiatide Rats |
title_short |
Effect of sildenafil in renal ischemia/reperfusion injury in rats |
title_full |
Effect of sildenafil in renal ischemia/reperfusion injury in rats |
title_fullStr |
Effect of sildenafil in renal ischemia/reperfusion injury in rats |
title_full_unstemmed |
Effect of sildenafil in renal ischemia/reperfusion injury in rats |
title_sort |
Effect of sildenafil in renal ischemia/reperfusion injury in rats |
author |
Medeiros,Paulo José de |
author_facet |
Medeiros,Paulo José de Villarim Neto,Arthur Lima,Francisco Pignataro Azevedo,Ítalo Medeiros Leão,Layra Ribeiro de Sousa Medeiros,Aldo Cunha |
author_role |
author |
author2 |
Villarim Neto,Arthur Lima,Francisco Pignataro Azevedo,Ítalo Medeiros Leão,Layra Ribeiro de Sousa Medeiros,Aldo Cunha |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Medeiros,Paulo José de Villarim Neto,Arthur Lima,Francisco Pignataro Azevedo,Ítalo Medeiros Leão,Layra Ribeiro de Sousa Medeiros,Aldo Cunha |
dc.subject.por.fl_str_mv |
Ischemia Reperfusion Kidney Radionuclide Imaging Technetium Tc 99m Mertiatide Rats |
topic |
Ischemia Reperfusion Kidney Radionuclide Imaging Technetium Tc 99m Mertiatide Rats |
description |
PURPOSE: To evaluate the effect of sildenafil, administered prior to renal ischemia/reperfusion (I/R), by scintigraphy and histopathological evaluation in rats. METHODS: Twenty-four rats were divided randomly into two groups. They received 0.1 ml of 99mTechnetium-etilenodicisteine intravenous, and a baseline (initial) renal scintigraphy was performed. The rats underwent 60 minutes of ischemia by left renal artery clamping. The right kidney was not manipulated. The sildenafil group (n=12) received orally 1 mg/kg of sildenafil suspension 60 minutes before ischemia. Treatment with saline 0.9% in the control group (n=12). Half of the rats was assessed after 24 hours and half after seven days I/R, with new renal scintigraphy to study differential function. After euthanasia, kidneys were removed and subjected to histopathological examination. For statistical evaluation, Student t and Mann-Whitney tests were used. RESULTS: In the control group rats, the left kidneys had significant functional deficit, seven days after I/R, whose scintigraphic pattern was consistent with acute tubular necrosis, compared with the initial scintigraphy (p<0.05). Sildenafil treatment resulted in better differential function of the left kidneys 24h after reperfusion, compared with controls. Histopathologically, the left kidney of control rats (24 hours after I/R) showed a higher degree of cellular necrosis when compared with the sildenafil treated rats (p<0.05). CONCLUSION: Sildenafil had a protective effect in rat kidneys subjected to normothermic I/R, demonstrated by scintigraphy and histomorphometry. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-12-01 |
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=S0102-86502010000600006 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502010000600006 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0102-86502010000600006 |
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 para o Desenvolvimento da Pesquisa em Cirurgia |
publisher.none.fl_str_mv |
Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia |
dc.source.none.fl_str_mv |
Acta Cirúrgica Brasileira v.25 n.6 2010 reponame:Acta Cirúrgica Brasileira (Online) instname:Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (SBDPC) instacron:SBDPC |
instname_str |
Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (SBDPC) |
instacron_str |
SBDPC |
institution |
SBDPC |
reponame_str |
Acta Cirúrgica Brasileira (Online) |
collection |
Acta Cirúrgica Brasileira (Online) |
repository.name.fl_str_mv |
Acta Cirúrgica Brasileira (Online) - Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (SBDPC) |
repository.mail.fl_str_mv |
||sgolden@terra.com.br |
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1752126440051048448 |