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Master's Dissertation
DOI
https://doi.org/10.11606/D.5.2015.tde-08122015-095337
Document
Author
Full name
Pedro Ricardo de Mesquita Coutinho
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2015
Supervisor
Committee
Barros Filho, Tarcisio Eloy Pessoa de (President)
Bolliger Neto, Raul
Reis, Fernando Baldy dos
Title in Portuguese
Avaliação do efeito do tacrolimo e da eritropoetina na lesão medular experimental em ratos
Keywords in Portuguese
Eritropoetina
Neuroimunomodulação/efeitos de drogas
Ratos
Sistema nervoso central/lesões
Tacrolimo
Traumatismos da medula espinal
Abstract in Portuguese
Os efeitos farmacológicos da eritropoetina (EPO) e do tacrolimo (FK 506) têm sido investigados no tratamento da lesão medular, mas são escassos os trabalhos que avaliam a interação entre essas drogas. Neste estudo experimental, 60 ratos Wistar foram submetidos a lesão contusa da medula espinal produzida pelo sistema NYU Impactor. Os animais foram divididos em cinco grupos, sendo: Controle, que recebeu soro fisiológico; EPO, que recebeu eritropoetina; o EPO + FK 506 recebeu EPO associada ao tacrolimo; o FK 506 recebeu tacrolimo. Todas as drogas e o soro fisiológico foram administrados por via intraperitoneal. O grupo Sham foi submetido à lesão medular, mas não recebeu nenhuma droga. Os animais foram avaliados quanto à recuperação da função locomotora em sete diferentes momentos pelo teste de BBB no 2o, 7o, 14o, 21o, 28o, 35o e 42o dias após lesão contusa na medula espinal. No 42o dia, foi realizada avaliação eletrofisiológica dos animais que, logo após, foram sacrificados para análise dos achados histológicos da medula lesionada. Nosso projeto experimental não revelou diferenças na recuperação da função locomotora, nas análises histológica e eletrofisiológica nos animais submetidos ao tratamento farmacológico com eritropoetina e com tacrolimo, após contusão medular torácica
Title in English
Effects of tacrolimus and erythropoietin in experimental spinal cord lesion in rats
Keywords in English
Central nervous system/injuries
Erythropoietin
Neuroimmunomodulation/drug effects
Rats
Spinal cord injuries
Tacrolimus
Abstract in English
The pharmacological effects of erythropoietin (EPO) and tacrolimus (FK 506) have been investigated in the treatment of spinal cord injuries, but there are few studies that evaluate the interaction between these drugs. In this experimental study, 60 Wistar rats were submitted to contusion spinal cord injury produced by the NYU Impactor system. The animals were divided into five groups: Control, which received saline only; EPO, which received erythropoietin; EPO + FK 506, which received EPO associated with tacrolimus; and the group FK 506, which received tacrolimus. All drugs and saline were administered intraperitoneally. The Sham group underwent spinal cord injury, but did not receive any drug. The animals were evaluated for recovery of locomotor function in seven different times by the BBB test, in the 2nd, 7th, 14th, 21st, 28th, 35th and 42nd days after spinal cord injury. In 42 days, electrophysiological evaluation was performed, and the animals were, shortly after, sacrificed for histological analysis of the injured spinal cord. Our experimental study did not reveal significant differences in the recovery of locomotor function, nor in the histological and electrophysiological analysis in animals treated with erythropoietin and tacrolimus after thoracic spinal cord injury
 
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Publishing Date
2015-12-08
 
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