A comparative study of pentoxifylline effects in adult and aged rats submitted to lung dysfunction by thermal injury
Ramallo, Bianca Trovello; Lourenço, Elizete; Cruz, Renata Harumi; Almeida, Jacqueline Camargo; Taha, Murched Omar; Silva, Priscilla Yuri Okochi Alves; Oliveira-Júnior, Itamar Souza.
Acta cir. bras.;
28(2): 154-159, 2013. ilus, graf
Artigo
em Inglês
| VETINDEX
| ID: vti-8947
Resumo
PURPOSE: To investigate the protective effects of pentoxifylline against lung injury observed after dorsal scald in aged animals. METHODS: Adult (eight months old) and aged (20 months old) rats were subjected to thermal injury or sham procedure. The six hours post-trauma animals received pentoxifylline and after 24 hours were euthanatized and lung tissue samples collectedted. The bronchoalveolar lavage fluid was evaluated for total protein content and tumor necrosis factor-alpha cytokine. Malondialdehyde and myeloperoxidase activety in the lung homogenate were measured and a histological lung examination was undertaken. RESULTS: Burn injury induced oxidative stress in lung homogenate was higher in elderly-burned rats compared to adult-burned rats (p<0.001). Total protein and cytokine in bronchoalveolar lavage increased in the elderly-burned group when compared to the adult-burned group (p<0.001). All parameters decreased in bolth groups treated with pentoxifylline (p<0.05). CONCLUSIONS: The injury was augmented in elderly rats when compared to adult rats. Damage was reduced with the use of pentoxifylline, however further studies are needed to evaluate the dose-response of the drug.(AU)
Biblioteca responsável:
BR1.1
Localização: BR68.1
Texto completo