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| Graça,J.R.V; Macedo,G.M; Palheta Jr,R.C; Gondim,F. de A.A; Nogueira,R.O; Correia,J.M; Rola,F.H; Oliveira,R.B; Souza,M.A.N; Santos,A.A. |
| Sildenafil slows down the gastric emptying of a liquid test meal in awake rats and inhibits the contractility of intestinal tissue strips. We studied the acute effects of sildenafil on in vivo intestinal transit in rats. Fasted, male albino rats (180-220 g, N = 44) were treated (0.2 mL, iv) with sildenafil (4 mg/kg) or vehicle (0.01 N HCl). Ten minutes later they were fed a liquid test meal (99m technetium-labeled saline) injected directly into the duodenum. Twenty, 30 or 40 min after feeding, the rats were killed and transit throughout the gastrointestinal tract was evaluated by progression of the radiotracer using the geometric center method. The effect of sildenafil on mean arterial pressure (MAP) was monitored in a separate group of rats (N = 14). Data... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Intestinal transit; Mean arterial pressure; Scintigraphy; Sildenafil. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000100012 |
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