Protective effect of the nitric oxide donor molsidomine on indomethacin and aspirin-induced gastric injury in rats.
Eur J Gastroenterol Hepatol
; 12(1): 81-4, 2000 Jan.
Article
em En
| MEDLINE
| ID: mdl-10656215
ABSTRACT
OBJECTIVE:
To study the effect of the nitric oxide donor, molsidomine, on gastric and duodenal injury induced by indomethacin and aspirin.METHODS:
Sprague-Dawley rats weighing 180-200 g were used after 24 h fasting. Indomethacin (5 mg/kg) was given subcutaneously as a single dose and followed by multiple injections of histamine. Molsidomine (0.05 mg/kg) or distilled water was given by gavage 30 min before indomethacin and repeated at 3 h intervals for two doses. Rats were killed 2 h after the last dose of molsidomine. Aspirin (500 mg/kg) was given by gavage and repeated 2.5 h later. Molsidomine or distilled water was given 30 min before the initial aspirin dose and repeated after 2 h. Animals were killed 2.5 h after the second dose of aspirin. The severity of the gastric mucosal damage was graded from 0 to 3, and the duodenal bulb ulcer surface area calculated by two independent observers using a dissecting microscope.RESULTS:
Indomethacin and aspirin resulted in significant gastric mucosal damage with median scores of 2 (interquartile ranges 1.4-3, n = 16 and 2-3, n = 10, respectively). Molsidomine significantly ameliorated indomethacin- and aspirin-induced damage with median scores of 1 (interquartile ranges 0.5-1.5, n = 19 and 0.6-1.9, n = 10, respectively; P<0.008 and P<0.02, respectively (Mann-Whitney Utest)). Molsidomine had no effect on duodenal bulb ulcerations caused by indomethacin.CONCLUSION:
Oral molsidomine has a protective effect on gastric mucosa against damage induced by ulcerogenic agents. This could have an important clinical benefit, especially in cardiac patients taking aspirin in addition to a nitric oxide donor such as molsidomine.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Úlcera Gástrica
/
Molsidomina
/
Anti-Inflamatórios não Esteroides
/
Doadores de Óxido Nítrico
/
Úlcera Duodenal
/
Mucosa Gástrica
Limite:
Animals
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article