Valle CM, Noa PM, Mendoza CS, Oyarzábal YA, Molina CV, Mendoza HN, Mas FR

Idioma: Ingles.
Referencias bibliográficas: 38
Paginas: 249-258
Archivo PDF: 150.13 Kb.

RESUMEN

Introducción: la integridad de la mucosa gástrica depende del balance entre los factores agresivos y defensivos. La úlcera inducida por aspirina es un modelo de daño por antiinflamatorios no esteroidales en el cual el infiltrado de neutrófilos desempeña una función fundamental.
Objetivo: evaluar el efecto protector del D-002 sobre la úlcera inducida por aspirina asociada al infiltrado de neutrófilos en la mucosa gástrica.
Métodos: las ratas fueron aleatorizadas en seis grupos de ocho animales cada uno. Un control negativo con vehículo y cinco grupos tratados con aspirina (300 mg/kg): un control positivo, tratado por vía oral con vehículo, tres grupos con D-002 (25, 50 and 100 mg/kg respectivamente) y otro con omeprazol 10 mg/kg. Cinco horas después de inducido el daño las ratas fueron sacrificadas y se extrajeron sus estómagos para su análisis morfológico. Se determinó el índice de úlcera, el número de úlceras microscópicas y el número de neutrófilos por área ulcerada.
Resultados: todos los controles positivos y ninguno negativo mostraron lesiones en la mucosa. El tratamiento por vía oral con D-002 (25-100 mg/kg) redujo de modo significativo y dependiente de la dosis el índice de úlceras gástricas (37-75 %), el promedio de úlceras microscópicas (40-72 %) y la infiltración de neutrófilos (41,7-83,1 %) en la mucosa de las ratas.
Conclusiones: el tratamiento por vía oral con D-002 (25-100 mg/kg) protege la mucosa gástrica de las ratas del daño inducido por aspirina, lo que disminuye el índice de úlcera y el infiltrado de neutrófilos.

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