Effects of melatonin on anti-oxidative function of lung injury induced by lipopolysaccharide in rats and ICAM-1 expression / 中国应用生理学杂志
Chinese Journal of Applied Physiology
;
(6): 464-467, 2008.
Artículo
en Chino
| WPRIM
| ID: wpr-252739
ABSTRACT
<p><b>AIM</b>To investigate the protective effect of melatonin (MT) on lung tissues during acute lung injury (ALI) in rats and its possible mechanism.</p><p><b>METHODS</b>All rats were randomly divided into four groups control group, lipopolysaccharide (LPS) group, dexamethasone (DEX) and MT treatment group. Myeloperoxidase (MPO) activity, superoxide dismutase (SOD) activity and malonaldehyde (MDA) content of lung tissues were detected at 3, 6 and 12 h after intratracheal instillation in each group. In addition, the expression of intercellular adhesion molecule-1 (ICAM-1) were observed through immunohistochemistry staining in lung tissues.</p><p><b>RESULTS</b>Compared with control group, SOD activity decreased significantly in LPS group (P < 0.01), but MPO activity,MDA content and the expression of ICAM-1 increased obviously (P < 0.01). The administration of MT and DEX mitigated above changes significantly (P < 0.05 or P < 0.01).</p><p><b>CONCLUSION</b>MT possessed protective effect on lung tissues during ALI through scavenging free radicals and inhibiting the expression of ICAM-1 probably.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Farmacología
/
Superóxido Dismutasa
/
Distribución Aleatoria
/
Lipopolisacáridos
/
Ratas Sprague-Dawley
/
Peroxidasa
/
Molécula 1 de Adhesión Intercelular
/
Sustancias Protectoras
/
Lesión Pulmonar Aguda
/
Genética
Límite:
Animales
Idioma:
Chino
Revista:
Chinese Journal of Applied Physiology
Año:
2008
Tipo del documento:
Artículo
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