Protective and antioxidant properties of wasp (Vespa magnifica) honeycomb extract: a potential inhibitor against acidified ethanol-induced gastric lesions / 南方医科大学学报
Journal of Southern Medical University
;
(12): 1107-1110, 2011.
Artículo
en Inglés
| WPRIM
| ID: wpr-235184
ABSTRACT
<p><b>OBJECTIVE</b>To examine the protective effects of wasp (Vespa magnifica) honeycomb extract (WCE) against gastric lesions in rats induced by 60% acidified ethanol, and evaluate its capacity to suppress oxidative stress in the gastric tissue.</p><p><b>METHODS</b>Wistar rats were subjected to intragastric administration of 60% acidified ethanol to induce gastric lesions following an 8-day oral pretreatment with WCE at 0, 25, 100 and 150 mg/kg or with saline. The levels of 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging, myeloperoxidase (MPO) activity and total antioxidant capacity in the gastric tissues were determined.</p><p><b>RESULTS</b>Oral administration of 25, 100 and 150 mg/kg WCE prior to 60% acidified ethanol administration significantly inhibited the formation of gastric lesions (with a reduction by 44.2%-87.1%), decreased the mucosal MPO activity (by 16.4%-56.6%) and increased the total antioxidant capacity of the gastric tissue (by 0.5, 1.47 and 1.83 folds, respectively) in a dose-dependent manner. At a high concentration (above 1 mg/ml), WCE also exhibited a stronger DPPH radical scavenging activity than butylated hydroxytoluene (BHT).</p><p><b>CONCLUSION</b>The ethanol extract of wasp honeycombs can suppress the formation of acidified ethanol-induced gastric lesions by reducing free radical oxidation and neutrophils infiltration in the gastric tissue in rats.</p>
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Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Farmacología
/
Úlcera Gástrica
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Avispas
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Materia Medica
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Química
/
Ratas Wistar
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Peroxidasa
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Estrés Oxidativo
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Infiltración Neutrófila
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Usos Terapéuticos
Límite:
Animales
Idioma:
Inglés
Revista:
Journal of Southern Medical University
Año:
2011
Tipo del documento:
Artículo
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