Abstract
Gastric ulcer is a clinical condition characterized by ulceration of the surface of the gastric mucosa. Alcohol consumption has been identified as a major cause of gastric ulceration. The silkworm, Bombyx mori, produces diverse functional materials including silk proteins. Here, we evaluated whether Steamed and freeze-dried Mature Silkworm larval Powder (SMSP) can prevent ethanol-induced gastric injury in rats. Sprague-Dawley rats pretreated with SMSP (0.1 or 1 g/kg body weight) or normal diet (AIN-76A) were subjected to intragastric administration of absolute ethanol (3 g/kg body weight, 3 h). Pretreatment with SMSP significantly prevented ethanol-induced gastric mucosal ulceration and hemorrhagic injury, by which improved the total antioxidant capacity and mucus secretion and suppressed the pro-inflammatory responses through inhibiting the recruitment of immune cells. SMSP exerted protective effects in ethanol-induced gastritis via the regulation of anti-oxidative and pro-inflammatory signaling pathway, suggesting SMSP could be anticipating remedy for the treatment of ethanol-induced gastric injury.
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