Abstract
The stomach mechanoreceptors can be stimulated by gastric distension (GD) and through afferent vagal nerve, increased activity of the renal sympathetic pathways. Because renal sympathectomy can abolish the protective effect of ischemic preconditioning, it seems that GD preconditioning can be effective in renal ischemia/reperfusion (I/R) injury. Gastric inflate (8 ml of 37°C water for 20 min) by a latex balloon inserted into the stomach through the fundus; I/R group was subjected to 45 min of bilateral ischemia and 24 h of reperfusion. GD preconditioning decreases blood urea nitrogen, creatinine, kidney damage score, and alkaline phosphatase levels compared to the sham GD group (P < 0.05). GD preconditioning may protect renal I/R injury through anti-inflammatory activity, but this efficacy requires extensive studies on the methods and mechanisms.
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