Potential of ethanol extract of mahkota dewa leaves (phaleria macrocarpa (Schecff.) Boerl.) to inhibit inflammation in mouse distal colon induced by dextran sodium sulfate (DSS) and azoxymethane (AOM)

Objective: To demonstrates the ability of P. macrocarpa leaf extract to reduce inflammation of the distal colon in DSS/AOM-induced mice. Methods: In vivo experimental research using Balb/c mice induced by 0.2 ml azoxymethane (AOM) 0.1% once and 1% dextran sodium sulphate (DSS) for one week; additionally, ethanol extract of P. macrocarpa leaves, 25 mg and 50 mg, and 0.84 mg acetosal were given orally. The mice were sacrificed after 20 w. Histopathological examination (hematoxylin-eosin staining) was conducted by counting the average number of goblet cells per crypt, inflammatory focus and angiogenesis. Results: Ethanol extract of P. macrocarpa leaves was able to prevent the decrease in the number of goblet cells (p<0.05). However, the administration of ethanol P. macrocarpa leaf extract could not reduce focal inflammation and angiogenesis in inflammation of the distal colon. Conclusion: Ethanol extract of the Mahkota Dewa leaves is able to prevent inflammation of the distal colon by preventing the decrease in the number of goblet cells.