BioScience Trends. 2008;2(5):296-304. (DOI: )

Regulation of the nitric oxide synthesis pathway and cytokine balance contributes to the healing action of Myristica malabarica against indomethacin-induced gastric ulceration in mice.

Maity B, Banerjee D, Bandyopadhyay SK, Chattopadhyay S


SUMMARY

The role of the ariginine-metabolism in the healing action of the methanol extract of Myristica malabarica (rampatri) (RM) and omeprazole (Omez) against indomethacin-induced stomach ulceration in mouse was investigated. Indomethacin (18 mg/kg) was found to induce maximum stomach ulceration in Swiss albino mice on the 3rd day of its administration, which was associated with reduced arginase activity (38.5%, p < 0.05), eNOS expression, along with increased iNOS expression, total NOS activity (5.37 fold, p < 0.001), NO generation (55.1%, p < 0.01), and ratio of pro-/anti-inflammatory cytokines. Besides providing comparable healing as Omez (3 mg/kg


KEYWORDS: Arginase, Cytokine balance, Gastric ulcer healing, Indomethacin, NOS

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