e aril (mace) of Myristica fragrans, known as Dok-Chan, is a spice that has long been used for treating stomach discomfort, peptic ulcer, and nausea. It is an ingredient in many remedies in ai traditional medicine, e.g., Ya-Hom-ep-Bha-Jit, Ya-Hom-Nao-Wa-Kot, and Ya-at-Bun-Job, which are used to treat dyspepsia and other gastrointestinal tract symptoms. e aqueous and ethanolic extracts of mace were used for all tests. Anti-H. pylori activities were determined by the disc diffusion method and agar dilution. Anti-inflammatory activity was determined by the LPS-induced nitric oxide (NO) inhibition in a RAW264.7 cell line, and cytotoxicity was determined against gastric cancer cell lines (Kato III) using the sulphorhodamine B (SRB) assay. e DPPH radical scavenging and ABTS radical cation decolorization assays were used to determine the antioxidant activities. e result found that the ethanolic extract of mace exhibited antimicrobial activity against H. pylori ATCC 43504 and six clinical strains with MIC values of 125-250 μg/ml. e aqueous extract MICs against H. pylori ATCC reference strain and six clinical strains were 500 μg/ml compared with 0.5 μg/ml for the positive control, clarithromycin. e inhibitory effect of LPS-induced NO release and cytotoxic activity of the ethanolic extract had IC 50 values of 82.19 μg/ml and 26.06 μg/ml, respectively, and the EC 50 values for the DPPH and ABTS antioxidant assays were 13.41 μg/ml and 12.44 μg/ml, respectively. e mace extract also had anticancer properties. In conclusion, the ethanolic mace extract had anti-H. pylori, anti-inflammatory, antioxidant, and anticancer activities. ese data support further preclinical and clinical investigation to see if the mace extract could have a role in treating patients with dyspepsia, peptic ulcers, and possibly gastric cancer.
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