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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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The aim of the present study was to determine the antibacterial properties against Helicobacter pylori and the anti-inflammatory and antioxidant activities of crude A. krervanh extracts. The minimum inhibitory concentrations (MICs) of ethanolic and aqueous extracts were measured against standard strain H. pylori standard (ATCC 43504) and six clinical isolates by disc diffusion and agar dilution. Anti-inflammatory activities were evaluated by measuring the inhibition of nitric oxide (NO) production in LPS-activated RAW 264.7 macrophages using the Griess assay and the ELISA measurement of proinflammatory cytokines, tumour necrosis factor α (TNF-α), and interleukin 6 (IL-6). Their cytotoxic activities against macrophages were determined by the MTT assay. ABTS and DPPH scavenging assays measured the antioxidant activities. Only the ethanolic extract showed antibacterial activity with mean inhibition zones of 9.0-19.3 mm for a corresponding MIC of 250 µg/ml; the clarithromycin MICs ranged from 0.5-1 µg/ml. This extract also inhibited production of NO (mean IC 50 98.99 ± 0.39 µg/ml) and IL-6 (mean IC 50 18.68 ± 2.16 µg/ml) and exhibited moderate antioxidant activity using DPPH and ABTS scavenging assays: mean IC 50 s 95.92 ± 1.26 and 90.35 ± 2.25 µg/ml, respectively. Thus ethanolic extract showed a greater spectrum of activity that could be exploited further as adjunct treatments of H. pylori related gastrointestinal disease.