JOURNAL ARTICLE

Turmeric (Curcuma longa) and curcumin inhibit the growth of Helicobacter pylori, a group 1 carcinogen

G B Mahady, S L Pendland, G Yun, Z Z Lu
Anticancer Research 2002, 22 (6C): 4179-81
12553052

BACKGROUND: Curcumin, a polyphenolic chemical constituent derived from turmeric (Curcuma longa), has been shown to prevent gastric and colon cancers in rodents. Many mechanisms have been proposed for the chemopreventative effects, although the effect of curcumin on the growth of Helicobacter pylori has not been reported. H. pylori is a Group 1 carcinogen and is associated with the development of gastric and colon cancer.

MATERIALS AND METHODS: A methanol extract of the dried powdered turmeric rhizome and curcumin were tested against 19 strains of H. pylori, including 5 cagA+ strains.

RESULTS: Both the methanol extract and curcumin inhibited the growth of all strains of H. pylori in vitro with a minimum inhibitory concentration range of 6.25-50 micrograms/ml.

CONCLUSION: These data demonstrate that curcumin inhibits the growth of H. pylori cagA+ strains in vitro, and this may be one of the mechanisms by which curcumin exerts its chemopreventative effects.

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