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Abstract Title:

Chemopreventive effects of curcumin on glandular stomach carcinogenesis induced by N-methyl-N'-nitro-N-nitrosoguanidine and sodium chloride in rats.

Abstract Source:

Anticancer Res. 2001 Sep-Oct;21(5):3407-11. PMID: 11848501

Abstract Author(s):

S Ikezaki, A Nishikawa, F Furukawa, K Kudo, H Nakamura, K Tamura, H Mori

Article Affiliation:

Department of Pathology, Gifu University School of Medicine, Japan.

Abstract:

The modifying effects of pure curcumin on glandular stomach carcinogenesis were investigated during the post-initiation phase in male Wistar rats treated with N-methyl-N'-nitro-N-nitrosoguanisine (MNNG) and sodium chloride. A total of 110 male 6-week-old rats were divided into four groups. Groups 1-3 (consisting of 30 rats/group) were given MNNG in their drinking water at a concentration of 100 ppm and simultaneously fed a diet supplemented with 5% NaCl for 8 weeks. They were then fed a diet containing either 0.2% (group 1) or 0.05% (group 2) pure curcumin or kept on a basal diet alone (group 3) for 55 weeks. The rats of the curcumin-treated groups (groups 1 and 2) were then switched to the basal diet for the following 4 weeks before sacrifice. Group 4 (20 rats) served as a non-treatment control. The total incidence of combined atypical hyperplasias and adenocarcinomas in the glandular stomachs was rather lower in groups 1 (93%) and 2 (90%) than in group 3 (100%), albeit without statistical significance. However, the mean number of atypical hyperplasias or adenocarcinomas of the glandular stomachs in group 1 (4.70) was significantly less than the value of group 3 (7.17) (p<0.05). Thus, the development of cancerous and precancerous lesions in the glandular stomach was decreased by exposure to pure curcumin. The present results indicate that the compound exerts chemopreventive effects, when given during the post-initiation phase of glandular stomach carcinogenesis in rats.

Study Type : Animal Study

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