ArticleJournal of cancer research and clinical oncology2019
Chemopreventive effect of Callistemon citrinus (Curtis) Skeels against colon cancer induced by 1,2-dimethylhydrazine in rats.
Article in Journal of cancer research and clinical oncology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 21 citations in OpenAlex.
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Authors and funding
6 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
purposeCallistemon citrinus (Curtis) Skeels is a shrub native of Australia. In spite of containing an important number of bioactive compounds (1,8-cineole, limonene and α-terpineol) recognized as a potential chemotherapeutic agents, it is only used as an ornamental plant in Mexico. This study investigated the chemopreventive effect of C. citrinus leaves extract on 1,2-dimethylhydrazine (DMH)-induced colon carcinogenesis in rats.
methodsTwenty-four rats were divided into 3 groups of eight rats. Group 1 served as negative control, groups 2 and 3 were given subcutaneous injections of DMH (65 mg/kg b.w.) twice a week the first 2 weeks, and then one the third week. In addition, group 3 was administrated with leaves extracts (250 mg/kg b.w., orally daily) during the 22 weeks of the experiment. Animals were killed and the presence of colon tumors and aberrant crypt foci (ACF) were scored for number and distribution pattern along the colon. The activity of two-phase II enzymes quinone reductase (QR) and glutathione S-transferase (GST) was determined in the liver and three segments of the colon: proximal, middle and distal.
resultsThe results show that rats feed with C. citrinus leaves extract significantly reduced the size of tumors, the number of ACF and the crypt multiplicity. Additionally, C. citrinus leaves extract increased or maintained the activity of QR and GST in the different tissues as compared with DHM-treated group (p > 0.05).
conclusionThis study demonstrates that Callistemon citrinus extract could have a chemopreventive effect against colon carcinogenesis.
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