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- Title
Is Olive Oil Consumption Suitable for Colorectal Cancer? In Vivo Preliminary Studies on Azoxymethane-Induced Colon Cancer in Rats.
- Authors
David, Sheba R.; Taufik, Aida Batrisyia Mohd; Lim Ya Chee; Balaraman, Ashok Kumar; Rajabalaya, Rajan
- Abstract
The incorporation of olive oil in the diet may have promoting or inhibitory effects on colorectal cancer (CRC). Objective: In this study, azoxymethane (AOM) was used to mimic CRC in rats and the effect of olive oil was correlated with the cancer progression in the colon of the rats. Design: Six weeks old Sprague-dawley male rats were randomized into 4 groups namely, naïve, indomethacin, saline and olive oil. Main outcome measures: This study was to investigate the effect of olive oil on preneoplastic cancer properties on the colonic mucosal surface for any tumors and the aberrant crypt foci (ACF). The induction AOM for the CRC by subcutaneous injection of 20 mg/kg. Rats were given 10 mg/kg b.w. of indomethacin dissolved in 0.9% saline by oral gavage for 4 weeks (28 days) as a positive control group. The negative control group was given 0.9% sodium chloride solution. Results: The experimental treatment compound, olive oil, was administered orally with a dosage of 7% daily food intake for 4 weeks (28 days). At week 6 (day 42), all animals were sacrificed by cervical dislocation and the colorectum was excised for histological examination. Histological sections were achieved using a microtome and histological sections were observed using a microscope. The mean body weights of the rats at 42 days are naïve - 238.5 ± 33.2, positive control - 251.5 ± 31.8, negative control - 231 ± 2.8 and treated group 262 ± 28.3. A total 3 ACF were found in the negative group compared to other groups. The crypts appeared regular with circular luminal openings and were arranged closely packed together in the naïve group. Crypts in the positive and treated group also had a similar appearance like naïve group. Conclusions: Olive oil inhibits the preneoplastic cancer properties ACF and maybe an incorporate into diet during CRC treatment or management.
- Subjects
OLIVE oil; COLON cancer; COLORECTAL cancer; RATS; SUBCUTANEOUS injections; SPRAGUE Dawley rats
- Publication
Current Trends in Biotechnology & Pharmacy, 2022, Vol 16, Issue 4, p500
- ISSN
0973-8916
- Publication type
Article
- DOI
10.5530/ctbp.2022.4.83