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  • Title: 6- shogaol suppresses AOM/DSS-mediated colorectal adenoma through its antioxidant and anti-inflammatory effects in mice.
    Author: Ajeigbe OF, Maruf OR, Anyebe DA, Opafunso IT, Ajayi BO, Farombi EO.
    Journal: J Food Biochem; 2022 Dec; 46(12):e14422. PubMed ID: 36125935.
    Abstract:
    Colorectal adenoma appears as benign lesions and is a precursor of colorectal adenocarcinoma. The effect of 6-Shogaol (6-[S]), a bioactive agent from ginger, in early colonic adenoma growth is unknown. As a result, this study examines the effect of 6-[S] in a mouse colorectal adenoma model induced by Azoxymethane (AOM) and dextran sulfate sodium (DSS). Adult male mice served as control in Group 1. Group 2 was treated orally with 6-[S] extract (20 mg/kg BW). Group 3 was exposed to AOM (25 mg/kg BW, ip) and one cycle of DSS (2.5%) in drinking water alone while Group 4 was co-treated with 6-[S] for twenty-one (21) days. The body weight gain, organ weight and length, oxidative stress indices, inflammatory markers and histological examination were estimated. Our findings show that 6-[S] co-treatment reversed AOM/DSS-induced elevation in colon weight, colon length, nitric oxide (NO), myeloperoxidase (MPO), hydrogen peroxidase (H2 O2 ), and tumor necrosis factor-alpha (TNF-α). However, the antioxidant enzyme activities measured namely catalase (CAT), superoxide dismutase (SOD), reduced glutathione (GSH), and glutathione-S-transferase were significantly increased in 6-[S] treated mice. Taken together, the protective effect of 6-[S] on oxidative burden, inflammation, and histological aberration observed in the colon of the AOM/DSS model of adenoma growth in mice is mediated primarily owing to its anti-inflammatory and anti-oxidative properties. Thus, this study reveals 6-[S] as a useful agent in the possible clinical intervention of colorectal adenoma. PRACTICAL APPLICATIONS: Certain spices have been reported to have numerous phytochemicals with numerous medicinal purposes. However, no studies have been conducted to investigate the role of 6-[S], a phytochemical found in ginger, in the treatment of colorectal adenoma. The study's findings show that 6-[S] is protective in early colonic cancer development, as it manages colorectal adenoma cancer models of AOM/DSS. As a result, 6-[S]'s ability to reduce oxidative stress and inflammation in the colon may be a potential nutritional therapeutic adjuvant for colorectal adenoma.
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