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Κυριακή 24 Ιουλίου 2022

Protective Effects of Cannabis sativa on chemotherapy‐induced nausea

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Abstract

Cyclophosphamide is an anticancer and immunosuppressive agent used in the treatment of various malignancies but causing gastrointestinal distress. Cannabis sativa (C. sativa) and its derivatives have been used for the treatment of human gastrointestinal disorders. A purpose of this study was to investigate the effect of C. sativa on nausea induced by cyclophosphamide in rats. The rats were divided into four groups (8 animals per group): Group 1: Normal control (saline i.p). Group 2: rats received cyclophosphamide (200 mg/kg i.p) 3 consecutive days. Group 3 and 4: Rats received cyclophosphamide (200 mg/kg ip) across days 1 – 7 and C. sativa (20 and 40 mg/kg sc) was administered on cyclophosphamide days 4 – 7. We examined intake of kaolin, normal food and changes in body weight, as an indicator of the emetic stimulus. Oxidative stress markers, antioxidant enzymes status, serotonin (5HT), dopamine, noradrenaline and CB1R levels were evaluated in the intestina l homogenate. Moreover, histopathological study was performed. Results showed that C. sativa ameliorates cyclophosphamide-induced emesis by increasing in body weight and normal diet intake with a decrease in kaolin diet intake after 7 days. Moreover, C. sativa significantly decreases (serotonin) 5HT, dopamine and noradrenaline, as well as, decreasing oxidative stress and inflammation. Administration of C. sativa significantly increased the expression of CB1R in intestinal homogenate. Treatment with C. sativa, also, improved the histological feature of an intestinal tissue. These results suggested that C. sativa possess antiemetic, antioxidant and anti-inflammatory effects in chemotherapy-induced nausea in rats by activating CB1R.

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