Resumo

CARBAJAL QUINTANA, Daisy et al. Effects of policosanol on gastroprotective action of D-002. Rev Cubana Farm [online]. 2014, vol.48, n.3, pp. 486-494. ISSN 1561-2988.

Introduction: policosanol, a mixture of higher aliphatic alcohols purified from sugar cane wax, is used to treat hypercholesterolemia. D-002 (Abexol), a mixture of higher aliphatic alcohols from beeswax, is an antioxidant supplement with gastroprotective effects. Then, concomitant intake of D-002 and policosanol may occur in routine practice, so potential pharmacological interactions between them should be researched on. Objective: to find out the influence of policosanol on the gastroprotective effect of D-002 on the ethanol-induced gastric ulcer model. Methods: rats were randomized into eight groups: one treated with the vehicle (control), two with D-002 (25 and 200 mg/kg), two with policosanol (25 and 200 mg/kg), two with the same doses of D-002 + policosanol and other with sucralfate (100 mg/kg). Treatments were given as single oral doses. One hour after treatment, rats received 60% ethanol orally and one hour later they were killed and their stomachs exposed. Effects on ulcer indexes (UI) were assessed. Results: acute oral administration of D-002 (25 and 200 mg/kg) significantly reduced the ulcer indexes by 40 % and 68 %, respectively, as compared to the control group, and policosanol by 26 % and 47 %, respectively. The concomitant administration of the same doses of D-002 and policosanol significantly decreased ulcer indexes by 64 % (both given at 25 mg/kg) and by 92 % (both given at 200 mg/kg) as compared to the respective monotherapies. Sucralfate (100 mg/kg) significantly reduced (@ 99 %) ulcer indexes compared to the control group. Conclusions: the concomitant oral administration of policosanol with D-00 2 gives greater gastroprotection than D-002 monotherapy, so both products can be taken together.

Palavras-chave : policosanol; bees wax alcohols; combined therapy; gastric ulcers; ethanol-induced ulcers.

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