title: Therapeutic effect of D-002 (abexol) on gastric ulcer induced experimentally in rats.
abstract: D-002 is a mixture of higher aliphatic primary alcohols isolated from beeswax, wherein triacontanol is the most abundant alcohol, with antioxidant and anti-ulcer properties. Since compounds with cytoprotective and antioxidant effects can improve healing of gastroduodenal ulcer induced by noxious agents, this work investigated the healing effect of D- 002 on acute and chronic gastric ulcers induced with indomethacin and acetic acid, respectively, in rats. Acute gastric ulcer was induced with single oral doses of indomethacin (20 mg/kg). Treatments with D-002 at 50, 100, and 200 mg/kg or vehicle were administered 3 hours after ulcer induction. Three hours later, rats were sacrificed, and the stomach was removed for quantifying the lesions. Chronic gastric ulcer was induced by 50 microL of 80% acetic acid application on the anterior serosal surface of the glandular stomach during 20 seconds. Twenty-four hours later D-002 at 50, 100, and 200 mg/kg or vehicle was administered for 5 days. At the end of the treatment, animals were fasted for 24 hours and sacrificed, the stomachs were removed, and the lesions were quantified. D-002 orally administered at 100 and 200 mg/kg acutely significantly healed gastric ulcers induced with indomethacin by 39% and 56% compared with positive controls, respectively. Also, D-002 at 200 mg/kg, but not at 50 or 100 mg/kg, administered orally for 5 days after ulcer induction exerted a significant healing effect (65.8% inhibition) in gastric ulcers induced with acetic acid. In conclusion, this work demonstrated that D-002 administered after ulcer induction induced effective healing of acute and chronic gastric ulcers provoked by, respectively, indomethacin and acetic acid.
authors.affiliation: Center of Natural Products, National Center for Scientific Research, Cubanacán, Havana, Cuba.
authors.forename: Vivian
authors.initials: V
authors.lastname: Molina
authors.forename: Daisy
authors.initials: D
authors.lastname: Carbajal
authors.forename: Lourdes
authors.initials: L
authors.lastname: Arruzazabala
authors.forename: Rosa
authors.initials: R
authors.lastname: Más
mesh_terms: D019342:Acetic Acid / Q000009:adverse effects / Q000494:pharmacology; D000208:Acute Disease; D000284:Administration, Oral; D000818:Animals; D000897:Anti-Ulcer Agents / Q000627:therapeutic use*; D000975:Antioxidants / Q000627:therapeutic use*; D002908:Chronic Disease; D004195:Disease Models, Animal; D004305:Dose-Response Relationship, Drug; D005233:Fatty Alcohols / Q000627:therapeutic use*; D005260:Female; D007213:Indomethacin / Q000009:adverse effects / Q000494:pharmacology; D011897:Random Allocation; D051381:Rats; D017207:Rats, Sprague-Dawley; D013276:Stomach Ulcer / Q000139:chemically induced / Q000188:drug therapy* / Q000473:pathology; D016896:Treatment Outcome
chemical_list: D000897:Anti-Ulcer Agents; D000975:Antioxidants; C104511:D 002; D005233:Fatty Alcohols; D019342:Acetic Acid; D007213:Indomethacin