This study was designed to determine the effect of D-002, a natural product
isolated and purified from beeswax (Apis mellifera), on gastric mucus comp
osition on ethanol-induced ulcer in rats. The morphology of the lesions was
analysed histologically, and morphometric analysis of gastric-gland conten
t in total glycoprotein and sulphated macromolecules were done. Oral pretre
atment with D-002 at 5 and 25 mg kg(-1) 1 before oral administration of eth
anol at 60%, produced a significant increase in the amount of gastric mucus
and total protein. The histomorphometric evaluation of the gastric damage
at the same doses showed a significant increase in neutral glycoproteins an
d sulfated macromolecules. It is concluded that enhancement of the quantity
and quality of the mucus could partly explain the gastroprotective effect
of D-002. (C) 2000 Academic Press.