Abstract
One of the Brazilians medicinal plants most cited in ethnopharmacological surveys for the treatment of ulcers and gastric diseases was evaluated for its efficacy and toxicity. Maytenus ilicifolia leaf extract (MIE) was acutely and chronically (180days) administered to rats, mice, and dogs. Acute tests were antiulcer effect and toxicological trials (observational pharmacological screening, LD50, motor coordination, sleeping time and motor activity). Chronic tests were the following: weight gain/loss and behavioral parameters in rats and mice; estrus cycle, effects on fertility, and teratogenic studies in rats and mutagenic features in mice, in addition to the Ames and micronucleus test. The following parameters were assessed in dogs: weight gain/loss, general physical conditions, water/food consumption, and anatomopathological examination of the organs subsequent to the 180-day treatment. The results showed a clear antiulcer activity for MIE from 70mg/kg and an absence of toxicological effects in the three animal species, even if given in high doses or over a long period. The present results confirm the antiulcer property and absence of toxicological effects in three animal species of MIE, which is in line with its current popular medicinal use. Copyright © 2017 John Wiley & Sons, Ltd.
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