Abstract
Yangambin, a lignan isolated from the leaves of Ocotea duckei Vattimo-Gil, has several pharmacological activities described in literature. However, few information about its toxicity has been reported. Red cells represent about 90% of blood cells and have interesting structural and molecular characteristics as experimental models in toxicological studies. Thus, the aim of this study was to evaluate the hemolytic action of yangambin in sheep blood. The hemolysis assay was performed at concentrations of 50, 25 and 12.5 µg/mL of yangambin in triplicate and hemolysis percentage was defined through the absorbance resulting from the test concentrations compared to the positive control. The results showed that yangambin did not cause hemolysis at the concentrations tested, therefore it did not cause damage to the plasma membrane of sheep erythrocytes.
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