부산대학교 도서관

Herniarin is a member of simple coumarins, which are a group of common secondary metabolites in plants. The aim of the present study was to investigate the effects of herniarin on genotoxicity and apoptosis induced by cisplatin in rat bone marrow cells. The experimental rats were treated with four different doses of herniarin (50, 100, 200, and 400 mg/kg.) for seven consecutive days. The cisplatin (5 mg/kg, i.p.) was injected into mice 1 h after the last oral herniarin administration on the seventh day. The protective effects of herniarin were investigated by hematological test, flow cytometry, micronucleus assay, and reactive oxygen species (ROS) level analysis. Herniarin caused a marked reduction in the frequencies of micronucleated polychromatic erythrocytes (MnPCEs) and micronucleated normochromatic erythrocytes (MnNCEs) 24 h after exposure to cisplatin at doses of 200 and 400 mg/kg. Furthermore, herniarin significantly increased the levels of both red and white blood cells in peripheral blood. Treatment of rats with herniarin before cisplatin, significantly decreased the percentage of apoptotic and necrotic cells and the ROS level in bone marrow cells. This study indicated that herniarin can be introduced as a new chemoprotective agent against cisplatin-induced genotoxicity in the future. [ABSTRACT FROM AUTHOR]