Safety evaluation of auraptene in rats in acute and subacute toxicity studies

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Auraptene (AUR) is a natural, bioactive, monoterpene coumarin ether. It has anti-inflammatory, anti-carcinogenic, anti-bacterial, neuroprotective, and hepatoprotective properties. The aim of the present study was to assess the acute and subacute toxicity of oral administration of AUR in rats by evaluating clinical signs, haematology, biochemical factors, pathological changes and immune-toxicity. Acute administration of AUR in doses of 125, 250, 500, 1000 and 2000 mg/kg body weight had no mortality or clinical signs in a period of two days. To evaluate subacute toxicity, AUR was administrated for 28 days by oral gavage in doses of 125 and 250 mg/kg. There were significant differences in the haematological and biochemical data of the treated and untreated groups. However, almost all haematological differences were within normal reference ranges. Subacute administration of AUR showed no toxic histopathological effects on organ tissue. Evaluation of immune-toxicity also revealed no significant differences between treatment and untreated groups.

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