Chronic Toxicity of Agarwood Extracts Produced by Agar-Wit on SD Rats / 中国药学杂志

ABSTRACT

OBJECTIVE: To assess the chronic toxicity of agarwood extracts produced by agar-wit. METHODS: Agarwood usage in Chinese Pharmacopoeia was referred. SD rats were used as the experimental animal and fed with agarwood extracts at pharmaceutical dosages (1 262.4, 631.2 and 157.8 mg•kg-1) and functional food dosages (150, 105 and 45 mg•kg-1) for 90 d. The weight and food utilization were recorded. The rats were killed on the 90th day, blood and urine were collected for routine blood, serum biochemical indicators and urine index tests, and the bodies were dissected for histological examination. RESULTS: The two groups of rats showed same results. The body weight, food utilization, routine blood, serum biochemical indicators and urine index were not significantly changed compared with the control group (P>0.05). Histological examination showed that the male and female rats both had some lesions, but the group of high dose extracts had no significant difference compared with the control group, also indicating that the lesions had no relationship with agarwood extracts. CONCLUSION: The agarwood extracts produced by agar-wit have no chronic toxicity for mammal in regards of body weight, biochemical indicators and pathology at both pharmaceutical dosages and functional food dosages.