Abeliophyllum distichum Nakai is a deciduous shrub of a flowering plant in Oleaceae. It is an important plant resource and consists of only one species in the entire world. A. distichum Nakai is well known an edible, medicinal herb in its habitat districts, but the toxicological evaluation for the safe use of its extract is still insufficient. The study characterized the toxicity of an Abeliophyllum distichum Nakai ethanol extract in Sprague-Dawley (SD) rats and determined the safe dosage levels in a 13 weeks toxicity study. Abeliophyllum distichum Nakai ethanol extract was orally administered once daily for 2 weeks at 0, 500, 1,000 and 2,000 mg/kg/day to male and female SD rats. while recording the clinical signs of toxicity, body weight, food intake/consumption, eye test and urine analysis. Only the total protein frequency in the urine of male SD rats (p<0.05), the right ovary of the 500 mg/kg group (p<0.01) and the right adrenal gland of the 1,000 mg/kg group (p<0.05) in the female rats showed statistically significant changes. But no toxic effects were noted from repeated-dose administration of the Abeliophyllum distichum Nakai ethanol extract in the SD rats during the observation period. The post-mortem examinations showed no test substance-mediated changes. The hematological analysis and clinical blood chemistry data demonstrated no toxic effects from repeated-dose administration of Abeliophyllum distichum Nakai ethanol extract in the SD rats during the observation period. Based on these results, this data suggests that a dose of 1,000 mg/kg/day is a highest treatment to administer when conducting a further 13 weeks toxicity study.

Abstract
I. 서 론
II. 연구 내용 및 방
    1. 실험재료 및 시료의 제조
    2. 실험동물 및 사육환경
    3. 시험군의 구성 및 시험물질의 투여
    4. 일반증상 및 폐사의 관찰
    5. 체중변화, 사료 섭취량 측정
    6. 안검사 및 요검사
    7. 혈액학적 검사
    8. 혈액생화학적 검사
    9. 부검소견 관찰, 장기중량 측정 및 조직병리학적 검사
    10. 통계학적 방법
III. 결과 및 고찰
    1. 임상증상 및 사망률
    2. 체중변화 및 사료섭취량
    3. 안검사 및 요검사
    4. 혈액학적 검사
    5. 혈액생화학적 검사
    6. 장기중량 및 부검소견
IV. 요약 및 결론
References

• 권순복(용인대학교 식품영양학과) | Soon Bok Kwon (Department of Food and Nutrition, Yongin University) Corresponding author