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진주연(Ju Youn Jin),양희경(Hee Kyoung Yang),김지민(Ji Min Kim),고문수(Mun Su Ko),홍현주(Hyun Ju Hong),진영건(Young Gun Jin),김동건(Dong Gun Kim),김상철(Sang Chul Kim),이일(Il Lee),현민경(Min Kyong Hyon),강상철(Sang Chul Kang),김재훈(Ja 한국독성학회 2006 Toxicological Research Vol.22 No.4
Aralia elata, a common medicinal and culinary herb, has been consumed for centuries without any reported adverse effects. However, due to its limited safety information, we decided to investigate the repeated-dose toxicity of ethanolic extract of Aralia elata. The test was administered once daily by the gavage to male and female rats at doses of 0, 250, 500 and 1,000 ㎎/㎏/day for four weeks. Throughout the study, no treatment-related deaths or clinical signs were observed. Also, no apparent changes were detected in ophthalmoscopy, urinalysis, serum biochemistry, hematology and gross necropsy. The test result showed a significant decrease in body and heart weight of males treated with 250 ㎎/㎏ of extract of Aralia elata compared to normal control, a significant increase in relative brain weight and adrenal weight in females treated with 250 ㎎/㎏ of extract compared to normal control. However, all these changes were not considered toxicologically important due to irrelevant dose-response relationship to gross and microscopic findings. Histopathologically, abnormal changes were not observed in any target organs. On the basis of these results, the NOAEL of extract of Aralia elata was estimated to be more than 1,000 ㎎/㎏/day under the tested conditions.