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Assessment of acute, 14-day, and 13-week repeated oral dose toxicity of Tiglium seed extract in rats.


ABSTRACT:

Background

Seed of mature Croton tiglium Linne, also known as Tiglium seed (TS), has been widely used as a natural product due to its several health beneficial properties including anti-tumor and antifungal activities. Despite its ethnomedicinal beneficial properties, toxicological information regarding TS extract, especially its long-term toxicity, is currently limited. Therefore, the objective of the present study was to evaluate acute and subchronic toxicity of TS extract in rats after oral administration following test guidelines of the Organization for Economic Cooperation and Development (OECD).

Methods

Toxicological properties of TS extract were evaluated by toxicity assays to determine its single-dose acute toxicity (125, 250, 500, 1000, or 2000 mg/kg), 14-day repeated-dose toxicity (125, 250, 500, 1000, or 2000 mg/kg) and 13-week repeated-dose toxicity (31.25, 62.5, 125, 250, and 500 mg/kg) in Sprague-Dawley rats and F344 rats. Hematological, serum biochemical, and histopathological parameters were analyzed to determine its median lethal dose (LD50) and no-observed-adverse-effect-level (NOAEL).

Results

Oral single dose up to 2000 mg/kg of TS extract resulted in no mortalities or abnormal clinical signs. In 13-week toxicity study, TS extract exhibited no dose-related changes (mortality, body weight, food/water consumption, hematology, clinical biochemistry, organ weight, or histopathology) at dose up to 500 mg/kg, the highest dosage level suggested based on 14-day repeat-dose oral toxicity study.

Conclusion

Acute oral LD50 of TS extract in rats was estimated to be greater than 2000 mg/kg. NOAEL of TS extract administered orally was determined to be 500 mg/kg/day in both male and female rats. Results from these acute and subchronic toxicity assessments of TS extract under Good Laboratory Practice regulations indicate that TS extract appears to be safe for human consumption.

SUBMITTER: Yun JW 

PROVIDER: S-EPMC6134578 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Assessment of acute, 14-day, and 13-week repeated oral dose toxicity of Tiglium seed extract in rats.

Yun Jun-Won JW   Kwon Euna E   Kim Yun-Soon YS   Kim Seung-Hyun SH   You Ji-Ran JR   Kim Hyoung-Chin HC   Park Jin-Sung JS   Che Jeong-Hwan JH   Lee Sang-Koo SK   Jang Ja-June JJ   Kim Hyeon Hoe HH   Kang Byeong-Cheol BC  

BMC complementary and alternative medicine 20180912 1


<h4>Background</h4>Seed of mature Croton tiglium Linne, also known as Tiglium seed (TS), has been widely used as a natural product due to its several health beneficial properties including anti-tumor and antifungal activities. Despite its ethnomedicinal beneficial properties, toxicological information regarding TS extract, especially its long-term toxicity, is currently limited. Therefore, the objective of the present study was to evaluate acute and subchronic toxicity of TS extract in rats afte  ...[more]

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