Acute and 13 weeks subchronic toxicological evaluation of naringin in Sprague-Dawley rats.

Abstract

Naringin is widely distributed in plant foods and has not previously been evaluated for safety through standard in vivo toxicological studies. In the present study, acute and subchronic oral toxicity studies of naringin were designed and conducted in Sprague-Dawley (SD) rats. Acute oral administration of naringin was done as a single bolus dose up to 16 g/kg and subchronic toxicity study for 13 weeks was done by oral administration at doses of 0 (control), 50, 250 and 1250 mg/kg in SD rats. There were no mortality, adverse clinical signs, abnormal changes in body weights or food consumption, toxicologically relevant changes in hematology, clinical biochemistry and macroscopic findings during 14 days of the acute toxicity study. During the subchronic oral toxicity study, no mortality and toxicologically significant changes in clinical signs, food consumption, opthalmoscopic examination, hematology, clinical biochemistry, serum sex hormone, macroscopic findings, organ weights and histopathological examination except for slight body weight decrease were noted and attributed to naringin administration. These observations suggest that naringin is practically non-toxic for SD rats in oral acute toxicity study and the no-observed-adverse-effect-level (NOAEL) of naringin in rats is greater than 1250 mg/kg/day when administered orally for 13 consecutive weeks.

• Authors: Peibo Li, Sheng Wang, Xiaolin Guan, Bin Liu, Yonggang Wang, Ke Xu, Wei Peng, Weiwei Su, Kejian Zhang
• Journal: Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association (Food Chem Toxicol) Vol. 60 Pg. 1-9 (Oct 2013) ISSN: 1873-6351 [Electronic] England
• PMID: 23871784 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2013 Elsevier Ltd. All rights reserved.

Chemical References

• Flavanones
• Hormones
• naringin

Topics

• Administration, Oral
• Animals
• Body Weight
• Dose-Response Relationship, Drug
• Female
• Flavanones (toxicity)
• Hormones (blood)
• Lethal Dose 50
• Male
• No-Observed-Adverse-Effect Level
• Organ Size
• Rats
• Rats, Sprague-Dawley
• Toxicity Tests, Acute (methods)
• Toxicity Tests, Subchronic (methods)