The Effect of Glehnia Littoralis on Alpha-amanitin Induced Hepatotoxicity in a Murine Model

Ryu, Chang Yeon; Sun, Kyung Hoon; Hong, Ran; Park, Yongjin

Abstract

PURPOSE
Glehnia littoralis has been reported to have several pharmacological properties but no in vivo reports describing the protective effects of this plant on Î±-amanitin-induced hepatotoxicity have been published. Î±-Amanitin is a peptide found in several mushroom species that accounts for the majority of severe mushroom poisonings leading to severe hepatonecrosis. In our previous in vitro study, we found that Î±-amanitin induced oxidative stress, which may contribute to its severe hepatotoxicity. The aim of this study was to investigate whether Glehnia littoralis acetate extract (GLEA) has protective antioxidant effects on Î±-amanitin-induced hepatotoxicity in a murine model.
METHODS
Swiss mice (n=40 in all groups) were divided into four groups (n=10/group). Three hours after giving Î±-amanitin (0.6 mg/kg, i.p.) to the mice, they were administered silibinin (50 mg/kg/d, i.p.) or Glehnia littoralis ethyl acetate extract (100 mg/kg/d, oral) therapies once a day for 3 days. After 72 hours of treatment, each subject was killed, cardiac blood was aspirated for hepatic aminotransferase measurement, and liver specimens were harvested to evaluate the extent of hepatonecrosis. The degree of hepatonecrosis was assessed by a pathologist blinded to the treatment group and divided into 4 categories according to the grade of hepatonecrosis.
RESULTS
GLEA significantly improved the beneficial functional parameters in Î±-amanitin-induced hepatotoxicity. In the histopathological evaluation, the toxicity that was generated with Î±-amanitin was significantly reduced by GLEA, showing a possible hepatoprotective effect.
CONCLUSION
In this murine model, Glehnia littoralis was effective in limiting hepatic injury after Î±-amanitin poisoning. Increases of aminotransferases and degrees of hepatonecrosis were attenuated by this antidotal therapy.