In vitro and in vivo protective effect of honokiol on rat liver from peroxidative injury

Jen Hwey Chiu*, Chung Teh Ho, Yau Huei Wei, Wing Yiu Lui, Chuang Ye Hong

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

55 Scopus citations

Abstract

Honokiol, a compound extracted from the Chinese medicinal herb Magnolia officinalis, has a strong antioxidant effect on the inhibition of lipid peroxidation in rat heart mitochondria. To investigate the protective effect of honokiol on hepatocytes from peroxidative injury, oxygen consumption and malondialdehyde formation for in vitro iron-induced lipid peroxidation were assayed, and the mitochondrial respiratory function for in vivo ischemia-reperfusion injury were evaluated in rat liver, respectively. The inhibitory effect of honokiol on oxygen consumption and malondialdehyde formation during iron-induced lipid peroxidation in liver mitochondria showed obvious dose-dependent responses with a concentration of 50% inhibition being 2.3x10-7M and 4.96x10-7M, respectively, that is, 550 times and 680 times more potent than α-tocopherol, respectively. When rat livers were introduced with ischemia 60 min followed by reperfusion for 60 min, and then pretreated with honokiol (10 μg/kg BW), the mitochondrial respiratory control ratio (the quotient of the respiration rate of State 3 to that of State 4) and ADP/O ratio from the honokiol-treated livers were significantly higher than those of non-treated livers during reperfusion. The dose-dependent protective effect of honokiol on ischemia-reperfusion injury was l0 μg - 100 μg/Kg body weight. We conclude that honokiol is a strong antioxidant and shed insight into clinical implications for protection of hepatocytes from ischemia-reperfusion injury.

Original languageEnglish
Pages (from-to)1961-1971
Number of pages11
JournalLife Sciences
Volume61
Issue number19
DOIs
StatePublished - 03 10 1997
Externally publishedYes

Keywords

  • Honokiol
  • Lipid peroxidation
  • Reperfusion injury

Fingerprint

Dive into the research topics of 'In vitro and in vivo protective effect of honokiol on rat liver from peroxidative injury'. Together they form a unique fingerprint.

Cite this