Volume 7, Number 2, June 2017
|Number of page(s)||8|
|Published online||14 June 2017|
Alleviative effects from boswellic acid on acetaminophen-induced hepatic injury
Corrected and republished from: Biomedicine (Taipei). 2016 Jun; 6 (2): 9. doi: 10.7603/s40681-016-0009-1
Department of Otolaryngology, Taipei Medical University Hospital, Taipei
2 Shanghai Research Center for the Modernization of Traditional Chinese Medicine, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
3 Department of Nutrition, China Medical University, Taichung 404, Taiwan
* Corresponding author. Department of Nutrition, China Medical University, No. 91, Hsueh-shih Rd., Taichung 404, Taiwan. E-mail addresses: email@example.com (M.-C. Yin).
Accepted: 11 April 2016
Protective effects of boswellic acid (BA) against acetaminophen (APAP)-induced hepatotoxicity in Balb/ cA mice were examined. BA, at 0.05 or 0.1%, was supplied for 4 weeks. Acute liver injury was induced by APAP treatment. Results showed that BA intake increased hepatic BA bioavailability. APAP treatment decreased glutathione (GSH) level, increased reactive oxygen species (ROS) and oxidized glutathione (GSSG) production; and lowered activity and protein expression of glutathione reductase (GR) and heme oxygenase (HO)-1 in liver. BA intake at both doses alleviated subsequent APAP-induced oxidative stress by retaining GSH content, decreasing ROS and GSSG formations, reserving activity and expression of GR and HO-1 in liver, and lowering hepatic cytochrome P450 2E1 activity and expression. APAP treatment enhanced hepatic levels of interleukin-6, tumor necrosis factor-alpha and monocyte chemoattractant protein-1. BA pre-intake diminished APAP-induced release of those inflammatory cytokines and chemokines. APAP up-regulated hepatic protein expression of toll-like receptor (TLR)-3, TLR-4, MyD88, nuclear factor kappa B (NF-κB) p50, NF-κB p65 and JNK. BA pre-intake at both doses suppressed the expression of NF-κB p65 and p-JNK, and only at 0.1% down-regulated hepatic TLR-3, TLR-4 and MyD88 expression. APAP led to obvious foci of inflammatory cell infiltration in liver, determined by H&E stain. BA intake at both doses attenuated hepatic inflammatory infiltration. These findings support that boswellic acid is a potent hepato-protective agent.
Key words: Acetaminophen / Boswellic acid / CYP2E1 / JNK / TLRs / NF-κB
© Author(s) 2017. This article is published with open access by China Medical University
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