[ Pharmaceutical Sciences Asia - ONLINE ]
Print ISSN 2586-8195 E-ISSN 2586-8470
[ Journal Abbreviation: Pharm.Sci.Asia ]
Mahidol University Journal of Pharmaceutical Sciences
  FORMER NAME   "Mahidol University Journal of Pharmaceutical Sciences" Published Since 1974


DOI: 10.29090/psa.2020.01.019.0004Pharm Sci Asia 2020; 47(1), 74-85

Non-Phenolic Diarylheptanoid from Curcuma comosa Protects Against Thioacetamide-Induced Acute Hepatotoxicity in Mice

Pavadee Chuaicharoen1, Tumnoon Charaslertrangsi2*, Aporn Chuncharunee3, Apichart Suksamrarn4, Pawinee Piyachaturawat5

1 Toxicology Graduate Program, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.
2 Science Division, Mahidol University International College, Salaya Phuttamonthon, Nakhon Pathom 73170, Thailand.
3 Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
4 Department of Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok 10240, Thailand.
5 Department of Physiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.

Curcuma comosa Roxb. (C. comosa, Zingiberaceae) is a medicinal herb containing diarylheptanoids with anti-oxidative and anti-inflammatory activities. The crude extract and its phenolic diarylheptanoid were shown to have hepatoprotection in vitro. The present study investigated the active principles and their underlying mechanisms that provided protection against thioacetamide (TA)-induced hepatotoxicity in vivo. Hepatic injury was induced in adult male mice by a single injection of TA (50 mg/kg BW, i.p.). C. comosa ethanol extract (5-500 mg/kg BW, p.o.), isolated diarylheptanoids: (3R)-1,7-diphenyl-(4E,6E)-4,6-heptadien-3-ol, (D-049) or (3S)-1-(3,4-dihydroxy-phenyl)-7-phenyl-(6E)-6-hepten-3-ol, (D-092), (1-25 mg/kg BW, i.p.), was given prior to receiving TA. Changes in plasma activity of alanine transaminase (ALT), hepatic glutathione (GSH) content, the activities of superoxide dismutase (SOD) and catalase (CAT), and the expression levels of tumor necrosis factor (TNF-α) and cytochrome P450 2E1 (CYP 2E1) were determined at 24 h after TA-treatment. C. comosa extract suppressed the elevation of plasma ALT level in the TA-induced acute hepatotoxicity with increases in hepatic SOD and CAT activities. The protective effect was observed at 1 and 6 h prior to receiving TA and the effective dose was at 25 mg/kg BW. For pretreatment with diarylheptanoids, only non-phenolic diarylheptanoid, D-049 (5-25 mg/kg BW), provided the protection, but not phenolic diarylheptanoid, D-092. Moreover, D-049 suppressed the expression of pro-inflammatory cytokine TNF-α and CYP 2E1. These findings suggest that D-049 is an active principle in C.comosa that contributes hepatoprotection against TA-induced oxidative damage. It may mediate through its increased intracellular antioxidant enzymatic detoxification, which subsequently decrease the formation of bioactive metabolites of TA.


Curcuma comosa; Diarylheptanoids; Antioxidant; Hepatoprotection; Thioacetamide

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