http://jcps.bjmu.edu.cn

Journal of Chinese Pharmaceutical Sciences ›› 2014, Vol. 23 ›› Issue (7): 480-489.DOI: 10.5246/jcps.2014.07.063

• Original articles • Previous Articles     Next Articles

Comparative study of chemical composition, antinociceptive effect and acute toxicity of the essential oils of three Asarum drugs

Bingbing Wang, Wen Qi, Lili Wang, Deqiang Kong, Yoshihiro Kano, Jingxin Li, Dan Yuan*   

  1. Department of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China
  • Received:2014-03-12 Revised:2014-04-09 Online:2014-07-18 Published:2014-04-29
  • Contact: Tel.: 86-24-23986502, Fax: 86-24-23986502
  • Supported by:

    National Science and Technology Support Program during the Twelfth Five-Year Plan of China (Grant No. 2011BAI03B05), the Distinguished Professor Foundation of Liaoning Province of China of 2011, Innovative Drug Incubation Base Plan Project from Liaoning Province of China of 2013 (Grant No. 2013226027) and National College Students Innovative and Entrepreneurial Training Program of China (Grant No. 201310163019).

Abstract:

In the present study, the chemical composition, antinociceptive effect and acute toxicity of essential oils (EOs) of Asarumheterotropoides Fr. Schmidt var. mandshuricum (Maxim.) Kitag. (AHM),A. sieboldii Miq. var. seoulense Nakai (ASS) and A. himalaicum Hook. f. et Thoms. ex Klotzsch. (AH) were comparatively evaluated. A total of 55 compounds were identified in EOs of AHM, ASS andAH by GC-MS. Methyleugenol (20.16%–62.89%), safrole (2.67%-32.42%), 3,5-dimethoxytoluene (2.00%-18.59%) and eucarvone (1.52%-19.16%) were the major constituents of EO of AHM, and methyleugenol (48.35%-61.06%), eucarvone (11.13%-13.93%) and elemicin (4.79%-11.14%) were the major constituents of EO of ASS. The EO of AH was different from that of AHM and ASS, in which patchouli alcohol (27.42%-51.95%) and elemicin (13.11%-42.23%) were found in a greater amount. Moreover, the antinociceptive effect of EOs of AHM (5.5, 11.0, 16.5 μL/kg) and AH (2.0, 4.0, 6.0 μL/kg) was comparatively assayed in acetic acid-induced writhing, hot plate and formalin tests. The results indicated a weak central, but potent peripheral antinociceptive effect of EO of AHM, and more potent central and peripheral antinociceptive effect of EO of AH. The LD50 of the EOs of AHM and AH were 1.7 and 7.7 mL/kg, respectively. These findings suggest that EOs of AHM and AH possess evident antinociceptive activity and are probably safe within the range of its clinical doses. However, their chemical compositions are quite different. Therefore, AH can be clinically used as an herbal medicinal product with broad analgesic effects, but should not be confused with AHM and ASS used in traditional Chinese medicine.

Key words: Asarum heterotropoides var. mandshuricum, A. sieboldii var. seoulens, A. himalaicum, Essential oil, Antinociceptive effect, Acute toxicity

CLC Number: 

Supporting: