Antiinflammatory and Antinociceptive Activities of Zingiber zerumbet Methanol Extract in Experimental Model Systems

作者：Zakaria Z A; Mohamad A S; Chear C T; Wong Y Y; Israf D A; Sulaiman M R^*

来源：Medical Principles and Practice, 2010, 19(4): 287-294.

DOI：10.1159/000312715

• Zingiber zerumbet
• Methanol extract
• Antiinflammatory activity
• Antinociceptive activity

Objective: The present study was carried out to determine the antiinflammatory and antinociceptive activities of a methanol extract of Zingiber zerumbet rhizomes (MEZZ) using various experimental model systems. Materials and Methods: The MEZZ was prepared by macerating oven-dried (50 degrees C) powdered rhizomes (1.2 kg) of Z. zerumbet in 80% methanol in a ratio of 1: 20 (w/v) for 48 h. The supernatant was collected, filtered and evaporated to dryness under reduced pressure (50 degrees C) yielding approximately 21.0 g of the crude dried extract. The crude dried extract was stored at -20 degrees C prior to use and was dissolved in normal saline (0.9% NaCl) immediately before administration at concentrations required to produce doses of 25, 50 and 100mg/kg. Results: All dosages of MEZZ showed significant (p<0.05) antiedema activity when assessed using the carrageenan-induced paw edema test and the cotton-pellet-induced granuloma test. The MEZZ exhibited significant (p<0.05) antinociceptive activity when assessed by the writhing, hot plate and formalin tests. Pretreatment with naloxone (5 mg/kg) significantly decreased the latency of discomfort produced by the 100 mg/kg dose of MEZZ in the hot plate test. Conclusion: MEZZ produced antiinflammatory and antinociceptive activities which may involve the inhibition of bradykinin-, prostaglandin-, histamine- and opioid-mediated processes.

• 出版日期2010