Volume 10, Issue 3 (7-2006)                   ibj 2006, 10(3): 145-149 | Back to browse issues page

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Parsaee H, Shafiee-Nick R. Anti-Spasmodic and Anti-Nociceptive Effects of Teucrium polium Aqueous Extract . ibj. 2006; 10 (3) :145-149
URL: http://ibj.pasteur.ac.ir/article-1-369-en.html
Background: Teucrium polium has been known as an important traditional medicinal plant and is used for different therapeutic purposes such as gastrointestinal disorders. Therefore, the anti-spasmodic and antinociceptive activities of aqueous extract of Teucrium polium w as examined. Methods: Anti-spasmodic effect of different concentrations (47-470 mg/l) of Teucrium polium extract was assessed on acetylcholine (220 nM) precontracted guinea pig isolated ileum. The anti-cholinergic effect of the plant was also examined by obtaining concentration-response curves in the absence and presence of Teucrium polium extract (470 mg/l) and atropine (10 nM). Anti-nociceptive effect of different doses (30-240 mg/kg ) of Teucrium polium aqueous extract was determined by hot-plate test on mice and compared with the effect of morphine (10 mg/kg) as positive control. Results: Maximum inhibition response induced by Teucrium polium extract on contraction induced by acetylcholine (220 nM) was 93.5%. In the absence and presence of Teucrium polium extract (470 mg/l) and atropine (10 nM) the EC50 (the effective concentration causing 50% of maximum response) of Ach were 28.3 ± 2.1, 55.4 ± 3.7 and 208.1 ± 9.2 nM respectively. There was also a parallel rightward shift in the log concentration-response curve of acetylcholine in the presence of atropine, but a nonparallel shift in the presence of Teucrium polium extract. The Teucrium polium extract increased reaction time dose-dependently (P<0.01 for all doses). However the anti-nociceptive effect of extract was significantly less than that of morphine (P<0.001). Conclusion: These results show that Teucrium polium aqueous extract have anti-nociceptive and anti-spasmodic effects and may have some clinical benefits for gastrointestinal disorders.
Type of Study: Full Length |

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