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| Titel: |
Antiinflammatory and Analgesic Effects of <i>Phlomis lanceolata </i>Boiss. and Hohen. Extracts and Examination of their Components |
| Auteur: |
M. Mohajer P. Sarkhail N. Hajarolasvadi M.J. Zamani R. Khorasani A. Shafiee G. Amin M. Abdollahi |
| Verschenen in: |
International journal of pharmacology |
| Paginering: | Jaargang 2 (2006) nr. 1 pagina's 50-54 |
| Jaar: |
2006 |
| Inhoud: |
The purpose of this investigation was to study the anti-inflammatory and analgesic properties of total extract and four fractions (ether, ethyl acetate, n-butanol and water) from <i>Phlomis</i> <i>lanceolata</i> (Lamiaceae) in mice. The plant material was extracted with methanol. In order to estimate the polarity of the active compounds, the total extract was dissolved in water and the water soluble portion was successively partitioned between ether, ethyl acetate and <i>n</i>-buthanol. The total extract and four fractions were analyzed by Thin Layer Chromatography (TLC) by use of specific reagents. Dose of 100 mg kg <sup>1</sup> of each extracts were used in carrageenan-induced paw edema, formalin and writhing nociception tests in mice. All compounds reduced paw edema in comparison to the control group at 1, 3, 5 and 7 h post carrageenan injection. The total, ether and aqueous extracts were similar to indomethacin while the ethyl acetate extract was weaker than indomethacin in reduction of paw edema. All extracts induced antinociception in both phases of formalin test. The total and ether extracts were as potent as indomethacin in both phases of formalin test. The ethyl acetate extract was weaker than indomethacin in the second phase of formalin-test while the <i>n</i>-butanol and aqueous extracts showed more antinociception than indomethacin in the second phase of formalin test. All extracts as well as indomethacin induced antinociception in writhing test in comparison to control. The total and aqueous extracts induced the same antinociception as indomethacin while ether, ethyl acetate and <i>n</i>-butanol showed weaker antinociception than indomethacin. Positive results for iridoids and phenolic compounds were indicated by phytochemical analysis of total extract. Phenolic compounds were found in four fractions whereas only <i>n</i>-butanol and aqueous fractions showed positive results for iridoid glycosides. The higher antinociceptive effects of <i>n</i>-butanol and aqueous extracts in the inflammatory phase of formalin test among different extracts tested, might back to the presence of iridoid glycosides, phenolic glycosides or other glycosides. These data suggest that different extracts of <i>P. lanceolata</i> produce different antinociceptive activities that could be due to the effect of one or a combination of the bioactive components in each extract. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 42 gevonden artikelen
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