Abstract |
The leaves of Alchornea floribunda and Alchornea cordifolia are used traditionally as topical anti-inflammatory agents. In this study, two highly lipophilic fractions AFLF and ACLF isolated from A. floribunda and A. cordifolia leaves respectively were investigated for topical anti-inflammatory effects using xylene-induced mice ear oedema as a model of inflammation. AFLF and ACLF at 5 mg per ear showed significant (p < 0.01) topical anti-inflammatory effect with oedema inhibitions of 64.0% and 79.0% at 2 h, respectively. When compared to indomethacin (5 mg per ear), these fractions showed significantly (p < 0.05) higher topical anti-inflammatory effect. Gas chromatography-mass spectrometry analysis revealed that AFLF is composed mainly of long chain saturated and unsaturated hydrocarbons (18.78%) and their oxygenated derivatives (1.89%); while ACLF is rich in volatile oils eugenol (21.26%) and cadinol (4.76%), and other constituents like, nanocosaine (36.86%) and steroid derivatives, ethyl iso-allocholate (4.59%) and 3-acetoxy-7,8-epoxylanostan-1-ol (15.86%). Analysis of the volatile oil (ACV) extracted from the fresh leaves of A. cordifolia revealed the presence of high concentrations of eugenol (41.7%), cadinol (2.46%), Caryophylene (1.04%), Linalool (30.59%) and (E)-α-bergamotene (4.54%). These compounds could be contributing to the topical anti-inflammatory effects of A. floribunda and A. cordifolia leaf extracts.
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Authors | F B C Okoye, P O Osadebe, C S Nworu, N N Okoye, E O Omeje, C O Esimone |
Journal | Natural product research
(Nat Prod Res)
Vol. 25
Issue 20
Pg. 1941-9
(Dec 2011)
ISSN: 1478-6427 [Electronic] England |
PMID | 21707250
(Publication Type: Journal Article)
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Chemical References |
- Acyclic Monoterpenes
- Anti-Inflammatory Agents
- Bridged Bicyclo Compounds
- Hydrocarbons
- Monoterpenes
- Oils, Volatile
- Plant Extracts
- Polycyclic Sesquiterpenes
- Sesquiterpenes
- alpha-bergamotene
- Eugenol
- caryophyllene
- linalool
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Topics |
- Acyclic Monoterpenes
- Administration, Topical
- Animals
- Anti-Inflammatory Agents
(administration & dosage, chemistry, pharmacology)
- Bridged Bicyclo Compounds
(analysis, chemistry)
- Edema
(drug therapy)
- Eugenol
(analysis, chemistry)
- Euphorbiaceae
(chemistry)
- Gas Chromatography-Mass Spectrometry
- Hydrocarbons
(analysis, chemistry)
- Mice
- Monoterpenes
(analysis, chemistry)
- Oils, Volatile
(chemistry)
- Plant Extracts
(administration & dosage, chemistry, pharmacology)
- Plant Leaves
(chemistry)
- Polycyclic Sesquiterpenes
- Sesquiterpenes
(analysis, chemistry)
- Skin
(pathology)
- Species Specificity
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