Activity of compounds isolated from Chilean lichens against experimental cutaneous leishmaniasis.
|
| Abstract |
Three secondary metabolites isolated from Chilean lichens, (+) usnic acid, pannarine and 1'-chloropannarine, were tested against promastigotes forms of three strains of Leishmania ssp. Pannarine and 1'-chloropannarine exhibited in vitro activity at 50 micrograms/ml and (+) usnic acid at 25 micrograms/ml. BALB/c mice infected with Leishmania amazonensis were treated 4 weeks post-infection with (+) usnic acid by subcutaneous or oral routes for 15 days at 25 mg/kg or by five intralesional injections at interval of 4 days at 25 mg/kg of body weight. The reference drug, N-methylglucamine antimonate (Glucantime), was administered by subcutaneous injections (regimens of 28 mg of pentavalent antimony) for 15 days. The subcutaneous and oral treatments with (+) usnic did not produce any effect, but by intralesional administration we observed a significant effect that reduced by 43.34% the weight lesions and by 72.28% the parasites loads in infected footpads.
|
|---|---|
| Authors | A Fournet, M E Ferreira, A Rojas de Arias, S Torres de Ortiz, A Inchausti, G Yaluff, W Quilhot, E Fernandez, M E Hidalgo |
| Journal | Comparative biochemistry and physiology. Part C, Pharmacology, toxicology & endocrinology (Comp Biochem Physiol C Pharmacol Toxicol Endocrinol) Vol. 116 Issue 1 Pg. 51-4 (Jan 1997) ISSN: 1367-8280 [Print] United States |
| PMID | 9080673 (Publication Type: Journal Article) |
| Chemical References |
|
| Topics |
|
Join CureHunter, for free Research Interface BASIC access!
Realize the full power of the drug-disease research graph!