1Department of Veterinary Parasitology, Babol Branch, Islamic Azad University, Babol, Iran
2Department of Veterinary Pharmacology, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Amol, Iran
3Department of Pharmacology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
In Iranian folk medicine Artemisia sieberi has been used for treatment of parasite infections in human and animals. The present study was designed to evaluate the in vitro and in vivo effects of A. sieberi essential oil (EO) against Trichomonas gallinae. Trichomonas gallinae were recovered by wet mount method from infected native pigeons. The in vitro assays were accomplished in multi-well plates containing metronidazole (MTZ) as a standard antitrichomonal and EO in final concentrations of 2.5, 5, 10, 20, 50, and 100 μg/ml of culture medium containing 104 parasites. The in vivo assay was performed on 40 experimentally infected pigeons receiving 25 and 50 mg/kg of MTZ and EO for 7 successive days. Gas chromatographic (GC) analysis was performed to reveal chemical constituents of the EO. At 20 µg/ml, MTZ resulted in no viable trophozoite in culture medium after 24 h incubation period. While the 24 h MIC of EO was 10 µg/ml. Treatment with EO at dose of 50 mg/kg after 4 days led to full recovery of infected pigeons but for MTZ at the same dose 5 days were spent. Major constituents of EO were α-thujone (31.5%) and β-thujone (11.92%). Data of the present study introduced A. sieberi as a natural potent antitrichomonal agent effective against T. gallinae.
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