Evaluation of in vitro inhibitory effect of enoxacin on Babesia and Theileria parasites.

Enoxacin is a broad-spectrum 6-fluoronaphthyridinone antibacterial agent (fluoroquinolones) structurally related to nalidixic acid used mainly in the treatment of urinary tract infections and gonorrhea. Also it has been shown recently that it may have cancer inhibiting effect. The primary antibabesial effect of Enoxacin is due to inhibition of DNA gyrase subunit A, and DNA topoisomerase. In the present study, enoxacin was tested as a potent inhibitor against the in vitro growth of bovine and equine Piroplasms. The in vitro growth of five Babesia species that were tested was significantly inhibited (P < 0.05) by micro molar concentrations of enoxacin (IC50 values = 33.5, 15.2, 7.5 and 23.2 μM for Babesia bovis, Babesia bigemina, Babesia caballi, and Theileria equi, respectively). Enoxacin IC50 values for Babesia and Theileria parasites were satisfactory as the drug is potent antibacterial drug with minimum side effects. Therefore, enoxacin might be used for treatment of Babesiosis and Theileriosis especially in case of mixed infections with bacterial diseases or incase of animal sensitivity against diminazin toxicity. Copyright © 2015 Elsevier Inc. All rights reserved.

Citation

Mosaab A Omar, Akram Salama, Ahmed Elsify, Mohamed Abdo Rizk, Mohammad Saleh Al-Aboody, Mahmoud AbouLaila, Shimaa Abd El-Salam El-Sayed, Ikuo Igarashi. Evaluation of in vitro inhibitory effect of enoxacin on Babesia and Theileria parasites. Experimental parasitology. 2016 Feb;161:62-7

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PMID: 26724376

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