Iranian Journal of Parasitology 2014. 9(1):90-98.

The Effects of Babesiosis on Oxidative Stress and DNA Damage in Anatolian Black Goats Naturally Infected with Babesia ovis.
Ismail Kucukkurt, I Hakki Cigerci, Sinan Ince, Esma Kozan, Ismail Aytekin, Abdullah Eryavuz, A Fatih Fidan



Background: A reactive oxygen and nitrogen intermediate produced during an inflammatory response is the important part of host-defense strategies of organ-isms to kill the parasite. However, it is not well known whether these intermediates cause DNA damage and oxidative stress in goats infected with Babesia ovis. The pur-pose of this study was to clarify the effects of babesiosis on basal levels of DNA damage and oxidative status of goats naturally infected with B.ovis.

Methods: DNA damage and antioxidant parameters were determined in B. ovis infected goats. Ten infected Anatolian Black Goats with B. ovis diagnosed via clinical signs and microscopic findings and ten healthy were used in the study.

Results: The Babesia infection increased the levels of DNA damage, malondialde-hyde (MDA), protein carbonyl content (PCO) and plasma concentration of nitric oxide metabolites (NOx), and decreased total antioxidant activities (AOA) and re-duced glutathione (GSH). A significant positive correlation between DNA damage, MDA, PCO, and NOx concentrations was found in the infected goats. DNA dam-age showed a negative association with AOA and GSH concentrations in the in-fected goats.

Conclusion: The Babesia infection increases oxidative stress markers and DNA damage and decreases AOA in goats. These results suggest that the increases in the production of free radicals due to Babesia infection not only contribute to host-de-fense strategies of organisms to kill the parasite but also induce oxidative damage in other cells.


Antioxidant activity; Babesia ovis; DNA damage; oxidative stress

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