The available drugs against piroplasmosis are insufficient and faced with several challenges, such
as drug-resistant parasites and toxicity to treated animals. Therefore, the discovery of new drug
compounds is necessary for the effective control of babesiosis and theileriosis. Methanolic
Peganum harmala seed extract (MPHSE) and ethanolic
Artemisia absinthium leaf extract
(EAALE) have several medicinal properties. In the present study, the growth-inhibition effects of
MPHSE and EAALE were evaluated
in vitro and
in vivo. The half-maximal inhibitory
concentration (IC
50) values for MPHSE against
Babesia bovis, B. bigemina, B. divergens, B.
caballi, and
Theileria equi were 24.9 ± 1.2, 77.1 ± 2.3, 61.1 ± 2.9, 80.8 ± 4.1, and 11.3 ± 2.1 μg/mL,
respectively. EAALE exhibited IC
50 values of 43.3 ± 3.1, 39.2 ± 2.7, 38.5 ±3.7, 50.3 ± 2.1, and
28.2 ± 2.1 μg/mL against
B. bovis, B. bigemina, B. divergens, B. caballi, and
T. equi, respectively.
The toxicity assay on Madin–Darby bovine kidney (MDBK), mouse embryonic fibroblast
(NIH/3T3), and human foreskin fibroblast (HFF) cell lines showed that MPHSE affected the
viability of MDBK, NIH/3T3, and HFF cell lines with half maximum effective concentration
(EC
50) values of 611.7± 10.9, 870 ± 22, and ˃1500 μg/mL, respectively, while EAALE exhibited
EC
50 values of 340.7 ± 8.5, 736.7 ± 9.3, and 1371.5 ± 17.3 μg/mL against MDBK, NIH/3T3, and
HFF cell lines, respectively. In the
in vivo experiment, MPHSE and EAALE oral treatments at 150
mg/kg inhibited the growth of
Babesia microti in mice by 60% and 55.1%, respectively. These
findings suggest that MPHSE and EAALE have the potential to be alternative remedies for treating
piroplasmosis.
抄録全体を表示