Abstract
179 compounds in a Mongolian compound library were investigated for their inhibitory effect on the in vitro growth of Plasmodium falciparum and Toxoplasma gondii. Among these compounds, brachangobinan A at a half-maximal inhibition concentration (IC50) of 2.62μM and a selectivity index (SI) of 27.91; 2-(2'-hydroxy-5'-O-methylphenyl)-5-(2″,5″-dihydroxyphenyl)oxazole (IC50 3.58μM and SI 24.66); chrysosplenetin (IC50 3.78μM and SI 15.26); 4,11-di-O-galloylbergenin (IC50 3.87μM and SI 13.38); and 2-(2',5'-dihydroxyphenyl)-5-(2″-hydroxyphenyl)oxazole (IC50 6.94μM and SI 11.48) were identified as potential inhibitors of P. falciparum multiplication. Additionally, tricin (IC50 12.94μM and SI > 23.40) was identified as a potential inhibitor of T. gondii multiplication. Our findings represent a good starting point for developing novel antimalarial and anti-Toxoplasma therapeutics from Mongolian compounds.
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