 Several experimental treatments have shown promise in animal models . These include inhibitors of <unk> <unk> and <unk> <unk> , <unk> <unk> inhibitors , <unk> collected from frogs in the genus <unk> ( P. <unk> and P. <unk> ) , the <unk> lactone <unk> ( <unk> ) , which affects the growth of cultured <unk> @-@ phase Trypanosoma cruzi , inhibitors of <unk> uptake , and inhibitors of enzymes involved in <unk> metabolism . <unk> , new drug targets may be revealed following the sequencing of the T. cruzi genome . 
