article 305 nonhuman 234 priority journal 195 metabolism 151 controlled study 131 Animal 128 Animals 116 phosphate 96 animal 95 Kinetics 87 unclassified drug 87 Rats 83 rat 83 animal experiment 80 enzyme activity 76 enzymology 73 Support, Non-U.S. Gov't 70 in vitro study 70 human 66 biosynthesis 61 Phosphates 60 chemistry 60 Female 58 animal cell 58 animal tissue 55 Article 54 Trypanosoma cruzi 52 protein expression 49 female 48 Humans 46