Humans article human 135 metabolism priority journal controlled study 91 nonhuman 71 Animals 60 animal 60 human cell 57 physiology 57 genetics 55 animal cell 46 female 45 mouse 42 protein expression 41 unclassified drug 41 Mice 40 Female 38 drug effect 37 signal transduction 37 chemistry 36 cell culture 32 Cell Line 31 cell line 31 protein binding 28 Cells, Cultured 27 protein function 26 Protein Binding 25 Signal Transduction 25