Article animal cell controlled study mouse nonhuman 174 Animals 138 animal 136 Mice 116 priority journal 116 metabolism 106 animal experiment 104 animal tissue 78 animal model 76 female 68 human 66 male 66 protein expression 66 unclassified drug 66 Humans 58 drug effects 54 genetics 50 in vitro study 46 pathology 44 Female 42 human cell 40 in vivo study 40 signal transduction 40 Male 38 physiology 38 cytology 36