Mice article enzyme activity priority journal nonhuman 92 mouse 91 Animals 86 controlled study 85 animal experiment 58 animal tissue 48 animal model 42 Female 41 protein expression 41 animal cell 40 Humans 31 female 30 Male 29 Mice, Inbred BALB C 28 signal transduction 24 male 23 Liver 22 human 21 Cell Line, Tumor 19 metabolism 19 unclassified drug 19 Animalia 18 Mus 18 Signal Transduction 16 human cell 16 animal 15