metabolism mouse protein expression Animals 131 animal 131 nonhuman 128 controlled study 126 Mice 121 animal cell 102 priority journal 82 animal experiment 77 Article 72 human 68 genetics 64 Humans 62 article 61 female 60 unclassified drug 58 animal model 56 Female 54 animal tissue 48 male 45 cytology 43 Male 41 signal transduction 40 pathology 39 drug effects 37 human cell 37 messenger RNA 36 physiology 36