animal experiment metabolism mouse nonhuman Animals 103 animal 102 controlled study 102 Mice 89 priority journal 73 Article 70 animal model 68 animal tissue 61 animal cell 53 male 51 female 49 genetics 44 Female 41 Male 41 human 39 physiology 39 Humans 37 protein expression 37 article 36 pathology 35 drug effects 34 unclassified drug 33 in vivo study 26 signal transduction 26 C57BL mouse 25 Mice, Inbred C57BL 25