animal human metabolism Animals 396 Humans 374 nonhuman 274 controlled study 210 mouse 176 priority journal 168 genetics 162 Mice 156 article 156 animal cell 148 unclassified drug 146 physiology 140 human cell 134 chemistry 126 Article 122 protein expression 118 female 108 animal experiment 104 Female 94 signal transduction 88 pathology 84 protein function 80 animal model 76 drug effects 76 gene expression regulation 72 rat 68 cytology 62