metabolism physiology animal 515 Animals 493 article 424 nonhuman 365 controlled study 335 priority journal 261 genetics 252 human 204 Article 198 Humans 188 male 179 female 163 Male 159 drug effect 156 animal experiment 155 mouse 144 animal tissue 140 Female 134 animal cell 134 signal transduction 132 unclassified drug 131 growth, development and aging 119 cytology 117 chemistry 110 Mice 108 gene expression regulation 108 gene expression 99 Signal Transduction 98