Animals nonhuman article 658 priority journal 638 controlled study 620 animal 492 animal cell 436 genetics 422 Mice 364 Humans 358 mouse 352 metabolism 348 human 310 animal experiment 278 unclassified drug 270 female 262 Female 246 Article 238 protein expression 236 animal tissue 232 male 230 Male 228 gene expression 218 messenger RNA 172 Molecular Sequence Data 154 animal model 150 nucleotide sequence 150 physiology 150 signal transduction 150 gene expression regulation 146