Animals 127 animal metabolism 95 genetics 92 mouse 71 human 64 Article 61 Humans 59 Mice 58 controlled study 57 nonhuman 57 gene expression regulation 49 animal experiment 40 gene expression 39 male 36 animal model 32 pathology 31 animal cell 30 animal tissue 30 cell proliferation 27 rat 27 protein expression 26 upregulation 25 female 24 Male 23 Rats 23 unclassified drug 23 human cell 22 Cell Proliferation 21 Gene Expression Regulation, Neoplastic 21