female Female 254 nonhuman 252 controlled study 250 article 248 priority journal 242 Animals 234 animal experiment 162 animal cell 132 mouse 132 animal tissue 130 protein expression 124 Mice 122 Humans 114 human 112 animal 100 male 100 metabolism 96 down regulation 90 rat 90 animal model 86 gene expression regulation 86 Male 84 cell proliferation 82 Rats 80 genetics 78 signal transduction 76 gene expression 74 Gene Expression Regulation 72 messenger RNA 66