animal cell animal experiment article nonhuman 268 controlled study 227 priority journal 204 Animals 203 mouse 143 animal model 140 female 133 Mice 131 animal tissue 123 Female 110 male 105 Male 85 protein expression 82 rat 82 Rats 71 unclassified drug 62 Mice, Inbred BALB C 52 Humans 46 cell proliferation 45 human 42 Animalia 41 animal 40 messenger RNA 39 in vitro study 37 Rats, Sprague-Dawley 36 signal transduction 34 RNA, Messenger 31