Male animal cell mouse nonhuman 179 Mice 168 Animals 155 controlled study 140 male 140 priority journal 126 article 125 animal experiment 114 animal model 76 animal tissue 71 protein expression 65 animal 56 unclassified drug 51 Mice, Inbred BALB C 49 female 49 Female 48 metabolism 43 Article 40 Humans 40 human 37 in vitro study 37 in vivo study 32 Mice, Inbred C57BL 31 gene expression 29 protein function 27 cell proliferation 26 Animalia 25