Male protein expression controlled study 200 male 194 nonhuman 186 Animals 180 priority journal 170 article 156 animal experiment 132 animal cell 126 Mice 104 mouse 100 Humans 96 animal tissue 88 female 82 human 82 Female 78 animal model 76 animal 70 metabolism 64 human cell 62 unclassified drug 58 cell proliferation 54 Article 52 adult 52 rat 52 messenger RNA 50 Rats 48 immunohistochemistry 46 Western blotting 40