Article controlled study protein expression nonhuman 190 metabolism 164 priority journal 142 Animals 130 animal 130 human 130 animal experiment 118 unclassified drug 106 Humans 100 mouse 100 animal cell 98 female 96 human cell 90 male 86 animal tissue 82 drug effects 80 Female 76 genetics 72 animal model 68 Mice 66 Male 62 Western blotting 58 physiology 56 messenger RNA 54 adult 52 upregulation 52 cell proliferation 50