article 270 nonhuman 183 priority journal 175 controlled study 172 Animals 148 unclassified drug 94 Humans 90 animal cell 86 metabolism 84 protein expression 82 human 80 Mice 67 mouse 65 genetics 60 human cell 59 signal transduction 57 protein function 51 animal experiment 45 animal 43 messenger RNA 40 Protein Binding 39 Signal Transduction 39 physiology 39 male 38 Molecular Sequence Data 37 Female 36 Cell Line 35 Male 34 animal tissue 33 female 32