human nonhuman signal transduction priority journal 160 Humans 158 Animals 152 controlled study 104 animal cell 100 Signal Transduction 96 article 96 human cell 92 protein expression 92 mouse 88 metabolism 80 animal 76 Mice 72 unclassified drug 60 protein function 58 animal experiment 48 male 46 Article 44 cell proliferation 42 genetics 40 animal model 36 female 36 apoptosis 34 messenger RNA 34 animal tissue 32 enzyme activation 32 Female 30