gene expression nonhuman 330 article 274 priority journal 266 Animals 264 controlled study 262 genetics 244 metabolism 216 Humans 152 animal 150 human 150 unclassified drug 150 Article 126 mouse 120 messenger RNA 114 Mice 112 animal cell 110 female 102 gene expression regulation 102 genetic transcription 94 physiology 94 animal experiment 90 protein expression 86 nucleotide sequence 84 Gene Expression 82 Female 80 animal tissue 76 RNA, Messenger 74 male 74 Molecular Sequence Data 70