messenger RNA 146 human 103 Article 98 Humans 89 genetics 86 controlled study 80 metabolism 72 RNA, Messenger 66 male 55 nonhuman 48 female 45 gene expression 44 unclassified drug 42 protein expression 39 Animals 37 adult 35 animal 35 real time polymerase chain reaction 34 pathology 33 gene expression regulation 32 human cell 30 Female 29 animal experiment 27 Male 26 Western blotting 24 animal tissue 24 middle aged 24 mouse 24 animal model 23 microRNA 22