genetics human Humans 430 metabolism 307 controlled study 232 Animals 224 animal 224 nonhuman 206 priority journal 183 Article 174 article 169 female 144 Female 129 human cell 117 male 115 protein expression 107 Male 105 unclassified drug 105 gene expression regulation 97 mouse 97 chemistry 96 pathology 91 Mice 87 adult 84 signal transduction 83 physiology 79 animal cell 78 gene expression 78 drug effects 74 protein function 70