genetics human 1,139 Humans 1,114 metabolism 594 Article 529 female 422 Animals 387 animal 387 male 383 controlled study 377 Female 364 Male 327 adult 302 nonhuman 263 pathology 234 mouse 208 gene expression regulation 197 middle aged 190 procedures 185 Mice 181 Middle Aged 179 Adult 167 gene expression 167 major clinical study 160 unclassified drug 153 biology 145 mutation 141 Computational Biology 140 Mutation 137 aged 116