controlled study male physiology Male 202 Animals 184 animal 182 nonhuman 182 Article 142 female 136 priority journal 133 animal experiment 122 adult 117 metabolism 114 Female 103 animal tissue 98 article 90 human 80 Humans 72 mouse 66 animal cell 55 drug effects 49 Mice 46 memory consolidation 44 Adult 43 genetics 41 protein expression 40 brain 38 Memory 37 animal behavior 37 long term memory 36