human 268 article 239 Humans 234 priority journal 224 controlled study 219 Animals 215 nonhuman 213 Male 183 male 181 female 177 Female 164 adult 128 animal 122 animal experiment 109 Article 104 metabolism 98 mouse 94 physiology 89 Mice 88 Adult 74 animal model 70 pathophysiology 58 Middle Aged 56 animal tissue 56 clinical article 53 unclassified drug 52 protein expression 51 genetics 49 depression 48 review 48