controlled study cytology physiology nonhuman 72 Animals 70 animal 70 priority journal 64 metabolism 57 animal cell 51 mouse 43 article 42 Mice 39 male 35 animal tissue 34 female 33 Article 32 animal experiment 30 genetics 28 Female 23 Male 23 protein expression 23 Neurons 21 nerve cell 21 unclassified drug 20 drug effects 19 drug effect 18 adult 16 human 16 Cells, Cultured 15 cell culture 15