Animals 151 animal controlled study genetics mouse nonhuman 147 Mice 137 metabolism 132 priority journal 106 animal experiment 102 animal cell 95 Article 86 animal model 71 human 71 Humans 69 animal tissue 66 protein expression 63 article 61 female 61 male 54 unclassified drug 53 Female 51 physiology 48 gene expression 47 Male 46 pathology 45 gene expression regulation 44 protein function 44 cytology 43 messenger RNA 43