proopiomelanocortin nonhuman 54 priority journal 46 Animals 44 Pro-Opiomelanocortin 42 article 42 mouse 38 Mice 32 animal experiment 32 controlled study 30 gene expression 30 hypothalamus 26 female 24 animal tissue 22 Neurons 20 animal cell 20 male 20 Mice, Transgenic 18 Obesity 18 Vertebrata 18 human 18 Evolution, Molecular 16 Molecular Sequence Data 16 Mus musculus 16 animal 16 food intake 16 gene 16 molecular evolution 16 reporter gene 16 transgenic mouse 16