Animals 3 Arcuate nucleus 3 DNA Fragmentation 3 Gene Expression Regulation, Developmental 3 Gene expression 3 Genome 3 Hypothalamus 3 Melanocortin 3 Mice 3 Mice, Transgenic 3 Neuron-specific expression 3 Neurons 3 Organ Specificity 3 Pituitary 3 Pro-Opiomelanocortin 3 Pro-opiomelanocortin 3 Rhombencephalon 3 Transgenic mice 3 animal cell 3 animal experiment 3 animal tissue 3 article 3 cell specificity 3 gene amplification 3 gene deletion 3 gene expression regulation 3 gene library 3 gene location 3 genome 3 hormonal regulation 3