Animals article 6 nonhuman 6 priority journal 6 promoter region 6 Apoptosis 5 Genes 5 Mice 5 Promoter Regions (Genetics) 5 RNA 5 RNA, Messenger 5 Tissue 5 animal cell 5 bcl-X Protein 5 controlled study 5 gene expression 5 protein bcl x 5 COS Cells 4 Gene Expression Regulation 4 Hormones 4 Male 4 Plasmids 4 Reverse Transcriptase Polymerase Chain Reaction 4 Thymus Gland 4 Transcription, Genetic 4 animal experiment 4 glucocorticoid 4 male 4 mouse 4 Acetylation 3