| ARC | Arcuate Nucleus |
| AVP | Arginine-Vasopressin Peptide |
| b-HLH-PAS | Basic Helix–Loop–Helix/Per-ARNT-SIM |
| BMAL1 | Brain and Muscle ARNT-Like 1 |
| CBP | CREB Binding Protein |
| CCG | Clock-Controlled Genes |
| CHK1/2 | Checkpoint Kinase 1/2 |
| CK2 | Casein Kinase 2 |
| CLOCK | Circadian Locomotor Output Cycles Kaput |
| CpG | 5’-Cytosine-phosphate-Guanine-3’ dinucleotide |
| Cry1-2 | Cryptochrome1-2 |
| DBP | D site of albumin promoter (albumin D-box) binding protein |
| EZH2 | Enhancer of Zeste Homolog 2 |
| H3K27 | Histone H3 lysine 27 residue |
| H3K27me3 | tri-methylated lysine 27 of histone H3 |
| H3K36me3 | tri-methylated lysine 36 residue of histone H3 |
| H3K4me3 | tri-methylated lysine 4 residue of histone H3 |
| H3K9me3 | tri-methylated lysine 9 residue of histone H3 |
| HAT | Histone Acetyl Transferase |
| HIF | Hypoxia-Inducible Factor |
| HSF1 | Heat Shock Transcription Factor 1 |
| Jarid1A | histone demethylase Jumonji/ARID Domain-containing protein 1A |
| JMJD5 | Jumonji-C (JmjC) Domain-containing protein 5 |
| MLL1 | Methyltransferase mixed Lineage Leukemia 1 |
| Myc | proto-oncogene MYC |
| NAMPT | Nicotinamide phosphoribosyltransferase |
| NONO | Non-POU Domain-Containing Octamer-Binding Protein |
| p16-Ink4A | Cyclin-Dependent Kinase Inhibitor 2A |
| p300 | histone acetyltransferase p300 |
| PAI-1 | Plasminogen Activator Inhibitor 1 |
| Per1-2 | Period1-2 |
| PGC-1α | Peroxisome proliferator-activated receptor-gamma Coactivator -1alpha |
| REV-ERBα/β | orphan nuclear-receptor genes Rev-Erbα/β |
| ROR α/β | Orphan receptor Response α/β |
| RTH | Retinohypothalamic Tract |
| SCN | Suprachiasmatic Nucleus |
| SIRT | Sirtuin |
| TEF | Thyrotroph Embryonic Factor |
| TGF-β | Transforming Growth Factor beta |
| VIP | Vasoactive Intestinal Peptide |
| VMH | Ventromedial Hypothalamus |
| Wnt | Wingless-type MMTV integration site family |