| 5-HIAA | 5-hydroxyindoleacetic acid |
| 5-HT | 5-hydroxytryptamine |
| CCK | cholecystokinin |
| DA | dopamine |
| EA | electro-acupuncture |
| ELISA | enzyme-linked immunosorbent assay |
| GHRL | ghrelin |
| HPLC-ECD | high performance liquid chromatography-electrochemical detection |
| i.p. | intraperitoneal |
| NE | norepinephrine |
| NPY | neuropeptide Y |
| NTS | nucleus tractus solitarii |
| POMC | pro-opiomelanocortin |
| qRT-PCR | quantitative reverse transcription - polymerase chain reaction |