Endogenous opiates and fasting.
D000324:Adrenocorticotropic Hormone / Q000502:physiology; D000818:Animals; D004723:Endorphins / Q000502:physiology*; D005215:Fasting; D010902:Pituitary Gland / Q000502:physiology; D051381:Rats
D004723:Endorphins; D000324:Adrenocorticotropic Hormone