title: Changes in gastro-intestinal serotonin content associated with fasting and satiation.
abstract: Rats fasted for 24 h were fed for 3 h, after which time food was removed. Food intake decreased serotonin levels in the stomach and duodenum by 30 and 40%, respectively. These changes persisted for about 3 h. Food intake did not change tryptophan content in the stomach, while, in the duodenum, tryptophan level rose by 100% at the end of the feeding period and remained elevated for about 9 h.
mesh_terms: D000818:Animals; D004386:Duodenum / Q000378:metabolism*; D005215:Fasting; D005753:Gastric Mucosa / Q000378:metabolism*; D008297:Male; D051381:Rats; D012527:Satiation / Q000502:physiology*; D012701:Serotonin / Q000378:metabolism*; D014364:Tryptophan / Q000378:metabolism
chemical_list: D012701:Serotonin; D014364:Tryptophan