Abstract:【Abstract】Objective To investigate the effects of gastrodin on the levels of neurobiochemical modulators shared by brain and stomach in a rat model of FD with anxietylike gastric hypersensitivity induced by sequential stress.MethodsRats were sequentially subjected to acute gastric irritation (AGI) and maternal separation (MS) early in life and restraint stress (RS) in adulthood. Then they were given intraperitoneal injection of 0.9% saline (2.0 mL/kg, for control and model group), buspirone (3.125 mg/kg, for buspirone group) or Gastrodin (Gas, 62.5 or 125.0 mg/kg for Gas low or high dose groups), respectively (one time a day at 8:00 o’clock a.m. for 7 consecutive days). After that blood collection were performed and the rats were finally sacrificed by decapitation. The hippocampus and gastric fundus were promptly isolated and stored at 80 ℃ for ELISA measurements of 5hydroxytryptamine (5HT), γaminobutyric acid (GABA), brainderived neurotrophic factor (BDNF) and nesfatin1.Results Compared with the control group, the hippocampal, plasmic and gastric levels of 5HT, BDNF and GABA decreased significantly (P<001), while the concentrations of nesfatin1 increased greatly (P<001). Gas could significantly attenuate the diminution of the hippocampal, plasmic and gastric levels of 5HT, BDNF and GABA, but inhibit the increase of nesfatin1 in the same sites (P<001 vs. model rats). Conclusions The results implied that Gas could influence the levels of 5HT, GABA, BDNF and nesfatin1 in hippocampus, plasma and gastric tissue of the sequentialstresstreated rats, and could be used in the treatment of FD with anxietylike gastric hypersensitivity.