GAST and Fabry disease: In investigating the relationship between the gastric motility disorder and the gastrointestinal hormone abnormality in the GI mucosa of FD patients, Van Oudenhove et al. [56] found that the levels of gastrin in the postprandial plasma and the gastric mucosa were significantly higher in FD patients with delayed emptying and suggested that the altered gastrin levels may play a role in the pathophysiology of the abnormal gastric motility of FD patients.