ABSTRACT
Objective To study the role of plasma levels of gastrointestinal hormones and gallbladder kinetics in the pathogenesis of functional dyspepsia. Methods Thirty two patients with functional dyspepsia (FD) and 20 normal subjects as controls were studied. Gallbladder ejection fractions (GBEF) were determined with 99m Tc radionucleography, and plasma levels of motilin (MTL)、cholecystokinin (CCK)、 vasoactive intestinal peptide (VIP) and somatostatin (SS) were measured with radioimmunoassay. Results Both preprandial and postprandial GBEF and MTL levels were markedly lower in FD group than those in control group ( P 0.05), while the levels of postprandial CCK were significantly decreased in FD group ( P 0.05). Conclusion (1) Patients with FD might have a decreased level of preprandial and postprandial gallbladder emptying. The decrease of plasma levels of MTL、CCK and the elevation of VIP might be the cause of gallbladder slow emptying in FD. (2) Radionucleography is non invasive and safe. It can be used in the quantitative analysis and dynamic study of gallbladder and Oddi sphincter functions, and provide accurate, physiological results.