[Plasma pancreatic glucagon during glucose tolerance test in workers exposed to vibration and noise].

Pancreatic glucagon plasma concentration (IR-G) were measured during oral glucose tolerance test (GTT) in workers exposed to whole body vibration and noise. In workers with abnormal GTT higher IR-G concentrations were found in comparison with the control group. Langerhans islet alfa cells stimulation may be responsible for a higher frequency of elevated glycemia during GTT in workers exposed to whole body vibration and noise.