[Lipid contents in blood of healthy subjects and patients with peptic ulcer during regular motor activity of the gastrointestinal tract].

The concentrations of total cholesterol, beta-lipoproteins, and triglycerides were measured three times in 20 to 65 min in venous blood of 45 men (8 normal and 37 patients with peptic ulcer). Lipid concentration in the blood was shown to vary within a wide range in just few minutes, particularly so in normal subjects. In some cases the maximal values surpassed the minimal ones twofold and even more. The chi 2 test helped detect a correlation between the content of cholesterol and triglycerides in the blood and the phase of regular motor activity of the gastrointestinal tract, which was registered by tensotransmitters located in the stomach and small intestine. Soon after the beginning of a new cycle of this motor activity cholesterol concentration in the blood increased and triglyceride level reduced. The phase of the motor activity of the gastrointestinal tract should be taken into consideration when measuring the concentrations of lipids in human blood serum.