[Lipid, collagen and mucopolysaccharide metabolism in workers exposed to occupational noise]

In forty-nine workers of steelworks, exposed to noise of 88-112 dBA level, the concentration of total lipids, phospholipids, lipoproteins beta, total cholesterol, triglycerides and free fatty acids was determined. In addition, in the urine collected at night and urine collected within 8 working hours, the concentration of hydroxyproline (HP) and glycosaminoglycans (GAG) was determined. The studies showed an increase in all test kinds of fats significant for total lipids and phospholipids. This may imply the atheromatogenic effect of noise. On the other hand, no changes have been found in HP and GAG excretion.