Preeclampsia is a complication of pregnancy which is characterized by dysfunction of vitally important organs, especially of the vascular system and blood flow. Preeclampsia is almost always accompanied by severe dysfunction of the kidneys, from proteinuria to acute renal failure. 30 pregnant women at 36–38 weeks of gestation with clinically diagnosed preeclampsia of pregnancy have been under our observation; the average age was 26±5. All pregnant women were made complex study of subfractional content of urine by using the method of laser correlation spectroscopy (LCS) in order to detect the molecular size of BTH proteins responsible for renal homeostasis. As a result of studies there was obtained clear correlation of molecular size of BTH uroproteins depending on the course degree of preeclampsia.
