The characteristics of disorders in carbohydrate metabolism and insulin and C-peptide secretion in patients with chronic glomerulonephritis in developing chronic kidney failure

The authors studied hormonal regulation of carbohydrate metabolism by secretion of insulin, C-peptide in 86 patients with chronic glomerulonephritis with different functional condition of the kidneys. There was a decrease in glucose tolerance, basal and reactive hyperinsulinemia, elevated level of C-peptide (relative insulin insufficiency). Mechanism of arising changes in the carbohydrate and insulin metabolism is complex and multicomponent. This includes renal lesion and consequent inhibition of hormone metabolism. Intensification of glomerular filtration is associated with inhibition of filtration of insulin and C-peptide derivants. Accumulation of nitrogen metabolism products results in changed response of pancreatic beta-cells to glucose. General disturbances of metabolism are accompanied by increasing levels of hormonal and nonhormonal contrainsular substances.