Serum leptin concentrations correlate to plasma insulin concentrations independent of body fat content in chronic renal failure.

Abstract
The ob gene product leptin is secreted by fat cells and reflects the content of fat in the body. Leptin and insulin concentrations as well as body weight are interrelated and a direct correlation has been found between these concentrations in humans with normal renal function. Markedly elevated serum leptin concentrations have recently been reported in patients with chronic renal failure (CRF). The aim of the present study was to investigate the relation between serum leptin and plasma insulin in patients with advanced CRF.

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