Serum uric acid concentration is associated with lower glomerular filtration rate in children undergoing kidney transplantation.

Background: The relationship between serum concentration of uric acid (UA) and chronic kidney disease is complex due to many confounding variables. There is currently debate over whether hyperuricemia acts as a marker of kidney disease or as an independent risk factor.

Objectives: To test the impact of serum UA concentration on the estimated glomerular filtration rate (GFR) of children undergoing kidney transplantation.

Abdominal circumference measurement by ultrasound does not enhance estimating the association of visceral fat with cardiovascular risk.

Objectives: To evaluate the association between visceral fat and cardiovascular risk factors and to compare the ultrasonographic measurements of abdominal visceral fat with abdominal circumference (AC).

Methods: This observational cross-sectional study categorized pubertal and postpubertal adolescents into a control group (n = 49) and an obese group (n = 46). Weight, height, AC, blood pressure, biochemical tests (lipid profile, triacylglycerols, fasting glucose for insulinemia, and serum uric acid), and ultrasound to measure visceral fat were assessed.