Abstract
Systemic inflammatory disorders causing renal tissue damage do so by the adherence of polymorphonuclear leukocytes to endothelium, a process that is mediated by cell surface adhesion molecules. We determined the circulating levels of serum vascular cell adhesion molecule-1 (VCAM-1) in vesicoureteric reflux (VUR) patients and investigated the relationship between serum VCAM-1, grade of VUR, and secondary renal scarring. Serum levels of VCAM-1 were measured in 53 children aged between 3 months and 15 years with VUR (13 had grade III, 29 had grade IV, and 11 had grade V) and 25 controls using ELISA. Radionuclide scanning was used to assess renal scarring. Renal scarring was found in 29 of the 53 subjects. Serum VCAM-1 was significantly higher in subjects with high grades of VUR without renal scarring (grade IV: 715.9+/-121.0 ng/ml; grade V: 778.5+/-33.2ng/ml) compared with subjects with grade III VUR without renal scarring (609.8+/-64.3ng/ml, p<0.01). Serum VCAM-1 was also significantly higher in subjects with high grades of VUR with renal scarring (grade IV: 791.2+/-131.9ng/ml; grade V: 1171.8+/-235.6 ng/ml) compared with subjects with grade III VUR with renal scarring (687.3+/-163.4 ng/ml, p<0.001).
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