Soluble circulating cell adhesion molecules in haemolytic uraemic syndrome
1995
Plasma concentrations of soluble vascular cell adhesion molecule-1 (sVCAM-1), E-selectin (sE-selectin) and intercellular adhesion molecule-1 (sICAM-1) were measured by enzyme-linked immunosorbent assay in four groups of children. Group 1 consisted of 20 patients with acute diarrhoea-associated haemolytic uraemic syndrome (D+HUS), the aetiology of HUS being verocytotoxin-producingEscherichia coli infection in each case. Controls consisted of 11 patients who had previously had D+HUS (group 2), 12 with chronic renal failure (group 3) and 8 healthy controls (group 4). When compared with healthy controls, the acute D+HUS group had higher sVCAM-1 (median 1,875 ng/ml, range 1,200–6,450 ng/ml vs. 1,200 ng/ml, range 975–2,125 ng/ml), von Willebrand factor antigen, (1.9 U/ml, range 0.85–5.1 U/ml vs. 0.55 U/ml, range 0.3–1.57 U/ml), white cell count (WBC, 14.5×109/l, range 7.8–43.1 109/l vs. 8.9 109/l, range 5.7–10.8 109/l) and neutrophil count (PMN, 10.1×109/l, range 4.3–26.5 109/l vs. 4.3 109/l, range 3.7–6.6 109/l), allP 0.1). sVCAM-1 is elevated and sICAM-1 decreased in acute D+HUS. This pattern of altered adhesion molecule concentration is unlike that in adults with vasculitis and suggests that different endothelial regulatory factors are at play.
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