Circulating Selectin- and Immunoglobulin-Type Adhesion Molecules in Acute Ischemic Stroke

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Abstract
Background and Purpose Cellular adhesion molecules mediate adhesion between endothelial cells and leukocytes as a precondition for extravasation of leukocytes at sites of tissue injury. The pattern of release of circulating adhesion molecules has been characterized in patients with acute ischemic stroke. Methods Serum concentrations of soluble selectin-type adhesion molecules (soluble endothelial leukocyte adhesion molecule–1 [sELAM-1], soluble lymph node homing receptor [sL-selectin]) and immunoglobulin-type adhesion molecules (soluble vascular cell adhesion molecule–1 [sVCAM-1], soluble intercellular adhesion molecule–1 [sICAM-1]) were serially determined (at hours 4, 8, and 10 and at days 1, 3, and 5) in 22 patients with acute ischemic stroke. As control subjects, age- and sex-matched individuals with (n=40) and without (n=22) vascular risk factors were studied. Results We observed increased concentrations of sICAM-1 and decreased levels of sL-selectin in patients with risk factors even in the absence ...