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Original article

Serum levels of soluble intercellular adhesion molecule-1 (s-ICAM-1) and soluble endothelial leukocyte adhesion molecule-1(s-ELAM-1) in amyotrophic lateral sclerosis

, , , &
Pages 118-121 | Received 05 Apr 2004, Accepted 15 Dec 2004, Published online: 20 Apr 2012
 

Abstract

Immunological disturbances have been implicated in the pathogenesis of amyotrophic lateral sclerosis (ALS). Adhesion molecules are markers of activated endothelial cells up-regulated by action of cytokines. To investigate the activation or inactivation of the vascular cells in ALS, serum soluble intercellular adhesion molecule-1 (s-ICAM-1) and soluble E-selectin (s-ELAM-1) were evaluated (ELISA) in 16 patients with ALS, 30 patients with non-inflammatory neurological diseases (NINDS) and 15 healthy control subjects. Patients with ALS had no higher s-ICAM-1 levels compared with the NINDS patients and the control subjects (p<0.31 and p<0.21, respectively). s-ELAM levels were not statistically significant compared with the NINDS patients and healthy subjects (p<0.21 and p<0.24, respectively). We conclude that the low values of s-ICAM-1 and s-ELAM-1 in the serum of ALS patients do not exclude the presence of immunological abnormality in this disorder. Soluble E-selectin is a glycoprotein which is considered an exclusive marker of endothelial activation. Its low level in our study may suggest a neural rather than an endothelial s-ICAM origin in patients with ALS.

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