PMID: 18714535Aug 22, 2008Paper

Soluble CD40 ligand and soluble P-selectin in allergic asthma patients during exercise-induced bronchoconstriction

Journal of Investigational Allergology & Clinical Immunology
Z ZietkowskiA Bodzenta-Lukaszyk

Abstract

The interactions between CD40 and its ligand, CD40L, control humoral and cell-mediated immune responses. CD40 ligation may promote asthma-associated inflammatory responses in the airways. Many reports confirm the inflammatory basis of exercise-induced bronchoconstriction (EIB) in asthmatics. The study was conducted in a group of 19 asthmatic patients (11 with EIB, 8 without EIB) and 8 healthy volunteers. We analyzed the changes in plasma concentrations of soluble CD40 ligand (sCD40L) and soluble P-selectin (sP-selectin) induced by intensive exercise. We also studied possible correlations with the results of measurements commonly associated with asthmatic inflammation. The study revealed statistically significant higher baseline concentrations of sCD40L--but not sP-selectin--in the group of asthmatics with EIB than in those without. In the asthmatic patients with EIB, sCD40L and sP-selectin concentrations increased significantly 30 minutes after exercise and returned to baseline 24 hours after exercise. Baseline concentrations of sCD40L correlated with baseline sP-selectin or fractional exhaled nitric oxide concentration (FE(NO)), an increase in sP-selectin 30 minutes after exercise, and changes in FE(NO) or bronchial hyperrespo...Continue Reading

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