Abstract
We investigated the density distribution of neutrophils in peripheral blood of allergic subjects. We divided neutrophils into four groups: fraction 1 (density > 1.085), fraction 2 (1.081 <density ≤ 1.085), fraction 3 (1.077 <density ≤1.081) and fraction 4 (density ≤1.077). The percentage of neutrophils in fraction 2 in allergic rhinitis (AR) subjects or asthmatics was lower than that in normals (p <0.01). The percentage of neutrophils in fraction 3 and fraction 4 from AR or asthmatics was greater than that in normals (fraction 3, p