Fig. 2.
The affected patient's neutrophils did not aggregate when stimulated.
Neutrophils (5.5 × 106 cells/mL) were stimulated in the cuvette of an aggregometer with fMLP (not shown) or PMA (10−7 M) at 37°C. Although the control neutrophils aggregated rapidly on addition of the agonist (arrow), the tracing from the cuvette containing the patient's neutrophils showed only the upward deflection caused by dilution.
