Table 3.

Summary of FACS data from peripheral blood

	Early responder asthmatics (n = 7)	Dual responder asthmatics (n = 10)
CD34+
″Pre-allergen	741 (%77)	832 (%109)
″24 hr post-allergen	776 (%108)	1068 (%89)
CD34+IL5Rα+
″Pre-allergen	7 (%3)	25 (%8)*
″24 hr post-allergen	15 (%6)	18 (%6)
CD34+CCR3+
″Pre-allergen	6 (%3)	19 (%2)*
″24 hr post-allergen	5 (%2)	17 (%6)

Data are presented as cells/106 WBC and expressed as geometric mean and standard error of geometric mean (%SEM). Significantly higher baseline (pre-allergen) levels of CD34⁺ IL5Rα⁺ and CD34⁺CCR3⁺ cells were detected in the blood of dual responder compared with early responder asthmatics. However, when pre-allergen were compared with 24 hr post-allergen levels, no significant change in numbers of blood CD34⁺IL5Rα⁺ and CD34⁺CCR3⁺ cells were detected in either group of asthmatics.

^*P < 0.05 for between group comparisons of baseline levels of progenitor cells.