FIG. 3.

Migration of PMN cells toward the inflammatory chemoattractant leukotriene B4 (LTB4). Freshly isolated primary human PMN cells were either untreated or pretreated with serial dilutions of SBLS aqueous or ethanol extracts, then added to the top chambers of trans-well migration plates. LTB4 was added to the bottom chambers, except in negative control wells. All test conditions were performed in quadruplicate. The data are shown as mean±SD and represent one of three separate experiments using cells from three different donors (*P<.05).