The time-dependent effect of TNF-α on apoptosis in isolated human eosinophils.

Shown is the percentage of apoptotic cells after 40 h incubation as analysed by relative DNA fragmentation assay. Values are the means ± SEM of four independent determinations using eosinophils from different donors. * indicated P<0.05, **P<0.01 and ***P<0.001 as compared with the corresponding control at the same time point.