IL13 and asthma: By contrast, compared to Neu-Normal asthma, Neu-High asthma had higher IL-8 levels (p<0.01) and lower % predicted FEV1 (p<0.01), but similar levels of eosinophil %, IL-5, IL-13, IL-16, and PDGF-bb (Fig 4) and other cytokines and chemokines (data not shown).