IL13 and age-related macular degeneration: Untreated AMD cell lysates also showed 177.6 % higher IL-13 protein levels compared to untreated normal cell lysates: P = 0.0286; NL UN CL = 1 ± 0.1896 a.u.; AMD UN CL = 2.776 ± 0.4021 a.u. (Figure 4F).