Figure 1.

High levels of plasma sPLA2-IIa are associated with lung cancer as compared with benign lung nodule. (a) Plasma samples were diluted ten times and then subjected to ELISA analysis for sPLA2-IIa levels in duplicate of each sample. The average of the duplicate samples was calculated against to the standard curve in each experiment and presented as pg/ml sPLA2-IIa. (b) High levels of plasma sPLA2-IIa are significantly associated with T2 lung cancer relative to T1 stage lung cancer. The dotted line indicates the optimum cutoff value of 2.4 ng/ml