Fig. 1

AAT and IL-23 levels in CSF of ALS patients and controls. CSF specimens of patients and controls were determined for AAT (a) and IL-23 (b) by ELISA kit and Human Magnetic Luminex screening assay, respectively. Results are expressed as mean ± SEM using Student’s t test for calculating the statistical significance of the difference between the two tested groups. N = 15 for both AAT and IL-23 in ALS group while in the controls n = 14 for AAT and n = 13 for IL-23 determinations. *p = 0.014, **p = 0.012; c Linear regression (Pearson test) of AAT and IL-23 in ALS patients. R = −0.544; p = 0.036