Fig. 3From: Do fragments and glycosylated isoforms of alpha-1-antitrypsin in CSF mirror spinal pathophysiological mechanisms in chronic peripheral neuropathic pain? An exploratory, discovery phase studyPain intensity vs PEDF spot 3308. Scatter plot of Visual Analogue Scale Pain Intensity (0–100 mm) last week (VASPI) vs. spot optical density (SOD) of pigment epithelium-derived factor (PEDF) spot 3308 in the cerebrospinal fluid of patients with peripheral neuropathic pain (n = 11). Spearman’s rho = 0.75, p = 0.008Back to article page