Consistent with previous studies, we found that there were higher concentrations of CD41a (7305/μL versus 4398/μL, p < 0.05) and CD31 (4978/μL versus 10036/μL, p < 0.05) positive MPs corresponding to platelet and endothelial cell in psoriasis patients as compared with controls (Figure 1). This evidence concerns the gene PECAM1 and psoriasis.