This might be due to the role of pro‐inflammatory cytokines (i.e. TNF‐α, IL‐6, IL‐23 and IL‐17) that can be found in the onset and pathogenesis of both AP and Psoriasis (Allihaibi et al., 2023; Furue et al., 2019; Ghoreschi et al., 2021; Lai & Dong, 2016; Nair, 2004; Wang & Jin, 2018). This evidence concerns the gene TNF and alkaline phosphatase measurement.