In contrast, the average albumin, prealbumin, lymphocytes, and platelets of patients with PC were 38.52 ± 4.04 g/L, 215.17 ± 69.86 mg/L, 1.62 ± 0.62 × 109/L, 224.43 ± 69.06 × 109/L, respectively, which were significantly lower than those in the HC and OPT groups, with P values < 0.05. This evidence concerns the gene TTR and pachyonychia congenita.