GUCA2B and neoplasm: The six proteins were significantly different between the tumor-resected group and the tumor-bearing group at both Day 7 and Day 30, including vascular cell adhesion protein 1, basement membrane-specific heparan sulfate proteoglycan core protein, resistin-like alpha, guanylate cyclase activator 2B, lymphocyte antigen 6C1, and alpha-amylase 1.