Diverse expression patterns of mucin 2 in colorectal cancer indicates its mechanism related to the intestinal mucosal barrier

Figure 4 Comparison between the levels of serum diamine oxide, D-lactate, and mucin 2 in colorectal cancer patients and normal controls. A: The level of serum diamine oxidase in colorectal cancer (CRC) patients and normal controls (NC); B: The level of serum D-lactate in CRC patients and NC; C: The level of serum mucin 2 in CRC patients and NC. The numbers at the bottom of the bar chart represent the mean, and the numbers above the error line represent the standard deviation. ^cP < 0.001. CRC: Colorectal cancer; NC: Normal controls; DAO: Diamine oxidase; D-LAC: D-lactate; MUC2: Mucin 2.