GABRD and colorectal carcinoma: To further investigate the biological functions of GABRD in CRC, GO and KEGG functional enrichment analyses were performed on the differentially expressed genes according to the expression of GABRD. The results showed that GABRD was mainly enriched for protein digestion and absorption, ECM-receptor interaction, extracellular structure organization, extracellular matrix organization, pancreatic secretion, antimicrobial humoral response, and so on.