Interestingly, ST6GAL1 has been previously associated with Type 2 diabetes [20], MGAT3 with Crohn's disease [21], primary biliary cirrhosis [22] and cardiac arrest [23], and FUT8 with multiple sclerosis, blood glutamate levels [24] and conduct disorder [25] (Table 2). Here, ST6GAL1 is linked to type 2 diabetes mellitus.