SLC5A2 and type 2 diabetes mellitus: Sodium-glucose co-transporter 2 (SGLT2) inhibitors are a new class of antidiabetes drugs, and dapagliflozin [1], canagliflozin [2], empagliflozin [3], ipragliflozin [4], tofogliflozin [5], luseogliflozin [6] have been approved for the treatment of Type 2 diabetes mellitus (T2DM).