SLC9A3 and diabetes mellitus: Peijian He et al. concluded that NHE3 activity and fluid absorption in the intestinal tract of streptozotocin‐induced (STZ‐induced) diabetic mice were reduced, restoring Na+/H+ exchanger NHE3 could improve the fluid loss associated with type 1 diabetes mellitus (T1DM) diarrhoea.89