SLC30A8 and diabetes mellitus: Taking into consideration recent evidence for a protection against diabetes resulting out of a loss-of-function of ZnT8 (Dwivedi et al. 2019) and due to previously reported variations in dysglycaemia in mice deficient in ZnT8 (Rutter & Chimienti 2015, Rutter et al. 2016), we assessed short- and long-term glucose control in our mice deficient in ZnT8.