SCN8A and epilepsy: SUDEP has also been seen in a number of mouse models of epilepsy, for example mice with a knock-in of the Q390X mutation in the Gabrg2 gene, which can suffer SUDEP at any stage15 and those with a heterozygous knock-in of N1768D in the Scn8a gene; these mice also exhibit seizures and SUDEP16.