The exon-52-deleted mdx52 mouse is a critical model of Duchenne muscular dystrophy (DMD). as it features a deletion in a hotspot region of the DMD gene. frequently mutated in patients. Deletion of exon 52 impedes expression of several brain dystrophins (Dp427. https://www.chiggate.com/nhl-hockey-2020-draft-puck-hot-on-sale/