Cross section of healthy canine muscle tissue stained for dystrophin (red), nuclei located in the periphery can be seen stained with DAPI (blue). Dystrophin is a protein present in the sarcolemmal membrane that is required for healthy muscle growth and development. The lack of dystrophin can cause severe diseases such as Duchenne and Becker Muscular Dystrophy. The sample was processed by Sara Mata, a PhD Candidate from the Kornegay lab.