Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to DMD-associated dilated cardiomyopathy ?
    ### Response:
    DMD-associated dilated cardiomyopathy results from mutations in the DMD gene. This gene provides instructions for making a protein called dystrophin, which helps stabilize and protect muscle fibers and may play a role in chemical signaling within cells. The mutations responsible for DMD-associated dilated cardiomyopathy preferentially affect the activity of dystrophin in cardiac muscle cells.
    