Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to oculopharyngeal muscular dystrophy ?
    ### Response:
    Mutations in the PABPN1 gene cause oculopharyngeal muscular dystrophy. The PABPN1 gene provides instructions for making a protein that is active (expressed) throughout the body. In cells, the PABPN1 protein plays an important role in processing molecules called messenger RNAs (mRNAs), which serve as genetic blueprints for making proteins.
    