Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to asphyxiating thoracic dystrophy ?
    ### Response:
    Mutations in at least 11 genes have been found to cause asphyxiating thoracic dystrophy. Genetic changes in the IFT80 gene were the first to be associated with this condition. Later, researchers discovered that mutations in another gene, DYNC2H1, account for up to half of all cases.
    