Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to idiopathic inflammatory myopathy ?
    ### Response:
    Idiopathic inflammatory myopathy is thought to arise from a combination of genetic and environmental factors. The term "idiopathic" indicates that the specific cause of the disorder is unknown.  Researchers have identified variations in several genes that may influence the risk of developing idiopathic inflammatory myopathy.
    