Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes Neutral lipid storage disease with myopathy ?
    ### Response:
    What causes neutral lipid storage disease with myopathy? Neutral lipid storage disease with myopathy is caused by mutations in the PNPLA2 gene. This gene provides instructions for making an enzyme called adipose triglyceride lipase (ATGL). The ATGL enzyme plays a role in breaking down fats called triglycerides.
    