Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to congenital hemidysplasia with ichthyosiform erythroderma and limb defects ?
    ### Response:
    Mutations in the NSDHL gene cause CHILD syndrome. This gene provides instructions for making an enzyme that is involved in the production of cholesterol. Cholesterol is a type of fat that is produced in the body and obtained from foods that come from animals, particularly egg yolks, meat, fish, and dairy products.
    