Below is an instruction from Human. Write a response.
    ### Instruction:
    Is porphyria inherited ?
    ### Response:
    Some types of porphyria are inherited in an autosomal dominant pattern, which means one copy of the gene in each cell is mutated. This single mutation is sufficient to reduce the activity of an enzyme needed for heme production, which increases the risk of developing signs and symptoms of porphyria.
    