This disease comes in acute intermittent and cutanea tarda varieties.
A form of this disease common in South Africa is caused by a founder R59W mutation in PPOX; that is it's "variegate" type. A "pseudo" form of this disorder occurs in some people taking naproxen. One form of this disease is caused by mutations in HMB synthase and can be exacerbated by ingesting barbiturates; that form is characterized by polyneuropathy and causes attacks of port-wine-colored urine and abdominal pain treated with 10% glucose infusion. Another form of this disease is caused by mutations in UROD and causes blistering (*) and skin darkening. Beta-carotene can treat a form of this disease caused by a mutation in ferrocheletase. This disease comes in acute intermittent and cutanea tarda varieties. Many forms of this disease cause severe skin blistering in sunlight, and these diseases are caused by mutations in a pathway that starts with the synthesis of ALA. Supposed sufferers of one form of it include George III of England and Vlad the Impaler. For 10 points, name this disease whose sufferers are unable to synthesize heme, and which is the basis of vampire legends.
A form of this disease common in South Africa is caused by a founder R59W mutation in PPOX; that is it's "variegate" type.
porphyria