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What is erythropoietic protoporphyria?

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What is erythropoietic protoporphyria?

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Erythropoietic protoporphyria (EPP) is one of a group of genetic diseases called the porphyrias. EPP is due to an inherited deficiency of the enzyme ferrochelatase. Reduced activity of this enzyme causes a build-up of the chemical protoporphyrin in the skin; resulting in photosensitivity i.e. the skin is damaged by light. Abnormally high levels of protoporphyrin can rarely cause liver disease.

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