| 31. | Rarely, the signs and symptoms of variegate porphyria can begin in infancy or early childhood.
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| 32. | The activity of this enzyme is reduced by 50 percent in most people with variegate porphyria.
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| 33. | People who have these mutations are also at an increased risk of developing porphyria cutanea tarda.
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| 34. | More than 100 mutations that can cause variegate porphyria have been identified in the PPOX gene.
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| 35. | It is an extremely rare cause of porphyria, with less than 10 cases ever reported.
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| 36. | He orders that Tracy be treated for porphyria and that Jeremy's bowel be biopsied.
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| 37. | King George III was a man of very strong opinions even when not affected by porphyria.
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| 38. | If the diagnosis of hereditary porphyria is correct, it may have continued among descendants of Victoria.
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| 39. | It has a similar presentation to porphyria cutanea tarda ( PCT ), but with earlier onset.
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| 40. | Later in life, these individuals may present with photosensitivity similar to that found in cutaneous porphyrias.
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