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| | Porphyria |
 | | Porphyria is a group of different disorders caused by abnormalities in the chemical steps leading to the production of heme, a substance that is important in the body. |
 | | The porphyrias are inherited conditions, and the genes for all enzymes in the heme pathway have been identified. |
 | | Porphyria can be triggered by drugs (barbiturates, tranquilizers, birth control pills, sedatives), chemicals, fasting, smoking, drinking alcohol, infections, emotional and physical stress, menstrual hormones, and exposure to the sun. |
| digestive.niddk.nih.gov /ddiseases/pubs/porphyria/index.htm (0 words) |
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