National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Porphyria is not the name you expected.
Porphyria is a group of at least eight metabolic disorders that arise as a result of a malfunction in one of the eight steps in the body's synthesis of a complex molecule called heme. Heme is essential for the transport of oxygen to cells in the body. If any step in the synthesis of heme is blocked, an intermediate chemical accumulates in the cell, resulting in oxygen depletion. Those intermediate chemicals, known as porphyrins or porphyrin precursors, are the substances of which heme is composed.
There are two general categories of porphyrias, those that affect the skin and those that affect the nervous system. The former are called cutaneous porphyrias. The latter are called acute porphyrias. Because the symptoms of the various porphyrias may resemble symptoms of other disorders, diagnosis may be difficult.
Each type of porphyria represents a deficiency of a specific enzyme needed for the synthesis of heme. Treatment is specific to the type of porphyria. The porphyrias are inherited conditions, but don't all follow the same mode of inheritance.
American Porphyria Foundation
- 4900 Woodway, Suite 780
- Houston, TX 77056-1837
- Tel: (713)266-9617
- Fax: (713)840-9552
- Tel: (866)273-3635
- Email: email@example.com
- Website: http://www.porphyriafoundation.com
Belgian Association for Metabolic Diseases
- Floralaan 35A
- Beveren, 9120
- Tel: 03 775 48 39
- Fax: 03 775 48 39
- Email: firstname.lastname@example.org
- Website: http://www.boks.be/site/index.php/
Genetic and Rare Diseases (GARD) Information Center
- PO Box 8126
- Gaithersburg, MD 20898-8126
- Tel: (301)251-4925
- Fax: (301)251-4911
- Tel: (888)205-2311
- Website: http://rarediseases.info.nih.gov/GARD/
NIH/National Institute of Diabetes, Digestive & Kidney Diseases
- Office of Communications & Public Liaison
- Bldg 31, Rm 9A06
- Bethesda, MD 20892-2560
- Tel: (301)496-3583
- Email: NDDIC@info.niddk.nih.gov
- Website: http://www2.niddk.nih.gov/
For a Complete Report
This is an abstract of a report from the National Organization for Rare Disorders (NORD). For a full-text version of this report, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".
The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only.
It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report.
This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.
Last Updated: 7/17/2015
Copyright 2005 National Organization for Rare Disorders, Inc.
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