Most porphyrias are inherited conditions with either an autosomal dominant or autosomal recessive pattern of inheritance. Porphyria can also be caused by environmental factors such as infections or exposures to certain prescription drugs. This type of porphyria is called sporadic or acquired porphyria.
- Porphyria. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). February 26, 2014; http://www.niddk.nih.gov/health-information/health-topics/digestive-diseases/porphyria/Pages/facts.aspx. Accessed 5/26/2015.
- Porphyria. MedlinePlus. September 24, 2014; http://www.nlm.nih.gov/medlineplus/porphyria.html. Accessed 5/26/2015.
- Porphyria. Genetics Home Reference. July 2009; http://ghr.nlm.nih.gov/condition=porphyria. Accessed 5/26/2015.
- Genetics Home Reference (GHR) contains information on Porphyria. This website is maintained by the National Library of Medicine.
- MayoClinic.com provides information about porphyria. Click on the link to access this information.
- MedlinePlus was designed by the National Library of Medicine to help you research your health questions, and it provides more information about this topic.
- The National Digestive Diseases Information Clearinghouse (NDDIC), part of the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), offers information on this condition. Click on the link to view information on this topic.
- The National Human Genome Research Institute's (NHGRI) website has an information page on this topic. NHGRI is part of the National Institutes of Health and supports research on the structure and function of the human genome and its role in health and disease.
- The National Organization for Rare Disorders (NORD) has a report for patients and families about this condition. NORD is a patient advocacy organization for individuals with rare diseases and the organizations that serve them.
- Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
- The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
- The Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine.
- Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
- PubMed is a searchable database of medical literature and lists journal articles that discuss Porphyria. Click on the link to view a sample search on this topic.