Porphyrias are a group of inherited disorders of heme biosynthesis classified as neurovisceral, cutaneous, or mixed. A deficiency of any of the 8 enzymes in the biosynthetic pathway can lead to a variety of clinical symptoms. Classification depends on the defective enzyme. Porphyrias often are misdiagnosed because patients have vague symptoms. However, acute forms of porphyria can be life-threatening, so it is important to make an accurate diagnosis and initiate proper medical management. We discuss the history, pathogenesis, clinical manifestations, diagnosis, and treatment of porphyrias and then briefly describe the 8 types of porphyrias and their distinguishing features.
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http://dx.doi.org/10.1309/8TGG-7CX1-4XCM-6N4L | DOI Listing |
Cureus
November 2024
Internal Medicine-Pediatrics, University of California Los Angeles, Los Angeles, USA.
Acute intermittent porphyria (AIP) is a rare inherited metabolic disorder caused by decreased activity of the enzyme porphobilinogen deaminase in the heme synthesis pathway. This leads to the accumulation of toxic porphyrin precursors, such as porphobilinogen and δ-aminolevulinic acid. Clinical manifestations typically include episodic bouts of severe neurovisceral pain and autonomic dysfunction.
View Article and Find Full Text PDFJ Eur Acad Dermatol Venereol
May 2024
Faculty of Medicine, UNSW Medicine, University of New South Wales, Sydney, New South Wales, Australia.
Hepatology
April 2024
Department of Medicine, Division of Digestive Health and Liver Diseases, University of Miami, Miami, Florida, USA.
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