Porphyria - Wikipedia
Porphyria / pɔːrˈfɪriə / is a group of disorders in which substances called porphyrins build up in the body, adversely affecting the skin or nervous system. [1] . The types that affect the nervous system are also known as acute porphyria, as symptoms are …
Porphyria - Symptoms and causes - Mayo Clinic
2023年4月5日 · Porphyria (por-FEAR-e-uh) refers to a group of rare disorders that result from a buildup of natural chemicals called porphyrins in the body. Porphyrins are needed to make heme, a part of hemoglobin. Hemoglobin is a protein in red blood cells. It carries oxygen to the body's organs and tissues.
Porphyria: Symptoms, Diagnosis and Treatment - WebMD
2024年10月3日 · Porphyria is a group of inherited disorders caused by an abnormality in one of the steps your body uses to make heme. Heme is the protein in your red blood cells that makes them red and carries...
Porphyra - Wikipedia
Porphyra is a genus of coldwater seaweeds that grow in cold, shallow seawater. More specifically, it belongs to red algae phylum of laver species (from which comes laverbread), comprising approximately 70 species. [2] .
Porphyria: Types, Symptoms, and Treatment - Healthline
2020年7月13日 · Porphyrias are a group of rare inherited blood disorders. People with these disorders have problems making a substance called heme in their bodies. Heme is made of body chemicals called...
Overview of Porphyrias - Hormonal and Metabolic Disorders
Porphyrias are a group of disorders caused by deficiencies of enzymes involved in the production of heme. Heme is a chemical compound that contains iron and gives blood its red color. Heme is a key component of several important proteins in the body. One of those proteins is hemoglobin, which enables red blood cells to carry oxygen.
Porphyria cutanea tarda and hepatoerythropoietic porphyria ... - UpToDate
2023年6月2日 · The porphyrias are metabolic disorders caused by altered activity of enzymes in the heme biosynthetic pathway. Porphyria cutanea tarda (PCT; previously called symptomatic porphyria, chemical porphyria, toxic porphyria) is the most common type of porphyria.
About Porphyria - American Porphyria Foundation
Porphyria is not a single disease but a group of eight inherited genetic disorders that differ considerably from each other. A common feature in all Porphyrias is the accumulation in the body of porphyrins or porphyrin precursors. Although these are normal body chemicals, they normally do not accumulate.
Porphyria | New England Journal of Medicine
2017年8月31日 · The porphyrias are disorders of heme synthesis, which has eight steps (Figure 1). Each type of porphyria involves a defect, either inherited or acquired, in a pathway enzyme.
UpToDate
2024年8月5日 · The porphyrias are metabolic disorders caused by altered activities of the eight enzymes in the heme biosynthetic pathway. A distinct type of porphyria is associated with each enzyme. Although uncommon, porphyrias can be encountered by clinicians in any specialty.