Porphyria (por-FEAR-e-uh) refers to a group of disorders that result from a buildup of natural chemicals that produce porphyrin in your body. Porphyrins are essential for the function of hemoglobin — a protein in your red blood cells that links to porphyrin, binds iron, and carries oxygen to your organs and tissues.
What is the meaning of the name porphyria?
Porphyria is named from the ancient Greek word porphura, meaning purple. The Greeks borrowed the term from the Phoenicians, who extracted a purple pigment from purpura mollusks to dye the garments of their royal family.
What are Coproporphyrins?
Coproporphyrin I is a porphyrin metabolite arising from heme synthesis. Porphyrins are natural chemicals in the body that help form many important substances in the body. One of these is hemoglobin, the protein in red blood cells that carries oxygen in the blood.
Is porphyria a mental illness?
Porphyria is important in psychiatry as it may present with only psychiatric symptoms; it may masquerade as a psychosis and the patient may be treated as a schizophrenic person for years; the only manifestation may be histrionic personality disorder which may not receive much attention.
What is the life expectancy of someone with porphyria?
Patients with porphyria generally have a normal life expectancy. However, those with acute hepatic porphyria are at increased risk of developing high blood pressure, chronic kidney disease, and hepatocellular carcinoma (liver cancer), which may reduce their lifespan.
What is the underlying cause of porphyria?
These disorders are usually inherited, meaning they are caused by gene mutations link passed from parents to children. If you have porphyria, cells fail to change chemicals in your body—called porphyrins and porphyrin precursors—into heme, the substance that gives blood its red color.
What does elevated Coproporphyrin III mean?
A great increase of coproporphyrin III excretion is unaccompanied by symptoms or signs of porphyria, metal or chemical poisoning or liver disease. If acute porphyria, which is often misdiagnosed, is suspected, please discuss further steps with your healthcare professional.
What is Coproporphyrin III?
Coproporphyrin III is a tetrapyrrole dead-end product from the spontaneous oxidation of the methylene bridges of coproporphynogen, arising from heme synthesis and secreted in feces and urine. Increased levels of coproporphyrins can indicate congenital erythropoietic porphyria or sideroblastic anaemia.
What is porphyrin ring?
A porphyrin is a large ring molecule consisting of 4 pyrroles, which are smaller rings made from 4 carbons and 1 nitrogen. These pyrrole molecules are connected together through a series of single and double bonds which forms the molecule into a large ring. The model of a general porphyrin is called porphin.
When should you suspect porphyria?
Therefore, it is currently recommended that patients undergo screening by liver imaging for early detection at least yearly after age 50, especially if porphobilinogen (PBG) remains elevated.
What triggers porphyria?
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. Attacks of porphyria can develop over hours or days and last for days or weeks.
What is the classification of coproporphyria?
This disease is grouped under: Summary Summary. Hereditary coproporphyria (HCP) is a rare inherited form of liver (hepatic) porphyria, characterized by neurological symptoms in the form of episodes (acute attacks) of stomach pain, nausea, vomiting, weakness, numbness, and pain in the hands and feet (neuropathy).
Is coproporphyria dominant or recessive?
Hereditary coproporphyria (HCP) is inherited in an autosomal dominant pattern. All individuals inherit two copies of each gene. In autosomal dominant conditions, having a mutation in just one copy of the CPOX gene causes the person to have HCP. The mutation can be inherited from either parent.
What is HCP (hereditary coproporphyria)?
Hereditary Coproporphyria (HCP) is a rare metabolic disorder characterized by deficiency of the enzyme coproporphyrinogen oxidase (CPOX). This enzyme deficiency results in the accumulation of toxic porphyrin precursors in the body.
What causes Coproporphyrinuria without porphyria?
This is a non-specific finding that is not necessarily due to an acute porphyria. Coproporphyrinuria can be caused by other stressors to the heme biosynthetic pathway, such as liver disease, lead poisoning and certain bone marrow disorders. There is no cure for HCP caused by the deficient activity of coproporphyrinogen oxidase.
