Erythropoietic porphyria (EP) is a rare inborn error of porphyrin-heme synthesis inherited that is as an autosomal recessive trait. Congenital erythropoietic porphyria (CEP; OMIM #, also called Günther disease) is a rare, autosomal recessive porphyria. It results from. Gunther disease, also known as congenital erythropoietic porphyria (CEP), uroporphyrinogen III synthase deficiency and UROS deficiency, is a congenital form.
|Published (Last):||21 November 2004|
|PDF File Size:||10.29 Mb|
|ePub File Size:||2.92 Mb|
|Price:||Free* [*Free Regsitration Required]|
When the enzyme uroporphyrinogen III synthase is reacting normally it results in the making of isomer Erythroooietic porphyrinogen, erythropoieti is what is used to form heme. As CEP is a very rare condition, most general practitioners will have little experience of the condition. Cohgenital infected lesions can lead to scarring, bone loss, and deformities.
Clinical description The disease most often manifests at birth with extreme cutaneous photosensitivity that is severe and mutilating. Mice homozygous for all 3 mutations were fetal lethals, except for those homozygous for a spontaneous recombinant allele. Regulatory pathogenic variants are located in intron 1 upstream of the exon 2 ATG. In severely affected patients, anemia congfnital be present in the fetus.
Cabrol 9 December The proband ‘s maternal aunts may be at risk of being carriers and the aunts’ offspring, depending on their gender, may be at risk of being carriers or of being affected. How is CEP diagnosed? If an individual receives one normal gene and one gene for the disease, the person will be a carrier for the disease, and usually will not show symptoms.
Vitamin D supplementation is advised as affected individuals are predisposed to vitamin D insufficiency due to sun avoidance.
The risk is the same for males and females. This may result in damage to tissues of internal organs, just like the skin blistering after exposure to bright light.
It is realistic to anticipate significant progress with this research during the next decade. GlySer Pathogenic variants in the erythroid-specific promoter region c. Other ocular manifestations can include scleral necrosis, necrotizing scleritis, seborrheic blepharitis, keratoconjunctivitis, sclerokeratitis, and ectropion [ Oguz et alVenkatesh et alSiddique et al ].
Rare Disease Database
Herlitz JEB classic severe form: Presymptomatic diagnosis is warranted in relatives at risk for initiation of early intervention no phototherapy, strict sun protection and future monitoring for signs erytjropoietic hemolytic anemia. Rapid improvement in the chemical pathology of congenital erythropoietic porphyria with treatment with superactivated charcoal. The diagnosis can be made by testing the urine for increased levels of specific porphyrins.
After exposure to light, the photo-activated porphyrins in the skin cause bullae blistering and the fluid-filled sacs rupture, and the lesions often ccongenital infected. Testing for CEP in pregnancy is not offered routinely.
Congenital Erythropoietic Porphyria – NORD (National Organization for Rare Disorders)
CEP can affect males and females equally, and any ethnic group. Sun protection using protective clothing including long sleeves, gloves, and wide-brimmed hats. No phenotypes other than those discussed in this GeneReview are known to be associated with pathogenic variants in UROS. Therefore, the use of protective clothing, wrap-around sun glasses, protective window films, reddish incandescent bulbs, filtering screens for fluorescent lights, and opaque sunscreens containing zinc oxide or titanium oxide is recommended.
Bisphosphonates can be considered in individuals with osteoporosis [ Katugampola et al a ]. Photosensitivity is seen from birth; however, in some cases, it may not occur until childhood, adolescence or adulthood.
Presumably, the CEP-like manifestations resulted from genetic or functional changes associated with the bone marrow disorder. When there is a homozygous mutation it causes a uroporphyrinogen III synthase and uroporphyrinogen cosynthase defect.
It is estimated that about 1 in every 2 — 3 million people are affected by CEP.
Orphanet: Congenital erythropoietic porphyria
Please consider making a donation now and again in the future. CEP is extremely rare. Porphura actually means “purple pigment”, which, in suggestion, the color erythropoieti the body fluid changes when a person has Gunther’s disease. The content of the website and databases of the National Organization for Rare Disorders NORD is copyrighted and may not be reproduced, copied, downloaded or disseminated, in any way, for any commercial or public purpose, without prior written authorization and approval from NORD.
Specialised Social Services Eurordis directory.