Floderus Y, Shoolingin- 1 Jordan P, Harper P. Acute intermittent porphyria in Sweden. Molecular, functional and clinical consequences of some new mutations . Porphyria, Acute Intermittent. Porfyri, akut intermittent. Engelsk definition. An autosomal dominant porphyria that is due to a deficiency of. porphyria intermittent acute; AIP; pyrroloporphyria; AIP – acute intermittent . ruwiki Острая перемежающаяся порфирия; svwiki Akut intermittent porfyri; thwiki.

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It functions as a monomer localized within the cytoplasm where it catalyzes the synthesis of the linear tetrapyrrole hydroxymethlbilane from four molecules of porphobilinogen [ Anderson et al ]. The kaut and other disorders of porphyrin metabolism.

From observation to a modern algorithm-based system for the prediction of porphyrogenicity. If the level is high, the decision to go ahead with the pill should be reconsidered. Seizures may also occur as a manifestation of central nervous system involvement of the acute attack.

Testing of at-risk asymptomatic family members When the HMBS pathogenic variant has been identified in the family, molecular genetic testing is the method of choice for identification of individuals who have an HMBS pathogenic variant and are therefore at risk for an acute attack.

All these remarks apply only to the acute porphyrias.

Acute Intermittent Porphyria – GeneReviews® – NCBI Bookshelf

Five PBG-D gene mutations have been identified. Testing Strategy To confirm the diagnosis in a proband. The gene consists aktu 15 exons distributed over 10 kb that encode a ubiquitous HMBS isoform exons 1 and that is expressed in all tissues [ Puy et al ] and an erythroid isoform exons that is restricted to erythroid cells [ Grandchamp et al ]. AIP is inherited in an autosomal dominant manner. Clinical and biochemical characteristics and genotype-phenotype correlation in Finnish and Russian patients with acute intermittent porphyria.


Porphyria presenting with bilateral radial motor neuropathy: Testing is best performed on a random urine sample, protected from light porifri to analysis.

This product is supplied as a dried powder, which must be reconstituted with sterile water immediately before intravenous injection and administered over minutes. Most seizure medications exacerbate this condition. The clinical presentation of AIP is highly variable and non-specific. Side effects can be minimized by administering estrogen, preferably by patch.

If PBG levels increase progressively, the pill should be stopped.

Total urinary porphyrin, but ontermittant PBG, concentration may be increased in various disorders, including alcohol abuse and liver disease [ Badminton et al ]. Liver transplantation for porphyria: GeneReviews is not responsible for the information provided by other organizations. Any woman in this group who starts on the pill should have her urine tested for PBG at regular intervals for several months.

Tachycardia and hypertension are frequent, while fever, sweating, restlessness, and tremor are seen less frequently. Dubin—Johnson syndrome Rotor syndrome.

Testing of at-risk individuals younger than 18 years. The risk that an individual with latent AIP will later develop symptoms depends on age, sex, exposure to provoking agents, and other factors; however, the majority ajut remain asymptomatic throughout their lives.


The following section deals with genetic risk assessment and the use of family history and genetic testing to clarify genetic status for family members. See Genetic Counseling for issues related to testing of at-risk relatives for genetic counseling purposes.

Hematuria, ingestion of beetroot, some drugs and food additives, and porphyrin excretion interrmittant other porphyrias e. Prevalence In most countries AIP is the most common of the acute hepatic porphyrias [ Anderson et alPuy et al ].


The cause of hyponatremia is not clear; both SIADH porfiru of inappropriate antidiuretic hormone release and renal salt wasting have intrrmittant proposed as mechanisms. See information and contact details of specialist porphyria centers at porphyria. The most frequent presenting symptoms are abdominal pain and tachycardia. Liver transplantation for acute intermittent porphyria is complicated by a high rate of hepatic artery thrombosis.

Liver transplantation as a cure for acute intermittent porphyria. Fluid balance and electrolytes. Acute attacks, which may be provoked by certain drugs, alcoholic beverages, endocrine factors, calorie restriction, stress, and infections, usually resolve within two weeks.

AIP in Spain is also a heterogeneous disease and two novel mutations have been identified, one of them could be particularly prevalent in this area. It is there because it is known to provoke attacks of acute porphyria either alone or by interacting with other factors.

Although many have hypertension, others are normotensive despite renal insufficiency [ Andersson et al b ].

Porfyri, akut intermittent | Svensk MeSH

Demonstration that an increased PBG concentration is caused by AIP requires exclusion of other acute porphyrias by analysis of porphyrins in stool and plasma. Tests in GTR by Gene. All individuals with a genetic change in the gene HMBS that predisposes to AIP are at risk of developing acute attacks; however, most never have symptoms and are said to intermlttant latent or presymptomatic AIP.

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