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Analyse moléculaire et diagnostic prénatal de la b-thalassémie: à propos de notre expérience en Tunisie centrale Volume 58, numéro 4, Juillet – Août Le terme thalassémie est un terme générique pour désigner un tableau clinique résultant d’une diminution quantitative de la synthèse d’une chaîne de globine. selenium, and copper in 64 children with B-thalassaemia major and 63 age- and zinc, sólénium et cuivre sériques chez 64 enfants atteints de B-thalassemie.

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Mutat Res ; Blood ; The major Mediterranean islands except the Balearics such as SicilySardinia tnalassemie, CorsicaCyprusMalta and Crete are heavily affected in particular. They have a very high obstetrical risk and a pluridiscplinary follow is necessary.

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Thalassemia – Wikipedia

It represents a potentially toxic iron form due to its high propensity to induce oxygen species and is responsible for cellular damage. The disorder affects all genders but is more prevalent in certain ethnicities and age groups.


A blood transfusion regimen was the first measure effective in prolonging life. The 5 Minute Pediatric Consult. It can be prevented if one parent has normal genes, giving rise to screenings that empower carriers to select partners with normal hemoglobin.

If it is unnecessary to remove the entire spleen a partial splenectomy may occur; this method preserves some of the immune function while reducing the probability of hypersplenism.

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Bêta-thalassémie majeure et grossesse. À propos de deux cas – EM|consulte

Of 10, patients, 1, patients had a hemoglobin phenotype and RDW consistent with beta thalassemia. The word thalassemia was first used in Human Genet ; The iron overload can be removed by Deferasirox, an oral iron chelator, which has a dose- dependent effect on iron burden.

Delineation of specific beta thalassemia mutations in high risk areas of Italy: Archived from the original on 26 August Transfusion-dependent patients develop iron overload and require chelation therapy [46] to remove the excess iron.

Retrieved 7 December Repeated blood transfusions can lead to build-up of iron overloadultimately resulting in iron toxicity. Patients may require episodic blood transfusions. The beta globin gene is located on chromosome Orphanet J Rare Dis.


From Wikipedia, the free encyclopedia. Iron overload is an unavoidable consequence of chronic transfusion therapy, necessary for patients with beta thalassemia.

Two gene loci and so four alleles exist. Occurs when both alleles have thalassemia mutations.

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Beta thalassemia

Untreated, it causes anemia, splenomegaly and severe bone deformities. Transmission is autosomal recessive ; however, dominant mutations and compound heterozygotes have been reported.

Absent a matching donor, a savior sibling can be conceived yhalassemie preimplantation genetic diagnosis PGD to be free of the disease as well as to match the recipient’s human leukocyte antigen HLA type. You may thus request that your data, should it be inaccurate, incomplete, unclear, outdated, not be used or stored, be corrected, clarified, updated or deleted.

DNA testing is not routine, but can help diagnose thalassemia and determine carrier status.