4.2 Review

The role of molecular diagnostic testing for hemoglobinopathies and thalassemias

Related references

Note: Only part of the references are listed.
Review Medicine, General & Internal

Next-Generation Sequencing (NGS) and Third-Generation Sequencing (TGS) for the Diagnosis of Thalassemia

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Summary: Thalassemia is a highly heterogeneous disease with over a thousand recorded mutation types worldwide. Conventional PCR-based DNA analysis for thalassemia diagnosis is time-consuming and resource-intensive due to phenotype variability, disease complexity, and test limitations. Advanced molecular techniques such as next-generation sequencing (NGS) and third-generation sequencing (TGS) offer more suitable and valuable options for DNA analysis of thalassemia. The continuous improvement of sequencing methods and bioinformatics tools, particularly for identifying copy number variations and homologous genes, will lead to more accurate thalassemia detection.

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Thalassaemia

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Summary: Thalassaemia is a genetic disorder that affects globin chain synthesis and has a worldwide distribution. The unbalanced production of globin chains leads to ineffective erythropoiesis, increased haemolysis, and disrupted iron homeostasis. The clinical phenotype varies from mild to severe, with treatment options including transfusion, iron chelation, allogeneic haematopoietic stem cell transplantation, and gene therapy.

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