Nowadays, two methods of detection of mutations of beta-globin gene are applied: amplification of refractory mutation system and reverse dot-blot-hybridization. The study was implemented to comparatively analyze effectiveness of these methods of molecular diagnostic in detection of thalassemic mutations in Azerbaijan. The examined sample consisted of 82 patients with both homozygous and heterozygous thalassemia and drepanothalassemia as well. In examined patients 146 mutant alleles were detected; 132 were thalassemic ones (16 various mutations) and 14 ranked among hemoglobinosis S (cod6(A>T)). The comparison of effectiveness of mentioned methods made it possible to conclude that both compared methods fit the diagnostic of thalassemic mutations. However the method of inverse dot-blot-hybridization has a number of advantages and is the best choice for Azerbaijan.
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Accumulation of free α-globin is a critical factor in the pathogenesis of β-thalassemia. Autophagy plays a crucial role in clearing toxic free α-globin, thereby reducing disease severity. However, the impact of natural mutations in autophagy-related genes (ATGs) on the phenotypic variability of β-thalassemia remains unclear.
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December 2024
Cyrus Tang Medical Institute, National Clinical Research Center for Hematologic Diseases, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu 215123, China.
Aging (Albany NY)
August 2024
School of Medicine, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China.
Thalassemia is the most common autosomal genetic disorder in humans. The pathogenesis of thalassemia is principally due to the deletion or mutation of globin genes that then leads to disorders in globin-chain synthesis, and its predominant clinical manifestations include chronic forms of hemolytic anemia. However, research on the epigenetics and underlying pathogenesis of thalassemia is in its nascency and not yet been systematically realized.
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June 2024
Laboratory Medicine Department, University Hospital of Tor Vergata, Viale Oxford, 1-00133 Rome, Italy.
Thalassemic diseases are characterized by a reduced (β) or absent (β) synthesis of the globin chains of hemoglobin (Hb) due to genetic mutations. β-thalassemia was more frequent in the Mediterranean area, but now it is diffused worldwide. Three possible genetic forms can be distinguished: β/β, the most severe (Cooley's disease); β/β of intermediate severity; β/β associated with β-thalassemia intermedia or minor.
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June 2024
Cellectis S.A., 8 Rue de la Croix Jarry, Paris, France.
Sickle cell disease is a devastating blood disorder that originates from a single point mutation in the HBB gene coding for hemoglobin. Here, we develop a GMP-compatible TALEN-mediated gene editing process enabling efficient HBB correction via a DNA repair template while minimizing risks associated with HBB inactivation. Comparing viral versus non-viral DNA repair template delivery in hematopoietic stem and progenitor cells in vitro, both strategies achieve comparable HBB correction and result in over 50% expression of normal adult hemoglobin in red blood cells without inducing β-thalassemic phenotype.
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