EN
TR
Beta globin mutations in beta thalassemia minor patients in Genetics Diagnosis Center of Trakya University Faculty of Medicine
Abstract
Aim: Beta thalassemia is an autosomal recessive genetic disorder caused by more than four hundred mutations in the beta globin (HBB-Hemoglobin Beta Locus) gene. 236 patients referred to our Genetic Disorders Diagnosis Center with beta thalassemia minor clinic to determine the frequency of HBB gene mutations in the Thrace Region.
Materials and Methods: Beta globin genetic analysis was performed by sanger sequence from peripheral blood samples obtained from all included cases.
Results: 98 heterozygous HBB gene mutations were detected in 97 (41.1%) patients. HBB gene mutations were IVS I.110 (G>A) (28.6%), Codon 39 (C>T) (18.4%), IVS1-1G>A, c.92+1 (G>A) (8.2%), IVS II.745 (C>G) (7.1%), IVS I.6 (T>C) (5.1%), Codon 8 (-AA), c.25.26.delAA (4.1%), Codon 44 (-C) (4.1%), Hb F Carlton (3.1%), Cd 5 [-CT], c.17.18delCT (3.1%), cd8/9+G, c.27_28insG, c.27dupG (3.1%), c.364 G>A, p.Glu122Lys (3.1%), c.-31 C>T (3.1%), CD6 –A, c.20delA (3.1%), c.*+111A>G (PolyA) (A>G) (2%), IVS-II-1 (G>A), c.315+1 G>A (1%), c.30.31insT, p.Ala11Cysfs (1%), CD26 G>A (Hb E), c.79 G>A (1%), CD15 G>A, c.48 G>A (1%). In our study, we found eighteen different HBB gene mutations in the Thrace region.
Conclusion: Our results are presenting that beta thalassemia trait is not frequent only in Aegean,
Mediterranean and Southeast Anatolia region in Turkey geography, but also frequent in the Thrace region
to the literature.
Keywords
References
- Tadmouri GO, Başak AN. β-thalassemia in Turkey; A review of the clinical epidemiological molecular and evolutionary aspects, Hemoglobin 2001; 25 (2): 227-39.
- Özkınay F, Onay H, Karaca E, Arslan E, Ertürk B, Ece Solmaz A, et al. Molecular Basis of β-Thalassemia in the Population of the Aegean Region of Turkey: Identification of A Novel Deletion Mutation. Hemoglobin. 2015; 39 (4): 230-4. doi: 10.3109/03630269.2015.1038354. Epub 2015 Jun 15.
- Galanello R, Origa R. Beta-thalassemia. Orphanet J Rare Diseases 2010; 5: 11
- Canatan D. Thalassemias and hemoglobinopathies in Turkey. Hemoglobin. 2014; 38: 305–7.
- Rund D, Rachmilewitz E. Pathophysiology of Alpha and Beta - thalassemia: Therapeutic implications. Sem Hematol, 2001; 38 (4): 343-9.
- Christianson A, Howson CP, Modell B. The hidden toll of dying and disabled children. March of Dimes Global Report on Birth Defects. March of Dimes Birth Defects Foundation, White Plains, NY, USA; 2006.
- Modell B, Darlison M. Global epidemiology of hemoglobin disorders and derived service indicators. Bull World Health Organ. 2008;86(6):480–7.
- Ansari SH, Shamsi TS. Thalassaemia Prevention Programme. Haematology Updates. 2010; 23–8.
Details
Primary Language
Turkish
Subjects
Health Care Administration
Journal Section
Research Article
Authors
Publication Date
December 30, 2019
Submission Date
July 16, 2018
Acceptance Date
September 7, 2018
Published in Issue
Year 1970 Volume: 58 Number: 4
Vancouver
1.Sinem Yalçıntepe. Trakya Üniversitesi Tıp Fakültesi Genetik Hastalıklar Tanı Merkezinde beta talasemi minor kliniği ile incelenen bireylerde görülen beta globin mutasyonları ve sıklığı. EJM. 2019 Dec. 1;58(4):330-5. doi:10.19161/etd.660966