Volume 19, Issue 3 (7-2015)                   ibj 2015, 19(3): 177-182 | Back to browse issues page

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Motovali-Bashi M, Ghasemi T. Role of XmnIgG Polymorphism in Hydroxyurea Treatment and Fetal Hemoglobin Level at Isfahanian Intermediate β-Thalassemia Patients. ibj. 2015; 19 (3) :177-182
URL: http://ibj.pasteur.ac.ir/article-1-1352-en.html

Background: &beta-thalassemia is the most common monogenic disorder in human. The (CT) polymorphism at -158 upstream region of the &gammaG-globin gene and pharmacological factors such as hydroxyurea have been reported to influence &gamma-globin gene expression and the severity of clinical symptoms of &beta-thalassemia. Methods: In the present study, 51 &beta-thalassemia intermediate patients were studied. Xmn1&gammaG polymorphism genotype was determined using Tetra-Primer ARMS-PCR technique. Hemoglobin (Hb) and fetal hemoglobin (HbF) levels were determined by gel electrophoresis. Results: Of 51 patients, 35 (68.6%) patients were heterozygous (CT) and 16 (31.4%) patients were homozygous (CC). Of 30 patients under treatment by hydroxyurea, 20 (66.7%) patients were heterozygous (CT) and 10 (33.3%) patients were homozygous (CC). Our results demonstrated that in the heterozygous (CT) genotype, the Hb (9.58 ± 1.25 gm/dl) and HbF (89.30 ± 21.87) levels were significantly higher in comparison with homozygous (CC) genotype (7.94 ± 1.34 gm/dl and 70.32 ± 40.56, respectively). Furthermore, we observed that after drug usage, the Hb and HbF levels in patients with heterozygous (CT) genotype (0.7 ± 1.26 gm/dl and 5.95±14.8, respectively) raised more in comparison with homozygous (CC) genotype (0.26 ± 1.43 gm/dl and 0.8±1.31, respectively). Conclusion: Hb and HbF levels in the patients carrying T allele are increased significantly, and they also response to hydroxyurea treatment.

Type of Study: Full Length | Subject: Related Fields

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