期刊
BLOOD
卷 114, 期 18, 页码 3935-3937出版社
AMER SOC HEMATOLOGY
DOI: 10.1182/blood-2009-04-217901
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资金
- National Institute on Aging (Baltimore, MD) [L.R.11 1990]
- PRIN [2006]
Sardinian beta-thalassemia patients all are homozygotes for the same null allele in the beta-globin gene, but the clinical manifestations are extremely variable in severity. Previous studies have shown that the coinheritance of alpha-thalassemia or the presence of genetic variants that sustain fetal hemoglobin production has a strong impact on ameliorating the clinical phenotype. Here we evaluate the contribution of variants in the BCL11A, and HBS1L-MYB genes, implicated in the regulation of fetal hemoglobin, and of alpha-thalassemia coinheritance in 50 thalassemia intermedia and 75 thalassemia major patients. We confirm that alpha-thalassemia and allele C of single nucleotide polymorphism rs11886868 in BCL11A were selectively represented in thalassemia intermedia patients. Moreover, allele G at single nucleotide polymorphism rs9389268 in the HBS1L-MYB locus was significantly more frequent in the thalassemia intermedia patients. This trio of genetic factors can account for 75% of the variation differences in phenotype severity. (Blood. 2009;114:3935-3937)
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