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The Effect of Five Single Nucleotide Polymorphisms on Hb F Variation of β-Thalassemia Traits and Hematologically Normal Individuals in Southeast Turkey
- Source :
- Hemoglobin. 44:231-239
- Publication Year :
- 2020
- Publisher :
- Informa UK Limited, 2020.
-
Abstract
- β-Thalassemia (β-thal) is caused by deficiency of β-globin chain synthesis and leads to the accumulation of unstable globin chain production. This results in a higher Hb F level in order to neutralize the excess α chains. In addition, γ-globin gene expression, due to genetic factors after birth, leads to increased Hb F levels in adulthood [hereditary persistence of fetal hemoglobin (Hb) (HPFH)]. In this study, the relationship between β-thal trait and individuals with suspected HPFH and a control group was investigated in Adıyaman, Turkey. Single nucleotide polymorphism (SNP) analyses were performed in five different polymorphic regions using real-time polymerase chain reaction (qPCR) methods [rs4671393 (GA), rs766432 (AC), rs9402686 (GA), rs28384513 (TG), rs1609812 (AG)]. No significant difference was found between the control and β-thal group in the codominant inheritance model in the rs1609812 (AG) polymorphism region only, while all the other polymorphic regions were found to be statistically significant. It was found that different genotype models increased Hb F levels between 1.6- and 3.06-fold in four studied polymorphic regions [rs4671393 (GA), rs766432 (AC), rs9402686 (GA), rs28384513 (TG)]. All of the polymorphic regions increased the Hb F levels from 1.86- to 24.76-fold, except rs9402686 (GA) and rs28384513 (TG) over dominant and rs1609812 (AG) codominant inheritance models. The AC and AA genotypes increased Hb F levels in the B-cell CLL/lymphoma 11 A haplotype studies. It was determined that both haplotypes 2 and 4 increased Hb F levels. As a result, SNPs strongly affect the Hb F levels in both healthy individuals and β-thal trait.
- Subjects :
- Adult
Erythrocyte Indices
Male
Thalassemia traits
Genotype
Turkey
Clinical Biochemistry
Inheritance Patterns
Single-nucleotide polymorphism
Biology
Polymorphism, Single Nucleotide
Young Adult
03 medical and health sciences
0302 clinical medicine
Gene Frequency
hemic and lymphatic diseases
Humans
Alleles
Fetal Hemoglobin
Genetics (clinical)
Genetics
beta-Thalassemia
Biochemistry (medical)
Haplotype
Hemoglobin A
Globin chain
Hematology
Middle Aged
Haplotypes
Case-Control Studies
Population Surveillance
030220 oncology & carcinogenesis
Female
Biomarkers
030215 immunology
Subjects
Details
- ISSN :
- 1532432X and 03630269
- Volume :
- 44
- Database :
- OpenAIRE
- Journal :
- Hemoglobin
- Accession number :
- edsair.doi.dedup.....b6c4543a1bfaab0885984e2cd682daf5