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Journal ArticleDOI

Influence of BCL11A, HBS1L-MYB, HBBP1 single nucleotide polymorphisms and the HBG2 XmnI polymorphism on Hb F levels

TLDR
In search of genetic alterations responsible for high fetal hemoglobin (Hb F) phenotypes in the population of eastern India, 91 probands were screened for four polymorphisms by sequencing and/or restriction fragment length polymorphism (RFLP) analysis and the XmnI polymorphism showed the strongest association.
Abstract
In search of genetic alterations responsible for high fetal hemoglobin (Hb F) phenotypes in the population of eastern India, 91 probands were screened for four polymorphisms by sequencing and/or restriction fragment length polymorphism (RFLP) analysis. These are the A>G allele on the rs4895441 locus in the intergenic region between HBS1L and MYB on chromosome 6, the G>A allele on the rs4671393 locus on chromosome 2 (BCL11A gene), the A>C allele on the rs2071348 (HBBP1 gene) and the XmnI polymorphism (rs7482144, -158 position of HBG2) on chromosome 11. We found a significant association (p = 0.002 and 0.0013) of Hb F levels with rs2071348 and rs4895441, respectively. However, the polymorphism rs4671393 gene did not show significant association with Hb F levels (p = 0.0655). As is well known, the XmnI polymorphism (p <0.0001) showed the strongest association.

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Sequence and analysis of a whole genome from Kuwaiti population subgroup of Persian ancestry

TL;DR: The resource provides a starting point for designing large-scale genetic studies in Peninsula including Kuwait, and Persian population and positions the sequenced genome between Asian and European genomes in congruence with geographical location of the region.
Journal ArticleDOI

Decitabine improves outcomes in older patients with acute myeloid leukemia and higher blast counts.

TL;DR: Hypomethylating agents such 5-azacytidine (AZA) and decitabine (DAC) have been used as “lower-intensity” therapy in older patients with AML and may be associated with outcomes similar to intensive therapy.
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2SNP heritability and effects of genetic variants for neutrophil-to-lymphocyte and platelet-to-lymphocyte ratio

TL;DR: It is established that two important biomarkers have a significant heritable SNP component, and a new genome-wide significant locus is identified on the HBS1L-MYB intergenic region for PLR, which replicated in a sample of 2538 British twins.
Journal ArticleDOI

Variability of hemoglobin F expression in hemoglobin EE disease: hematological and molecular analysis.

TL;DR: Examining multiple single nucleotide polymorphisms in the β-globin gene cluster, BCL11A and HBS1L-MYB genes determined their associations with Hb F levels in Hb E disorder and demonstrated that multiple genetic modifying factors including T allele of (G)γ-XmnI polymorphism, G allele of HBS 1L- MYB, and C allele of BCL 11A are associated with increased HbF.
Journal ArticleDOI

Functional polymorphisms of BCL11A and HBS1L-MYB genes affect both fetal hemoglobin level and clinical outcomes in a cohort of children with sickle cell anemia

TL;DR: Patients carrying HbF-boosting alleles of BCL11A and HMIP-2 were associated with milder clinical phenotypes, and higher HBF concentration may underlie this effect.
References
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Journal ArticleDOI

cMYB is involved in the regulation of fetal hemoglobin production in adults

TL;DR: Observations suggest that differences in the intrinsic levels of cMYB may account for some of the variation in adult HbF levels, and the possible mechanism of c MYB influencing gamma- to beta-globin switching is discussed.
Journal Article

cMYB is involved in the regulation of fetal hemoglobin production in adults. Commentary

TL;DR: In this article, a quantitative trait locus (QTL) controlling HbF levels has been mapped to chromosome 6q23 in an Asian-Indian kindred with β thalassemia and heterocellular hereditary persistence of fetal hemoglobin (HPFH).
Journal ArticleDOI

Rapid detection of deletions causing delta beta thalassemia and hereditary persistence of fetal hemoglobin by enzymatic amplification

TL;DR: Sequence analysis of the breakpoint regions of the Chinese deletion and the Turkish rearrangement indicates that, in each case, the mutation is likely to have arisen from a single origin, supported by the evident geographical clustering of the various deletions described here.
Journal ArticleDOI

A 3-bp deletion in the HBS1L-MYB intergenic region on chromosome 6q23 is associated with HbF expression

TL;DR: By genome-wide association study, it is confirmed that HBS1L-MYB intergenic polymorphisms (HMIP) and BCL11A polymorphisms are highly associated with HbF in Chinese β-thalassemia heterozygotes and 3-bp deletion polymorphism is probably the most significant functional motif accounting for HMIP modulation of Hbf in all 3 populations.
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