# |
PMID |
Sentence |
1 |
1932755
|
Quantitation, performed by scintillation counting of 32P-dCTP incorporated into specific globin cDNA bands, showed ratios of alpha/beta-globin mRNA greater than 10-fold and greater than fivefold increased in patients with beta 0- and beta (+)-thal, respectively, as well as a relative increase in gamma-globin mRNA levels.
|
2 |
1932755
|
Conversely, patients with alpha-thalassemia showed a decreased ratio of alpha/beta-globin mRNA proportional to the number of alpha-globin genes deleted.
|
3 |
1990287
|
We show that expression in fibroblasts of a single cDNA, encoding the erythroid DNA-binding protein Eryf1 (GF-1, NF-E1), very efficiently activates transcription of a chicken alpha-globin promoter, trans-Activation in these cells occurred when Eryf1 bound to a single site within a minimal globin promoter.
|
4 |
2475189
|
Gene mapping of the zeta-alpha-globin gene cluster was performed in 12 newborns in whom cord blood zeta-globin chains had been determined.
|
5 |
6185291
|
In the reported case the levels for HbA1, measured by the colorimetric thiobarbiturate method, and the difference both between HbA2 (micro-column chromatography) as well as HbF values, corresponded to the blood sugar concentrations.
|
6 |
9207479
|
Hemoglobin A2 (HbA2), which contains delta-globin as its non-alpha-globin, represents a minor fraction of the Hb found in normal adults.
|
7 |
9207479
|
To elucidate the mechanisms responsible for the low-level expression of the delta-globin gene in adult erythroid cells, we first compared promoter sequences and found that the delta-globin gene differs from the beta-globin gene in the absence of an erythroid Krüppel-like factor (EKLF) binding site, the alteration of the CCAAT box to CCAAC, and the presence of a GATA-1 binding site.
|
8 |
9293854
|
Group 2 included patients with beta+/beta+ or beta+/beta0 genotype and one alpha-globin chain deletion and those with a moderate amount of beta-globin chain synthesis (beta++) and normal alpha-globin chain synthesis.
|
9 |
10228386
|
The diagnosis was made by DNA analyses of the nucleotide sequencing of the beta-globin gene for beta-thals and of the alpha-globin gene arrangement for alpha-thals. beta-Thals found in Japanese mainly involve a point mutation, such as-31CapA-->G(in ATA box) and beta 90 codon GAG-->TAG(creation of a stop codon).
|
10 |
11167015
|
Levels of GATA-1/GATA-2 transcription factors modulate expression of embryonic and fetal hemoglobins.
|
11 |
11167015
|
GATA-1 and GATA-2, coexpressed in erythroid cells, are important for expression of erythroid genes.
|
12 |
11167015
|
Conserved GATA sites were found in each of the hypersensitive sites in both beta-and alpha clusters and in proximal regulatory regions of the zeta-, epsilon- and gamma-globin but not the alpha, delta or beta-globin genes.
|
13 |
11167015
|
We then tested the effect of increasing levels of GATA-1 and GATA-2 on the expression of endogenous globin genes in human erythroid cells.
|
14 |
11167015
|
Increasing GATA-1 levels in K562 cells decreased the levels of epsilon-globin mRNA but had no effect on the levels of expression of gamma, zeta or alpha-globin genes.
|
15 |
11167015
|
Increasing GATA-2 levels increased epsilon-globin and gamma-globin transcripts.
|
16 |
11167015
|
Increasing levels of GATA-1 also caused a decrease in the expression of endogenous GATA-2, while increased levels of GATA-2 had no effect on GATA-1 mRNA.
|
17 |
11167015
|
Our results indicate a differential role of GATA-1 and -2 transcription factors on globin transcripts and suggest a correlation between the conservation of GATA sites in the regulatory regions and the ability of endogenous globin genes to respond to GATA transcription factors.
|
18 |
11167015
|
They also suggest that quantitative changes in the levels of GATA-1 or GATA-2 can result in alterations of globin target gene expression and may participate in the ontogenic control of the globin genes.
|
19 |
11283524
|
The number of alpha-globin genes present in the subjects was determined by the intensity of alpha1 and alpha2 bands normalized with that of beta-actin when using densitometry.
|
20 |
12038033
|
The most common beta globin gene defects were C-39 (30.7%); IVS-I nt 110 (20%); IVS-I nt 6 (13.3%); IVS-I nt 1(4%). alpha globin genes were normal in 42 patients, 1 patient had triplicate and cuadriplicate alpha globin genes and 2 patients were not analyzed.
|
21 |
22912363
|
The CAPILLARYS HbA(1c) kit used on the CAPILLARYS 2 Flex Piercing system is designed for separating and quantifying the HbA(1c) fraction of hemoglobin while detecting hemoglobin variants and HbA(2).
|
22 |
22912363
|
The reliability of the system for HbA(2) measurement was also assessed.
|
23 |
22912363
|
Moreover, the technique provides a rapid and reliable separation of HbA(2).
|
24 |
22912363
|
The CAPILLARYS HbA(1c) kit used on the CAPILLARYS 2 Flex Piercing system is designed for separating and quantifying the HbA(1c) fraction of hemoglobin while detecting hemoglobin variants and HbA(2).
|
25 |
22912363
|
The reliability of the system for HbA(2) measurement was also assessed.
|
26 |
22912363
|
Moreover, the technique provides a rapid and reliable separation of HbA(2).
|
27 |
22912363
|
The CAPILLARYS HbA(1c) kit used on the CAPILLARYS 2 Flex Piercing system is designed for separating and quantifying the HbA(1c) fraction of hemoglobin while detecting hemoglobin variants and HbA(2).
|
28 |
22912363
|
The reliability of the system for HbA(2) measurement was also assessed.
|
29 |
22912363
|
Moreover, the technique provides a rapid and reliable separation of HbA(2).
|
30 |
23861885
|
To bridge this gap, we developed an artificially engineered model for human beta thalassemia by knocking down beta-globin gene and protein expression in cultured CD34+ cells obtained from healthy adults.
|
31 |
23861885
|
Beta-globin mRNA was reduced by 90% compared to controls, while alpha-globin mRNA levels were maintained.
|
32 |
23861885
|
During the terminal phases of differentiation (culture days 14-21), beta-KD cells demonstrated increased levels of insoluble alpha-globin, as well as activated caspase-3.
|
33 |
23861885
|
To bridge this gap, we developed an artificially engineered model for human beta thalassemia by knocking down beta-globin gene and protein expression in cultured CD34+ cells obtained from healthy adults.
|
34 |
23861885
|
Beta-globin mRNA was reduced by 90% compared to controls, while alpha-globin mRNA levels were maintained.
|
35 |
23861885
|
During the terminal phases of differentiation (culture days 14-21), beta-KD cells demonstrated increased levels of insoluble alpha-globin, as well as activated caspase-3.
|