Russell-Silver syndrome
|
0.100 |
Biomarker
|
disease |
BEFREE |
We report deletions close to the boundaries of ICR1 on the paternal allele in one familial and two sporadic cases of SRS with ICR1 hypomethylation.
|
27701793 |
2017 |
Russell-Silver syndrome
|
0.100 |
Biomarker
|
disease |
BEFREE |
First report on concordant monozygotic twins with Silver-Russell syndrome and ICR1 hypomethylation.
|
26691664 |
2016 |
Russell-Silver syndrome
|
0.100 |
Biomarker
|
disease |
BEFREE |
The hypomethylation does not spread equally throughout the IGF2/ICR1/H19 locus, and some loci could have normal MI, which may lead to underdiagnosis of patients with RSS with ICR1 hypomethylation.
|
25395389 |
2015 |
Russell-Silver syndrome
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Forty-six Likely-SRS patients (76.7%) displayed either 11p15 ICR1 hypomethylation (n=35; 58.3%) or maternal UPD of chromosome 7 (mUPD7) (n=11; 18.3%).
|
25951829 |
2015 |
Russell-Silver syndrome
|
0.100 |
Biomarker
|
disease |
BEFREE |
We previously identified a subset of RSS patients with 11p15 ICR1 and multilocus hypomethylation.
|
25044976 |
2014 |
Russell-Silver syndrome
|
0.100 |
PosttranslationalModification
|
disease |
BEFREE |
ICR1 methylation defects cause abnormal expression of imprinted genes, leading to Beckwith-Wiedemann syndrome (BWS) or Silver-Russell syndrome (SRS).
|
24299031 |
2014 |
Russell-Silver syndrome
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
We suggest that the occurrence of CHD in SRS with 11p15 ICR1 hypomethylation is not coincidental, but specific to this genotype.
|
23401077 |
2013 |
Russell-Silver syndrome
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
To the best of our knowledge, this is the first report of a patient with maternally inherited trans-duplication of the entire imprinting control region 1 (ICR1) among the 11p15.5 duplications reported in SRS patients.
|
23225375 |
2013 |
Russell-Silver syndrome
|
0.100 |
PosttranslationalModification
|
disease |
BEFREE |
DNA methylation defects involving ICR1 result in two growth disorders with opposite phenotypes: an overgrowth disorder, the Beckwith-Wiedemann syndrome (maternal ICR1 hypermethylation in 10% of BWS cases) and a growth retardation disorder, the Silver-Russell syndrome (paternal ICR1 loss of methylation in 60% of SRS cases).
|
21863054 |
2012 |
Russell-Silver syndrome
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
For this purpose, 18 children with SRS (11 with ICR1 hypomethylation) and 9 children small for gestational age (SGA), serving as controls, were recruited.
|
22248018 |
2012 |
Russell-Silver syndrome
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Fibroblast cultures from one patient with SRS due to ICR1 demethylation and controls were established.
|
22170793 |
2012 |
Russell-Silver syndrome
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
A loss of DNA methylation (LOM) at ICR1 is identified in over 50% of patients with Russell-Silver syndrome (RSS), characterized by intrauterine and postnatal growth retardation, spared cranial growth, frequent body asymmetry and severe feeding difficulties.
|
23182821 |
2012 |
Russell-Silver syndrome
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Severe hypomethylation of the H19 imprinted control region (ICR1) in two patients with Silver-Russell syndrome (SRS) who have genital malformations has encouraged us to study DNA methylation in a cohort of 83 patients with Müllerian aplasia (MA).
|
21458801 |
2011 |
Russell-Silver syndrome
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Most frequently, SRS is caused by altered gene expression on chromosome 11p15 due to hypomethylation of the telomeric imprinting center (ICR1) that is present in at least 40% of the patients.
|
21910219 |
2011 |
Russell-Silver syndrome
|
0.100 |
Biomarker
|
disease |
BEFREE |
Patients with ICR1 hypomethylation are more likely to have classical features of SRS, including asymmetry; patients with mUPD7 are more likely to have learning difficulties, particularly speech problems, although these are usually mild.
|
21349887 |
2011 |
Russell-Silver syndrome
|
0.100 |
PosttranslationalModification
|
disease |
BEFREE |
A promoter element of IGF2, IGF2P0, is differentially methylated equivalently to the H19-ICR, though in a small number of SRS cases this association is disrupted--that is, hypomethylation affects either H19-ICR or IGF2P0.
|
21278389 |
2011 |
Russell-Silver syndrome
|
0.100 |
PosttranslationalModification
|
disease |
BEFREE |
DNA methylation defects involving the ICR1 H19/IGF2 domain result in two growth disorders with opposite phenotypes: an overgrowth disorder, the Beckwith-Wiedemann syndrome (maternal ICR1 gain of methylation in 10% of BWS cases) and a growth retardation disorder, the Silver-Russell syndrome (paternal ICR1 loss of methylation in 60% of SRS cases).
|
20007505 |
2010 |
Russell-Silver syndrome
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
To further characterize the role of epimutations in RSS we evaluated the methylation status at both 11p15.5 imprinting control regions (ICRs): ICR1 associated with H19/IGF2 expression and ICR2 (KvDMR1) associated with CDKN1C expression in a series of 35 patients with RSS.
|
20082469 |
2010 |
Russell-Silver syndrome
|
0.100 |
PosttranslationalModification
|
disease |
BEFREE |
Thus we assume that genomic mutations of MBD3 are not relevant for the aetiology of the ICR1 hypomethylation and therefore for SRS.
|
20004753 |
2010 |
Russell-Silver syndrome
|
0.100 |
Biomarker
|
disease |
BEFREE |
ICR1 hypomethylation was more likely to be scored as 'classical' SRS.
|
20685669 |
2010 |
Russell-Silver syndrome
|
0.100 |
Biomarker
|
disease |
BEFREE |
Loss of DNA methylation at the telomeric imprinting control region 1 (ICR1) on 11p15 is an important cause of SRS.
|
19066168 |
2009 |
Russell-Silver syndrome
|
0.100 |
Biomarker
|
disease |
BEFREE |
H19 ICR hypomethylation was found in 62% of SRS patients but in no SGA children.
|
19017756 |
2009 |
Russell-Silver syndrome
|
0.100 |
Biomarker
|
disease |
BEFREE |
We found that 9.5% of RSS and 24% of BWS patients showed multilocus LOM at regions other than ICR1 and ICR2 11p15, respectively.
|
19755383 |
2009 |
Russell-Silver syndrome
|
0.100 |
Biomarker
|
disease |
BEFREE |
In a previous study' we showed that the ICR1 epimutation is not present in growth retarded patients with dysmorphisms not typical for SRS, but its role in the development of isolated growth restriction needed to be further elucidated.
|
18404973 |
2008 |
Russell-Silver syndrome
|
0.100 |
Biomarker
|
disease |
BEFREE |
These results show that ICR1 hypomethylation occurs more often in SRS patients than as previously thought as well as in isolated hemihypoplasia.
|
18159214 |
2008 |