|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
Extrapolating from limited clinical observations in screening studies, an estimated 40--70% of persons with the C282Y homozygous genotype will develop clinical evidence of iron overload.
|
11479183 |
2001 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
The description of two mutations in the HFE gene (Cys282Tyr and His63Asp) related to hereditary hemochromatosis provides an opportunity to address the question of the association between iron overload and atherosclerosis.
|
10719381 |
2000 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
The aim of the present study was to investigate the frequency of C282Y and H63D mutations and HCV infection in Brazilian patients with PCT and their relationship with iron overload.
|
11151887 |
2000 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
A primary care-based cohort of 20,306 participants (Hemochromatosis and Iron Overload Study, Ontario site) were tested for the C282Y and H63D mutations of the HFE gene and for abnormal serum ferritin (SF) and transferrin saturation levels.
|
22228247 |
2012 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
We propose that the phenotype of C282Y heterozygotes and homozygotes may be modified by heterozygosity for mutations which disrupt the function of hepcidin in iron homeostasis, with the severity of iron overload corresponding to the severity of the HAMP mutation.
|
12915468 |
2003 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
Co-inheritance of HFE mutations has a substantial role in iron overload in beta-thalassaemia carriers in north European populations where two HFE mutations, C282Y and H63D, are prevalent.
|
15182337 |
2004 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
A previously undescribed frameshift deletion mutation of HFE (c.del277; G93fs) associated with hemochromatosis and iron overload in a C282Y heterozygote.
|
15324319 |
2004 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
Untreated C282Y homozygous HH patients (n=20) with elevated serum ferritin (SF) and patients with physiological iron overload (n=12) with positive hepatocellular iron staining and negative HFE mutation analysis were evaluated.
|
17098454 |
2007 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
The aims of the study were to identify factors responsible for iron overload in patients who were only heterozygous for p.Cys282Tyr at first genetic testing.
|
20117027 |
2010 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
Hereditary Hemochromatosis (HH) is a recessively inherited disorder of iron overload occurring commonly in subjects homozygous for the C282Y mutation in HFE gene localized on chromosome 6p21.3 in linkage disequilibrium with the human leukocyte antigen (HLA)-A locus.
|
24282517 |
2013 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
The goal of this study was to perform a mutational analysis of the TfR2 and HFE genes in a cohort of non-C282Y iron overload patients of mixed ethnic backgrounds.
|
12130528 |
2002 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
Future studies to discover modifier genes that affect phenotypic expression in C282Y hemochromatosis should help identify patients who are at greatest risk of developing iron overload and who may benefit from continued monitoring of iron status to detect progressive iron loading.
|
20008199 |
2009 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
HFE testing for the two main mutations (p.Cys282Tyr and p.His63Asp) should be performed in all patients with primary iron overload and unexplained increased transferrin saturation and/or serum ferritin values.
|
22408404 |
2012 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
Reduced LDL in C282Y homozygotes may be because of effects of excess iron on cholesterol metabolism and lipoprotein formation in the liver.
|
18593631 |
2008 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
Five patients had no HFE mutations; one of these patients unequivocally has iron overload with a hepatic iron index of 4.4 We conclude that: (1) Identification of HFE mutations will be clinically useful in identifying patients with hereditary hemochromatosis, (2) Patient genotyping will help confirm a diagnosis of hereditary hemochromatosis in some patients with relatively low body iron stores, (3) Significant iron loading can occur in the absence of homozygous C282Y, adding to the evidence that genes other than HFE may be involved in iron loading, and (4) Homozygous H63D can be associated with significant iron overload.
|
9410475 |
1997 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
No HFE C282Y or H63D simple heterozygotes had documented iron overload (based on hepatic iron measures or serum ferritin greater than 1000 mg/L at baseline with documented therapeutic venesection).
|
25311314 |
2015 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
These findings suggest that Hfe has an effect in the shaping of T-cell populations either directly, as indicated by the lymphopenia seen in the two chains in C282Y heterozygous without iron overload, or indirectly by contributing to iron overload pathology.
|
11334672 |
2001 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
The analysis of HFE gene mutations (C282Y and H63D) is a simple and strong tool in the diagnostic work out of iron overload conditions.
|
9658731 |
1998 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
Clinical expression of hemochromatosis was assessed as a function of TLR4, TLR9, and NOD2 polymorphisms in 99 homozygous carriers of the HFE C282Y mutation with mild-to-severe iron overload.
|
19809335 |
2010 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
A high ratio (northern Italy) may indicate that phenotypic selection criteria were too loose and/or that causes of iron overload other than the Cys282Tyr mutation are frequent in the region.
|
12568299 |
2003 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
Although most adult patients with hereditary iron overload are homozygous for the C282Y mutation of the HFE gene, an increasing number with hereditary iron storage have an HFE genotype not characteristic of the disease.
|
16234038 |
2005 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
Homozygosity for the C282Y mutation of the HFE gene is the main cause of iron overload in hereditary haemochromatosis.
|
12790309 |
2003 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
A secondary cause for liver disease should be excluded among patients with suspected iron overload who are not C282Y homozygotes.
|
31335359 |
2019 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
Only 9/129 (7%) individuals with the genotypes C282Y/H63D or H63D/H63D had a SF > or =300 microG/L; many had explanations other than iron overload that accounted for this increase.
|
12482402 |
2003 |
|
Iron Overload
|
|
0.100 |
GeneticVariation
|
BEFREE |
A total of 161 non-C282Y-homozygous patients with unexplained hepatic iron overload were included.
|
10535879 |
1999 |