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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
1
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pubmed:dateCreated |
2009-9-21
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pubmed:abstractText |
There is emerging evidence that there are genetic modifiers of iron indices for HFE gene mutation carriers at risk of hereditary hemochromatosis. A random sample, stratified by HFE genotype, of 863 from a cohort of 31 192 people of northern European descent provided blood samples for genotyping of 476 single nucleotide polymorphisms (SNPs) in 44 genes involved in iron metabolism. Single SNP association testing, using linear regression models adjusted for sex, menopause and HFE genotype, was conducted for four continuously distributed outcomes: serum ferritin (log transformed), transferrin saturation, serum transferrin, and serum iron. The SNP rs884409 in CYBRD1 is a novel modifier specific to HFE C282Y homozygotes. Median unadjusted serum ferritin concentration decreased from 1194 microg/l (N = 27) to 387 microg/l (N = 16) for male C282Y homozygotes and from 357 microg/l (N = 42) to 69 microg/l (N = 12) for females, comparing those with no copies to those with one copy of rs884409. Functional testing of this CYBRD1 promoter polymorphism using a heterologous expression assay resulted in a 30% decrease in basal promoter activity relative to the common genotype (P = 0.004). This putative genetic modifier of iron overload expression accounts for 11% (95% CI 0.4%, 22.6%) of the variance in serum ferritin levels of C282Y homozygotes.
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pubmed:grant |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/CYBRD1 protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Cytochrome b Group,
http://linkedlifedata.com/resource/pubmed/chemical/Ferritins,
http://linkedlifedata.com/resource/pubmed/chemical/HFE protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Histocompatibility Antigens Class I,
http://linkedlifedata.com/resource/pubmed/chemical/Iron,
http://linkedlifedata.com/resource/pubmed/chemical/Membrane Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Oxidoreductases,
http://linkedlifedata.com/resource/pubmed/chemical/Transferrin
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
1365-2141
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pubmed:author |
pubmed-author:AllenKatrina JKJ,
pubmed-author:AndersonGreg JGJ,
pubmed-author:BahloMelanieM,
pubmed-author:BeckmanKenneth BKB,
pubmed-author:BertalliNadine ANA,
pubmed-author:ChenVictoriaV,
pubmed-author:ConstantineClare CCC,
pubmed-author:DelatyckiMartin BMB,
pubmed-author:EnglishDallas RDR,
pubmed-author:GertigDorota MDM,
pubmed-author:GilesGraham GGG,
pubmed-author:GurrinLyle CLC,
pubmed-author:HopperJohn LJL,
pubmed-author:MatakPavelP,
pubmed-author:McKieAndrew TAT,
pubmed-author:McLarenChristine ECE,
pubmed-author:OlynykJohn KJK,
pubmed-author:OsborneNicholas JNJ,
pubmed-author:SoutheyMelissa CMC,
pubmed-author:VulpeChris DCD,
pubmed-author:YeapHeng LinHL
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pubmed:issnType |
Electronic
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pubmed:volume |
147
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
140-9
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:19673882-Adult,
pubmed-meshheading:19673882-Aged,
pubmed-meshheading:19673882-Cytochrome b Group,
pubmed-meshheading:19673882-Female,
pubmed-meshheading:19673882-Ferritins,
pubmed-meshheading:19673882-Gene Frequency,
pubmed-meshheading:19673882-Genetic Predisposition to Disease,
pubmed-meshheading:19673882-Genotype,
pubmed-meshheading:19673882-Hemochromatosis,
pubmed-meshheading:19673882-Histocompatibility Antigens Class I,
pubmed-meshheading:19673882-Homozygote,
pubmed-meshheading:19673882-Humans,
pubmed-meshheading:19673882-Iron,
pubmed-meshheading:19673882-Male,
pubmed-meshheading:19673882-Membrane Proteins,
pubmed-meshheading:19673882-Middle Aged,
pubmed-meshheading:19673882-Oxidoreductases,
pubmed-meshheading:19673882-Polymorphism, Single Nucleotide,
pubmed-meshheading:19673882-Prospective Studies,
pubmed-meshheading:19673882-Transferrin
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pubmed:year |
2009
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pubmed:articleTitle |
A novel association between a SNP in CYBRD1 and serum ferritin levels in a cohort study of HFE hereditary haemochromatosis.
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pubmed:affiliation |
Centre for MEGA Epidemiology, School of Population Health, University of Melbourne, Carlton, Victoria, Australia.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Multicenter Study,
Research Support, N.I.H., Extramural
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