Document Detail


Classification and genetic features of neonatal haemochromatosis: a study of 27 affected pedigrees and molecular analysis of genes implicated in iron metabolism.
MedLine Citation:
PMID:  11546828     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Neonatal haemochromatosis (NH) is a severe and newly recognised syndrome of uncertain aetiology, characterised by congenital cirrhosis or fulminant hepatitis and widespread tissue iron deposition. NH occurs in the context of maternal disease including viral infection, as a complication of metabolic disease in the fetus, and sporadically or recurrently, without overt cause, in sibs. Although an underlying genetic basis for NH has been suspected, no test is available for predictive analysis in at risk pregnancies. As a first step towards an understanding of the putative genetic basis for neonatal haemochromatosis, we have conducted a systematic study of the mode of transmission of this disorder in a total of 40 infants born to 27 families. We have moreover carried out a molecular analysis of candidate genes (beta(2)-microglobulin, HFE, and haem oxygenases 1 and 2) implicated in iron metabolism. No pathogenic mutations in these genes were identified that segregate consistently with the disease phenotype in multiplex pedigrees. However, excluding four pedigrees with clear evidence of maternal infection associated with NH, a pedigree showing transmission of maternal antinuclear factor and ribonucleoprotein antibodies to the affected infants, and two families with possible matrilineal inheritance of disease in maternal half sibs, a large subgroup of the affected pedigrees point to the inheritance of an autosomal recessive trait. This included 14 pedigrees with affected and unaffected infants and a single pedigree where all four affected infants were the sole offspring of consanguineous but otherwise healthy parents. We thus report three distinct patterns of disease transmission in neonatal haemochromatosis. In the differentiation of a large subgroup showing transmission of disease in a manner suggesting autosomal recessive inheritance, we also provide the basis for further genome wide studies to define chromosomal determinants of iron storage disease in the newborn.
Authors:
A L Kelly; P W Lunt; F Rodrigues; P J Berry; D M Flynn; P J McKiernan; D A Kelly; G Mieli-Vergani; T M Cox
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of medical genetics     Volume:  38     ISSN:  1468-6244     ISO Abbreviation:  J. Med. Genet.     Publication Date:  2001 Sep 
Date Detail:
Created Date:  2001-09-07     Completed Date:  2002-01-10     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  2985087R     Medline TA:  J Med Genet     Country:  England    
Other Details:
Languages:  eng     Pagination:  599-610     Citation Subset:  IM    
Affiliation:
Department of Medicine, University of Cambridge, Level 5, Box 157, Addenbrooke's Hospital, Cambridge CB2 2QQ, UK.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Birth Order
Child
Child, Preschool
Consanguinity
Extrachromosomal Inheritance / genetics
Fatal Outcome
Female
HLA Antigens / genetics
Haplotypes / genetics
Heme Oxygenase (Decyclizing) / genetics
Heme Oxygenase-1
Hemochromatosis / congenital*,  genetics*,  metabolism,  physiopathology
Histocompatibility Antigens Class I / genetics
Humans
Infant
Infant, Newborn
Iron / metabolism*
Liver Failure / congenital*,  genetics*,  metabolism,  physiopathology
Male
Maternal-Fetal Exchange / immunology
Membrane Proteins*
Models, Genetic
Pedigree
Pregnancy
Pregnancy Complications, Infectious / immunology,  metabolism,  microbiology,  virology
beta 2-Microglobulin / genetics
Chemical
Reg. No./Substance:
0/HFE protein, human; 0/HLA Antigens; 0/HLA-F protein, human; 0/Histocompatibility Antigens Class I; 0/Membrane Proteins; 0/beta 2-Microglobulin; 7439-89-6/Iron; EC 1.14.99.3/HMOX1 protein, human; EC 1.14.99.3/Heme Oxygenase (Decyclizing); EC 1.14.99.3/Heme Oxygenase-1; EC 1.14.99.3/heme oxygenase-2
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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