Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2003-4-25
pubmed:abstractText
Sarcoidosis, in the United States, more commonly and severely affects African Americans. HLA associations with sarcoidosis have been reported, but most studies used case-control designs, which may produce biased results because of population stratification. We examined transmission of HLA-DQB1 alleles in 225 African American families with at least one offspring with sarcoidosis. Of five low-resolution HLA-DQB1 alleles, *02 and *06 showed significant deviation in transmission patterns to affected offspring. High-resolution typing of these allelic subsets revealed that HLA-DQB1*0201 was transmitted to affected offspring half as often as expected (p = 0.001), whereas DQB1*0602 was transmitted to affected offspring about 20% more often than expected (p = 0.029). Examining interactions between *0201 and *0602 alleles and environmental exposures showed that *0602 varied little with respect to exposure, but sarcoidosis risk associated with *0201 often depended on exposure status. Alternatively, the *0602 allele in affected probands was associated with radiographic disease progression, but the *0201 allele showed no significant correlation with phenotype. Major differences in the amino acid sequences encoded by *0201 and *0602 alleles exist, which may explain the differential effects these alleles have on sarcoidosis susceptibility and progression in African Americans.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1073-449X
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
167
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1225-31
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:12615619-African Continental Ancestry Group, pubmed-meshheading:12615619-Alleles, pubmed-meshheading:12615619-Case-Control Studies, pubmed-meshheading:12615619-Disease Progression, pubmed-meshheading:12615619-Environmental Exposure, pubmed-meshheading:12615619-Gene Frequency, pubmed-meshheading:12615619-Genes, Dominant, pubmed-meshheading:12615619-Genetic Predisposition to Disease, pubmed-meshheading:12615619-Genetic Variation, pubmed-meshheading:12615619-Genotype, pubmed-meshheading:12615619-HLA-DQ Antigens, pubmed-meshheading:12615619-HLA-DQ beta-Chains, pubmed-meshheading:12615619-Humans, pubmed-meshheading:12615619-Immunity, Innate, pubmed-meshheading:12615619-Linkage Disequilibrium, pubmed-meshheading:12615619-Membrane Glycoproteins, pubmed-meshheading:12615619-Michigan, pubmed-meshheading:12615619-Models, Genetic, pubmed-meshheading:12615619-Pedigree, pubmed-meshheading:12615619-Phenotype, pubmed-meshheading:12615619-Sarcoidosis, Pulmonary, pubmed-meshheading:12615619-Severity of Illness Index
pubmed:year
2003
pubmed:articleTitle
Sarcoidosis susceptibility and resistance HLA-DQB1 alleles in African Americans.
pubmed:affiliation
Division of Pulmonary and Critical Care Medicine, Mount Sinai Medical Center, One Gustave Levy Place, Box 1232, NY, NY 10029, USA. michael.iannuzzi@mountsinai.org
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.