Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2001-11-7
pubmed:abstractText
A genome-wide linkage scan was performed to identify genomic regions that influence levels of dehydroepiandrosterone (DHEA), DHEA sulfate (DHEAS), and DHEA fatty acid esters (DHEA-FA) at baseline and in response to 20 weeks of endurance exercise training in sedentary white and black participants in the HERITAGE Family Study. The baseline levels were log-transformed and adjusted for the effects of age and sex prior to genetic analysis. The training responses were adjusted for the effects of age, sex, and the baseline values. A total of 509 autosomal component polymorphic markers were used for the genome scan with an average spacing of 6.0 Mb. Multipoint variance components linkage analyses were performed in nuclear families containing 360 white and 106 black sibling pairs. We found 5 genomic regions with significant linkages for baseline DHEA-FA in whites, with log odd (LOD) scores over 3.6 (P < 2 x 10(-5)). They include (1) D1S468 (LOD 4.56, 2.533 Mb, 1p36.22); (2) D2S177 (LOD 5.65, 52.663 Mb, 2p16.3); (3) D4S2397 (LOD 3.98, 32.246 Mb, 4p15.2); (4) the paraoxonase loci (LOD 3.93 approximately 3.99, 101.544 approximately 102.933 Mb, 7q21.3), and D7S821 (LOD 3.88, 104.497 Mb, 7q22.1); and (5) D12S372 (LOD 4.66, 2.129 Mb, 12q13.33). In addition, we obtained evidence of suggestive linkages (2.2 < LOD < 3.6; 2 x 10(-5) < P < 7 x 10(-4)) on chromosomes 3p, 6q, and 8q for baseline DHEAS; on chromosomes 2q, 3p, 9q, 10p, 16q, and 17p for baseline DHEA-FA in whites; and on chromosomes 9q and 11p for baseline DHEA in blacks. This is the first genome-wide linkage scan searching for genomic regions influencing human DHEA levels. Several potential candidate genes are located in these genomic regions, which warrant further studies in HERITAGE and other cohorts.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0026-0495
pubmed:author
pubmed:copyrightInfo
Copyright 2001 by W.B. Saunders Company
pubmed:issnType
Print
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1315-22
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:11699050-Adult, pubmed-meshheading:11699050-African Continental Ancestry Group, pubmed-meshheading:11699050-Age Factors, pubmed-meshheading:11699050-Chromosome Mapping, pubmed-meshheading:11699050-Chromosomes, Human, pubmed-meshheading:11699050-Cohort Studies, pubmed-meshheading:11699050-Dehydroepiandrosterone, pubmed-meshheading:11699050-Dehydroepiandrosterone Sulfate, pubmed-meshheading:11699050-European Continental Ancestry Group, pubmed-meshheading:11699050-Exercise, pubmed-meshheading:11699050-Family, pubmed-meshheading:11699050-Female, pubmed-meshheading:11699050-Genetic Linkage, pubmed-meshheading:11699050-Genetic Markers, pubmed-meshheading:11699050-Humans, pubmed-meshheading:11699050-Lod Score, pubmed-meshheading:11699050-Male, pubmed-meshheading:11699050-Middle Aged, pubmed-meshheading:11699050-Polymorphism, Restriction Fragment Length, pubmed-meshheading:11699050-Quantitative Trait, Heritable, pubmed-meshheading:11699050-Sex Factors
pubmed:year
2001
pubmed:articleTitle
Genome-wide linkage scan to detect loci influencing levels of dehydroepiandrosterones in the HERITAGE Family Study.
pubmed:affiliation
Division of Biostatistics, Washington University School of Medicine, St Louis, MO 63110, USA. anping@wubios.wustl.edu
pubmed:publicationType
Journal Article, Clinical Trial, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't