| Genome-wide linkage scan for exercise stroke volume and cardiac output in the HERITAGE Family Study. | |
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MedLine Citation:
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PMID: 12181362 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A genome-wide linkage scan was performed for genes affecting submaximal exercise cardiac output (Q) and stroke volume (SV) in the sedentary state and their responses to a standardized 20-wk endurance training program. A total of 509 polymorphic markers were used, and 328 pairs of siblings from 99 white nuclear families and 102 sibling pairs from 105 black family units were available. Q and SV were measured in relative steady state during exercise at 50 W (Q50 and SV50, respectively). Baseline phenotypes were adjusted for age, sex, and body surface area (BSA), and the training responses (post-training - baseline, Delta) were adjusted for age, sex, baseline BSA, and baseline value of the phenotype. Three analytical strategies were used: a multipoint variance components linkage analysis using all the family data, and regression-based single- and multipoint linkage analyses using pairs of siblings. In whites, baseline SV50 and DeltaSV50 showed promising linkages (P < 0.0023) with markers on chromosomes 14q31.1 and 10p11.2, respectively. Suggestive evidence of linkage (0.01 > P > 0.0023) for DeltaSV50 and Delta Q50 was detected on chromosome 2q31.1 and for baseline SV50 and Q50 on chromosome 9q32-q33. In blacks, markers on 18q11.2 showed promising linkages with baseline Q50. Suggestive evidence of linkage was found in three regions for baseline SV50 (1p21.3, 3q13.3, 12q13.2) and one for baseline SV50 and Q50 (10p14). All these chromosomal regions include several potential candidate genes and therefore warrant further studies in the HERITAGE cohort and other studies. |
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Authors:
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Tuomo Rankinen; Ping An; Louis Pérusse; Treva Rice; Yvon C Chagnon; Jacques Gagnon; Arthur S Leon; James S Skinner; Jack H Wilmore; D C Rao; Claude Bouchard |
Publication Detail:
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Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. Date: 2002-08-14 |
Journal Detail:
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Title: Physiological genomics Volume: 10 ISSN: 1531-2267 ISO Abbreviation: Physiol. Genomics Publication Date: 2002 Aug |
Date Detail:
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Created Date: 2002-08-15 Completed Date: 2002-09-03 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 9815683 Medline TA: Physiol Genomics Country: United States |
Other Details:
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Languages: eng Pagination: 57-62 Citation Subset: IM |
Affiliation:
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Pennington Biomedical Research Center, Human Genomics Laboratory, Baton Rouge, Louisiana 70808-4124, USA. rankint@pbrc.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult African Continental Ancestry Group / genetics Aged Aging Cardiac Output / genetics* Cohort Studies European Continental Ancestry Group / genetics Exercise* Female Genetic Markers Humans Linkage (Genetics) Male Middle Aged Physical Education and Training Physical Endurance Physical Exertion Stroke Volume / genetics* |
| Grant Support | |
ID/Acronym/Agency:
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1-P41-RR-03655/RR/NCRR NIH HHS; HL-45670/HL/NHLBI NIH HHS; HL-47317/HL/NHLBI NIH HHS; HL-47321/HL/NHLBI NIH HHS; HL-47323/HL/NHLBI NIH HHS; HL-47327/HL/NHLBI NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Genetic Markers |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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