Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
1735 participants
OBSERVATIONAL
2001-09-30
2005-08-31
Brief Summary
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Detailed Description
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While the onset of symptomatic cardiovascular disease (CVD) typically occurs in middle age or later, the development of the underlying pathology is clearly a long-term process, and early-state lesions having been identified at autopsy even in children. Understanding the course of CVD risk development from childhood into middle age will clearly be valuable both in understanding the pathology of CVD and in targeting preventive measures most effectively. Furthermore, while genetic factors are agreed to play a significant role in the development of CVD, most genes contributing to interindividual variation in CVD risk will have relatively small effects on risk for any given individual, even though their aggregate effects contribute significantly to CVD risk in the overall population. Relatively little is known about the effects of genetic variants on the course of CVD risk factor development in individuals over time. The Bogalusa Heart Study (BHS), which began in 1973 as a study of CVD risk factors in children but evolved to cover the development of CVD risk factors from childhood into early middle age, offers an unparalleled resource for investigating the genetic factors influencing within-individual changes over time in quantitative factors, such as serum lipids and blood pressure, related to CVD risk.
DESIGN NARRATIVE:
Approximately 1500 individuals who were examined in the BHS on at least three separate occasions over a period of up to 20 years, and who consented to participate in studies of genetic factors influencing CVD risk, will have genotypes measured at selected loci either known or strongly suspected to affect interindividual variation in CVD risk. Longitudinal multilevel regression will be used to measure the effects of variation at these loci on quantitative CVD risk factor profiles within individuals and to determine whether some gene effects on CVD risk variation are age-dependent.
Conditions
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Study Design
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ECOLOGIC_OR_COMMUNITY
PROSPECTIVE
Study Groups
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BHS Whites
Whites from Bogalusa, Louisiana; initially recruited as schoolchildren and followed at irregular intervals (about 3 years apart on average) into adolescence and early adulthood. There were no interventions of any kind-- this was an observational study only.
Polymorphisms measured
BHS African Americans
African Americans from Bogalusa, Louisiana, initially recruited as schoolchildren and followed at irregular intervals (about 3 years apart on average) into adolescence and early adulthood. There were no interventions of any kind-- this was an observational study only.
Polymorphisms measured
Interventions
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Polymorphisms measured
Eligibility Criteria
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Inclusion Criteria
8 Years
38 Years
ALL
Yes
Sponsors
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National Heart, Lung, and Blood Institute (NHLBI)
NIH
The University of Texas Health Science Center, Houston
OTHER
Responsible Party
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Michael Hallman
Assistant Professor, Epidemiology and Disease Control
Principal Investigators
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David Hallman
Role: PRINCIPAL_INVESTIGATOR
The University of Texas Health Science Center, Houston
References
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Hallman DM, Srinivasan SR, Chen W, Boerwinkle E, Berenson GS. The beta(2)-adrenergic receptor Arg16-gly polymorphism and interactions involving beta(2)- and beta(3)-adrenergic receptor polymorphisms are associated with variations in longitudinal serum lipid profiles: the Bogalusa Heart Study. Metabolism. 2004 Sep;53(9):1184-91. doi: 10.1016/j.metabol.2004.03.019.
Other Identifiers
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1171
Identifier Type: -
Identifier Source: org_study_id