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Sponsored by: |
National Heart, Lung, and Blood Institute (NHLBI) |
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Information provided by: | National Heart, Lung, and Blood Institute (NHLBI) |
ClinicalTrials.gov Identifier: | NCT00005324 |
To identify genetic mechanisms controlling apolipoprotein levels and other 'non-traditional' risk factors in families ascertained through probands with premature coronary artery disease (CAD).
Condition |
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Cardiovascular Diseases Heart Diseases Coronary Disease |
Study Type: | Observational |
Study Design: | Natural History |
Study Start Date: | January 1992 |
Estimated Study Completion Date: | November 1996 |
BACKGROUND:
Preliminary work for this project was carried out as part of the Johns Hopkins Coronary Artery Disease study (R01-HL-34791) which provided extensive data on families ascertained through equal numbers of white male and female probands undergoing elective angiography.
DESIGN NARRATIVE:
The study, a subproject within an Arteriosclerosis SCOR, had three components. In Component 1, the group of 203 probands under study R01HL34791 was expanded with an additional 50 black patients undergoing angiography, meeting identical criteria. In Component 2, segregation analysis was carried out on lipoproteins, apolipoproteins, and selected non-traditional risk factors on families of all probands and the etiologic heterogeneity among different groups of families was tested. In Component 3, linkage was tested between putative Mendelian loci defined in Component 2 and markers in and around candidate loci involved in lipid metabolism. Preliminary results provided evidence of Mendelian control for apolipoprotein A1 and B, and the candidate loci examined included apo B, lipoprotein lipase, and the A1-CIII-A4 gene cluster. The major hypothesis was that these apolipoprotein levels and other non-traditional risk factors might be under genetic control. Genetic analysis of these risk factors was used to direct molecular studies to identify specific mutations.
Genders Eligible for Study: | Male |
Accepts Healthy Volunteers: | No |
No eligibility criteria
Study ID Numbers: | 4105 |
Study First Received: | May 25, 2000 |
Last Updated: | June 23, 2005 |
ClinicalTrials.gov Identifier: | NCT00005324 History of Changes |
Health Authority: | United States: Federal Government |
Arterial Occlusive Diseases Coronary Disease Heart Diseases Myocardial Ischemia |
Vascular Diseases Ischemia Arteriosclerosis Coronary Artery Disease |
Arterial Occlusive Diseases Coronary Disease Heart Diseases Myocardial Ischemia |
Vascular Diseases Cardiovascular Diseases Arteriosclerosis Coronary Artery Disease |