Ignite Creation Date:
2024-05-05 @ 11:35 AM
Last Modification Date:
2024-10-26 @ 9:10 AM
Study NCT ID:
NCT00083811
Status:
COMPLETED
Last Update Posted:
2016-08-08
First Post:
2004-06-02
Brief Title:
HYPGENE-Genetics Fitness Obesity Risk of Hypertension
Sponsor:
National Heart Lung and Blood Institute NHLBI
Organization:
National Heart Lung and Blood Institute NHLBI
Study Overview
Official Title:
None
Status:
COMPLETED
Status Verified Date:
2008-12
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
To investigate the role of genetics in cardiorespiratory fitness obesity and risk of hypertension
Detailed Description:
BACKGROUND
Hypertension is a multifactorial disease with genetic and environmental factors contributing to the disease process HYPGENE will investigate gene-fitness and gene-obesity interactions that relate to the development of hypertension during adulthood The study uses the cohort of the Aerobics Center Longitudinal Study ACLS at the Cooper Clinic
DESIGN NARRATIVE
The HYPGENE Study is a collaborative effort between the Pennington Biomedical Research Center the Cooper Institute and Washington University in St Louis The aim of the study is to investigate the contributions of DNA sequence variation in candidate genes as well as their interactions with cardiorespiratory fitness and obesity to the risk of hypertension in participants of the Aerobics Center Longitudinal Study ACLS In the first phase as of 120103 a group of 1000 subjects who were normotensive and free of cardiovascular disease and diabetes at the time of their first preventive medical examination from 011987 to 022001 will be selected from the ACLS cohort Half of these subjects n500 developed hypertension during the follow-up period duration 2 to 16 years whereas the other half remained normotensive In the second phase from 1203 to 1105 the sample size will be increased to 1500 subjects 750 cases and 750 controls Cases are defined as individuals who were normotensive at baseline but developed essential hypertension during follow-up Comparison individuals are those who also were normotensive at baseline and remained normotensive during follow-up The ascertainment of the case-control status will be done during the subjects return visits to the Cooper Clinic A panel of biallelic single nucleotide polymorphisms in candidate gene loci will be typed The candidate genes are selected based on their putative roles in the physiological pathways pertaining to the regulation of blood pressure by fitness and obesity or on evidence of linkages and associations in previous studies The candidates include endothelial factors contributing to vasodilation and vasoconstriction beta-adrenergic receptors and their kinases which mediate the effects of autonomic nervous system on cardiac function and vascular tone the renin angiotensin system and signaling molecules that mediate the effects of laminar shear stress on vascular wall enzyme activity and gene expression Logistic regression modeling and classification and regression trees methodology will be used to analyze the contribution of genotype fitness level and obesity as well as their interactions to the risk of hypertension The HYPGENE study will produce novel data on the effects of genetic factors in the presence of either high or low cardiorespiratory fitness level or obesity or normal body weight on the development of hypertension These data could ultimately lead to more efficient use of physical activity and body weight control in the primary and secondary prevention of hypertension
Hypertension is a multifactorial disease with genetic and environmental factors contributing to the disease process HYPGENE will investigate gene-fitness and gene-obesity interactions that relate to the development of hypertension during adulthood The study uses the cohort of the Aerobics Center Longitudinal Study ACLS at the Cooper Clinic
DESIGN NARRATIVE
The HYPGENE Study is a collaborative effort between the Pennington Biomedical Research Center the Cooper Institute and Washington University in St Louis The aim of the study is to investigate the contributions of DNA sequence variation in candidate genes as well as their interactions with cardiorespiratory fitness and obesity to the risk of hypertension in participants of the Aerobics Center Longitudinal Study ACLS In the first phase as of 120103 a group of 1000 subjects who were normotensive and free of cardiovascular disease and diabetes at the time of their first preventive medical examination from 011987 to 022001 will be selected from the ACLS cohort Half of these subjects n500 developed hypertension during the follow-up period duration 2 to 16 years whereas the other half remained normotensive In the second phase from 1203 to 1105 the sample size will be increased to 1500 subjects 750 cases and 750 controls Cases are defined as individuals who were normotensive at baseline but developed essential hypertension during follow-up Comparison individuals are those who also were normotensive at baseline and remained normotensive during follow-up The ascertainment of the case-control status will be done during the subjects return visits to the Cooper Clinic A panel of biallelic single nucleotide polymorphisms in candidate gene loci will be typed The candidate genes are selected based on their putative roles in the physiological pathways pertaining to the regulation of blood pressure by fitness and obesity or on evidence of linkages and associations in previous studies The candidates include endothelial factors contributing to vasodilation and vasoconstriction beta-adrenergic receptors and their kinases which mediate the effects of autonomic nervous system on cardiac function and vascular tone the renin angiotensin system and signaling molecules that mediate the effects of laminar shear stress on vascular wall enzyme activity and gene expression Logistic regression modeling and classification and regression trees methodology will be used to analyze the contribution of genotype fitness level and obesity as well as their interactions to the risk of hypertension The HYPGENE study will produce novel data on the effects of genetic factors in the presence of either high or low cardiorespiratory fitness level or obesity or normal body weight on the development of hypertension These data could ultimately lead to more efficient use of physical activity and body weight control in the primary and secondary prevention of hypertension
Study Oversight
Has Oversight DMC:
Is a FDA Regulated Drug?:
Is a FDA Regulated Device?:
Is an Unapproved Device?:
Is a PPSD?:
Is a US Export?:
Is an FDA AA801 Violation?:
Secondary IDs
| Secondary ID | Type | Domain | Link |
|---|---|---|---|
| R01HL069870 | NIH | None | httpsreporternihgovquickSearchR01HL069870 |