Ignite Creation Date:
2024-05-05 @ 11:33 AM
Last Modification Date:
2024-10-26 @ 9:09 AM
Study NCT ID:
NCT00074451
Status:
COMPLETED
Last Update Posted:
2019-02-11
First Post:
2003-12-12
Brief Title:
Genomewide Search for Loci Underlying Metabolic Syndrome
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:
2008-08
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 identify the genes involved in the metabolic syndrome
Detailed Description:
BACKGROUND
Metabolic syndrome characterized by clustering of multiple metabolic abnormalities including abdominal obesity dyslipidemia hyperinsulinemia hyperglycemia and hypertension is one of the most important risk factors for cardiovascular disease and stroke Genetics play a significant role in determining the individual susceptibility to metabolic syndrome and the inter-individual variation in its associated phenotypes though these genetic factors remain largely unknown The long-term goal is to identify the metabolic syndrome susceptibility genes and their functional variants
DESIGN NARRATIVE
The goal of the research is to study the underlying phenotypic structure of the metabolic syndrome and to systematically search for genetic loci predisposing to the metabolic syndrome using the genome scan approach The specific aims are 1 to screen about 10000 sibling pairs aged 40 to 64 years in Anqing Anhui China on intermediate phenotypes of the metabolic syndrome including body mass index waist and hip circumference serum lipid profiles triglyceride HDL- LDL- and total cholesterol fasting serum glucose and insulin level and blood pressure 2 to study the underlying phenotypic structure of the metabolic syndrome in the about 10000 ascertained sibling pairs using factor analysis 3 to select and genome scan 800 nuclear families from the pool of the ascertained sibling pairs using Weber screening set 10 markers Each selected nuclear family contains a proband and 3 other family members The values of the three most significant factors for metabolic syndrome in the factor analysis see specific aim 2 will be used to classify proband status for each subject A proband is defined as having 2 out of 3 factor values falling into the same side of the 1090 percentile tails of the corresponding age- and sex-adjusted population distributions 4 to test for linkage in the genome-scanned families on intermediate phenotypes and factors of metabolic syndrome using the Unified Haseman-Elston method In addition to the univariate test linkage analysis will be performed using a novel multivariate version of the Unified H-E method which has recently been proposed and shown to be significantly more powerful than the univariate test for traits with common genetic determinants 5 to perform expansion or replication linkage studies on loci identified in the genome scan in 300-400 additional families with 1 proband with a denser set of markers
Metabolic syndrome characterized by clustering of multiple metabolic abnormalities including abdominal obesity dyslipidemia hyperinsulinemia hyperglycemia and hypertension is one of the most important risk factors for cardiovascular disease and stroke Genetics play a significant role in determining the individual susceptibility to metabolic syndrome and the inter-individual variation in its associated phenotypes though these genetic factors remain largely unknown The long-term goal is to identify the metabolic syndrome susceptibility genes and their functional variants
DESIGN NARRATIVE
The goal of the research is to study the underlying phenotypic structure of the metabolic syndrome and to systematically search for genetic loci predisposing to the metabolic syndrome using the genome scan approach The specific aims are 1 to screen about 10000 sibling pairs aged 40 to 64 years in Anqing Anhui China on intermediate phenotypes of the metabolic syndrome including body mass index waist and hip circumference serum lipid profiles triglyceride HDL- LDL- and total cholesterol fasting serum glucose and insulin level and blood pressure 2 to study the underlying phenotypic structure of the metabolic syndrome in the about 10000 ascertained sibling pairs using factor analysis 3 to select and genome scan 800 nuclear families from the pool of the ascertained sibling pairs using Weber screening set 10 markers Each selected nuclear family contains a proband and 3 other family members The values of the three most significant factors for metabolic syndrome in the factor analysis see specific aim 2 will be used to classify proband status for each subject A proband is defined as having 2 out of 3 factor values falling into the same side of the 1090 percentile tails of the corresponding age- and sex-adjusted population distributions 4 to test for linkage in the genome-scanned families on intermediate phenotypes and factors of metabolic syndrome using the Unified Haseman-Elston method In addition to the univariate test linkage analysis will be performed using a novel multivariate version of the Unified H-E method which has recently been proposed and shown to be significantly more powerful than the univariate test for traits with common genetic determinants 5 to perform expansion or replication linkage studies on loci identified in the genome scan in 300-400 additional families with 1 proband with a denser set of markers
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None
Secondary IDs
| Secondary ID | Type | Domain | Link |
|---|---|---|---|
| R01HL073882 | NIH | None | httpsreporternihgovquickSearchR01HL073882 |