Ignite Creation Date:
2024-05-05 @ 11:29 AM
Last Modification Date:
2024-10-26 @ 9:08 AM
Study NCT ID:
NCT00059098
Status:
COMPLETED
Last Update Posted:
2016-07-12
First Post:
2003-04-17
Brief Title:
Identification of Genes Predisposing to Atherosclerosis
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:
2008-04
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 find genes important in the susceptibility to coronary heart disease
Detailed Description:
BACKGROUND
Coronary heart disease CHD is a complex disorder constituting a major health problem in Western societies The study assesses the unknown genetic background of CHD by investigating the most common familial dyslipidemia predisposing to CHD familial combined hyperlipidemia FCHL The population prevalence of FCHL is estimated to be 1-2 percent and the disorder affects 10-20 percent of families with premature CHD In FCHL serum cholesterol triglycerides or both are elevated Both environmental and genetic factors are suggested to affect the complex FCHL phenotype Since the molecular basis of FCHL is unknown a significant number of genetically predisposed individuals remain unidentified and exposed to premature CHD The study uses samples from the genetically isolated population of Finland
DESIGN NARRATIVE
The investigators will use the unique study samples from the genetically isolated population of Finland and apply molecular genetic tools to first restrict the genetic locus they have identified and then to characterize the causative gene underlying the FCHL disorder on chromosome 1q21 Specifically they first aim to further restrict the region by dissecting the different component traits They will genotype an extended study sample consisting of all available family members of 61 FCHL families with dense sets of microsatellite markers and single nucleotide polymorphisms to fully utilize the refined quantitative phenotype information in fine mapping Second they aim to build a transcript map over the critical region on 1q21-q23 and to identify the causative FCHL gene among the regional candidate genes This region on 1q21-q23 is orthologous to a region on mouse chromosome 3 where a locus Hyplip 1 for combined hyperlipidemia has been identified They have analyzed the human homolog of the Hyplip 1 gene but disappointingly the human Hyplip 1 gene was found 10 Mb from the peak linkage markers and no evidence emerged for Hyplip 1 as a causative gene for FCHL Their targets to identify the FCHL gene are currently the genes showing strongest association near the linkage peak The FCHL gene will then be functionally characterized to prove the biological dysfunction Characterizing one gene for FCHL would improve their understanding of molecular mechanisms of cardiovascular disease and potentially lead to more accurate diagnosis treatment and prevention
Coronary heart disease CHD is a complex disorder constituting a major health problem in Western societies The study assesses the unknown genetic background of CHD by investigating the most common familial dyslipidemia predisposing to CHD familial combined hyperlipidemia FCHL The population prevalence of FCHL is estimated to be 1-2 percent and the disorder affects 10-20 percent of families with premature CHD In FCHL serum cholesterol triglycerides or both are elevated Both environmental and genetic factors are suggested to affect the complex FCHL phenotype Since the molecular basis of FCHL is unknown a significant number of genetically predisposed individuals remain unidentified and exposed to premature CHD The study uses samples from the genetically isolated population of Finland
DESIGN NARRATIVE
The investigators will use the unique study samples from the genetically isolated population of Finland and apply molecular genetic tools to first restrict the genetic locus they have identified and then to characterize the causative gene underlying the FCHL disorder on chromosome 1q21 Specifically they first aim to further restrict the region by dissecting the different component traits They will genotype an extended study sample consisting of all available family members of 61 FCHL families with dense sets of microsatellite markers and single nucleotide polymorphisms to fully utilize the refined quantitative phenotype information in fine mapping Second they aim to build a transcript map over the critical region on 1q21-q23 and to identify the causative FCHL gene among the regional candidate genes This region on 1q21-q23 is orthologous to a region on mouse chromosome 3 where a locus Hyplip 1 for combined hyperlipidemia has been identified They have analyzed the human homolog of the Hyplip 1 gene but disappointingly the human Hyplip 1 gene was found 10 Mb from the peak linkage markers and no evidence emerged for Hyplip 1 as a causative gene for FCHL Their targets to identify the FCHL gene are currently the genes showing strongest association near the linkage peak The FCHL gene will then be functionally characterized to prove the biological dysfunction Characterizing one gene for FCHL would improve their understanding of molecular mechanisms of cardiovascular disease and potentially lead to more accurate diagnosis treatment and prevention
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 |
|---|---|---|---|
| R01HL070150 | NIH | None | httpsreporternihgovquickSearchR01HL070150 |