Human Lipoprotein Pathophysiology - Subproject: Genetics of Familial

Status Completed

Clinical Trial Summary

To conduct focused studies of lipoprotein physiology and pathophysiology in genetically characterized patients with the objectives of understanding disease mechanisms, developing better treatments, and identifying and preventing early vascular disease.

Clinical Trial Description

BACKGROUND:

Premature vascular disease in young hyperlipidemic subjects remains a major unsolved health problem in terms of pathogenesis and treatment. Research advances have led to new markers for genetic analysis, new methods for studying lipoprotein metabolism and atherosclerotic disease progression and regression, and reference values for diagnosing hyperlipidemia.

DESIGN NARRATIVE:

Attention is focused on the molecular, genetic and pathophysiological basis of the inherited dyslipoproteinemias associated with premature coronary artery disease with particular reference to familial combined hyperlipidemia, familial moderate hypercholesterolemia, familial elevation of Lp(a) and the carrier state for homocysteinemia. Coordinated studies of characterization of the pathophysiological state, the identification of possible molecular biological defects and the evaluation of these results in families by statistical genetic techniques are performed in each disorder. The role of protein mediated intravascular modification of lipoproteins and the role of oxidation of lipoproteins in each disorder will lead to characterization of these genetic lipoprotein abnormalities. The study is a subproject within a program project grant.

The subproject on the genetics of familial combined hyperlipidemia (FCHL) was renewed in 1999 through 2010 to continue mapping the apoB elevating gene l(BEL) level using a genomic search in pedigrees with familial combined hyperlipidemia. The major focus of the genetic analyses are the 15 FCHL families under the BEL segregation analysis model in a power analysis. These families also show the most evidence for segregation at an apoB elevating gene locus. Genotyping for a 10 centimorgan genomic scan has been completed for these families. ;

Study Design

Observational Model: Family-Based

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00005313
Study type	Observational
Source	University of Washington
Contact
Status	Completed
Phase	N/A
Start date	April 2001
Completion date	March 2003

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Human Lipoprotein Pathophysiology - Subproject: Genetics of Familial Combined Hyperlipidemia

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms