Clinical Trial: Lipoprotein Metabolism in Normal Volunteers and Patients With Abnormal Levels of Lipoproteins

Study Status: Completed
Recruit Status: Completed
Study Type: Observational

Official Title: Lipoprotein Metabolism in Normal Volunteers and Dyslipoproteinemic Patients (Stable Isotopes)

Brief Summary:

Researchers plan to study the fat-rich particles, called lipoproteins, which circulate in the blood. This study is designed to improve understanding of normal, as well as abnormal, lipoprotein metabolism and the role it plays in the development of hardening of the arteries (atherosclerosis).

Patients participating in this study will receive an intravenous (directly into the vein) injection of a small amount of specially prepared amino acids. The amino acids being injected are the same amino acids present in a normal diet. The amount of amino acid given will be less than the amount eaten in a protein-rich meal. The amino acids will be labeled with nonradioactive heavy isotopes which are also present in the environment n low amounts.

Patients participating in the study will be required to have blood samples taken, and provide urine samples throughout the course of the study. In addition, patient will be required to follow a specially formulated diet. Patients will be weighed throughout the course of the study.

Detailed Summary: Apolipoproteins regulate the metabolism of lipids and lipoproteins in plasma of humans. In order to investigate the roles of apolipoproteins in these processes, we plan to quantitate the kinetics of the metabolism of apolipoproteins utilizing nonradioactive isotope labeled amino-acids.
Sponsor: National Heart, Lung, and Blood Institute (NHLBI)

Current Primary Outcome:

Original Primary Outcome:

Current Secondary Outcome:

Original Secondary Outcome:

Information By: National Institutes of Health Clinical Center (CC)

Dates:
Date Received: November 3, 1999
Date Started: December 1987
Date Completion: March 2002
Last Updated: March 3, 2008
Last Verified: March 2002