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Lipoprotein Metabolism in Hypertensive African-Americans

This study has been completed.
Sponsor:
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)
ClinicalTrials.gov Identifier:
NCT00005709
First received: May 25, 2000
Last updated: June 23, 2005
Last verified: June 2001
  Purpose

To study relationships among lipoprotein metabolism, hypertension, and hyperinsulinemia-insulin resistance in African American males and females. The study was part of a Collaborative Project on Minority Health which investigated the mechanisms by which insulin contributes to cardiovascular disease.


Condition
Cardiovascular Diseases
Heart Diseases
Hyperinsulinism
Hypertension
Insulin Resistance

Study Type: Observational

Resource links provided by NLM:


Further study details as provided by National Heart, Lung, and Blood Institute (NHLBI):

Study Start Date: September 1993
Estimated Study Completion Date: August 1998
Detailed Description:

BACKGROUND:

The study was part of the initiative "Collaborative Projects (R01s) on Minority Health". The concept for the initiative was developed by the NHLBI staff after the 1993 Report of the Committee on Appropriations, House of Representatives, encouraged the NHLBI to establish minority centers to facilitate the diagnosis and treatment of cardiovascular diseases. The initiative was approved at the September 1992 National Heart, Lung, and Blood Advisory Council and released in October 1992.

Julian Marsh was one of three investigators in a collaborative program with Bonita Falkner as Program Coordinator.

DESIGN NARRATIVE:

In a sub-set of subjects with either high or low plasma insulin levels after a glucose challenge (insulin sensitive or insulin resistant), the investigators determined the fractional and absolute synthesis and catabolic rates of apolipoproteins B and A-I, the dominant lipoproteins of Low Density Lipoprotein (LDL) and High Density Lipoprotein (HDL). They used stable isotopes and multicompartmental kinetic analysis following an oral bolus dose of deuteroleucine. They hypothesized that in hypertensive African Americans with hyperinsulinemia, more of the smaller Very Low Density (VLDL) particles are secreted and converted to LDL.

  Eligibility

Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   No
Criteria

No eligibility criteria

  Contacts and Locations
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No Contacts or Locations Provided
  More Information