Predictive Value of Coronary Heart Disease (CHD) Biomarkers for CHD Death (WHI)

The overall objective of this research proposal is to determine whether the predictive value of using plasma concentrations of selected nutrient biomarkers of food intake determined using a single plasma sample either alone or in combination are stronger, objective predictors of subsequent death from coronary heart disease (CHD) or myocardial infarct (MI) compared to selected food intake data derived from subjective, self-reported food frequency questionnaires.

Study Overview

• Status: Completed
• Conditions: Cardiovascular Disease

Detailed Description

The overall objective is to determine whether the predictive value of plasma concentrations of selected nutrient biomarker(s) of food intake determined using a single plasma sample either alone or in combination are stronger, objective predictors of subsequent death from CHD or MI compared to selected food intake data derived from subjective, self-reported food frequency questionnaires. The nutrient biomarkers (phospholipid [PL] eicosapentaenoic acid [EPA], PL docosahexaenoic acid [DHA], PL trans fatty acids, phylloquinone, dihydrophylloquinone) and foods (fish, dark fish and tuna, vegetables, fruits, and whole grains, and unsaturated fat rich foods) targeted have previously been either directly or indirectly associated with CVD risk. We propose to test our overall objective by conducting a nested case-control study using plasma samples and food frequency data from the observational cohort of the Women's Health Initiative (WHI). Our cases (n=1200) will be selected from the subset of women who did not report dietary supplement use and who died of CHD or MI (collectively referred to as WHI CHD cases). The control subjects (n=1200) will be selected from the subset that were free of CHD or MI events and matched with cases for standard National Cholesterol Education Program (NCEP) risk factors (WHI controls). Nutrient biomarker data will be newly generated using stored specimens whereas the selected food intake data have previously been collected by the WHI investigators.

• Study Type: Observational
• Enrollment (Actual): 2448

Contacts and Locations

Study Locations

• United States
  • Massachusetts
    • Boston, Massachusetts, United States, 02111
      • Tufts University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Female

• Sampling Method: Non-Probability Sample

Study Population

Womens' Health Initiative Observational Study

Description

Inclusion Criteria:

Cases, defined as women with centrally confirmed CHD and fatal or non-fatal myocardial infarction (MI).

Control subjects were matched on the basis of age, enrollment date, race/ethnicity and absence of CHD, MI, angina, coronary artery by-pass graft/ percutaneous transluminal coronary angioplasty, congestive heart failure, stroke or peripheral vascular disease at baseline.

Exclusion Criteria:

none

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
plasma markers of dietary intake	phospholipid fatty acid profiles	4 years

Secondary Outcome Measures

Outcome Measure	Time Frame
self-reported food frequency questionnaire data analysis	2 years
phylloquinone	4 years
dihydrophylloquinone	4 years
desaturase indexes	4 years
carotenoids	4 years

Collaborators and Investigators

• Sponsor: Tufts University
• Collaborators: Northwestern University; Fred Hutchinson Cancer Center
• Investigators: Principal Investigator: Alice H Lichtenstein, D.Sc., Tufts University

Publications and helpful links

General Publications

• Horn LV, Tian L, Neuhouser ML, Howard BV, Eaton CB, Snetselaar L, Matthan NR, Lichtenstein AH. Dietary patterns are associated with disease risk among participants in the Women's Health Initiative Observational Study. J Nutr. 2012 Feb;142(2):284-91. doi: 10.3945/jn.111.145375. Epub 2011 Dec 21.
• Matthan NR, Ooi EM, Van Horn L, Neuhouser ML, Woodman R, Lichtenstein AH. Plasma phospholipid fatty acid biomarkers of dietary fat quality and endogenous metabolism predict coronary heart disease risk: a nested case-control study within the Women's Health Initiative observational study. J Am Heart Assoc. 2014 Aug 13;3(4):e000764. doi: 10.1161/JAHA.113.000764.

Study record dates

Study Major Dates

• Study Start: January 1, 2007
• Primary Completion (Actual): October 1, 2010
• Study Completion (Actual): October 1, 2010

Study Registration Dates

• First Submitted: May 3, 2013
• First Submitted That Met QC Criteria: May 23, 2013
• First Posted (Estimate): May 29, 2013

Study Record Updates

• Last Update Posted (Actual): October 27, 2017
• Last Update Submitted That Met QC Criteria: October 26, 2017
• Last Verified: October 1, 2017

More Information

Terms related to this study

• Keywords: fatty acids; food frequency questionnaire; nutrient biomarkers; predictors of CVD; phylloquinone; dihydrophylloquinone
• Additional Relevant MeSH Terms: Cardiovascular Diseases
• Other Study ID Numbers: 8141