Intergenerational Blood Pressure Study (InterGEN)

March 18, 2020 updated by: Yale University

Intergenerational Impact of Genetic and Psychological Factors on Blood Pressure

This project, the Intergenerational Blood Pressure Study, is a 5 year research study funded by the National Institutes of Health/National Institute of Nursing Research and led by the Yale University School of Nursing and The Consultation Center at the Yale University School of Medicine, Department of Psychiatry in partnership with Head Start programs across CT. The investigators seek to reduce hypertension health disparities among underserved Black/African American children and their mothers by conducting community-based research to better understand the genetic, psychological, and environmental factors that may contribute to high blood pressure.

Study Overview

Status

Completed

Conditions

Detailed Description

This study will examine: (1) the impact of (GXE) genetic and psychological environmental factors (discrimination, depression, and parenting behaviors) on the health of African American (AA) children aged 3 through 5 years and (2) the GXE risk for hypertension (HTN) in AA women and children. The overall goal of this project is to delineate the psychobiological (GXE interaction) mechanisms through which AA mothers' perceived racial discrimination, mental health, and parenting behavior affect their own and their young children's blood pressure (BP) over time. The research will examine both genetic (candidate gene and epigenetic effects) and psychological (maternal perceived racial discrimination, mental health, and parenting behavior) interaction effects on BP on this population. The investigators will employ a psychobiological approach by: utilizing psychological and biological assessments using a longitudinal cohort research design, a 2-step candidate gene and epigenetic methodology, and use of ancestry informative markers to account for population stratification admixture to explore GXE interactions on BP in AA mothers and children. Data analysis for the study will be conducted using multiple mixed modeling, cross-validation, and false discovery rate methods. The investigators will enroll 250 AA children aged 3 through 5 years and their (n=250) mothers/maternal caregivers. The investigators will assess mother and child factors every six months for 2 years. The investigators propose the following: Aim 1: Examine the GXE interaction and epigenetic effects of mothers' perceived racial discrimination and its influence on BP over a period of two years. Aim 2: Examine the GXE interaction and epigenetic effects of mothers' mental health status [symptoms of depression] and its influence on BP over a period of two years. Aim 3: Examine the GXE interaction and epigenetic effects of mothers' parenting behavior and its influence on BP over a period of two years. This project supports the National Institute of Nursing Research mission "to promote and improve the health of individuals, families, communities, and populations" by conducting basic research on the health and illness of women and young children. The proposed research extends nursing science by integrating the biological (genetics) and behavioral (psychology) components that can inform the combination of multi-level factors that contribute to AAs having the highest incidence of HTN in the US. Findings from this project can contribute to developing interventions that address genetic and psychological factors to reduce these risks for HTN.

Study Type

Observational

Enrollment (Actual)

500

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Connecticut
      • Orange, Connecticut, United States, 06477
        • Yale University School of Nursing

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

3 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Black/African American women and their 3-5 year old children in CT

Description

Inclusion Criteria:

Mothers must:

  • Self-identify as Black/African American
  • Be 21 years or older
  • Have a 3-5 year old biological child
  • Not be impaired by a though disorder, psychosis, or mania
  • Confirm that their child will be able to provide saliva sample for DNA
  • Be English-speaking

Exclusion Criteria:

  • None

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Black/African American Women and their 3-5 year old children

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Blood Pressure
Time Frame: 18 months
Manual blood pressure taken according to JNC-7 guidelines, average of 3 resting blood pressure measurements
18 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Yale University

Collaborators

National Institute of Nursing Research (NINR)
Emory University

Investigators

  • Principal Investigator: Jacquelyn Y Taylor, PhD, Yale University
  • Principal Investigator: Cindy A Crusto, PhD, Yale University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 1, 2015

Primary Completion (Actual)

June 1, 2019

Study Completion (Actual)

March 1, 2020

Study Registration Dates

First Submitted

January 5, 2017

First Submitted That Met QC Criteria

January 5, 2017

First Posted (Estimate)

January 6, 2017

Study Record Updates

Last Update Posted (Actual)

March 20, 2020

Last Update Submitted That Met QC Criteria

March 18, 2020

Last Verified

March 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1311012986
  • 5R01NR013520 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

Genomic Data Sharing Plan in place, in accordance with NIH regulations Only de-identified genomic data will be shared with dbGaP, to which other researchers will be able to apply for access. Data will be submitted within 1 year after analyses are complete.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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