COMPLETED

Human Cerebral Blood Flow Regulation

Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

This study tests basic differences in how men and women control brain (cerebral) blood flow (CBF), at rest and under stress. The stress is low oxygen or high carbon dioxide. The investigators hypothesize that sex differences per se, plus sex hormone differences, drive different signals in blood vessels that change the way CBF is regulated. The investigators will test these mechanisms with medicine infusions during stress, and measure CBF using state-of-the-art MRI approaches. Research confounding variables like aging and disease will be mitigated by comparing younger adults (18-40 years old).

Official Title

Human Cerebral Blood Flow Regulation: Sex, Mechanism, and Stress Differences

Quick Facts

Study Start:2021-04-12
Study Completion:2025-03-31
Study Type:Not specified
Phase:Not Applicable
Enrollment:Not specified
Status:COMPLETED

Study ID

NCT04265053

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.

Ages Eligible for Study:18 Years to 40 Years
Sexes Eligible for Study:ALL
Accepts Healthy Volunteers:Yes
Standard Ages:ADULT
Inclusion CriteriaExclusion Criteria
  1. * All participants will be healthy adults between 18-40 years old, matched for age and aerobic fitness
  2. * Participants will be non-hypertensive (\<125/80mm Hg)
  3. * Participants will be non-obese (BMI 19-25 kg/m2)
  4. * Participants will have normal blood glucose (\<100 g/dl)
  5. * Participants will have normal lipids (LDL cholesterol \<130 mg/dl, triglycerides \<150 mg/dl)
  6. * Women must have a natural regular menstrual cycle
  1. * Participants with a history of:
  2. * peripheral vascular disease
  3. * hepatic disease
  4. * renal disease
  5. * hematologic disease
  6. * stroke
  7. * obesity
  8. * prediabetes
  9. * diabetes
  10. * sleep apnea
  11. * Participants with current BP\>130/85 mmHg
  12. * Regular smokers
  13. * Taking cardiovascular medications
  14. * Women who take hormonal birth control
  15. * Women who are pregnant or have polycystic ovarian syndrome \[Hormonal birth control will not be allowed in women\]
  16. * Contradictions to MRI
  17. * Lactose intolerance

Contacts and Locations

Principal Investigator

William Schrage, PhD
PRINCIPAL_INVESTIGATOR
University of Wisconsin, Madison

Study Locations (Sites)

University of Wisconsin, Madison
Madison, Wisconsin, 53706
United States

Collaborators and Investigators

Sponsor: University of Wisconsin, Madison

  • William Schrage, PhD, PRINCIPAL_INVESTIGATOR, University of Wisconsin, Madison

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 Registration Dates

Study Start Date2021-04-12
Study Completion Date2025-03-31

Study Record Updates

Study Start Date2021-04-12
Study Completion Date2025-03-31

Terms related to this study

Additional Relevant MeSH Terms

  • Cerebral Arterial Diseases