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Effects of High Altitude on AMPK Activation

Description

Pregnancy elicits adaptive changes in uteroplacental blood flow, which are altered at high altitude and may contribute to the observed 3-fold increase in intrauterine growth restriction (IUGR) and preeclampsia (PreE). The investigators propose to collect myometrial, cord blood, and placental tissue samples from women at high altitude (Summit County) and low altitude (Denver) in Colorado in order to determine if residence at altitude during pregnancy changes the vasoreactivity of myometrial arteries (MA). If altered MA vasoreactivity is found, further studies may be able to link these changes to the increased rates of PreE and IUGR at altitude and contribute to the understanding of these two disorders.

Study Overview

Study Details

Study overview

Pregnancy elicits adaptive changes in uteroplacental blood flow, which are altered at high altitude and may contribute to the observed 3-fold increase in intrauterine growth restriction (IUGR) and preeclampsia (PreE). The investigators propose to collect myometrial, cord blood, and placental tissue samples from women at high altitude (Summit County) and low altitude (Denver) in Colorado in order to determine if residence at altitude during pregnancy changes the vasoreactivity of myometrial arteries (MA). If altered MA vasoreactivity is found, further studies may be able to link these changes to the increased rates of PreE and IUGR at altitude and contribute to the understanding of these two disorders.

Effects of High Altitude on 5' Adenosine Monophosphate-activated Protein Kinase (AMPK) Activation and Peroxisome Proliferator-activated Receptor Gamma (PPARγ) Regulation

Effects of High Altitude on AMPK Activation

Condition
Pregnancy
Intervention / Treatment

-

Contacts and Locations

Aurora

University of Colorado Denver Anschutz Medical Campus, Aurora, Colorado, United States, 80045

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.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Women scheduled for cesarean delivery at University of Colorado Hospital (Denver, 1600 m) and St. Anthony's Summit Medical Center (Summit County, 3000 m)
  • * Cesarean delivery at a prescheduled time without any labor, typically at 39 weeks gestation
  • * Women will be excluded if there are co-existing medical diagnoses that are known to affect vascular parameters (i.e., diabetes mellitus, gestational diabetes, any hypertensive disorder of pregnancy, or a current smoker).
  • * Women with multiple gestations and preterm deliveries will also be excluded.

Ages Eligible for Study

18 Years to 45 Years

Sexes Eligible for Study

FEMALE

Accepts Healthy Volunteers

Yes

Collaborators and Investigators

University of Colorado, Denver,

Lorna Moore, PhD, PRINCIPAL_INVESTIGATOR, University of Colorado, Denver

Study Record Dates

2026-12-31