Clinical trials / NCT02391519
Recruiting

Effects of High Altitude on AMPK Activation

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…

ClinicalTrials.gov IDNCT02391519
PhaseNot Applicable
Enrollment84
SponsorUniversity of Colorado, Denver
Age18 Years
SexFEMALE
I'm interested View official listing

Conditions studied

Pregnancy, IUGR, Preeclampsia

About this study

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.

Interventions

Primary outcomes

Eligibility information

Inclusion 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 Exclusion Criteria: * 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.

Study locations

Before you participate: Varda Clinical is an independent discovery tool, not the study sponsor or a medical provider. Eligibility can only be determined by the official study team. Discuss potential risks and benefits with a qualified healthcare professional.

Source: ClinicalTrials.gov. Record last refreshed by Varda Clinical: 2026-09-27.