Evidence map›Paper›PMID 32502374›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2020

AMPK activation in pregnant human myometrial arteries from high-altitude and intrauterine growth-restricted pregnancies.

Ramón A Lorca, Christopher J Matarazzo, Elise S Bales, Julie A Houck, David J Orlicky, Anna G Euser, Colleen G Julian, Lorna G Moore

Open access · bronzeAbstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Guidelines for assessing maternal cardiovascular physiology during pregnancy and postpartum.American journal of physiology. Heart and circulatory physiology · 2024
    Guideline
  2. Review
  3. Article
  4. Review
  5. High-altitude pregnancy adaptation: evidence from a Himalayan population in Leh.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  6. The uteroplacental circulation at high altitude: adaptation and maladaptation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  7. AMPK function in uterine vasculature and placenta at high altitude.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  8. Beyond blood flow: the multifaceted role of AMPK in regulating fetal growth at high altitudes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  9. AdaptiveiScience · 2025
    Article
  10. Placental Adaptation to Hypoxia: The Case of High-Altitude Pregnancies.International journal of environmental research and public health · 2025
    Review
  11. Article
  12. Surviving birth at high altitude.The Journal of physiology · 2024
    Review
  13. Maternal AMPK pathway activation with uterine artery blood flow and fetal growth maintenance during hypoxia.American journal of physiology. Heart and circulatory physiology · 2024
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Why is human uterine artery blood flow during pregnancy so high?American journal of physiology. Regulatory, integrative and comparative physiology · 2022
    Article
  19. Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Ramón A LorcaDivision of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado.
Christopher J MatarazzoDivision of Biomedical Informatics and Personalized Medicine, Department of Medicine, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado.
Elise S BalesDivision of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado.
Julie A HouckDivision of Biomedical Informatics and Personalized Medicine, Department of Medicine, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado.
David J OrlickyDepartment of Pathology, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado.ORCID 0000-0002-0417-1400
Anna G EuserDivision of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado.
Colleen G JulianDivision of Biomedical Informatics and Personalized Medicine, Department of Medicine, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado.
Lorna G MooreDivision of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Colorado Denver-Anschutz Medical Campus, Aurora, Colorado.
University of Colorado Anschutz Medical Campus · US

Funding

Effects of chronic hypoxia and AMPK activation on uteroplacental perfusion, placental metabolism and the regulation of fetal growthR01HD088590 · NICHD · UNIVERSITY OF COLORADO DENVER · PI Colleen Glyde Julian, LORNA G. MOORE · 2016 to 2026
$4.3M
NICHD NIH HHS R01 HD088590
6 · The paper itself

Abstract

High-altitude (>2,500 m) residence increases the incidence of intrauterine growth restriction (IUGR) due, in part, to reduced uterine artery blood flow and impaired myometrial artery (MA) vasodilator response. A role for the AMP-activated protein kinase (AMPK) pathway in protecting against hypoxia-associated IUGR is suggested by genomic and transcriptomic studies in humans and functional studies in mice. AMPK is a hypoxia-sensitive metabolic sensor with vasodilatory properties. Here we hypothesized that AMPK-dependent vasodilation was increased in MAs from high versus low-altitude (<1,700 m) Colorado women with appropriate for gestational age (AGA) pregnancies and reduced in IUGR pregnancies regardless of altitude. Vasoreactivity studies showed that, in AGA pregnancies, MAs from high-altitude women were more sensitive to vasodilation by activation of AMPK with A769662 due chiefly to increased endothelial nitric oxide production, whereas MA responses to AMPK activation in the low-altitude women were endothelium independent. MAs from IUGR compared with AGA pregnancies had blunted vasodilator responses to acetylcholine at high altitude. We concluded that

Indexed as

VasodilationAdultAltitude SicknessAMP-Activated Protein Kinase KinasesArteriesBiphenyl CompoundsFemaleFetal Growth RetardationHumansMyometriumNitric OxidePregnancyProtein KinasesPyronesThiophenes4-hydroxy-3-(4-(2-hydroxyphenyl)phenyl)-6-oxo-7H-thieno(2,3-b)pyridine-5-carbonitrileAMP-Activated Protein Kinase KinasesBiphenyl CompoundsNitric OxideProtein KinasesPyronesThiophenesaltitudeAMPKhypoxiaintrauterine growth restrictionvasodilation

Identifiers

PMID32502374
PMCPMC7474441
OpenAlexW3033584815

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.