Evidence map›Paper›PMID 26447211›Full record

ReviewAmerican journal of physiology. Regulatory, integrative and comparative physiology2015

Increased risk for the development of preeclampsia in obese pregnancies: weighing in on the mechanisms.

Frank T Spradley, Ana C Palei, Joey P Granger

Open access · greenAbstract readReview
In one paragraph

Review in American journal of physiology. Regulatory, integrative and comparative physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed, 3 pooled it
10.8field-weighted citation impact, top 1% 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

86 citing papers in PubMed, 3 syntheses or guidelines pooled it, 140 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Metabolic abnormalities and obesity's impact on the risk for developing preeclampsia.American journal of physiology. Regulatory, integrative and comparative physiology · 2017
    Pooled it
  4. Trial
  5. Article
  6. Observational
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Observational
  14. Article
  15. Article
  16. Observational
  17. Review
  18. Pathophysiology of Maternal Obesity and Hypertension in Pregnancy.Journal of cardiovascular development and disease · 2025
    Review
  19. Article
  20. Review

26 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Frank T SpradleyDepartment of Physiology and Biophysics, Cardiovascular-Renal Research Center, Women's Health Research Center, The University of Mississippi Medical Center, Jackson, Mississippi.
Ana C PaleiDepartment of Physiology and Biophysics, Cardiovascular-Renal Research Center, Women's Health Research Center, The University of Mississippi Medical Center, Jackson, Mississippi.
Joey P GrangerDepartment of Physiology and Biophysics, Cardiovascular-Renal Research Center, Women's Health Research Center, The University of Mississippi Medical Center, Jackson, Mississippi jgranger@umc.edu.
University of Mississippi Medical Center · US

Funding

STRUCTURAL VASCULAR ADAPTATION OF THE MICROCIRCULATIONP01HL051971 · NHLBI · UNIVERSITY OF MISSISSIPPI MEDICAL CENTER · PI HESTER, ROBERT L · 1993 to 2018
$39.4M
Hypertension and Cardiorenal Research Training ProgramT32HL105324 · NHLBI · UNIVERSITY OF MISSISSIPPI MED CTR · PI Joey P. Granger · 2010 to 2026
$7.8M
Hypertension, Kidney and PregnancyR01HL108618 · NHLBI · UNIVERSITY OF MISSISSIPPI MED CTR · PI GRANGER, JOEY P. · 2011 to 2015
$1.8M
NHLBI NIH HHS 1R01HL108618-01NHLBI NIH HHS 2T32HL105324-06NHLBI NIH HHS 5P01HL051971-22NHLBI NIH HHS P01 HL051971NHLBI NIH HHS R01 HL108618NHLBI NIH HHS T32 HL105324
6 · The paper itself

Abstract

Preeclampsia (PE) is a pregnancy-specific disorder typically presenting as new-onset hypertension and proteinuria. While numerous epidemiological studies have demonstrated that obesity increases the risk of PE, the mechanisms have yet to be fully elucidated. Growing evidence from animal and human studies implicate placental ischemia in the etiology of this maternal syndrome. It is thought that placental ischemia is brought about by dysfunctional cytotrophoblast migration and invasion into the uterus and subsequent lack of spiral arteriole widening and placental perfusion. Placental ischemia/hypoxia stimulates the release of soluble placental factors into the maternal circulation where they cause endothelial dysfunction, particularly in the kidney, to elicit the clinical manifestations of PE. The most recognized of these factors are the anti-angiogenic sFlt-1 and pro-inflammatory TNF-α and AT1-AA, which promote endothelial dysfunction by reducing levels of the provasodilator nitric oxide and stimulating production of the potent vasoconstrictor endothelin-1 and reactive oxygen species. We hypothesize that obesity-related metabolic factors increase the risk for developing PE by impacting various stages in the pathogenesis of PE, namely, 1) cytotrophoblast migration and placental ischemia; 2) release of soluble placental factors into the maternal circulation; and 3) maternal endothelial and vascular dysfunction. This review will summarize the current experimental evidence supporting the concept that obesity and metabolic factors like lipids, insulin, glucose, and leptin affect placental function and increase the risk for developing hypertension in pregnancy by reducing placental perfusion; enhancing placental release of soluble factors; and by increasing the sensitivity of the maternal vasculature to placental ischemia-induced soluble factors.

Indexed as

Blood PressurePlacental CirculationAdipokinesAngiogenic ProteinsAnimalsFemaleHumansInflammation MediatorsIschemiaObesityPlacentaPre-EclampsiaPregnancyRisk AssessmentRisk FactorsSignal TransductionAdipokinesAngiogenic ProteinsInflammation Mediatorsbody mass indexinflammationplacental ischemiapregnancyRUPPsFlt-1

Identifiers

PMID26447211
PMCPMC4698403
OpenAlexW2187676869

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.