Evidence map›Paper›PMID 25628568›Full record

ReviewFrontiers in physiology2014

Oxidative stress in preeclampsia and the role of free fetal hemoglobin.

Stefan R Hansson, Åsa Nääv, Lena Erlandsson

Registry-linked trialOpen access · goldAbstract readReview
In one paragraph

Review in Frontiers in physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06315985 (The Effect of Classical Turkish Music on Stress and Sleep Quality in Pregnant Women Diagnosed With Preeclampsia in the Clinic), which is not on this map. Cited by 71 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 2 pooled it
15.9field-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.

NCT06315985 naunknown statusnot on this mapstarted 2024, after this paper: background citation

The Effect of Classical Turkish Music on Stress and Sleep Quality in Pregnant Women Diagnosed With Preeclampsia in the Clinic

TypeinterventionalSponsorTarsus UniversityRan2024 to 2025Enrolled142ConditionsPre-EclampsiaArmsExperimental group: Listenning to the Turkish Classical Music to pregnant women diagnosed with preeclampsia
3 · Its place in the literature

Who cites it

71 citing papers in PubMed, 2 syntheses or guidelines pooled it, 162 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Review
  6. Article
  7. Hemocyanin controlsVirulence · 2025
    Article
  8. Article
  9. Article
  10. The Molecular Pathology of Pre-Eclamptic Hypertension.Current issues in molecular biology · 2025
    Article
  11. Observational
  12. Review
  13. Article
  14. Article
  15. Correlation of changes in circulating levels of hypoxia-induced factor-1α, erythropoietin, and cell-free fetal hemoglobin with feto-maternal pregnancy outcomes.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2025
    Article
  16. Proteomic Profiles of Maternal Plasma Extracellular Vesicles for Prediction of Preeclampsia.American journal of reproductive immunology (New York, N.Y. : 1989) · 2024
    Article
  17. Longitudinal Assessment of Oxidative Stress Markers in Women with Preeclampsia.Reproductive sciences (Thousand Oaks, Calif.) · 2024
    Article
  18. Article
  19. Review
  20. Review

11 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.

Stefan R HanssonDepartment of Obstetrics and Gynecology, Institute for Clinical Sciences, Lund University Lund, Sweden.
Åsa NäävDepartment of Obstetrics and Gynecology, Institute for Clinical Sciences, Lund University Lund, Sweden.
Lena ErlandssonDepartment of Obstetrics and Gynecology, Institute for Clinical Sciences, Lund University Lund, Sweden.
Lund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Preeclampsia is a leading cause of pregnancy complications and affects 3-7% of pregnant women. This review summarizes the current knowledge of a new potential etiology of the disease, with a special focus on hemoglobin-induced oxidative stress. Furthermore, we also suggest hemoglobin as a potential target for therapy. Gene and protein profiling studies have shown increased expression and accumulation of free fetal hemoglobin in the preeclamptic placenta. Predominantly due to oxidative damage to the placental barrier, fetal hemoglobin leaks over to the maternal circulation. Free hemoglobin and its metabolites are toxic in several ways; (a) ferrous hemoglobin (Fe(2+)) binds strongly to the vasodilator nitric oxide (NO) and reduces the availability of free NO, which results in vasoconstriction, (b) hemoglobin (Fe(2+)) with bound oxygen spontaneously generates free oxygen radicals, and (c) the heme groups create an inflammatory response by inducing activation of neutrophils and cytokine production. The endogenous protein α1-microglobulin, with radical and heme binding properties, has shown both ex vivo and in vivo to have the ability to counteract free hemoglobin-induced placental and kidney damage. Oxidative stress in general, and more specifically fetal hemoglobin-induced oxidative stress, could play a key role in the pathology of preeclampsia seen both in the placenta and ultimately in the maternal endothelium.

Indexed as

alpha-1-microglobulinfetal hemoglobinhemolysisoxidative stressplacenta

Identifiers

PMID25628568
PMCPMC4292435
OpenAlexW1986478341

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Registered trials

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.