Evidence map›Paper›PMID 27688871›Full record

ArticleBiology of sex differences2016

Reduction of apoptosis and preservation of mitochondrial integrity under ischemia/reperfusion injury is mediated by estrogen receptor β.

Carola Schubert, Valeria Raparelli, Christina Westphal, Elke Dworatzek, George Petrov, Georgios Kararigas, Vera Regitz-Zagrosek

Open access · goldAbstract read
In one paragraph

Article in Biology of sex differences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Sex-Related Effects on Cardiac Development and Disease.Journal of cardiovascular development and disease · 2022
    Review
  10. Article
  11. Review
  12. Review
  13. Oestrogenic Regulation of Mitochondrial Dynamics.International journal of molecular sciences · 2022
    Review
  14. Role of estrogen receptors in health and disease.Frontiers in endocrinology · 2022
    Review
  15. Estrogen and Cardiovascular Health.Frontiers in cardiovascular medicine · 2022
    Article
  16. Article
  17. Role of Biological Sex in the Cardiovascular-Gut Microbiome Axis.Frontiers in cardiovascular medicine · 2021
    Review
  18. Review
  19. Dietary Energy Partition: The Central Role of Glucose.International journal of molecular sciences · 2020
    Review
  20. Article
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

7 authors at 4 institutions in 2 countries.

Carola Schubert *Institute of Gender in Medicine & Center for Cardiovascular Research, Charité-Universitaetsmedizin, Hessische Str. 3-4, 10115 Berlin, Germany.
Valeria Raparelli *Institute of Gender in Medicine & Center for Cardiovascular Research, Charité-Universitaetsmedizin, Hessische Str. 3-4, 10115 Berlin, Germany.
Christina WestphalMax-Delbrück-Center for Molecular Medicine Berlin-Buch, Berlin, Germany.
Elke DworatzekInstitute of Gender in Medicine & Center for Cardiovascular Research, Charité-Universitaetsmedizin, Hessische Str. 3-4, 10115 Berlin, Germany.
George PetrovKlinik für Kardiovaskuläre Chirurgie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany.
Georgios KararigasInstitute of Gender in Medicine & Center for Cardiovascular Research, Charité-Universitaetsmedizin, Hessische Str. 3-4, 10115 Berlin, Germany.
Vera Regitz-ZagrosekInstitute of Gender in Medicine & Center for Cardiovascular Research, Charité-Universitaetsmedizin, Hessische Str. 3-4, 10115 Berlin, Germany.
Charité - Universitätsmedizin Berlin · DEGerman Centre for Cardiovascular Research · DEHeinrich Heine University Düsseldorf · DEMax Delbrück Center · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEstrogen improves cardiac recovery after ischemia/reperfusion (I/R) by yet incompletely understood mechanisms. Mitochondria play a crucial role in I/R injury through cytochrome c-dependent apoptosis activation. We tested the hypothesis that 17β-estradiol (E2) as well as a specific ERβ agonist improve cardiac recovery through estrogen receptor (ER)β-mediated mechanisms by reducing mitochondria-induced apoptosis and preserving mitochondrial integrity.

methodsWe randomized ovariectomized C57BL/6N mice 24h before I/R to pre-treatment with E2 or a specific ERβ agonist (ERβA). Isolated hearts were perfused for 20min prior to 30min global ischemia followed by 40min reperfusion.

resultsCompared with controls, ERβA and E2 treated groups showed a significant improvement in cardiac recovery, i.e. an increase in left ventricular developed pressure, dP/dtmax and dP/dtmin. ERβA and E2 pre-treatment led to a significant reduction in apoptosis with decreased cytochrome c release from the mitochondria and increased mitochondrial levels of anti-apoptotic Bcl2 and ACAA2. Protein levels of mitochondrial translocase inner membrane (TIM23) and mitochondrial complex I of respiratory chain were increased by ERβA and E2 pre-treatment. Furthermore, we found a significant increase of myosin light chain 2 (MLC2) phosphorylation together with ERK1/2 activation in E2, but not in ERβA treated groups.

conclusionsActivation of ERβ is essential for the improvement of cardiac recovery after I/R through the inhibition of apoptosis and preservation of mitochondrial integrity and can be a achieved by a specific ERβ agonist. Furthermore, E2 modulates MLC2 activation after I/R independent of ERβ.

Indexed as

ApoptosisEstrogen receptor βIschemia/reperfusionMitochondriaMyosin light chain

Identifiers

PMID27688871
PMCPMC5035458
OpenAlexW2521202425

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.