Evidence map›Paper›PMID 33013673›Full record

ArticleFrontiers in neurology2020

Growth Differentiation Factor-11 Causes Neurotoxicity During Ischemia

Brad A Sutherland, Gina Hadley, Zoi Alexopoulou, Tiffany A Lodge, Ain A Neuhaus, Yvonne Couch, Nareg Kalajian, Karl J Morten, Alastair M Buchan

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 28% 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

4 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. GDF11-secreting cell transplant efficiently ameliorates age-related pulmonary fibrosis.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Article
  3. Article
  4. 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

9 authors at 2 institutions in 2 countries.

Brad A SutherlandAcute Stroke Programme, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Gina HadleyAcute Stroke Programme, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Zoi AlexopoulouNuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.
Tiffany A LodgeNuffield Department of Womens and Reproductive Health, University of Oxford, Oxford, United Kingdom.
Ain A NeuhausAcute Stroke Programme, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Yvonne CouchAcute Stroke Programme, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Nareg KalajianAcute Stroke Programme, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
Karl J MortenNuffield Department of Womens and Reproductive Health, University of Oxford, Oxford, United Kingdom.
Alastair M BuchanAcute Stroke Programme, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
University of Oxford · GBUniversity of Tasmania · AU

Funding

Medical Research Council MR/M022757/1
6 · The paper itself

Abstract

Age-related neuronal dysfunction can be overcome by circulating factors present in young blood. Growth differentiation factor-11 (GDF-11), a systemic factor that declines with age, can reverse age-related dysfunction in brain, heart and skeletal muscle. Given that age increases susceptibility to stroke, we hypothesized that GDF-11 may be directly protective to neurons following ischemia. Primary cortical neurons were isolated from E18 Wistar rat embryos and cultured for 7-10 days. Neurons were deprived of oxygen and glucose (OGD) to simulate ischemia. Neuronal death was assessed by lactate dehydrogenase, propidium iodide or CellTox™ green cytotoxicity assays. 40 ng/mL GDF-11 administration during 2 h OGD significantly increased neuronal death following 24 h recovery. However, GDF-11 pre-treatment did not affect neuronal death during 2 h OGD. GDF-11 treatment during the 24 h recovery period after 2 h OGD also did not alter death. Real-time monitoring for 24 h revealed that by 2 h OGD, GDF-11 treatment had increased neuronal death which remained raised at 24 h. Co-treatment of 1 μM SB431542 (ALK4/5/7 receptor inhibitor) with GDF-11 prevented GDF-11 neurotoxicity after 2 h OGD and 24 h OGD. Transforming growth factor beta (TGFβ) did not increase neuronal death to the same extent as GDF-11 following OGD. GDF-11 neurotoxicity was also exhibited following neuronal exposure to hydrogen peroxide. These results reveal for the first time that GDF-11 is neurotoxic to primary neurons in the acute phase of simulated stroke through primarily ALK4 receptor signaling.

Indexed as

GDF-11growth factorin vitroischemianeuronstroke

Identifiers

PMID33013673
PMCPMC7512098
OpenAlexW3086591417

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.