Evidence map›Paper›PMID 35355221›Full record

ArticleGeroScience2022

Mitochondrial ROS signalling requires uninterrupted electron flow and is lost during ageing in flies.

Charlotte Graham, Rhoda Stefanatos, Angeline E H Yek, Ruth V Spriggs, Samantha H Y Loh, Alejandro Huerta Uribe, Tong Zhang, L Miguel Martins, Oliver D K Maddocks, Filippo Scialo and 1 more

Open access · hybridAbstract read
In one paragraph

Article in GeroScience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 18% 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

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

  1. Pooled it
  2. Review
  3. Heat stress drives opposing redox shifts in temperate versus tropicalbioRxiv : the preprint server for biology · 2026
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  11. Infection and immunity · 2024
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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

11 authors at 7 institutions in 3 countries.

Charlotte GrahamInstitute for Cell and Molecular Biosciences, Newcastle University Institute for Ageing, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne, NE4 5PL, UK.
Rhoda StefanatosInstitute for Cell and Molecular Biosciences, Newcastle University Institute for Ageing, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne, NE4 5PL, UK.
Angeline E H YekInstitute for Cell and Molecular Biosciences, Newcastle University Institute for Ageing, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne, NE4 5PL, UK.
Ruth V SpriggsMRC Toxicology Unit, University of Cambridge, Cambridge, CB2 1QR, UK.
Samantha H Y LohMRC Toxicology Unit, University of Cambridge, Cambridge, CB2 1QR, UK.
Alejandro Huerta UribeInstitute of Cancer Sciences, Wolfson Wohl Cancer Research Centre, University of Glasgow, Glasgow, G61 1QH, UK.
Tong ZhangInstitute of Cancer Sciences, Wolfson Wohl Cancer Research Centre, University of Glasgow, Glasgow, G61 1QH, UK.
L Miguel MartinsMRC Toxicology Unit, University of Cambridge, Cambridge, CB2 1QR, UK.
Oliver D K MaddocksInstitute of Cancer Sciences, Wolfson Wohl Cancer Research Centre, University of Glasgow, Glasgow, G61 1QH, UK.
Filippo ScialoInstitute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK. Filippo.Scialo@unicampania.it.
Alberto SanzInstitute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK. Alberto.Sanzmontero@glasgow.ac.uk.ORCID 0000-0003-2149-1753
University of Glasgow · GBNewcastle Hospitals - Campus for Ageing and Vitality · GBUniversity of Cambridge · GBNovartis (China) · CNUniversity of Campania "Luigi Vanvitelli" · ITUniversity of Nottingham · GBWellcome Centre for Mitochondrial Research · GB

Funding

Biotechnology and Biological Sciences Research Council BB/R008167/2Cancer Research UK 19702Cancer Research UK C53309/A19702Medical Research Council MC_UU_00025/3Wellcome Trust 204715/Z/16/ZWellcome Trust 212241/A/18/ZWellcome Trust 212241/Z/18/Z
6 · The paper itself

Abstract

Mitochondrial reactive oxygen species (mtROS) are cellular messengers essential for cellular homeostasis. In response to stress, reverse electron transport (RET) through respiratory complex I generates high levels of mtROS. Suppression of ROS production via RET (ROS-RET) reduces survival under stress, while activation of ROS-RET extends lifespan in basal conditions. Here, we demonstrate that ROS-RET signalling requires increased electron entry and uninterrupted electron flow through the electron transport chain (ETC). We find that in old fruit flies, ROS-RET is abolished when electron flux is decreased and that their mitochondria produce consistently high levels of mtROS. Finally, we demonstrate that in young flies, limiting electron exit, but not entry, from the ETC phenocopies mtROS generation observed in old individuals. Our results elucidate the mechanism by which ROS signalling is lost during ageing.

Indexed as

DipteraElectronsAgingAnimalsElectron TransportReactive Oxygen SpeciesReactive Oxygen SpeciesAgeingComplex IComplex IVDrosophilaMitochondriaReactive oxygen speciesReverse electron transport

Identifiers

PMID35355221
PMCPMC9616974
OpenAlexW4221123370

What Socratic 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 Socratic graph.