Evidence map›Paper›PMID 38267672›Full record

ArticleGeroScience2024

Mitochondrial complex I inhibition triggers NAD

Roman Abrosimov, Marius W Baeken, Samuel Hauf, Ilka Wittig, Parvana Hajieva, Carmen E Perrone, Bernd Moosmann

Abstract read
In one paragraph

Article in GeroScience, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  17. Anti-diabetic effects of Dachaihu decoction combined withFrontiers in cell and developmental biology · 2025
    Article
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  19. HADHA Regulates Respiratory Complex Assembly and Couples FAO and OXPHOS.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
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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

7 authors.

Roman AbrosimovInstitute for Pathobiochemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany.
Marius W BaekenNucleic Acid Chemistry and Engineering Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa, Japan.
Samuel HaufNucleic Acid Chemistry and Engineering Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa, Japan.
Ilka WittigInstitute for Cardiovascular Physiology, Goethe University, Frankfurt, Germany.
Parvana HajievaInstitute for Translational Medicine, MSH Medical School, Hamburg, Germany.
Carmen E PerroneOrentreich Foundation for the Advancement of Science, Cold Spring-On-Hudson, NY, USA.
Bernd MoosmannInstitute for Pathobiochemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany. moosmann@uni-mainz.de.ORCID 0000-0002-7703-7712

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inhibition of mitochondrial complex I (NADH dehydrogenase) is the primary mechanism of the antidiabetic drug metformin and various unrelated natural toxins. Complex I inhibition can also be induced by antidiabetic PPAR agonists, and it is elicited by methionine restriction, a nutritional intervention causing resistance to diabetes and obesity. Still, a comprehensible explanation to why complex I inhibition exerts antidiabetic properties and engenders metabolic inefficiency is missing. To evaluate this issue, we have systematically reanalyzed published transcriptomic datasets from MPP-treated neurons, metformin-treated hepatocytes, and methionine-restricted rats. We found that pathways leading to NADPH formation were widely induced, together with anabolic fatty acid biosynthesis, the latter appearing highly paradoxical in a state of mitochondrial impairment. However, concomitant induction of catabolic fatty acid oxidation indicated that complex I inhibition created a "futile" cycle of fatty acid synthesis and degradation, which was anatomically distributed between adipose tissue and liver in vivo. Cofactor balance analysis unveiled that such cycling would indeed be energetically futile (-3 ATP per acetyl-CoA), though it would not be redox-futile, as it would convert NADPH into respirable FADH

Indexed as

Electron Transport Complex IFatty AcidsGlucoseNADPOxidation-ReductionAnimalsHypoglycemic AgentsMaleMetforminMitochondriaNADRatsElectron Transport Complex IFatty AcidsGlucoseHypoglycemic AgentsMetforminNADNADPDiabetesFGF21MetforminMethionine restrictionNADH dehydrogenasePeroxisome proliferator-activated receptor

Identifiers

PMID38267672
PMCPMC11226580

What OpenQuestion holds

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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.