Evidence map›Paper›PMID 27373929›Full record

ArticleScientific reports2016

Metformin inhibits Branched Chain Amino Acid (BCAA) derived ketoacidosis and promotes metabolic homeostasis in MSUD.

Davis S Sonnet, Monique N O'Leary, Mark A Gutierrez, Steven M Nguyen, Samiha Mateen, Yuehmei Hsu, Kylie P Mitchell, Antonio J Lopez, Jerry Vockley, Brian K Kennedy and 1 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

22 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Metabolomic Approaches to Investigate the Effect of Metformin: An Overview.International journal of molecular sciences · 2021
    Review
  10. Dairy consumption and hepatocellular carcinoma risk.Annals of translational medicine · 2021
    Review
  11. Review
  12. Article
  13. Article
  14. Metabolism.Essays in biochemistry · 2020
    Review
  15. Nutrients · 2020
    Review
  16. Loss of theDisease models & mechanisms · 2020
    Article
  17. Review
  18. Article
  19. Article
  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

11 authors at 5 institutions in 1 country.

Davis S SonnetBuck Institute for Research on Aging, 8001 Redwood Blvd, Novato, CA 94945, USA.
Monique N O'LearyBuck Institute for Research on Aging, 8001 Redwood Blvd, Novato, CA 94945, USA.
Mark A GutierrezUniversity of Colorado, Denver Anschutz Medical Campus 13001 E. 17th Pl. Aurora, Colorado, 80045, USA.
Steven M NguyenBuck Institute for Research on Aging, 8001 Redwood Blvd, Novato, CA 94945, USA.
Samiha MateenBuck Institute for Research on Aging, 8001 Redwood Blvd, Novato, CA 94945, USA.
Yuehmei HsuBuck Institute for Research on Aging, 8001 Redwood Blvd, Novato, CA 94945, USA.
Kylie P MitchellBuck Institute for Research on Aging, 8001 Redwood Blvd, Novato, CA 94945, USA.
Antonio J LopezUniversity of California, Davis 1 Shields Ave, Davis, CA 95616, USA.
Jerry VockleyUniversity of Pittsburgh School of Medicine, Department of Pediatrics, Children's Hospital of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA 153224.
Brian K KennedyBuck Institute for Research on Aging, 8001 Redwood Blvd, Novato, CA 94945, USA.
Arvind RamanathanBuck Institute for Research on Aging, 8001 Redwood Blvd, Novato, CA 94945, USA.
Buck Institute for Research on Aging · USUniversity of California, Davis · USUniversity of Colorado Denver · USUniversity of Michigan–Ann Arbor · USUniversity of Pittsburgh · US

Funding

METABOLISM OF SHORT CHAIN ACYL COAS AND THEIR DEFICIENCYR01DK054936 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI VOCKLEY, GERARD · 1999 to 2013
$2.5M
NIDDK NIH HHS R01 DK054936
6 · The paper itself

Abstract

Maple Syrup Urine Disease (MSUD) is an inherited disorder caused by the dysfunction in the branched chain keto-acid dehydrogenase (BCKDH) enzyme. This leads to buildup of branched-chain keto-acids (BCKA) and branched-chain amino acids (BCAA) in body fluids (e.g. keto-isocaproic acid from the BCAA leucine), leading to numerous clinical features including a less understood skeletal muscle dysfunction in patients. KIC is an inhibitor of mitochondrial function at disease relevant concentrations. A murine model of intermediate MSUD (iMSUD) shows significant skeletal muscle dysfunction as by judged decreased muscle fiber diameter. MSUD is an orphan disease with a need for novel drug interventions. Here using a 96-well plate (liquid chromatography- mass spectrometry (LC-MS) based drug-screening platform we show that Metformin, a widely used anti-diabetic drug, reduces levels of KIC in patient-derived fibroblasts by 20-50%. This Metformin-mediated effect was conserved in vivo; Metformin-treatment significantly reduced levels of KIC in the muscle (by 69%) and serum (by 56%) isolated from iMSUD mice, and restored levels of mitochondrial metabolites (e.g. AMP and other TCA). The drug also decreased the expression of mitochondrial branched chain amino transferase (BCAT) which produces KIC in skeletal muscle. This suggests that Metformin can restore skeletal muscle homeostasis in MSUD by decreasing mitochondrial KIC production.

Indexed as

Amino Acids, Branched-ChainAnimalsChromatography, LiquidDisease Models, AnimalFemaleFibroblastsHomeostasisHomozygoteKeto AcidsKetoglutaric AcidsKetosisLeucineMaleMaple Syrup Urine DiseaseMass SpectrometryMetforminalpha-ketoisocaproic acidAmino Acids, Branched-ChainKeto AcidsKetoglutaric AcidsLeucineMetformin

Identifiers

PMID27373929
PMCPMC4931503
OpenAlexW2473007433

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.