Evidence map›Paper›PMID 37100997›Full record

ArticleNature metabolism2023

Branched-chain amino acid catabolism in muscle affects systemic BCAA levels but not insulin resistance.

Megan C Blair, Michael D Neinast, Cholsoon Jang, Qingwei Chu, Jae Woo Jung, Jessie Axsom, Marc R Bornstein, Chelsea Thorsheim, Kristina Li, Atsushi Hoshino and 5 more

Open access · greenAbstract read
In one paragraph

Article in Nature metabolism, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
7.1field-weighted citation impact, top 2% 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

42 citing papers in PubMed, 46 citations in OpenAlex.

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  19. Exercise benefits in metabolism on cardiovascular disease.Frontiers in cardiovascular medicine · 2026
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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

15 authors at 6 institutions in 2 countries.

Megan C BlairPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Michael D NeinastLewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA.ORCID http://orcid.org/0000-0003-4032-8142
Cholsoon JangDepartment of Biological Chemistry, University of California Irvine, Irvine, CA, USA.ORCID http://orcid.org/0000-0001-6651-4213
Qingwei ChuPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Jae Woo JungPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0001-7178-7400
Jessie AxsomPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0002-8013-9576
Marc R BornsteinPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0002-5195-6737
Chelsea ThorsheimPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0002-5990-4165
Kristina LiPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0002-4417-0998
Atsushi HoshinoKyoto Prefectural University of Medicine, Kyoto, Japan.ORCID http://orcid.org/0000-0002-4015-1319
Steven YangWashington University School of Medicine, St Louis, MO, USA.ORCID http://orcid.org/0000-0002-5168-4858
Rachel J Roth FlachPfizer Inc., Cambridge, MA, USA.ORCID http://orcid.org/0000-0003-2754-828X
Bei B ZhangPfizer Inc., Cambridge, MA, USA.
Joshua D RabinowitzLewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA.ORCID http://orcid.org/0000-0002-1247-4727
Zoltan AranyPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. zarany@pennmedicine.upenn.edu.ORCID http://orcid.org/0000-0003-1368-2453
University of Pennsylvania · USPfizer (United States) · USPrinceton University · USKyoto Prefectural University of Medicine · JPUniversity of California, Irvine · USWashington University in St. Louis · US

Funding

VIRAL VECTOR COREP30DK019525 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI MITCHELL A. LAZAR · 1986 to 2026
$48.3M
Keeping fat out of muscle - Role of Branched Amino AcidsAmino Acids in Insulin ResistanceR01DK114103 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI Zoltan P Arany · 2018 to 2026
$4.5M
Branched chain amino acids in heart failureR01HL152446 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI Zoltan P Arany · 2020 to 2026
$3.7M
Branched chain amino acids in pancreatic carcinogenesisR01CA248315 · NCI · UNIVERSITY OF PENNSYLVANIA · PI Zoltan P Arany, Kathryn Elaine Wellen · 2020 to 2026
$2.8M
High-throughput screening for modulators of vascular fat transport to treat and prevent diabetesR01DK119656 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI ARANY, ZOLTAN P · 2019 to 2022
$2.6M
Indirect calorimetry cages equipped for glucose and blood pressure telemetryS10OD025098 · OD · UNIVERSITY OF PENNSYLVANIA · PI BAUR, JOSEPH A. · 2019 to 2019
$750k
Investigating Branched Chain Amino Acid Oxidation in Skeletal Muscle and its Contribution to Insulin ResistanceF31DK132839 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI BLAIR, MEGAN CHANDLER · 2022 to 2023
$58k
NCI NIH HHS R01 CA248315NHLBI NIH HHS R01 HL152446NIDDK NIH HHS F31 DK132839NIDDK NIH HHS P30 DK019525NIDDK NIH HHS R01 DK114103NIDDK NIH HHS R01 DK119656NIH HHS S10 OD025098
6 · The paper itself

Abstract

Elevated levels of plasma branched-chain amino acids (BCAAs) have been associated with insulin resistance and type 2 diabetes since the 1960s. Pharmacological activation of branched-chain α-ketoacid dehydrogenase (BCKDH), the rate-limiting enzyme of BCAA oxidation, lowers plasma BCAAs and improves insulin sensitivity. Here we show that modulation of BCKDH in skeletal muscle, but not liver, affects fasting plasma BCAAs in male mice. However, despite lowering BCAAs, increased BCAA oxidation in skeletal muscle does not improve insulin sensitivity. Our data indicate that skeletal muscle controls plasma BCAAs, that lowering fasting plasma BCAAs is insufficient to improve insulin sensitivity and that neither skeletal muscle nor liver account for the improved insulin sensitivity seen with pharmacological activation of BCKDH. These findings suggest potential concerted contributions of multiple tissues in the modulation of BCAA metabolism to alter insulin sensitivity.

Indexed as

Diabetes Mellitus, Type 2Insulin ResistanceAmino Acids, Branched-ChainAnimalsMaleMiceMuscle, SkeletalOxidation-ReductionAmino Acids, Branched-Chain

Identifiers

PMID37100997
PMCPMC10278155
OpenAlexW4367048991

What OpenQuestion holds

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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.