Evidence map›Paper›PMID 37461880›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2023

Medium-chain fatty acid oxidation is independent of l-carnitine in liver and kidney but not in heart and skeletal muscle.

Andrea S Pereyra, Kelsey L McLaughlin, Katherine A Buddo, Jessica M Ellis

Open access · hybridAbstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
8.0field-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

31 citing papers in PubMed, 42 citations in OpenAlex.

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  11. Immunometabolic Reprogramming by Black Soldier Fly (Animals : an open access journal from MDPI · 2026
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  17. Mitochondrial control of fuel switching via carnitine biosynthesis.bioRxiv : the preprint server for biology · 2025
    Article
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  19. 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

4 authors at 1 institution in 1 country.

Andrea S PereyraDepartment of Physiology and East Carolina Diabetes and Obesity Institute, Brody School of Medicine at East Carolina University, Greenville, North Carolina, United States.ORCID 0000-0001-7596-2421
Kelsey L McLaughlinDepartment of Physiology and East Carolina Diabetes and Obesity Institute, Brody School of Medicine at East Carolina University, Greenville, North Carolina, United States.
Katherine A BuddoDepartment of Physiology and East Carolina Diabetes and Obesity Institute, Brody School of Medicine at East Carolina University, Greenville, North Carolina, United States.
Jessica M EllisDepartment of Physiology and East Carolina Diabetes and Obesity Institute, Brody School of Medicine at East Carolina University, Greenville, North Carolina, United States.ORCID 0000-0003-3803-8461
East Carolina University · US

Funding

Determining the Biological Effects of Mitochondrial Acyl ToxicityR01DK125812 · NIDDK · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI ELLIS, JESSICA M · 2020 to 2025
$2.3M
NIDDK NIH HHS R01 DK125812
6 · The paper itself

Abstract

Medium-chain fatty acid (MCFA) consumption confers a wide range of health benefits that are highly distinct from long-chain fatty acids (LCFAs). A major difference between the metabolism of LCFAs compared with MCFAs is that mitochondrial LCFA oxidation depends on the carnitine shuttle, whereas MCFA mitochondrial oxidation is not. Although MCFAs are said to range from 6 to 14 carbons long based on physicochemical properties in vitro, the biological cut-off length of acyl chains that can bypass the carnitine shuttle in different mammalian tissues is unknown. To define the range of acyl chain length that can be oxidized in the mitochondria independent of carnitine, we determined the oxidative metabolism of free fatty acids (FFAs) from 6 to 18 carbons long in the liver, kidney, heart, and skeletal muscle. The liver oxidized FFAs 6 to 14 carbons long, whereas the kidney oxidized FFAs from 6 to 10 carbons in length. Heart and skeletal muscle were unable to oxidize FFAs of any chain length. These data show that while the liver and kidney can oxidize MCFAs in the free form, the heart and skeletal muscle require carnitine for the oxidative metabolism of MCFAs. Together these data demonstrate that MCFA oxidation independent of carnitine is tissue-specific.

Indexed as

CarnitineFatty AcidsAnimalsFatty Acids, NonesterifiedKidneyLiverMammalsMuscle, SkeletalOxidation-ReductionCarnitineFatty AcidsFatty Acids, Nonesterifiedacyl chain lengthcarnitinefatty acid oxidationmedium-chain fatty acidsmitochondria

Identifiers

PMID37461880
PMCPMC10642992
OpenAlexW4384627218

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.