Evidence map›Paper›PMID 37840435›Full record

ArticleObesity (Silver Spring, Md.)2023

Lower muscle protein synthesis in humans with obesity concurrent with lower expression of muscle IGF1 splice variants.

Eduardo D S Freitas, Katon A Kras, Lori R Roust, Elena A De Filippis, Scot R Kimball, Matthew Buras, Christos S Katsanos

Open access · bronzeAbstract read
In one paragraph

Article in Obesity (Silver Spring, Md.), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

6 citing papers in PubMed, 7 citations in OpenAlex.

  1. Trial
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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 at 3 institutions in 1 country.

Eduardo D S FreitasSchool of Life Sciences, Arizona State University, Tempe, Arizona, USA.ORCID 0000-0001-8933-5496
Katon A KrasSchool of Life Sciences, Arizona State University, Tempe, Arizona, USA.
Lori R RoustCollege of Medicine, Mayo Clinic Arizona, Scottsdale, Arizona, USA.
Elena A De FilippisCollege of Medicine, Mayo Clinic Arizona, Scottsdale, Arizona, USA.
Scot R KimballDepartment of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA.ORCID 0000-0002-2149-7189
Matthew BurasDepartment of Biomedical Informatics, Mayo Clinic Arizona, Scottsdale, Arizona, USA.
Christos S KatsanosSchool of Life Sciences, Arizona State University, Tempe, Arizona, USA.ORCID 0000-0003-3025-5752
Mayo Clinic in Arizona · USArizona State University · USPenn State Milton S. Hershey Medical Center · US

Funding

REGULATION OF SKELETAL MUSCLE METABOLISMR01DK015658 · NIDDK · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI KIMBALL, SCOT R · 1986 to 2021
$7.4M
Regulation of Muscle Protein Phenotype in Humans with ObesityR01DK123441 · NIDDK · ARIZONA STATE UNIVERSITY-TEMPE CAMPUS · PI KATSANOS, CHRISTOS S · 2020 to 2023
$2.1M
NIDDK NIH HHS R01 DK015658NIDDK NIH HHS R01 DK123441
6 · The paper itself

Abstract

objectiveThis study tested the hypothesis that expression of insulin-like growth factor 1 (IGF-1) protein and mRNA splice variants is lower in skeletal muscle of humans with obesity who have a lower mixed-muscle protein fractional synthesis rate (MMP-FSR) when compared with individuals without obesity.

methodsThe study included nine participants with obesity (OB, mean [SD],  BMI = 35 [3] kg/m

resultsAlong with lower MMP-FSR, OB participants displayed lower mitochondrial protein FSR (p = 0.03) compared with W-OB participants. Expression of IGF-1 (p = 0.04) and IGF-1 receptor (p < 0.01) proteins was lower in muscle of OB participants. In addition, OB participants had lower (p < 0.05) mRNA expression of IGF1 variants Eb and Ec. This study demonstrates that lower protein synthesis in muscle of humans with obesity occurs concurrently with lower expression of muscle IGF-1 and IGF-1 receptor proteins, as well as lower mRNA expression of the IGF1 splice variants.

conclusionsThese findings indicate that lower protein synthesis observed in muscle of humans with obesity may result from diminished muscle IGF1 gene expression.

Indexed as

Insulin-Like Growth Factor IMuscle ProteinsHumansMitochondrial ProteinsMuscle, SkeletalObesityReceptor, IGF Type 1RNA, MessengerIGF1 protein, humanInsulin-Like Growth Factor IMitochondrial ProteinsMuscle ProteinsReceptor, IGF Type 1RNA, Messenger

Identifiers

PMID37840435
PMCPMC10650963
OpenAlexW4387662157

What OpenQuestion holds

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LicenceTDM
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.