Evidence map›Paper›PMID 25159324›Full record

ArticleAmerican journal of physiology. Endocrinology and metabolism2014

Reduced REDD1 expression contributes to activation of mTORC1 following electrically induced muscle contraction.

Bradley S Gordon, Jennifer L Steiner, Charles H Lang, Leonard S Jefferson, Scot R Kimball

Abstract read
In one paragraph

Article in American journal of physiology. Endocrinology and metabolism, 2014. 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
2.1field-weighted citation impact, top 12% 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, 44 citations in OpenAlex.

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  14. The role of raptor in the mechanical load-induced regulation of mTOR signaling, protein synthesis, and skeletal muscle hypertrophy.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
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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

5 authors at 1 institution in 1 country.

Bradley S GordonDepartment of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania.
Jennifer L SteinerDepartment of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania.
Charles H LangDepartment of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania.
Leonard S JeffersonDepartment of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania.
Scot R KimballDepartment of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania skimball@psu.edu.
Pennsylvania State University · US

Funding

REGULATION OF SKELETAL MUSCLE METABOLISMR01DK015658 · NIDDK · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI KIMBALL, SCOT R · 1986 to 2021
$7.4M
SEPSIS INDUCED INSULIN RESISTANCE IN DIABETESR01GM038032 · NIGMS · STATE UNIVERSITY NEW YORK STONY BROOK · PI LANG, CHARLES H. · 1992 to 2015
$5.4M
Regulation of Nutrient Sensing and Muscle Wasting by AlcoholR01AA011290 · NIAAA · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI LANG, CHARLES H. · 1997 to 2011
$3.5M
Regulation of Nutrient Sensing and Muscle Wasting by AlcoholR37AA011290 · NIAAA · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI LANG, CHARLES H. · 2012 to 2021
$3.4M
Modulation of Contraction-Induced Changes in Muscle mTOR Signaling by AlcoholF32AA023422 · NIAAA · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI STEINER, JENNIFER LYNN · 2014 to 2016
$158k
SEPSIS INDUCED INSULIN RESISTANCE IN DIABETESR29GM038032 · NIGMS · LOUISIANA STATE UNIV HSC NEW ORLEANS · PI LANG, CHARLES H. · 1987 to 1991
–
NIAAA NIH HHS AA-011290NIAAA NIH HHS F32 AA-023422NIAAA NIH HHS F32 AA023422NIAAA NIH HHS R37 AA011290NIDDK NIH HHS DK-15658NIDDK NIH HHS R01 DK015658NIGMS NIH HHS GM-38032NIGMS NIH HHS R01 GM038032
6 · The paper itself

Abstract

Regulated in DNA damage and development 1 (REDD1) is a repressor of mTOR complex 1 (mTORC1) signaling. In humans, REDD1 mRNA expression in skeletal muscle is repressed following resistance exercise in association with activation of mTORC1. However, whether REDD1 protein expression is also reduced after exercise and if so to what extent the loss contributes to exercise-induced activation of mTORC1 is unknown. Thus, the purpose of the present study was to examine the role of REDD1 in governing the response of mTORC1 and protein synthesis to a single bout of muscle contractions. Eccentric contractions of the tibialis anterior were elicited via electrical stimulation of the sciatic nerve in male mice in either the fasted or fed state or in fasted wild-type or REDD1-null mice. Four hours postcontractions, mTORC1 signaling and protein synthesis were elevated in fasted mice in association with repressed REDD1 expression relative to nonstimulated controls. Feeding coupled with contractions further elevated mTORC1 signaling, whereas REDD1 protein expression was repressed compared with either feeding or contractions alone. Basal mTORC1 signaling and protein synthesis were elevated in REDD1-null compared with wild-type mice. The magnitude of the increase in mTORC1 signaling was similar in both wild-type and REDD1-null mice, but, unlike wild-type mice, muscle contractions did not stimulate protein synthesis in mice deficient for REDD1, presumably because basal rates were already elevated. Overall, the data demonstrate that REDD1 expression contributes to the modulation of mTORC1 signaling following feeding- and contraction-induced activation of the pathway.

Indexed as

Down-RegulationMuscle ContractionSignal TransductionUp-RegulationAnimalsElectric StimulationEnzyme ActivationGene Expression RegulationHindlimbMaleMechanistic Target of Rapamycin Complex 1Mice, 129 StrainMice, Inbred C57BLMice, KnockoutMultiprotein ComplexesMuscle ProteinsDdit4 protein, mouseMechanistic Target of Rapamycin Complex 1Multiprotein ComplexesMuscle Proteinsribosomal protein S6 kinase, 70kD, polypeptide 1Ribosomal Protein S6 Kinases, 70-kDaTOR Serine-Threonine KinasesTranscription Factorshypertrophyoverloadprotein synthesisresistance exerciseskeletal muscle

Identifiers

PMID25159324
PMCPMC4200302
OpenAlexW2128952632

What OpenQuestion holds

Textmetadata
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.