Evidence map›Paper›PMID 23019215›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2012

Loss of muscle strength during sepsis is in part regulated by glucocorticoids and is associated with reduced muscle fiber stiffness.

Nima Alamdari, Gianluca Toraldo, Zaira Aversa, Ira Smith, Estibaliz Castillero, Guillaume Renaud, Rizwan Qaisar, Lars Larsson, Ravi Jasuja, Per-Olof Hasselgren

Abstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.4field-weighted citation impact, top 37% 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

19 citing papers in PubMed, 29 citations in OpenAlex.

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  17. Marine drugs · 2018
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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

10 authors at 5 institutions in 2 countries.

Nima AlamdariDepartment of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
Gianluca Toraldo
Zaira Aversa
Ira Smith
Estibaliz Castillero
Guillaume Renaud
Rizwan Qaisar
Lars Larsson
Ravi Jasuja
Per-Olof Hasselgren
Harvard University · USUppsala University · SEBeth Israel Deaconess Medical Center · USBoston Medical Center · USBoston University · US

Funding

MUSCLE PROTEIN TURNOVER AND AMINO ACID UPTAKE IN SEPSISR01DK037908 · NIDDK · UNIVERSITY OF CINCINNATI · PI HASSELGREN, PER-OLOF J · 1987 to 2010
$2.6M
NIDDK NIH HHS R01 DK-37908
6 · The paper itself

Abstract

Sepsis is associated with impaired muscle function but the role of glucocorticoids in sepsis-induced muscle weakness is not known. We tested the role of glucocorticoids in sepsis-induced muscle weakness by treating septic rats with the glucocorticoid receptor antagonist RU38486. In addition, normal rats were treated with dexamethasone to further examine the role of glucocorticoids in the regulation of muscle strength. Sepsis was induced in rats by cecal ligation and puncture, and muscle force generation (peak twitch and tetanic tension) was determined in lower extremity muscles. In other experiments, absolute and specific force as well as stiffness (reflecting the function of actomyosin cross bridges) were determined in isolated skinned muscle fibers from control and septic rats. Sepsis and treatment with dexamethasone resulted in reduced maximal twitch and tetanic force in intact isolated extensor digitorum longus muscles. The absolute and specific maximal force in isolated muscle fibers was reduced during sepsis together with decreased fiber stiffness. These effects of sepsis were blunted (but not abolished) by RU38486. The results suggest that muscle weakness during sepsis is at least in part regulated by glucocorticoids and reflects loss of contractility at the cellular (individual muscle fiber) level. In addition, the results suggest that reduced function of the cross bridges between actin and myosin (documented as reduced muscle fiber stiffness) may be involved in sepsis-induced muscle weakness. An increased understanding of mechanisms involved in loss of muscle strength will be important for the development of new treatment strategies in patients with this debilitating consequence of sepsis.

Indexed as

ActomyosinAnimalsBiomechanical PhenomenaGlucocorticoidsMaleMifepristoneMuscle Fibers, SkeletalMuscle StrengthRatsRats, Sprague-DawleyReceptors, GlucocorticoidSepsisActomyosinGlucocorticoidsMifepristoneReceptors, Glucocorticoid

Identifiers

PMID23019215
PMCPMC3517670
OpenAlexW2132095504

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.