Evidence map›Paper›PMID 28727760›Full record

ArticlePloS one2017

Detection of titin fragments in urine in response to exercise-induced muscle damage.

Kazue Kanda, Jun Sakuma, Takayuki Akimoto, Yasuo Kawakami, Katsuhiko Suzuki

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Pooled it
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  17. An acute eccentric exercise increases circulating myomesin 3 fragments.The journal of physiological sciences : JPS · 2021
    Article
  18. Article
  19. Towards Personalized Management of Sarcopenia in COPD.International journal of chronic obstructive pulmonary disease · 2021
    Review
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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 2 institutions in 1 country.

Kazue KandaInstitute for Nanoscience & Nanotechnology, Waseda University, Shinjyuku, Tokyo, Japan.
Jun SakumaDepartment of Health Science, Musashigaoka Junior College, Yoshimityo, Saitama, Japan.
Takayuki AkimotoDivision of Regenerative Medical Engineering, Centre for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Bunkyo, Tokyo, Japan.
Yasuo KawakamiFaculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan.
Katsuhiko SuzukiInstitute for Nanoscience & Nanotechnology, Waseda University, Shinjyuku, Tokyo, Japan.
Waseda University · JPMusashigaoka College · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many studies have attempted to determine the associations between blood biomarkers and exercise-induced muscle damage. However, poor correlations between the changes in biomarker levels and the magnitude of muscle symptoms have been reported. Recent advances in proteomic tools offer a strategy for the comprehensive analysis of protein expression, which can be used to identify biomarkers. Here, we used a proteomic analysis to identify urinary proteins that appear in response to a calf-raise exercise, including repetitive eccentric muscle contractions, and found that a titin (also known as connectin) N-terminal fragment molecule appears in the urine after eccentric exercise. We measured the titin fragment in urine samples from nine individuals before and after eccentric exercise using a newly-established enzyme-linked immunosorbent assay and found that the titin fragment excretion rate increased 96 h after the exercise (5.1 to 77.6 pg/min, p <0.01). The changes in the titin fragment excretion rate were correlated strongly with blood markers of muscle damage and with muscle symptoms. These findings suggest that the urinary titin fragment is potentially a noninvasive biomarker of muscle damage.

Indexed as

ExerciseAnalysis of VarianceBiomarkersChromatography, High Pressure LiquidConnectinElectrophoresisEnzyme-Linked Immunosorbent AssayHumansImmunoblottingLegMaleMuscle ContractionMuscle, SkeletalMuscle StrengthProtein DomainsProteomeBiomarkersConnectinProteomeTTN protein, human

Identifiers

PMID28727760
PMCPMC5519174
OpenAlexW2736618866

What OpenQuestion holds

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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.