Evidence map›Paper›PMID 27469054›Full record

ArticlePflugers Archiv : European journal of physiology2016

Regional adaptation of collagen in skeletal muscle to repeated bouts of strenuous eccentric exercise.

Ryo Takagi, Riki Ogasawara, Arata Tsutaki, Koichi Nakazato, Naokata Ishii

Abstract read
PubMed Publisher
In one paragraph

Article in Pflugers Archiv : European journal of physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

9 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Genetic manipulation of CCN2/CTGF unveils cell-specific ECM-remodeling effects in injured skeletal muscle.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  8. Article
  9. Article
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 3 institutions in 1 country.

Ryo TakagiDepartment of Life Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, 153-8902, Japan. ryotakagi1986@yahoo.co.jp.ORCID 0000-0002-8540-7015
Riki OgasawaraDepartment of Life and Materials Engineering, Nagoya Institute of Technology, Aichi, Japan.
Arata TsutakiGraduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan.
Koichi NakazatoGraduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan.
Naokata IshiiDepartment of Life Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, 153-8902, Japan.
Nippon Sport Science University · JPThe University of Tokyo · JPNagoya Institute of Technology · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigated the injured region-specific alterations of factors related to the "repeated bout effect" (RBE), i.e., when the first bout of eccentric exercise generates resistance to injuries from the second bout of the same exercise. Wistar rats were divided into single injury (SI) and repeated injury (RI) groups. The right gastrocnemius muscle was subjected to a bout of eccentric contractions (ECs) at the age of 14 weeks in the SI group and 10 and 14 weeks in the RI group. The number of injured fibers after the last bout of ECs was lower in RI than in SI. In the SI group, injured fibers after ECs were mainly located in the superficial region of muscle and expressed myosin heavy chain (MHC) IIx and IIb. Prior to the second bout of ECs, the fiber-type composition in the RI group showed decreased MHC IIx and IIb fibers and increased MHC IIa fibers compared with those in the SI group. However, most regenerating fibers showed either MHC IIx or IIb expression. Heat shock protein 72 and total collagen contents in whole muscle were higher in the RI group than in the SI group; however, only the collagen expression in the RI group was more intense than that in the SI group in the superficial region of muscle. These findings suggest that increased collagen may play a more important role in the injured region of muscle than the other factors in RBE.

Indexed as

Adaptation, PhysiologicalPhysical Conditioning, AnimalAnimalsCollagenHSP72 Heat-Shock ProteinsMaleMuscle ContractionMuscle, SkeletalMyosin Heavy ChainsRatsRats, WistarCollagenHSP72 Heat-Shock ProteinsMyosin Heavy ChainsAdaptationContractionHeat shock proteinMyosin heavy chainRegeneration

Identifiers

PMID27469054
OpenAlexW2486724980

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.