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Study · Measured the body's own peptide · 2006

3 results

Quantitative histology and MGF gene expression in rats following SSC exercise in vivo.

Baker BA, Rao KM, Mercer RR, Geronilla KB, Kashon ML, Miller GR, Cutlip RG

Medicine and science in sports and exercise1 Mar 2006Cited by 19 (Europe PMC)

PMID16540833 (opens in a new tab)DOI10.1249/01.mss.0000191419.67030.69 (opens in a new tab)PepBankPUB-16540833
Publisher pagePubMedAsk about this study
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Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study3

No result from this study comes from a test of the peptide.

Natural levels measured3

These results measure the body's own peptide. Nobody was given the peptide. They are not evidence about taking it. They are left out of key results, evidence counts and charts.

  1. 01AnimalEndogenous levelAnimal study (in vivo)Mechanism

    In rats, MGF mRNA increased transiently at 6 h after isometric contractions.

    In plain wordsIn rats, the body's own MGF rose briefly 6 hours after isometric muscle exercise.

    Peptide
    MGF / PEG-MGF
    Outcome
    IncreaseMGF mRNA at 6 h after isometric exercise
    Study

    ratn: not reported in source

    Male Sprague-Dawley rats, dorsiflexor muscles after stretch-shortening cycles
    Outcome group
    Muscle injury and repair · Musculoskeletal

    Source sentences

    Summary
    MGF mRNA was increased transiently at 6 h in the isometric group.
    2 context sentences
    Summary · context
    Dorsiflexor muscles of male Sprague-Dawley rats were exposed to seven sets of 10 SSC at 500 degrees .s(-1).
    Summary · context
    Animals were randomly assigned to a long muscle length injury group (L-inj), short muscle length injury group (S-inj), or isometric group (Iso), with recoveries examined at 6 or 48 h post-injury for each group.

    This result measures the body's own MGF / PEG-MGF. Nobody was given the peptide. It is not evidence about taking it.

  2. 02AnimalEndogenous levelAnimal study (in vivo)Mechanism

    In rats, MGF mRNA increased at 48 h after stretch-shortening cycles at a short muscle length.

    In plain wordsIn rats, the body's own MGF rose 48 hours after muscle exercise at a short muscle length.

    Peptide
    MGF / PEG-MGF
    Outcome
    IncreaseMGF mRNA at 48 h after short-length stretch-shortening exercise
    Study

    ratn: not reported in source

    Male Sprague-Dawley rats, dorsiflexor muscles after stretch-shortening cycles
    Outcome group
    Muscle injury and repair · Musculoskeletal

    Source sentences

    Summary
    In contrast, MGF mRNA was increased at 48 h in the S-inj
    2 context sentences
    Summary · context
    Dorsiflexor muscles of male Sprague-Dawley rats were exposed to seven sets of 10 SSC at 500 degrees .s(-1).
    Summary · context
    Animals were randomly assigned to a long muscle length injury group (L-inj), short muscle length injury group (S-inj), or isometric group (Iso), with recoveries examined at 6 or 48 h post-injury for each group.

    This result measures the body's own MGF / PEG-MGF. Nobody was given the peptide. It is not evidence about taking it.

  3. 03AnimalEndogenous levelAnimal study (in vivo)Mechanism

    In rats, MGF mRNA did not increase at 6 h or 48 h after stretch-shortening cycles at a long muscle length.

    In plain wordsIn rats, the body's own MGF did not rise after muscle exercise at a long muscle length.

    Peptide
    MGF / PEG-MGF
    Outcome
    No significant changeMGF mRNA after long-length stretch-shortening exercise
    Study

    ratn: not reported in source

    Male Sprague-Dawley rats, dorsiflexor muscles after stretch-shortening cycles
    Outcome group
    Muscle injury and repair · Musculoskeletal

    Source sentences

    Summary
    but was not increased at either time point in the L-inj group.
    2 context sentences
    Summary · context
    Dorsiflexor muscles of male Sprague-Dawley rats were exposed to seven sets of 10 SSC at 500 degrees .s(-1).
    Summary · context
    Animals were randomly assigned to a long muscle length injury group (L-inj), short muscle length injury group (S-inj), or isometric group (Iso), with recoveries examined at 6 or 48 h post-injury for each group.

    This result measures the body's own MGF / PEG-MGF. Nobody was given the peptide. It is not evidence about taking it.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    13 Oct 2026, 21:44 UTC

    Study results updated

  2. Version 1

    13 Oct 2026, 16:31 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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