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Study · Measured the body's own peptide · 1992

3 results

Thymosin alpha 1 is a native peptide in several tissues.

Franco FJ, Diaz C, Barcia M, Freire M

Biochimica et biophysica acta1 Mar 1992Cited by 27 (Europe PMC)

PMID1554740 (opens in a new tab)DOI10.1016/0167-4838(92)90422-a (opens in a new tab)PepBankPUB-01554740
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)Other

    Thymosin alpha‑1 is present as a native peptide in calf thymus and in several lymphoid and non-lymphoid rat tissues.

    In plain wordsIn calf and rat tissues, the body's own thymosin alpha‑1 was found as a natural peptide.

    Peptide
    Thymosin alpha-1
    Outcome
    Not applicableNative thymosin alpha 1 in tissues
    Study

    calf; ratn: not reported in source

    calf thymus and rat tissue extracts
    Outcome group
    Immune response · Immune and inflammation

    Source sentences

    Summary
    T alpha 1 is present as a native peptide in calf thymus and in several lymphoid and non-lymphoid rat tissues.

    This result measures the body's own Thymosin alpha-1. Nobody was given the peptide. It is not evidence about taking it.

  2. 02AnimalEndogenous levelAnimal study (in vivo)Other

    In all tissues studied, thymosin alpha‑1 was present at higher concentration than prothymosin alpha.

    In plain wordsIn the calf and rat tissues tested, the body's own thymosin alpha‑1 level was higher than that of prothymosin alpha.

    Peptide
    Thymosin alpha-1
    Outcome
    IncreaseThymosin alpha 1 concentration compared with prothymosin alpha
    Study

    calf; ratn: not reported in source

    calf thymus and rat tissue extracts
    Comparator
    Prothymosin alpha
    Outcome group
    Immune response · Immune and inflammation

    Measurements

    Thymosin alpha 1 concentration
    80 to 183 micrograms per gram of tissue
    all tissues studied
    Prothymosin alpha concentration
    44 to 123 micrograms per gram of tissue
    all tissues studied

    Source sentences

    Summary
    In all the tissues studied, T alpha 1 was present in higher concentration than ProT alpha (80-183 and 44-123 micrograms per gram of tissue, respectively).

    This result measures the body's own Thymosin alpha-1. Nobody was given the peptide. It is not evidence about taking it.

  3. 03AnimalEndogenous levelAnimal study (in vivo)Other

    The prothymosin alpha to thymosin alpha‑1 ratio did not change when no measures were taken to prevent proteolysis during tissue homogenization.

    In plain wordsIn tissue tests, the ratio of prothymosin alpha to the body's own thymosin alpha‑1 did not change without protection against protein breakdown.

    Peptide
    Thymosin alpha-1
    Outcome
    No significant changeProT alpha/T alpha 1 ratio without proteolysis prevention
    Study

    calf; ratn: not reported in source

    calf thymus and rat tissue extracts
    Outcome group
    Immune response · Immune and inflammation

    Source sentences

    Summary
    The ProT alpha/T alpha 1 ratio did not change when no measures were taken to prevent proteolysis during tissue homogenization.

    This result measures the body's own Thymosin alpha-1. 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 3Current

    10 Oct 2026, 08:55 UTC

    Study results updated

  2. Version 2

    9 Oct 2026, 03:03 UTC

    Study data updated · source update from Europe PMC

  3. Version 1

    9 Oct 2026, 03:02 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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