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Study · Measured the body's own peptide · 1990

3 results

Hormone and immune response, with special reference to steroid hormone. 3. Sex steroid effect on T-cell differentiation.

Kawashima I, Sakabe K, Seiki K, Fujii-Hanamoto H

The Tokai journal of experimental and clinical medicine1 May 1990Cited by 5 (Europe PMC)

PMID2130527 (opens in a new tab)PepBankPUB-02130527
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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 measured1

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 mouse thymus, natural thymulin localized in reticuloepithelial cells that also contained estrogen and progestin receptors.

    In plain wordsIn mice, the body's own thymulin was located in thymic reticuloepithelial cells that also contained steroid receptors.

    Peptide
    Thymulin (serum thymic factor)
    Outcome
    Not applicableThymulin localization
    Study

    mousen: not reported in source

    Mouse thymus
    Outcome group
    Immune response · Immune and inflammation

    Source sentences

    Summary
    (i) the receptors for estrogen and progestin are both in the thymic cytosol, and they are mainly located in the reticuloepithelial cells in which thymulin (FTS) is also localized

    This result measures the body's own Thymulin (serum thymic factor). Nobody was given the peptide. It is not evidence about taking it.

Studies that did not test the peptide alone2

In this study, Thymulin (serum thymic factor) was a lab tool or a carrier, part of a mix, or the subject of a lab method. These results are not evidence about taking Thymulin (serum thymic factor).

  1. 02AnimalNot a test of Thymulin (serum thymic factor) aloneAnimal study (in vivo)Mechanism

    In mice, thymulin was reported to affect thymic weight, but the direction and exposure method were not stated.

    In plain wordsIn mice, thymulin affected thymus weight, but the abstract did not state the direction or exposure method.

    Peptide
    Thymulin (serum thymic factor)
    Outcome
    Direction not reportedThymic weight
    Study

    mousen: not reported in source

    Mouse thymus
    Outcome group
    Immune response · Immune and inflammation

    Source sentences

    Summary
    (ii) estrogen and thymulin affect thymic weight and T cell differentiation, especially helper T cell subset

    In this study, Thymulin (serum thymic factor) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Thymulin (serum thymic factor).

  2. 03AnimalNot a test of Thymulin (serum thymic factor) aloneAnimal study (in vivo)Mechanism

    In mice, thymulin affected T-cell differentiation, especially the helper subset, but the direction and exposure method were not stated.

    In plain wordsIn mice, thymulin affected T-cell differentiation, especially helper cells, but the direction and exposure method were not stated.

    Peptide
    Thymulin (serum thymic factor)
    Outcome
    Direction not reportedT-cell differentiation
    Study

    mousen: not reported in source

    Mouse thymus
    Outcome group
    Immune response · Immune and inflammation

    Source sentences

    Summary
    (ii) estrogen and thymulin affect thymic weight and T cell differentiation, especially helper T cell subset

    In this study, Thymulin (serum thymic factor) was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Thymulin (serum thymic factor).

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

    21 Oct 2026, 15:58 UTC

    Study results updated

  2. Version 2

    21 Oct 2026, 13:55 UTC

    Study data updated · source update from Europe PMC

  3. Version 1

    21 Oct 2026, 12:50 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

Publication types

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