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Study · Measured the body's own peptide · 1983

7 results

Production and characterization of antibodies to thymosin beta 4.

Goodall GJ, Hempstead JL, Morgan JI

Journal of immunology (Baltimore, Md. : 1950)1 Aug 1983Cited by 33 (Europe PMC)

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 study7

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

    Radioimmunoassay values for thymosin beta‑4 in rat tissues ranged between 8 and 448 micrograms/g wet weight.

    In plain wordsIn rat tissues, the body's own thymosin beta‑4 level ranged widely, from 8 to 448 micrograms per gram of wet tissue.

    Outcome
    Not applicableThymosin beta 4 concentration in rat tissues
    Study

    ratn: not reported in source

    rat tissues
    Outcome group
    Endogenous peptide levels · Whole body

    Measurements

    tissue concentration
    8 to 448 micrograms/g wet weight
    rat tissues

    Source sentences

    Summary
    RIA values for thymosin beta 4 in rat tissues reveal levels ranging between 8 and 448 micrograms/g wet weight.

    This result measures the body's own Thymosin beta-4 (human). Nobody was given the peptide. It is not evidence about taking it.

  2. 02AnimalEndogenous levelAnimal study (in vivo)Other

    Thymosin beta‑4 levels were highest in rat spleen and relatively high in thymus, lung and nasal epithelium.

    In plain wordsIn rats, the body's own thymosin beta‑4 was highest in spleen and also common in thymus, lung and nose lining.

    Outcome
    Not applicableThymosin beta 4 in spleen, thymus, lung and nasal epithelium
    Study

    ratn: not reported in source

    rat tissues
    Outcome group
    Endogenous peptide levels · Whole body

    Source sentences

    Summary
    Highest levels are observed in spleen, although the peptide is also relatively abundant in thymus, lung, and nasal epithelium.

    This result measures the body's own Thymosin beta-4 (human). Nobody was given the peptide. It is not evidence about taking it.

  3. 03AnimalEndogenous levelAnimal study (in vivo)Other

    Rat brain, kidney, liver and testis contained only 10 to 20% of the spleen concentration of thymosin beta‑4, and heart and muscle only 5 to 10%.

    In plain wordsIn rats, other tissues held 5 to 20% of spleen's level of the body's own thymosin beta‑4.

    Outcome
    Not applicableThymosin beta 4 in brain, kidney, liver, testis, heart and muscle relative to spleen
    Study

    ratn: not reported in source

    rat tissues
    Comparator
    spleen
    Outcome group
    Endogenous peptide levels · Whole body

    Measurements

    concentration relative to spleen
    10 to 20%
    brain, kidney, liver and testis
    concentration relative to spleen
    5 to 10%
    heart and muscle

    Source sentences

    Summary
    Brain, kidney, liver and testis contain only 10 to 20% the concentration of thymosin beta 4 seen in spleen, whereas heart and muscle contain only 5 to 10% that of spleen.

    This result measures the body's own Thymosin beta-4 (human). Nobody was given the peptide. It is not evidence about taking it.

Studies that did not test the peptide alone4

In this study, Thymosin beta-4 (human) 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 Thymosin beta-4 (human).

  1. 04AnimalNot a test of Thymosin beta-4 (human) aloneAnimal study (in vivo)Other

    Thymosin beta‑4 antibodies were raised in rabbits and a radioimmunoassay for thymosin beta‑4 was established with tritiated thymosin beta‑4.

    In plain wordsIn rabbits, researchers raised antibodies to thymosin beta‑4 and built a test that measures it.

    Outcome
    Not applicableProduction of thymosin beta 4 antibodies and radioimmunoassay
    Study

    rabbitn: not reported in source

    rabbits immunized with peptide conjugated to keyhole limpet hemocyanin
    Outcome group
    Peptide structure and chemistry · Pharmacology

    Source sentences

    Summary
    Thymosin beta 4 antibodies have been raised in rabbits by conjugating the peptide to keyhole limpet hemocyanin, and a radioimmunoassay for thymosin beta 4 has been established utilizing tritiated thymosin beta 4 as binding ligand.

    In this study, Thymosin beta-4 (human) 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 Thymosin beta-4 (human).

  2. 05LabNot a test of Thymosin beta-4 (human) aloneIn vitro (cells)Other

    The thymosin beta‑4 antiserum precipitated biosynthetically labeled thymosin beta‑4 from cultured rat peritoneal macrophages.

    In plain wordsIn cells, the thymosin beta‑4 antiserum pulled out labeled thymosin beta‑4 made by cultured rat macrophages.

    Outcome
    Not applicableAntiserum precipitation of labeled thymosin beta 4 from macrophages
    Study

    ratn: not reported in source

    cultured rat peritoneal macrophages
    Outcome group
    Peptide structure and chemistry · Pharmacology

    Source sentences

    Summary
    The antiserum will precipitate biosynthetically labeled beta 4 from cultured rat peritoneal macrophage.

    In this study, Thymosin beta-4 (human) 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 Thymosin beta-4 (human).

  3. 06LabNot a test of Thymosin beta-4 (human) aloneIn vitro (cell-free)Other

    The thymosin beta‑4 molecule seemingly bears two major epitopes, between amino acid residues 1-8 and 22-32.

    In plain wordsIn lab tests, thymosin beta‑4 seemed to carry two main antibody-binding regions, at residues 1-8 and 22-32.

    Outcome
    Not applicableEpitopes of thymosin beta 4
    Study

    n: not reported in source

    Outcome group
    Peptide structure and chemistry · Pharmacology

    Source sentences

    Summary
    The thymosin beta 4 molecule seemingly bears two major epitopes that lie between amino acid residues 1-8 and 22-32.

    In this study, Thymosin beta-4 (human) 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 Thymosin beta-4 (human).

  4. 07LabNot a test of Thymosin beta-4 (human) aloneIn vitro (cell-free)Other

    The thymosin beta‑4 antiserum did not cross-react with other unrelated peptides.

    In plain wordsIn lab tests, the thymosin beta‑4 antiserum did not react with other unrelated peptides.

    Outcome
    No significant changeAntiserum cross-reactivity
    Study

    n: not reported in source

    Outcome group
    Peptide structure and chemistry · Pharmacology

    Source sentences

    Summary
    The antiserum does not cross-react with other unrelated peptides.

    In this study, Thymosin beta-4 (human) 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 Thymosin beta-4 (human).

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, 01:52 UTC

    Study results updated

  2. Version 1

    12 Oct 2026, 18:17 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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