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Study · Measured the body's own peptide · 1988

5 results

Enzyme immunoassay measurement of thymosin beta 4 in human serum.

Weller FE, Mutchnick MG, Goldstein AL, Naylor PH

Journal of biological response modifiers1 Feb 1988Cited by 16 (Europe PMC)

PMID3286825 (opens in a new tab)PepBankPUB-03286825
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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 study5

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

Natural levels measured2

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. 01HumanEndogenous levelObservational studyOther

    In 142 healthy adult volunteers, human serum thymosin beta‑4 levels ranged from 3 to 82 ng/ml.

    In plain wordsIn healthy adults, the body's own thymosin beta‑4 in blood ranged from 3 to 82 ng/ml.

    Peptide
    Thymosin beta-4 (human)
    Outcome
    Not applicableSerum thymosin beta 4 level in healthy adults
    Study

    n = 142

    Outcome group
    Endogenous peptide levels · Whole body

    Measurements

    serum level
    3 to 82 ng/ml
    healthy adult volunteers

    Source sentences

    Summary
    Human serum levels range from 3 to 82 ng/ml in 142 healthy adult human volunteers.
    1 context sentence
    Summary · context
    An enzyme immunoassay (EIA) for measurement of human serum thymosin beta 4 is described.

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

  2. 02HumanEndogenous levelObservational studyOther

    Newborn cord serum levels of thymosin beta‑4 were lower than adult levels.

    In plain wordsIn newborns, the body's own thymosin beta‑4 in cord blood was lower than in adults.

    Peptide
    Thymosin beta-4 (human)
    Outcome
    DecreaseCord serum thymosin beta 4 level in newborns versus adults
    Study

    n: not reported in source

    Comparator
    Adult serum levels
    Outcome group
    Endogenous peptide levels · Whole body

    Source sentences

    Summary
    Newborn cord serum levels of thymosin beta 4 are lower than in adults.
    1 context sentence
    Summary · context
    An enzyme immunoassay (EIA) for measurement of human serum thymosin beta 4 is described.

    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 alone3

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. 03LabNot a test of Thymosin beta-4 (human) aloneIn vitro (cell-free)Other

    The enzyme immunoassay detected as little as 2.5 ng/ml thymosin beta‑4 in serum.

    In plain wordsIn lab tests, the assay could detect thymosin beta‑4 in serum at 2.5 ng/ml.

    Peptide
    Thymosin beta-4 (human)
    Outcome
    Not applicableDetection limit of the thymosin beta 4 enzyme immunoassay
    Study

    n: not reported in source

    enzyme immunoassay
    Outcome group
    Analytical methods and detection · Pharmacology

    Measurements

    detection limit
    2.5 ng/ml
    serum

    Source sentences

    Summary
    The EIA is both sensitive and accurate and is capable of detecting as little as 2.5 ng/ml thymosin beta 4 in serum.
    1 context sentence
    Summary · context
    An enzyme immunoassay (EIA) for measurement of human serum thymosin beta 4 is described.

    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. 04LabNot a test of Thymosin beta-4 (human) aloneIn vitro (cell-free)Other

    The enzyme immunoassay showed no cross-reactivity with common serum proteins or other putative thymic hormones.

    In plain wordsIn lab tests, the assay did not react with common serum proteins or other thymic hormones.

    Peptide
    Thymosin beta-4 (human)
    Outcome
    No significant changeCross-reactivity of the assay with serum proteins and thymic hormones
    Study

    n: not reported in source

    enzyme immunoassay
    Outcome group
    Analytical methods and detection · Pharmacology

    Source sentences

    Summary
    No cross-reactivity was observed with common serum proteins or other putative thymic hormones.
    1 context sentence
    Summary · context
    An enzyme immunoassay (EIA) for measurement of human serum thymosin beta 4 is described.

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

    HPLC of serum samples showed a single thymosin beta‑4 peak that corresponds to the authentic thymosin beta‑4 peak in the standard.

    In plain wordsIn lab tests, serum samples gave one thymosin beta‑4 peak that matched the standard.

    Peptide
    Thymosin beta-4 (human)
    Outcome
    Not applicableHPLC check of serum thymosin beta 4
    Study

    n: not reported in source

    HPLC of serum samples
    Outcome group
    Analytical methods and detection · Pharmacology

    Source sentences

    Summary
    High-performance liquid chromatography of serum samples reveals a single thymosin beta 4 peak that corresponds to the authentic thymosin beta 4 peak in the standard.
    1 context sentence
    Summary · context
    An enzyme immunoassay (EIA) for measurement of human serum thymosin beta 4 is described.

    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.

Publication types

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