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Study · Measured the body's own peptide · 1996

3 results

An immunoradiometric assay for thymosin alpha 1.

Yokoi H, Saitoh T, Nakazawa Y, Ohno H

Journal of immunoassay1 Feb 1996Cited by 2 (Europe PMC)

PMID8926308 (opens in a new tab)DOI10.1080/01971529608005780 (opens in a new tab)PepBankPUB-08926308
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 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. 01HumanEndogenous levelObservational studyOther

    In healthy subjects, mean plasma thymosin alpha‑1 at ages 0 to 3 years was approximately five-fold higher than at higher ages.

    In plain wordsIn healthy people, the body's own thymosin alpha‑1 in blood was about five times higher at ages 0 to 3 than at older ages.

    Peptide
    Thymosin alpha-1
    Outcome
    IncreasePlasma thymosin alpha 1 by age
    Study

    n: not reported in source

    Comparator
    Healthy subjects of higher ages
    Outcome group
    Aging markers · Immune and inflammation

    Source sentences

    Summary
    The mean values of thymosin alpha 1 in plasma of healthy subject, ranging in age from 0 to 3 years was approximately five fold higher than that of higher ages.

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

Studies that did not test the peptide alone2

In this study, Thymosin alpha-1 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 alpha-1.

  1. 02LabNot a test of Thymosin alpha-1 aloneIn vitro (cell-free)Other

    An immunoradiometric assay for thymosin alpha‑1 had a minimal detection limit of approximately 1.9 pg/ml.

    In plain wordsIn lab tests, a new assay could detect thymosin alpha‑1 down to about 1.9 pg/ml.

    Peptide
    Thymosin alpha-1
    Outcome
    Not applicableAssay minimal detection limit
    Study

    n: not reported in source

    immunoradiometric assay
    Outcome group
    Pharmacokinetics · Pharmacology

    Measurements

    Minimal detection limit
    ≈ 1.9 pg/ml
    immunoradiometric assay

    Source sentences

    Summary
    The minimal detection limit of this assay system was approximately 1.9 pg/ml.
    1 context sentence
    Summary · context
    An Immunoradiometric assay for thymosin alpha 1(1-28) was developed using a monoclonal and a polyclonal antiserum which were raised against synthetic thymosin alpha 1(1-28) and thymosin alpha 1(16-28), respectively.

    In this study, Thymosin alpha-1 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 alpha-1.

  2. 03LabNot a test of Thymosin alpha-1 aloneIn vitro (cell-free)Other

    HPLC analysis of healthy-subject plasma showed a single immunoreactive form that eluted with the same retention time as synthetic thymosin alpha‑1.

    In plain wordsIn lab tests, thymosin alpha‑1 found in healthy plasma by the assay matched synthetic thymosin alpha‑1 on HPLC.

    Peptide
    Thymosin alpha-1
    Outcome
    Not applicableHPLC identity of immunoreactive plasma thymosin alpha 1
    Study

    n: not reported in source

    HPLC analysis of plasma
    Outcome group
    Receptor activity and mechanism · Pharmacology

    Source sentences

    Summary
    HPLC analysis of plasma of a healthy subjects revealed a single immunoreactive form which eluted with the same retention time as that of synthetic thymosin alpha 1.

    In this study, Thymosin alpha-1 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 alpha-1.

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.

Publication types

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