Prothymosin alpha in human blood.

Panneerselvam C, Haritos AA, Caldarella J, Horecker BL

Proceedings of the National Academy of Sciences of the United States of America1 Jul 1987Cited by 38 (Europe PMC)

PMID3474615PMCIDPMC305110DOI10.1073/pnas.84.13.4465PepBankPUB-03474615

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 study2

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.

01HumanEndogenous levelObservational studyOther
In human blood, less than 10% of the thymosin alpha‑1 cross-reacting material was recovered as lower molecular weight thymosin alpha‑1-like peptides.
In plain wordsIn human blood, only a small share of the body's own material found by the thymosin alpha‑1 test was thymosin alpha‑1-like.
Peptide
Thymosin alpha-1
Outcome
Not applicableThymosin alpha 1-like peptides in human blood
Study
n: not reported in source
Outcome group
Immune response · Immune and inflammation
Measurements
Share of cross-reacting material
< 10%
lower molecular weight thymosin alpha 1-like peptides
Source sentences
Summary
A small quantity (less than 10%) of the total cross-reacting material was recovered in fractions corresponding to lower molecular weight thymosin alpha 1-like peptides.
This result measures the body's own Thymosin alpha-1. Nobody was given the peptide. It is not evidence about taking it.
Report a problemFND-0347461501

Studies that did not test the peptide alone1

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.

02HumanNot a test of Thymosin alpha-1 aloneObservational studyOther
In human blood, the thymosin alpha‑1 radioimmunoassay detected cross-reacting material (mainly prothymosin alpha) of 11-14 pmol/ml, expressed as thymosin alpha‑1 equivalents.
In plain wordsIn human blood, the thymosin alpha‑1 test detected mostly a different peptide, prothymosin alpha.
Peptide
Thymosin alpha-1
Outcome
Not applicableTotal cross-reacting material in the thymosin alpha 1 radioimmunoassay
Study
n: not reported in source
Outcome group
Immune response · Immune and inflammation
Measurements
Cross-reacting material
11 to 14 pmol/ml
human blood, thymosin alpha 1 equivalents
Source sentences
Summary
The total quantity of cross-reacting material detected in human blood, expressed as thymosin alpha 1 equivalents, was 11-14 pmol/ml (approximately 90% was recovered in the leukocyte fraction, approximately 10% was in the plasma fraction, and 1-2% was in the erythrocyte fraction).
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.
Report a problemFND-0347461502

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.

Version 3Current
10 Oct 2026, 08:55 UTC
Study results updated
Version 2
9 Oct 2026, 03:03 UTC
Study data updated · source update from Europe PMC
Version 1
9 Oct 2026, 03:02 UTC
First added · source update from Europe PMC