Skip to content

Study · Measured the body's own peptide · 2016

2 results

The Hidden Function of Vitamin D.

Sibaii H, El-Zayat SR, El-Shaheed AA, Mahfouz NN, Sallam SF, El Azma MH

Open access Macedonian journal of medical sciences30 Nov 2016Cited by 6 (Europe PMC)

PMID28028396 (opens in a new tab)PMCIDPMC5175504 (opens in a new tab)DOI10.3889/oamjms.2016.134 (opens in a new tab)PepBankPUB-28028396
Read at sourcePubMedAsk about this study
Jump to 2 results

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: CC BY-NC. Results still quote short attributed sentences.

Results from this study2

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

    Subjects with sufficient vitamin D had higher thymosin β4 levels than subjects with severe vitamin D deficiency (P = 0.005).

    In plain wordsPeople with enough vitamin D had higher levels of the body's own thymosin β4 than people with severe deficiency.

    Peptide
    Thymosin beta-4 (human)
    Outcome
    IncreaseSerum Tβ4 by vitamin D status
    Study

    n = 35

    Comparator
    Vitamin D deficient group
    Outcome group
    Immune response · Immune and inflammation

    Source sentences

    Summary
    There were significant differences between the two groups in the concentration levels of thymosin β4, as the group 1 has shown higher levels (P = 0.005).
    2 context sentences
    Summary · context
    The study was carried out on 35 subjects, screened for 25-hydroxy vitamin D[25 (OH) D] using ELISA method and they were divided into two groups: Group 1 consists of 10 healthy subjects with sufficient vit.
    Summary · context
    Group 2 consists of 25 subjects suffering, severely, from vitamin D deficiency at level < 11.325 ng/ml.

    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

    Vitamin D level was positively correlated with thymosin β4 level (r = 0.719; P = 0.001).

    In plain wordsHigher vitamin D was linked to higher levels of the body's own thymosin β4.

    Peptide
    Thymosin beta-4 (human)
    Outcome
    IncreaseCorrelation of vitamin D with Tβ4
    Study

    n = 35

    Outcome group
    Immune response · Immune and inflammation

    Measurements

    Correlation coefficient r
    0.719 r
    vitamin D vs thymosin β4

    Source sentences

    Summary
    At the same time, a significant positive correlation has been observed between vitamin D, thymosin β4, and CD4 at (r = 0.719; P = 0.001), and (r = 0.559, P = 0.001) respectively.
    2 context sentences
    Summary · context
    The study was carried out on 35 subjects, screened for 25-hydroxy vitamin D[25 (OH) D] using ELISA method and they were divided into two groups: Group 1 consists of 10 healthy subjects with sufficient vit.
    Summary · context
    Group 2 consists of 25 subjects suffering, severely, from vitamin D deficiency at level < 11.325 ng/ml.

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

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.

PepBank is a research reference. Talk to a doctor before you use any peptide.