Skip to content

Study · Measured the body's own peptide · 2013

6 results

Increased thymosin β4 levels in the serum and SF of knee osteoarthritis patients correlate with disease severity.

Wei M, Duan D, Liu Y, Wang Z, Li Z

Regulatory peptides28 Jun 2013Cited by 12 (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 study6

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

Natural levels measured6

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 adults, patients with knee osteoarthritis had higher serum levels of the body's own Tβ4 than healthy controls.

    In plain wordsAdults with knee osteoarthritis had higher levels of the body's own Tβ4 in blood than healthy adults.

    Outcome
    IncreaseSerum Tβ4 in knee OA versus healthy controls
    Study

    n = 368

    Comparator
    Healthy controls
    Outcome group
    Endogenous peptide levels · Musculoskeletal

    Source sentences

    Summary
    The knee OA patients had higher levels of serum thymosin β4 than the healthy controls.
    1 context sentence
    Summary · context
    This study consisted of 216 patients with knee OA and 152 healthy controls.

    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

    In patients with knee osteoarthritis, serum Tβ4 levels correlated significantly with radiographic disease severity by KL grade.

    In plain wordsIn people with knee osteoarthritis, higher levels of the body's own Tβ4 in blood were linked to more severe X-ray grades.

    Outcome
    IncreaseCorrelation of serum Tβ4 with KL grade
    Study

    n = 216

    Outcome group
    Endogenous peptide levels · Musculoskeletal

    Source sentences

    Summary
    Thymosin β4 levels in the serum and SF of knee OA patients were significantly correlated with disease severity according to KL grading criteria.
    1 context sentence
    Summary · context
    This study consisted of 216 patients with knee OA and 152 healthy controls.

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

  3. 03HumanEndogenous levelObservational studyOther

    In patients with knee osteoarthritis, serum Tβ4 was significantly higher in KL grade 4 than in KL grades 2 and 3.

    In plain wordsIn people with knee osteoarthritis, the body's own Tβ4 in blood was higher in the most severe X-ray grade than in milder grades.

    Outcome
    IncreaseSerum Tβ4 by Kellgren-Lawrence grade (grade 4 versus grades 2 and 3)
    Study

    n: not reported in source

    Comparator
    KL grades 2 and 3
    Outcome group
    Endogenous peptide levels · Musculoskeletal

    Source sentences

    Summary
    Knee OA patients with KL grade 4 showed significantly elevated thymosin β4 levels in the serum and SF compared with those with KL grades 2 and 3.
    1 context sentence
    Summary · context
    This study consisted of 216 patients with knee OA and 152 healthy controls.

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

  4. 04HumanEndogenous levelObservational studyOther

    In patients with knee osteoarthritis, synovial fluid Tβ4 was significantly higher in KL grade 4 than in KL grades 2 and 3.

    In plain wordsIn people with knee osteoarthritis, the body's own Tβ4 in joint fluid was higher in the most severe X-ray grade than in milder grades.

    Outcome
    IncreaseSynovial fluid Tβ4 by Kellgren-Lawrence grade (grade 4 versus grades 2 and 3)
    Study

    n: not reported in source

    Comparator
    KL grades 2 and 3
    Outcome group
    Endogenous peptide levels · Musculoskeletal

    Source sentences

    Summary
    Knee OA patients with KL grade 4 showed significantly elevated thymosin β4 levels in the serum and SF compared with those with KL grades 2 and 3.
    1 context sentence
    Summary · context
    This study consisted of 216 patients with knee OA and 152 healthy controls.

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

  5. 05HumanEndogenous levelObservational studyOther

    In patients with knee osteoarthritis, synovial fluid Tβ4 was significantly higher in KL grade 3 than in KL grade 2.

    In plain wordsIn people with knee osteoarthritis, the body's own Tβ4 in joint fluid was higher in grade 3 than in grade 2.

    Outcome
    IncreaseSynovial fluid Tβ4, KL grade 3 versus grade 2
    Study

    n: not reported in source

    Comparator
    KL grade 2
    Outcome group
    Endogenous peptide levels · Musculoskeletal

    Source sentences

    Summary
    Knee OA patients with KL grade 3 had significantly higher SF levels of thymosin β4 than those with KL grade 2.
    1 context sentence
    Summary · context
    This study consisted of 216 patients with knee OA and 152 healthy controls.

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

  6. 06HumanEndogenous levelObservational studyOther

    In patients with knee osteoarthritis, synovial fluid Tβ4 levels correlated significantly with radiographic disease severity by KL grade.

    In plain wordsIn people with knee osteoarthritis, higher levels of the body's own Tβ4 in joint fluid were linked to more severe X-ray grades.

    Outcome
    IncreaseCorrelation of synovial fluid Tβ4 with KL grade
    Study

    n: not reported in source

    Outcome group
    Endogenous peptide levels · Musculoskeletal

    Source sentences

    Summary
    Thymosin β4 levels in the serum and SF of knee OA patients were significantly correlated with disease severity according to KL grading criteria.
    1 context sentence
    Summary · context
    This study consisted of 216 patients with knee OA and 152 healthy controls.

    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.