Evidence map›Paper›PMID 35061744›Full record

ArticlePloS one2022

TGF-β1 in plasma and cerebrospinal fluid can be used as a biological indicator of chronic pain in patients with osteoarthritis.

Yen-Chin Liu, Hung-Tsung Hsiao, Jeffrey Chi-Fei Wang, Tzu-Cheng Wen, Shiou-Lan Chen

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.2field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 28 citations in OpenAlex.

  1. Pain Hypersensitivity in a Mouse Model of Marfan Syndrome.Antioxidants (Basel, Switzerland) · 2026
    Article
  2. Association of theInternational journal of molecular sciences · 2025
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  3. Review
  4. The simultaneous activation of μ- and δ-opioid receptors by (-)-2Current research in pharmacology and drug discovery · 2025
    Article
  5. Observational
  6. Article
  7. Article
  8. Article
  9. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 4 institutions in 1 country.

Yen-Chin LiuDepartment of Anesthesiology, Kaohsiung Medical University (KMU) Hospital, KMU, Kaohsiung, Taiwan.
Hung-Tsung HsiaoDepartment of Anesthesiology, National Cheng Kung University Hospital (NCKU), College of Medicine, NCKU, Tainan, Taiwan.
Jeffrey Chi-Fei WangDepartment of Anesthesiology, National Cheng Kung University Hospital (NCKU), College of Medicine, NCKU, Tainan, Taiwan.
Tzu-Cheng WenSchool of Medicine, College of Medicine, NCKU, Tainan, Taiwan.
Shiou-Lan ChenGraduate Institute of Medicine & M.Sc. Program in Tropical Medicine, College of Medicine, KMU, Kaohsiung, Taiwan.ORCID 0000-0003-3995-0276
National Cheng Kung University Hospital · TWKaohsiung Medical University · TWNational Pingtung University · TWNational University of Tainan · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPrevious studies have demonstrated that cytokines, transforming growth factor (TGF-β1), and brain-derived neurotrophic factor (BDNF) can impact the intensity of pain in rodents. However, the roles of cytokines, TGF-β1 and BDNF in humans with chronic pain in osteoarthritis remains unclear, and no comparison between plasma and central cerebral spinal fluid (CSF) has been conducted.

methodsPatients with osteoarthritis who were scheduled to receive spinal anesthesia were enrolled. The intensity of pain was evaluated with a visual analogue scale (VAS). In addition, patients with genitourinary system (GU) diseases and without obvious pain (VAS 0-1) were included as a comparison (control) group. The levels of TGF-β1, BDNF, tumor necrosis factor-α (TNF-α), and interleukin (IL)-8 within the CSF and plasma were collected and evaluated before surgery.

resultsThe plasma and CSF TGF-β1 levels were significantly lower in the osteoarthritis patients with pain (VAS ≥ 3) than in the GU control patients. Downregulation of plasma BDNF was also found in osteoarthritis patients with pain. The Spearman correlation analysis showed that the VAS pain scores were significantly negatively correlated with the levels of TGF-β1 in the CSF of patients with osteoarthritis. However, there was no significant correlations between the pain scores and the levels of BDNF, TNF-α, and IL-8 in either the CSF or plasma.

conclusionsTGF-β1 but not BDNF, TNF-α, or IL-8 may be an important biological indicator in the CSF of osteoarthritis patients with chronic pain.

Indexed as

AgedBiomarkersBrain-Derived Neurotrophic FactorChronic PainFemaleHumansInterleukin-8MaleMiddle AgedOsteoarthritisSeverity of Illness IndexTransforming Growth Factor beta1Urogenital DiseasesBiomarkersBrain-Derived Neurotrophic FactorInterleukin-8Transforming Growth Factor beta1

Identifiers

PMID35061744
PMCPMC8782532
OpenAlexW4205831188

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.