Evidence map›Paper›PMID 34091792›Full record

ArticleClinical oral investigations2021

Evaluation of heat shock protein 70 and toll-like receptor 4 expression in gingival crevicular fluid in response to orthodontic forces.

Erdal Bozkaya, Nehir Canigur Bavbek, Sila Cagri Isler, Ahu Uraz, Rahsan Ilikci Sagkan, Baris Uzunok, Sema Yuksel

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Article in Clinical oral investigations, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.3field-weighted citation impact, top 44% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
  3. Impact of phosphorylation of heat shock protein 27 on the expression profile of periodontal ligament fibroblasts during mechanical strain.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2023
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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

7 authors at 2 institutions in 1 country.

Erdal BozkayaDepartment of Orthodontics, Faculty of Dentistry, Gazi University, 8 Cd. 82.Sk. No 4 Emek, Ankara, Turkey. erdalbozkaya@gmail.com.ORCID http://orcid.org/0000-0001-7341-9361
Nehir Canigur BavbekDepartment of Orthodontics, Faculty of Dentistry, Gazi University, 8 Cd. 82.Sk. No 4 Emek, Ankara, Turkey.
Sila Cagri IslerDepartment of Periodontology, Faculty of Dentistry, Gazi University, Ankara, Turkey.
Ahu UrazDepartment of Periodontology, Faculty of Dentistry, Gazi University, Ankara, Turkey.
Rahsan Ilikci SagkanDepartment of Medical Biology, School of Medicine, Usak University, Usak, Turkey.
Baris UzunokDepartment of Physiology, School of Medicine, Usak University, Usak, Turkey.
Sema YukselDepartment of Orthodontics, Faculty of Dentistry, Gazi University, 8 Cd. 82.Sk. No 4 Emek, Ankara, Turkey.
Gazi University · TRUsak University · TR

Funding

Gazi Üniversitesi 03/2018-13
6 · The paper itself

Abstract

objectivesThe aim of this study was to assess the concentrations of heat shock protein 70 (HSP70) and toll-like receptor 4 (TLR4) during orthodontic tooth movement and to compare their levels with interleukin-1β (IL-1β), a well-known proinflammatory biomarker. MATERIALS AND

methodsThis study consisted of 20 patients (8 males, 12 females; mean age 14.75 ± 2.34 years) who needed maxillary premolar extraction and segmental canine distalization. Concentrations of HSP70, TLR4, and IL-1β were examined before extraction (T1), at the 1st (T2), 4th (T3), 7th (T4), 14th (T5), and 30th (T6) days of canine retraction by enzyme-linked immunosorbent assay analysis of gingival crevicular fluid samples. Statistical analyses were performed with repeated measure ANOVA and Spearman's rank correlation coefficient analysis (p < 0.05).

resultsHSP70 increased gradually from T1 to T6 and showed significant differences between T1-T6 and T2-T6 (T1:3.28 ± 0.92 ng/ml; T2:3.72 ± 0.66 ng/ml; T6:9.35 ± 2.45 ng/ml). The lowest TLR4 concentration was at T1, peaked at T3 and remained constant afterwards with significant differences between T1-T3, T1-T4, and T1-T6 (T1:0.71 ± 0.02 pg/ml; T3:1.04 ± 0.11 pg/ml; T4:0.95 ± 0.06 pg/ml; T6:1.00 ± 0.07 pg/ml). IL-1β increased from T1 to T6 with significant differences between T1-T4, T1-T5, and T1-T6 (T1:55.71 ± 5.48 pg/ml; T4:100.11 ± 16.92 pg/ml; T5:103.71 ± 23.19 pg/ml; T6:125.12 ± 22.04 pg/ml). The increase in HSP70 and TLR4 from T2-T3 showed a significant correlation (r = 0.598; p = 0.005).

conclusionsThe increased levels of HSP70, TLR4, and IL-1β show the contribution of these mediators to the inflammatory response from the early stages of orthodontic tooth movement. CLINICAL RELEVANCE: The regulation of HSP70, TLR4, and/or IL-1β secretion during orthodontic force application could provide alterations for desired optimal tooth movement.

Indexed as

Gingival Crevicular FluidToll-Like Receptor 4AdolescentBicuspidChildFemaleHSP70 Heat-Shock ProteinsHumansMaleTooth Movement TechniquesHSP70 Heat-Shock ProteinsToll-Like Receptor 4Gingival crevicular fluidHeat shock protein 70Interleukin-1betaOrthodontic tooth movementToll-like receptor 4

Identifiers

PMID34091792
OpenAlexW3171193711

What OpenQuestion holds

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Registered trials

None linked

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.