Evidence map›Paper›PMID 33661446›Full record

ArticleClinical oral investigations2021

Lubricating properties of chewing stimulated whole saliva from patients suffering from xerostomia.

Jeroen Vinke, Marijn Oude Elberink, Monique A Stokman, Frans G M Kroese, Kamran Nazmi, Floris J Bikker, Henny C van der Mei, Arjan Vissink, Prashant K Sharma

Open access · hybridAbstract read
In one paragraph

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 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

5 citing papers in PubMed, 18 citations in OpenAlex.

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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

9 authors at 2 institutions in 1 country.

Jeroen VinkeDepartment of Biomedical Engineering, University of Groningen and University Medical Center Groningen, Antonius Deusinglaan 1, 9713AV, Groningen, The Netherlands.
Marijn Oude ElberinkDepartment of Biomedical Engineering, University of Groningen and University Medical Center Groningen, Antonius Deusinglaan 1, 9713AV, Groningen, The Netherlands.
Monique A StokmanDepartment of Radiation Oncology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands.
Frans G M KroeseDepartment of Rheumatology and Clinical Immunology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands.
Kamran NazmiDepartment of Oral Biochemistry, Academic Centre for Dentistry Amsterdam, Free University and University of Amsterdam, Amsterdam, The Netherlands.
Floris J BikkerDepartment of Oral Biochemistry, Academic Centre for Dentistry Amsterdam, Free University and University of Amsterdam, Amsterdam, The Netherlands.
Henny C van der MeiDepartment of Biomedical Engineering, University of Groningen and University Medical Center Groningen, Antonius Deusinglaan 1, 9713AV, Groningen, The Netherlands.
Arjan VissinkDepartment of Oral and Maxillofacial Surgery, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands.
Prashant K SharmaDepartment of Biomedical Engineering, University of Groningen and University Medical Center Groningen, Antonius Deusinglaan 1, 9713AV, Groningen, The Netherlands. p.k.sharma@umcg.nl.ORCID http://orcid.org/0000-0002-8342-8939
University Medical Center Groningen · NLAcademic Center for Dentistry Amsterdam · NL

Funding

ZonMw 91112026
6 · The paper itself

Abstract

objectivesThe study aimed to quantify the lubricating properties of chewing stimulated whole saliva from healthy controls (n = 22), from patients suffering from primary Sjögren's syndrome (n = 37) and from patients undergoing head-and-neck radiotherapy (n = 34). MATERIALS AND

methodsAll participants had to complete the Xerostomia Inventory questionnaire to score dry mouth sensation. Lubrication was measured using an ex vivo tongue-enamel friction system in terms of Relief and Relief period. MUC5b and total protein concentrations of the saliva samples were measured by an enzyme-linked immunosorbent assay and a bicinchoninic acid assay, respectively.

resultsRelief of Sjögren's patients' saliva and post-irradiation patients' saliva was similar compared with healthy controls, but saliva from post-irradiation patients lubricated significantly better than saliva from Sjögren's patients. The Relief period was similar between the three groups. The Relief and Relief period were higher for saliva samples post-irradiation compared to pre-irradiation. MUC5b and total protein concentrations were comparable in all groups. MUC5b and total protein output were significantly lower in patients subjected to radiotherapy compared to saliva from healthy controls and pre-irradiation patients. MUC5b concentrations positively correlated with lubricating properties of post-irradiation patient saliva.

conclusionsThe lubricating properties of patient saliva were not any worse than healthy controls. Lower flow rate leads to lower availability of saliva in the oral cavity and decreases the overall output of protein and MUC5b, which might result in an insufficient replenishing of the mucosal salivary film. CLINICAL RELEVANCE: An insufficient replenishing might underlie the sensation of a dry mouth and loss of oral function.

Indexed as

Sjogren's SyndromeXerostomiaHumansMasticationMucin-5BSalivaMucin-5BOral tribologyRadiotherapySalivary lubricationSjögren’s syndrome

Identifiers

PMID33661446
PMCPMC8310523
OpenAlexW3135742420

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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.