Evidence map›Paper›PMID 31758257›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2020

Expression and activity of hyaluronidases HYAL-1, HYAL-2 and HYAL-3 in the human intervertebral disc.

Olga Krupkova, Helen Greutert, Norbert Boos, Johannes Lemcke, Thomas Liebscher, Karin Wuertz-Kozak

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In one paragraph

Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

12 citing papers in PubMed, 23 citations in OpenAlex.

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  8. Dieckol Isolated fromMarine drugs · 2022
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  11. Collagen- and hyaluronic acid-based hydrogels and their biomedical applications.Materials science & engineering. R, Reports : a review journal · 2021
    Article
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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

6 authors at 3 institutions in 3 countries.

Olga KrupkovaInstitute for Biomechanics, ETH Zurich, Hoenggerbergring 64, 8093, Zurich, Switzerland.
Helen GreutertInstitute for Biomechanics, ETH Zurich, Hoenggerbergring 64, 8093, Zurich, Switzerland.
Norbert BoosProdorso Spine Center, Walchestrasse 15, 8006, Zurich, Switzerland.
Johannes LemckeTreatment Centre for Spinal Cord Injuries, Trauma Hospital Berlin, Warener Str. 7, 12683, Berlin, Germany.
Thomas LiebscherTreatment Centre for Spinal Cord Injuries, Trauma Hospital Berlin, Warener Str. 7, 12683, Berlin, Germany.
Karin Wuertz-KozakInstitute for Biomechanics, ETH Zurich, Hoenggerbergring 64, 8093, Zurich, Switzerland. kwbme@rit.edu.ORCID 0000-0002-3281-4629
Diagnostic and Treatment Centre Berlin · DEETH Zurich · CHRochester Institute of Technology · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeHyaluronic acid plays an essential role in water retention of the intervertebral disc (IVD) and thus provides flexibility and shock absorbance in the spine. Hyaluronic acid gets degraded by hyaluronidases (HYALs), and some of the resulting fragments were previously shown to induce an inflammatory and catabolic response in human IVD cells. However, no data currently exist on the expression and activity of HYALs in IVD health and disease.

methodsGene expression, protein expression and activity of HYALs were determined in human IVD biopsies with different degrees of degeneration (n = 50 total). Furthermore, freshly isolated human IVD cells (n = 23 total) were stimulated with IL-1β, TNF-α or H

resultsGene expression of HYAL-1 and protein expression of HYAL-2 significantly increased in moderate/severe disc samples when compared to samples with no or low IVD degeneration. HYAL activity was not significantly increased due to high donor-donor variation, but seemed overall higher in the moderate/severe group. An inflammatory environment, as seen during IVD disease, did not affect HYAL-1, HYAL-2 or HYAL-3 expression, whereas exposure to oxidative stress (100 µM H

conclusionAlthough HYAL-1, HYAL-2 and HYAL-3 are all expressed in the IVD, HYAL-2 seems to have the highest pathophysiological relevance. Nonetheless, further studies will be needed to comprehensively elucidate its significance and to determine its potential as a therapeutic target. These slides can be retrieved under Electronic Supplementary Material.

Indexed as

HyaluronoglucosaminidaseIntervertebral DiscIntervertebral Disc DegenerationCell Adhesion MoleculesCells, CulturedGPI-Linked ProteinsHumansHydrogen PeroxideCell Adhesion MoleculesGPI-Linked ProteinsHYAL1 protein, humanHyal2 protein, humanhyaluronidase PH-20HyaluronoglucosaminidaseHydrogen PeroxideDegenerative disc diseaseExtracellular matrixGlycosaminoglycanHyaluronic acidInflammationOxidative stress

Identifiers

PMID31758257
OpenAlexW2990165729

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.