Evidence map›Paper›PMID 25958268›Full record

ArticleDental materials : official publication of the Academy of Dental Materials2015

Molecular weight and galloylation affect grape seed extract constituents' ability to cross-link dentin collagen in clinically relevant time.

Yi Liu, Xinyan Bai, Shaohua Li, Ying Liu, Andrew Keightley, Yong Wang

Abstract read
In one paragraph

Article in Dental materials : official publication of the Academy of Dental Materials, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Distinct effects of polyphenols and solvents on dentin collagen crosslinking interactions and biostability.Dental materials : official publication of the Academy of Dental Materials · 2021
    Article
  10. Article
  11. Article
  12. Article
  13. Polyphenols in Dental Applications.Bioengineering (Basel, Switzerland) · 2020
    Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
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.

Yi LiuSchool of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA.
Xinyan BaiSchool of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA.
Shaohua LiSchool of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA.
Ying LiuSchool of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA.
Andrew KeightleySchool of Biological Sciences, University of Missouri-Kansas City, Kansas City, MO 64110, USA.
Yong WangSchool of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA. Electronic address: Wangyo@umkc.edu.

Funding

Multifunctional, Non-thermal Plasmas for Long-lasting Dental AdhesionR01DE021431 · NIDCR · UNIVERSITY OF MISSOURI KANSAS CITY · PI WANG, YONG, YU, QINGSONG · 2011 to 2015
$1.9M
APPLICATION OF CLICK CHEMISTRY IN THE DEVELOPMENT OF NOVEL DENTAL ADHESIVESR15DE021023 · NIDCR · UNIVERSITY OF MISSOURI KANSAS CITY · PI PENG, ZHONGHUA, WANG, YONG · 2010 to 2010
$450k
NIDCR NIH HHS R01 DE021431NIDCR NIH HHS R01-DE021431-01A1NIDCR NIH HHS R15 DE021023NIDCR NIH HHS R15-DE021023
6 · The paper itself

Abstract

objectiveTo investigate the relationship between the structures of polyphenolic compounds found in grape seed extract (GSE) and their activity in cross-linking dentin collagen in clinically relevant settings.

methodsRepresentative monomeric and dimeric GSE constituents including (+)-catechin (pCT), (-)-catechin (CT), (-)-epicatechin (EC), (-)-epigallocatechin (EGC), (-)-epicatechin gallate (ECG), (-)-epigallocatechin gallate (EGCG), procyanidin B2 and a pCT-pCT dimer were purchased or synthesized. GSE was separated into low (PALM) and high molecular weight (PAHM) fractions. Human molars were processed into dentin films and beams. After demineralization, 11 groups of films (n=5) were treated for 1min with the aforementioned reagents (1wt% in 50/50 ethanol/water) and 1 group remained untreated. The films were studied by Fourier transform infrared spectroscopy (FTIR) followed by a quantitative mass spectroscopy-based digestion assay. Tensile properties of demineralized dentin beams were evaluated (n=7) after treatments (2h and 24h) with selective GSE species that were found to protect dentin collagen from collagenase.

resultsEfficacy of GSE constituents in cross-linking dentin collagen was dependent on molecular size and galloylation. Non-galloylated species with degree of polymerization up to two, including pCT, CT, EC, EGC, procyanidin B2 and pCT-pCT dimer were not active. Galloylated species were active starting from monomeric form, including ECG, EGCG, PALM, GSE and PAHM. PALM induced the best overall improvement in tensile properties of dentin collagen. SIGNIFICANCE: Identification under clinically relevant settings of structural features that contribute to GSE constituents' efficacy in stabilizing demineralized dentin matrix has immediate impact on optimizing GSE's use in dentin bonding.

Indexed as

BiflavonoidsCatechinCollagenCross-Linking ReagentsDentinGrape Seed ExtractHumansIn Vitro TechniquesMass SpectrometryMaterials TestingMolarMolecular StructureMolecular WeightPolymerizationProanthocyanidinsSpectroscopy, Fourier Transform InfraredBiflavonoidsCatechinCollagenCross-Linking Reagentsepicatechin gallateepigallocatechin gallateGrape Seed ExtractProanthocyanidinsprocyanidinCollagenase digestionCross-linkingDentin collagenGrape seed extractProanthocyanidinsTensile properties

Identifiers

PMID25958268
PMCPMC4461451

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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.