Evidence map›Paper›PMID 21917601›Full record

ArticleJournal of dental research2011

Whole-saliva proteolysis and its impact on salivary diagnostics.

K Thomadaki, E J Helmerhorst, N Tian, X Sun, W L Siqueira, D R Walt, F G Oppenheim

Open access · greenAbstract read
In one paragraph

Article in Journal of dental research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

62 citing papers in PubMed, 144 citations in OpenAlex.

  1. Article
  2. Article
  3. Potential of Saliva in Stroke Patients: A Review.International journal of molecular sciences · 2026
    Review
  4. Therapeutic peptides and proteins: Status and developments in drug delivery.Journal of controlled release : official journal of the Controlled Release Society · 2026
    Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Dried Spot Paradigm: Problems and Prospects in Proteomics.International journal of molecular sciences · 2025
    Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. Article

2 more citing papers are in PubMed but not listed here.

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 3 institutions in 2 countries.

K ThomadakiBoston University Henry M. Goldman School of Dental Medicine, Dept. of Periodontology and Oral Biology, 700 Albany Street, CABR W201, Boston, MA 02118, USA.
E J Helmerhorst
N Tian
X Sun
W L Siqueira
D R Walt
F G Oppenheim
Boston University · USPearson (United States) · USWestern University · CA

Funding

Microsensor Arrays for Saliva DiagnosticsU01DE017788 · NIDCR · TUFTS UNIVERSITY MEDFORD · PI WALT, DAVID R. · 2006 to 2010
$8.2M
MICROBICIDAL SALIVARY HISTIDINE-RICH PROTEINSR01DE007652 · NIDCR · BOSTON UNIVERSITY MEDICAL CAMPUS · PI OPPENHEIM, FRANK G · 1986 to 2012
$3.9M
Microsensor Arrays for Saliva DiagnosticsU01DE014950 · NIDCR · TUFTS UNIVERSITY MEDFORD · PI WALT, DAVID R. · 2002 to 2005
$3.8M
Salivary Proteins in Dental IntegumentsR01DE005672 · NIDCR · BOSTON UNIVERSITY MEDICAL CAMPUS · PI OPPENHEIM, FRANK G · 1985 to 2009
$3.1M
Gastro-intestinal microbes degrading dietary glutenR01AI087803 · NIAID · BOSTON UNIVERSITY MEDICAL CAMPUS · PI HELMERHORST, EVA JOSEPHINE · 2010 to 2014
$2.0M
Oral Fluid Proteolytic Effects on Salivary Protein Structure and FunctionR21DE018132 · NIDCR · BOSTON UNIVERSITY MEDICAL CAMPUS · PI HELMERHORST, EVA JOSEPHINE · 2008 to 2009
$447k
SALIVARY PROTEINS IN DENTAL INTEGUMENTSR37DE005672 · NIDCR · BOSTON UNIVERSITY MEDICAL CAMPUS · PI OPPENHEIM, FRANK G · 1991 to 2000
$411k
MINORITY PREDOCTORAL FELLOWSHIP PROGRAM--NIGMSF31DE005672 · NIDCR · UNIVERSITY OF MARYLAND BALTIMORE · PI MATHURIN, WILLIAM · 1994 to 1997
–
CIHR 106657CIHR 97577NIAID NIH HHS AI087803NIAID NIH HHS R01 AI087803NIDCR NIH HHS DE05672NIDCR NIH HHS DE07652NIDCR NIH HHS DE14950NIDCR NIH HHS DE17788NIDCR NIH HHS DE18132NIDCR NIH HHS F31 DE005672NIDCR NIH HHS R01 DE005672NIDCR NIH HHS R01 DE007652NIDCR NIH HHS R21 DE018132NIDCR NIH HHS R37 DE005672NIDCR NIH HHS U01 DE014950NIDCR NIH HHS U01 DE017788
6 · The paper itself

Abstract

There is growing interest in the use of human whole saliva for diagnostics and disease monitoring as an alternative to blood samples. In contrast to blood, whole saliva is a non-sterile body fluid. Proper hand-ling and storage are required to preserve the integrity of potential biomarkers. We investigated salivary autoproteolytic degradation using a variety of approaches. We determined inhibition of protease activities by monitoring the endogenous proteome. In addition, the stability of highly protease-susceptible proteins-histatin 5, statherin, and PRP1-was assessed. Experimental variables included (a) protease inhibitors, (b) salivary pH, (c) incubation temperatures, and (d) sample heating. A cocktail containing AEBSF, aprotinin, pancreatic trypsin inhibitor, leupeptin, antipain, and EDTA could not prevent histatin 5, statherin, or PRP1 degradation in whole saliva. Among the other treatments evaluated, short-term storage of freshly collected samples on ice was effective without interfering with the chemistry of the proteome. In conclusion, whole saliva contains a unique mixture of enzymes as evidenced from their resilience to protease inhibition. Analytical evidence on protein stability is needed to ensure the validity of salivary biomarker study outcomes. Analysis of the data presented will provide help and guidance for the use of saliva samples for diagnostic purposes.

Indexed as

Protein StabilityBiomarkersChromatography, High Pressure LiquidElectrophoresis, Polyacrylamide GelHistatinsHumansHydrogen-Ion ConcentrationHydrolysisPeptide HydrolasesProtease InhibitorsProteomeSalivaSalivary Proline-Rich ProteinsSalivary Proteins and PeptidesSpecimen HandlingTemperatureBiomarkersHistatinsHTN3 protein, humanPeptide HydrolasesProtease InhibitorsProteomeSalivary Proline-Rich ProteinsSalivary Proteins and PeptidesSTATH protein, human

Identifiers

PMID21917601
PMCPMC3188460
OpenAlexW2014076617

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.