Evidence map›Paper›PMID 22664934›Full record

ArticleOncology reports2012

Comparison of tear protein levels in breast cancer patients and healthy controls using a de novo proteomic approach.

Daniel Böhm, Ksenia Keller, Julia Pieter, Nils Boehm, Dominik Wolters, Wulf Siggelkow, Antje Lebrecht, Marcus Schmidt, Heinz Kölbl, Norbert Pfeiffer and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Oncology reports, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

48 citing papers in PubMed, 103 citations in OpenAlex.

  1. Review
  2. Review
  3. Tear fluid database: a reference website for tear fluid proteomics.Database : the journal of biological databases and curation · 2026
    Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Dried Spot Paradigm: Problems and Prospects in Proteomics.International journal of molecular sciences · 2025
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Unraveling the Intraday Variations in the Tear Fluid Proteome.Investigative ophthalmology & visual science · 2024
    Article
  14. Review
  15. Review
  16. Review
  17. Article
  18. Review
  19. Review
  20. Review
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

11 authors at 2 institutions in 1 country.

Daniel BöhmDepartment of Obstetrics and Gynecology, University Medical Center of the Johannes Gutenberg University Mainz, D-55131 Mainz, Germany. daniel.boehm@unimedizin-mainz.de
Ksenia Keller
Julia Pieter
Nils Boehm
Dominik Wolters
Wulf Siggelkow
Antje Lebrecht
Marcus Schmidt
Heinz Kölbl
Norbert Pfeiffer
Franz-Hermann Grus
Johannes Gutenberg University Mainz · DEUniversity Medical Center of the Johannes Gutenberg University Mainz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Noninvasive biomarkers are urgently needed for early detection of breast cancer since the risk of recurrence, morbidity and mortality are closely related to disease stage at the time of primary surgery. In the past decade, many proteomics-based approaches were developed that utilize the protein profiling of human body fluids or identification of putative biomarkers to obtain more knowledge on the effects of cancer emergence and progression. Herein, we report on an analysis of proteins in the tear fluid from breast carcinoma patients and healthy women using a de novo proteomic approach and 25 mixed samples from each group. This study included 25 patients with primary invasive breast carcinoma and 25 age-matched healthy controls. We performed a MALDI-TOF-TOF-driven semi-quantitative comparison of tear protein levels in cancer (CA) and control (CTRL) using a de novo approach in pooled samples. Over 150 proteins in the tear fluid of CTRL and CA were identified. Using an in-house-developed algorithm we found more than 20 proteins distinctly upregulated or downregulated in the CTRL and CA groups. We identified several proteins that had modified expression in breast cancer patients. These proteins are involved in host immune system pathways (e.g., C1Q1 or S100A8) and different metabolic cascades (ALDH3A or TPI). Further validation of the results in an independent population combined with individual protein profiling of participants is needed to confirm the specificity of our findings and may lead to a better understanding of the pathological mechanism of breast cancer.

Indexed as

AdultAgedAged, 80 and overBiomarkers, TumorBreast NeoplasmsCase-Control StudiesElectrophoresis, Polyacrylamide GelEye ProteinsFemaleHumansMiddle AgedProteomeProteomicsSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationBiomarkers, TumorEye ProteinsProteometear proteins

Identifiers

PMID22664934
PMCPMC3583517
OpenAlexW1529812339

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.