Evidence map›Paper›PMID 29529957›Full record

ArticleJournal of feline medicine and surgery2019

Circulating cell-free DNA does not harbour a diagnostic benefit in cats with feline diffuse iris melanomas.

Jessica G Rushton, Reinhard Ertl, Dieter Klein, Alexander Tichy, Barbara Nell

Open access · greenAbstract read
In one paragraph

Article in Journal of feline medicine and surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.2field-weighted citation impact, top 50% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. New Perspectives on the Importance of Cell-Free DNA Biology.Diagnostics (Basel, Switzerland) · 2022
    Review
  4. Article
  5. Article
  6. Review
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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

5 authors at 1 institution in 1 country.

Jessica G Rushton1 Department for Companion Animals and Horses, Vetmeduni Vienna, Vienna, Austria.ORCID 0000-0002-9959-179X
Reinhard Ertl2 VetCore Facility for Research, Vetmeduni Vienna, Vienna, Austria.
Dieter Klein2 VetCore Facility for Research, Vetmeduni Vienna, Vienna, Austria.
Alexander Tichy3 Department of Biomedical Sciences, Vetmeduni Vienna, Vienna, Austria.
Barbara Nell1 Department for Companion Animals and Horses, Vetmeduni Vienna, Vienna, Austria.
MODUL University Vienna · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesFeline diffuse iris melanoma (FDIM) is the most common malignant primary intraocular tumour in cats, with reported metastases rates between 19% and 63%. Currently, the only available diagnostic tool for a tentative diagnosis is histopathological examination of the enucleated eye. Therefore, the veterinary ophthalmologist is often faced with the dilemma of whether to enucleate an oftentimes visual eye or to continue monitoring, with the risk of metastases developing. In the past, cell-free DNA (cfDNA) gained more attention in human medicine, especially in the field of oncology. Prior studies have shown the use of cfDNA as diagnostic or prognostic markers in canine and human cancer patients. Therefore, the aim of this study was to investigate cfDNA concentration and integrity in cats with FDIMs compared with cats with benign iris naevi and without ocular abnormalities.

methodscfDNA from plasma of cats with iris melanoma (n = 34), iris naevus (n = 30) and without ocular abnormalities (n = 32) were extracted. Primer and probes for feline amyloid beta precursor protein ( APP) and beta actin ( ACTB) were designed for amplicons of various lengths and quantitative PCRs of extracted cfDNA were performed to measure cfDNA concentration and integrity of the plasma samples. Differences of cfDNA concentrations and integrity levels between the three groups (iris melanoma, iris naevi and controls) were analysed using the Mann-Whitney U-test.

resultscfDNA concentration and integrity analysis revealed no significant differences between the cats with iris melanoma, iris naevus or the control group ( P >0.01). Cats with metastases showed similar cfDNA concentration and integrity to cats without metastases. CONCLUSIONS AND RELEVANCE: cfDNA concentration and integrity seem to be insufficient as a diagnostic or prognostic marker in cats with FDIMs.

Indexed as

Cell-Free Nucleic AcidsIris NeoplasmsMelanomaAnimalsCat DiseasesCatsPolymerase Chain ReactionPredictive Value of TestsCell-Free Nucleic Acids

Identifiers

PMID29529957
PMCPMC10814613
OpenAlexW2792748897

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.