Evidence map›Paper›PMID 32043912›Full record

ArticleThe journal of histochemistry and cytochemistry : official journal of the Histochemistry Society2020

Effect of Different Proteinase K Digest Protocols and Deparaffinization Methods on Yield and Integrity of DNA Extracted From Formalin-fixed, Paraffin-embedded Tissue.

Zoe Frazer, Changyoung Yoo, Manveer Sroya, Camille Bellora, Brian L DeWitt, Ignacio Sanchez, Geraldine A Thomas, William Mathieson

Open access · bronzeAbstract read
In one paragraph

Article in The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.9field-weighted citation impact, top 28% 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

9 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Application of DNA Methylome Analysis to Patients with ME/CFS.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  6. Article
  7. Improving Yields in Multi-analyte Extractions by Utilizing Post-homogenized Tissue Debris.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2023
    Article
  8. Article
  9. Why Formalin-fixed, Paraffin-embedded Biospecimens Must Be Used in Genomic Medicine: An Evidence-based Review and Conclusion.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2020
    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

8 authors at 2 institutions in 3 countries.

Zoe FrazerDepartment of Surgery and Cancer, Imperial College London, London, UK.
Changyoung YooDepartment of Surgery and Cancer, Imperial College London, London, UK.
Manveer SroyaDepartment of Surgery and Cancer, Imperial College London, London, UK.
Camille BelloraIntegrated Biobank of Luxembourg, Dudelange, Luxembourg.
Brian L DeWittIntegrated Biobank of Luxembourg, Dudelange, Luxembourg.
Ignacio SanchezIntegrated Biobank of Luxembourg, Dudelange, Luxembourg.
Geraldine A ThomasDepartment of Surgery and Cancer, Imperial College London, London, UK.
William MathiesonIntegrated Biobank of Luxembourg, Dudelange, Luxembourg.
Central Bank of Luxembourg · LUImperial College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

DNA extracted from formalin-fixed, paraffin-embedded tissue sections is often inadequate for sequencing, due to poor yield or degradation. We optimized the proteinase K digest by testing increased volume of enzyme and increased digest length from the manufacturer's protocol using 54 biospecimens, performing the digest in centrifuge tubes. Doubling the quantity of proteinase K resulted in a median increase in yield of 96%. Applying the optimized proteinase K protocol to sections deparaffinized on microscope slides generated a further increase in yield of 41%, but only at >50,000 epithelial tumor cells/section. DNA yield now correlated with (χ

Indexed as

Base SequenceCell ExtractsCell Line, TumorDNAEndopeptidase KEpitheliumFormaldehydeGene Expression ProfilingHumansNeoplasmsParaffin EmbeddingProteolysisQuality ControlReal-Time Polymerase Chain ReactionTissue FixationCell ExtractsDNAEndopeptidase KFormaldehydeDNA Integrity Numbergenomic screen tapeIllumina FFPE QC Assayquality control

Identifiers

PMID32043912
PMCPMC7045302
OpenAlexW3006603115

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.