Evidence map›Paper›PMID 31277893›Full record

ArticleActa histochemica2019

Effects of short and long-term alcohol-based fixation on Sprague-Dawley rat tissue morphology, protein and nucleic acid preservation.

Simona Panzacchi, Federica Gnudi, Daniele Mandrioli, Rita Montella, Valentina Strollo, Bruce Alexander Merrick, Fiorella Belpoggi, Eva Tibaldi

Registry-linked trialAbstract read
In one paragraph

Article in Acta histochemica, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04669392 (Clinical and Radiographic Evaluation of 70% Ethanol Alcohol Versus Normal Saline as Root Canal Irrigating Solutions in Partial Pulpectomy of Primary Molars With Metapex A Randomized Controlled), which is not on this map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.8field-weighted citation impact, top 29% 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.

NCT04669392 early_phase1unknown statusnot on this mapstarted 2021, after this paper: background citation

Clinical and Radiographic Evaluation of 70% Ethanol Alcohol Versus Normal Saline as Root Canal Irrigating Solutions in Partial Pulpectomy of Primary Molars With Metapex A Randomized Controlled (Pilot Trial)

TypeinterventionalSponsorCairo UniversityRan2021 to 2023Enrolled20ConditionsPulpitis - Irreversible, Resorption, Root, Abscess Bone, Mobility, ToothArms70% Ethanol Alcohol
3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
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  3. Article
  4. Review
  5. Article
  6. Effect of formalin-fixation and paraffin-embedded tissue storage times on RNAscope in situ hybridization signal amplification.Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Comparison of Fixation Methods for the Detection of Claudin 1 and E-Cadherin in Breast Cancer Cell Lines by Immunofluorescence.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2022
    Article
  11. Article
  12. 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 2 countries.

Simona PanzacchiCesare Maltoni Cancer Research Center (CMCRC), Ramazzini Institute (RI), Bentivoglio, Bologna, Italy.
Federica GnudiCesare Maltoni Cancer Research Center (CMCRC), Ramazzini Institute (RI), Bentivoglio, Bologna, Italy.
Daniele MandrioliCesare Maltoni Cancer Research Center (CMCRC), Ramazzini Institute (RI), Bentivoglio, Bologna, Italy.
Rita MontellaCesare Maltoni Cancer Research Center (CMCRC), Ramazzini Institute (RI), Bentivoglio, Bologna, Italy.
Valentina StrolloCesare Maltoni Cancer Research Center (CMCRC), Ramazzini Institute (RI), Bentivoglio, Bologna, Italy.
Bruce Alexander MerrickNational Toxicology Program (NTP), National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park (RTP), NC, USA.
Fiorella BelpoggiCesare Maltoni Cancer Research Center (CMCRC), Ramazzini Institute (RI), Bentivoglio, Bologna, Italy.
Eva TibaldiCesare Maltoni Cancer Research Center (CMCRC), Ramazzini Institute (RI), Bentivoglio, Bologna, Italy. Electronic address: tibaldie@ramazzini.it.
Istituto Ramazzini · ITNational Institute of Environmental Health Sciences · US

Funding

Biomolecular Screening and Alternative Approaches for the National Toxicology ProgramZIAES103318 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI CASEY, WARREN · 2016 to 2021
$25.0M
Toxicoproteomics and Biomarker DiscoveryZ01ES010017 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI PRITCHARD, JOHN · 2000 to 2008
$331k
Intramural NIH HHS Z01 ES010017
6 · The paper itself

Abstract

Safety concerns on the toxic and carcinogenic effects of formalin exposure have drawn increasing attention to the search for alternative low risk fixatives for processing tissue specimens in laboratories worldwide. Alcohol-based fixatives are considered some of the most promising alternatives. We evaluated the performance of alcohol-fixed paraffin-embedded (AFPE) samples from Sprague-Dawley (SD) rats analyzing tissue morphology, protein and nucleic acid preservation after short and extremely long fixation times (up to 7 years), using formalin-fixed paraffin-embedded (FFPE) samples as a comparator fixative. Following short and long-term alcohol fixation, tissue morphology and cellular details in tissues, evaluated by scoring stained sections (Hematoxylin-Eosin and Mallory's trichrome), were optimally preserved if compared to formalin fixation. Immunoreactivity of proteins (Ki67, CD3, PAX5, CD68), evaluated by immunohistochemistry, showed satisfactory results when the fixation period did not exceed 1 year. Finally, we confirm the superiority of alcohol fixation compared to formalin, in terms of quantity of nucleic acid extracted from paraffin blocks, even after an extremely long time of alcohol fixation. Our results confirm that alcohol fixation is a suitable and safe alternative to formalin for pathological evaluations. There is a need for standardization of formalin-free methods and harmonization of diagnosis in pathology department worldwide.

Indexed as

Tissue FixationAnimalsEthanolFixativesImmunohistochemistryOrgan SpecificityRatsRats, Sprague-DawleyEthanolFixativesAlcoholDNAFixativeFormaldehydeImmunohistochemistryPathologyRNA

Identifiers

PMID31277893
PMCPMC6939362
OpenAlexW2953889816

What OpenQuestion holds

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Registered trials

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.