Evidence map›Paper›PMID 31253875›Full record

ArticleScientific reports2019

Conventional and Specific-Pathogen Free Rats Respond Differently to Anesthesia and Surgical Trauma.

Hayley L Letson, Jodie Morris, Erik Biros, Geoffrey P Dobson

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
5.0field-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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Article
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  5. Article
  6. Advances in Rodent Experimental Models of Sepsis.International journal of molecular sciences · 2023
    Review
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  13. Article
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  17. Trauma of major surgery: A global problem that is not going away.International journal of surgery (London, England) · 2020
    Article
  18. Article
  19. 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

4 authors at 1 institution in 1 country.

Hayley L LetsonHeart, Trauma and Sepsis Research Laboratory, College of Medicine and Dentistry, James Cook University, Queensland, 4811, Australia.ORCID http://orcid.org/0000-0003-0135-134X
Jodie MorrisHeart, Trauma and Sepsis Research Laboratory, College of Medicine and Dentistry, James Cook University, Queensland, 4811, Australia.
Erik BirosHeart, Trauma and Sepsis Research Laboratory, College of Medicine and Dentistry, James Cook University, Queensland, 4811, Australia.
Geoffrey P DobsonHeart, Trauma and Sepsis Research Laboratory, College of Medicine and Dentistry, James Cook University, Queensland, 4811, Australia. geoffrey.dobson@jcu.edu.au.
James Cook University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Specific-pathogen free (SPF) animals were introduced in the 1960s to minimize disease and infection as variables in biomedical research. Our aim was to examine differences in physiological response in rat colonies bred and housed in a conventional versus SPF facility, and implications for research. Sprague-Dawley rats were anesthetized and catheterized for blood and pressure monitoring, and electrocardiogram (ECG) leads implanted. Hematology was assessed, and coagulation profile using rotational thromboelastometry. Health screening was outsourced to Cerberus Sciences. SPF rats had significantly lower pulse pressure (38% decrease), arrhythmias and prolonged QTc (27% increase) compared to conventional rats. No arrhythmias were found in conventional rats. SPF rats had significantly higher white cell, monocyte, neutrophil and lymphocyte counts, and were hyperfibrinolytic, indicated by EXTEM maximum lysis >15%. Independent assessment revealed similar pathogen exclusion between colonies, with the exception of Proteus in SPF animals. Returning to a conventional facility restored normal host physiology. We conclude that SPF animals displayed an abnormal hemodynamic, hematological and hemostatic phenotype in response to anesthesia and surgery, and provide a number of recommendations to help standardize research outcomes and translation.

Indexed as

AnesthesiaSurgical Procedures, OperativeWounds and InjuriesAnimalsBiomarkersBlood CoagulationCardiovascular Physiological PhenomenaCardiovascular SystemElectrocardiographyHemodynamicsModels, AnimalRatsRats, Sprague-DawleySpecific Pathogen-Free OrganismsBiomarkers

Identifiers

PMID31253875
PMCPMC6599031
OpenAlexW2954553190

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.