Evidence map›Paper›PMID 23294881›Full record

ArticleJournal of the American Association for Laboratory Animal Science : JAALAS2012

Rats housed on corncob bedding show less slow-wave sleep.

Laura J Leys, Steve McGaraughty, Richard J Radek

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Association for Laboratory Animal Science : JAALAS, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

26 citing papers in PubMed, 39 citations in OpenAlex.

  1. Analysis of IVC Microenvironments During an Extended Cage-Change Interval in Rats (Rattus norvegicus).Journal of the American Association for Laboratory Animal Science : JAALAS · 2026
    Article
  2. Article
  3. Review
  4. Enhancing Rodent Welfare, Cost Savings, and Efficiency: Implementation and Review of Data-Driven Improvements.Journal of the American Association for Laboratory Animal Science : JAALAS · 2026
    Review
  5. Article
  6. Bedding as a variable affecting fasting blood glucose and vascular physiology in mice.American journal of physiology. Heart and circulatory physiology · 2023
    Article
  7. Article
  8. Identification of Rodent Husbandry Refinement Opportunities through Benchmarking and Collaboration.Journal of the American Association for Laboratory Animal Science : JAALAS · 2022
    Article
  9. Article
  10. Article
  11. Compressed Paper as an Alternative to Corn Cob Bedding in Mouse (Journal of the American Association for Laboratory Animal Science : JAALAS · 2020
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Feasibility of Using Rice Hulls as Bedding for Laboratory Mice.Journal of the American Association for Laboratory Animal Science : JAALAS · 2016
    Article
  18. Article
  19. Review
  20. Effect of Corncob bedding on feed conversion efficiency in a high-fat diet-induced prediabetic model in C57Bl/6J mice.Journal of the American Association for Laboratory Animal Science : JAALAS · 2014
    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

3 authors at 1 institution in 1 country.

Laura J LeysNeuroscience Research, Global Pharmaceutical Research and Development, Abbott Laboratories, Abbott Park, Illinois, USA.
Steve McGaraughty
Richard J Radek
Abbott (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the reported advantages of corncob bedding, questions have emerged about how comfortable animals find this type of bedding as a resting surface. In this study, encephalography (EEG) was used to compare the effects of corncob and aspen-chip bedding on rat slow-wave sleep (SWS). According to a facility-wide initiative, rats that were weaned on aspen-chip bedding were switched to corncob bedding in home cages and EEG recording chambers. Spontaneous EEG recordings obtained for 5 wk after the switch to corncob bedding demonstrated that rats spent significantly less time in SWS as compared with levels measured on aspen chips just prior to the bedding switch. SWS remained low even after a 5-wk acclimation period to the corncob bedding. We then acutely switched back to aspen-chip bedding in EEG recording chambers. Acute reinstatement of aspen-chip bedding during EEG recording was associated with an average 22% increase in time spent in SWS, with overall levels of SWS comparable to the levels measured on aspen chips prior to the change to corncob bedding. Aspen-chip bedding subsequently was reinstated in both home cages and EEG recording chambers, and SWS baseline levels were restored. These data raise important concerns about the effects of corncob bedding on rodents used in research.

Indexed as

Housing, AnimalSleepAnimalsAnimals, LaboratoryMaleRatsRats, Sprague-DawleyZea mays

Identifiers

PMID23294881
PMCPMC3508179
OpenAlexW2344384392

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.