Evidence map›Paper›PMID 20353693›Full record

ArticleJournal of the American Association for Laboratory Animal Science : JAALAS2010

Endotoxin, coliform, and dust levels in various types of rodent bedding.

Tanya E Whiteside, Julius E Thigpen, Grace E Kissling, Mary G Grant, Diane Forsythe

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of the American Association for Laboratory Animal Science : JAALAS, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

25 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Review
  3. 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
  4. Guidelines for diet-induced models of cardiometabolic syndrome.American journal of physiology. Heart and circulatory physiology · 2025
    Review
  5. Article
  6. Review
  7. Article
  8. Effect of Bedding Substrates on Blood Glucose and Body Weight in Mice.Journal of the American Association for Laboratory Animal Science : JAALAS · 2022
    Article
  9. Identification of Rodent Husbandry Refinement Opportunities through Benchmarking and Collaboration.Journal of the American Association for Laboratory Animal Science : JAALAS · 2022
    Article
  10. What's wrong with my experiment?: The impact of hidden variables on neuropsychopharmacology research.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Review
  11. Article
  12. Effects of Compressed Paper Bedding on Mouse Breeding Performance and Recognition of Animal Health Concerns.Journal of the American Association for Laboratory Animal Science : JAALAS · 2021
    Article
  13. Article
  14. Compressed Paper as an Alternative to Corn Cob Bedding in Mouse (Journal of the American Association for Laboratory Animal Science : JAALAS · 2020
    Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. PCR Testing of IVC Filter Tops as a Method for Detecting Murine Pinworms and Fur Mites.Journal of the American Association for Laboratory Animal Science : JAALAS · 2017
    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

5 authors at 1 institution in 1 country.

Tanya E WhitesideComparative Medicine, National Institute of Environmental Health Sciences, National Institutes of Health, US Department of Health and Human Services, Research Triangle Park, NC, USA. whitesi1@niehs.nih.gov
Julius E Thigpen
Grace E Kissling
Mary G Grant
Diane Forsythe
National Institute of Environmental Health Sciences · US

Funding

Animal Research SupportZIGES102585 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI COBLE, DONDRAE · 2009 to 2025
$98.6M
Identifying And Evaluating Sources Of Variability In Rodent StudiesZIAES045003 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI KISSLING, GRACE E · 2009 to 2017
$712k
Intramural NIH HHS
6 · The paper itself

Abstract

Endotoxins in grain dust, household dust, and animal bedding may induce respiratory symptoms in rodents and humans. We assayed the endotoxin, coliform, and dust levels in 20 types of rodent bedding. Endotoxin concentrations were measured by using a commercial test kit, coliform counts were determined by using conventional microbiologic procedures, and dust content was evaluated by using a rotating-tapping shaker. Paper bedding types contained significantly less endotoxin than did other bedding types; the highest levels of endotoxin were detected in hardwood and corncob beddings. The range of endotoxin content for each bedding type was: corncob bedding, 1913 to 4504 endotoxin units per gram (EU/g); hardwood bedding, 3121 to 5401 EU/g; corncob-paper mixed bedding, 1586 to 2416 EU/g; and paper bedding, less than 5 to 105 EU/g. Coliform counts varied from less than 10 to 7591 cfu/g in corncob beddings, 90 to 4010 cfu/g in corncob-paper mixed beddings, less than 10 to 137 cfu/g in hardwood beddings, and less than 10 cfu/g in paper beddings. Average dust content was less than 0.15% in all commercial bedding types. We conclude that paper bedding is the optimal bedding type for conducting LPS inhalation studies and that rodent bedding containing high levels of endotoxin may alter the results of respiratory and immunologic studies in rodents.

Indexed as

Housing, AnimalRodentiaAnimalsBedding and LinensDustEndotoxinsEnterobacteriaceaePaperWoodZea maysDustEndotoxins

Identifiers

PMID20353693
PMCPMC2846006
OpenAlexW1570602560

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.