Evidence map›Paper›PMID 21445990›Full record

ArticleJournal of orthopaedic research : official publication of the Orthopaedic Research Society2011

Protective role of IL-1β against post-arthroplasty Staphylococcus aureus infection.

Nicholas M Bernthal, Jonathan R Pribaz, Alexandra I Stavrakis, Fabrizio Billi, John S Cho, Romela Irene Ramos, Kevin P Francis, Yoichiro Iwakura, Lloyd S Miller

Open access · greenAbstract read
In one paragraph

Article in Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
4.7field-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

50 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Electrophoretic Deposition of Gentamicin Into Titania Nanotubes Prevents Evidence of Infection in a Mouse Model of Periprosthetic Joint Infection.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. CCR2 contributes to host defense against Staphylococcus aureus orthopedic implant-associated infections in mice.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2022
    Article
  12. Effect of New 2-Thioxoimidazolidin-4-one Compounds againstThe Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2022
    Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Interleukin-1β and tumor necrosis factor are essential in controlling an experimental orthopedic implant-associated infection.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2020
    Article
  18. Review
  19. Article
  20. 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

9 authors at 2 institutions in 2 countries.

Nicholas M BernthalOrthopaedic Hospital Research Center, Orthopaedic Hospital Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California, Los Angeles, California, USA.
Jonathan R Pribaz
Alexandra I Stavrakis
Fabrizio Billi
John S Cho
Romela Irene Ramos
Kevin P Francis
Yoichiro Iwakura
Lloyd S Miller
University of California, Los Angeles · USThe University of Tokyo · JP

Funding

UCLA Imaging Resource for Mouse Cancer ModelsR24CA092865 · NCI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI PHELPS, MICHAEL E · 2001 to 2006
$4.3M
Innate Immune Response to Staphylococcus aureus in SkinR01AI078910 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MILLER, LLOYD S · 2009 to 2013
$1.7M
NCI NIH HHS R24 CA092865NCI NIH HHS R24 CA92865NIAID NIH HHS R01 AI078910
6 · The paper itself

Abstract

MyD88 is an adapter molecule that is used by both IL-1R and TLR family members to initiate downstream signaling and promote immune responses. Given that IL-1β is induced after Staphylococcus aureus infections and TLR2 is activated by S. aureus lipopeptides, we hypothesized that IL-1β and TLR2 contribute to MyD88-dependent protective immune responses against post-arthroplasty S. aureus infections. To test this hypothesis, we used a mouse model of a post-arthroplasty S. aureus infection to compare the bacterial burden, biofilm formation and neutrophil recruitment in IL-1β-deficient, TLR2-deficient and wild-type (wt) mice. By using in vivo bioluminescence imaging, we found that the bacterial burden in IL-1β-deficient mice was 26-fold higher at 1 day after infection and remained 3- to 10-fold greater than wt mice through day 42. In contrast, the bacterial burden in TLR2-deficient mice did not differ from wt mice. In addition, implants harvested from IL-1β-deficient mice had more biofilm formation and 14-fold higher adherent bacteria compared with those from wt mice. Finally, IL-1β-deficient mice had ∼50% decreased neutrophil recruitment to the infected postoperative joints than wt mice. Taken together, these findings suggest a mechanism by which IL-1β induces neutrophil recruitment to help control the bacterial burden and the ensuing biofilm formation in a post-surgical joint.

Indexed as

AnimalsArthroplastyBiofilmsBone WiresInterleukin-1betaMaleMiceMice, CongenicMice, Inbred C57BLMyeloid Differentiation Factor 88Neutrophil InfiltrationProsthesis-Related InfectionsStaphylococcal InfectionsStaphylococcus aureusToll-Like Receptor 2Interleukin-1betaMyd88 protein, mouseMyeloid Differentiation Factor 88Tlr2 protein, mouseToll-Like Receptor 2

Identifiers

PMID21445990
PMCPMC3132302
OpenAlexW2030425757

What OpenQuestion holds

Textmetadata
LicenceTDM
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.