Evidence map›Paper›PMID 24709687›Full record

ArticleBone2014

Osteocyte apoptosis is required for production of osteoclastogenic signals following bone fatigue in vivo.

Oran D Kennedy, Damien M Laudier, Robert J Majeska, Hui B Sun, Mitchell B Schaffler

Open access · greenAbstract read
In one paragraph

Article in Bone, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed, 1 pooled it
6.0field-weighted citation impact, top 3% 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

91 citing papers in PubMed, 1 synthesis or guideline pooled it, 143 citations in OpenAlex.

  1. Consequences of Aging on Bone.Aging and disease · 2023
    Pooled it
  2. Review
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  7. Article
  8. Effects of Thermal Environment on Bone Microenvironment: A Narrative Review.International journal of molecular sciences · 2025
    Review
  9. [Pathology of Cartilage-to-Bone Crosstalk: A New Angle for Animal Experimental Studies on Osteoarthritis].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2025
    Review
  10. Article
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  17. International journal of molecular sciences · 2023
    Article
  18. Article
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31 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Oran D KennedyDepartment of Biomedical Engineering, The City College of New York of the City University of New York, New York, NY, USA. Electronic address: oran.kennedy@nyumc.org.
Damien M LaudierDepartment of Biomedical Engineering, The City College of New York of the City University of New York, New York, NY, USA.
Robert J MajeskaDepartment of Biomedical Engineering, The City College of New York of the City University of New York, New York, NY, USA. Electronic address: rmajeska@ccny.cuny.edu.
Hui B SunDepartment Radiation Oncology, Albert Einstein College of Medicine, Bronx, NY, USA; Department of Radiation Oncology, Albert Einstein College of Medicine, Bronx, NY, USA. Electronic address: herb.sun@einstein.yu.edu.
Mitchell B SchafflerDepartment of Biomedical Engineering, The City College of New York of the City University of New York, New York, NY, USA. Electronic address: mschaffler@ccny.cuny.edu.
City College of New York · USAlbert Einstein College of Medicine · US

Funding

Osteocyte Integrity and Bone RemodelingR01AR041210 · NIAMS · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI SCHAFFLER, MITCHELL B · 1997 to 2019
$5.8M
Structural, Molecular, and Functional Specialization in Osteocyte MechanosensingR01AR057139 · NIAMS · CITY COLLEGE OF NEW YORK · PI SCHAFFLER, MITCHELL B, SPRAY, DAVID C · 2010 to 2014
$2.5M
CITED2 and Mechanical LoadsR01AR050968 · NIAMS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI SUN, HUI BIN · 2006 to 2010
$1.4M
Diffuse microdamage in bone: Direct repair without remodelingR21AR060445 · NIAMS · CITY COLLEGE OF NEW YORK · PI SCHAFFLER, MITCHELL B · 2011 to 2012
$371k
MICRODAMAGE AND BONE REMODELING IN STRESS FRACTURER29AR041210 · NIAMS · HENRY FORD HEALTH SYSTEM · PI SCHAFFLER, MITCHELL B · 1992 to 1996
–
NIAMS NIH HHS AR050968NIAMS NIH HHS AR057139NIAMS NIH HHS AR060445NIAMS NIH HHS AR41210NIAMS NIH HHS R01 AR041210NIAMS NIH HHS R01 AR050968NIAMS NIH HHS R01 AR057139NIAMS NIH HHS R21 AR060445
6 · The paper itself

Abstract

Osteocyte apoptosis is spatially, temporally and functionally linked to the removal and replacement of microdamage in the bone. Recently we showed that microdamage elicits distinct responses in two populations of osteocytes near the injury site. Osteocytes directly adjacent to microdamage undergo apoptosis, whereas there is a second group of osteocytes located adjacent to the apoptotic population that upregulate expression of osteoclastogenic signaling molecules. In this study we used the pan-caspase inhibitor QVD to test the hypothesis that osteocyte apoptosis is an obligatory step in the production of key osteoclastogenic signals by in situ osteocytes in fatigue-damaged bone. We found, based on real-time PCR and immunohistochemistry assays, that expression of the apoptosis marker caspase-3 as well osteoclastogenic proteins RANKL and VEGF were increased following fatigue, while expression of the RANKL antagonist OPG decreased. However, when apoptosis was inhibited using QVD, these changes in gene expression were completely blocked. This dependence on apoptosis for neighboring non-apoptotic cells to produce signals that promote tissue remodeling also occurs in response to focal ischemic injury in the brain and heart, indicating that osteoclastic bone remodeling follows a common paradigm for localized tissue repair.

Indexed as

ApoptosisAnimalsBone and BonesFemaleOsteoclastsOsteocytesRatsRats, Sprague-DawleyApoptosisIn vivo fatigueOsteoclastsOsteocytesPan-caspase InhibitorRANKL

Identifiers

PMID24709687
PMCPMC4070223
OpenAlexW2029737500

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.