Evidence map›Paper›PMID 23356985›Full record

ArticleBone2013

Inactivation of Lrp5 in osteocytes reduces young's modulus and responsiveness to the mechanical loading.

Liming Zhao, Joon W Shim, Todd R Dodge, Alexander G Robling, Hiroki Yokota

Open access · greenAbstract read
In one paragraph

Article in Bone, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 6% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 66 citations in OpenAlex.

  1. Methodological aspects ofJournal of musculoskeletal & neuronal interactions · 2023
    Pooled it
  2. Review
  3. Review
  4. JBMR plus · 2023
    Article
  5. Molecular mechanisms of exercise contributing to tissue regeneration.Signal transduction and targeted therapy · 2022
    Review
  6. Osteoblast-Specific Wnt Secretion Is Required for Skeletal Homeostasis and Loading-Induced Bone Formation in Adult Mice.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2022
    Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. New Advances in Osteocyte Mechanotransduction.Current osteoporosis reports · 2021
    Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. The Osteocyte: New Insights.Annual review of physiology · 2020
    Review
  18. Review
  19. Review
  20. RNA-seq in Skeletal Biology.Current osteoporosis reports · 2019
    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

5 authors at 2 institutions in 1 country.

Liming ZhaoDepartment of Biomedical Engineering, Indiana University Purdue University Indianapolis, IN 46202, USA. lizhao@iupui.edu
Joon W Shim
Todd R Dodge
Alexander G Robling
Hiroki Yokota
Indiana University – Purdue University Indianapolis · USUniversity of Indianapolis · US

Funding

Lrp5 signaling in bone mechanotransduction and metabolismR01AR053237 · NIAMS · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI ALEXANDER G ROBLING, Matthew L Warman · 2005 to 2026
$9.4M
MECHANICAL LOADING AND BONER01AR052144 · NIAMS · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI YOKOTA, HIROKI · 2006 to 2018
$4.2M
Lrp5 and Lrp6 signaling in bone mechanotransduction and metabolismR56AR053237 · NIAMS · INDIANA UNIVERSITY INDIANAPOLIS · PI ROBLING, ALEXANDER G, WARMAN, MATTHEW L · 2023 to 2023
$349k
NIAMS NIH HHS AR52144NIAMS NIH HHS AR53237NIAMS NIH HHS R01 AR052144NIAMS NIH HHS R01 AR053237NIAMS NIH HHS R56 AR053237
6 · The paper itself

Abstract

Low-density-lipoprotein receptor-related protein 5 (Lrp5) is a co-receptor in Wnt signaling, which plays a critical role in development and maintenance of bone. Osteoporosis-pseudoglioma syndrome, for instance, arises from loss-of-function mutations in Lrp5, and global deletion of Lrp5 in mice results in significantly lower bone mineral density. Since osteocytes are proposed to act as a mechanosensor in the bone, we addressed a question whether a conditional loss-of-function mutation of Lrp5 selective to osteocytes (Dmp1-Cre;Lrp5(f/f)) would alter responses to ulna loading. Loading was applied to the right ulna for 3 min (360 cycles at 2Hz) at a peak force of 2.65 N for 3 consecutive days, and the contralateral ulna was used as a non-loaded control. Young's modulus was determined using a midshaft section of the femur. The results showed that compared to age-matched littermate controls, mice lacking Lrp5 in osteocytes exhibited smaller skeletal size with reduced bone mineral density and content. Compared to controls, Lrp5 deletion in osteocytes also led to a 4.6-fold reduction in Young's modulus. In response to ulna loading, mineralizing surface, mineral apposition rate, and bone formation rate were diminished in mice lacking Lrp5 in osteocytes by 52%, 85%, and 69%, respectively. Collectively, the results support the notion that the loss-of-function mutation of Lrp5 in osteocytes causes suppression of mechanoresponsiveness and reduces bone mass and Young's modulus. In summary, Lrp5-mediated Wnt signaling significantly contributes to maintenance of mechanical properties and bone mass.

Indexed as

AllelesAnimalsBiomechanical PhenomenaBone and BonesBone DensityElastic ModulusHomozygoteLow Density Lipoprotein Receptor-Related Protein-5MiceMice, KnockoutOrgan SizeOsteocytesWeight-BearingX-Ray MicrotomographyLow Density Lipoprotein Receptor-Related Protein-5

Identifiers

PMID23356985
PMCPMC3602226
OpenAlexW1995599566

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.