Evidence map›Paper›PMID 33435159›Full record

ReviewInternational journal of molecular sciences2021

Mechanisms of Bone Fragility: From Osteogenesis Imperfecta to Secondary Osteoporosis.

Ahmed El-Gazzar, Wolfgang Högler

Open access · goldAbstract readReview
In one paragraph

Review in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 2 pooled it
11.3field-weighted citation impact, top 1% 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

52 citing papers in PubMed, 2 syntheses or guidelines pooled it, 82 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Fifteen-minute consultation: Modern diagnostic approach to the child with recurrent fractures.Archives of disease in childhood. Education and practice edition · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Identifying rare variants in genes related to bone phenotypes in a cohort of postmenopausal women.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
    Article
  10. Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Spine health: Back pain and deformity progression.Journal of the Pediatric Orthopaedic Society of North America · 2024
    Article
  18. Review
  19. Bone fragility and osteoporosis in children and young adults.Journal of endocrinological investigation · 2024
    Review
  20. Pediatric and adult osteoporosis: a contrasting mirror.Annals of pediatric endocrinology & metabolism · 2024
    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

2 authors at 1 institution in 1 country.

Ahmed El-GazzarDepartment of Paediatrics and Adolescent Medicine, Johannes Kepler University Linz, Krankenhausstraße 26-30, 4020 Linz, Austria.ORCID 0000-0002-2859-7246
Wolfgang HöglerDepartment of Paediatrics and Adolescent Medicine, Johannes Kepler University Linz, Krankenhausstraße 26-30, 4020 Linz, Austria.ORCID 0000-0003-4328-6304
Johannes Kepler University of Linz · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bone material strength is determined by several factors, such as bone mass, matrix composition, mineralization, architecture and shape. From a clinical perspective, bone fragility is classified as primary (i.e., genetic and rare) or secondary (i.e., acquired and common) osteoporosis. Understanding the mechanism of rare genetic bone fragility disorders not only advances medical knowledge on rare diseases, it may open doors for drug development for more common disorders (i.e., postmenopausal osteoporosis). In this review, we highlight the main disease mechanisms underlying the development of human bone fragility associated with low bone mass known to date. The pathways we focus on are type I collagen processing, WNT-signaling, TGF-ß signaling, the RANKL-RANK system and the osteocyte mechanosensing pathway. We demonstrate how the discovery of most of these pathways has led to targeted, pathway-specific treatments.

Indexed as

Collagen Type IHumansOsteogenesis ImperfectaOsteoporosisRANK LigandReceptor Activator of Nuclear Factor-kappa BTransforming Growth Factor betaWnt Signaling PathwayCollagen Type IRANK LigandReceptor Activator of Nuclear Factor-kappa BTransforming Growth Factor betabone fragilityextracellular matrixJuvenile Paget diseaseosteogenesis imperfectaosteomalaciaosteopetrosispost-translational modificationstype I collagen

Identifiers

PMID33435159
PMCPMC7826666
OpenAlexW3120251443

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.