Evidence map›Paper›PMID 28574414›Full record

ArticleJournal of musculoskeletal & neuronal interactions2017

Impaired fracture healing with high non-union rates remains irreversible after traumatic brain injury in leptin-deficient mice.

F Graef, R Seemann, A Garbe, K Schmidt-Bleek, K D Schaser, J Keller, G Duda, S Tsitsilonis

Abstract read
In one paragraph

Article in Journal of musculoskeletal & neuronal interactions, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

13 citing papers in PubMed, 17 citations in OpenAlex.

  1. Physiologic impact of inflammation in the polytrauma patient.OTA international : the open access journal of orthopaedic trauma · 2025
    Article
  2. Bidirectional Interaction Between the Brain and Bone in Traumatic Brain Injury.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  3. Review
  4. [Research progress on mechanism of traumatic brain injury promoting fracture healing].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024
    Article
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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

8 authors at 1 institution in 1 country.

F GraefCenter for Musculoskeletal Surgery, Charité - University Medicine Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
R Seemann
A Garbe
K Schmidt-Bleek
K D Schaser
J Keller
G Duda
S Tsitsilonis
Charité - Universitätsmedizin Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Patients with traumatic brain injury (TBI) and long-bone fractures can show increased callus formation. This effect has already been reproduced in wild-type (wt) mice. However, the mechanisms remain poorly understood. Leptin is significantly increased following TBI, while its role in bone healing remains unclear. The aim of this study was to evaluate fracture healing in leptin-deficient ob/ob mice and to measure any possible impact of TBI on callus formation. 138 female, 12 weeks old, ob/ob mice were divided into four groups: Control, fracture, TBI and combined trauma. Osteotomies were stabilized with an external fixator; TBI was induced with Controlled Cortical Impact Injury. Callus bridging was weekly evaluated with in vivo micro-CT. Biomechanical testing was performed ex vivo. Micro-CT showed high non-union rates after three and four weeks in the fracture and combined trauma group. No differences were observed in callus volume, density and biomechanical properties at any time point. This study shows that bony bridging is impaired in the present leptin-deficient trauma model. Furthermore, the phenomenon of increased callus formation after TBI could not be reproduced in ob/ob mice, as in wt mice. Our findings suggest that the increased callus formation after TBI may be dependent on leptin signaling.

Indexed as

AnimalsBony CallusBrain Injuries, TraumaticFemaleFemoral FracturesFracture HealingLeptinMiceMice, ObeseRandom AllocationLeptin

Identifiers

PMID28574414
PMCPMC5492322
OpenAlexW2989015089

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.