Evidence map›Paper›PMID 8973865›Full record

ArticleClinical rheumatology1996

Intermittent compressive load stimulates osteogenesis and improves osteocyte viability in bones cultured "in vitro".

E Lozupone, C Palumbo, A Favia, M Ferretti, S Palazzini, F P Cantatore

Abstract read
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In one paragraph

Article in Clinical rheumatology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.9field-weighted citation impact, top 23% 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

10 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. The Osteocyte: From "Prisoner" to "Orchestrator".Journal of functional morphology and kinesiology · 2021
    Review
  3. Review
  4. Article
  5. Shifting paradigms on the role of connexin43 in the skeletal response to mechanical load.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2014
    Review
  6. The treatment of medial tibial stress syndrome in athletes; a randomized clinical trial.Sports medicine, arthroscopy, rehabilitation, therapy & technology : SMARTT · 2012
    Article
  7. Article
  8. Gap Junctions and Biophysical Regulation of Bone Cells.Clinical reviews in bone and mineral metabolism · 2010
    Article
  9. Article
  10. 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

6 authors at 2 institutions in 1 country.

E LozuponeInstitute of Human Anatomy, University of Bari, Italy.
C Palumbo
A Favia
M Ferretti
S Palazzini
F P Cantatore
University of Bari Aldo Moro · ITUniversity of Modena and Reggio Emilia · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The effect of mechanical stresses on osteogenesis, the viability of osteocytes and their metabolic activity in organ culture of bones intermittently loaded "in vitro" are reported. Metatarsal bones, isolated from 12-day-old rats, were cultured in BGJb medium (with 10% foetal calf serum, 75 micrograms/ml of ascorbic acid, 100 U/ml of penicillin and 100 micrograms/ml of streptomycin), in humidified air enriched by 5% CO2 and 30% O2, and loaded in our original device for 1/2 an hour at 1 Hz. homotypic isolated and unloaded bones, cultured in the same medium, were taken as controls. The ALP (alkaline phophatase activity) increases in the media of loaded bones in comparison with the control bones. The percentage of viable osteocytes is significantly greater in loaded than in control bones. TEM observations demonstrate that in both loaded and control unloaded bones, osteocytes show well developed organelle machinery and several gap junctions with adjacent cellular processes. In the cells of loaded bones, however, a higher number of cytoplasmic organelles and gap junctions were found. In particular, RER increases twice, gap junctions three times. The induced osteogenesis and the TEM observations demonstrate the suitability of this experimental model and support the recent advanced hypothesis according to which the mechanical loading may exert a trophic function on osteocytes, stimulating both the proteic synthesis in the above-mentioned cells and the cell-to-cell communication. Furthermore, the loading is likely to exert a biological stimulus on osteoblasts via signalling molecules produced by osteocytes.

Indexed as

Alkaline PhosphataseAnimalsCell SurvivalEndoplasmic Reticulum, RoughGap JunctionsMetatarsal BonesMicroscopy, ElectronOrgan Culture TechniquesOsteocytesOsteogenesisRatsRats, WistarStress, MechanicalWeight-BearingAlkaline Phosphatase

Identifiers

PMID8973865
OpenAlexW2327988131

What OpenQuestion holds

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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.