ArticleJOR spine2023
The influence of intervertebral disc overloading on nociceptor calcium flickering.
Article in JOR spine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 10 citations in OpenAlex.
- ISSLS Prize in Basic Science 2026: Early markers of mechanical modulation in whole bovine intervertebral discs loaded in a multiaxial bioreactor.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Article
- A multifactorial intervertebral disc degeneration model: Integrating inflammation, structural disruption, biomechanical parameters, and neural sensitization.Bioengineering & translational medicine · 2026Article
- Anterior column reconstruction with mono-segmental fusion and lag screw fixation of sagittal split for burst-split fracture of the thoracolumbar spine.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025Article
- Surgical management of symptomatic retroperitoneal migratory disc herniation anterior to the sacral ala causing L5 radiculopathy using direct decompression and fusion: illustrative case.Journal of neurosurgery. Case lessons · 2025Article
- Engineering Sensory Ganglion Multicellular System to Model Tissue Nerve Ingrowth.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Repetitive strikes loading organ culture model to investigate the biological and biomechanical responses of the intervertebral disc.JOR spine · 2024Article
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: Mechanical overloading can trigger a degenerative-like cascade in an organ culture of intervertebral disc (IVD). Whether the overloaded IVD can influence the activation of nociceptors (i.e., the damage sensing neurons) remains unknown. The study aims to investigate the influence of overloaded IVD conditioned medium (CM) on the activation of nociceptors. Methods: In the static loading regime, force-controlled loading of 0.2 MPa for 20 h/day representing "long-term sitting and standing" was compared with a displacement-controlled loading maintaining original IVD height. In the dynamic loading regime, high-frequency-intensity loading representing degenerative "wear and tear" was compared with a lower-frequency-intensity loading. CM of differently loaded IVDs were collected to stimulate the primary bovine dorsal root ganglion (DRG) cultures. Calcium imaging (Fluo-4) and calcitonin gene-related peptide (CGRP) immunofluorescent labeling were jointly used to record the calcium flickering in CGRP(+) nociceptors. Results: Force-controlled loading led to a higher IVD cell death compared to displacement-controlled loading. Both static and dynamic overloading (force-controlled and high-frequency-intensity loadings) elevated the frequency of calcium flickering in the subsurface space of CGRP(+) nociceptors compared to their mild loading counterparts. Conclusion: In the organ culture system, IVD overloading mediated an altered IVD-nociceptor communication suggesting a biological mechanism associated with discogenic pain.
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