ArticleJOR spine2025
Human Disc Degeneration Is Accompanied by a Loss of Anterior Annulus Fibrosus Interlamellar Matrix Integrity as Assessed by Peel Tests.
Article in JOR spine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Potential Role of Mast Cells in Intervertebral Disc Ageing, Herniation Resolution, and Degeneration: Evidence and Lessons Learned from Studies of Mast Cells in Other Connective Tissues.International journal of molecular sciences · 2026Review
- Article
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Authors and funding
11 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Introduction: Disc degeneration (DD) is accompanied by biomechanical changes in the intervertebral discs. The lamellae of the annulus fibrosus (AF) are interconnected through the interlamellar matrix (ILM). The ILM contains interlamellar cross-bridges, connecting the lamellae radially in three dimensions. Weakening of the ILM and the cross-bridges could contribute to delamination between the lamellae, reducing their ability to resist loads and thus contributing to loss of AF integrity associated with the development and progression of degeneration. The objective of the present study was to quantify the differences in interlamellar mechanical properties of fresh AF samples from surgical DD individuals compared to AF samples from non-DD donors. Methods: An interlamellar peel test was performed on fresh AF tissue collected from DD surgeries ( Results: Samples from DD individuals had lower Peel Stiffness ( Discussion: The mechanical integrity of the ILM was determined to be lower in surgical DD individuals compared to non-DD donors. Aging alone may not have affected the results, and rather, loss of the integrity of ILM during disease progression appeared to have significantly contributed to the differences observed. This study provides new mechanical insights into the delamination often observed in the AF of surgical DD individuals. Future biochemical and immunolocalization studies, integrated with mechanical data, will aim to understand the role of collagen and elastin structure and composition in the decreased mechanical integrity of affected tissues.
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