Degenerative Osteoarthritis
Degenerative Osteoarthritis - Related Videos
01:27
Degenerative Disc Disease I: Introduction
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2026
Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...
09:26
The Monoiodoacetate Model of Osteoarthritis Pain in the Mouse
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Cited by 181 •
2016
Osteoarthritis (OA), or degenerative joint disease, is a debilitating condition associated with pain that remains only partially controlled by available analgesics. Animal models are being developed to improve our understanding of OA-related pain mechanisms. Here we describe the methodology for the monoiodoacetate model of OA pain in the mouse.
01:23
Degenerative Disc Disease ll: Pathophysiology
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2026
The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...
07:58
Establishment of a Surgically-induced Model in Mice to Investigate the Protective Role of Progranulin in Osteoarthritis
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Cited by 47 •
2014
We describe a protocol for the destabilization of the medial meniscus (DMM) model in mice, an effective tool for osteoarthritis (OA) research. In addition, we have demonstrated that deficiency of progranulincan exaggerate OA development and progression by using this model, indicating that progranulin plays a protective role in the pathogenesis of OA.
07:31
In Vivo Tracking of Human Adipose-derived Mesenchymal Stem Cells in a Rat Knee Osteoarthritis Model with Fluorescent Lipophilic Membrane Dye
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Cited by 2 •
2017
This protocol describes an efficient way to monitor the cell persistence and biodistribution of human adipose-derived mesenchymal stem cells (haMSCs) by far-red fluorescence labeling in a rat knee osteoarthritis (KOA) model via intra-articular (IA) injection.
FAQs
Mechanical stress, age-related tissue changes, and inflammatory signaling can act together to disturb cartilage homeostasis in Degenerative Osteoarthritis. Homeostasis refers to the balance that maintains tissue condition. Once this balance is disrupted, cartilage maintenance becomes less effective and extracellular matrix is lost, weakening the joint surface. These interacting influences help explain why progression is biologically multifactorial rather than driven by one factor.
Chondrocytes are cartilage cells that participate in maintaining the tissue’s extracellular matrix, the structural material surrounding cells. In Degenerative Osteoarthritis, loss of this matrix weakens cartilage’s cushioning surface and connects cellular changes with pain, stiffness, and reduced mobility. Studying chondrocytes and matrix integrity helps researchers investigate cartilage deterioration and strategies intended to preserve joint function.
Subchondral bone and synovial tissues should be considered alongside cartilage because joint deterioration involves interactions among several connected tissues. Cartilage changes can promote alterations in the bone beneath it, while synovial tissue provides additional biological context for understanding the joint. This systems perspective helps biologists relate tissue-level changes to symptoms and declining joint function.
Biological studies can ask which risk factors are associated with progression, how tissue interactions change, and which measurable features reflect joint deterioration. These questions connect mechanisms to outcomes such as pain, stiffness, and reduced mobility. They also guide development of imaging approaches, biomarkers, and treatments intended to relieve symptoms or preserve joint function.
Imaging and biomarker development support investigation of Degenerative Osteoarthritis and its progression. These approaches can help researchers characterize joint deterioration and connect observed changes with biological processes occurring in cartilage, bone, and synovial tissues. Their development strengthens research into disease progression and may support evaluation of strategies aimed at maintaining joint function.
Treatment research is directed toward two related outcomes: relieving symptoms and preserving joint function. This distinction matters because reducing pain or stiffness addresses the patient’s experience, while preserving function concerns mobility and the joint’s ability to support movement. Studying cartilage, bone, and synovial tissue interactions helps connect potential treatments with these intended outcomes.