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Related Concept Videos

Degenerative Disc Disease ll: Pathophysiology01:23

Degenerative Disc Disease ll: Pathophysiology

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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...
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Degenerative Disc Disease I: Introduction01:27

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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...
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Herniated Intervertebral Disc l: Introduction

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Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...
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Structural Joints: Cartilaginous Joints01:17

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As the name indicates, at a cartilaginous joint, the adjacent bones are united by cartilage, a tough but flexible type of connective tissue. Unlike synovial joints, these types of joints lack a joint cavity and involve bones joined together by either hyaline cartilage or fibrocartilage.
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Tension Response at Adherens Junctions01:26

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The adherens junctions that anchor cells together are multi-protein complexes that dynamically adapt to mechanical stimuli such as tensile forces and shear stress. Mechanosensory proteins in these junctions can sense such mechanical stimuli and undergo a shift in their conformation, resulting in an altered function — a process called mechanotransduction.
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Mechanically-gated ion channels are proteins found in eukaryotic and prokaryotic cell membranes that open in response to mechanical stress. Tension, compression, swelling, and shear stress can alter the conformation of the protein, opening a transmembrane channel that allows the passage of ions for signal transmission. In eukaryotes, mechanically-gated channels are distributed in several regions like the neurons, lungs, skin, bladder, and heart, where they play critical roles in numerous...
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Related Experiment Video

Updated: Apr 23, 2026

A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.
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Mechanotransduction in intervertebral discs.

Tsung-Ting Tsai1, Chao-Min Cheng, Chien-Fu Chen

  • 1Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan.

Journal of Cellular and Molecular Medicine
|October 1, 2014
PubMed
Summary

Mechanotransduction, the cell's response to physical forces, is vital for tissue health. This review explores its role in intervertebral disc health and degeneration, highlighting new research and therapies.

Keywords:
biochemical activitiesgene expressionintervertebral discsmechanotransductionphysical forcesprotein synthesis

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Area of Science:

  • Biomedical Engineering
  • Cell Biology
  • Orthopedics

Background:

  • Mechanotransduction enables cells to convert physical forces into biochemical signals, influencing cellular functions like proliferation and gene expression.
  • Dysfunctional mechanotransduction is linked to various diseases and degenerative conditions.

Purpose of the Study:

  • To review mechanotransduction in intervertebral discs (IVDs).
  • To focus on recent methods and findings concerning mechanotransduction in healthy and degenerated IVDs.
  • To discuss future research and therapeutic strategies.

Main Methods:

  • Literature review of recent studies on mechanotransduction in IVDs.
  • Analysis of current methodologies for investigating cellular responses to mechanical stimuli.
  • Synthesis of findings on mechanotransduction mechanisms and effects in IVD health and disease.

Main Results:

  • Mechanotransduction is crucial for maintaining intervertebral disc homeostasis.
  • Aberrant mechanotransduction contributes to intervertebral disc degeneration.
  • Novel methods are advancing the understanding of mechanotransduction in IVDs.

Conclusions:

  • Understanding mechanotransduction is key to addressing intervertebral disc degeneration.
  • Future research should focus on targeted therapies modulating mechanotransduction pathways.
  • Investigating mechanotransduction offers promising avenues for treating disc-related ailments.