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Related Concept Videos

Overview of Cell Death01:30

Overview of Cell Death

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Cell death is an essential process where the body gets rid of old or damaged cells. Cell proliferation and death need to be balanced, as an imbalance between the two may lead to cancer or autoimmune diseases.
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...
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Cellular Injury IlI: Cellular Death01:11

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Cell death is the irreversible loss of cellular structure and function, representing the final stage of severe injury. It plays a key role in both normal physiology and disease.Types of Cell DeathThe two main types are necrosis and apoptosis, though others like necroptosis and pyroptosis also exist.Necrosis:Necrosis is an unregulated form of cell death caused by severe injury such as trauma, toxins, or ischemia. It is characterized by cell swelling, membrane loss, rupture, and leakage of...
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Cellular Injury IV: Necrosis01:16

Cellular Injury IV: Necrosis

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Necrosis is a form of irreversible cell death caused by severe injury such as ischemia, toxins, or trauma. Unlike programmed cell death, it is an uncontrolled, pathological process that typically provokes inflammation in surrounding tissues.Pathophysiologic ChangesNecrosis begins when cells sustain critical damage, leading to swelling of organelles, particularly mitochondria, and rapid ATP depletion. As energy levels decline, membrane ion pumps fail, leading to calcium influx and eventually,...
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Herniated Intervertebral Disc l: Introduction01:29

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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Degenerative Disc Disease I: Introduction01:27

Degenerative Disc Disease I: Introduction

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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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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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Related Experiment Video

Updated: May 1, 2026

A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.
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Cell death in intervertebral disc degeneration.

Fan Ding1, Zeng-wu Shao, Li-ming Xiong

  • 1Department of Orthopaedic Surgery, The First People's Hospital of Jingmen, Jingmen 448000, Hubei, China.

Apoptosis : an International Journal on Programmed Cell Death
|March 21, 2013
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Summary

Intervertebral disc (IVD) degeneration involves extracellular matrix destruction and cell death. Understanding cell death mechanisms offers potential therapeutic strategies for low back pain.

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Area of Science:

  • Biomedical Science
  • Cell Biology
  • Orthopedics

Background:

  • Intervertebral disc (IVD) degeneration, a primary cause of low back pain, involves extracellular matrix (ECM) destruction.
  • The precise mechanisms of cell death contributing to IVD degeneration remain unclear.
  • Cell death, including apoptosis and autophagy, is increasingly recognized as crucial in degenerative diseases.

Purpose of the Study:

  • To review the literature on cell death in IVD degeneration.
  • To discuss the role of cell death mechanisms and pathways in IVD degeneration.
  • To explore therapeutic strategies targeting cell death for IVD degeneration.

Main Methods:

  • Literature analysis of cell death in IVD.
  • Discussion of IVD degeneration inducing factors, NP cells, and ECM.
  • Review of apoptotic signal transduction pathways and cell death relationships.

Main Results:

  • Different stimuli induce cell death in IVD through various signal transduction pathways.
  • Cell death plays a significant role in the degenerative process of the IVD.
  • Apoptosis and autophagy are key types of programmed cell death involved.

Conclusions:

  • Cell death is a critical factor in intervertebral disc degeneration.
  • Targeting cell death pathways presents a promising therapeutic avenue for IVD degeneration.
  • Further research into cell death mechanisms can lead to novel treatments for low back pain.