Secondary injury mechanisms in traumatic spinal cord injury: a nugget of this multiply cascade

Charles Aidemise Oyinbo1

  • 1Department of Human Anatomy, Faculty of Basic Medical Sciences, College of Health Sciences, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria. charlesoyinbo@gmail.com.

Insights

Understanding secondary injury mechanisms is crucial for treating spinal cord injury (SCI). This article comprehensively catalogs over 25 secondary injury mechanisms, aiding researchers in developing effective therapeutic strategies.

Area of Science:

  • Neuroscience
  • Regenerative Medicine
  • Traumatology

Background:

  • Acute spinal cord injury (SCI) involves primary and secondary injury mechanisms.
  • Research predominantly focuses on secondary injury due to accessible therapeutic windows.
  • Primary injury is rapid and often beyond immediate therapeutic intervention.

Purpose of the Study:

  • To comprehensively catalog over 25 identified secondary injury mechanisms in SCI.
  • To provide an accessible, open-access resource for SCI researchers.
  • To aid in the development of targeted therapeutic strategies for SCI.

Main Methods:

  • Literature review and synthesis of existing research on SCI pathophysiology.
  • Compilation of identified secondary injury mechanisms into a unified catalog.
  • Publication of the catalog on an open-access platform.

Main Results:

  • A comprehensive catalog of over 25 secondary injury mechanisms in SCI has been compiled.
  • The catalog is available on an open-access portal for broad accessibility.
  • This resource consolidates scattered information, offering a versatile tool for researchers.

Conclusions:

  • Knowledge of secondary injury mechanisms is vital for effective SCI treatment.
  • This catalog provides a foundational resource for advancing SCI research and therapeutic development.
  • Improved understanding and accessibility of secondary injury mechanisms can accelerate the search for an SCI cure.

Related Concept Videos

Spinal Cord Injury ll: Pathophysiology01:14

Spinal Cord Injury ll: Pathophysiology

Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
Secondary Spinal Cord Injury llI: Pathophysiology01:25

Secondary Spinal Cord Injury llI: Pathophysiology

Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...
Neurogenesis and Regeneration of Nervous Tissue01:15

Neurogenesis and Regeneration of Nervous Tissue

In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
Spinal Cord: Information Processing01:10

Spinal Cord: Information Processing

The spinal cord is an integral hub for motor and sensory information that enables the brain to communicate with the peripheral nervous system (PNS). This communication consists of relaying sensory data and transmission of motor commands.
Sensory Information Processing
Sensory information processing begins at the sensory receptors located in the skin and other tissues, which detect somatic sensory stimuli such as touch, temperature, or pain. These receptors function as catalysts, initiating...
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
Spinal Cord01:26

Spinal Cord

The spinal cord, a critical component of the central nervous system, extends from the base of the brainstem to the lumbar region of the vertebral column. It is essential for maintaining physical stability and facilitating communication between the brain and peripheral parts of the body.