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Related Concept Videos

Peripheral Nervous System: Ganglia and Nerves01:24

Peripheral Nervous System: Ganglia and Nerves

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The Peripheral Nervous System (PNS) is a crucial component of the body's neural network, extending beyond the central nervous system (CNS) to bridge the gap between the CNS and the external environment. It encompasses nerves, ganglia, and sensory receptors.
Nerves
The nerve is a bundle of axons that serves as the communication highway in the PNS. Each nerve is ensheathed in a protective layer of connective tissue called the epineurium. This outermost layer safeguards the nerve and supports the...
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Elastin is Responsible for Tissue Elasticity01:12

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Elastic fiber contains the protein elastin along with lesser amounts of other proteins and glycoproteins. The main property of elastin is that it will return to its original shape after being stretched or compressed. Elastic fibers are prominent in elastic tissues found in skin and the elastic ligaments of the vertebral column.
Ligaments and tendons are made of dense regular connective tissue, but in ligaments not all fibers are parallel. Dense regular elastic tissue contains elastin fibers and...
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Whole Body Regeneration01:33

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Regeneration is the process of restoring injured or lost tissues, organs, or body parts. While simpler organisms generally show greater ability to regenerate their whole body, few complex animals show similarly exceptional regeneration. For example, planarian flatworms have a unique regenerative potential making them a popular study organism among biologists to understand the mechanisms of whole body regeneration. Other organisms, such as hydra, also show extreme regeneration potential;...
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Liver Regeneration01:24

Liver Regeneration

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The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
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The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
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Overview of Regeneration and Repair01:19

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Regeneration and repair processes are critical in healing damages caused by injury, disease, and aging. In regeneration, the damaged tissue is entirely replaced with new growth that restores the original architecture and function. In contrast, tissue repair usually results in a fixed tissue architecture involving scar formation. Scars generally do not reestablish tissue function and may also exhibit structural abnormalities at the injury site.
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Spinal Nerves: Plexus II01:21

Spinal Nerves: Plexus II

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The plexuses of the lower body include the lumbar, sacral, and coccygeal plexuses, which innervate the abdomen, pelvis, legs, and coccygeal region. These plexuses control the transmission of sensory information and coordinate motor functions of the lower body.
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Related Experiment Video

Updated: Feb 14, 2026

Optimizing Attachment of Human Mesenchymal Stem Cells on Poly(ε-caprolactone) Electrospun Yarns
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Electrospun poly(caprolactone)-elastin scaffolds for peripheral nerve regeneration.

Katelyn E Swindle-Reilly1, Chinmay S Paranjape2, Cheryl A Miller3

  • 1Department of Biomedical Engineering, Saint Louis University, 3507 Lindell Blvd., St. Louis, MO, 63103, USA. kswindle@wustl.edu.

Progress in Biomaterials
|February 23, 2018
PubMed
Summary

Researchers explored electrospun scaffolds made of poly(ε-caprolactone) (PCL) and elastin for nerve regeneration. Elastin-containing scaffolds enhanced neurite outgrowth, showing promise for peripheral nerve repair.

Keywords:
Dorsal root gangliaElastinElectrospinningNanofibersPCLPeripheral nerve regeneration

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Area of Science:

  • Biomaterials Science
  • Neuroscience
  • Tissue Engineering

Background:

  • Peripheral nerve regeneration is crucial for recovery after injury.
  • Contact guidance from biomaterial scaffolds can promote neurite growth.
  • Poly(ε-caprolactone) (PCL) and elastin are biocompatible polymers with potential for nerve regeneration applications.

Purpose of the Study:

  • To investigate the potential of aligned and randomly oriented electrospun nanofibers of PCL and PCL:elastin blends to guide neurite outgrowth.
  • To assess the effect of elastin incorporation on scaffold properties and neuronal cell behavior.

Main Methods:

  • Fabrication of electrospun PCL and PCL:elastin nanofiber scaffolds.
  • Analysis of scaffold morphology and fiber diameter using scanning electron microscopy.
  • Culture of embryonic chick dorsal root ganglia on scaffolds to evaluate cell attachment and neurite extension.

Main Results:

  • Incorporation of elastin significantly reduced nanofiber diameter (PCL: 934 ± 58 nm vs. PCL:elastin: 519 ± 36 nm).
  • Elastin-containing scaffolds demonstrated preferential cell attachment and enhanced neurite extension (average 173.4 ± 20.7 μm).
  • Contact guidance was observed, with neurites extending along the direction of the fibers.

Conclusions:

  • Electrospun PCL:elastin nanofiber scaffolds show significant potential for enhancing peripheral nerve regeneration.
  • The presence of elastin in the scaffolds promotes neurite outgrowth and provides effective contact guidance.
  • These findings suggest that PCL:elastin scaffolds are a promising biomaterial for peripheral nerve repair strategies.