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Related Concept Videos

Whole Body Regeneration01:33

Whole Body Regeneration

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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

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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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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.
Regeneration
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Stem Cell Therapy for Tissue Regeneration01:21

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Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
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Neurogenesis and Regeneration of Nervous Tissue01:15

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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...
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Chemical Reactions01:19

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A chemical reaction is a process by which the bonds in the atoms of substances are rearranged to generate new substances. Matter cannot be created or destroyed in a chemical reaction—the same type and number of atoms that make up the reactants are still present in the products. Merely, the rearrangement of chemical bonds produces new compounds.
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A Regeneration Toolkit.

Mayssa H Mokalled1, Kenneth D Poss2

  • 1Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO 63110, USA.

Developmental Cell
|November 7, 2018
PubMed
Summary
This summary is machine-generated.

Animals can regenerate body parts, a fascinating ability driving regenerative medicine. New genetic tools help scientists uncover the mechanisms of tissue regeneration in vertebrates.

Keywords:
gene editinglineage tracingmicemodel systemssalamandersstem cellstissue regenerationzebrafish

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Area of Science:

  • Regenerative medicine and developmental biology.
  • Comparative biology and evolutionary studies.

Background:

  • The capacity for tissue regeneration in animals has long captivated scientific inquiry.
  • Regenerative medicine is a rapidly advancing field focused on repairing or replacing damaged tissues.
  • Understanding innate regeneration mechanisms is crucial for therapeutic development.

Discussion:

  • Genetic tools have significantly advanced the study of tissue regeneration.
  • Investigating regeneration in vertebrates provides insights into conserved biological processes.
  • Methodological advancements are key to deeper mechanistic understanding.

Key Insights:

  • Vertebrate regeneration research benefits from sophisticated genetic and molecular tools.
  • Comparative studies across species reveal diverse regenerative strategies.
  • The field requires continuous innovation in experimental approaches.

Outlook:

  • Further methodological advancements will unlock deeper mechanistic insights into regeneration.
  • Developing new tools will accelerate discoveries in regenerative biology.
  • Translating findings from animal models to human therapies remains a long-term goal.