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Related Concept Videos

Embryonic Stem Cells00:57

Embryonic Stem Cells

4.5K
Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
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Embryonic Stem Cells00:58

Embryonic Stem Cells

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Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
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Stem Cell Culture01:17

Stem Cell Culture

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Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
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Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

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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.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
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Induced Pluripotent Stem Cells01:06

Induced Pluripotent Stem Cells

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Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic...
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Induced Pluripotent Stem Cells01:13

Induced Pluripotent Stem Cells

27.0K
Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore...
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Related Experiment Videos

Stem cell research policies around the world.

Deepali Dhar1, John Hsi-En Ho

  • 1Yale University School of Medicine, New Haven, Connecticut 06511, USA. deepali.dhar@yale.edu

The Yale Journal of Biology and Medicine
|September 24, 2009
PubMed
Summary

Governments worldwide regulate stem cell research due to ethical concerns, resulting in diverse international policies. This study maps the varying legal and political landscapes governing stem cell science globally.

Area of Science:

  • Biomedical Science
  • Medical Ethics
  • Public Policy

Background:

  • Stem cell research is rapidly advancing, raising significant ethical and moral questions.
  • These complex issues have prompted governmental intervention in regulating stem cell science and its funding.
  • A lack of global consensus necessitates country-specific policy development.

Purpose of the Study:

  • To analyze the diverse international legal and political frameworks surrounding stem cell research.
  • To provide a comprehensive overview of the regulatory landscape for stem cell science across different nations.

Main Methods:

  • A comparative analysis of national policies and legislation related to stem cell research.
  • Cataloging and mapping the general legal and political milieu by country.

Related Experiment Videos

Main Results:

  • No uniform global policy exists for stem cell research regulation.
  • Each country has independently established its own unique set of rules and guidelines.
  • Significant variations in legal and political approaches to stem cell research are evident worldwide.

Conclusions:

  • The global regulatory environment for stem cell research is fragmented and country-dependent.
  • Understanding these diverse policies is crucial for researchers, policymakers, and international collaboration.
  • Future harmonization efforts may be challenged by deeply ingrained cultural and ethical viewpoints.