A discussion of embryonic stem cells in science

However, IRBs usually do not carry out in-depth scientific review. The major research project chosen to be studied integrates data from different sources using multiple methods, including fieldwork, internal archival research, and interviews with 30 senior and junior scientists, embryologists and ethics committee members 15 females and 15 males associated with hESC science, from five academic SC research centres within Iran The seniors interviewed can be considered elites in that they all occupy positions in power networks.

There is no prohibition [on hESC research] in Iran and our policy is open-minded. Ethical, legal and socio-cultural aspects. We use SCNT in animal research and plan to carry out this technique for obtaining human stem cells which are genetically matched to the donor organism.

International Journal of Biotechnology. Typically there is a very small number of multipotent stem cells in each tissue, and these cells have a limited capacity for proliferation, thus making it difficult to generate large quantities of these cells in the laboratory.

Once discussion is finished and the graphic organizers have been completed, have students summarize what they have learned about stem cell research by creating a poster board sized display about stem cells. A second rationale is that people would not object to having their materials used in such a manner if they were asked.

Surely, that move could not have been accomplished without interaction between scientists and non-scientists-policy-makers and other actors who have an interest in hESC and the policies that affect it.

The crucial ethical issue about informed consent is not what researchers disclose in consent forms or discussions, but rather what the participants in clinical trials understand. One approach to avoid this is to preferentially use somatic cells from donors who are willing to allow all such basic stem cell research and to be contacted for future sensitive research that cannot be anticipated at the time of consent Allowing research to be carried out on the stem cell lines might allow some good to come out of their destruction.

To further the debate, while these cells are easily cultured, replicate quickly, and have a relatively long life, embryonic stem cells have not yet been successfully used to provide any kind of therapy for humans and pose risks such as tumor growth and rejection by the body.

After initial outgrowth was observed and the colony of blastomere-derived cells became large enough for passaging, GFP-negative colonies were marked under the fluorescence microscope and then mechanically dissected and re-plated; this procedure was repeated for several passages to ensure that the new cell lines were free of any contaminating GFP-expressing hESC.

Some people argue that consent from gamete donors is not required for embryo research because they have ceded their right to direct further usage of their gametes to the artificial reproductive technology ART patients.

These characteristics facilitate their low-density plating and subsequent isolation of subclones. Learn the similarities and differences between embryonic and adult stem cells. Based on the dominant narratives, this paper argues that Iran's policy on hESC research is 'more flexible', 'open-minded' and 'encouraging' rather than simply an 'intermediate' approach; and the science is closely intertwined with ethical, social, religious and legal considerations.

Stem Cell Research is a topic embroiled in much controversy.

Embryonic stem cell

Some consider all embryo research to be unacceptable; others only support some forms of research. Researchers have been trying to eliminate safety concerns about inserting oncogenes and insertional mutagenesis. As previously discussed, explicit consent for the use of reproductive materials in stem cell research should be obtained from any gamete donors as well as embryo donors 13 Using lines whose derivation violated core standards would erode ethical conduct of research by providing incentives to others to violate those standards.

While scientific and technological advances continue to provide new challenges, Shia jurists have used several principles of Islamic jurisprudence to find valid solutions without breaking Islamic law Saniei, a.

In the United States, laws prohibit the creation of embryos for research purposes. However, it is not permissible to transfer human somatic cell nuclear into animal eggs. While it might sound like space-age technology that we see in science fiction books and movies, imagine that it could actually be a reality.

However, these concerns are particularly salient for iPS cells because of the widespread perception that these cells raise no serious ethical problems and because they are likely to play an increasing role in stem cell research. Protecting reproductive interests of women in infertility treatment Use of stem cell lines derived at another institution Conflicting legal and ethical standards Stem cell clinical trials Risks and benefits of experimental intervention Informed consent Open in a separate window II.

Create two graphic organizers in the process. As a result of this, the embryo, which is a developing human life, is destroyed.

Embryonic Stem Cell

This paper uses the case of hESC science in Iran as a vehicle to explore the politics of innovation that shaped the co-production of science, policy and society. As discussed previously, in other research settings, research participants often fail to understand the information in detailed consent forms The development of stem cell lines that can produce many tissues of the human body is an important scientific breakthrough.

The similarity of mouse epiSCs to human embryonic stem cells has raised the possibility that signaling pathways between species are actually conserved, with the difference being that human embryonic stem cells represent a later developmental stage than mouse embryonic stem cells.In conclusion, we demonstrate that enabling crosstalk between embryonic and extra-embryonic stem cells in a 3D ECM scaffold is sufficient to trigger self-organization recapitulating spatio-temporal events leading to construction of embryo architecture and patterning.

Human embryonic stem cells are thought to have much greater developmental potential than adult stem cells. This means that embryonic stem cells may be pluripotent—that is, able to give rise to cells found in all tissues of the embryo except for germ cells rather than being merely multipotent—restricted to specific subpopulations of cell types, as adult.

Learn the two types of stem cells, embryonic and adult, and their characteristics.

Frequently Asked Questions (FAQs)

Address the following topics in class discussion: What are stem cells? discuss the science of using stem. Aug 09,  · Embryonic stem cells are harvested in two ways: from existing human embryos and from embryos that have been created using a cloning process known as somatic cell nuclear transfer (SCNT).

In both cases, the embryo is ultimately destroyed, which opponents of embryonic stem cell research argue is immoral. Keywords: Human embryonic stem cell science, Policy, Society, Religion, Iran Introduction The increasing use of human embryonic stem cell (hESC) lines for research and therapy, as an innovation pathway, has stimulated controversy internationally about the procurement, use and disposal of.

Both human embryonic stem (hES) cells and induced pluripotent stem (iPS) cells are pluripotent: they can become any type of cell in the body. While hES cells are isolated from an embryo, iPS cells can be made from adult cells.

Download
A discussion of embryonic stem cells in science
Rated 4/5 based on 68 review