Monday, December 30, 2019

Human Embryonic Stem Cells - 1916 Words

The human embryonic stem cells (hESCs) have defined by Bryant and Schwartz (2008) is in the mammalian embryo, there are several cell divisions that take place after the fertilization of the sperm and the egg in the uterus. There is no growth in the total volume of the cell, so the cells that are known as blastomeres get progressively smaller. Then, they are rearranging into a hollow ball known as blastocyst and surround the blastocoel which is a fluid-filled cavity. The blastocyts and then segregate into an outer layer called tropoblast and an inner cell mass (ICM). The tropoblast will form the placenta to the fetus while the inner cell mass that contains human embryonic stem cell will form the tissues of the fetus. According to Sandel and Phil (2004), the hESCs can cure and provide treatment for many kinds of disease such as Parkinson, Alzheimer, diabetes and spinal cord injury. But, ethical issues of hESCs research, therefore, overlap with those of the embryo research. On top of th at, De Wert and Mummery (2003) commented that the research of hESCs has high political and ethical agenda in many countries. Their use in the treatment of disease remains controversial regardless of their potential benefit. This is because their derivation from the early embryo. As Fischbach, Fischbach and others (2004) observe: Human embryonic stem cells offer the promise of a new regenerative medicine in which damaged adult cells can be replaced with new cells. Research is needed to determineShow MoreRelatedThe Human Embryonic Stem Cells910 Words   |  4 Pagesdiscovery of human embryonic stem cells, scientists have had high hopes for their use in treating a wider variety of diseases because they are â€Å"pluripotent,† which means they are capable of differentiating into one of many cell types in the body. However, the acquisition of human embryonic stem cells from an embryo can cause the destruction of the embryo, thus raising ethical concerns. In 2006, researchers introduced an alternative to harvesting embryonic stem cells called induced pluripotent stem (iPS)Read MoreHuman Embryonic Stem Cell Research1625 Words   |  7 PagesProduction and the Scientific and Therapeutic Use of Human Embryonic Stem Cells, the Pontifical Academy for Life presents the field of stem cell research with a statement regarding the official Roman Catholic position on the moral aspects of acquiring and using human embryonic stem cells.  They have declared that it is not morally legitimate to produce or use human embryos as a source of stem cells, nor is it acceptable to use stem cells from cell lines already established. Thus, bringing up the conflictingRead MoreHuman Embryonic Stem Cell Research2490 Words   |  10 PagesFederal Government to fund stem cell research through the National Institute of He alth. There are various types of stem cells, but the policy issue mainly covers human embryonic stem cells. This policy revokes President George W. Bush s executive order 13435 which put heavy limitations on federal funding for stem cell research. Although this policy has already taken effect, there are still bans and immense regulation on particular methods of human embryonic stem cell extraction that involve theRead MoreEssay on Human Embryonic Stem Cells 2138 Words   |  9 Pagesof a federal judge because of several issues that emerged with stem cell research being funded by the government. Although, the science of human embryonic stem cell is in its initial stages - there is much hope for scientific advancement due to the ability for human embryonic stem cells to grow into virtually various kinds of cells   Favorably, advocates for stem cell research and pharmaceutical companies strongly believe that stem cells may pave a way to discover new methods of treatment for devastat ingRead MoreHuman Embryonic Stem Cells ( Hescs )1627 Words   |  7 PagesEstablishment of iPSC The interest in developing human embryonic stem cells (hESCs) as a regenerative medicine has been prospering due to its pluripotency and indefinite self-renewal capacity since first discovered in 19981,2. However, the method to harvest hESCs by destroying embryos raised ethical concerns and thus the progress of this therapeutics has been impeded for years. Alternative approach was not achieved until the discover of induced pluripotent stem cells (iPSCs) by integrating a combination ofRead MoreHuman Embryonic Stem Cell Research992 Words   |  4 PagesThe liver is known in the medical community as a miracle organ because is it the only known organ in the human body that can regenerate itself if half of it is cut out. Tissue regeneration has always been a desirable fantasy, but now it is almost a possibility. Human embryonic stem cells are pluripotent cells that, although unspecialized, can differentiate into various specialized cells, such as nerves, muscle, skin, or even blood. Sadl y, controversy surrounds this relatively new scientific conceptRead MoreHuman Embryonic Stem Cell Research1313 Words   |  6 PagesJessica Rogers Kendra Gallos English III Honors 18 April 2016 Human Embryonic Stem Cell Research Human Embryonic Stem Cell Research, or HES cell research, is a very controversial ethical debate. This issues is a dilemma for scientist, religious activist, and many more. HES cell research is being disputed because the practice is morally wrong. The other side of the issue stands with many scientist, being that they see the potential lives it could save in the long run. Religious activist, andRead MoreHuman Embryonic Stem Cells : The Moral Dilemma898 Words   |  4 PagesHUMAN EMBRYONIC STEM CELLS: THE MORAL DILEMMA Stem cells are unspecialized cells capable of renewing themselves through cell division, even after long periods of inactivity. Stems cells can develop into many different cell types within the body during early life and growth. Stem cells can also serve as an internal repair of sorts inside many tissues. When a stem cell divides, it has the potential to either become another type of cell with a specialized function or remain a stem cell. The abilitiesRead MoreHuman Stem Cell Research : Ethical Dilemmas With The Utility Of Embryonic Stem Cells1879 Words   |  8 PagesTrevor McCarthy Human Embryonic Stem Cell (hESC) research possesses ethical dilemmas with the utility of embryonic stem cells (ESCs) derived from human blastocyst, one of the earliest stages of embryonic development. Embryonic stem cell derivation is controversial because there are different opinions and beliefs on when an embryo is deserving of full moral status, equal to the moral respect, rights and treatment to that of a human being. ESCs extracted from a blastocyst will undergo experimentationRead More Human Embryonic Stem Cell Research Essay4185 Words   |  17 PagesHuman Embryonic Stem Cell Research Many scientists believe that research on human embryonic stem cells, components of human embryos created in laboratories, will eventually yield cures to a number of devastating human conditions including juvenile diabetes, Parkinson’s disease and spinal cord injuries. On August 9, 2001, President George W. Bush announced he would permit federally funded research on existing stem cells lines derived from human embryos. He prohibited the federal funding of research

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.