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Arguments for stem cell research
Ethical theories stem cell research
Advantages of stem cell technology outweigh the disadvantages
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When scientists discovered that stem cells could be used to repair the human body, they created one of the biggest controversies of all time. Stem cells are bare cells discovered in the human corpse that contain the ability to produce identical copies of themselves for extended periods of time. Stem cells are different because they can operate to specialize into blood, brain, tissue, and muscle cells. Stem cells contain the capability to progress the field of medical treatment in a plethora of ways. There are two main types of stem cells that are called adult and embryonic. Both types are categorized by their potential to differentiate into other cell types Adult stem cells come from children and adults. Adult stem cells can change into only a certain amount of other cells. They can however split forever, thus allowing them to produce a range of cell forms. Embryonic cells come from a five-day-old human embryo that is in the blastocyst phase of development and are usually extra embryos from in vitro fertilization (IVF). They have the ability to specialize into around two hundred different cell types. Also in many tissues they can be a type of internal repair system, separating fundamentally with no constraint to refill other cells only if the thing is still breathing. Each new cell has the capability to stay a stem cell or become a different type of cell with a more particular role. Stem cells are disparate from other cell types because they are no specialized cells able to regenerate themselves through cell division. Adult stem cells live within the human body after embryonic development and are located within diverse types of tissue. These have been discovered in tissues like the brain, bone marrow, blood, blood vessels, skelet... ... middle of paper ... ...s to experiment, but embryonic stem cells are more flexible. The main issues involve opposition to stem cell research. People believe that conducting research on the embryonic stem cells should be avoided. Scientists have been researching for twenty years, yet there has not been an improved treatment or human trial. The side effects of embryonic stem cells included production of tumors and malignant carcinomas, transplant rejections, and the wrong kinds of cells are formed. The need for harvesting a woman's eggs for embryonic research increases the risks associated with cancer, infertility, memory loss, stroke, seizure, and death. The research increases the probability for increased possibilities for commercial exploitation of women to collect their eggs. Ronald D. G. McKay thinks many people believe in stem cells because they need a fairy tale or an ounce of hope.
Stem cells are the building blocks of the human body. Embryos consist of unspecialized stem cells that transform into the various specialized cells in the body such as cardiac, muscle or bone cells. Fetuses also have stem cells. However, the stem cells are divided into types like muscle, bone or nerves and don't perform a specialized function. Surprisingly, adult bodies also contain stem cells. In adults, stem cells are undifferentiated but limited to specific tissue type. When needed, the stem cells transform into the cells needed for repair and maintenance. The most common source of adult stem cells is bone marrow. Researchers also acquire stem cells from umbilical cords. Without stem cells, embryos could not develop into fetuses and adult
“Through the isolation and manipulation of cells, scientists are finding ways to identify young, regenerating ones that can be used to replace damaged of dead cells in diseased organs. This therapy is similar to the process of organ transplant, only the treatment consists of the transplantation of cells rather than organs. The cells that have shown by far the most promise of supplying diseased organs with healthy cells are called stem cells.” (Chapter Preface)
Stem Cells: What, How and Why? Stem cells are infinitely valuable when considering their potential applications in the medical profession. While current legislative restrictions have halted the development of new ?stem cell lines? to any agency or company that receives any form of governmental grants, there is no question that the medical profession is standing at the brink of a new era of technological advancements in healthcare and research.
Stem cells are undifferentiated cells that can differentiate themselves into specific cell type. There are two types of stem cells. The first one is the adult's stem cell. These stem cells can be found in various places in an adult human body, like the brain, the bone marrow or the liver. The other type of stem cells is the embryonic stem cells. These cells are found in embryos before its implantation in the mother's uterus. At this stage the embryo is divided in two types of cell. The first one is the outer cluster of cell that forms the embryo that will become part of the placenta once the embryo hatch. And the inner cluster is the source of embryonic stem cell since it consists of undifferentiated cell that will divide and differentiate to form all the organs and tissue needed in an adult organism. As stem cell are undifferentiated cell they can become whatever cell type is needed in an organism and could be the solution to diseases that are, at this date, incurable. (Medical News Today, 2013). Most of the ethic's problem of the stem cells researches come from the embryonic stem cell researches and how the cells are collected. Embryonic stem cells can be obtained in several ways. The first one is after a couple's fertility treatment, there might be some embryos left and the couple can decide to donate their embryos to research. The second option is to collect stem cells from a foetus after an abortion. And the last possibility is to use therapeutic cloning. Using an ovum from witch the nucleus was taken off and the nucleus of a somatic cell, the origin of this cell in the body doesn't matter, it can come from the skin for example, it is possible to create an embryo and get the stem cell from the created embryo. But in all of...
While many support embryonic stem cell research, some people oppose it say that it is an unethical practice. According to these people, embryonic stem cells require murdering a baby, human life is defined by rational beings, those capable of rational thought or a consciousness. In order to be rational one must have a consciousness, the ability to have thoughts and feel pain, to begin with. “For a fertilized egg, there is no consciousness and also no history of consciousness” (Stem). If abortions are allowed within the United States, why shouldn’t embryonic stem cell research be? Another claim against embryonic stem cell research is that it devalues human lives. “Some argue that researching embryonic stem cells will lead us into cloning technology” (Embryonic). While embryonic cloning is a possibility, we already possess the capabilities to clone so cloning is an invalid argument. The final argument against embryonic stem cell research is that there are alternatives, like adult stem cells. While adult stem cells may be utilized, they won’t be as effective. Embryonic stem cells are not only efficient but also renewable. They can be grown in a culture where as adult stem cells are extremely rare, if there are any. They can only be found in mature tissue. Isolating these extremely rare cells is challenging and has a high failure rate if not harvested correctly. “One major difference between adult and embryonic stem cells is their different abilities in the number and type of differentiated cell types they can become” (Stem). Using adult stem cells we might never understand our development from conception ...
Stem cells help us to maintain and heal our bodies, as they are undifferentiated cells, their roles are not yet determined. They have the ability to become anything during early life and growth. Stem cells come from two sources, namely: embryonic stem cells (embryo’s formed during the blastocyst phase of embryological development) and adult stem cells (see figure 3).
Stem cell research can date back to 1956 and has lead to multiple medical breakthroughs. Stem cells are generic animal cells that can make copies of themselves indefinitely. Therefore, these cells have to ability to become any body part or organ (Cowan). But, getting this resource is what brings up a controversy. Scientists and researchers are gathering human embryos to further study and test stem cells and some people don’t agree with this. The end result of using embryonic stem cells is someone being able to walk again, someone remembering the names of their children, and someone being able to say that he beat cancer. Stem cell research is beneficial to society and should be accepted into labs all around the world.
Stem cell research is one of the most widely expanding areas of scientific research being conducted all over the world today. In basic terms, stem cell research is the research of stem cells; however in actuality is much more complicated. A stem cell is a cell with the ability to develop into any of the cell types that make up the tissues and organs of the body. This makes these cells highly useful and provides endless opportunities in the field of regenerative medicine.
"What are stem cells and what are they used for?." 24 April 2001. HowStuffWorks.com. 22 July 2008.
Robertson, J. (2010). Embryo stem cell research: ten years of controversy. Journal Of Law, Medicine & Ethics, 38(2), 191-203. doi:10.1111/j.1748-720X.2010.00479.x
Embryonic cells should be allowed to be used because of the medical benefits they provide. They can be used to cure diseases such as Parkinson’s disease, diabetes, traumatic spinal cord injury, Duchenne’s muscular dystrophy, heart disease, and even vision and hearing loss (nih.gov 2009). There is no problem using them for medical purposes and it is not immoral to use them for this reason. Embryonic cells have the potential to save lives. Therefore, the usage of embryonic cells outweighs the ethical issues.
Within the past few years, scientist have made several breakthroughs with human stem cells. These breakthroughs have catapulted the issue of stem cell research into the middle of a national debate. Most people have no problem with the research itself, however the source of the stem cells (adult or human embryos) used in research is the primary cause of the debate. Some people feel that destroying an embryo is comparable to murder, even if the research it promotes may help people with serious illnesses. Other believe that an embryo is not a person and therefore research on an embryo is the same as research on any other group of cells.
On April 28, 2011 - the United States Appeals Court overturned the rule of 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 devastating ailments; such as, Leukemia, Alzheimer’s disease, Heart disease, Parkinson’s disease and diabetes- a prospect that is inspiring to both scientists and those who are seeking cures for themselves and family members. In contrast, numerous pro-life advocates are against federal funding for stem cell research because of the method in which these stem cells are extracted. In addition, several other groups argue that the federal government has abandoned more substantial as well as promising and less controversial adult and cord stem cell research. Instead, the government has dedicated a majority of their funding in favor of the more popular and controversial stem research. Ultimately, as long as humans exist - the need for a more extensive and technological progress will be abundant and crucial to humanity's survival. However, does the needs of the human species outweigh the potential lives embryos represent? With so much on the line, let us explore exactly what human embryonic stem cell (HESC) research is and what may be potentially weighing in the balance for the human race if we proceed down this road.
The issue of stem cell research first began on the scientific scene in November of 1998 when researchers first reported the isolation of human embryonic stem cells. The discovery, made by Dr. James A. Thomson, a biologist at the University of Wisconsin, Madison, offered great promise for new ways of treating diseases through stem cell use. The stem cells, which are derived from several-day-old embryos, can theoretically differentiate into virtually any type of human cell, ranging from blood cells to skin cells (American Association for the Advancement of Science, 2011). According to the American Medical Association (2013), a stem cell is an immature cell that has the potential to become specialized into different types of cells throughout the body. There are two basic types of stem cells: adult stems cells and embryonic stem cells. Embryonic stem cells are produced when a newly fertilized egg begins...
Opposing Viewpoints offers unbiased opinions on the future of embryonic research as well as how they have currently been used to cure many diseases. In addition, the article specifies how developing ethical standards to ensure that the use of embryos remains moral, allows for science to remain ethical. Many of the topics mentioned in this viewpoint consider bioethics and remain consistent throughout. Essentially, the purpose of this article was to establish a middle ground between ethics and science.