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Impact of stem cells in the medical field
Essay on embryonic stem cells
Essay on embryonic stem cells
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Recommended: Impact of stem cells in the medical field
Kristen Stehle
Mrs. Brown
Biology
02 February 2016
Dear Mr. President,
Hello my name is Kristen Stehle, and I am a famous scientist that does crucial work requiring the use of Embryonic Stem Cells. I have recently been asked to spearhead a letter writing campaign to the president arguing for funding and availability of embryonic stem cells.
UNIQUE PROPERTIES
Stem cells are unspecialized cells that have the potential to separate to become specialized in structure and function into a wide variety of cell types. Stem cells are different from any other kind of cells in the body. All stem cells have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give
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One of the major differences between the two stem cells is their different abilities in the number and type of cells they can become. Embryonic stem cells have the potential to be any body cell because they are known to be pluripotent. On the other hand adult stem cells are thought to be limited to differentiating into different cell types of their tissue of origin. For example, you can only make muscle cells from adult stem cells found in …show more content…
You are able to use embryonic stem cells in the scientific community because the stem cells have the ability to produce replacement tissue such as muscle, bone and nervous tissue and would revolutionize medicine. Human stem cells are currently being used to test new drugs. All types of new medications are tested for safety on differentiated cells generated from human pluripotent cell lines. Other kinds of cell lines have a long history of being used in this way. For example, cancer cell lines are used to screen potential anti-tumor drugs. As for today, donated organs and tissues are often used to replace ailing or destroyed tissue. Stem cells, directed to differentiate into specific cell types, offer the possibility of a renewable source of replacement cells and tissues to treat diseases including macular degeneration, spinal cord injury, stroke, burns, heart disease, diabetes, osteoarthritis, and rheumatoid
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
The body is composed of cells, which form the basic unit of life. Unique cells found in the body are the stem cells. These cells are biological cells that are not specialized for particular functioning in organisms. They can be distinguished since they have the ability to differentiate or divide into multiple body cells, and their ability to replicate self. They are unique in the way they can renew themselves by undergoing cell division when inactive for a long period. It is also possible to induce stem cells to organs or tissue cells under some conditions. When the cells divide, they replenish the cells in a living organism. They serve as an internal system that repairs and replaces the tissues that are worn out.1 Dividing cells may remain as stem cells or become specialized in their functions, for instance red blood cells, brain or muscle cells.
The Nobel laureates' inaccurate letter to President Bush urging him to feed federal funds to human-embryo stem-cell research has had PR value in the media. It perpetuates a number of misconceptions and misleading statements regarding stem-cell research, particularly embryonic as opposed to adult stem-cell research, and will serve to continue to cloud the issue. Some of these deceptive statements are the subject of this essay.
Because stem cells are essentially a blank slate, scientists are theoretically capable of growing any human tissue cell. There is enormous medical potential in this. Stem cell research is the next step in advancing the medical field. It is comparable to the discovery of penicillin or the inoculation for smallpox.
Embryonic stem cells are derived from a four or five day old human embryo that is in the blastocyst phase of development (see figure 5). The embryo’s that are used for stem cell research, are extra’s that have been created in IVF clinics (in vitro fertilization), that are no longer needed. Embryonic stem cells are totipotent (cells with the potential to develop into any cells in the body). Scientists have discovered an alternative to embryonic stem cells, these cells ...
Stem Cells are cells that scientist have began to try and use to help people. “In the mid 1800s it was discovered that cells were basically the building blocks of life and that some cells had the ability to produce other cells.” With the discovery of stem cells came the opening to a new area of development in what could be done with health and medicine of the world. Of course throughout history, stem cells have been a very heated subject between different groups of people who believe it is right or wrong. Some people believe that this form of research is against ethical or moral values. They too see this as being wrong because they view human embryos as a form of life. These cells are neutral cells that can be turned into any other one that is needed at the time. Stem cells can make more of themselves when they aren’t being used allowing them to be ready when something happens. In the human body, stem cells help repair the tissue that has been broken, torn, or lost. They help fix bones, heal abrasions, and even repair internal organs if needed. Scientist have the ability now to mani...
This paper focuses on the benefits of stem cell research in the medical and nursing field. New technology is always being created to help us understand the way the human body works, as well as ways to help us improve diseased states in the body. Our bodies have the ability to proliferate or regrow cells when damage is done to the cells. Take for example the skin, when an abrasion or puncture to the skin causes loss of our skin cells, the body has its own way of causing those cells to regrow. The liver, bone marrow, heart, brain, and muscle all have cells that are capable of differentiating into cells of that same type. These are called stem cells, and are a new medical tool that is helping regrow vital organs in our body to help us survive. Stem cells can come from adult cells, or the blastocyst of the embryo. The cells that come from these are undifferentiated, and can be specialized into certain cell types, making them available for many damaged tissues in the body. While using stem cells in the body is a main use, they are also being used to help doctors understand how disease processes start. By culturing these cells in the lab and watching them develop into muscles, nerve cells, or other tissues, researchers are able to see how diseases affect these cells and possibly discover ways to correct these diseases. While researchers have come very far in using stem cells, there are still many controversies to overcome when using these cells.
Monroe, Kristen, et al., eds. Fundamentals of the Stem Cell Debate: The Scientific, Religious, Ethical and Political Issues. Los Angeles/Berkley: University of California Press, 2008. Print
In order to understand and comprehend the experiment being performed there were some words that are needed to be understood about planarians. Nuymber one is obviously what is a plnarian. Planarian: a free-living flatworm that has a three-branched intestine and a tubular pharynx, typically located halfway down the body. Stem Cell: an undifferentiated cell of a multicellular organism that can give rise to indefinitely more cells of the same type, and from which certain other kinds of cell arise by differentiation. Potency: The ability for stem cells to differentiate into specialized cells Multipotent: A type of stem cell that has the ability to become some but not all specialized cells
Due to public awareness of science, people started realise that the stem cells have the potential in developing cell-based therapies for many uncured diseases. Objectors claimed that it is morally wrong for the government to advocate stem cell research because the research demands embryos’ destruction (National Bioethics Advisory Committee [NBAC], 1999, as cited in Nisbet, 2004).’’It’s immoral that hundreds of thousands of embryos are discarded yearly instead of used to research cures for human suffering.” (Gilbert, 2008).In 2001, President George W. Bush made his stand to oppose the stem cell research by l...
Drugs can be tested on stem cells that develop into the target tissue before using it on human test subjects, which improves safety. Finally, transplantation of organs created from stem cells could eliminate the need for human organ donors.... ... middle of paper ... ... The 'Standard' of the 'Standard'.
Could you imagine being able to create new organs, tissues, muscles, and even food? With embryonic stem cell technology, believe it or not, these things are possible. Stem cells are the body's raw materials. Specifically, they are cells from which all other cells with specialized functions are generated. Under the right conditions in the body or in a laboratory, stem cells can divide to form more cells called daughter cells. These daughter cells either become new stem cells or turn into specialized cells with a more specific function, such as blood cells, brain cells, muscle cells or bone cells. The possibilities are almost endless. The debate and main issue with this technology is that the actual stem cells come from embryos. Embryos are an unborn or unhatched offspring in the process of development. Although there is controversy surrounding these cells, embryonic stem cells should continue to be researched and used, because they have so much potential.
.... It may take researchers to repeatedly try to receive the desired stem cell line. Adult stem cells are found in tissues that are already in their mature stage, and are limited on their flexibility. Adult stem cells cannot be storage for very long, and may have genetic defects.
Anderson, Ryan. "Stem Cells: A Political History." First Things. First Things, November, 2008. Web. 10 Feb 2012.
In President Barack Obama’s speech of 2009, he issued an executive order which lifted the ban on federal funding for embryonic stem cell research, placed by the President George W. Bush. Obama addresses important factors of why he removed the ban such as keeping innovative scientists in the country and the many future promises the research holds. The president is biased towards the future of using embryonic stem cells in his speech― he strongly supports them and strives to improve research opportunities. However, President Obama does acknowledge the downside effects that this research can bring such as the risk of human cloning and addresses how it will be prevented. This speech will support an embryonic stem cell argumentative essay by demonstrating the benefits this research can bring to the country.