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Term paper on stem cells
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Farida Ezzat 900121295 Dr. Rania Siam Biology and Importance of Stem Cells in Medicine Stem Cells in medicine date back to the early 19th century. Many physicians have conducted studies on stem cells and the use of stem cells in treating diseases. From the start of its discovery until today, stem cell research has progressed a lot. In fact, the use of stem cells to treat patients has already begun in hospitals like The Boston Children’s Hospital. You’re probably wondering what I’m talking about. In this article, I’ll help you understand: what are stem cells? Why are they important? What kinds of diseases can they treat? And Finally, I’ll reference you to a few websites that can help you better understand stem cells. So, what is a stem cell? A stem cell is a special type of ‘starter’ cell that can grow into any kind of adult tissue. It is basically a ‘blank’ cell that can adapt and become a differentiate cell type like a nerve cell, a bone cell, or a skin cell. They are a foundation for every cell, tissue and organ in your body. What are the types of stem cells? There are two kinds o...
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
Stem cell research: Stem cells are cells that are at an early stage of development. This means they have the ability to turn into any type of cell in the body. Some research is currently focusing on whether stem cells can be turned into muscle cells and used to regenerate damaged muscle tissue (American Thoracic Society Consensus Statement, 2004).
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 can be thought of as blank slates or cells that have yet to become specialized. They can be transformed to become cells with special functions.
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.
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...
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 cells are mother cells that have potential to develop into a new different cell in the body. It can self-renew or multiply while developing into other types of cells, for example they can become cells of the blood, heart, bones, skin, muscles and brain. Stem cells were discovered in human cord blood in 1978, and in 1998, Thompson, from the University of Wisconsin, isolated cells from the inner cell mass of early embryos (early stage of an animal or person before it is born) and developed t...
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...
Stem cells can help cure diseases, repair damaged organs, and replace the need for organ donors. Stem cells may play a major role in cancer research, treatment, and maybe even a cure. Using stem cells in better treatments for diseases can give economic gains for society. According to the Mayo Clinic, over 100 million suffer from diseases that eventually may be treated more effectively or even cured with embryonic stem cell research (“Stem Cell Transplant”). This may be the greatest opportunity to alleviate the suffering of humans. Stem cell research has a lot of potential; there is a long list of diseases and other conditions that stem cells may be able to treat and possibly one day
This paper will be discussing the history of stem cells. There are many different ways to collect stem cells. Stem cells can be used for either right or wrong reasons. People can either use them to cure or to cause harm. Most people use stem cells to cure fatal illnesses. The one researcher that put stem cells out in the science world so people could understand it better was Leroy Stevens. His first encounter with stem cells was with a mouse that had a teratoma.
“Stem Cells: The Future of Medicine.” Medschool.umaryland.edu. University of Maryland School of Medicine Web 14 Nov 2013
Research on stem cells is advancing knowledge about how an organism develops from a single cell and how healthy cells replace damaged cells in adult organisms. This promising area of science is also leading scientists to investigate the possibility of cell-based therapies to treat disease, which is often referred to as regenerative or reparative medicine. There is genuine scientific excitement over the concept of using the body's own cellular building blocks to regenerate damaged or ageing organs. Stem cells are one of the most fascinating areas of biology today. But like ...
For decades, biologists have been using stem cells to figure out possible cures for different diseases and even prevent them. Stem cells are cells that can become useable in certain tissues in the body (according to an infant), or tissue cells that are already found in blood, bones, the brain, and skin (in adults or children). Stem cells are being used for patients with lymphoma (begins in the immune system), leukemia (cancer of white blood cells), and other types of blood disorders.
Stem cells are a key component of regenerative medicine. They are undeveloped cells capable of proliferation, self renewal, conversion to differentiated cells, and regenerating tissues. [1] In a developing