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stell cells

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Introduction

Shanshan wang 5/27/06 cell bio Stem Cell Stem cells are one of the most fascinating areas in biology today. It brings us incredible possibilities of new medical treatment. Because stem cell is a very special type of cell which has the ability to develop into any different types of cell that could make up the body's tissues and organs. They could produce more and more stem cells and other types of cells for people's need. Stem cells are so useful that they illuminated many patients' hope. Now, I am going to illustrate how powerful they are. Stem cells are different from any other kinds of cells in our body because they have the ability to divide to infinite period. Unlike muscle cells and blood cells which could not replicate themselves, stem cells are able to duplicate many times and they would last for a long time. Another property that made stem cells special is they could become cells with special functions such as the repair of the skin and to make up the tissues in lung and other organs because they are unspecialized. There are two types of stem cells. One kind is adult stem cells. Another one is embryonic stem cells. ...read more.

Middle

Comparing to adult stem cells, embryonic stem cells from a donor introduced into a patient could cause transplant rejection. Nowdays, scientist conclude that embryonic stem cells have much more potential than adult stem cells because they are totipotent. Nowdays, the use of stem cells in medical field is still the most advancing technology around the world. However, after hundred years of developing, it is clear now that these cells can be used to treat and possibly cure, a wide variety of diseases. Stem cells therapy brought a new medical revolution. Normally, if some organs in our body is out of function. Doctor transplant a new organ into the body, but sometimes this method could lead to a deadly consequences because of the immune rejection. Stem cell therapy, on the other hand, attempts to treat the disease by introducing whole human cells into the body to retore the patient's health. Many researches had been done on stem cell field. Scientists hope to use stem cell to treat lots of incureble diseases. As we know, stem cells can change into many types of cells, heart, nerve ,muscle, skin, etc. Because of this capacity, stem cells could be used into many types of diseases. Perhaps the best-known stem cell therapy to date is the bone marrow transplant, which is used to treat leukemia, a cancer of the blood cells. ...read more.

Conclusion

Contrarily, medical researchers argued that the medical potential of stem cells worth to cost the destruction of the human embryos. The most recent issue in stem cell research has to do with President Bush. On August 9, 2001 who refused to allow research on any cell line created in the future so as to prevent the federal government from acting in a way that encourages the destruction of human embryo. The debate involves stem cells still varies from country to country nowdays. Although many people oppose stem cell research, I believe its benefits outweigh its costs. Many people argued that stem cell research is immoral because of the destruction of the embryo cells. However, when we look at the extraordinary benefit that stem cell could bring us, it definitely worth some cost. In the future, stem cells hold the most promising method to cure many diseases. A lot of tests and experiments are needed to prove that stem cells are perfectly safe for patients because the technology about stem cells now still remain in the first phase. Hopefully, the destruction of embryo cells could be solved by creating embryos in the future. The benefit of stem cell research is innumerable, if those problems could be solve, stem cell technology will bring many more advantages and soon it will bring us another revolution in medical field. Bibiography http://news.bbc.co.uk/1/hi/health/2849667.stm http://en.wikipedia.org/wiki/Stem_cell http://en.wikipedia.org/wiki/Adult_stem_cells http://stemcells.nih.gov/info/health.asp http://www.time.com/time/2001/stemcells/ stem cell research, written by joseph panno. ...read more.

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