Stem Cell
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Paper Topic: Stem Cell [Name of writer appears here][Course name appears here] [Professor 's name appears here] [Date appears here] Stem Cell Cells that can differentiate into various cell types are called stem cells and include embryonic stem (ES ) cells and adult stem cells Because ES cells can become a new organism or can differentiate into any tissue type , they are said to be totipotent ‘ Adult stem cells , on the other hand , because they cannot (as far as we know ) become any type of tissue , are said to be pluripotent ‘ For example , bone marrow stem cells can become red blood cells , T-lymphocytes , or B-lymphocytes , but not muscle or bone cells
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Bush had made the decision to allow use only of about 60 existing cell lines , and not the production of embryonic cell lines specifically made for the purpose of use for stem cells (Kant Patel , Mark Rushefsky , 2005 Most of the stem cell procedures proposed to date would use the ES cells from embryos created by couples in fertility clinics
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Stem cell research attempts to engineer tissues from the body ‘s stem cells to replace defective , damaged , or aging tissues
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The ES cells from this new embryo would match the tissue in the person ‘s body , thus avoiding the potential tissue rejection problems that could arise in stem cell therapy
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Since then , researchers have conducted stem cell experiments on mammals and have had some success in repairing spinal chord injuries in mice Because scientists cannot use federal funds to conduct research on embryos , private corporations , most notably the Geron Corporation , have funded ES cell research
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The potential of stem cell research is enormous because so many diseases result from tissue damage
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Stem cell research could lead to advances in treating paralysis , diabetes , heart disease pancreatitis , Parkinson ‘s disease , liver disease , arthritis , and many other conditions
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1999 The Clinton administration sought to loosen the interpretation of the ban on embryo research to allow the government to sponsor research on the use of ES cells once they were available , but not on the derivation of those cells it is unclear how the Bush administration will react to this idea
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Another approach to stem cell research proposes that researchers create embryos for scientific and medical purposes
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Nerve stem cells can also become different types of nerve tissue
