Friday, April 17, 2009

Parkinson's Disease and Stem Cells

The Debate on using stem cells to cure diseases can be a confusing issue without a full understanding of stem cells. First let's start off by explaining what stem cells are. Stem cells are cells that have not decided what they are going to be or in other words differentiate into.  Stem cells can be obtained from embryos or from adults. Yes, we all have stem cells in us already. In adults stem cells act as a repair system for the body, replenishing specialized cells and maintaining the normal turnover of blood cells, organs and other tissues. For example, a red blood cell only last 120 days in the body and are replaced by stem cells in your bone marrow. Opponents of stem cells are against embryonic or fetal stem cells not stem cells that are obtained from adults. However, in order to raise opposition to stem cells curing disease opponents to stem cell research would want you to believe that all stem cells only come from embryos or fetuses. Adult stem cells have been used to treat leukemia and other bone cancers through bone marrow transplants. Cells can be taken from the body (the skin for example) and engineered into stem cells or stem cells can be taken from an adult. Then organs can be grown to save the lives of millions of people waiting on transplant lists. Also adult stem cells are good to use because the immune system is more likely to recognize those cells as belonging to you and not kill them with the body's immune system (Graft vs Host Disease). The are many companies today involved in stem research. President Obama has allowed stem cell research to qualify for federal support. California has committed $3 billion to a funded stem cell research funding  program.  What are your opinions about Stem Cells research? What do you want to know? 

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