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Stem Cells - Professor McDaniel The Roots of Stem Cells...

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Professor McDaniel The Roots of Stem Cells What if someone told you that today , work was being done to cure some of the most detrimental diseases mankind faces today? What if someone told you that a person close to you suffering from Alzheimer’s , Parkinson’s , or even paralysis could be given hope? Of course , you would say yes . But what’s the catch? You can never get something for nothing . Based on current medical technology , the most effective way of curing these diseases is through stem cell research . Only stem cells usually come from the tissue of fertilized zygotes , or aborted human fetuses . Now field the same question to the government of the United States of America , knowing the costs . There is no unanimous perception . Many in politics believe that the breakthroughs in stem cell research could save millions of lives , benefiting those across the glove . Others believe that the destruction of a young human life is immoral , therefore disregard the apparent advantages , and reject the research based on its procedures . The controversy over stem cell research is one of the most heated and debated issues in today’s society . Supporters of the research have been set in opposition against groups against abortion rights and conservatives . The very same battle also rages within individual people . Many people know that stem cells can be used to cure countless diseases , but they are not willing to sacrifice the life of an unborn human in order to save the life of someone who , when discussing Parkinson’s and Alzheimer’s , has already led a
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very full life . That is why the debate over stem cells is so difficult . While one may agree with one side , they could also very likely support the opposing view . In order to better understand the controversy surrounding stem cell research , one must first understand what , exactly , stem cells are . Stem cells come from human embryos , harvested in a laboratory . The fertilization is usually in-vitro , which means that the sperm is injected into the egg not in a human’s uterus , but in a test tube in a controlled atmosphere . A calendar day after the sperm successfully fertilizes an egg , the now called the zygote (the official name for the joined sperm and egg) , splits into a two celled embryo . The next day , the two cells split into four , and then finally into eight . Four or five days after the fertilization of the egg , the embryo is a bundle of cells known as a blastocyst . At this point , the blastocyst (which is now the size of literary period) can be implanted into a woman to carry along with the growth of the cells into a human being , frozen for use at a later date , or it can be used for scientific research . If it is decided that the blastocyst is to be used for stem cell research , the stem cells are removed from within , which inherently destroys the embryo .
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