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Here is Yvonne Perry's new blog www.right2recover.com. It contains info on her new book which I and several folks on our PIEN list have been contributing to. Her book goes to her publisher April 1. Look for it to come out soon and BUY IT!!! Ray Right to Recover Winning the Political and Religious Wars over Stem Cell Research in America. This blog discusses all types of stem cell research. Saturday, March 17, 2007 Define it, then call it what it is I do not call the research being done on blastocyst stem cells "embyronic" stem cell research because the research is not done on an embyro as most people imagine it. The research is performed using in-vitro blastocysts--a microscopic clump of cells that have no blood, no tissues, no organs. When an ovum is joined with a spermatozoon (whether in-vitro or inside the female body) fertilization occurs and the two parts become one cell. This is a fertilized egg also known as a zygote. Within hours this cell divides into two identical cells, which also divide. By the fourth day the cell cluster has divided to reach approximately 16 cells, and it is called a morula. The division/multiplication process continues for about five days until a hollow sphere of about 32 cells is formed along with a fluid filled cavity. This sphere or cluster of primordial cells is then called a blastocyst. A blastocyst has an inner and outer layer of cells. The outer layer (called the trophectoderm) will form the placenta and other tissue needed to support development in the uterus. The inner cells are undifferentiated or unspecific in what they will become but they are able to form any type of cell found in a human body. If the entire blastocyst is inserted into the uterus, it must implant itself and begin to draw nourishment from the mother in order to move to the next stage of development. IF implantation (conception) occurs, the resulting embryo will become a fetus at eight weeks which will develop into a human baby within nine months. The leftover in-vitro blastocysts used for stem cell research are cultured in lab containers outside the human body where a single cell may continue to divide up to 100 times. These newly developed undifferentiated cells are what researchers are studying. They are not little embryos with tiny toes and fingers. They are cells. Nothing but cells. Posted by Yvonne Perry at 6:03 AM Labels: Blastocyst, Embryonic Stem Cell, In-vitro Fertilization, Stem Cell Research 0 comments: Post a Comment Older Post Home Subscribe to: Post Comments (Atom) Coming Soon! Right to Recover: Winning the Political and Religious Wars over Stem Cell Research in America Blog Archive March (5) About Yvonne Perry Yvonne Perry Yvonne Perry is a freelance writer and researcher who enjoys assisting people with writing topics that inspire excellence and uplift the spirit. She is a graduate of American Institute of Holistic Theology where she earned a Bachelor of Science in Metaphysics. As a ghostwriter, Yvonne enjoys helping people get their message into a well-written book that is ready to publish. She is the owner of Write on! Creative Writing Services-a team of freelance writers located in Nashville, Tennessee. Yvonne has published several of her own titles. She authors a line of self-published children's books, The Sid Series builds self-esteem and empowers young ones to follow inner guidance and overcome fear. In 2005, Yvonne released More Than Meets the Eye: True Stories about Death, Dying and Afterlife, a book that address topics that many people are not comfortable talking about such as suicide, the near-death experience, end of life decisions, and euthanasia. The book is designed to help people release their fear of death, learn to communicate with those on the other side and comfort someone who is grieving the loss of a loved one. Read more at www.yvonneperry.net/books.htm. View my complete profile ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn