// BEGIN editorial data
 var i = 0;
var stemcell_science_wb3 = new Array();
stemcell_science_wb3.ID = "stemcell_science_wb3";
stemcell_science_wb3.ID_WB = 3275221;
stemcell_science_wb3.sPubDate = "1/28/2009 6:30:48 PM GMT";
stemcell_science_wb3.navsectionID = "3088327"
stemcell_science_wb3.appFmt = 2;
stemcell_science_wb3.itemsPerPage = 1;
stemcell_science_wb3.appWidth = 460;
stemcell_science_wb3.appHeader = "GUIDE|Stem cell research";
stemcell_science_wb3.appFooter = "Source: Associated Press, MSNBC research";
stemcell_science_wb3.appNavStyle = 3;
stemcell_science_wb3.appLayout = 3;
stemcell_science_wb3.copyHeight = 185;
stemcell_science_wb3.copyWidth = 360;
stemcell_science_wb3.copyMargin = 9;
stemcell_science_wb3[i++] = new Array("","Harvesting stem cells","","","","", "sub", "", "", "", "left-NW", "", "", "", "", "", "", "", "", "");
stemcell_science_wb3[i++] = new Array("","Step One","","http://www.msnbc.com/news/wld/health/brill/images/stemcell_science_1.jpg ","","", "", "", "", "", "left-NW", "", "", "140", "175", "#000000", "", "", "", "");
stemcell_science_wb3[i-1].body = "<font size=1>Embryonic stem cells used in research most often come from embryos left over after in vitro fertilization procedures.</font>  <p><b>Step One:</b> An egg is fertilized by a sperm in a lab dish.";

stemcell_science_wb3[i++] = new Array("","Step Two","","http://www.msnbc.com/news/wld/health/brill/images/stemcell_science_2.jpg ","","", "", "", "", "", "left-NW", "", "", "140", "175", "#000000", "", "", "", "");
stemcell_science_wb3[i-1].body = "<b>Step Two:</b> The fertilized egg begins to divide and develop into an embryo. About five days later, the embryo becomes a blastocyst -- a hollow ball of about 100 cells. The inner cells are the embryonic stem cells.";

stemcell_science_wb3[i++] = new Array("","Step Three","","http://www.msnbc.com/news/wld/health/brill/images/stemcell_science_3.jpg ","","", "", "", "", "", "left-NW", "", "", "140", "175", "#000000", "", "", "", "");
stemcell_science_wb3[i-1].body = "<b>Step Three:</b> Stem cells are removed from the blastocyst and cultured in the laboratory where they theoretically can multiply indefinitely.";

stemcell_science_wb3[i++] = new Array("","Step Four","","http://www.msnbc.com/news/wld/health/brill/images/stemcell_science_4.jpg ","","", "", "", "", "", "left-NW", "", "", "140", "175", "#000000", "", "", "", "");
stemcell_science_wb3[i-1].body = "<b>Step Four:</b> By adding and removing certain proteins, scientists can coax the cells to develop into new heart, bone, nerve or other cells. <br>";

stemcell_science_wb3[i++] = new Array("","Glossary","","","","", "sub", "", "", "", "left", "", "", "", "", "", "", "", "", "");
stemcell_science_wb3[i-1].body = "<b>Assisted reproductive technology:</b> Fertility treatments that involve a laboratory handling eggs or embryos, such as in vitro fertilization. <p><b>Blastocyst:</b> A preimplantation embryo of 30 to 150 cells. <p><b>Differentiation:</b> The process by which early unspecified cells acquire the features of specific cells such as heart tissue, liver or muscle. <p><b>Embryo:</b> The earliest stage of development from the single cell to implantation in the uterus. <p><b>Embryonic stem cell:</b> A cell from an embryo that has the potential to become a wide variety of specialized cell types. <p><b>In vitro:</b> Done outside the body. <p><b>In vivo:</b> Done within the living body. <p><b>Tissue or cell culture:</b> Growth of tissue in a laboratory dish for experimental research.";

	// END editorial data