Menstrual Blood Shows Heart Repairing Stem Cell PropertiesScientists in Japan have discovered that cells taken from menstrual blood can be cultivated in the lab and used like stem cells to repair damaged heart tissue.The initial results of the work were published last week in the journal Stem Cells.VistaGen Collaborates With Canadian, U.S., And British Researchers To Isolate Earliest Embryonic Stem Cell-Derived Human Cardiac CellJoined by scientists from VistaGen Therapeutics here, a team of leading Canadian, American and British medical researchers have used embryonic stem (ES) cells differentiation cultures to successfully identify, grow and study the earliest cell destined to form the human heart. This novel cardiac stem cell is able to produce all three types of cells important to the cardiovascular system.Fly Lifespan Lengthened By Eliminating GermlineNew research by Brown University biologists shows that fruit flies live longer when they don't produce germline stem cells - the cells that create eggs and sperm.The work suggests a provocative general principle at work: Signals from reproductive tissue directly control lifespan and metabolism in the whole organism.Heart Cells Made From Embryonic Stem CellsA group of scientists from Canada and the US has successfully used embryonic stem cells to produce heart progenitor cells which are able to make three major types of cell essential for a healthy heart. The researchers said this discovery represents a significant step in the development of human heart tissue for use in heart repair and drug testing.Multipotential Stem Cells Could Be Provided By Menstrual BloodResearchers seeking new and more abundant sources of stem cells for use in regenerative medicine have identified a potentially unlimited, noncontroversial, easily collectable, and inexpensive source - menstrual blood.Stromal stem cells - cells that are present in connective tissues - have recently been identified in endometrial tissues of the uterus.
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