Umbilical cord blood contains cells called Mesenchymal Stem Cells, that are capable of producing a variety of cell types, including muscle, bone and chondrocytes. Recently, a group of scientists in Brazil were able to produce Chondrocytes, the cells involved with cartilage production, using defined growth factors from Umbilical Cord Blood. This is important because the use of defined growth conditions will allow for the high yield production of a pure population of cells that will be suitable for clinical applications.