But the demand for cells is far greater than the supply, and an unlimited source of cells that could produce insulin would be a hot commodity. (sciencemag.org)
Also, a medium banana is an excellent source of cell - building vitamin B6 and is a good source of vitamin C and fiber. (jovinacooksitalian.com)
But Braude says cells that have never touched the mouse «feeder» cells or calf serum typically used to nourish human embryonic stem - cell lines are the safest source of cells for clinical trials. (scientificamerican.com)