We have plenty of existing stem cells within our body; then why don't we regenerate tissue?   As it turns out, stem cells require the right environment to repair tissue.  This environment, called the extracellular matrix, changes as we age and causes existing tissue repair cells to lose their ability to regenerate tissue.  TR BioSurgical is changing regenerative medicine by developing bioscaffold devices that mimic the optimal environment for our existing cells to repair and regenerate tissue; a new approach to tissue regeneration.   click here for abstract