These physiological changes affect macrophages, fibroplasts, endothelial cells, mast cells, and nerve conduction rates.

http://www.accuvet.com/site/content/av7d_therapy_lasers.asp

Israeli scientists have developed a tough artificial skin from a widely available natural commodity in the country, human foreskins. The skin is grown in tissue culture from fibroplast cells taken from foreskins, which are enriched with growth factors and grafted on to a cow collagen base, participants at the European Association for the Study of Diabetes symposium were told.
http://www.diabetesaustralia.com.au/conquest/0004-globetrott...