Stem cells
Stem cells are one of the most interesting things in human body. Those magical cells are the source of every other cells. Those cells can be programmed to create something special tissue, like corneal stroma or for example bone tissue.
Nowadays by stem cell treathment are already restored eye sight for blind patients, whose have had problems in epithelium of cornea. In animal test has shown the power of stem cells treathments. For rats whose have had spinal cord injury is restored walking ability by stem cells. In labs and in animal test are already grown fully working corneas. The science is just taking the breaking throug step to restored eye sight to original after laser eye surgery.
The stem cells are really potetial parts to fix many different disease. Those has also the problems. The wrong programmed cell can create also cancer cells. This is the one reason why it takes time to find very usefull, safe and practical treathment for large number of humans.
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