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Researchers at the University of Sao Paulo in Brazil have discovered a way to sterilize organs intended for use in transplantation, thanks to a new use of light to eliminate any virus or bacteria that the donor could carry.
According to specialists, biophoton treatment will undoubtedly increase the number of available organs and reduce postoperative complications.
"At the present time, the sterilization of organs intended for transplantation does not exist.What is done is simply to draw blood, but the microorganisms remain alive." Or the organ is thrown away or, if there is no other way to avoid death, it is implanted still contaminated, "said the coordinator of the group of scientists, Vanderlei Bagnato, to EFE .
The procedure consists first of all in taking the blood from the organ and replacing it with an external tube, with a liquid keeping it alive.
This liquid is exposed to ultraviolet rays, which destroy the cell membranes of microorganisms and their DNA.
"The ultraviolet rays are applied to the outside of the body so as not to kill its cells, but rather to eliminate viruses and bacteria captured by the liquid," Bagnato said.
In contrast, in the liquid, substances sensitive to visible light and infrared are able to select viruses and bacteria.
Later, these light frequencies are applied to the organ and stimulate substances to oxidize microorganisms and to attack viruses such as hepatitis and AIDS.
According to the scientist, the liquid is used more than once because it remains very expensive.
The original experiments were performed on pig lungs, then on humans without grafts, and finally on patients.
Scientists believe that in the future, organ utilization can be improved, costs and waiting time reduced, and other transplants, such as heart and pancreas, are developed.
Australian Associated Press
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