Russian scientists are the first in the world to unfreeze and start a heart

0
99
views
<pre>Russian scientists are the first in the world to unfreeze and start a heart

The main problem of modern cryonics (the science of freezing living tissues) is the difficulty in defrosting these tissues in such a way that the ice crystals do not damage the living material. Therefore, research is underway around the world to create a safe technology for “defrosting”. And the first in the world, this was done by domestic specialists from the Foundation for Advanced Studies (FPI) headed by Professor Anatoly Kovtun.


In a series of experiments, the heart of the frog was frozen at minus 196 degrees Celsius, and after 45 days it was successfully thawed and made restoration of activity of the body. Such success can be a real breakthrough in transplantology, because due to the prolonged cryopreservation of tissues and organs, they can be kept much longer than now. Moreover, some organs can be stored in special storage facilities and thawed as necessary, without forcing the patient to risk his life in anticipation of the donor body. Professor Kovtun stated in an interview with the RIA Novosti

“By the present time, the concept of vitrification of biological objects has been developed and experimentally substantiated on the cell, tissue and organ models, which provides freezing without crystallization in conditions of a 20-30 percent reduction in the total concentration of cryoprotectants . For example, in the rat aorta model, restoration of the endothelial and smooth muscle layers of the vessel at a level of 85-95 percent of living cells after freezing to cryogenic temperatures has been proven. “


Source link