The frozen kidney was used after one year

The kidney, which had been in minus 150 degrees for more than a year, came back to life; An achievement that can revolutionize the future of organ transplantation. The post Frozen kidney becomes functional after a year appeared first on Safir Arjan.

According to Ambassador Arjan, scientists have managed to reheat pig kidneys that were frozen at minus 150 degrees Celsius and in some cases were stored for more than a year and observed signs of their function returning. After leaving the freezer, washing chemicals and testing on special devices and pigs' bodies, these kidneys found blood flow again and started producing urine.

This research, which has not yet been scientifically reviewed, is considered an important step in the path of long-term preservation of organs for transplantation; A future method could allow doctors to store donated organs until a suitable recipient is found. Currently, human organs usually only last 24 to 36 hours.

To freeze the kidneys, the researchers first injected protective substances into them to prevent the formation of ice crystals and damage to the tissue. Then they inserted very fine particles of iron oxide into the kidney so that when rewarmed, using an electromagnetic field, the heat would spread evenly throughout the organ. This method was previously tested on mouse kidneys, but its implementation on larger pig kidneys required three years of refinement and testing. In experiments, the heated kidneys turned pink again and blood flow was restored. Even a kidney that had been kept frozen for more than a year produced urine immediately after being placed in the testing machine; However, the amount of urine produced in the examined samples was about two-thirds of the normal value.

Despite this success, the new method is not yet ready for use in human transplantation; Because the kidneys showed signs of tissue damage after being heated, possibly in part caused by chemical preservatives. Also, it has not yet been determined that these organs can maintain their normal function for a long time in the living organism. The researchers plan to continue the experiments on pigs for longer periods, find less toxic preservatives, and in the next steps, try the method on human kidneys. If these problems are solved, the possibility of long-term storage of organs can reduce the shortage of transplant organs, provide more opportunity to find a suitable recipient, and even in emergency situations, enable faster access to the needed organ.