Doctors have performed a pig-to-human kidney transplant for the first time at Massachusetts General Hospital, the first hospital to perform a kidney transplant. The genetically modified kidney was implanted into a 62-year-old patient who had been diagnosed with end-stage kidney disease. They are recovering well and are expected to be discharged from the hospital soon. It is unknown how long the kidney will last for. This was the third transplant of a pig organ into a living human. The first two patients, who received heart transplants, died weeks after receiving their organs.

Trials of the world's first tooth regrowth medicine are set to commence in September at Kyoto University Hospital. The researchers behind the medicine hope to start selling it in 2030. There have been no major side effects confirmed in animal studies to date. The medicine deactivates a protein called USAG-1, which inhibits the growth of teeth. The medicine is currently targeted at patients congenitally lacking a full set of teeth.

A boy in the UK received a neurostimulator device in his skull to control seizures. The device has reduced his daytime seizures by 80%. The patient has a treatment-resistant form of epilepsy that sometimes causes him to suffer hundreds of seizures every day. He suffers a range of seizures, some of which require emergency medication to resuscitate him. The device, which can be recharged wirelessly, emits a constant pulse of current that aims to block or disrupt abnormal signals. While the device is not a cure, it has improved the patient's life significantly.

A highly controversial procedure called normothermic regional perfusion, which involves pumping blood through a deceased person's body, can help doctors retrieve donor organs even if patients have already been declared dead. The procedure greatly increases the chances of obtaining functional donor organs and could save a lot of lives. It stops organs from being damaged by keeping up the circulation of oxygen-rich blood. There are concerns that the procedure may be able to restore limited brain activity, but there are ways to stop blood from reaching the brain.