Month: January 2024

Roy Calne, a British surgeon whose work on organ transplantation helped turn what was once considered impossible into a lifesaving procedure for millions of people around the world, died on Jan. 6 at a retirement home in Cambridge, England. He was 93.His son Russell Calne said he died from heart failure.There are groundbreaking surgeons and groundbreaking researchers, but very few people are both. Dr. Calne (pronounced “kahn”) was an exception: He developed and practiced many of the operating techniques involved in transplantation, while at the same time working to identify what drugs would get the body to accept a new…

There is a problem with the recently approved Alzheimer’s drug, Aduhelm. It can remove some of the amyloid that forms brain plaques that are hallmarks of the disease. But most of the drug is wasted because it hits an obstacle, the blood-brain barrier, that protects the brain from toxins and infections but also prevents many drugs from entering.Researchers wondered if they could improve that grim result by trying something different: they would open the blood-brain barrier for a short time while they delivered the drug. Their experimental method was to use highly focused pulses of ultrasound along with tiny gas…