Meghan Rosen

1 week ago | sciencenews.org | Meghan Rosen

Cathy Raley’s first bout of hives woke her in the middle of the night with itchy bumps that crept up her arms and spread to her legs and back. Her second bout took her to the hospital. It was a June afternoon in 2017, and she was getting ready to take her dog, Jake, on a hike. The hives started suddenly, when she was about to load Jake into the car, but this time was different, Raley says. Her tongue was swelling, and her throat was getting tight.

1 week ago | sciencenews.org | Meghan Rosen

Their names are Romulus, Remus and Khaleesi, and they’re the first dire wolves to walk the Earth in over 10,000 years — or so one biotech company and a flurry of recent headlines say. On April 7, Colossal Biosciences announced what they called the “world’s first de-extinction,” the births of three dire wolves, extinct animals that lived during the ice ages of the Pleistocene. The pups were instant icons.

2 weeks ago | sciencenews.org | Meghan Rosen

In late 2022, pharmacist Joseph Lambson got an unusual call from a poison control specialist. He said, “Hey Joe, I’m getting these weird calls about semaglutide.” According to the specialist’s calculations, people were giving themselves 10 times the correct dose. But that didn’t make sense. The drug is the key ingredient in the blockbuster diabetes and weight-loss medications Ozempic and Wegovy. Both come in prefilled injector pens, which typically take the guesswork out of dosing.

4 weeks ago | sciencenews.org | Meghan Rosen |Abby Wallace

Surgeons have now published the first report of a gene-edited pig liver transplanted into a person. The liver, which came from a genetically modified pig, appeared to stay active, producing bile and liver proteins inside the brain-dead transplant recipient, researchers reported March 26 in Nature. Such a transplant could one day buy time for people waiting on the liver transplant list.

1 month ago | snexplores.org | Meghan Rosen

3-D: Short for three-dimensional. This term is an adjective for something that has features that can be described in three dimensions — height, width and length. amino acids: Simple molecules that occur naturally in plant and animal tissues and that are the basic building blocks of proteins. antibodies: Any of a large number of proteins that the body produces from B cells and releases into the blood supply as part of its immune response.