Tag Archives: Scientists

Can psychedelics treat anorexia, depression? U.S. scientists get millions to find out

Since childhood, Rachael Petersen had lived with an unexplainable sense of grief that no drug or talk therapy could entirely ease. So in 2017 she volunteered for a small clinical trial at Johns Hopkins University that was testing psilocybin, the active ingredient in magic mushrooms, for chronic depression. “I was so depressed,” Petersen, 29, said… Read More »

Scientists can now manipulate sperm to determine the sex of cattle. Will they do it with humans?

Sperm can be segregated into male and female, scientists have shown for the first time in a breakthrough experts say could have “disruptive social consequences” if applied to humans. Japanese researchers discovered that sperm bearing the X chromosome, which generates a female when it joins with the X chromosome of an egg, carries molecules which… Read More »

A Blood Test for Alzheimer’s? It’s Coming, Scientists Report

For decades, researchers have sought a blood test for beta amyloid, the protein that is a hallmark of Alzheimer’s disease. Several groups and companies have made progress, and on Thursday, scientists at Washington University in St. Louis reported that they had devised the most sensitive blood test yet. The test will not be available for… Read More »

How old are your organs? To scientists’ surprise, organs are a mix of young and old cells

Scientists once thought that neurons, or possibly heart cells, were the oldest cells in the body. Now, Salk Institute researchers have discovered that the mouse brain, liver and pancreas contain populations of cells and proteins with extremely long lifespans — some as old as neurons. The findings, demonstrating “age mosaicism,” were published in Cell Metabolism… Read More »

Scientists explain ‘mysterious tracks’ on floor of Belize’s Great Blue Hole

A giant underwater sinkhole located off the coast of Belize has grown in popularity over the years — for its size, deep blue colors and the mysteries that lie hundreds of feet below the ocean surface. The tourist attraction, which has been dubbed the “Great Blue Hole,” is a collapsed cave that measures approximately 984… Read More »