Tag Archives: years

We’ve been using CRISPR for years – now we know how it really works

The CRISPR gene editing complexCARLOS CLARIVAN/SCIENCE PHOTO LIBRARY By Michael Le Page A storm of criticism met the claimed creation of the first genome-edited children in China last month. One reason is that the twin girls have unpredicted new mutations whose effects are unknown. But it now appears there’s a really easy way to ensure… Read More »

Weight-loss supplements contain dangerous stimulants years after being prohibited

Some sports and weight-loss supplements still contain experimental stimulant drugs that were prohibited years ago by the U.S. Food and Drug Administration (FDA), according to a new study. The study, published Oct. 22 in the journal JAMA Internal Medicine, analyzed 12 brands of sports and weight-loss supplements, looking for four potentially dangerous stimulant drugs that have popped up… Read More »