Mark Johnson

Author's posts

Newly discovered stem cell offers clues to a cancer mystery

The finding may help resolve a long-standing question: Why do far more cancer cells spread to the spine than to other bones in the body?

Scientists discover how dozens of genes may contribute to autism

Using a host of high-tech tools, Stanford researchers have found several dozen genes that interfere with brain development and may lead to autism.

This 6-year-old is a pioneer in the quest to treat a deadly brain tumor

Callie Weatherford is the second child in the world to receive an innovative treatment for DIPG, a brain cancer that is almost uniformly fatal.

What to know about the Biden administration’s drug price negotiations

Find out which 10 drugs were selected for Medicare price negotiations, how they were chosen, when to expect price changes and more.

NIH announces long covid treatment studies with hundreds of patients

Critics have said the response from the National Institutes of Health is long overdue.

New AI tool searches genetic haystacks to find disease-causing variants

PrimateAI-3D was trained on the genetic blueprints of 233 primate species to help scientists sift through millions of variants and find ones that can cause harm.

A new, more diverse human genome offers hope for rare genetic diseases

The first pangenome is based on the full genetic blueprints of 47 people from around the world.

Gene-edited cells move science closer to repairing damaged hearts

New research offers a path toward transplants that can fix damage from a heart attack without causing life-threatening arrhythmias.

After decades under a virus’s shadow, he now lives free of HIV

Paul Edmonds was diagnosed with HIV in 1988 and didn’t expect to survive. Now in full remission, he’s telling his story of a medical breakthrough to offer hope.

Biblical city yields unusual case of 3,500-year-old head surgery

The bones of two brothers exhumed from the ancient city of Meggido show that one underwent unsuccessful cranial surgery, possibly to treat an infectious disease