
Stories by John Rennie
John Rennie is a former editor in chief of Scientific American.


Overview: Tolerating Self
Experience teaches the immune system to recognize the self

Anatomical Cartography
Computer maps reveal the topography of arthritis

Move Over, Mr. Spock
Sound-sensitive crystals bring computerized holograms to life

Of Mice and MS
Antibodies cure a crippling disorder-but not in people

Old Green Genes
An ancient magnolia's DNA reveals its evolutionary roots

Cancer Catcher
Neural net catches errors that slip through Pap tests

Tone of Relief
Ultrasound speeds the release of drugs from medical implants

Who's the Dealer?
What controls gene shuffling in the immune system?

Kissing Cousins
A DNA repair system stops species from interbreeding

Antibody Bonanza
Can two new techniques shake up biotechnology?

Nervous Excitement
Studies of nerve regeneration take a step forward

Old Gene, New Trick
The not-so-holy engrailed reveals the path of evolution

Hungry to Evolve?
Can mistakes and malnutrition explain Lamarckian bacteria?

Spacecraft on a String
Satellite "tethers " could provide power and thrust

In the Beginning
Evidence grows that RNA was the first self-made molecule