Neuroscience

How retrotransposons control the brain

Around half of the genome is made up of transposable elements or 'jumping genes' that derive from ancient viral integrations. They persist in various states of decay like an old fashioned 'pull your own' junkyard where parts ...

Medical research

Solving a biological puzzle: How stress causes gray hair

When Marie Antoinette was captured during the French Revolution, her hair reportedly turned white overnight. In more recent history, John McCain experienced severe injuries as a prisoner of war during the Vietnam War—and ...

Immunology

Gut throws cells overboard when chemical insults build up

A team of Duke researchers has discovered that cells lining the gut of zebrafish—and probably humans too—have a remarkable defense mechanism when faced with certain kinds of toxins: they hit the eject button.

Medical research

Lab-grown stem cells regenerate monkey hearts: study

In a step forward for organ regeneration, stem cells grown from a single monkey's skin cells revitalised the damaged hearts of five sick macaques, scientists reported Monday.

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