Biotech

European regulators have approved two such treatments

US firm AquaBounty Technologies says that its transgenic fish has hit the market after a 25-year wait

A transport vehicle the size of a virus may ferry chemotherapies and other molecular cargo through the imposing blood–brain barrier

The findings hint at treatments that could restore the balance of brain activity

American researchers publish highly anticipated study using CRISPR in developing humans

Scientists have edited a human embryo, but we’re not in scary scifi territory by a long shot

A treatment aims to reverse long-term scar-tissue damage

Sophisticated software could help doctors make better diagnoses

New “expansion pathology” technique lets optical microscopes go where only electrons could go before

Reports suggest researchers have altered DNA and made few errors 

Transplanted cells offer middle-aged rodents an increased life span

Rather than being designed by chemists, this class of pharmaceuticals is produced by living cells. Here's where they come from and how they work