Open your mind

Critics say Chinese biology and medicine are uncontrolled - a sort of 'wild east'. After witnessing a bizarre operation on a drug addict's brain, David Adam is inclined to agree.

Animal rights protests barred

Injunction stops demonstrators approaching Oxford research lab.

Cure is more than skin deep

Medicine exploits genetic variations, not crude differences, writes David Adam.

Stem cell treatment offers hope for cardiac patients

Material could be gathered from someone's own heart, multiplied in the laboratory and used for repair and regeneration.