Professor James Fawcett, chairman of the Cambridge University Centre for Brain Repair, said other researchers had attempted to use c-Jun to repair damage to brain cells without success.

BBC: NEWS | Health | Cancer gene controls nerve growth

Late Wednesday, interviewers picked his brain as Citigroup (nyse: C - news - people ) said it'd join other U.S. majors including General Electric (nyse: GE - news - people ) and Coca-Cola (nyse: KO - news - people ) in following Buffett's mandate to expense stock options it gives employees.

FORBES: Faces In The News