"Nobel-Winning Scientist Roger Guillemin Dies at 100, Stirred by Rivalries"

Roger Guillemin, a Nobel-winning neuroscientist known for his work on hormones controlling bodily functions, has died at 100. His career was marked by intense scientific rivalries, including a 10-year competition with his former partner Andrew V. Schally, which ended in them sharing the Nobel Prize in 1977, and a later rivalry with his collaborator Wylie Vale Jr. Guillemin's interest in brain control of the pituitary gland led him to a career in medical research, despite initially training to be a family doctor in France.