He began his career as a neurologist but turned his focus to research after a stroke claimed the life of his father, Lev.
"My father's premature death from stroke was a great shock for me and my family. He was a professor at the Novosibirsk Medical School in Russia - a productive academic and talented teacher, at the height of his career. Physically, he was very fit and had only a few cardiovascular risk factors," he said.
"When my father suffered a stroke, I asked myself, "Why?'. It was his tragic death that triggered my academic interest in studying stroke and how to prevent it."
Had his father known of his risk of suffering a stroke - and the importance of controlling his risk factors - he could still be alive, he said.