Cell biologist Junying Yuan vividly remembers the moment when, during her second year of graduate school at Harvard University in 1983, a thin, restless Huntington’s disease patient was wheeled into her “Neurobiology of Disease” class. “I was appalled that modern medicine could do little for him,” she says. “He and others suffering from neurodegenerative diseases made a lasting impression on me. I became emotionally motivated to try to help these patients.”
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