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1990s

1998
Psychiatry professor Sonia Lupien of the Douglas Hospital finds that high and sustained levels of cortisol, a stress hormone, can cause atrophy of the hippocampus, leading to memory impairment.
1994
Margaret Lock, professor of anthropology and social studies of medicine, publishes Encounters with Aging, a groundbreaking book that examines the cultural and medical contexts of menopause in Japan and North America.
1993
McGill researchers Denise Figlewicz, Guy Rouleau, Jun Goto and Aldis Krizus are the first to identify a gene that, when defective, causes the hereditary form of Lou Gehrig's disease.
McGill researcher Judes Poirier is the first to link Alzheimer's disease to apolipoprotein E (apoE), a protein found in the brain.
McGill researchers Philippe Gros and Emil Skamene isolate a gene in the mouse that acts as a defence against a number of infectious diseases, including tuberculosis and leprosy.
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