Word: stroke
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Dates: during 1990-1999
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...seemed to have escaped the confusion and memory loss that make this form of dementia so devastating. The reason? As Snowdon and his team reported in the Journal of the American Medical Association last week, these nuns, unlike their counter-parts whose symptoms were severe, had not suffered from strokes--particularly the small strokes so commonplace in the elderly. Only 57% of the stroke-free nuns developed dementia, compared with 93% of nuns with a history of ministrokes...
...link between stroke and dementia is not new, but seldom has it been called out so clearly. One reason is that Snowdon and his team had access to a sizable control group and thus were able to compare brain tissue of normal people with that of diseased individuals. In 41 nuns who did not have Alzheimer's-like brains, researchers found, strokes caused no measurable decrease in overall mental competence. But in nuns with Alzheimer's, just one or two strokes--small strokes that left swirls of dead tissue no bigger than a pencil tip--were enough to trigger...
...much of human behavior is learned, not hardwired. So what practical results might come from his work? Balaban sees it as a first step toward a very different goal: learning enough about the structure and function of the brain so that when human brain cells are damaged, say by stroke, other cells might be recruited to take over...
...stroke of deja vu, this year's squad has endured the same rough season, number eight seed, and home preliminary round match-up. But can they successfully cross through the looking glass a second time...
...entertainment electronics, Sony invaded Hollywood in 1989 by buying Columbia and TriStar Pictures; in November 1994 the corporation took a $3.2 billion write-off for five years of studio mismanagement. Soon afterward, Sony co-founder Akio Morita, who had continued to help guide the company despite suffering a stroke in 1993, resigned as chairman. Then Sony found itself losing ground to rivals in the race to develop the digital videodisc, expected to replace the videocassette recorder and the compact disc...