Word: fears
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Dates: during 1990-1999
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...alarmed by reports of severe reactions, a series of unsettling announcements by health authorities and contentious congressional hearings, not to mention fear-mongering on the Internet, a small but growing number of parents are contesting national vaccination policy...
...ordinary mouse embryos to create the strain they called Doogie. Then they ran the mice through a series of standardized tests--sort of a rodent sat. In one, the mice were given a paw shock while in a box; after a few rounds, they showed signs of fear from just being in the box, having learned that a shock was likely to follow. They learned in similar fashion to be afraid when a bell sounded--a variation on Pavlov's dog experiments. In each case, the Doogies learned faster than normal mice. The same happened with a novel-object test...
...death. That's what happens during a stroke: when brain cells are deprived of oxygen, they release huge amounts of glutamate, which overstimulates nearby NMDA receptors and kills their host cells. Nature may have designed NR2B-based receptors to taper off in adult brains for a reason. Some scientists fear that the altered mice may be prone to strokes. "You might worry about what happens when these animals get old," says neuroscientist Larry Squire of the University of California, San Diego...
Doctors and medical associations are disturbed by the antivaccine sentiment in some communities. They fear that it could erode public confidence in the nation's largely successful vaccination policies and lead to outbreaks of many infectious diseases now held in check by inoculations...
...read about the important discoveries that have been made in the past several years. Scientists are valiantly attempting to shine a flashlight down the long, dark tunnel of man's ancient past, and they have succeeded in illuminating certain truths. Shame on those who are allowing ignorance and fear to prevent students from having the chance to understand their place in the great chain of human evolution--for it is nothing short of miraculous. KRISTINA OLBERDING Cincinnati, Ohio...