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Radiation exposure may accelerate onset of Alzheimer's disease
Posted: Wed, Jan 2, 2013, 6:45 AM ET (1145 GMT)
Exposure to high-energy cosmic radiation on deep space missions could accelerate the onset of Alzheimer's disease and have other effects on the brain, scientists reported this week. Researchers exposed mice to levels of radiation similar to what astronauts would receive on a multi-year mission to Mars and then studied the effect the radiation had on the brain. They found an increased accumulation of beta amyloid, a protein "plaque" associated with Alzheimer's. The mice also showed signs of neurological impairment after exposure to the radiation. Scientists cautioned that the way the text was carried out, by giving mice a multi-year radiation dose in just a few minutes, could have exacerbated the effects of the radiation.
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news in brief
Soyuz launches Egyptian satellite
Posted: Thu, Apr 17 6:42 AM ET (1042 GMT)

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Posted: Wed, Apr 16 5:41 AM ET (0941 GMT)

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news links
Thursday, April 17
Orbital Announces First Quarter 2014 Financial Results
Orbital Sciences Corp. — 7:39 am ET (1139 GMT)
SKY Perfect JSAT Procures JCSAT-15 and JCSAT-16 Satellites
Sky Perfect JSAT Corp. — 6:24 am ET (1024 GMT)


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