The results indicated that IEG, as a transcription regular factor, may participate in the neurological toxicity damaging the learning and memory ability induced by lead.

这一结果提示第三信使IEG作为转录调控因子可能参与了铅对学习记忆损害的神经毒性过程。

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Loneliness is a widespread problem among older people, says the report, and the absence of regular visits from children is an important factor in this sense of isolation.

BBC: Many elderly isolated from far-away family, charity says

While X-Factor, remains by far the biggest regular hitter when it comes to TV-related tweets in the UK -- 3.7 million of the 38.7 million made about shows broadcast free-to-air on British television from April 1 to November 1 this year -- it is not just entertainment shows getting in on the act.

CNN: Tweets and apps give TV the X Factor

Barry will also be guaranteed regular first-team football at Eastlands -- a crucial factor in the build-up to the 2010 World Cup finals in South Africa.

CNN: Villa's Barry makes $20M Man City move