He says the financial crisis should be seen as a wake-up call to change systems and ways of thinking, and to re-establish trust.

VOA: special.2009.01.23

Sometimes second messengers collect signals from a variety of different receptor systems, translate them into one kind of internal change, and the cell then just has to know about that one thing changing.

第二信使分子能够收集,来自不同受体系统的信号,将它们转化为同一种细胞内在的变化,这样细胞就只需对一种变化作出反应

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