Oligosaccharide is the activated substance in the life movement.

寡糖是生命运动中的活性物质。

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Normally, t cells are activated by a complex series of signals that end with the destruction of the foreign substance.

正常情况下，T细胞会被复杂的信号系统激发，最终将异物消灭。

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Second, they caused lower levels of another substance, called adenosine monophosphate-activated protein kinase, which made it harder for them to burn fat that they had already accumulated.

第二种途径，它们使另一种物质产生减少，即腺苷酸活化蛋白激酶，这样一来小鼠很难消耗已经积聚的脂肪。

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Since substance P is activated in response to noxious stimuli, scientists long thought that it might be a central messenger for pain.

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