adj. neurotrophic
除其它因素之外，通过神经营养的因子存在与否决定神经元是否具有长久及健康的生命。
Whether or not neurons hae a long and healthy life is, apart from other factors, determined by the presence of neurotrophic factors.
他发现，在跑步机上锻炼的老鼠，其大脑中流过的脑源性神经营养因子水平有所提高。
He found that rats that exercise on a treadmill have raised levels of brain-derived neurotrophic factor coursing through their brains.
但是当给他们使用一种含有脑源性神经营养因子的药物后，恐惧消失了。
But when they were given a drug called brain-derived neurotrophic factor, or BDNF, they lost their fear.
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