-氨基丁酸是有助于抑制特定神经细胞活动的自然化学信使。两组小鼠的大脑中-氨基丁酸感受器的数目以统计学上显著的方式改变。-氨基丁酸感受器在处理过的小鼠大脑的一些部分出现较多些,而在没有处理过的小鼠大脑内则少些。
Most intriguing of all, when Dr Bravo cut the animals vagus nerves-which transmit signalsbetween the gut and the brain-the differences between the groups vanished.
最引人注目的是,当布拉沃博士切断这些动物的迷走神经---传输肠道和大脑之间的信号---两组小鼠间的差异突然消失了。
The idea that gut-dwelling microbes can affect an animal s state of mind may strike somepeople as outlandish, and there are certainly loose ends still to be tied up.
这个想法---生活在肠道里的微生物能够影响动物的精神状态---可能给一些人留下稀奇古怪的印象,而且肯定还有一些零星问题有待解决。
Beyond their evidence that the vagus nerve is crucial to the relationship, for example, DrBravo and his colleagues do not yet know the precise mechanisms at work.
他们手头的证据无法证明迷走神经对动物之间的关系至关重要,比如,布拉沃博士和其同事至今还不知道其起作用的明确机制。
There is also an obvious follow-up question: whether a similar thing is going on in people.
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