先前的研究证实大多数人都发觉自己不是在早晨就是晚上效率最高,这种对时间早晚的倾向性就是“睡眠类型。尽管已有很多关于这种睡眠类型效应的研究,但是,到目前为止,究竟是什么导致了这些差异却鲜有人研究。
"In this new study, we have used fruit flies (Drosophila melanogaster), whose gene clocks are very similar to a human's, to get a first insight into the molecular basis of ‘morningness/eveningness’ preference," explained team member Eran Tauber in a press release. "Because this genetic system is so similar between insects and humans, there is a good chance that some of the genes that we have identified in flies, would be also important for diurnal preference in humans."
“这项新研究,我们选用生物钟和人类十分接近的(黄猩猩)果蝇,以初步洞察其偏好‘早起还是晚起’的分子基础,研究队员埃兰·图博在资讯发布会上解释道。“因为昆虫和人类的遗传体系非常相似,一些我们在果蝇里发现的基因很有可能对人类倾向白天起到重要作用。
As part of their research, the team identified two different fly strains that were at their most active either in the morning, or the evening, and they then compared and contrasted their genes. They found nearly 80 genes that appear to be linked to the flies' chronotypes, but interestingly, these genes aren't ones that are known to regulate our body clock.Instead, they're involved in a range of molecular pathways.
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