Sex, Sleep Deprivation, and the Anxious Brain.

Sex, Sleep Deprivation, and the Anxious Brain.
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DOI:
10.1162/jocn_a_01225
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发表时间:
2018-04
影响因子:
3.2
通讯作者:
Walker MP
Walker MP
中科院分区:
医学3区
文献类型:
--
作者:
Goldstein-Piekarski AN;Greer SM;Saletin JM;Harvey AG;Williams LM;Walker MP

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睡眠不足是焦虑的一个已知触发因素。然而,并不是每个人都经历了同样程度的这些影响。一个决定性因素是性别,其中女性比男性更容易因睡眠不足而产生焦虑。然而,控制这种睡眠不足引起的焦虑增加的潜在大脑机制,包括女性和男性明显不同的反应,尚不清楚。在这里,我们测试了这样的假设:情绪相关区域的离散网络中的结构性大脑形态代表了这样的解释因素之一。健康参与者在睡眠休息和睡眠剥夺条件下进行评估,大脑结构使用灰质体积测量进行量化。与男性相比,女性睡眠不足引发的焦虑程度更高。前额叶和外侧眶额皮质灰质体积的减少预测了女性睡眠不足的焦虑影响,但预测了男性的弹性,并且具有很高的辨别准确性。相比之下,腹内侧前额叶皮层的灰质体积预测了男性和女性睡眠不足的焦虑影响。因此,人类大脑的结构形态似乎代表了一种机制途径(和可能的生物标志物),它决定了焦虑对睡眠不足的脆弱性这一发现可能有助于解释女性睡眠中断和焦虑的高发率。
Insufficient sleep is a known trigger of anxiety. Nevertheless, not everyone experiences these effects to the same extent. One determining factor is sex, wherein women experience a greater anxiogenic impact in response to sleep loss than men. However, the underlying brain mechanism(s) governing this sleep-loss-induced anxiety increase, including the markedly different reaction in women and men, is unclear. Here, we tested the hypothesis that structural brain morphology in a discrete network of emotion-relevant regions represents one such explanatory factor. Healthy participants were assessed across sleep-rested and sleep-deprived conditions, with brain structure quantified using gray matter volume measures. Sleep loss triggered greater levels of anxiety in women compared with men. Reduced gray matter volume in the anterior insula and lateral orbitofrontal cortex predicted the anxiogenic impact of sleep loss in women, yet predicted resilience in men, and did so with high discrimination accuracy. In contrast, gray matter volume in ventromedial prefrontal cortex predicted the anxiogenic impact of sleep loss in both men and women. Structural human brain morphology therefore appears to represent one mechanistic pathway (and possible biomarker) determining anxiety vulnerability to sleep loss—a discovery that may help explain the higher prevalence of sleep disruption and anxiety in women.
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发表时间: 2010-01-13
期刊: The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子: --
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