Menstrual-phase-dependent differences in response to chronic variable sleep loss

总结 众所周知，睡眠不足与严重的短期和长期健康后果有关，但 迄今为止，人们对睡眠不足的性别差异的影响知之甚少。我们和其他人已经证明 当暴露在一个晚上，女性比男性有更大的神经行为表现障碍， 急性睡眠缺失此外，当按月经周期阶段分别检查这种影响时， 卵泡期表现出更大的损害相比，男性和女性在黄体期，这表明 可能是内分泌机制事实上，我们已经证明，这些性能差异可能是由 性类固醇介导的核心体温（CBT）变化，特别是涉及孕酮的比例 (P4)在卵泡期和黄体期之间增加到雌二醇（E2）。这些发现对以下方面具有重要意义： 了解睡眠不足和女性性激素对神经行为表现的相互作用， 其他健康后果。然而，一个重要的悬而未决的问题是， 在更现实的慢性睡眠丧失模式下，差异影响表现。数百万妇女经常 一周内每晚睡眠时间少于推荐的7-9小时，并试图补上睡眠 在周末。在男性中，我们已经证明，在这种恢复睡眠期间，任何明显的改善都是短暂的， 并且随后的睡眠缺失导致性能的更快恶化。目前尚不清楚这是如何 慢性睡眠丧失和恢复睡眠的可变模式影响女性在卵泡期的表现， 月经周期的黄体期。这项拟议的工作将填补这一重要的知识空白。在我们提出的 11-一天的住院研究，健康的绝经前妇女将被随机分配到慢性可变睡眠 缺乏（重复模式为两晚3小时卧床，随后一晚10小时卧床- 在床上，平均值相当于我们先前的研究）或睡眠饱足对照（整个过程中在床上10小时）， 她们月经周期的卵泡期或黄体期。这个协议将允许我们量化 慢性可变睡眠不足对女性神经行为表现的影响以及 到月经周期中的慢性可变睡眠缺失。我们还将研究CBT，P4和E2在 调解这些反应。作为探索性分析，我们还将评估慢性可变睡眠的影响 研究睡眠不足对女性性激素循环水平的影响 在月经周期中。 立即有

Summary It is well known that sleep loss is associated with significant short- and long-term health consequences, but to date the impact of sex differences in response to sleep loss are poorly understood. We and others have shown that women have greater neurobehavioral performance impairment than men when exposed to one night of acute sleep loss. Furthermore, when this effect is examined separately by menstrual cycle phase, women in the follicular phase exhibit greater impairment compared to both men and women during the luteal phase, suggesting a possible endocrine mechanism. Indeed, we have shown that these differences in performance may be driven by sex-steroid-mediated changes in core body temperature (CBT), specifically involving the ratio of progesterone (P4) to estradiol (E2) between the follicular and luteal phases. These findings have important implications for understanding the interactions of sleep loss and female sex hormones on neurobehavioral performance and other health consequences. An important open question, however, is how these menstrual-phase-dependent differences impact performance under more realistic patterns of chronic sleep loss. Millions of women routinely obtain less than the recommended 7-9 hours of sleep per night during the week and attempt to catch up on sleep on the weekend. In men, we have shown that any apparent improvement during such recovery sleep is transient, and that subsequent sleep loss results in more accelerated deterioration in performance. It is unknown how this variable pattern of chronic sleep loss and recovery sleep impacts performance in women during the follicular and luteal phases of the menstrual cycle. The proposed work will fill this important gap in knowledge. In our proposed 11-day inpatient study, healthy premenopausal women will be randomized to either chronic variable sleep deficiency (with a repeated pattern of two nights of 3 hours time-in-bed followed by one night of 10 hours time- in-bed, equivalent to our prior study in mean) or a sleep satiation control (10 hours time-in-bed throughout) during either the follicular or luteal phase of their menstrual cycle. This protocol will allow us to quantify both the impact of chronic variable sleep deficiency on neurobehavioral performance in women and differences in the response to chronic variable sleep loss across the menstrual cycle. We will also investigate the role of CBT, P4, and E2 in mediating these responses. As an exploratory analysis, we will also evaluate the impact of chronic variable sleep loss on E2 and P4 levels to investigate the effect of insufficient sleep on circulating levels of female sex hormones across the menstrual cycle. There is immediate