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Innate immune mechanisms of infection: what we know and potential conserved mechanisms affecting sleep during infection 感染的先天免疫机制:我们所知道的和感染期间影响睡眠的潜在保守机制
Q2 Medicine Pub Date : 2025-05-01 Epub Date: 2025-04-21 DOI: 10.1016/j.nbscr.2025.100121
Mark R. Zielinski , Sean D. Carey , John A. Craig
Evidence indicates relationships between sleep and the innate immune system during homeostatic sleep and sleep responses after infection. The innate immune system and sleep-like states are highly conserved between simple species and more complex species such as humans. A wide variety of bacteria, viruses, and parasites change sleep patterns in the host during infection. The effects of infection on sleep can occur, in part, due to the bolus and route of infection, prior exposure, immune status of the individual/organism, and the type of pathogen. In addition, elements of circadian patterns and sleep prior to and after infection can modulate the infection pathology and resolution. Innate immune molecules, such as the cytokines interleukin-1 beta and tumor necrosis factor-alpha, fluctuate with the time of day of increased activity and sleep propensity, increase in response to increased waking activity from sleep loss, and are altered from infection by bacteria and viruses to alter sleep and the electroencephalogram. This review focuses innate immune mechanisms of how pathogen recognition receptors, pathogen-associated molecular patterns and danger-associated molecular patterns, energy-related molecules, oxidative stress, and inflammasomes are activated with infection to potentially affect sleep.
有证据表明,在体内平衡睡眠和感染后的睡眠反应期间,睡眠与先天免疫系统之间存在关系。先天免疫系统和睡眠状态在简单物种和更复杂的物种(如人类)之间是高度保守的。在感染期间,各种各样的细菌、病毒和寄生虫会改变宿主的睡眠模式。感染对睡眠的影响部分是由于感染的剂量和途径、先前的暴露、个体/生物体的免疫状态以及病原体的类型。此外,感染前后的昼夜节律模式和睡眠因素可以调节感染的病理和解决。先天免疫分子,如细胞因子白细胞介素-1 β和肿瘤坏死因子α,随着一天中活动增加和睡眠倾向的时间而波动,对睡眠不足引起的清醒活动增加的反应增加,并因细菌和病毒感染而改变,从而改变睡眠和脑电图。本文综述了病原体识别受体、病原体相关分子模式和危险相关分子模式、能量相关分子、氧化应激和炎症小体在感染时激活的先天免疫机制,以潜在地影响睡眠。
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引用次数: 0
Sleep in disease: inflammation and chronic rhinosinusitis 睡眠中的疾病:炎症和慢性鼻窦炎
Q2 Medicine Pub Date : 2025-05-01 Epub Date: 2025-04-26 DOI: 10.1016/j.nbscr.2025.100120
Vivek C. Pandrangi , Jeremiah A. Alt
Chronic rhinosinusitis (CRS) is a common inflammatory disorder that is associated with significant quality of life (QOL) impairment, including sleep dysfunction. There are multiple factors that have been independently associated with poor sleep among this population including alterations in inflammatory mediators, rhinologic symptom interference such as nasal discharge, obstruction, and facial pain, and co-morbid conditions including asthma. While there is a high prevalence of sleep dysfunction among this population, treatment with both medical and surgical options may lead to sustained improvements in sleep. This review aims to highlight the burden of sleep dysfunction, discuss common theories regarding the etiology, and evaluate strategies that may facilitate improvement in sleep dysfunction among patients with CRS.
慢性鼻窦炎(CRS)是一种常见的炎症性疾病,与显著的生活质量(QOL)损害相关,包括睡眠障碍。在这一人群中,有多种因素与睡眠不良独立相关,包括炎症介质的改变、鼻症状的干扰,如鼻溢液、梗阻和面部疼痛,以及包括哮喘在内的合并症。虽然这一人群中睡眠障碍的患病率很高,但药物和手术治疗可能会导致睡眠的持续改善。本综述旨在强调睡眠功能障碍的负担,讨论有关病因的常见理论,并评估可能有助于改善CRS患者睡眠功能障碍的策略。
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引用次数: 0
Metabolic signals in sleep regulation: the role of brown adipose tissue 代谢信号在睡眠调节中的作用:棕色脂肪组织
Q2 Medicine Pub Date : 2025-05-01 Epub Date: 2025-04-24 DOI: 10.1016/j.nbscr.2025.100122
Éva Szentirmai , Levente Kapás
The regulation of sleep, while primarily attributed to the interplay between circadian and homeostatic processes, is significantly influenced by a multitude of additional factors that profoundly impact sleep quantity and quality. These factors encompass both external environmental stimuli, such as ambient temperature and somatosensory inputs, and internal physiological changes. The intricate relationship between metabolism and sleep has been a subject of extensive research, with particular attention given to the role of metabolic signals in sleep regulation. Among these, the brown adipose tissue (BAT) has emerged as a key player, studied from various perspectives including its physiological responses to sleep deprivation, its effects on sleep when activated, the consequences of impaired BAT thermogenesis on sleep patterns, and its metabolic activity across different sleep states. The cumulative evidence from these investigations suggests that BAT plays a crucial role in maintaining an optimal metabolic environment conducive to sleep, a function that becomes particularly significant in contexts of prior sleep loss, inflammatory conditions, and fluctuations in ambient temperature.
睡眠的调节,虽然主要归因于昼夜节律和体内平衡过程之间的相互作用,但也受到许多其他因素的显著影响,这些因素深刻地影响着睡眠的数量和质量。这些因素既包括外部环境刺激,如环境温度和体感输入,也包括内部生理变化。新陈代谢和睡眠之间的复杂关系一直是广泛研究的主题,特别关注代谢信号在睡眠调节中的作用。其中,棕色脂肪组织(BAT)已成为一个关键角色,从多个角度进行了研究,包括其对睡眠剥夺的生理反应、激活时对睡眠的影响、BAT产热功能受损对睡眠模式的影响,以及它在不同睡眠状态下的代谢活动。这些研究的累积证据表明,BAT在维持有利于睡眠的最佳代谢环境中起着至关重要的作用,这一功能在先前睡眠不足、炎症条件和环境温度波动的情况下变得尤为重要。
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引用次数: 0
Association of restless legs syndrome and obesity: A sub-population of the MASHAD cohort study 不安腿综合征与肥胖的关系:MASHAD 群体研究的一个子群体
Q2 Medicine Pub Date : 2025-05-01 Epub Date: 2025-02-12 DOI: 10.1016/j.nbscr.2025.100113
Azam Vafaei , Fatemeh Khorashadizadeh , Maryam Saberi-Karimian , Sara Saffar Soflaei , Mahnaz Amini , Abolfazl Rashid , Sara Yousefian , Gordon A. Ferns , Habibollah Esmaily , Majid Ghayour-Mobarhan , Reza Salaran , Fatemeh Taherian

Introduction

Restless Legs Syndrome (RLS), as a relatively unknown sleep disorder, often associated with obesity. The purpose of this study was to examine the relationship between RLS and different definitions of obesity within the Mashhad stroke and heart atherosclerotic disorder (MASHAD) cohort study population.

Methods

A total of 1006 subjects, with an average age of 57 (51.75–63.00) years old, were randomly selected from the MASHAD cohort study phase II. This sample included 449 males and 557 females, who were contacted by phone to inquire about RLS. Anthropometric measurements such as weight, height, waist circumference (WC), and hip circumference (HC) were taken. Central obesity was defined as a WC > 90 cm for men and >85 cm for women, as well as a waist-to-hip ratio (WHR) greater than 0.90 for men and 0.85 for women. Statistical analyses were conducted using R version 4.3.2 for Windows, with a significance level set at a two-sided P-value<0.05. Chi-squared and Fisher's exact tests were used to compare the categorical variables between two study groups. Logistic models applied to evaluate the association between RLS and BMI while adjusting for age effects.

Results

The study found a significant relationship between RLS and employment status (p-value = 0.04), marital status (p-value = 0.05), and BMI (p-value<0.001). The results showed that in the total population, the OR of RLS in subjects having BMI>30 kg/m2 increased to 1.50(1.10–2.03) after adjusting for confounding factors (p-value<0.01). A BMI>30 kg/m2 increased odds of RLS by 1.72 times in males (95%CI: 1.03–2.84, p-value<0.05), however this association was diminished after adjustment (OR = 1.20, 95%CI: 0.64–2.17). There was no significant association between BMI and RLS in females. Moreover, there was no significant association between RLS and obesity based on WC and WHR in fully adjusted model respectively.

Conclusion

There was a significant association between BMI and RLS. A BMI>30 kg/m2 increased the odds of RLS by 1.50 times in the study population.
不宁腿综合征(RLS)是一种相对不为人知的睡眠障碍,通常与肥胖有关。本研究的目的是在马什哈德卒中和心脏动脉粥样硬化性疾病(MASHAD)队列研究人群中研究RLS与不同肥胖定义之间的关系。方法从MASHAD队列研究二期随机抽取1006例受试者,平均年龄57岁(51.75 ~ 63.00)。该样本包括449名男性和557名女性,通过电话联系他们询问睡眠倒睡症。测量了体重、身高、腰围和臀围等人体测量数据。中心性肥胖被定义为WC >;男性90厘米,女性85厘米,腰臀比(WHR)男性大于0.90,女性大于0.85。采用Windows版本R 4.3.2进行统计分析,显著性水平设为双侧p值0.05。使用卡方检验和Fisher精确检验来比较两个研究组之间的分类变量。在调整年龄影响的同时,应用Logistic模型评估RLS与BMI之间的关系。结果RLS与就业状况(p值= 0.04)、婚姻状况(p值= 0.05)、身体质量指数(p值<;0.001)存在显著相关。结果显示,在总人口中,体重指数为30 kg/m2的受试者的RLS的OR在校正混杂因素后增加到1.50(1.10 ~ 2.03)(p值为0.01)。体重≤30 kg/m2使男性发生RLS的几率增加1.72倍(95%CI: 1.03-2.84, p值0.05),但调整后这种相关性减弱(OR = 1.20, 95%CI: 0.64-2.17)。在女性中BMI和RLS之间没有明显的关联。此外,在完全调整模型中,基于WC和WHR的RLS与肥胖之间没有显著相关性。结论BMI与RLS有显著相关性。在研究人群中,体重≥30 kg/m2会使RLS的发生率增加1.50倍。
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引用次数: 0
No association between chronotype and cardiovascular response to a cognitive challenge in the morning using a Bayesian approach 使用贝叶斯方法,睡眠类型与心血管对早晨认知挑战的反应之间没有关联
Q2 Medicine Pub Date : 2025-05-01 Epub Date: 2025-05-09 DOI: 10.1016/j.nbscr.2025.100125
Larissa N. Wüst , Christian Cajochen , Ruta Lasauskaite
A chronotype is defined as a preference for certain behaviours (e.g., sleep and wake) to occur at specific times of day. It is therefore also temporally linked with cognitive performance across the day. In an exploratory analysis, we sought to find associations between chronotypes determined from self-reported habitual sleep timing and from salivary melatonin onset with mental effort during a 2-back working memory task. Mental effort was operationalized as sympathetic beta-adrenergic impact on the heart, which is best reflected by the cardiac pre-ejection period (PEP) and also influences systolic blood pressure (SBP). Each participant underwent two experimental sessions in the morning: once after sleeping for 8 h and once after sleeping for 5 h the night before. To determine the timing of evening melatonin onset, participants took saliva samples at hourly intervals at home in the evening, prior to their experimental sessions. Chronotypes were determined using reported sleep times from the Munich Chronotype Questionnaire and average melatonin onset during both sleep conditions. Based on this, participants were grouped into early, intermediate, or late types. Neither alertness (BF10 = 0.019), perceived task demand (BF10 = 0.008), nor SBP response (BF10 = 0.268) were credibly impacted by sleep-time derived chronotype, while the association with PEP response (BF10 = 0.631) during a cognitive challenge in the morning was inconclusive. Similarly, the timing of evening melatonin onset did not affect alertness (BF10 = 0.003), perceived task demand (BF10 = 0.006), or PEP or SBP response (PEP: BF10 = 0.232, SBP: BF10 = 0.263) during the cognitive challenge. Our data shows no impact of chronotypes on effort-related cardiovascular response during a cognitive challenge in the morning, which was scheduled according to habitual sleep times.
时间类型被定义为对特定行为(例如,睡眠和醒来)在一天中特定时间发生的偏好。因此,它也与一天中的认知表现有暂时的联系。在一项探索性分析中,我们试图发现自我报告的习惯性睡眠时间和唾液褪黑素在两回工作记忆任务中与精神努力之间的联系。精神努力被运作为对心脏的交感-肾上腺素能影响,这在心脏射血前期(PEP)中得到最好的反映,也影响收缩压(SBP)。每个参与者在早上进行两次实验:一次是在睡了8小时后,一次是在前一天晚上睡了5小时后。为了确定褪黑素在晚上起作用的时间,参与者在实验开始之前,每隔一小时在家里采集一次唾液样本。根据慕尼黑睡眠类型问卷报告的睡眠时间和两种睡眠状态下褪黑素的平均分泌量来确定睡眠类型。在此基础上,参与者被分为早期、中期和晚期。警觉性(BF10 = 0.019)、感知任务需求(BF10 = 0.008)和收缩压反应(BF10 = 0.268)均不受睡眠时间衍生时型的影响,而与早晨认知挑战时PEP反应(BF10 = 0.631)的关系尚无定论。同样,在认知挑战期间,夜间褪黑激素的发作时间并不影响警觉性(BF10 = 0.003)、感知任务需求(BF10 = 0.006)或PEP或SBP反应(PEP: BF10 = 0.232, SBP: BF10 = 0.263)。我们的数据显示,在早晨的认知挑战中,生物钟类型对与努力相关的心血管反应没有影响,这是根据习惯睡眠时间安排的。
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引用次数: 0
Impacts of traumatic brain injury severity and sex on sleep architecture, duration, and fragmentation 创伤性脑损伤严重程度和性别对睡眠结构、持续时间和碎片化的影响
Q2 Medicine Pub Date : 2025-05-01 Epub Date: 2025-05-15 DOI: 10.1016/j.nbscr.2025.100127
Grant S. Mannino , Tabitha R.F. Green , Sean M. Murphy , Michael R. Sierks , Mark R. Opp , Rachel K. Rowe
Traumatic brain injury (TBI) is frequently associated with acute and chronic disturbances in sleep architecture. However, the extent to which injury severity and biological sex influence post-traumatic sleep patterns remains underexplored in preclinical models. Here, we used a validated, noninvasive piezoelectric monitoring system to assess sleep in male and female mice following sham (n = 30), mild (n = 32), or moderate (n = 32) midline fluid percussion injury (mFPI). Physiological parameters were recorded non-invasively to determine sleep for 48 h post-injury. Hierarchical mixed-effects models were used to evaluate effects of injury severity and sex on sleep duration, architecture, and fragmentation. We found that sleep increased during the acute post-injury period regardless of TBI severity, but that sleep fragmentation was selectively elevated after moderate injury. Notably, female mice exhibited greater overall sleep disturbances compared to males, highlighting a sex-dependent vulnerability. These effects varied across the light-dark cycle. This study provides the first detailed characterization of sex- and severity-specific changes in sleep architecture and fragmentation following diffuse TBI using a high-throughput, noninvasive method. Importantly, it reveals that injury severity predicts the extent of sleep fragmentation highlighting a direct link between injury severity and disrupted sleep architecture. These findings contribute to the growing recognition of sleep fragmentation as a relevant biomarker in TBI and establish a framework for future mechanistic and interventional studies.
创伤性脑损伤(TBI)通常与急性和慢性睡眠结构紊乱有关。然而,在临床前模型中,损伤严重程度和生理性别对创伤后睡眠模式的影响程度仍未得到充分探讨。在这里,我们使用一种经过验证的无创压电监测系统来评估假性(n = 30)、轻度(n = 32)或中度(n = 32)中线液体撞击损伤(mFPI)后的雄性和雌性小鼠的睡眠。无创记录生理参数以确定损伤后48小时的睡眠情况。分层混合效应模型用于评估损伤严重程度和性别对睡眠持续时间、结构和碎片化的影响。我们发现,无论脑损伤的严重程度如何,急性损伤后的睡眠时间都有所增加,但中度损伤后,睡眠碎片性有选择性地升高。值得注意的是,与雄性相比,雌性小鼠表现出更大的整体睡眠障碍,突出了性别依赖的脆弱性。这些影响在光暗周期中有所不同。这项研究首次使用高通量、无创方法详细描述了弥漫性脑损伤后睡眠结构和碎片化的性别和严重程度特异性变化。重要的是,它揭示了损伤严重程度可以预测睡眠碎片的程度,强调了损伤严重程度和睡眠结构中断之间的直接联系。这些发现有助于人们越来越多地认识到睡眠碎片是创伤性脑损伤的相关生物标志物,并为未来的机制和干预性研究建立了框架。
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引用次数: 0
Mutual coupling of neurons in the circadian master clock: What we can learn from fruit flies 昼夜主时钟中神经元的相互耦合:我们能从果蝇身上学到什么
Q2 Medicine Pub Date : 2025-05-01 Epub Date: 2025-01-17 DOI: 10.1016/j.nbscr.2025.100112
Charlotte Helfrich-Förster, Nils Reinhard
Circadian master clocks in the brain consist of multiple neurons that are organized into populations with different morphology, physiology, and neuromessenger content and presumably different functions. In most animals, these master clocks are distributed bilaterally, located in close proximity to the visual system, and synchronized by the eyes with the light-dark cycles of the environment. In mammals and cockroaches, each of the two master clocks consists of a core region that receives information from the eyes and a shell region from which most of the output projections originate, whereas in flies and several other insects, the master clocks are distributed in lateral and dorsal brain regions. In all cases, morning and evening clock neurons seem to exist, and the communication between them and other populations of clock neurons, as well as the connection across the two brain hemispheres, is a prerequisite for normal rhythmic function. Phenomena such as rhythm splitting, and internal desynchronization are caused by the "decoupling" of the master clocks in the two brain hemispheres or by the decoupling of certain clock neurons within the master clock of one brain hemisphere. Since the master clocks in flies contain relatively few neurons that are well characterized at the individual level, the fly is particularly well suited to study the communication between individual clock neurons. Here, we review the organization of the bilateral master clocks in the fly brain, with a focus on synaptic and paracrine connections between the multiple clock neurons, in comparison with other insects and mammals.
大脑中的昼夜主时钟由多个神经元组成,这些神经元被组织成具有不同形态、生理和神经信使内容的群体,可能具有不同的功能。在大多数动物中,这些主时钟分布在两侧,靠近视觉系统,并由眼睛与环境的明暗周期同步。在哺乳动物和蟑螂中,两个主时钟中的每一个都由一个接收来自眼睛的信息的核心区域和一个产生大多数输出投影的壳区组成,而在苍蝇和其他几种昆虫中,主时钟分布在大脑的外侧和背侧区域。在所有情况下,早晚时钟神经元似乎都是存在的,它们与其他时钟神经元群体之间的交流,以及两个大脑半球之间的联系,是正常节律功能的先决条件。节律分裂和内部不同步等现象是由两个大脑半球的主时钟“解耦”或一个大脑半球的主时钟内某些时钟神经元的解耦引起的。由于苍蝇的主时钟包含相对较少的神经元,这些神经元在个体水平上被很好地表征,因此苍蝇特别适合研究单个时钟神经元之间的通信。在这里,我们回顾了双侧主时钟在苍蝇大脑中的组织,重点关注多个时钟神经元之间的突触和旁分泌连接,并与其他昆虫和哺乳动物进行了比较。
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引用次数: 0
Microglial depletion and repopulation differentially modulate sleep and inflammation in a mouse model of traumatic brain injury 在创伤性脑损伤小鼠模型中,小胶质细胞耗竭和再生差异调节睡眠和炎症
Q2 Medicine Pub Date : 2025-05-01 Epub Date: 2025-02-28 DOI: 10.1016/j.nbscr.2025.100115
Katherine R. Giordano , Tabitha R.F. Green , Mark R. Opp , Rachel K. Rowe
Traumatic brain injury (TBI) causes persistent sleep disturbances, leading to long-term neurological consequences and reduced quality of life. We hypothesized that microglial depletion via PLX5622 (PLX), a colony-stimulating factor 1 receptor (CSFR1R) inhibitor, would exacerbate sleep disturbances and alter inflammatory profiles after TBI, and that microglial repopulation would ameliorate these effects. Male mice received PLX or control diets (21 days) followed by a midline fluid percussion injury (mFPI) or sham surgery. Physiological parameters were recorded non-invasively to determine sleep for 7 days post-injury. Subsequently, PLX was withdrawn to allow microglial repopulation, and sleep was assessed during the 7-day repopulation period. In a subset of mice, repeated blood draws were taken to quantify sleep regulatory cytokine concentrations (interleukin [IL]-6, IL-1β, tumor necrosis factor [TNF]-α). TBI significantly reduced sleep in mice on a control diet during the light period (3, 5, and 7 days post-injury), but not the dark period. In PLX-treated mice, TBI did not alter sleep in the light period, however, sleep in the dark period was increased at 3 days post-injury. During the microglial repopulation period, PLX-treated TBI mice slept significantly more in the dark period compared to PLX sham mice and sleep was similar in control TBI vs PLX TBI mice. Analyses revealed that elimination of microglia did not alter baseline cytokine levels. IL-6 was elevated in PLX TBI mice at 1 and 7 days post-injury compared to TBI mice on control diet, while IL-1β and TNF-α remained unchanged. This study highlights the critical role of microglia in modulating post-TBI sleep and inflammation. Findings suggest differential effects of TBI on sleep depending on microglial depletion or repopulation status, with IL-6 serving as a marker of the inflammatory response in microglia-depleted conditions.
创伤性脑损伤(TBI)引起持续的睡眠障碍,导致长期的神经系统后果和生活质量下降。我们假设,通过集落刺激因子1受体(CSFR1R)抑制剂PLX5622 (PLX)消耗小胶质细胞会加剧TBI后的睡眠障碍并改变炎症特征,而小胶质细胞的再生会改善这些影响。雄性小鼠接受PLX或对照饮食(21天),然后进行中线液体撞击损伤(mFPI)或假手术。无创记录生理参数以确定损伤后7天的睡眠情况。随后,停用PLX以允许小胶质细胞再生,并在7天的再生期内评估睡眠。在一组小鼠中,反复抽血以定量睡眠调节细胞因子浓度(白细胞介素[IL]-6, IL-1β,肿瘤坏死因子[TNF]-α)。在光照期(损伤后3、5和7天),TBI显著减少了对照组小鼠的睡眠,但在黑暗期则没有。在plx治疗的小鼠中,TBI没有改变光照期的睡眠,但在损伤后3天,黑暗期的睡眠增加。在小胶质细胞再生期间,与PLX假组相比,PLX治疗的TBI小鼠在黑暗期的睡眠时间明显增加,而对照组TBI小鼠的睡眠时间与PLX治疗的TBI小鼠相似。分析显示,消除小胶质细胞不会改变基线细胞因子水平。与对照组TBI小鼠相比,PLX TBI小鼠损伤后1天和7天IL-6升高,而IL-1β和TNF-α保持不变。这项研究强调了小胶质细胞在脑外伤后睡眠和炎症调节中的关键作用。研究结果表明,脑外伤对睡眠的不同影响取决于小胶质细胞的消耗或再生状态,IL-6是小胶质细胞消耗条件下炎症反应的标志。
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引用次数: 0
Impact of domestic white LED light on cognitive functions and amelioration of blue light blocking lens (BBL) on healthy adults 家用白光LED对健康成人认知功能的影响及蓝阻晶状体的改善
Q2 Medicine Pub Date : 2025-05-01 Epub Date: 2025-04-17 DOI: 10.1016/j.nbscr.2025.100119
Mousumi Ghosh , Hari Prakash Palaniswamy , Nishitha. G , Stelyna Joylin , Shwetha. T.S , M. Sanjana , R.P. Radhika , Nagarajan Theruveethi
White light-emitting diodes (WLEDs) can affect cognition and working memory. Blue light-blocking lenses (BBL) may help alleviate this. We aim to study the relationship between WLED and the ameliorative effect of BBL. We included 15 healthy participants based on the PSQI and Mini-Cog™ screening. The eligible participants underwent a baseline recording of event-related potential (ERP) of P300 using electroencephalography (EEG) while performing a 2-back task, followed by exposure to WLED (600 lux) that was given (45° with 80 cm apart from the participant's eye plane) for 30 min. A similar protocol was maintained when BBL was worn with WLED exposure. The participants' mean PSQI and Mini-Cog™ scores (n = 15) were 3 and 5, respectively. The behavioral functioning of participants using a 2-back task revealed enhancement in working memory cognition by fastening the response time (ms) from base to post-WLED to post-WLED + BBL (p < 0.001). Still, no significant difference (p > 0.05) in accuracy (%) was observed. The learning effect in the control group using a 2-back task revealed no statistically significant difference (p > 0.05) in both accuracy (%) and response time (ms). Additionally, no significant change (p > 0.05) was found within the three light groups in latency (ms) and amplitude (μV) at the P300 region of ERP in the prefrontal cortex. The existing results found that domestic WLED exposure significantly leads to a faster response time in working memory performance in the prefrontal cortex, thus remaining alert. BBL is not protective in the nonvisual senses when exposed to WLED for 30 min.
白光发光二极管(wled)可以影响认知和工作记忆。防蓝光镜片(BBL)可能有助于缓解这种情况。我们的目的是研究WLED与BBL改善效果之间的关系。我们根据PSQI和Mini-Cog™筛查纳入了15名健康参与者。符合条件的参与者在执行双背任务时,使用脑电图(EEG)记录P300的事件相关电位(ERP)基线,随后暴露于WLED(600勒克)下(45°,距参与者眼平面80厘米)30分钟。当BBL与WLED暴露时,保持类似的方案。参与者的PSQI和Mini-Cog™平均分(n = 15)分别为3分和5分。使用双背任务的参与者的行为功能显示,通过将反应时间(ms)从基础到wled后再到wled后+ BBL (p <;0.001)。然而,没有显著差异(p >;准确度(%)为0.05)。使用双背任务的对照组的学习效果无统计学差异(p >;准确度(%)和反应时间(ms)均为0.05。此外,无显著变化(p >;3个光照组的潜伏期(ms)和幅值(μV)均显著高于对照组(0.05)。现有的研究结果发现,家用led暴露显著导致前额叶皮层工作记忆表现的反应时间加快,从而保持警觉。当暴露在led下30分钟时,BBL对非视觉感官没有保护作用。
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引用次数: 0
Investigating the resilience of kidneys in rats exposed to chronic partial sleep deprivation and circadian rhythm disruption as disruptive interventions 研究暴露于慢性部分睡眠剥夺和昼夜节律中断作为破坏性干预的大鼠肾脏的恢复能力。
Q2 Medicine Pub Date : 2025-05-01 Epub Date: 2024-11-30 DOI: 10.1016/j.nbscr.2024.100109
Shirin Rezazadeh , Saeed Rastgoo Salami , Mehran Hosseini , Henrik Oster , Mohammad Reza Saebipour , Mohammad Mehdi Hassanzadeh-Taheri , Hamed Shoorei
Sleep is a vital biological function that significantly influences overall health. While sleep deprivation (SD) and circadian rhythm disruption are known to negatively impact various organs, their specific effects on kidney function remain understudied. This study aimed to investigate the impact of chronic partial sleep deprivation and circadian rhythm disruption on renal function in rats, providing insights into the relationship between sleep disturbances and kidney health. A total of 40 male Wistar rats were divided into five groups: a control group, a group with circadian rhythm disruption (CIR), a group with sleep deprivation during the light phase (SD-AM), a group with sleep deprivation during the dark phase (SD-PM), and a group with combined sleep deprivation and circadian rhythm disruption (SD-CIR). Sleep deprivation was induced using a specialized machine, depriving rats of sleep for 4 h daily, while circadian rhythm disruption was achieved through a 3.5-h light/dark cycle. After four weeks, kidney tissues and blood samples were collected for histological and biochemical analyses. The results showed that all experimental groups exhibited reduced water intake, with the CIR and SD-CIR groups also showing significantly lower food intake and reduced weight gain compared to controls. Oxidative stress markers revealed increased serum malondialdehyde (MDA) levels in the SD-PM and SD-CIR groups. Despite these metabolic and oxidative changes, histological examination of the kidneys revealed no significant alterations in renal structure or function across the groups. This study highlights the negative effects of chronic partial sleep deprivation and circadian rhythm disruption on feeding behavior, weight gain, and oxidative stress in rats. However, these interventions did not significantly alter renal structure or function. Further research is needed to explore the physiological mechanisms underlying these findings and the potential long-term effects of sleep disturbances on kidney health.
睡眠是一项重要的生物功能,对整体健康有重大影响。虽然睡眠剥夺(SD)和昼夜节律中断已知会对各种器官产生负面影响,但它们对肾功能的具体影响仍未得到充分研究。本研究旨在探讨慢性部分睡眠剥夺和昼夜节律中断对大鼠肾功能的影响,为睡眠障碍与肾脏健康之间的关系提供见解。将40只雄性Wistar大鼠分为5组:对照组、昼夜节律中断组(CIR)、白昼期睡眠剥夺组(SD-AM)、黑夜期睡眠剥夺组(SD-PM)和睡眠剥夺和昼夜节律中断联合组(SD-CIR)。使用专门的机器诱导睡眠剥夺,每天剥夺大鼠4小时的睡眠,同时通过3.5小时的明暗循环来破坏昼夜节律。四周后,采集肾脏组织和血液样本进行组织学和生化分析。结果表明,与对照组相比,所有实验组的水摄入量都有所减少,其中CIR组和SD-CIR组的食物摄入量也显著降低,体重增加也有所减少。氧化应激标志物显示SD-PM和SD-CIR组血清丙二醛(MDA)水平升高。尽管有这些代谢和氧化变化,肾脏的组织学检查显示各组肾脏结构或功能没有明显改变。本研究强调了慢性部分睡眠剥夺和昼夜节律中断对大鼠摄食行为、体重增加和氧化应激的负面影响。然而,这些干预措施并没有显著改变肾脏结构或功能。需要进一步的研究来探索这些发现背后的生理机制以及睡眠障碍对肾脏健康的潜在长期影响。
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Neurobiology of Sleep and Circadian Rhythms
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