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He J, Chan SH, Lin J, Tsang HW. Integration of tai chi and repetitive transcranial magnetic stimulation for sleep disturbances in older adults: A pilot randomized controlled trial. Sleep Med 2024; 122:35-44. [PMID: 39121822 DOI: 10.1016/j.sleep.2024.07.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 07/19/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024]
Abstract
BACKGROUND The arousal state has been demonstrated to be involved in the fundamental pathophysiological mechanism of sleep disturbances. Tai chi (TC) and repetitive transcranial magnetic stimulation (rTMS) have been documented to alleviate sleep disturbances by interfering with different arousal components. It is reasonable to assume that combining TC and rTMS could induce synergistic and longer-lasting benefits for sleep disturbances. METHODS Thirty-eight older community-dwelling people were randomly assigned to one of three groups: TC plus rTMS (n = 12), TC alone (n = 13), and treat-as-usual (TAU) (n = 13). The interventions were conducted three times per week for 4 weeks for the two intervention groups. The primary outcome was the insomnia severity, while the secondary outcomes were the actigraphy-assessed sleep patterns, use of hypnotic medications, mood states, and quality of life. The mediator outcomes included self-reported somatic arousal and cognitive arousal as well as electroencephalogram (EEG)-assessed cortical arousal. The assessments were conducted at baseline (T0), post-intervention (T1), and 3-month follow-up (T2). RESULTS Significant improvements in the insomnia severity were observed in the TC plus rTMS group compared with the TAU group at T1 (Cohen's d = 1.62, p = 0.003) and T2 (Cohen's d = 1.97, p < 0.001). In contrast, significant improvements in the TC alone group were found only at T2 (Cohen's d = 1.03, p = 0.010) when compared with the TAU group. Significant interaction effects were noted on the actigraphy-assessed sleep efficiency (p = 0.015) and total sleep time (p = 0.004), depression (p = 0.003) and stress scores (p = 0.002), and mental function in relation to quality of life (p = 0.042). However, none of the mediators elucidated how combining TC and rTMS could improve the insomnia severity. CONCLUSION The research findings are expected to guide further clinical practice in the management of sleep disturbances among older adults using various interventions. Future studies are needed to unravel the underlying mechanism and optimize the protocol to maximize the therapeutic benefits.
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Affiliation(s)
- Jiali He
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Sunny Hw Chan
- Centre for Health and Clinical Research, University of the West of England, United Kingdom
| | - Jingxia Lin
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; Mental Health Research Centre, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Hector Wh Tsang
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; Mental Health Research Centre, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
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2
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Ma Y, Mullington JM, Wayne PM, Yeh GY. Heart rate variability during sleep onset in patients with insomnia with or without comorbid sleep apnea. Sleep Med 2024; 122:92-98. [PMID: 39137665 DOI: 10.1016/j.sleep.2024.07.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/18/2024] [Accepted: 07/29/2024] [Indexed: 08/15/2024]
Abstract
OBJECTIVES Pre-sleep stress or hyperarousal is a known key etiological component in insomnia disorder. Despite this, physiological alterations during the sleep onset are not well-understood. In particular, insomnia and obstructive sleep apnea (OSA) are highly prevalent co-morbid conditions, where autonomic regulation may be altered. We aimed to characterize heart rate variability (HRV) during sleep onset as a potential measure of pre-sleep hyperarousal. METHODS We described the profile of pre-sleep HRV measures and explore autonomic differences in participants with self-reported insomnia disorder (with no OSA, n = 69; with mild OSA, n = 70; with moderate or severe OSA, n = 66), compared to normal sleep controls (n = 123). Heart rate data during the sleep onset process were extracted for HRV analyses. RESULTS During the sleep onset process, compared to normal sleep controls, participants with insomnia had altered HRV, indicated by higher heart rate (p = 0.004), lower SDNN (p = 0.003), reduced pNN20 (p < 0.001) and pNN50 (p = 0.010) and lower powers (p < 0.001). Participants with insomnia and moderate/severe OSA may have further deteriorated HRV outcomes compared to no/mild OSA patients with insomnia but differences were not significant. Insomnia itself was associated with significantly higher heart rate, lower pNN20, and lower high frequency power even after adjustment for age, gender, BMI and OSA severity. CONCLUSIONS Participants with insomnia had lower vagal activity during the sleep onset period, which may be compounded by OSA, reflected in higher heart rates and lower HRV. These altered heart rate dynamics may serve as a physiological biomarker for insomnia during bedtime wakefulness, or as a potential tool to evaluate the efficacy of behavioral interventions which target bedtime stress.
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Affiliation(s)
- Yan Ma
- Osher Center for Integrative Health, Division of Preventive Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States.
| | - Janet M Mullington
- Sleep and Inflammatory Systems Laboratory, Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States
| | - Peter M Wayne
- Osher Center for Integrative Health, Division of Preventive Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Gloria Y Yeh
- Osher Center for Integrative Health, Division of Preventive Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States; Division of General Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
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3
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Marques DR, Gomes AA, de Azevedo MHP. Daytime sleepiness in insomnia: Are we focusing on what truly matters? Chronobiol Int 2024; 41:1068-1080. [PMID: 39007884 DOI: 10.1080/07420528.2024.2378025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 06/12/2024] [Accepted: 07/04/2024] [Indexed: 07/16/2024]
Abstract
Insomnia, the most prevalent sleep disorder, is commonly associated with other mental and somatic disorders, making it a significant health concern. It is characterized by nighttime symptoms and daytime dysfunction, with sleepiness being a potential criterion for the latter. Sleepiness is a normal physiological state that is typically experienced near usual bedtime, in normal circumstances. In insomnia, it seems somewhat logical the idea that there is significant daytime sleepiness. However, the topic has been the subject of various discussions in sleep medicine, with studies yielding contradictory and inconsistent results. In this article, we aim to critically examine daytime sleepiness in individuals with insomnia disorder and propose an alternative approach to addressing it, both in clinical practice and research settings. It is crucial to further investigate the role of daytime sleepiness in insomnia, particularly by focusing on sleepiness perception as a more relevant dimension to explore in majority of patients. It is plausible that certain insomnia phenotypes are objectively sleepy during the day, but more studies are necessary, particularly with well-defined clinical samples. The implications of assessing sleepiness perception in insomnia for clinical practice are discussed, and new avenues for research are suggested.
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Affiliation(s)
- Daniel Ruivo Marques
- Department of Education and Psychology, Campus Universitário de Santiago, University of Aveiro, Aveiro, Portugal
- CINEICC - Center for Research in Neuropsychology and Cognitive Behavioral Intervention, Faculty of Psychology and Educational Sciences, University of Coimbra, Coimbra, Portugal
| | - Ana Allen Gomes
- CINEICC - Center for Research in Neuropsychology and Cognitive Behavioral Intervention, Faculty of Psychology and Educational Sciences, University of Coimbra, Coimbra, Portugal
- Faculty of Psychology and Educational Sciences, University of Coimbra, Coimbra, Portugal
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Di Marco T, Djonlagic I, Dauvilliers Y, Sadeghi K, Little D, Datta AN, Hubbard J, Hajak G, Krystal A, Olivieri A, Parrino L, Puryear CB, Zammit G, Donoghue J, Scammell TE. Effect of daridorexant on sleep architecture in patients with chronic insomnia disorder - A pooled post hoc analysis of two randomized Phase 3 clinical studies. Sleep 2024:zsae098. [PMID: 38644625 DOI: 10.1093/sleep/zsae098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Indexed: 04/23/2024] Open
Abstract
STUDY OBJECTIVES Post-hoc analysis to evaluate the effect of daridorexant on sleep architecture in people with insomnia, focusing on features associated with hyperarousal. METHODS We studied sleep architecture in adults with chronic insomnia disorder from two randomized Phase 3 clinical studies (Clinicaltrials.gov: NCT03545191 and NCT03575104) investigating 3 months of daridorexant treatment (placebo, daridorexant 25 mg, daridorexant 50 mg). We analyzed sleep-wake transition probabilities, EEG spectra and sleep spindle properties including density, dispersion, and slow oscillation phase coupling. The Wake EEG Similarity Index (WESI) was determined using a machine learning algorithm analyzing the spectral profile of the EEG. RESULTS At Month 3, daridorexant 50 mg decreased Wake-to-Wake transition probabilities (P<0.05) and increased the probability of transitions from Wake-to-N1 (P<0.05), N2 (P<0.05), and REM sleep (P<0.05), as well as from N1-to-N2 (P<0.05) compared to baseline and placebo. Daridorexant 50 mg decreased relative beta power during Wake (P=0.011) and N1 (P<0.001) compared to baseline and placebo. During Wake, relative alpha power decreased (P<0.001) and relative delta power increased (P<0.001) compared to placebo. Daridorexant did not alter EEG spectra bands in N2, N3, and REM stages or in sleep spindle activity. Daridorexant decreased the WESI score during Wake compared to baseline (P=0.004). Effects with 50 mg were consistent between Month 1 and Month 3 and less pronounced with 25 mg. CONCLUSION Daridorexant reduced EEG features associated with hyperarousal as indicated by reduced Wake-to-Wake transition probabilities and enhanced spectral features associated with drowsiness and sleep during Wake and N1.
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Affiliation(s)
- Tobias Di Marco
- Idorsia Pharmaceuticals Ltd, Allschwil, Switzerland
- Department of Clinical Research, University of Basel, Schanzenstrasse 55, 4031 Basel
| | - Ina Djonlagic
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Yves Dauvilliers
- Centre National de Référence Narcolepsie, Unité du Sommeil, CHU Montpellier, Hôpital Gui-de-Chauliac, Université de Montpellier, INSERM INM, Montpellier, France
| | | | - David Little
- Beacon Biosignals, Inc., Boston, MA, United States
| | | | | | - Göran Hajak
- Social Foundation Bamberg, Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, Bamberg, Germany
| | | | | | - Liborio Parrino
- University of Parma, Department of Medicine and Surgery, Parma, Italy
| | | | - Gary Zammit
- Clinilabs Drug Development Corporation, New York, USA
| | | | - Thomas E Scammell
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, United States
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Altena E, Ellis J, Camart N, Guichard K, Bastien C. Mechanisms of cognitive behavioural therapy for insomnia. J Sleep Res 2023; 32:e13860. [PMID: 36866434 DOI: 10.1111/jsr.13860] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/03/2023] [Accepted: 02/03/2023] [Indexed: 03/04/2023]
Abstract
Although much is known now about behavioural, cognitive and physiological consequences of insomnia, little is known about changes after cognitive behavioural therapy for insomnia on these particular factors. We here report baseline findings on each of these factors in insomnia, after which we address findings on their changes after cognitive behavioural therapy. Sleep restriction remains the strongest determinant of insomnia treatment success. Cognitive interventions addressing dysfunctional beliefs and attitudes about sleep, sleep-related selective attention, worry and rumination further drive effectiveness of cognitive behavioural therapy for insomnia. Future studies should focus on physiological changes after cognitive behavioural therapy for insomnia, such as changes in hyperarousal and brain activity, as literature on these changes is sparse. We introduce a detailed clinical research agenda on how to address this topic.
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Affiliation(s)
| | - Jason Ellis
- Northumbria Centre for Sleep Research, Northumbria University, Newcastle, UK
| | - Nathalie Camart
- UR CLIPSYD, UFR SPSE, Département de psychologie, Université Paris Nanterre, Nanterre, France
- Cabinet Pôle Psy République, Bordeaux, France
- Nouvelle Clinique Bel Air- PEAS, Bordeaux, France
| | - Kelly Guichard
- Nouvelle Clinique Bel Air- PEAS, Bordeaux, France
- CHU Bordeaux, Centre Hypersomnies Rares, Bordeaux, France
| | - Célyne Bastien
- Ecole de Psychologie, Université Laval, Québec, Québec, Canada
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Zhu J, Peng K, Zhang Y, Bai X, Zhong C, Ye J, Lu M. Sleep quality, circadian preferences, and mood among patients with acne vulgaris: a case-control study. Sleep Breath 2023; 27:1997-2003. [PMID: 36650359 DOI: 10.1007/s11325-023-02777-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 12/21/2022] [Accepted: 01/10/2023] [Indexed: 01/19/2023]
Abstract
PURPOSE Poor sleep and mood may be predisposing factors for acne. We aimed to investigate the associations between acne and sleep quality, circadian preferences, and mood. METHODS This case-control study recruited patients with acne and age- and sex-matched healthy controls. We used the Investigator's Global Assessment to evaluate acne severity and various validated questionnaires to measure sleep quality, daytime sleepiness, sleep apnea, circadian preference, and mood symptoms. RESULTS A total of 81 patients with acne (age: 21.6 ± 5.0 years, 52% female) and 76 controls were recruited. Compared to controls, patients had a higher score on the Pittsburgh Sleep Quality Index (5.2 ± 2.6 vs. 4.1 ± 2.3, p = 0.008) and State-Trait Anxiety Inventory (State: 44.6 ± 9.7 vs. 40.6 ± 6.6, p = 0.003; Trait: 47.9 ± 8.2 vs. 45.3 ± 6.2, p = 0.03), and a lower score on a reduced version of the Morningness and Eveningness Questionnaire (13.9 ± 2.6 vs. 14.7 ± 2.3, p = 0.05) and Epworth Sleepiness Scale (7.4 ± 3.4 vs. 8.6 ± 3.6, p = 0.04). Acne severity was associated with sleep quality (β = 0.33), eveningness (β = 0.34), depression (β = 0.66), and anxiety (State: β = 1.73; Trait: β = 1.21), even when adjusted for education level and family history of acne. CONCLUSION Acne is highly associated with poor sleep and mood. Dermatologists are advised to attend closely to the psychological impact of acne. Improvements in sleep and mood may benefit the treatment of acne.
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Affiliation(s)
- Jiangting Zhu
- Department of Dermatology, the First Affiliated Hospital of Chengdu Medical College, Xindu District, No.278, Middle Baoguang Avenue, Chengdu, Sichuan Province, China
| | - Ke Peng
- Department of Dermatology, the First Affiliated Hospital of Chengdu Medical College, Xindu District, No.278, Middle Baoguang Avenue, Chengdu, Sichuan Province, China
| | - Yunjie Zhang
- Department of Dermatology, the First Affiliated Hospital of Chengdu Medical College, Xindu District, No.278, Middle Baoguang Avenue, Chengdu, Sichuan Province, China
| | - Xiaohong Bai
- Department of Dermatology, the First Affiliated Hospital of Chengdu Medical College, Xindu District, No.278, Middle Baoguang Avenue, Chengdu, Sichuan Province, China
| | - Chuanhui Zhong
- Department of Dermatology, the First Affiliated Hospital of Chengdu Medical College, Xindu District, No.278, Middle Baoguang Avenue, Chengdu, Sichuan Province, China
| | - Junru Ye
- Department of Dermatology, the First Affiliated Hospital of Chengdu Medical College, Xindu District, No.278, Middle Baoguang Avenue, Chengdu, Sichuan Province, China
| | - Mao Lu
- Department of Dermatology, the First Affiliated Hospital of Chengdu Medical College, Xindu District, No.278, Middle Baoguang Avenue, Chengdu, Sichuan Province, China.
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Ghermezian A, Nami M, Shalbaf R, Khosrowabadi R, Nasehi M, Kamali AM. Sleep Micro-Macro-structures in Psychophysiological Insomnia. PSG Study. SLEEP AND VIGILANCE 2023; 7:1-9. [PMID: 37361911 PMCID: PMC10106013 DOI: 10.1007/s41782-023-00228-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 02/24/2023] [Accepted: 04/03/2023] [Indexed: 06/28/2023]
Abstract
Study Objectives To address sleep micro-macro-structures in psychophysiological insomnia (PPI) as denoted by cyclic alternating pattern (CAP), Sleep spindles, and hyperarousal as microstructures and sleep characteristics such as sleep stages' variables, and heart rate as macrostructures. Methods Two statistical populations, with 20 participants in each, are addressed: good sleepers (GS) and patients with psychophysiological insomnia (PPI). The sleep polysomnography (PSG) for one night was performed and sleep macro-micro-structures extraction was implemented for each participant. Cyclic alternating patterns were scored manually and other structures were monitored by the original PSG's device software. Analytical methods are used to dissect the results. Result The findings imply: (a) psychophysiological insomnia is characterized by CAP differences from good sleepers which are associated with hyperarousal; (b) Regarding microstructure, more microarousals in sleep stages caused more number of wake index. (c) The ratio of sleep stages, sleep latency and heart rate as sleep macrostructure are significantly changed. (d) There is no significant difference between PPI and GS groups on spindles length in our research. Conclusion Regarding all sleep disorders and especially PPI, CAP variables, EEG arousals, and sleep spindles as microstructures and Total Sleep Time, Sleep Latency, number of waking, REM duration, and Heart Rate as macrostructures were found to be critical for the diagnosis of psychophysiological insomnia The analysis contributes to understanding better approaches in the quantitative specification of psychophysiological insomnia compare to good sleepers.
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Affiliation(s)
- Ali Ghermezian
- Shahid Beheshti University, Shahid Shahriari Square, Evin, Tehran, Iran
- Department of Cognitive Neuroscience, Institute for Cognitive Science Studies, Tehran, Iran
- Dana Brain Health Institute, Shiraz, Iran
| | - Mohammad Nami
- Brain, Cognition, and Behavior Unit at Dana Brain Health Institute, Shiraz, Iran
- Harvard Alumni for Mental Health dataset, Middle-East Ambassador, Dubai, UAE
- Iranian Academy of Neuroscience, Fars Chapter, Shiraz, Iran
- Society for Brain Mapping and Therapeutics, Brain Mapping Foundation, Los Angeles, CA USA
| | - Reza Shalbaf
- Department of Cognitive Neuroscience, Institute for Cognitive Science Studies, Tehran, Iran
| | - Reza Khosrowabadi
- Shahid Beheshti University, Shahid Shahriari Square, Evin, Tehran, Iran
| | - Mohammad Nasehi
- Department of Cognitive Neuroscience, Institute for Cognitive Science Studies, Tehran, Iran
- Cognitive and Neuroscience research center(cnrc), Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Ali-Mohammad Kamali
- Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
- Dana Brain Health Institute, Shiraz, Iran
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Jiang F, Li H, Chen Y, Lu H, Ni J, Chen G. Daridorexant for the treatment of insomnia disorder: A systematic review and meta-analysis of randomized controlled trials. Medicine (Baltimore) 2023; 102:e32754. [PMID: 36800596 PMCID: PMC9936001 DOI: 10.1097/md.0000000000032754] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
BACKGROUND Daridorexant is a novel dual orexin receptor antagonist that has shown efficacy as a treatment for insomnia in multiple randomized clinical trials. However, the efficacy and safety of daridorexant for treatment of insomnia disorder has not been characterized comprehensively in the literature. Therefore, we performed a meta-analysis of available studies. We performed a meta-analysis to systematically evaluate the efficacy and safety of daridorexant for treatment of insomnia disorder. METHODS MEDLINE, Embase, Cochrane Library, and Clinicaltrials.gov for randomized controlled trials were systematically searched up to February 2022. Relative risk and standard mean difference were used to evaluate clinical outcomes. RESULTS We pooled 2271 patients from 4 randomized clinical trials, and evaluated efficacy endpoints. We found that 50 mg of daridorexant was superior to placebo for 4 efficacy outcomes including wake time after sleep onset, latency to persistent sleep, subjective total sleep time, and Insomnia Daytime Symptoms and Impacts Questionnaire domain score (P < .05). In addition, there were no significant differences (P > .05) in adverse events between daridorexant and placebo. CONCLUSIONS Different dosages of daridorexant were tested for treatment of insomnia; however, 5 and 10 mg are not available because of issues of suboptimal effectiveness. Daridorexant showed better efficacy and safety for treatment of insomnia disorder at doses of 25 and 50 mg.
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Affiliation(s)
- Feiyu Jiang
- Brain and Nerve Research Laboratory, Institute of Stroke Research, Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Hang Li
- Brain and Nerve Research Laboratory, Institute of Stroke Research, Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yanting Chen
- Brain and Nerve Research Laboratory, Institute of Stroke Research, Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Haifeng Lu
- Brain and Nerve Research Laboratory, Institute of Stroke Research, Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jianqiang Ni
- Brain and Nerve Research Laboratory, Institute of Stroke Research, Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
- * Correspondence: Jianqiang Ni, Brain and Nerve Research Laboratory, Institute of Stroke Research, Department of Neurology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou 215006, China (e-mail: )
| | - Gang Chen
- Brain and Nerve Research Laboratory, Institute of Stroke Research, Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, China
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Moore PT. Infra-low frequency neurofeedback and insomnia as a model of CNS dysregulation. Front Hum Neurosci 2022; 16:959491. [PMID: 36211128 PMCID: PMC9534730 DOI: 10.3389/fnhum.2022.959491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/12/2022] [Indexed: 11/13/2022] Open
Abstract
This paper will review what is conventionally known of sleep homeostasis and focus on insomnia as a primary manifestation of brain dysregulation, whether as a solitary symptom or as part of a larger syndrome such as post-traumatic stress disorder, PTSD. It will discuss in brief behavioral/mindfulness treatments that have been used to treat neurologic diseases, as this is germane to the phenomenology of neurofeedback (NF). It will explore how neurofeedback may work at the subconscious level and cover the current clinical experience of the effectiveness of this technique in the treatment of insomnia. It will conclude with a case presentation.
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Whittle RS, Keller N, Hall EA, Vellore HS, Stapleton LM, Findlay KH, Dunbar BJ, Diaz‐Artiles A. Gravitational Dose‐Response Curves for Acute Cardiovascular Hemodynamics and Autonomic Responses in a Tilt Paradigm. J Am Heart Assoc 2022; 11:e024175. [PMID: 35861832 PMCID: PMC9707822 DOI: 10.1161/jaha.121.024175] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background
The cardiovascular system is strongly dependent on the gravitational environment. Gravitational changes cause mechanical fluid shifts and, in turn, autonomic effectors influence systemic circulation and cardiac control. We implemented a tilt paradigm to (1) investigate the acute hemodynamic response across a range of directions of the gravitational vector, and (2) to generate specific dose‐response relationships of this gravitational dependency.
Methods and Results
Twelve male subjects were tilted from 45° head‐up tilt to 45° head‐down tilt in 15° increments, in both supine and prone postures. We measured the steady‐state hemodynamic response in a range of variables including heart rate, stroke volume, cardiac output, oxygen consumption, total peripheral resistance, blood pressure, and autonomic indices derived from heart rate variability analysis. There is a strong gravitational dependence in almost all variables considered, with the exception of oxygen consumption, whereas systolic blood pressure remained controlled to within ≈3% across the tilt range. Hemodynamic responses are primarily driven by differential loading on the baroreflex receptors, combined with differences in venous return to the heart. Thorax compression in the prone position leads to reduced venous return and increased sympathetic nervous activity, raising heart rate, and systemic vascular resistance while lowering cardiac output and stroke volume.
Conclusions
Gravitational dose‐response curves generated from these data provide a comprehensive baseline from which to assess the efficacy of potential spaceflight countermeasures. Results also assist clinical management of terrestrial surgery in prone posture or head‐down tilt positions.
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Affiliation(s)
- Richard S. Whittle
- Department of Aerospace Engineering Texas A&M University College Station TX
| | - Nathan Keller
- Department of Health and Kinesiology Texas A&M University College Station TX
| | - Eric A. Hall
- Department of Biomedical Engineering Texas A&M University College Station TX
| | | | | | | | - Bonnie J. Dunbar
- Department of Aerospace Engineering Texas A&M University College Station TX
| | - Ana Diaz‐Artiles
- Department of Aerospace Engineering Texas A&M University College Station TX
- Department of Health and Kinesiology Texas A&M University College Station TX
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Ribeiro A, Gabriel R, Garcia B, Cuccio C, Aqeel W, Moreno A, Landeen C, Hurley A, Kavey N, Pfaff D. Temporal relations between peripheral and central arousals in good and poor sleepers. Proc Natl Acad Sci U S A 2022; 119:e2201143119. [PMID: 35696573 PMCID: PMC9231500 DOI: 10.1073/pnas.2201143119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 05/12/2022] [Indexed: 12/15/2022] Open
Abstract
Good sleepers and patients with insomnia symptoms (poor sleepers) were tracked with two measures of arousal; conventional polysomnography (PSG) for electroencephalogram (EEG) assessed cortical arousals, and a peripheral arterial tonometry device was used for the detection of peripheral nervous system (PNS) arousals associated with vasoconstrictions. The relationship between central (cortical) and peripheral (autonomic) arousals was examined by evaluating their close temporal dynamics. Cortical arousals almost invariably were preceded and followed by peripheral activations, while large peripheral autonomic arousals were followed by cortical arousals only half of the time. The temporal contiguity of these two types of arousals was altered in poor sleepers, and poor sleepers displayed a higher number of cortical and peripheral arousals compared with good sleepers. Given the difference in the number of peripheral autonomic arousals between good and poor sleepers, an evaluation of such arousals could become a means of physiologically distinguishing poor sleepers.
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Affiliation(s)
- Ana Ribeiro
- Laboratory of Neurobiology and Behavior, The Rockefeller University, New York, NY 10065
- Division of Natural Sciences, College of Mount Saint Vincent, New York, NY 10471
| | - Rachel Gabriel
- Division of Natural Sciences, College of Mount Saint Vincent, New York, NY 10471
| | - Bernardo Garcia
- Division of Natural Sciences, College of Mount Saint Vincent, New York, NY 10471
| | - Casey Cuccio
- Division of Natural Sciences, College of Mount Saint Vincent, New York, NY 10471
| | - William Aqeel
- Division of Natural Sciences, College of Mount Saint Vincent, New York, NY 10471
| | - Alejandro Moreno
- Division of Natural Sciences, College of Mount Saint Vincent, New York, NY 10471
| | - Colby Landeen
- Division of Natural Sciences, College of Mount Saint Vincent, New York, NY 10471
| | - Arlene Hurley
- Laboratory of Neurobiology and Behavior, The Rockefeller University, New York, NY 10065
| | - Neil Kavey
- Laboratory of Neurobiology and Behavior, The Rockefeller University, New York, NY 10065
- Department of Psychiatry, Columbia University, New York, NY 10032
| | - Donald Pfaff
- Laboratory of Neurobiology and Behavior, The Rockefeller University, New York, NY 10065
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Lechat B, Hirotsu C, Appleton S, Younes M, Adams RJ, Vakulin A, Hansen K, Zajamsek B, Wittert G, Catcheside P, Heinzer R, Eckert DJ. A novel EEG marker predicts perceived sleepiness and poor sleep quality. Sleep 2022; 45:zsac051. [PMID: 35554584 DOI: 10.1093/sleep/zsac051] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 02/16/2022] [Indexed: 09/21/2023] Open
Abstract
STUDY OBJECTIVES To determine if a novel EEG-derived continuous index of sleep depth/alertness, the odds ratio product (ORP), predicts self-reported daytime sleepiness and poor sleep quality in two large population-based cohorts. METHODS ORP values which range from 0 (deep sleep) to 2.5 (fully alert) were calculated in 3s intervals during awake periods (ORPwake) and NREM sleep (ORPNREM) determined from home sleep studies in the HypnoLaus (N = 2162: 1106 females, 1056 males) and men androgen inflammation lifestyle environment and stress (MAILES) cohorts (N = 754 males). Logistic regression was used to examine associations between ORPwake, ORPNREM, and traditional polysomnography measures (as comparators) with excessive sleepiness (Epworth sleepiness scale >10) and poor sleep quality (Pittsburgh sleep quality index >5) and insomnia symptoms. RESULTS High ORPwake was associated with a ~30% increase in poor sleep quality in both HypnoLaus (odds ratio, OR, and 95% CI) 1.28 (1.09, 1.51), and MAILES 1.36 (1.10, 1.68). High ORPwake was also associated with a ~28% decrease in excessive daytime sleepiness in the MAILES dataset. ORPNREM was associated with a ~30% increase in poor sleep quality in HypnoLaus but not in MAILES. No consistent associations across cohorts were detected using traditional polysomnography markers. CONCLUSIONS ORP, a novel EEG-derived metric, measured during wake periods predicts poor sleep quality in two independent cohorts. Consistent with insomnia symptomatology of poor perceived sleep in the absence of excessive daytime sleepiness, ORPwake may provide valuable objective mechanistic insight into physiological hyperarousal.
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Affiliation(s)
- Bastien Lechat
- College of Science and Engineering, Flinders University, Adelaide, SA, Australia
- Flinders Health and Medical Research Institute Sleep Health/Adelaide Institute for Sleep Health, Flinders University, College of Medicine and Public Health Adelaide, SA, Australia
| | - Camila Hirotsu
- Center for Investigation and Research in Sleep, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Sarah Appleton
- Flinders Health and Medical Research Institute Sleep Health/Adelaide Institute for Sleep Health, Flinders University, College of Medicine and Public Health Adelaide, SA, Australia
| | - Magdy Younes
- Department of Medicine, University of Manitoba, Winnipeg, MN, Canada
| | - Robert J Adams
- Flinders Health and Medical Research Institute Sleep Health/Adelaide Institute for Sleep Health, Flinders University, College of Medicine and Public Health Adelaide, SA, Australia
| | - Andrew Vakulin
- Flinders Health and Medical Research Institute Sleep Health/Adelaide Institute for Sleep Health, Flinders University, College of Medicine and Public Health Adelaide, SA, Australia
| | - Kristy Hansen
- College of Science and Engineering, Flinders University, Adelaide, SA, Australia
- Flinders Health and Medical Research Institute Sleep Health/Adelaide Institute for Sleep Health, Flinders University, College of Medicine and Public Health Adelaide, SA, Australia
| | - Branko Zajamsek
- College of Science and Engineering, Flinders University, Adelaide, SA, Australia
- Flinders Health and Medical Research Institute Sleep Health/Adelaide Institute for Sleep Health, Flinders University, College of Medicine and Public Health Adelaide, SA, Australia
| | - Gary Wittert
- Freemasons Centre for Male Health and Wellness, Adelaide University, Adelaide, SA, Australia
| | - Peter Catcheside
- Flinders Health and Medical Research Institute Sleep Health/Adelaide Institute for Sleep Health, Flinders University, College of Medicine and Public Health Adelaide, SA, Australia
| | - Raphael Heinzer
- Center for Investigation and Research in Sleep, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Danny J Eckert
- Flinders Health and Medical Research Institute Sleep Health/Adelaide Institute for Sleep Health, Flinders University, College of Medicine and Public Health Adelaide, SA, Australia
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Van Puyvelde M, Mairesse O. Do C-tactile afferents go to sleep? A potential role for somatosensory stimulation in sleep regulation. Curr Opin Behav Sci 2022. [DOI: 10.1016/j.cobeha.2021.08.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Yun S, Jo S. Understanding insomnia as systemic disease. Yeungnam Univ J Med 2021; 38:267-274. [PMID: 34510866 PMCID: PMC8688785 DOI: 10.12701/yujm.2021.01424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 08/29/2021] [Indexed: 11/25/2022] Open
Abstract
Sleep plays a critical role in homeostasis of the body and mind. Insomnia is a disease that causes disturbances in the initiation and maintenance of sleep. Insomnia is known to affect not only the sleep process itself but also an individual’s cognitive function and emotional regulation during the daytime. It increases the risk of various neuropsychiatric diseases such as depression, anxiety disorder, and dementia. Although it might appear that insomnia only affects the nervous system, it is also a systemic disease that affects several aspects of the body, such as the cardiovascular, endocrine, and immune systems; therefore, it increases the risk of various diseases such as hypertension, diabetes mellitus, and infection. Insomnia has a wide range of effects on our bodies because sleep is a complex and active process. However, a high proportion of patients with insomnia do not seek treatment, which results in high direct and indirect costs. This is attributed to the disregard of many of the negative effects of insomnia. Therefore, we expect that understanding insomnia as a systemic disease will provide an opportunity to understand the condition better and help prevent secondary impairment due to insomnia.
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Affiliation(s)
- Seokho Yun
- Department of Psychiatry, Yeungnam University Hospital, Daegu, Korea
| | - Sohye Jo
- Department of Psychiatry, Yeungnam University Hospital, Daegu, Korea
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