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Yuen LD, Chen Y, Stewart JW, Arden P, Hellerstein DJ. A randomized, controlled trial assessing the acute efficacy of triple chronotherapy in unipolar depression. J Affect Disord 2021; 282:1143-1152. [PMID: 33601689 DOI: 10.1016/j.jad.2020.12.174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 10/21/2020] [Accepted: 12/23/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Triple chronotherapy (wake night [one night without sleep], sleep phase advance, and early morning bright light exposure) demonstrated rapid efficacy primarily in bipolar depression, but has not been as well studied in unipolar depression. Our primary hypothesis is that triple chronotherapy is associated with a significantly greater Week 1 remission rate compared to the alternative protocol. METHODS Unipolar depressed, nonpsychotic adult outpatients were randomized to triple chronotherapy or an alternative protocol (assigned sleep times without wake night, bright light exposure with blue-green wavelengths filtered out). Symptoms were assessed with Structured Interview Guide for Hamilton Depression Rating Scale with Atypical Supplement (SIGH-ADS) at each visit and a modified form (m-SIGH) daily for the first week. Response was defined as a 50% decrease in m-SIGH score, and remission as m-SIGH≤7, modified Clinical Global Impression-Improvement (m-CGI-I)≤2, and no depressed mood on m-SIGH. RESULTS 44 patients (84.1% major depressive disorder, 75.0% persistent depressive disorder; 54.5% female; age mean±SD 38.3 ± 15.2 years) were randomized to triple chronotherapy (N = 22) or an alternative protocol (N = 22). Week 1 remission rate was numerically higher but not statistically significant in the triple chronotherapy versus alternative protocol group (25.0% vs. 6.7%, Chi-square=1.76, df=1, p = 0.294). m-SIGH scores and response and remission rates on Days 2-7 were numerically improved without reaching statistical significance in the triple chronotherapy versus alternative protocol group. LIMITATIONS Predominantly white, educated sample. CONCLUSIONS This small pilot study demonstrated triple chronotherapy's feasibility and tolerability in unipolar depressed outpatients. Larger randomized trials are warranted to further characterize acute and long-term efficacy.
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Affiliation(s)
- Laura D Yuen
- Columbia University Department of Psychiatry, New York, NY, United States
| | - Ying Chen
- Columbia University Department of Psychiatry, New York, NY, United States; New York State Psychiatric Institute, 1051 Riverside Drive, Unit #51, New York, NY, 10032, United States
| | | | - Peter Arden
- Columbia University Department of Psychiatry, New York, NY, United States; New York State Psychiatric Institute, 1051 Riverside Drive, Unit #51, New York, NY, 10032, United States
| | - David J Hellerstein
- Columbia University Department of Psychiatry, New York, NY, United States; New York State Psychiatric Institute, 1051 Riverside Drive, Unit #51, New York, NY, 10032, United States.
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2
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Lau EYY, Lau KNT, Chan CS, Tseng CH, Lam YC, Tse DMS, Cheng WY, Chung KF, Wing YK. Effects of REM sleep during a daytime nap on emotional perception in individuals with and without depression. J Affect Disord 2020; 260:687-694. [PMID: 31550615 DOI: 10.1016/j.jad.2019.09.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 09/03/2019] [Accepted: 09/11/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND It has been theoretically proposed that alteration in sleep physiology may contribute to the development of biased emotional processing featured in depression. The current study investigated the role of sleep and especially REM in modulating perception of emotional faces in depressed versus non-depressed individuals using a napping paradigm. METHODS Forty-six individuals with major depressive disorder and 66 age- and education-matched healthy controls completed an emotional face perception task before and after random assignment to one of the three intention-to-treat (ITT) conditions, namely 30-min-nap, 90-min-nap and wake. To delineate the effects of REM, as-treated (30-min-nap, 90-min-REM-nap, 90-min-noREM-nap and wake) analyses were also conducted. RESULTS Repeated measures multivariate analysis of covariance (MANCOVA) showed a significant Time *Group *Condition interaction on angry faces for both analyses of ITT (p = .017) and AT (p = .027). Pairwise comparison with Bonferroni corrections revealed a significant increase in the intensity rating of angry faces only after 90-min-REM-nap in the depressed group. Correlational analyses convergingly showed that the increase of intensity rating of angry faces was associated with the proportion of REM sleep in the depressed group, p = .035. LIMITATIONS The observed effect of REM sleep during daytime napping may not represent the effect of nighttime REM sleep in depression. CONCLUSIONS We provide the first evidence of the association of daytime sleep, particularly REM sleep, with a more negative perception of angry faces exclusively in individuals with depression. The differentiated impact of sleep observed may contribute to the development of altered emotional processing in depression.
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Affiliation(s)
- Esther Yuet Ying Lau
- Department of Psychology, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, New Territories, Hong Kong; Centre for Psychosocial Health, The Education University of Hong Kong, Hong Kong; Department of Psychiatry, Queen Mary Hospital, The University of Hong Kong, Hong Kong.
| | - Kristy Nga Ting Lau
- Clinical Psychological Services, Hong Kong Children & Youth Services, Hong Kong
| | - Christian S Chan
- Department of Psychology, The University of Hong Kong, Hong Kong
| | - Chia-Huei Tseng
- Research Institute of Electrical Communication, Tohoku University, Sendai, Japan
| | - Yeuk Ching Lam
- Department of Psychology, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, New Territories, Hong Kong; Centre for Psychosocial Health, The Education University of Hong Kong, Hong Kong
| | - Desiree Man-Sik Tse
- Department of Psychology, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, New Territories, Hong Kong; Centre for Psychosocial Health, The Education University of Hong Kong, Hong Kong
| | - Wing Yee Cheng
- Department of Psychology, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, New Territories, Hong Kong; Centre for Psychosocial Health, The Education University of Hong Kong, Hong Kong
| | - Ka-Fai Chung
- Department of Psychiatry, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Yun Kwok Wing
- Sleep Assessment Unit, Department of Psychiatry, The Chinese University of Hong Kong, Hong Kong
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Cunningham JEA, Stamp JA, Shapiro CM. Sleep and major depressive disorder: a review of non-pharmacological chronotherapeutic treatments for unipolar depression. Sleep Med 2019; 61:6-18. [PMID: 31262550 DOI: 10.1016/j.sleep.2019.04.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 03/18/2019] [Accepted: 04/25/2019] [Indexed: 11/25/2022]
Abstract
Depression is a significant public health issue, made worse by the absence of response to antidepressant medications by many patients. Given the high degree of overlap between sleep and circadian complaints and depression, chronotherapies are a promising avenue for novel, effective, and fast-acting treatments for depression. A critical literature review was conducted of bright light therapy (BLT) as a treatment for unipolar depression. Additionally, a separate critical literature review was also conducted of several promising, non-pharmacological, combination chronotherapeutic treatments, including BLT, sleep deprivation/wake therapy, and sleep phase advance. Results of BLT as a treatment for depression are encouraging, especially when used as an adjunct to antidepressant medications. It may also be desirable in special populations, such as geriatric and perinatal patients. Overall, results from combination chronotherapies are encouraging, though none has strong empirical support. Combining chronotherapies is an avenue of treatment which should be further explored.
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Affiliation(s)
| | - Jennifer A Stamp
- Department of Psychology & Neuroscience, Dalhousie University, Canada
| | - Colin M Shapiro
- Departments of Psychiatry and Ophthalmology, University of Toronto, Canada; Youthdale Child and Adolescent Sleep Centre, Canada
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Kragh M, Larsen ER, Martiny K, Møller DN, Wihlborg CS, Lindhardt T, Videbech P. Predictors of response to combined wake and light therapy in treatment-resistant inpatients with depression. Chronobiol Int 2018; 35:1209-1220. [DOI: 10.1080/07420528.2018.1468341] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Mette Kragh
- Department of Affective Disorders, Aarhus University Hospital, Risskov, Denmark
| | - Erik Roj Larsen
- Department of Psychiatry, Psychiatry in the Region of Southern Denmark, Odense C, Denmark
- Institute of Clinical Research, Research Unit of Psychiatry, University of Southern Denmark, Odense C, Denmark
| | - Klaus Martiny
- Mental Health Centre Copenhagen, Department O, University of Copenhagen, Copenhagen, Denmark
| | | | | | - Tove Lindhardt
- Department of Internal Medicine, Copenhagen University Hospital, Herlev, Denmark
| | - Poul Videbech
- Glostrup, Mental Health Centre Glostrup, Copenhagen University Hospital, Glostrup, Denmark
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Abstract
Traditional pharmacological treatments for depression have a delayed therapeutic onset, ranging from several weeks to months, and there is a high percentage of individuals who never respond to treatment. In contrast, ketamine produces rapid-onset antidepressant, anti-suicidal, and anti-anhedonic actions following a single administration to patients with depression. Proposed mechanisms of the antidepressant action of ketamine include N-methyl-D-aspartate receptor (NMDAR) modulation, gamma aminobutyric acid (GABA)-ergic interneuron disinhibition, and direct actions of its hydroxynorketamine (HNK) metabolites. Downstream actions include activation of the mechanistic target of rapamycin (mTOR), deactivation of glycogen synthase kinase-3 and eukaryotic elongation factor 2 (eEF2), enhanced brain-derived neurotrophic factor (BDNF) signaling, and activation of α-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid receptors (AMPARs). These putative mechanisms of ketamine action are not mutually exclusive and may complement each other to induce potentiation of excitatory synapses in affective-regulating brain circuits, which results in amelioration of depression symptoms. We review these proposed mechanisms of ketamine action in the context of how such mechanisms are informing the development of novel putative rapid-acting antidepressant drugs. Such drugs that have undergone pre-clinical, and in some cases clinical, testing include the muscarinic acetylcholine receptor antagonist scopolamine, GluN2B-NMDAR antagonists (i.e., CP-101,606, MK-0657), (2R,6R)-HNK, NMDAR glycine site modulators (i.e., 4-chlorokynurenine, pro-drug of the glycineB NMDAR antagonist 7-chlorokynurenic acid), NMDAR agonists [i.e., GLYX-13 (rapastinel)], metabotropic glutamate receptor 2/3 (mGluR2/3) antagonists, GABAA receptor modulators, and drugs acting on various serotonin receptor subtypes. These ongoing studies suggest that the future acute treatment of depression will typically occur within hours, rather than months, of treatment initiation.
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Affiliation(s)
- Panos Zanos
- Department of Psychiatry, University of Maryland School of Medicine, Rm. 934F MSTF, 685 W. Baltimore St., Baltimore, MD, 21201, USA.
| | - Scott M Thompson
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Physiology, University of Maryland School of Medicine, St. BRB 5-007, 655 W. Baltimore St., Baltimore, MD, 21201, USA, Baltimore, MD, 21201, USA
| | - Ronald S Duman
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Department of Neurobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Carlos A Zarate
- Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Todd D Gould
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Psychiatry, University of Maryland School of Medicine, Rm. 936 MSTF, 685 W. Baltimore St., Baltimore, MD, 21201, USA
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Duncan WC, Ballard ED, Zarate CA. Ketamine-Induced Glutamatergic Mechanisms of Sleep and Wakefulness: Insights for Developing Novel Treatments for Disturbed Sleep and Mood. Handb Exp Pharmacol 2017; 253:337-358. [PMID: 28939975 DOI: 10.1007/164_2017_51] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Ketamine, a drug with rapid antidepressant effects and well-described effects on slow wave sleep (SWS), is a useful intervention for investigating sleep-wake mechanisms involved in novel therapeutics. The drug rapidly (within minutes to hours) reduces depressive symptoms in individuals with major depressive disorder (MDD) or bipolar disorder (BD), including those with treatment-resistant depression. Ketamine treatment elevates extracellular glutamate in the prefrontal cortex. Glutamate, in turn, plays a critical role as a proximal element in a ketamine-initiated molecular cascade that increases synaptic strength and plasticity, which ultimately results in rapidly improved mood. In MDD, rapid antidepressant response to ketamine is related to decreased waking as well as increased total sleep, SWS, slow wave activity (SWA), and rapid eye movement (REM) sleep. Ketamine also increases brain-derived neurotrophic factor (BDNF) levels. In individuals with MDD, clinical response to ketamine is predicted by low baseline delta sleep ratio, a measure of deficient early night production of SWS. Notably, there are important differences between MDD and BD that may be related to the effects of diagnosis or of mood stabilizers. Consistent with its effects on clock-associated molecules, ketamine alters the timing and amplitude of circadian activity patterns in rapid responders versus non-responders with MDD, suggesting that it affects mood-dependent central neural circuits. Molecular interactions between sleep homeostasis and clock genes may mediate the rapid and durable elements of clinical response to ketamine and its active metabolite.
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Affiliation(s)
- Wallace C Duncan
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institute of Health, Bethesda, MD, 20892, USA.
| | - Elizabeth D Ballard
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institute of Health, Bethesda, MD, 20892, USA
| | - Carlos A Zarate
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institute of Health, Bethesda, MD, 20892, USA
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Cai ZJ. A new function of rapid eye movement sleep: improvement of muscular efficiency. Physiol Behav 2015; 144:110-5. [PMID: 25770701 DOI: 10.1016/j.physbeh.2015.03.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 02/28/2015] [Accepted: 03/09/2015] [Indexed: 11/25/2022]
Abstract
Previously I demonstrated that the slow wave sleep (SWS) functioned to adjust the emotional balance disrupted by emotional memories randomly accumulated during waking, while the rapid eye movement (REM) sleep played the opposite role. Many experimental results have unambiguously shown that various emotional memories are processed during REM sleep. In this article, it is attempted to combine this confirmed function of REM sleep with the atonic state unique to REM sleep, and to integrate a new theory suggesting that improvement of muscular efficiency be a new function of REM sleep. This new function of REM sleep is more advantageous than the function of REM sleep in emotional memories and disinhibited drives to account for the phylogenetic variations of REM sleep, especially the absence of REM sleep in dolphins and short duration of REM sleep in birds in contrary to that in humans and rodents, the absence of penile erections in REM sleep in armadillo, as well as the higher voltage in EEG during REM sleep in platypus and ostrich. Besides, this new function of REM sleep is also advantageous to explain the association of REM sleep with the atonic episodes in SWS, the absence of drastic menopausal change in duration of REM sleep, and the effects of ambient temperature on the duration of REM sleep. These comparative and experimental evidences support the improvement of muscular efficiency as a new and major function of REM sleep.
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Affiliation(s)
- Zi-Jian Cai
- No. 129, Building 6, Room 404, North Dongwu Road, Suzhou City, Jiangsu Province 215128, PR China.
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8
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Faraut B, Nakib S, Drogou C, Elbaz M, Sauvet F, De Bandt JP, Léger D. Napping reverses the salivary interleukin-6 and urinary norepinephrine changes induced by sleep restriction. J Clin Endocrinol Metab 2015; 100:E416-26. [PMID: 25668196 DOI: 10.1210/jc.2014-2566] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
CONTEXT Neuroendocrine and immune stresses imposed by chronic sleep restriction are known to be involved in the harmful cardiovascular effects associated with poor sleep. OBJECTIVES Despite a well-known beneficial effect of napping on alertness, its effects on neuroendocrine stress and immune responses after sleep restriction are largely unknown. DESIGN This study was a strictly controlled (sleep-wake status, light environment, caloric intake), crossover, randomized design in continuously polysomnography-monitored subjects. SETTING The study was conducted in a laboratory-based study. PARTICIPANTS The subjects were 11 healthy young men. INTERVENTION We investigated the effects on neuroendocrine and immune biomarkers of a night of sleep restricted to 2 h followed by a day without naps or with 30 minute morning and afternoon naps, both conditions followed by an ad libitum recovery night starting at 20:00. MAIN OUTCOME MEASURES Salivary interleukin-6 and urinary catecholamines were assessed throughout the daytime study periods. RESULTS The increase in norepinephrine values seen at the end of the afternoon after the sleep-restricted night was not present when the subjects had the opportunity to take naps. Interleukin-6 changes observed after sleep deprivation were also normalized after napping. During the recovery day in the no-nap condition, there were increased levels of afternoon epinephrine and dopamine, which was not the case in the nap condition. A recovery night after napping was associated with a reduced amount of slow-wave sleep compared to after the no-nap condition. CONCLUSIONS Our data suggest that napping has stress-releasing and immune effects. Napping could be easily applied in real settings as a countermeasure to the detrimental health consequences of sleep debt.
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Affiliation(s)
- Brice Faraut
- Université Paris Descartes-Sorbonne Paris Cité, APHP, Hôtel Dieu de Paris, Centre du Sommeil et de la Vigilance (B.F., C.D., M.E., F.S., D.L.), EA 7330 VIFASOM, Paris, France; Université Paris Descartes-Sorbonne Paris Cité, APHP, Hôtel Dieu de Paris, Laboratoire de Chimie Clinique et Laboratoire de Biologie de la Nutrition (S.N., J-P.D.), EA 4466, Centre de Recherche Pharmaceutique de Paris, France; IRBA (Institut de Recherche Biomédicale des Armées) (C.D., F.S.), Unité Fatique Vigilance, Paris, France
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von Bonin D, Grote V, Buri C, Cysarz D, Heusser P, Moser M, Wolf U, Laederach K. Adaption of cardio-respiratory balance during day-rest compared to deep sleep--an indicator for quality of life? Psychiatry Res 2014; 219:638-44. [PMID: 25011731 DOI: 10.1016/j.psychres.2014.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 05/28/2014] [Accepted: 06/01/2014] [Indexed: 11/26/2022]
Abstract
Heart rate and breathing rate fluctuations represent interacting physiological oscillations. These interactions are commonly studied using respiratory sinus arrhythmia (RSA) of heart rate variability (HRV) or analyzing cardiorespiratory synchronization. Earlier work has focused on a third type of relationship, the temporal ratio of respiration rate and heart rate (HRR). Each method seems to reveal a specific aspect of cardiorespiratory interaction and may be suitable for assessing states of arousal and relaxation of the organism. We used HRR in a study with 87 healthy subjects to determine the ability to relax during 5 day-resting periods in comparison to deep sleep relaxation. The degree to which a person during waking state could relax was compared to somatic complaints, health-related quality of life, anxiety and depression. Our results show, that HRR is barely connected to balance (LF/HF) in HRV, but significantly correlates to the perception of general health and mental well-being as well as to depression. If relaxation, as expressed in HRR, during day-resting is near to deep sleep relaxation, the subjects felt healthier, indicated better mental well-being and less depressive moods.
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Affiliation(s)
- Dietrich von Bonin
- Institute of Complementary Medicine, University of Berne, Inselspital, Imhoof-Pavillon, 3010 Berne, Switzerland
| | - Vincent Grote
- Institute of Physiology, Medical University of Graz, Austria and Human Research, Institute for Health Technology and Prevention Research, Weiz, Austria
| | - Caroline Buri
- Department of Endocrinology, Diabetology and Clinical Nutrition, Autonomic Lab, University Hospital Inselspital, University of Berne, Murtenstrasse 21, CH-3010 Bern, Switzerland
| | - Dirk Cysarz
- Chair for Theory of Medicine, Integrative and Anthroposophic Medicine, Faculty of Health, University of Witten/Herdecke, Germany
| | - Peter Heusser
- Chair for Theory of Medicine, Integrative and Anthroposophic Medicine, Faculty of Health, University of Witten/Herdecke, Germany
| | - Max Moser
- Institute of Physiology, Medical University of Graz, Austria and Human Research, Institute for Health Technology and Prevention Research, Weiz, Austria
| | - Ursula Wolf
- Institute of Complementary Medicine, University of Berne, Inselspital, Imhoof-Pavillon, 3010 Berne, Switzerland
| | - Kurt Laederach
- Department of Endocrinology, Diabetology and Clinical Nutrition, Autonomic Lab, University Hospital Inselspital, University of Berne, Murtenstrasse 21, CH-3010 Bern, Switzerland.
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10
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Lazowski LK, Townsend B, Hawken ER, Jokic R, du Toit R, Milev R. Sleep architecture and cognitive changes in olanzapine-treated patients with depression: a double blind randomized placebo controlled trial. BMC Psychiatry 2014; 14:202. [PMID: 25030264 PMCID: PMC4223523 DOI: 10.1186/1471-244x-14-202] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 07/10/2014] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Disturbance in sleep quality is a symptom of Major Depressive Disorder (MDD) and Bipolar Disorder (BD) and thus improving quality of sleep is an important aspect of successful treatment. Here, a prospective, double-blind, randomized, placebo-controlled study examined the effect of olanzapine (an atypical antipsychotic) augmentation therapy on sleep architecture, specifically slow wave sleep (SWS), in the treatment of depression. The effect of olanzapine augmentation therapy on other features of sleep (e.g., sleep continuity) and depression (e.g., illness severity and cognitive function) were also determined. METHODS Patients currently experiencing a major depressive episode and who were on a stable medication were included. Sleep architecture was measured by overnight ambulatory polysomnography. Illness severity was determined using the Montgomery-Asberg Depression Rating Scale (MADRS). Cognitive function was examined using Cambridge Neuropsychological Test Automated Battery (CANTAB): Spatial Working Memory (SWM), Spatial Span (SSP), and Reaction Time (RTI) tasks. Polysomnographs, clinical measures and cognitive tests were administered at baseline, after 2-4 days of treatment and after 28-31 days of treatment. Twenty-five patients participated in the study (N = 10, N = 15 for placebo and olanzapine treated groups respectively). RESULTS The primary objective of the study was to assess the objective (polysomnographic) changes in sleep quality, defined as changes in SWS, following olanzapine treatment for depression. Latency to but not duration of SWS was found to significantly differ between olanzapine- and placebo-treated participants (Hedge's g: 0.97, 0.13 respectively). A significant improvement in olanzapine-treated participants over placebo-treated participants was observed in secondary outcome measures, including sleep efficiency, total sleep time, and sleep latency. Secondary objectives assessed the subjective changes in sleep quality parameters and correlated them with measures of illness severity and changes in cognition. MADRS scores were significantly improved in olanzapine-treated participants over time but not more than placebo treatment. There was no significant difference between olanzapine- and placebo-treated participants in SWM, SSP or RTI tasks. CONCLUSIONS Olanzapine augmentation treatment generally did not improve SWS but did improve sleep continuity and depression. Olanzapine may be one of few medications that improve sleep continuity, thus directly targeting symptoms of depression. TRIAL REGISTRATION ClinicalTrials.gov, NCT00520507.
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Affiliation(s)
- Lauren K Lazowski
- Centre for Neuroscience Studies, Queen’s University, Kingston, Canada
| | - Ben Townsend
- Department of Psychology, Carleton University, Ottawa, Canada
| | - Emily R Hawken
- Centre for Neuroscience Studies, Queen’s University, Kingston, Canada,Department of Psychiatry, Queen’s University, 752 King Street West, Kingston, ON K7L 4X3, Canada
| | - Ruzica Jokic
- Department of Psychiatry, Queen’s University, 752 King Street West, Kingston, ON K7L 4X3, Canada
| | - Regina du Toit
- Department of Psychiatry, Queen’s University, 752 King Street West, Kingston, ON K7L 4X3, Canada
| | - Roumen Milev
- Department of Psychiatry, Queen's University, 752 King Street West, Kingston, ON K7L 4X3, Canada.
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11
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Neuroscience-driven discovery and development of sleep therapeutics. Pharmacol Ther 2014; 141:300-34. [DOI: 10.1016/j.pharmthera.2013.10.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Accepted: 10/25/2013] [Indexed: 01/18/2023]
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12
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Korf J. Delayed mood transitions in major depressive disorder. Med Hypotheses 2014; 82:581-8. [PMID: 24613736 DOI: 10.1016/j.mehy.2014.02.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 01/24/2014] [Accepted: 02/16/2014] [Indexed: 01/10/2023]
Abstract
The hypothesis defended here is that the process of mood-normalizing transitions fails in a significant proportion of patients suffering from major depressive disorder. Such a failure is largely unrelated to the psychological content. Evidence for the hypothesis is provided by the highly variable and unpredictable time-courses of the depressive episodes. The main supporting observations are: (1) mood transitions within minutes or days have been reported during deep brain stimulation, naps after sleep deprivation and bipolar mood disorders; (2) sleep deprivation, electroconvulsive treatment and experimental drugs (e.g., ketamine) may facilitate mood transitions in major depressive disorder within hours or a few days; (3) epidemiological and clinical studies show that the time-to-recovery from major depressive disorder can be described with decay models implying very short depressive episodes; (4) lack of relationship between the length of depression and recovery episodes in recurrent depression; (5) mood fluctuations predict later therapeutic success in major depressive disorder. We discuss some recent models aimed to describe random mood transitions. The observations together suggest that the mood transitions have a wide variety of apparently unrelated causes. We suggest that the mechanism of mood transition is compromised in major depressive disorder, which has to be recognized in diagnostic systems.
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Affiliation(s)
- Jakob Korf
- University of Groningen, Centre of Psychiatry, Groningen, The Netherlands.
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13
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Hemmeter UM, Hemmeter-Spernal J, Krieg JC. Sleep deprivation in depression. Expert Rev Neurother 2014; 10:1101-15. [DOI: 10.1586/ern.10.83] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Dallaspezia S, Benedetti F. Chronobiological therapy for mood disorders. Expert Rev Neurother 2014; 11:961-70. [DOI: 10.1586/ern.11.61] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Bunney BG, Bunney WE. Mechanisms of rapid antidepressant effects of sleep deprivation therapy: clock genes and circadian rhythms. Biol Psychiatry 2013; 73:1164-71. [PMID: 22906517 DOI: 10.1016/j.biopsych.2012.07.020] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 07/18/2012] [Accepted: 07/18/2012] [Indexed: 11/16/2022]
Abstract
A significant subset of both major depressive disorder and bipolar disorder patients rapidly (within 24 hours) and robustly improves with the chronotherapeutic intervention of sleep deprivation therapy (SDT). Major mood disorder patients are reported to have abnormal circadian rhythms including temperature, hormonal secretion, mood, and particularly sleep. These rhythms are modulated by the clock gene machinery and its products. It is hypothesized that SDT resets abnormal clock gene machinery, that relapse of depressive symptoms during recovery night sleep reactivates abnormal clock gene machinery, and that supplemental chronotherapies and medications can block relapse and help stabilize circadian-related improvement. The central circadian clock genes, BMAL1/CLOCK (NPAS2), bind to Enhancer Boxes to initiate the transcription of circadian genes, including the period genes (per1, per2, per3). It is suggested that a defect in BMAL1/CLOCK (NPAS2) or in the Enhancer Box binding contributes to altered circadian function associated, in part, with the period genes. The fact that chronotherapies, including SDT and sleep phase advance, are dramatically effective suggests that altered clock gene machinery may represent a core pathophysiological defect in a subset of mood disorder patients.
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Affiliation(s)
- Blynn G Bunney
- Department of Psychiatry, School of Medicine, University of California, Irvine, California, USA
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Peth J, Regen F, Bajbouj M, Heuser I, Anghelescu I, Hornung OP. The influence of daytime napping versus controlled activity on the subjective well-being of patients with major depression. Psychiatry Res 2012; 200:368-73. [PMID: 22789840 DOI: 10.1016/j.psychres.2012.06.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 06/13/2012] [Accepted: 06/15/2012] [Indexed: 11/25/2022]
Abstract
While the impact of sleep on cognitive functions such as memory is under extensive study, the role of sleep in modulating a persons' subjective well-being remains largely uncharacterized, especially in groups with psychiatric disorders. To gather more information on this topic a study was conducted with 20 patients suffering from Major Depression (MD) and 20 healthy controls, matched for age, gender and education. All subjects rated their subjective well-being at 10a.m. in the morning. Half of the subjects in each experimental group were given the opportunity to nap in the afternoon between 2p.m. and 3.30p.m., while the other half stayed awake accompanied by controlled activity. All subjects rated their subjective well-being again at 4p.m. Only the group of patients with MD who were given the opportunity to sleep during the day showed a significant improvement in subjective well-being from morning to afternoon. All the other subgroups showed no significant changes across the time interval. The results of this study suggest that depressive patients benefit from daytime naps with regard to their subjective well-being. Further research is needed to determine the exact mechanisms of this improvement.
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Affiliation(s)
- Judith Peth
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20251 Hamburg, Germany.
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Benedetti F, Colombo C. Sleep deprivation in mood disorders. Neuropsychobiology 2011; 64:141-51. [PMID: 21811084 DOI: 10.1159/000328947] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Accepted: 08/11/2009] [Indexed: 01/31/2023]
Abstract
Growing clinical evidence in support of the efficacy and safety of sleep deprivation (SD), and its biological mechanisms of action suggest that this technique can now be included among the first-line antidepressant treatment strategies for mood disorders. SD targets the broadly defined depressive syndrome, and can be administered according to several different treatment schedules: total versus partial, single versus repeated, alone or combined with antidepressant drugs, mood stabilizers, or other chronotherapeutic techniques, such as light therapy and sleep phase advance. The present review focuses on clinical evidence about the place of SD in therapy, its indications, dosage and timing of the therapeutic wake, interactions with other treatments, precautions and contraindications, adverse reactions, mechanism of action, and comparative efficacy, with the aim of providing the clinical psychiatrist with an updated, concise guide to its application.
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Affiliation(s)
- Francesco Benedetti
- Department of Clinical Neurosciences, Scientific Institute and University Vita-Salute San Raffaele, Milan, Italy.
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18
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Motor activity in depressed patients during therapeutic sleep deprivation. Eur Psychiatry 2010; 25:465-7. [PMID: 20430596 DOI: 10.1016/j.eurpsy.2009.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2008] [Revised: 10/28/2009] [Accepted: 11/19/2009] [Indexed: 11/24/2022] Open
Abstract
PROBLEM Both sleep and motor activity have a bidirectional relationship with depression. The existing literature on motor activity during therapeutic sleep deprivation in depressed patients is inconsistent and fragmentary. In the present study we measured motor activity continuously during 40 hours of sleep deprivation in depressed patients. METHOD Thirty-four inpatients suffering from a major depression (DSM-IV) underwent sleep deprivation with a continuous waking period of 40 hours. Motor activity of the patients was continuously recorded using an actigraph on the non-dominant wrist. The effect of sleep deprivation was assessed by the Hamilton Depression Scale (six-item version), thus separating the group into responders and non-responders to sleep deprivation. RESULTS We found no significant differences in motor activity between responders and non-responders on the day before sleep deprivation. During the night, responders to sleep deprivation exhibited a higher motor activity and less periods of rest. On the day after sleep deprivation, responders exhibited a higher activity, too. CONCLUSIONS Motor activity levels differ between the two groups, thus giving more insight into possible mechanisms of action of the therapeutic sleep deprivation. We suggest that higher motor activity during the night prevents naps and leads to better response to sleep deprivation.
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Kundermann B, Strate P, Hemmeter-Spernal J, Huber MT, Krieg JC, Lautenbacher S. Mid-term effects of serial sleep deprivation therapy implemented in cognitive-behavioral treatment on the neuroendocrine response to clomipramine in patients with major depression. J Psychiatr Res 2009; 43:711-20. [PMID: 18930473 DOI: 10.1016/j.jpsychires.2008.09.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Revised: 07/28/2008] [Accepted: 09/09/2008] [Indexed: 11/15/2022]
Abstract
While data dealing with neurobiological effects of sleep deprivation (SD) are mainly restricted to the acute effects of a single night, only few studies have investigated mid-term effects after repeated SD. We therefore examined the clinical and hormonal characteristics of depressive patients before and after serial SD to determine potential sustained effects, focusing especially on serotoninergic functions. One tool to investigate serotoninergic dysfunction in depression is the use of serotoninergic agents to stimulate hormonal secretion, which is assumed to normalize during a clinically effective therapy. Eighteen drug-free inpatients with unipolar major depression received cognitive-behavioral treatment for three weeks and - according to a randomized control design - additional SD therapy (six nights of total SD within three weeks, separated by nights of recovery sleep) or no SD therapy (control group). Serotoninergic function was assessed by measuring cortisol and prolactin in response to intravenously administered clomipramine (12.5mg) before and after the treatment period. The post-treatment challenge test was performed three days after the last SD night. Apart from of a transient overnight improvement of mood induced by SD, both groups showed a comparable clinical course during the three-week treatment period. Compared to the control group, the SD-treated patients exhibited significantly decreased pre-stimulation cortisol levels and significantly increased cortisol responses to clomipramine, whereas no treatment effects were observed for prolactin. In conclusion, our findings suggest that the mid-term effects of serial SD therapy lead to a normalization of serotoninergic dysfunction, although an obvious impact on clinical symptoms was not detected.
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Affiliation(s)
- Bernd Kundermann
- Department of Psychiatry and Psychotherapy, Philipps-University of Marburg, Rudolf-Bultmann-Street 8, D-35039 Marburg, Germany.
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20
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Hemmeter U, Hatzinger M, Brand S, Holsboer-Trachsler E. Effect of flumazenil-augmentation on microsleep and mood in depressed patients during partial sleep deprivation. J Psychiatr Res 2007; 41:876-84. [PMID: 16978648 DOI: 10.1016/j.jpsychires.2006.07.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2006] [Revised: 07/10/2006] [Accepted: 07/11/2006] [Indexed: 11/25/2022]
Abstract
The antidepressive effect of sleep deprivation (SD) in depressed patients disappears after sleep of the recovery night and after early morning naps. Both can provoke a rapid relapse into depression in SD-responders. In addition, the occurrence of short episodes of sleep (termed microsleep, MS) during partial SD (PSD) is associated with SD-nonresponse, suggesting that MS during the time awake may be related to relapse or PSD-nonresponse. The GABA-benzodiazepine receptor antagonist flumazenil augments vigilance and reduces NonREM-sleep pressure in early morning recovery sleep in volunteers after SD. Therefore, in this study 27 patients with major depression were subjected to a PSD. In a double blind randomized design either flumazenil or placebo was orally applied during PSD in order to examine whether the application of flumazenil reduces sleep propensity and thus, increases antidepressant efficacy of PSD. EEG was registered continuously for 60h by a portable device for the assessment of microsleep episodes at baseline and during PSD. Flumazenil application significantly suppressed frequency and total amount of MS. While the antidepressant efficacy of PSD was not different between flumazenil and placebo during PSD, the subjective mood improved after the recovery night in patients treated with flumazenil. It is concluded that GABAergic mechanisms are involved in the regulation of MS during PSD, which may be related to a mood stabilizing effect after the recovery night. However, the mechanisms underlying the association between the occurrence of MS during PSD and mood variation have to be further clarified.
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Affiliation(s)
- Ulrich Hemmeter
- University of Marburg, Clinic of Psychiatry and Psychotherapy, Rudolf Bultmann Strasse 8, 35039 Marburg, Germany.
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21
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Boonstra TW, Stins JF, Daffertshofer A, Beek PJ. Effects of sleep deprivation on neural functioning: an integrative review. Cell Mol Life Sci 2007; 64:934-46. [PMID: 17347797 PMCID: PMC2778638 DOI: 10.1007/s00018-007-6457-8] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Sleep deprivation has a broad variety of effects on human performance and neural functioning that manifest themselves at different levels of description. On a macroscopic level, sleep deprivation mainly affects executive functions, especially in novel tasks. Macroscopic and mesoscopic effects of sleep deprivation on brain activity include reduced cortical responsiveness to incoming stimuli, reflecting reduced attention. On a microscopic level, sleep deprivation is associated with increased levels of adenosine, a neuromodulator that has a general inhibitory effect on neural activity. The inhibition of cholinergic nuclei appears particularly relevant, as the associated decrease in cortical acetylcholine seems to cause effects of sleep deprivation on macroscopic brain activity. In general, however, the relationships between the neural effects of sleep deprivation across observation scales are poorly understood and uncovering these relationships should be a primary target in future research.
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Affiliation(s)
- T W Boonstra
- Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Van der Boechorststraat 9, Amsterdam, The Netherlands.
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22
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Grassi Zucconi G, Cipriani S, Balgkouranidou I, Scattoni R. 'One night' sleep deprivation stimulates hippocampal neurogenesis. Brain Res Bull 2006; 69:375-81. [PMID: 16624668 DOI: 10.1016/j.brainresbull.2006.01.009] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2005] [Revised: 01/20/2006] [Accepted: 01/20/2006] [Indexed: 12/20/2022]
Abstract
Neurogenesis in the adult hippocampus can be up- or downregulated in response to a variety of physiological and pathological conditions. Among these, dysregulation of hippocampal neurogenesis has been recently implicated in the pathogenesis of depression. In addition, in animal models of depression, a variety of antidepressant treatments reverse that condition by increasing neurogenesis. As one night sleep deprivation is known to improve mood in depressed patients for at least 1 day, we investigated whether a comparable treatment may affect hippocampal neurogenesis in adult rats. Accordingly, rats were sleep-deprived by gentle handling for 12 h during their physiological period of rest, and were injected with bromodeoxyuridine 4 h and 2 h before the end of sleep deprivation. They were then perfused immediately thereafter, or after 15 days and 30 days. We found that 12 h sleep deprivation significantly increased cell proliferation and the total number of surviving cells in the hippocampal dentate gyrus soon after sleep deprivation, as well as 15 days and 30 days later, in comparison to control rats allowed to sleep. No changes were instead found in the subventricular zone of the lateral ventricles, indicating that 12 h sleep deprivation selectively triggers neurogenic signals to the hippocampus. The present data include acute sleep deprivation among the conditions which upregulate hippocampal neurogenesis and raise the possibility that such response could be implicated in the beneficial effects elicited in depressed patients by one night sleep deprivation. Thus, the findings could contribute to the understanding of the intriguing relationship between depression and neurogenesis in the adult brain.
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Schüle C, Di Michele F, Baghai T, Romeo E, Bernardi G, Zwanzger P, Padberg F, Pasini A, Rupprecht R. Neuroactive Steroids in Responders and Nonresponders to Sleep Deprivation. Ann N Y Acad Sci 2004; 1032:216-23. [PMID: 15677414 DOI: 10.1196/annals.1314.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Evidence from preclinical and clinical studies indicates that concentrations of neuroactive steroids are altered in depression and normalize after antidepressant pharmacotherapy. However, data on the impact of sleep deprivation on concentrations of neuroactive steroids are not available. Therefore, 29 drug-free patients (12 men, 17 women) with major depression according to DSM-IV criteria were treated with partial sleep deprivation (PSD). Response to PSD was defined as a reduction of at least 30% according to the 6-item version of the Hamilton Depression Scale (6-HAMD). Plasma samples were taken the day before and the day after PSD (day 0 and 1) and after one night of recovery sleep (day 2) at 8:00 am. Samples were quantified for neuroactive steroids by means of a highly sensitive and specific combined gas chromatography/mass spectrometry analysis. PSD did not influence concentrations of neuroactive steroids in either PSD responders (n = 20) or nonresponders (n = 9). However, nonresponders showed significantly higher concentrations of 3alpha,5alpha-tetrahydroprogesterone, 3alpha,5beta-tetrahydroprogesterone, and dehydroepiandrosterone before or after PSD compared to responders. In contrast to antidepressant drugs which correct the dysequilibrium of neuroactive steroids in major depression within several weeks, PSD does not affect the concentrations of neuroactive steroids in either responders or nonresponders.
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Affiliation(s)
- Cornelius Schüle
- Department of Psychiatry, Ludwig-Maximilian-University, Nussbaumstr. 7, 80336 Munich, Germany
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24
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Berger M, van Calker D, Riemann D. Sleep and manipulations of the sleep-wake rhythm in depression. Acta Psychiatr Scand Suppl 2004:83-91. [PMID: 12956821 DOI: 10.1034/j.1600-0447.108.s418.17.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Disturbed sleep is typical for most depressed patients and complaints about disordered sleep are the hallmarks of the disorder. Polysomnographic sleep research has demonstrated that besides impaired sleep continuity, sleep in depression is characterized by a reduction of slow wave sleep and a disinhibition of random eye movement (REM) sleep, with a shortening of REM latency, a prolongation of the first REM period and increased REM density. METHOD Our own experimental work has focused on the reciprocal interaction hypothesis of non-REM and REM sleep regulation as a model to explain the characteristic features of depressed sleep. RESULTS In agreement with the major tenet of this model, administration of cholinomimetics provoked shortened REM latency in healthy subjects and led to an even stronger REM sleep disinhibition in depressed patients. Manipulations of the sleep-wake cycle, such as sleep deprivation or a phase advance of the sleep period, alleviate depressive symptoms. CONCLUSION These data indicate a strong bidirectional relationship between sleep, sleep alterations and depression.
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Affiliation(s)
- M Berger
- Department of Psychiatry and Psychotherapy, University Hospital of Freiburg, Germany
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25
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Schüle C, di Michele F, Baghai T, Romeo E, Bernardi G, Zwanzger P, Padberg F, Pasini A, Rupprecht R. Influence of sleep deprivation on neuroactive steroids in major depression. Neuropsychopharmacology 2003; 28:577-81. [PMID: 12629540 DOI: 10.1038/sj.npp.1300084] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
There is evidence from preclinical and clinical studies that concentrations of neuroactive steroids are altered in depression and normalize after antidepressant pharmacotherapy. However, no data are available concerning the impact of sleep deprivation on the concentrations of neuroactive steroids. A total of 29 drug-free patients (12 men, 17 women) suffering from major depression according to DSM-IV criteria were treated with partial sleep deprivation (PSD). Response to PSD was defined as a reduction of at least 30% according to the six-item version of the Hamilton depression scale (6-HAMD). Plasma samples were taken the day before and after PSD (days 0 and 1) and after one night of recovery sleep (day 2) at 8:00 am. The samples were quantified for neuroactive steroids by means of a highly sensitive and specific combined gas chromatography/mass spectrometry analysis. There was no influence of PSD on the concentrations of neuroactive steroids either in PSD responders (n=20) or in nonresponders (n=9). However, nonresponders showed significantly higher concentrations of 3alpha,5alpha-tetrahydroprogesterone (3alpha,5alpha-THP), 3alpha,5beta-tetrahydroprogesterone (3alpha,5beta-THP), and dehydroepiandrosterone (DHEA) before or after PSD compared to responders. In contrast to antidepressant drugs, which correct the dysequilibrium of neuroactive steroids in major depression within several weeks, PSD does not affect the concentrations of neuroactive steroids either in responders or in nonresponders.
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Affiliation(s)
- Cornelius Schüle
- Department of Psychiatry, Ludwig-Maximilian-University, Munich, Germany
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26
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Abstract
In the last 30 years, it has been convincingly demonstrated that sleep in major depression is characterized by disturbances of sleep continuity, a reduction of slow wave sleep, a disinhibition of REM sleep including a shortening of REM latency (i.e. the time between sleep onset and the occurrence of the first REM period) and an increase in REM density. Furthermore, manipulations of the sleep-wake cycle like total or partial sleep deprivation or phase advance of the sleep period have been proven to be effective therapeutic strategies for patients with unipolar depression. The database concerning sleep and sleep-wake manipulations in bipolar disorder in comparison is not yet as extensive. Studies investigating sleep in bipolar depression suggest that during the depressed phase sleep shows the same stigmata as in unipolar depression. During the hypomanic or manic phase, sleep is even more curtailed, though subjectively not experienced as disturbing by the patients. REM sleep disinhibition is present as well. An important issue is the question, whether sleep-wake manipulations can also be applied in patients with bipolar depression. Work by others and our own studies indicate that sleep deprivation and a phase advance of the sleep period can be used to treat bipolar patients during the depressed phase. The risk of a switch into hypomania or mania does not seem to be more pronounced than the risk with typical pharmacological antidepressant treatment. For patients with mania, sleep deprivation is not an adequate treatment--in contrast, treatment strategies aiming at stabilizing a regular sleep-wake schedule are indicated.
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Affiliation(s)
- Dieter Riemann
- Department of Psychiatry and Psychotherapy, University Hospital of Freiburg, Germany.
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Gillin JC, Buchsbaum M, Wu J, Clark C, Bunney W. Sleep deprivation as a model experimental antidepressant treatment: findings from functional brain imaging. Depress Anxiety 2002; 14:37-49. [PMID: 11568981 DOI: 10.1002/da.1045] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
This paper reviews the functional brain imaging studies in depressed patients treated with sleep deprivation. Sleep deprivation is an excellent experimental model of antidepressant treatments which offer new opportunities to understand the basic neural mechanisms. Its antidepressant effects are efficacious and rapid; sleep deprivation is easy to administer, inexpensive, and relatively safe; it can be studied in patients, normal controls, and animals; and it may lead to new treatments and new paradigms for antidepressant therapies. Seven published papers, coming from five different research centers, using either positron emission tomography (PET) with 18fluorodeoxyglucose (FDG) or single photon emission computerized tomography (SPECT) with Technetium-99-bexamethyl propyleneamine oxime (HMPAO) have relatively consistent findings. First, before sleep deprivation, responders have significantly elevated metabolism compared with non-responders, and usually the normal controls, in the orbital medial prefrontal cortex, and especially in the ventral portions of the anterior cingulate cortex. Secondly, after sleep deprivation, these hyperactive areas normalize in the responders. The magnitude of the clinical improvement was significantly correlated with decreased local glucose metabolic rate or cerebral blood flow in three studies. The results are consistent with some but not all functional brain imaging studies of antidepressant medications in depressed patients. Finally, a SPECT study using a radioactively labeled D2 receptor antagonist suggests that the antidepressant benefits of sleep deprivation are correlated with endogenous release of dopamine.
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Affiliation(s)
- J C Gillin
- Department of Psychiatry, UCSD and VA San Diego Healthcare System (116a), 3350 La Jolla Village Drive, San Diego, CA 92161, USA.
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28
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Schüle C, Baghai T, Zwanzger P, Minov C, Padberg F, Rupprecht R. Sleep deprivation and hypothalamic-pituitary-adrenal (HPA) axis activity in depressed patients. J Psychiatr Res 2001; 35:239-47. [PMID: 11578642 DOI: 10.1016/s0022-3956(01)00027-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In the present study we investigated HPA axis activity in depressed patients treated with partial sleep deprivation (PSD) in order to identify endocrinological characteristics related to PSD responsiveness. Thirty-three drug-free patients (14 men, 19 women) suffering from major depression according to DSM-IV criteria were treated with PSD. Response to PSD was defined as a reduction of at least 30% according to the 6-item version of the Hamilton Depression Scale (6-HAMD). Subsequently, the combined dexamethasone-suppression/CRH-stimulation test (DEX/CRH test) was performed. Patients were pretreated with 1.5 mg dexamethasone (DEX) at 23:00 h and challenged with 100 microg corticotropin-releasing hormone (CRH) the following day. Postdexamethasone cortisol concentrations (before CRH administration) served as parameters for the DST status (dexamethasone suppression test). The cortisol stimulation after CRH was used as measurement for the DEX/CRH test status. Of the depressive patients, 54.5% (18 out of 33) responded to PSD. DST suppressors (postdexamethasone cortisol levels < 15 ng/ml) showed a significantly greater reduction in 6-HAMD scores after PSD than DST nonsuppressors. Furthermore, a significant negative correlation between postdexamethasone cortisol levels and reduction in 6-HAMD scores after PSD could be established. However, there was no relationship between the cortisol stimulation following CRH challenge and response to PSD. Although the combined DEX/CRH challenge test is a more sensitive marker for HPA axis dysregulation in depression than the standard DST, the negative feedback of the HPA system reflected by the DST status is apparently more closely associated with response to partial sleep deprivation in major depressive disorder.
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Affiliation(s)
- C Schüle
- Department of Psychiatry, Ludwig-Maximilian-University, Nussbaumstr. 7, 80336 Munich, Germany.
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29
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Riemann D, Berger M, Voderholzer U. Sleep and depression--results from psychobiological studies: an overview. Biol Psychol 2001; 57:67-103. [PMID: 11454435 DOI: 10.1016/s0301-0511(01)00090-4] [Citation(s) in RCA: 397] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Disturbances of sleep are typical for most depressed patients and belong to the core symptoms of the disorder. Polysomnographic sleep research has demonstrated that besides disturbances of sleep continuity, in depression sleep is characterized by a reduction of slow wave sleep and a disinhibition of REM sleep, with a shortening of REM latency, a prolongation of the first REM period and increased REM density. These findings have stimulated many sleep studies in depressive patients and patients with other psychiatric disorders. In the meantime, several theoretical models, originating from basic research, have been developed to explain sleep abnormalities of depression, like the two-process-model of sleep and sleep regulation, the GRF/CRF imbalance model and the reciprocal interaction model of non-REM and REM sleep regulation. Interestingly, most of the effective antidepressant agents suppress REM sleep. Furthermore, manipulations of the sleep-wake cycle, like sleep deprivation or a phase advance of the sleep period, alleviate depressive symptoms. These data indicate a strong bi-directional relationship between sleep, sleep alterations and depression.
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Affiliation(s)
- D Riemann
- Department of Psychiatry and Psychotherapy, University hospital of Freiburg, Hauptstrasse 5, 79104, Freiburg, Germany.
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30
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Nissen C, Feige B, König A, Voderholzer U, Berger M, Riemann D. Delta sleep ratio as a predictor of sleep deprivation response in major depression. J Psychiatr Res 2001; 35:155-63. [PMID: 11461711 DOI: 10.1016/s0022-3956(01)00021-8] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The fast but short-lasting improvement of depressive symptoms by sleep deprivation (SD) in about 60% of patients with a major depressive disorder is well established, but the mechanisms of action are still not clear. Recent studies suggest that changes in non rapid eye movement (NREM) sleep, especially in slow wave activity (SWA), could be associated with the therapeutic outcome of SD. In the current study, spectral analysis of NREM sleep EEG directly prior to SD was performed to determine if automatically derived sleep parameters predict SD response. Sixteen pair matched and drug free patients with a major depressive disorder, 8 SD responders and 8 non-responders (response criterion: 50% reduction on the 6-item HAMD score), were included. Average EEG spectral power was calculated for the whole night before SD and for single NREM episodes. While whole-night averages of spectral power did not differ significantly between subgroups, SD responders showed a steady decrease of SWA across successive NREM episodes, whereas in non-responders an increase from the first to the second episode was observed. The different distribution of SWA was significantly expressed in the delta sleep ratio (quotient of SWA in the first to the second NREM episode). In conclusion, a high delta sleep ratio is a positive predictor for SD response. Referred to psycho- and pharmacotherapeutic results it is hypothesized that low and high values of the delta sleep ratio characterize subgroups of depressed patients with different neurobiological alterations, which could be relevant for further scientific and therapeutic approaches.
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Affiliation(s)
- C Nissen
- Department of Psychiatry and Psychotherapy of the University Hospital of Freiburg, Hauptstrasse 5, D-79104 Freiburg, Germany
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Abstract
BACKGROUND Patterns of response and nonresponse in repeated sleep deprivation (SD) are of both clinical and scientific interest; as yet, studies have yielded inconsistent results. METHODS Eighteen inpatients suffering from a major depression were subjected to a series of six scheduled total sleep deprivations within 3 weeks; 12 of them completed the whole protocol. All were under a constant antidepressant medication with amitriptyline. SD effects were measured using observer and self rating scales. RESULTS Each single SD led to a significant improvement. Of the 12 patients who completed the protocol, seven were classified as responders at endpoint (i.e., 1 week after the sixth TSD). The majority of patients exhibited a pattern of responses and nonresponses randomly distributed over time. There was no temporal trend. The initial effect did not predict the average response to the following SDs. LIMITATIONS One third of patients dropped out before completing the protocol which limits the scope of the study. CONCLUSIONS Response to a single SD is not generalizable on a series of following SDs in an individual. The mechanism of action of SD does probably not involve mechanisms subjected to habituation or sensitization.
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Affiliation(s)
- M H Wiegand
- Department of Psychiatry and Psychotherapy, Technical University, Munich, Germany.
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Heiser P, Dickhaus B, Opper C, Hemmeter U, Remschmidt H, Wesemann W, Krieg JC, Schreiber W. Alterations of host defence system after sleep deprivation are followed by impaired mood and psychosocial functioning. World J Biol Psychiatry 2001; 2:89-94. [PMID: 12587190 DOI: 10.3109/15622970109027498] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In healthy humans, sleep deprivation (SD) has consistently been demonstrated to impair different parameters of the host defence system and of psychosocial functioning. However, the individual timing of these alterations and their possible association have remained unknown so far. We therefore investigated functional measures of the individual host defence system as well as of subjective well-being and psychosocial performance in 10 healthy male adults before and after SD, as well as after recovery sleep. In detail, we examined the number of leukocytes, granulocytes, monocytes, lymphocytes, B cells, T cells, T helper and cytotoxic T cells, natural killer (NK) cells as well as the interleukin-1 beta (IL-1 beta) release from platelets after serotonin (5-HT) stimulation. Mood and psychosocial performance (excitement, energy, ability to work and timidity) were measured by visual analogue scales. Taken together, SD induced a deterioration of both mood and ability to work, which was most prominent in the evening after SD, while the maximal alterations of the host defence system could be found twelve hours earlier, i.e., already in the morning following SD. Our findings therefore suggest an SD-induced alteration of these psychoimmune response patterns in healthy humans preceding deterioration of mood and psychosocial functioning.
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Affiliation(s)
- P Heiser
- Department of Neurochemistry, Department of Child and Adolescent Psychiatry and Psychotherapy, Philipps University, Hans-Sachs-Str. 6, 35037 Marburg, Germany.
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Leibenluft E, Suppes T. Treating bipolar illness: focus on treatment algorithms and management of the sleep-wake cycle. Am J Psychiatry 1999; 156:1976-81. [PMID: 10588413 DOI: 10.1176/ajp.156.12.1976] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- E Leibenluft
- Pediatrics and Developmental Neuropsychiatry Branch, NIMH, Bethesda, MD 20892-1255, USA.
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Abstract
Manipulations of the sleep-wake cycle, whether of duration (total or partial sleep deprivation [SD]) or timing (partial SD, phase advance), have profound and rapid effects on depressed mood in 60% of all diagnostic subgroups of affective disorders. Relapse after recovery sleep is less when patients are receiving medication; it may be prevented by co-administration of lithium, pindolol, serotonergic antidepressants, bright light, or a subsequent phase advance procedure. Diurnal and day-to-day mood variability predict both short-term response to SD and long-term response to antidepressant drug treatment. These mood patterns can be understood in terms of a "two-process model of mood regulation" based on the model well established for sleep regulation: the interaction of circadian and homeostatic processes. The therapeutic effect of SD is postulated to be linked to changes in disturbed circadian- and sleep-wake-dependent phase relationships and concomitant increase of slow-wave-sleep pressure; additionally, SD-induced sleepiness may counteract the hyperarousal state in depression. This model has the advantage of providing a comprehensive theoretical framework and stringent protocols ("constant routine," "forced desynchrony") to dissect out specific disturbances. Many aspects tie in with current serotonergic receptor hypotheses of SD action. A treatment inducing euthymia in severely depressed patients within hours is an important therapeutic option that has come of age for clinical use.
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Affiliation(s)
- A Wirz-Justice
- Chronobiology and Sleep Laboratory, Psychiatric University Clinic, Basel, Switzerland
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Demet EM, Chicz-Demet A, Fallon JH, Sokolski KN. Sleep deprivation therapy in depressive illness and Parkinson's disease. Prog Neuropsychopharmacol Biol Psychiatry 1999; 23:753-84. [PMID: 10509373 DOI: 10.1016/s0278-5846(99)00039-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
1. Sleep deprivation is commonly associated with feelings of fatigue and cognitive impairment. 2. Patients with depressive illness, however, often experience mood improvements under these same conditions. 3. Other studies now show that tremor and rigidity, in patients with Parkinson's disease, are also improved by sleep depression therapy. 4. The neural substrates which underlie these effects are unclear. Some recent evidence, however, suggests that sleep deprivation may activate mechanisms which are otherwise typical of conditions of metabolic stress. 5. A common feature of these mechanisms is the suppression of cholinergic activity which is thought to be excessive, in relation to monoamine transmission, in both depression and Parkinson's disease.
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Affiliation(s)
- E M Demet
- Mental Health Care Group, VA Medical Center, Long Beach, CA, USA
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Hemmeter U, Bischof R, Hatzinger M, Seifritz E, Holsboer-Trachsler E. Microsleep during partial sleep deprivation in depression. Biol Psychiatry 1998; 43:829-39. [PMID: 9611673 DOI: 10.1016/s0006-3223(97)00297-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Sleep deprivation (SD) exerts a beneficial effect on mood and sleep in about 60% of depressed patients usually followed by a relapse into depression after the recovery night. Short phases of sleepiness, especially naps in the early morning, may be responsible for this phenomenon. METHODS To evaluate the effect of short, even ultrashort phases of sleep-microsleep (MS) during partial sleep deprivation (PSD) on mood, cognitive psychomotor performance (CPP), and sleep, an electroencephalograph (EEG) was continuously recorded over 60 hours in 12 patients with major depression. Subjective mood was assessed by a visual analogue scale and CPP by a letter cancellation test. RESULTS The results illustrate that in depressed patients during PSD the amount of MS is increased, predominantly in the early morning, which was subjectively unrecognized and not observed by nursing staff. Patients with a low cumulative amount of MS during PSD improved significantly in mood, CPP, and sleep pattern compared to the patients with a high amount of MS who showed only slight changes. CONCLUSION Therefore, accumulated MS may influence the SD-induced positive effects in depressed patients.
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Affiliation(s)
- U Hemmeter
- Depression Research Unit, Psychiatric University Hospital, Basel, Switzerland
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Heiser P, Dickhaus B, Opper C, Schreiber W, Clement HW, Hasse C, Hennig J, Krieg JC, Wesemann W. Platelet serotonin and interleukin-1 beta after sleep deprivation and recovery sleep in humans. J Neural Transm (Vienna) 1998; 104:1049-58. [PMID: 9503257 DOI: 10.1007/bf01273318] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Sleep deprivation (SD) represents a well-established therapy for major depression. Recent findings suggest that the antidepressive effects of sleep deprivation are mediated at least in part by pro-serotoninergic mechanisms. Furthermore, SD has been demonstrated to modify different host defense activities. We therefore investigated the serotonin (5-HT) content in platelets, platelet density distribution and 5-HT-induced IL-1 beta release from platelets in 10 healthy men before and after total SD (TSD) as well as after recovery sleep. Blood samples were drawn on 3 consecutive days at 7.00 h, 13.00 h, and 19.00 h, respectively. In addition, the psychophysiological parameters tiredness and wakefulness were assessed. After TSD the normal daily variation of IL-1 beta release with high morning levels and low evening levels was found to be significantly inverted. The release of IL-1 beta corresponded positively to the subjectively experienced tiredness of the probands. Analysis of platelet density distribution indicated a significant daily variation of low density platelets with low levels in the morning and high levels in the evening, which was absent after TSD. Our findings favour an increased pro-serotoninergic effect after TSD, which comprises respective variations of the host defense system, but is abolished by consecutive recovery sleep.
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Affiliation(s)
- P Heiser
- Institute of Physiological Chemistry, Philipps University, Marburg, Federal Republic of Germany
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Pollmächer T, Mullington J, Lauer CJ. REM sleep disinhibition at sleep onset: a comparison between narcolepsy and depression. Biol Psychiatry 1997; 42:713-20. [PMID: 9325565 DOI: 10.1016/s0006-3223(96)00437-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Shortened REM latency and increased REM density are frequently observed in both narcolepsy and depression, suggesting a common mechanism of REM sleep disinhibition in these disorders. We compared night sleep recordings of 24 depressive and 24 narcoleptic patients. The amount of REM sleep and REM density did not differ between the patient groups; however, REM latency distributions differed significantly. Whereas in narcoleptic patients REM episodes started either immediately at sleep onset or following at least 60 min of non-REM sleep, in depressives two thirds of REM latencies were in the range from 1 to 60 min. In narcoleptic patients, short as compared to long REM latencies were associated with longer total sleep time, greater sleep efficiency, reduced amounts of wakefulness, and increased amounts of slow-wave sleep. In depressive subjects the reverse pattern was seen. We conclude that a common mechanism of REM sleep disinhibition in narcolepsy and depression is very unlikely.
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Affiliation(s)
- T Pollmächer
- Max Planck Institute of Psychiatry, Clinical Institute, Munich, Germany
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Le Bon O, Staner L, Murphy JR, Hoffmann G, Pull CH, Pelc I. Critical analysis of the theories advanced to explain short REM sleep latencies and other sleep anomalies in several psychiatric conditions. J Psychiatr Res 1997; 31:433-50. [PMID: 9352471 DOI: 10.1016/s0022-3956(97)00017-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
One of the most consistent and most studied sleep modifications in several psychiatric conditions is the shortening of the rapid eye movement (REM) sleep latency. While its clinical usefulness is still to be proven and its meaning relatively obscure, the appearance of a short REM latency continues to be a daily fact in sleep laboratories. Many theories compete to explain what is observed, the most important being the circadian rhythm hypotheses, the homeostatic model and the reciprocal interaction model. These three are summarised and their pros and cons are exposed in a systematic manner. Points of conflict, possible convergences and limitations are discussed in the light of recent developments on the general theories of sleep regulation.
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Affiliation(s)
- O Le Bon
- Université Libre de Bruxelles, Centre Hospitalier Universitaire Brugmann, Service de Psychiatrie et de Psychologie médicale, Belgium
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Schreiber W, Opper C, Dickhaus B, Heiser P, Wesemann W, Krieg JC. Alterations of blood platelet MAO-B activity and LSD-binding in humans after sleep deprivation and recovery sleep. J Psychiatr Res 1997; 31:323-31. [PMID: 9306290 DOI: 10.1016/s0022-3956(96)00062-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Sleep deprivation (SD) is an effective, however short-lived, method of treatment of depression. Preliminary findings suggest that the antidepressive effect of sleep deprivation is mediated by serotoninergic (5-HT) mechanisms. We therefore assessed serotoninergic activity before and after total SD (TSD) as well as after the following night sleep by investigating platelet LSD-binding, MAO B-activity, and 5-HT-content as well as plasma norepinephnne (NE) in 10 healthy men (age: 27.4 +/- 2.8 years). Blood samples were drawn on three consecutive days at 0700, 1300 and 1900 h, respectively. After TSD, a significant increase of LSD-binding KD and Bmax as well as of MAO-B KM and plasma NE could be observed, which, however, vanished after consecutive night sleep. Our findings favour an increased serotoninergic transmission after TSD and thus support the hypothesis, that sleep deprivation exerts its antidepressant effects by pro-serotoninergic mechanisms.
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Affiliation(s)
- W Schreiber
- Department of Psychiatry and Psychotherapy, Philipps-University, Marburg, Germany.
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Riemann D, Hohagen F, König A, Schwarz B, Gomille J, Voderholzer U, Berger M. Advanced vs. normal sleep timing: effects on depressed mood after response to sleep deprivation in patients with a major depressive disorder. J Affect Disord 1996; 37:121-8. [PMID: 8731074 DOI: 10.1016/0165-0327(95)00082-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Total sleep deprivation (TSD) exerts beneficial but only transient effects on mood in patients with a major depressive disorder (MDD). Though approximately 50 to 70% of depressed patients improve after sleep deprivation, the majority relapse after recovery sleep, some even after a short nap. One theoretical model postulates a critical period in the early morning hours where sleep is likely to induce a relapse, and nap studies indicate that sleep may be particularly 'depressogenic' at this time of day. A second model attributes the relapse to the release of non-REM sleep. We therefore compared the impact of an advanced sleep period (17:00-24:00 h) to a normal sleep period (23:00-06:00 h) on mood in patients who had responded to sleep deprivation. Less relapses into depression occurred after advanced sleep. Polysomnographic data showed that, as expected, normal sleep was characterized by a more pronounced improvement of sleep continuity and increased slow-wave sleep. The normal sleep group showed a stronger decrease in REM sleep density than the advanced sleep group compared with baseline. These data add to a growing body of evidence that the timing of sleep following successful sleep deprivation may be crucial for a stabilization of its antidepressant effect. Thus, avoidance of sleep during a "critical period' for more than a single night is necessary to provide a longer-lasting treatment modality.
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Affiliation(s)
- D Riemann
- Psychiatric Department, University of Freiburg, Germany
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Abstract
Various studies suggest that some sleep functions, especially some slow wave sleep functions, are indispensable in mammals and related to brain regulation. It has been proposed that two of these functions are the adjustment of emotional balance and the processing of acquired emotional memories. During waking, the gradual accumulation of various randomly learned emotional memories in the limbic structures would inevitably imbalance and disorganize emotional behaviors. Although the emotional balance can be restored during waking by the ascending NA, DA, ACh and 5-HT systems, their roles in memory retention and emotional regulation may sometimes be dissociated and their adjustment of the emotional balance can only be a transient effect. On the other hand, the function of slow wave sleep for emotional adjustment can be long-lasting and is in agreement with its function on the processing of emotional memories. As a result, these sleep functions become indispensable in preventing the emotional imbalance inevitably caused by the accumulation of emotional memories. The effects of rapid eye movement sleep on memory and emotional regulation are just opposite to those of slow wave sleep. Low vigilance is required as premise for sleep to accomplish these indispensable functions.
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Affiliation(s)
- Z J Cai
- Neurobehavioral Laboratory, Shanghai Brain Research Institute, P.R. China
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Abstract
The common treatment modalities for depression, i.e. pharmacotherapy and psychotherapy have the significant disadvantage of at least a three- to four-week time lag between initiation of treatment and amelioration of mood. Total sleep deprivation (TSD) in contrast, leads to an immediate antidepressant effect in 60% of the patients. However, it has gained only little clinical relevance as usually the improvement is only transient and almost regularly reversed by the next nights of sleep. A procedure preserving the antidepressive effect of sleep deprivation would therefore be of high clinical relevance.
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44
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Van den Hoofdakker RH. Chronobiological theories of nonseasonal affective disorders and their implications for treatment. J Biol Rhythms 1994; 9:157-83. [PMID: 7873775 DOI: 10.1177/074873049400900206] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- R H Van den Hoofdakker
- Department of Biological Psychiatry, University Psychiatric Clinic, Groningen, The Netherlands
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45
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Berger M, Riemann D. Symposium: Normal and abnormal REM sleep regulation: REM sleep in depression-an overview. J Sleep Res 1993; 2:211-223. [PMID: 10607097 DOI: 10.1111/j.1365-2869.1993.tb00092.x] [Citation(s) in RCA: 84] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Abnormalities of REM sleep, i.e. shortening of REM latency, lengthening of the duration of the first REM period and heightening of REM density, which are frequently observed in patients with a major depressive disorder (MDD), have attracted considerable interest. Initial hopes that these aberrant patterns of sleep constitute specific markers for the primary/endogenous sub-type of depression have not been fulfilled. The specificity of REM sleep disinhibition for depression in comparison with other psychopathological groups is challenged as well. Demographic variables like age and sex exert strong influences on sleep physiology and must be controlled when searching for specific markers of depressed sleep. It is still an open question whether abnormalities of sleep are state- or trait-markers of depression. Beyond baseline studies, the cholinergic REM induction test (CRIT) indicated a heightened responsitivity of the REM sleep system to cholinergic challenge in depression compared with healthy controls and other psychopathological groups, with the exception of schizophrenia. A special role for REM sleep in depression is supported by the well-known REM sleep suppressing effect of most antidepressants. The antidepressant effect of selective REM deprivation by awakenings stresses the importance of mechanisms involved in REM sleep regulation for the understanding of the pathophysiology of depressive disorders. The positive effect of total sleep deprivation on depressive mood which can be reversed by daytime naps, furthermore emphasizes relationships between sleep and depression. Experimental evidence as described above instigated several theories like the REM deprivation hypothesis, the 2-process model and the reciprocal interaction model of nonREM-REM sleep regulation to explain the deviant sleep pattern of depression. The different models will be discussed with reference to empirical data gathered in the field.
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Affiliation(s)
- M Berger
- Psychiatric Clinic of the University of Freiburg, Germany
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46
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Riemann D, Wiegand M, Lauer CJ, Berger M. Naps after total sleep deprivation in depressed patients: are they depressiogenic? Psychiatry Res 1993; 49:109-20. [PMID: 8153186 DOI: 10.1016/0165-1781(93)90099-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Total sleep deprivation (TSD) exerts beneficial but transient effects on mood in approximately 60% of patients with a major depressive disorder. The positive effects of a night of total sleep deprivation are generally reversed after the next night of sleep. Several anecdotal reports and a pilot study by our group indicated that even short naps during the period of sleep deprivation are capable of re-inducing depressive mood in responders to TSD. The present study explored whether the structure of naps at 9 a.m. was crucial for the "depressiogenic" impact of naps on mood. A negative effect on mood was replicated, but this effect was not related to any of the nap sleep variables. The effect of naps on mood was attenuated in the early afternoon. The results support the assumption of a "depressiogenic" effect of naps in patients with major depression after successful TSD.
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Affiliation(s)
- D Riemann
- Sleep-EEG Laboratory, Psychiatric Clinic, Central Institute of Mental Health, Mannheim, Germany
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