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Davinelli S, Medoro A, Savino R, Scapagnini G. Sleep and Oxidative Stress: Current Perspectives on the Role of NRF2. Cell Mol Neurobiol 2024; 44:52. [PMID: 38916679 PMCID: PMC11199221 DOI: 10.1007/s10571-024-01487-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 06/15/2024] [Indexed: 06/26/2024]
Abstract
Sleep is a fundamental conserved physiological state across evolution, suggesting vital biological functions that are yet to be fully clarified. However, our understanding of the neural and molecular basis of sleep regulation has increased rapidly in recent years. Among various processes implicated in controlling sleep homeostasis, a bidirectional relationship between sleep and oxidative stress has recently emerged. One proposed function of sleep may be the mitigation of oxidative stress in both brain and peripheral tissues, contributing to the clearance of reactive species that accumulate during wakefulness. Conversely, reactive species, such as reactive oxygen species (ROS) and reactive nitrogen species (RNS), at physiological levels, may act as signaling agents to regulate redox-sensitive transcriptional factors, enzymes, and other effectors involved in the regulation of sleep. As a primary sensor of intracellular oxidation, the transcription factor NRF2 is emerging as an indispensable component to maintain cellular redox homeostasis during sleep. Indeed, a number of studies have revealed an association between NRF2 dysfunction and the most common sleep conditions, including sleep loss, obstructive sleep apnea, and circadian sleep disturbances. This review examines the evidence of the intricate link between oxidative stress and NRF2 function in the context of sleep, and highlights the potential of NRF2 modulators to alleviate sleep disturbances.
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Affiliation(s)
- Sergio Davinelli
- Department of Medicine and Health Sciences "V. Tiberio", University of Molise, Via F. De Sanctis, s.n.c., 86100, Campobasso, Italy.
| | - Alessandro Medoro
- Department of Medicine and Health Sciences "V. Tiberio", University of Molise, Via F. De Sanctis, s.n.c., 86100, Campobasso, Italy
| | - Rosa Savino
- Department of Woman and Child, Neuropsychiatry for Child and Adolescent Unit, General Hospital "Riuniti" of Foggia, Viale Pinto Luigi, 1, 71122, Foggia, Italy
| | - Giovanni Scapagnini
- Department of Medicine and Health Sciences "V. Tiberio", University of Molise, Via F. De Sanctis, s.n.c., 86100, Campobasso, Italy
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2
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Hellström A, Bremer A, Gunnarsson L, Hjelm C. Sleep in cardiac arrest survivors. Nurs Crit Care 2023; 28:870-877. [PMID: 36168674 PMCID: PMC10947339 DOI: 10.1111/nicc.12843] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 08/16/2022] [Accepted: 09/14/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Insomnia, sleep apnoea and sleep loss are risk factors for the development of cardiovascular diseases. Most research on sleep disturbances includes patients with heart failure, while the role of sleep in sudden cardiac arrest survivors (SCA) has been only partially investigated and understood. Sleep-related breathing disorders and obstructive sleep apnoea increase illness and mortality in the aftermath of SCA. Also, post-traumatic stress is evident in SCA survivors, where sleep disruptions are some of the main symptoms of the condition. Consequently, it is important to identify sleep problems in SCA survivors at an early stage to avoid unnecessary suffering. AIM The aim of this study was to investigate registered nurses' perceptions of SCA survivors' sleep, both in hospital and after discharge. STUDY DESIGN This was an explorative interview study with a phenomenographic approach. Nineteen registered nurses (RNs) varying in age, sex and years in the profession participated. FINDINGS The nurses' perceptions of SCA survivors' sleep were categorized as: "The observer - noticing behaviours, emotions and habits of the patient that affect sleep", "The oblivious witness - attitudes that hinder the ability to recognise sleep behaviours", and "The practitioner - advising and medicating for sleep". The outcome space showed that the nurses detected both obvious and subtle signs relating to patients' sleep. However, attitudes hindering the recognition of sleep behaviours were independent of acting as an observer or practitioner. If nothing unforeseen was observed, or if the patient did not spontaneously raise the subject, sleep was considered less important than other health problems in SCA survivors. CONCLUSIONS Although the nurses knew that SCA survivors suffered from poor sleep, they failed to reflect on the consequences for the patient. Nurses' feelings of insufficient knowledge about sleep, as well as their omittance of sleep in the follow-up documentation could leave sleep issues unaddressed and cause unnecessary patient suffering. RELEVANCE TO CLINICAL PRACTICE Nurses need increased knowledge and training to enable them to detect subtle signs of sleep problems in SCA survivors.
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Affiliation(s)
- Amanda Hellström
- Faculty of Health and Life SciencesLinnaeus UniversityKalmar/VäxjöSweden
| | - Anders Bremer
- Faculty of Health and Life SciencesLinnaeus UniversityKalmar/VäxjöSweden
| | | | - Carina Hjelm
- Department of Health, Medicine and CareNursing and Reproductive Health Linköping UniversityLinköpingSweden
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Shah R, Shah VK, Emin M, Gao S, Sampogna RV, Aggarwal B, Chang A, St-Onge MP, Malik V, Wang J, Wei Y, Jelic S. Mild sleep restriction increases endothelial oxidative stress in female persons. Sci Rep 2023; 13:15360. [PMID: 37717072 PMCID: PMC10505226 DOI: 10.1038/s41598-023-42758-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 09/14/2023] [Indexed: 09/18/2023] Open
Abstract
Sleep restriction is associated with increased cardiovascular risk, which is more pronounced in female than male persons. We reported recently first causal evidence that mild, prolonged sleep restriction mimicking "real-life" conditions impairs endothelial function, a key step in the development and progression of cardiovascular disease, in healthy female persons. However, the underlying mechanisms are unclear. In model organisms, sleep restriction increases oxidative stress and upregulates antioxidant response via induction of the antioxidant regulator nuclear factor (erythroid-derived 2)-like 2 (Nrf2). Here, we assessed directly endothelial cell oxidative stress and antioxidant responses in healthy female persons (n = 35) after 6 weeks of mild sleep restriction (1.5 h less than habitual sleep) using randomized crossover design. Sleep restriction markedly increased endothelial oxidative stress without upregulating antioxidant response. Using RNA-seq and a predicted protein-protein interaction database, we identified reduced expression of endothelial Defective in Cullin Neddylation-1 Domain Containing 3 (DCUN1D3), a protein that licenses Nrf2 antioxidant responses, as a mediator of impaired endothelial antioxidant response in sleep restriction. Thus, sleep restriction impairs clearance of endothelial oxidative stress that over time increases cardiovascular risk.Trial Registration: NCT02835261 .
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Affiliation(s)
- Riddhi Shah
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Vikash Kumar Shah
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Memet Emin
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Su Gao
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Rosemary V Sampogna
- Division of Nephrology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Brooke Aggarwal
- Division of Cardiology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Audrey Chang
- NewYork-Presbyterian Morgan Stanley Children's Hospital, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Marie-Pierre St-Onge
- Division of General Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Vikas Malik
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
- Columbia Center for Human Development and Columbia Stem Cell Initiative, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Jianlong Wang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
- Columbia Center for Human Development and Columbia Stem Cell Initiative, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Ying Wei
- Division of Biostatistics, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Sanja Jelic
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA.
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Yoshida E, Hayashida H. Influence of Practice Periodization and Sleep Duration on Oxidative Stress in High School Judo Athletes. Sports (Basel) 2023; 11:163. [PMID: 37755840 PMCID: PMC10536924 DOI: 10.3390/sports11090163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/24/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023] Open
Abstract
Numerous research studies have investigated the relationship between exercise, oxidative stress level, and condition in athletes who engage in intense training on a daily basis. However, it is known that oxidative stress is affected by exercise, sleep, and the psychological state, but there are only a few studies that have comprehensively examined oxidative stress based on the actual practice periods and living conditions of athletes. Therefore, our study aimed to explore the influence of three distinct training periods (short training period, intensive training period, and pre-competition periods) as well as life situations (sleep and number of steps) on oxidative stress levels (diacron reactive oxygen metabolites: d-ROMs) in high school judo athletes. The results showed that, among the three periods, the level of oxidative stress increased the most during the pre-competition period, and the value was higher than during the training period, when the intensity of training was highest. The levels of the d-ROMs values during the pre-competition period were negatively correlated with the amount of sleep on the previous day. The findings suggest that, besides the exercise intensity, factors such as sleep duration and other life situations should be regarded as critical considerations for high school judo athletes.
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Affiliation(s)
| | - Harumi Hayashida
- Graduate School of Sport Sciences, Toin University of Yokohama, 1614 Kuroganecho, Aoba Ward, Yokohama 225-0025, Japan;
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Kokošová V, Filip P, Kec D, Baláž M. Bidirectional Association Between Sleep and Brain Atrophy in Aging. Front Aging Neurosci 2021; 13:726662. [PMID: 34955805 PMCID: PMC8693777 DOI: 10.3389/fnagi.2021.726662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 10/29/2021] [Indexed: 11/23/2022] Open
Abstract
Human brain aging is characterized by the gradual deterioration of its function and structure, affected by the interplay of a multitude of causal factors. The sleep, a periodically repeating state of reversible unconsciousness characterized by distinct electrical brain activity, is crucial for maintaining brain homeostasis. Indeed, insufficient sleep was associated with accelerated brain atrophy and impaired brain functional connectivity. Concurrently, alteration of sleep-related transient electrical events in senescence was correlated with structural and functional deterioration of brain regions responsible for their generation, implying the interconnectedness of sleep and brain structure. This review discusses currently available data on the link between human brain aging and sleep derived from various neuroimaging and neurophysiological methods. We advocate the notion of a mutual relationship between the sleep structure and age-related alterations of functional and structural brain integrity, pointing out the position of high-quality sleep as a potent preventive factor of early brain aging and neurodegeneration. However, further studies are needed to reveal the causality of the relationship between sleep and brain aging.
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Affiliation(s)
- Viktória Kokošová
- Department of Neurology, Faculty of Medicine, University Hospital Brno and Masaryk University, Brno, Czechia
| | - Pavel Filip
- Department of Neurology, First Faculty of Medicine, General University Hospital Prague and Charles University, Prague, Czechia.,Center for Magnetic Resonance Research (CMRR), University of Minnesota, Minneapolis, MN, United States
| | - David Kec
- Department of Neurology, Faculty of Medicine, University Hospital Brno and Masaryk University, Brno, Czechia
| | - Marek Baláž
- First Department of Neurology, Faculty of Medicine, University Hospital of St. Anne and Masaryk University, Brno, Czechia
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Moustafa A. Chronic Exposure to Continuous Brightness or Darkness Modulates Immune Responses and Ameliorates the Antioxidant Enzyme System in Male Rats. Front Vet Sci 2021; 8:621188. [PMID: 33937367 PMCID: PMC8081841 DOI: 10.3389/fvets.2021.621188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 03/22/2021] [Indexed: 01/02/2023] Open
Abstract
Circadian rhythms are considered vital regulators of immune functions. This study aims to elucidate the effects of chronic circadian disruption on immune functions, clock genes expression, and antioxidant enzymes levels in lymphoid tissues. Adult male Sprague-Dawley rats were subjected to a normal light/dark cycle or either continuous light (LL) or continuous dark (DD) for 8 weeks. The results demonstrated (1) significant decreases in the circulating levels of interleukin 1β, interleukin 6 and tumor necrosis factor alpha (TNF-α) and significant increases in the levels of interleukin 10, interleukin 12, C-reactive protein (CRP) and corticosterone in both LL and DD groups; (2) upregulation in mRNA expression of core clock genes Cry1, Cry2, Per1, Per2, and Per3 in the spleen of the DD group and downregulation in Cry1 and Cry2 genes in the LL group; (3) elevation of total antioxidant capacity (TAC), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), nitric oxide (NO) and the lipid peroxidation marker malondialdehyde (MDA) in the spleen, lymph node and bone marrow of both the LL and DD groups and decreases in the levels of the same markers in the thymus of the LL group; (4) decreased numbers of CD4+ and CD8+ cells in lymphoid tissues of both the LL and the DD groups; (5) reduced platelets count and suppressed immunoglobulin (IgM, IgE) in the LL and DD groups with marked erythropenia and leukocytosis in the DD group. Taken together, circadian misalignment leads to hematological disruptions, dysregulation of clock genes, and inflammatory mediators, which further enhances the antioxidant enzyme system that is crucial for an organism's adaptation to stresses.
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Affiliation(s)
- Amira Moustafa
- Department of Physiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
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Ann Abraham D, Narasimhan U, Christy S, Muhasaparur Ganesan R. Effect of L-Carnosine as adjunctive therapy in the management of children with autism spectrum disorder: a randomized controlled study. Amino Acids 2020; 52:1521-1528. [PMID: 33170378 DOI: 10.1007/s00726-020-02909-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 10/30/2020] [Indexed: 12/12/2022]
Abstract
L-Carnosine is an amino acid that acts as an anti-oxidant, anti-toxic and neuroprotective agent. There is a paucity of data about the effectiveness of L-Carnosine in the management of autism spectrum disorder (ASD) in children. This study aimed at investigating the effectiveness of L-Carnosine as adjunctive therapy in the management of ASD. This was a randomized controlled trial. Children aged 3-6 years with a diagnosis of mild to moderate ASD were assigned to standard care arm (occupational and speech therapy) and intervention care arm (L-Carnosine, 10-15 mg/kg in 2 divided doses) plus standard care treatment. The children were assessed at the baseline and the end of 2 months for the scores of Childhood Autism Rating Scale, Second Edition-Standard Version (CARS2-ST), Autism Treatment Evaluation Checklist (ATEC), BEARS sleep screening tool and 6-item Gastrointestinal Severity Index (6-GSI). Of the sixty-seven children enrolled, sixty-three children had completed the study. No statistically significant difference (p > 0.05) was observed for any of the outcome measures assessed. Supplementation of L-Carnosine did not improve the total score of CARS2-ST, ATEC, BEARS sleep screening tool and 6-GSI scores of children with ASD. Further investigations are needed with more objective assessments to critically validate the effectiveness of L-Carnosine on ASD children for more decisive results.
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Affiliation(s)
- Debi Ann Abraham
- Department of Pharmacy Practice, Sri Ramachandra Faculty of Pharmacy, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, Tamil Nadu, 600 116, India
| | - Udayakumar Narasimhan
- Department of Paediatric Medicine, Sri Ramachandra Medical College and Research Institute, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Senta Christy
- Karthikeyan Child Development Unit, Sri Ramachandra Medical Centre, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Rajanandh Muhasaparur Ganesan
- Department of Pharmacy Practice, Sri Ramachandra Faculty of Pharmacy, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, Tamil Nadu, 600 116, India.
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Parkinson's Disease-Induced Zebrafish Models: Focussing on Oxidative Stress Implications and Sleep Processes. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1370837. [PMID: 32908622 PMCID: PMC7450359 DOI: 10.1155/2020/1370837] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/07/2020] [Accepted: 07/23/2020] [Indexed: 12/11/2022]
Abstract
The complex yet not fully understood pathophysiology of Parkinson's disease includes an important molecular component consisting of oxidative status changes, thus leading to oxidative stress occurrence. While no particular evidence has been reported that describes the relationship between oxidative stress and the molecular mechanisms behind Parkinson's disease development, animal model studies has shown that oxidative stress induction could modulate Parkinson's disease symptomatology. Despite the inability to perfectly replicate human disease in animals and despite that Parkinson's disease has not been reported in any animal species, animal modeling is one of the most important tools in understanding the complex mechanisms of human disorders. In this way, this study is aimed at detailing this particular relationship and describing the molecular mechanisms underlying Parkinson's disease in animal models, focusing on the potential advantages and disadvantages of zebrafish in this context. The information relevant to this topic was gathered using major scientific database research (PubMed, Google Scholar, Web of Science, and Scopus) based on related keywords and inclusion criteria. Thus, it was observed that oxidative stress possesses an important role in Parkinson's disease as shown by numerous animal model studies, many of which are based on rodent experimental models. However, an emerging impact of the zebrafish model was observed in the research of Parkinson's disease pathological mechanisms with regard to disease development factors and the cause-effect relationship between oxidative stress and comorbidities (such as depression, hyposmia, fatigue, sleep disturbances, and cognitive deficits) and also with regard to the pharmacological potential of antioxidant molecules in Parkinson's disease treatment.
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Higher Number of Night Shifts Associates with Good Perception of Work Capacity and Optimal Lung Function but Correlates with Increased Oxidative Damage and Telomere Attrition. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8327629. [PMID: 31111068 PMCID: PMC6487156 DOI: 10.1155/2019/8327629] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/16/2019] [Accepted: 04/01/2019] [Indexed: 12/11/2022]
Abstract
Sleep deprivation and the consequent circadian clock disruption has become an emergent health question being associated with premature aging and earlier chronic diseases onset. Night-shift work leads to circadian clock misalignment, which is linked to several age-related diseases. However, mechanisms of this association are not well understood. Aim of this study is to explore in night-shift workers early indicators of oxidative stress response and biological aging [oxidized/methylated DNA bases and leukocytes telomere length (LTL)] and late indicators of functional aging [lung function measurements (FEV1 and FVC)] in relation to personal evaluation of work capacity, measured by work ability index (WAI). One hundred fifty-five hospital workers were studied within the framework of a cross-sectional study. We collected physiological, pathological, and occupational history including pack-years, alcohol consumption, physical activity, and night shifts, together with blood and urine samples. Relationships were appraised by univariate and multivariate ordered-logistic regression models. We found that workers with good and excellent WAI present higher FEV1 (p< 0.01) and number of night-work shifts (p<0.05), but they reveal higher urinary levels of 8-oxoGua (p<0.01) and shorter LTL (p<0.05). We confirmed that higher work ability was prevalent among chronological younger workers (p<0.05), who have also a significant reduced number of diseases, particularly chronic (p<0.01) and musculoskeletal diseases (p<0.01). The new findings which stem from our work are that subjects with the highest work ability perception may have more demanding and burdensome tasks; they in fact present the highest number of night-shift work and produce unbalanced oxidative stress response that might induce premature aging.
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10
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Circadian disruption and increase of oxidative stress in male and female volunteers after bright light exposure before bed time. Mol Cell Toxicol 2019. [DOI: 10.1007/s13273-019-0025-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Liu H, Chen A. Roles of sleep deprivation in cardiovascular dysfunctions. Life Sci 2019; 219:231-237. [PMID: 30630005 DOI: 10.1016/j.lfs.2019.01.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/14/2018] [Accepted: 01/06/2019] [Indexed: 01/09/2023]
Abstract
It is widely recognized that inadequate sleep is associated with multiple acute and chronic diseases and results in increased mortality and morbidity for cardiovascular diseases. In recent years, there has been increasing interest in sleep related investigations. Emerging evidence indicates that sleep deprivation changes the biological phenotypes of DNA, RNA and protein levels, but the underlying mechanisms are not clear. We summarized the current research on the detrimental roles of sleep deprivation on the heart and elucidated the underlying mechanisms of sleep deficiency to improve our understanding of sleep deprivation and the emerging strategies to target this process for therapeutic benefit.
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Affiliation(s)
- Haiqiong Liu
- Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, NO. 253, Gongye Avenue, 510282 Guangzhou, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, NO. 253, Gongye Avenue, 510282 Guangzhou, China; Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China; Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, NO. 253, Gongye Avenue, 510282 Guangzhou, China
| | - Aihua Chen
- Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, NO. 253, Gongye Avenue, 510282 Guangzhou, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, NO. 253, Gongye Avenue, 510282 Guangzhou, China; Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China; Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, NO. 253, Gongye Avenue, 510282 Guangzhou, China.
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Rodrigues NR, Macedo GE, Martins IK, Gomes KK, de Carvalho NR, Posser T, Franco JL. Short-term sleep deprivation with exposure to nocturnal light alters mitochondrial bioenergetics in Drosophila. Free Radic Biol Med 2018; 120:395-406. [PMID: 29655867 DOI: 10.1016/j.freeradbiomed.2018.04.549] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 03/26/2018] [Accepted: 04/11/2018] [Indexed: 02/07/2023]
Abstract
Many studies have shown the effects of sleep deprivation in several aspects of health and disease. However, little is known about how mitochondrial bioenergetics function is affected under this condition. To clarify this, we developed a simple model of short-term sleep deprivation, in which fruit-flies were submitted to a nocturnal light condition and then mitochondrial parameters were assessed by high resolution respirometry (HRR). Exposure of flies to constant light was able to alter sleep patterns, causing locomotor deficits, increasing ROS production and lipid peroxidation, affecting mitochondrial activity, antioxidant defense enzymes and caspase activity. HRR analysis showed that sleep deprivation affected mitochondrial bioenergetics capacity, decreasing respiration at oxidative phosphorylation (OXPHOS) and electron transport system (ETS). In addition, the expression of genes involved in the response to oxidative stress and apoptosis were increased. Thus, our results suggest a connection between sleep deprivation and oxidative stress, pointing to mitochondria as a possible target of this relationship.
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Affiliation(s)
- Nathane Rosa Rodrigues
- Oxidative Stress and Cell Signaling Research Group, Centro Interdisciplinar de Pesquisas em Biotecnologia - CIPBIOTEC, Universidade Federal do Pampa, Campus São Gabriel, RS, Brazil; Departamento de Bioquímica e Biologia Molecular, CCNE, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Giulianna Echeverria Macedo
- Oxidative Stress and Cell Signaling Research Group, Centro Interdisciplinar de Pesquisas em Biotecnologia - CIPBIOTEC, Universidade Federal do Pampa, Campus São Gabriel, RS, Brazil
| | - Illana Kemmerich Martins
- Oxidative Stress and Cell Signaling Research Group, Centro Interdisciplinar de Pesquisas em Biotecnologia - CIPBIOTEC, Universidade Federal do Pampa, Campus São Gabriel, RS, Brazil
| | - Karen Kich Gomes
- Oxidative Stress and Cell Signaling Research Group, Centro Interdisciplinar de Pesquisas em Biotecnologia - CIPBIOTEC, Universidade Federal do Pampa, Campus São Gabriel, RS, Brazil
| | - Nélson Rodrigues de Carvalho
- Oxidative Stress and Cell Signaling Research Group, Centro Interdisciplinar de Pesquisas em Biotecnologia - CIPBIOTEC, Universidade Federal do Pampa, Campus São Gabriel, RS, Brazil
| | - Thaís Posser
- Oxidative Stress and Cell Signaling Research Group, Centro Interdisciplinar de Pesquisas em Biotecnologia - CIPBIOTEC, Universidade Federal do Pampa, Campus São Gabriel, RS, Brazil
| | - Jeferson Luis Franco
- Oxidative Stress and Cell Signaling Research Group, Centro Interdisciplinar de Pesquisas em Biotecnologia - CIPBIOTEC, Universidade Federal do Pampa, Campus São Gabriel, RS, Brazil; Departamento de Bioquímica e Biologia Molecular, CCNE, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil.
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Mehrazad-Saber Z, Kheirouri S, Noorazar SG. Effects of l-Carnosine Supplementation on Sleep Disorders and Disease Severity in Autistic Children: A Randomized, Controlled Clinical Trial. Basic Clin Pharmacol Toxicol 2018; 123:72-77. [PMID: 29430839 DOI: 10.1111/bcpt.12979] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 01/30/2018] [Indexed: 11/27/2022]
Abstract
Sleep disorders are frequently reported in autistic patients. Evidences suggest that increased oxidative stress and reduced antioxidants may play a major role in the pathogenesis of these disorders. Carnosine acts as an antioxidant, antitoxic and neuroprotective agent. The aim of this trial study was to examine the effects of carnosine supplementation on the sleep disorders and severity of autism core symptoms in autistic patients. In this double-blind, randomized clinical trial, 43 autistic patients (31 boys and 12 girls; aged 4 to 16 years) were divided into two groups of carnosine and control that received 500 mg of carnosine and 500 mg of placebo per day for 2 months, respectively. Sleep disorders were measured using Children's Sleep Habits Questionnaires. Gilliam Autism Rating Scale 2 was used to assess the effects of carnosine supplementation on the autism severity. Carnosine supplementation did not change anthropometric indices (p > 0.05) and showed no effect on autism severity (p > 0.05), whereas it significantly reduced sleep duration (p = 0.04), parasomnias (p = 0.02) and total sleep disorders score by 7.59% (p = 0.006) when compared with the control group. The results suggest that carnosine supplementation could be effective in improving sleep disturbances, in particular sleep duration and parasomnias subscales.
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Affiliation(s)
| | - Sorayya Kheirouri
- Department of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyyed-Gholamreza Noorazar
- Research Center of Psychiatry and Behavioral Sciences (RCPBS), Tabriz University of Medical Sciences, Tabriz, Iran
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Moreno-Villanueva M, von Scheven G, Feiveson A, Bürkle A, Wu H, Goel N. The degree of radiation-induced DNA strand breaks is altered by acute sleep deprivation and psychological stress and is associated with cognitive performance in humans. Sleep 2018; 41:4954606. [DOI: 10.1093/sleep/zsy067] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Indexed: 11/14/2022] Open
Affiliation(s)
- Maria Moreno-Villanueva
- National Aeronautics and Space Administration, Johnson Space Center, Houston, TX
- Department of Biology, Molecular Toxicology Group, University of Konstanz, Konstanz, Germany
| | - Gudrun von Scheven
- Department of Biology, Molecular Toxicology Group, University of Konstanz, Konstanz, Germany
| | - Alan Feiveson
- National Aeronautics and Space Administration, Johnson Space Center, Houston, TX
| | - Alexander Bürkle
- Department of Biology, Molecular Toxicology Group, University of Konstanz, Konstanz, Germany
| | - Honglu Wu
- National Aeronautics and Space Administration, Johnson Space Center, Houston, TX
| | - Namni Goel
- Department of Psychiatry, Division of Sleep and Chronobiology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA
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15
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Ito K, Kawasaki H, Suzuki T, Takahara T, Ishida N. Effects of Kamikihito and Unkei-to on Sleep Behavior of Wild Type and Parkinson Model in Drosophila. Front Psychiatry 2017; 8:132. [PMID: 28824465 PMCID: PMC5534454 DOI: 10.3389/fpsyt.2017.00132] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 07/10/2017] [Indexed: 01/10/2023] Open
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease, and it is associated with sleep behavior disorders. In Drosophila melanogaster disease model, human α-synuclein A30P overexpressing flies (A30P PD model) have been shown for levy body aggregation and movement disorders. We measured sleep rhythms in the A30P PD model flies using the Drosophila Activity Monitoring system and found that they develop sleep defects at 20 days after eclosion. Furthermore, the total amount of sleep is significantly reduced in middle-aged PD model flies and the reduction has been attributed to nighttime sleep. The number and length of sleep bouts also decreased in middle-aged A30P PD model flies. Feeding of the oriental traditional herbal medicines (Kampo), Kamikihito and Unkei-to significantly ameliorate the level of sleep defects in A30P PD model flies. The Kamikihito and Unkei-to recovered 60-min sleep bouts number in the A30P PD model flies to the level of young (5 days after eclosion) flies. Kamikihito recovered sleep both in wild-type and PD model flies. Unkei-to ameliorates not only sleep but also motor function in PD model flies. The data suggest that Kamikihito and Unkei-to might be useful for the sleep defects in human PD patients as well as healthy human.
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Affiliation(s)
- Kumpei Ito
- Institute of Chronobiology, Foundation for Advancement of International Science, Tsukuba, Japan.,Graduate School of Life and Environmental Sciences, Tsukuba University, Tsukuba, Japan.,Ishida Group of Clock Gene, Biomedical Research Institute, National Institute of Advanced Science and Technology (AIST) 6 Central, Tsukuba, Japan
| | - Haruhisa Kawasaki
- Institute of Chronobiology, Foundation for Advancement of International Science, Tsukuba, Japan.,Ishida Group of Clock Gene, Biomedical Research Institute, National Institute of Advanced Science and Technology (AIST) 6 Central, Tsukuba, Japan
| | - Takahiro Suzuki
- Institute of Chronobiology, Foundation for Advancement of International Science, Tsukuba, Japan.,Ishida Group of Clock Gene, Biomedical Research Institute, National Institute of Advanced Science and Technology (AIST) 6 Central, Tsukuba, Japan
| | - Tsubasa Takahara
- Graduate School of Life and Environmental Sciences, Tsukuba University, Tsukuba, Japan.,Ishida Group of Clock Gene, Biomedical Research Institute, National Institute of Advanced Science and Technology (AIST) 6 Central, Tsukuba, Japan
| | - Norio Ishida
- Institute of Chronobiology, Foundation for Advancement of International Science, Tsukuba, Japan.,Graduate School of Life and Environmental Sciences, Tsukuba University, Tsukuba, Japan.,Ishida Group of Clock Gene, Biomedical Research Institute, National Institute of Advanced Science and Technology (AIST) 6 Central, Tsukuba, Japan
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16
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Bhatti P, Mirick DK, Randolph TW, Gong J, Buchanan DT, Zhang J(J, Davis S. Oxidative DNA damage during sleep periods among nightshift workers. Occup Environ Med 2016; 73:537-44. [DOI: 10.1136/oemed-2016-103629] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 05/25/2016] [Indexed: 01/15/2023]
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17
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Lungato L, Nogueira-Pedro A, Carvalho Dias C, Paredes-Gamero EJ, Tufik S, D'Almeida V. Effects of Sleep Deprivation on Mice Bone Marrow and Spleen B Lymphopoiesis. J Cell Physiol 2015; 231:1313-20. [DOI: 10.1002/jcp.25231] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Accepted: 10/28/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Lisandro Lungato
- Department of Psychobiology; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
| | - Amanda Nogueira-Pedro
- Department of Biophysics; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
| | - Carolina Carvalho Dias
- Department de Biochemistry; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
| | - Edgar Julian Paredes-Gamero
- Department de Biochemistry; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
- Centro Interdisciplinar de Investigação Bioquı́mica; Universidade de Mogi das Cruzes, Av. Dr Cândido Xavier de Almeida Souza; Mogi das Cruzes SP Brazil
| | - Sergio Tufik
- Department of Psychobiology; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
| | - Vânia D'Almeida
- Department of Psychobiology; Universidade Federal de São Paulo, UNIFESP; São Paulo SP Brazil
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18
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Sleep Deficiency and Deprivation Leading to Cardiovascular Disease. Int J Hypertens 2015; 2015:615681. [PMID: 26495139 PMCID: PMC4606167 DOI: 10.1155/2015/615681] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 05/13/2015] [Accepted: 05/19/2015] [Indexed: 11/21/2022] Open
Abstract
Sleep plays a vital role in an individual's mental, emotional, and physiological well-being. Not only does sleep deficiency lead to neurological and psychological disorders, but also the literature has explored the adverse effects of sleep deficiency on the cardiovascular system. Decreased quantity and quality of sleep have been linked to cardiovascular disease (CVD) risk factors, such as hypertension, obesity, diabetes, and dyslipidemia. We explore the literature correlating primary sleep deficiency and deprivation as a cause for cardiovascular disease and cite endothelial dysfunction as a common underlying mechanism.
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19
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Lungato L, Gazarini ML, Paredes-Gamero EJ, Tufik S, D'Almeida V. Paradoxical sleep deprivation impairs mouse survival after infection with malaria parasites. Malar J 2015; 14:183. [PMID: 25927919 PMCID: PMC4416287 DOI: 10.1186/s12936-015-0690-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 04/15/2015] [Indexed: 12/22/2022] Open
Abstract
Background Parasitic diseases like malaria are a major public health problem in many countries and disrupted sleep patterns are an increasingly common part of modern life. The aim of this study was to assess the effects of paradoxical sleep deprivation (PSD) and sleep rebound (RB) on malarial parasite infection in mice. Methods After PSD, one group was immediately infected with parasites (PSD). The two other PSD rebound groups were allowed to sleep normally for either 24 h (24 h RB) or 48 h (48 h RB). After the recovery periods, mice were inoculated with parasites. Results The PSD group was the most affected by parasites presenting the higher death rate (0.02), higher number of infected cells (p < 0.01), and decrease in body weight (p < 0.04) compared to control and 48 h RB groups. The 24 h RB group was also different from control group in survival (p < 0.03), number of infected cells (p < 0.05) and body weight (p < 0.04). After 48 hours of sleep rebound animals were allowed to restore their response to parasitic infection similar to normal sleep animals. Conclusions These results suggest that PSD is damaging to the immune system and leads to an increased infection severity of malaria parasites; only 48 hours of recovery sleep was sufficient to return the mice infection response to baseline values. Electronic supplementary material The online version of this article (doi:10.1186/s12936-015-0690-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lisandro Lungato
- Department of Psychobiology, Universidade Federal de São Paulo, Rua Napoleão de Barros, 925, 3rd floor, São Paulo, SP, 04024-002, Brazil.
| | - Marcos L Gazarini
- Department of Biosciences, Universidade Federal de São Paulo, Santos, SP, Brazil.
| | | | - Sergio Tufik
- Department of Psychobiology, Universidade Federal de São Paulo, Rua Napoleão de Barros, 925, 3rd floor, São Paulo, SP, 04024-002, Brazil.
| | - Vânia D'Almeida
- Department of Psychobiology, Universidade Federal de São Paulo, Rua Napoleão de Barros, 925, 3rd floor, São Paulo, SP, 04024-002, Brazil.
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20
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Sleep deprivation and oxidative stress in animal models: a systematic review. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:234952. [PMID: 25945148 PMCID: PMC4402503 DOI: 10.1155/2015/234952] [Citation(s) in RCA: 171] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 03/22/2015] [Accepted: 03/22/2015] [Indexed: 12/15/2022]
Abstract
Because the function and mechanisms of sleep are partially clear, here we applied a meta-analysis to address the issue whether sleep function includes antioxidative properties in mice and rats. Given the expansion of the knowledge in the sleep field, it is indeed ambitious to describe all mammals, or other animals, in which sleep shows an antioxidant function. However, in this paper we reviewed the current understanding from basic studies in two species to drive the hypothesis that sleep is a dynamic-resting state with antioxidative properties. We performed a systematic review of articles cited in Medline, Scopus, and Web of Science until March 2015 using the following search terms: Sleep or sleep deprivation and oxidative stress, lipid peroxidation, glutathione, nitric oxide, catalase or superoxide dismutase. We found a total of 266 studies. After inclusion and exclusion criteria, 44 articles were included, which are presented and discussed in this study. The complex relationship between sleep duration and oxidative stress is discussed. Further studies should consider molecular and genetic approaches to determine whether disrupted sleep promotes oxidative stress.
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21
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Everson CA, Henchen CJ, Szabo A, Hogg N. Cell injury and repair resulting from sleep loss and sleep recovery in laboratory rats. Sleep 2014; 37:1929-40. [PMID: 25325492 DOI: 10.5665/sleep.4244] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 06/20/2014] [Indexed: 12/29/2022] Open
Abstract
STUDY OBJECTIVES Increased cell injury would provide the type of change in constitution that would underlie sleep disruption as a risk factor for multiple diseases. The current study was undertaken to investigate cell injury and altered cell fate as consequences of sleep deprivation, which were predicted from systemic clues. DESIGN Partial (35% sleep reduction) and total sleep deprivation were produced in rats for 10 days, which was tolerated and without overtly deteriorated health. Recovery rats were similarly sleep deprived for 10 days, then allowed undisturbed sleep for 2 days. The plasma, liver, lung, intestine, heart, and spleen were analyzed and compared to control values for damage to DNA, proteins, and lipids; apoptotic cell signaling and death; cell proliferation; and concentrations of glutathione peroxidase and catalase. MEASUREMENTS AND RESULTS Oxidative DNA damage in totally sleep deprived rats was 139% of control values, with organ-specific effects in the liver (247%), lung (166%), and small intestine (145%). Overall and organ-specific DNA damage was also increased in partially sleep deprived rats. In the intestinal epithelium, total sleep deprivation resulted in 5.3-fold increases in dying cells and 1.5-fold increases in proliferating cells, compared with control. Recovery sleep restored the balance between DNA damage and repair, and resulted in normal or below-normal metabolic burdens and oxidative damage. CONCLUSIONS These findings provide physical evidence that sleep loss causes cell damage, and in a manner expected to predispose to replication errors and metabolic abnormalities; thereby providing linkage between sleep loss and disease risk observed in epidemiological findings. Properties of recovery sleep include biochemical and molecular events that restore balance and decrease cell injury.
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Affiliation(s)
- Carol A Everson
- Department of Neurology, The Medical College of Wisconsin, Milwaukee, WI
| | | | - Aniko Szabo
- Department of Population Health, The Medical College of Wisconsin, Milwaukee, WI
| | - Neil Hogg
- Department of Biophysics, The Medical College of Wisconsin, Milwaukee, WI
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22
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Alterations in circadian rhythms are associated with increased lipid peroxidation in females with bipolar disorder. Int J Neuropsychopharmacol 2014; 17:715-22. [PMID: 24438530 DOI: 10.1017/s1461145713001740] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Disturbances in both circadian rhythms and oxidative stress systems have been implicated in the pathophysiology of bipolar disorder (BD), yet no studies have investigated the relationship between these systems in BD. We studied the impact of circadian rhythm disruption on lipid damage in 52 depressed or euthymic BD females, while controlling for age, severity of depressive symptoms and number of psychotropic medications, compared to 30 healthy controls. Circadian rhythm disruption was determined by a self-report measure (Biological Rhythm Interview of Assessment in Neuropsychiatry; BRIAN), which measures behaviours such as sleep, eating patterns, social rhythms and general activity. Malondialdehyde (MDA) levels were measured as a proxy of lipid peroxidation. We also measured the activity of total and extracellular superoxide dismutase (SOD), catalase (CAT) and glutathione S-transferase (GST). Multiple linear regressions showed that circadian rhythm disturbance was independently associated with increased lipid peroxidation in females with BD (p < 0.05). We found decreased extracellular SOD (p < 0.05), but no differences in total SOD, CAT or GST activity between bipolar females and controls. Circadian rhythms were not associated with lipid peroxidation in healthy controls, where aging was the only significant predictor. These results suggest an interaction between the circadian system and redox metabolism, in that greater disruption in daily rhythms was associated with increased lipid peroxidation in BD only. Antioxidant enzymes have been shown to follow a circadian pattern of expression, and it is possible that disturbance of sleep and daily rhythms experienced in BD may result in decreased antioxidant defence and therefore increased lipid peroxidation. This study provides a basis for further investigation of the links between oxidative stress and circadian rhythms in the neurobiology of BD.
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23
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Picchioni D, Reith RM, Nadel JL, Smith CB. Sleep, plasticity and the pathophysiology of neurodevelopmental disorders: the potential roles of protein synthesis and other cellular processes. Brain Sci 2014; 4:150-201. [PMID: 24839550 PMCID: PMC4020186 DOI: 10.3390/brainsci4010150] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 02/26/2014] [Accepted: 03/07/2014] [Indexed: 12/28/2022] Open
Abstract
Sleep is important for neural plasticity, and plasticity underlies sleep-dependent memory consolidation. It is widely appreciated that protein synthesis plays an essential role in neural plasticity. Studies of sleep-dependent memory and sleep-dependent plasticity have begun to examine alterations in these functions in populations with neurological and psychiatric disorders. Such an approach acknowledges that disordered sleep may have functional consequences during wakefulness. Although neurodevelopmental disorders are not considered to be sleep disorders per se, recent data has revealed that sleep abnormalities are among the most prevalent and common symptoms and may contribute to the progression of these disorders. The main goal of this review is to highlight the role of disordered sleep in the pathology of neurodevelopmental disorders and to examine some potential mechanisms by which sleep-dependent plasticity may be altered. We will also briefly attempt to extend the same logic to the other end of the developmental spectrum and describe a potential role of disordered sleep in the pathology of neurodegenerative diseases. We conclude by discussing ongoing studies that might provide a more integrative approach to the study of sleep, plasticity, and neurodevelopmental disorders.
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Affiliation(s)
- Dante Picchioni
- Behavioral Biology Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA; E-Mail:
- Advanced MRI Section, National Institute of Neurological Disorders and Stroke, Bethesda, MD 20892, USA
- Section on Neuroadaptation and Protein Metabolism, National Institute of Mental Health, Bethesda, MD 20892, USA; E-Mails: (R.M.R.); (J.L.N.)
| | - R. Michelle Reith
- Section on Neuroadaptation and Protein Metabolism, National Institute of Mental Health, Bethesda, MD 20892, USA; E-Mails: (R.M.R.); (J.L.N.)
| | - Jeffrey L. Nadel
- Section on Neuroadaptation and Protein Metabolism, National Institute of Mental Health, Bethesda, MD 20892, USA; E-Mails: (R.M.R.); (J.L.N.)
| | - Carolyn B. Smith
- Section on Neuroadaptation and Protein Metabolism, National Institute of Mental Health, Bethesda, MD 20892, USA; E-Mails: (R.M.R.); (J.L.N.)
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