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Touitou Y, Cermakian N, Touitou C. The environment and the internal clocks: The study of their relationships from prehistoric to modern times. Chronobiol Int 2024; 41:859-887. [PMID: 38757600 DOI: 10.1080/07420528.2024.2353857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 05/03/2024] [Indexed: 05/18/2024]
Abstract
The origin of biological rhythms goes back to the very beginning of life. They are observed in the animal and plant world at all levels of organization, from cells to ecosystems. As early as the 18th century, plant scientists were the first to explain the relationship between flowering cycles and environmental cycles, emphasizing the importance of daily light-dark cycles and the seasons. Our temporal structure is controlled by external and internal rhythmic signals. Light is the main synchronizer of the circadian system, as daily exposure to light entrains our clock over 24 hours, the endogenous period of the circadian system being close to, but not exactly, 24 hours. In 1960, a seminal scientific meeting, the Cold Spring Harbor Symposium on Biological Rhythms, brought together all the biological rhythms scientists of the time, a number of whom are considered the founders of modern chronobiology. All aspects of biological rhythms were addressed, from the properties of circadian rhythms to their practical and ecological aspects. Birth of chronobiology dates from this period, with the definition of its vocabulary and specificities in metabolism, photoperiodism, animal physiology, etc. At around the same time, and right up to the present day, research has focused on melatonin, the circadian neurohormone of the pineal gland, with data on its pattern, metabolism, control by light and clinical applications. However, light has a double face, as it has positive effects as a circadian clock entraining agent, but also deleterious effects, as it can lead to chronodisruption when exposed chronically at night, which can increase the risk of cancer and other diseases. Finally, research over the past few decades has unraveled the anatomical location of circadian clocks and their cellular and molecular mechanisms. This recent research has in turn allowed us to explain how circadian rhythms control physiology and health.
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Affiliation(s)
- Yvan Touitou
- Unité de Chronobiologie, Fondation A. de Rothschild, Paris, France
| | - Nicolas Cermakian
- Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada
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Borisenkov MF, Dorogina OI, Popov SV, Smirnov VV, Pecherkina AA, Symaniuk EE. The Positive Association between Melatonin-Containing Food Consumption and Older Adult Life Satisfaction, Psychoemotional State, and Cognitive Function. Nutrients 2024; 16:1064. [PMID: 38613097 PMCID: PMC11013436 DOI: 10.3390/nu16071064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 03/30/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
The purpose of this study was to test the hypothesis that melatonin-containing food (FMT) consumption is associated with a better sleep schedule and cognitive and psychoemotional state in older adults. A cross-sectional study of 557 (79% females) older adults living in the community with a mean age of 68.9 ± 7.7, ranging from 50 to 90 years, was conducted. The study, conducted in May and September 2023 using a face-to-face interview, collected personal data and assessed FMT intake during the day (FMTday) and for dinner (FMTdinner), life satisfaction, positive and negative affect, depression severity, cognitive functions, and sleep characteristics. Multiple regression and logistic regression analysis, adjusted for co-factors, were used to assess the association between the studied indicators. Multiple regression analysis showed that older adults with higher FMT consumption are more satisfied with life (FMTdinner: β = 0.107; ∆R2 = 0.011; p = 0.020), have a lower level of depression (FMTday: β = -0.124; ∆R2 = 0.015; p = 0.003), and higher scores in positive affect (FMTday: β = 0.169; ∆R2 = 0.016; p = 0.007; FMTdinner: β = 0.136; ∆R2 = 0.019; p = 0.003). Logistic regression analysis showed that older adults with higher FMT consumption are less likely to have depression (FMTday: OR, 0.614; 95% CI, 0.436-0.864; p = 0.005; FMTdinner: OR, 0.671; 95% CI, 0.476-0.945; p = 0.023), and they perform better on logical thinking tests (FMTday: OR, 2.066; 95% CI, 1.131-2.204; p = 0.013; FMTdinner: OR, 1.887; 95% CI, 1.183-2.138; p = 0.033). A greater life satisfaction as well as a decrease in the cognitive impairment and psychoemotional state of older adults is associated with a higher consumption of melatonin-containing foods.
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Affiliation(s)
- Mikhail F. Borisenkov
- Department of Molecular Immunology and Biotechnology, Institute of Physiology of Federal Research Centre Komi Science Centre, Urals Branch of the Russian Academy of Sciences, 50 Pervomaiskaya Str., 167982 Syktyvkar, Russia; (S.V.P.); (V.V.S.)
| | - Olga I. Dorogina
- Ural Institute of Humanities, Ural Federal University, 51 Lenina Str., 620000 Yekaterinburg, Russia; (A.A.P.); (E.E.S.)
| | - Sergey V. Popov
- Department of Molecular Immunology and Biotechnology, Institute of Physiology of Federal Research Centre Komi Science Centre, Urals Branch of the Russian Academy of Sciences, 50 Pervomaiskaya Str., 167982 Syktyvkar, Russia; (S.V.P.); (V.V.S.)
| | - Vasily V. Smirnov
- Department of Molecular Immunology and Biotechnology, Institute of Physiology of Federal Research Centre Komi Science Centre, Urals Branch of the Russian Academy of Sciences, 50 Pervomaiskaya Str., 167982 Syktyvkar, Russia; (S.V.P.); (V.V.S.)
| | - Anna A. Pecherkina
- Ural Institute of Humanities, Ural Federal University, 51 Lenina Str., 620000 Yekaterinburg, Russia; (A.A.P.); (E.E.S.)
| | - Elvira E. Symaniuk
- Ural Institute of Humanities, Ural Federal University, 51 Lenina Str., 620000 Yekaterinburg, Russia; (A.A.P.); (E.E.S.)
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Dermanowski MM, Wichniak A, Hejduk A, Kuczyńska J, Dominiak M, Mierzejewski P. Behavioural Parameters of Circadian Rhythm Are Not Correlated with Dim Light Melatonin Onset: An Observational Study on Healthy Volunteers. J Clin Med 2023; 12:7757. [PMID: 38137826 PMCID: PMC10743549 DOI: 10.3390/jcm12247757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Dim light melatonin onset (DLMO) is considered the most reliable marker of the circadian rhythm phase in humans. DLMO may moderately correlate with sleep onset and sleep offset time. There are no sufficient data about the correlations between DLMO and clinical scales assessing sleep quality and daytime symptoms of poor night sleep. The aim of the study was to determine the association between DLMO and basic sleep parameters from actigraphy and sleep diaries, as well as the association between DLMO and the following insomnia clinical scales: the Athens Insomnia Scale (AIS), Insomnia Severity Index (ISI), Epworth Sleepiness Scale (ESS), and chronotype questionnaires: Morningness-Eveningness Questionnaire (MEQ) and Composite Scale of Morningness (CSM). Participants of the study were healthy volunteers. Sleep parameters were measured by sleep diaries and actigraphy, and the following clinical scales: the AIS, ISI, and ESS, and chronotype questionnaires: MEQ and CSM. DLMO was calculated based on plasma melatonin concentration. The blood samples were collected hourly at five time points between 20:00 and 00:00 during the session in dim red light (<50 lux). Melatonin concertation was determined by LC-MS/MS. Twenty-one volunteers participated in the study. DLMO was calculated in 12 participants. There was a significant correlation between DLMO and ISI (r = 0.60, p = 0.038) and ESS (r = 0.61, p = 0.034). The correlation coefficient between the DLMO and the AIS was also high, however insignificant (r = 0.57, p = 0.054). There were no significant correlations between DLMO and chronotype scales MEQ and CSM. DLMO did not correlate with sleep onset and sleep offset; however, DLMO correlated with the Sleep Fragmentation Index (SFI) (r = 0.67, p = 0.017). DLMO is associated with poorer sleep maintenance, a stronger feeling of insomnia, and sleepiness during the day. Simultaneously, chronotype pattern and circadian rhythm parameters do not correlate with DLMO. Biological circadian rhythm does not reflect the real-life sleep-wake rhythm, indicating that the lifestyle is more often disconnected from the biological clock.
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Affiliation(s)
- Michał Mateusz Dermanowski
- Department of Pharmacology, Institute of Psychiatry and Neurology, Sobieskiego 9, 02-957 Warsaw, Poland; (M.M.D.); (J.K.); (M.D.)
| | - Adam Wichniak
- Third Department of Psychiatry, Institute of Psychiatry and Neurology, Sobieskiego 9, 02-957 Warsaw, Poland;
| | - Arkadiusz Hejduk
- Department of Research and Development, LEK-AM Pharmaceutical Company Ltd., Ostrzykowizna 14A, 05-170 Zakroczym, Poland;
| | - Julita Kuczyńska
- Department of Pharmacology, Institute of Psychiatry and Neurology, Sobieskiego 9, 02-957 Warsaw, Poland; (M.M.D.); (J.K.); (M.D.)
| | - Monika Dominiak
- Department of Pharmacology, Institute of Psychiatry and Neurology, Sobieskiego 9, 02-957 Warsaw, Poland; (M.M.D.); (J.K.); (M.D.)
| | - Paweł Mierzejewski
- Department of Pharmacology, Institute of Psychiatry and Neurology, Sobieskiego 9, 02-957 Warsaw, Poland; (M.M.D.); (J.K.); (M.D.)
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Feybesse C, Chokron S, Tordjman S. Melatonin in Neurodevelopmental Disorders: A Critical Literature Review. Antioxidants (Basel) 2023; 12:2017. [PMID: 38001870 PMCID: PMC10669594 DOI: 10.3390/antiox12112017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/29/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023] Open
Abstract
The article presents a review of the relationships between melatonin and neurodevelopmental disorders. First, the antioxidant properties of melatonin and its physiological effects are considered to understand better the role of melatonin in typical and atypical neurodevelopment. Then, several neurodevelopmental disorders occurring during infancy, such as autism spectrum disorder or neurogenetic disorders associated with autism (including Smith-Magenis syndrome, Angelman syndrome, Rett's syndrome, Tuberous sclerosis, or Williams-Beuren syndrome) and neurodevelopmental disorders occurring later in adulthood like bipolar disorder and schizophrenia, are discussed with regard to impaired melatonin production and circadian rhythms, in particular, sleep-wake rhythms. This article addresses the issue of overlapping symptoms that are commonly observed within these different mental conditions and debates the role of abnormal melatonin production and altered circadian rhythms in the pathophysiology and behavioral expression of these neurodevelopmental disorders.
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Affiliation(s)
- Cyrille Feybesse
- Pôle Hospitalo-Universitaire de Psychiatrie de l’Enfant et de l’Adolescent (PHUPEA), Centre Hospitalier Guillaume Regnier, 154 rue de Châtillon, 35000 Rennes, France
| | - Sylvie Chokron
- Integrative Neuroscience and Cognition Center (INCC), CNRS UMR 8002, Université Paris Cité, 45 rue des Saints-Pères, 75006 Paris, France;
| | - Sylvie Tordjman
- Pôle Hospitalo-Universitaire de Psychiatrie de l’Enfant et de l’Adolescent (PHUPEA), Centre Hospitalier Guillaume Regnier, 154 rue de Châtillon, 35000 Rennes, France
- Integrative Neuroscience and Cognition Center (INCC), CNRS UMR 8002, Université Paris Cité, 45 rue des Saints-Pères, 75006 Paris, France;
- Faculté de Médecine, Université de Rennes, 2 Avenue du Professeur Léon Bernard, 35000 Rennes, France
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Keihani A, Mayeli A, Ferrarelli F. Circadian Rhythm Changes in Healthy Aging and Mild Cognitive Impairment. Adv Biol (Weinh) 2023; 7:e2200237. [PMID: 36403250 PMCID: PMC10199146 DOI: 10.1002/adbi.202200237] [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: 08/29/2022] [Revised: 11/01/2022] [Indexed: 11/21/2022]
Abstract
Disruptions in circadian rhythms can occur in healthy aging; however, these changes are more severe and pervasive in individuals with age-related and neurodegenerative diseases, such as dementia. Circadian rhythm alterations are also present in preclinical stages of dementia, for example, in patients with mild cognitive impairments (MCI); thus, providing a unique window of opportunity for early intervention in neurodegenerative disorders. Nonetheless, there is a lack of studies examining the association between relevant changes in circadian rhythms and their relationship with cognitive dysfunctions in MCI individuals. In this review, circadian system alterations occurring in MCI patients are examined compared to healthy aging individuals while also considering their association with MCI neurocognitive alterations. The main findings are that abnormal circadian changes in rest-activity, core body temperature, melatonin, and cortisol rhythms appear in the MCI stage and that these circadian rhythm disruptions are associated with some of the neurocognitive deficits observed in MCI patients. In addition, preliminary evidence indicates that interventions aimed at restoring regular circadian rhythms may prevent or halt the progress of neurodegenerative diseases and mitigate their related cognitive impairments. Future longitudinal studies with repeated follow-up assessments are needed to establish the translational potential of these findings in clinical practice.
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Affiliation(s)
- Ahmadreza Keihani
- Department of Psychiatry, University of Pittsburgh, 3501 Forbes Ave, Pittsburgh, PA, 15213, USA
| | - Ahmad Mayeli
- Department of Psychiatry, University of Pittsburgh, 3501 Forbes Ave, Pittsburgh, PA, 15213, USA
| | - Fabio Ferrarelli
- Department of Psychiatry, University of Pittsburgh, 3501 Forbes Ave, Pittsburgh, PA, 15213, USA
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Zilli Vieira CL, Koutrakis P, Liu M, Gottlieb DJ, Garshick E. Intense solar activity reduces urinary 6-sulfatoxymelatonin in patients with COPD. Respir Res 2023; 24:91. [PMID: 36959654 PMCID: PMC10037776 DOI: 10.1186/s12931-023-02390-w] [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: 01/23/2023] [Accepted: 03/08/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND Little is known about the link between solar activity and variations in melatonin. In this study, we investigated if melatonin's major urinary metabolite, urinary 6-sulfatoxymelatonin (aMT6s), is lowest under periods of intense solar activity. METHODS We investigated associations between high-energy solar particle events [Coronal Mass Ejection (CME) mass, speed and energy] on creatinine-adjusted aMT6s (aMT6sr) concentrations in 140 patients with chronic obstructive pulmonary disease (COPD) using up to four seasonal urine samples (n = 440). Mixed effect models with a random intercept for each subject were used to estimate associations, including effect modification attributable to diabetes, obesity, and reduced pulmonary function. RESULTS Higher values of CME were associated with reduced aMT6sr concentrations, with stronger associations in patients with diabetes. An interquartile range (IQR) increase in natural log CMEspeed averaged through two days before urine collection was associated with a reduction of 9.3% aMT6sr (95%CI: - 17.1%, - 0.8%) in aMT6sr. There was a greater reduction in aMT6sr in patients with diabetes (- 24.5%; 95%CI: - 35.9%, - 11.6%). In patients without diabetes there was no meaningful association (- 2.2%; 95%CI: - 12%, 8.4%). There were similar associations with CMEenergy and CMEmass. There was no effect modification attributable to reduced pulmonary function or obesity. CONCLUSIONS This is the first study in patients with COPD to demonstrate strong detrimental impact of high-energy solar particle events on aMT6sr, with greater associations in patients with diabetes. Since melatonin is an anti-oxidant, it is possible that adverse effects of intense solar activity may be attributable to a reduction in circulating melatonin and that patients with both COPD and diabetes may be more susceptible.
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Affiliation(s)
- Carolina L. Zilli Vieira
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Landmark Center Room 420, Boston, MA 02115 USA
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Landmark Center Room 420, Boston, MA 02115 USA
| | - Man Liu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Landmark Center Room 420, Boston, MA 02115 USA
| | - Daniel J. Gottlieb
- Pulmonary, Allergy, Sleep and Critical Care Medicine Section, Veterans Affairs Boston Healthcare System, Boston, MA USA
- Harvard Medical School, Boston, MA USA
| | - Eric Garshick
- Pulmonary, Allergy, Sleep and Critical Care Medicine Section, Veterans Affairs Boston Healthcare System, Boston, MA USA
- Harvard Medical School, Boston, MA USA
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA USA
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Insomnia in primary care: a survey conducted on Italian patients older than 50 years—results from the “Sonno e Salute” study. Neurol Sci 2022; 43:6487-6494. [PMID: 35925456 PMCID: PMC9362688 DOI: 10.1007/s10072-022-06309-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 07/28/2022] [Indexed: 10/27/2022]
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Abstract
With aging, there are normative changes to sleep physiology and circadian rhythmicity that may predispose older adults to sleep deficiency, whereas many health-related and psychosocial/behavioral factors may precipitate sleep deficiency. In this article, we describe age-related changes to sleep and describe how the health-related and psychosocial/behavioral factors typical of aging may converge in older adults to increase the risk for sleep deficiency. Next, we review the consequences of sleep deficiency in older adults, focusing specifically on important age-related outcomes, including mortality, cognition, depression, and physical function. Finally, we review treatments for sleep deficiency, highlighting safe and effective nonpharmacologic interventions.
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Affiliation(s)
- Jane Alexandra Pappas
- San Juan Bautista School of Medicine, Salida 21 Carr. 172 Urb. Turabo Gardens, Caguas 00726, Puerto Rico
| | - Brienne Miner
- Section of Geriatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA.
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Marde VS, Atkare UA, Gawali SV, Tiwari PL, Badole SP, Wankhede NL, Taksande BG, Upaganlawar AB, Umekar MJ, Kale MB. Alzheimer's disease and sleep disorders: Insights into the possible disease connections and the potential therapeutic targets. Asian J Psychiatr 2022; 68:102961. [PMID: 34890930 DOI: 10.1016/j.ajp.2021.102961] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/04/2021] [Accepted: 11/29/2021] [Indexed: 12/18/2022]
Abstract
One of the comorbid conditions in an individual with Alzheimer's disease is a sleep disorder. Clinical features of sleep disorders involve various sleep disturbances such as Obstructive Sleep Apnea (OSAS), Excessive Daytime Sleepiness (EDS), Rapid Eye Movement (REM), Breathing Disorders, Periodic limb movements in sleep (PLMS), etc. The primary tools used for the identification of such disturbances are Polysomnography (PSG) and Wrist actigraphy. This review will highlight and explains the different approaches used in the treatment of sleep disorders. Non-pharmacological treatments include Peter Hauri rules, sleep education program, and light therapy which play a key role in the regulation of sleep-wake cycles. Pharmacological therapy described in this article may be useful in treating sleep destruction in patients with Alzheimer's disease. Along with the Non-pharmacological and pharmacological treatment, here we discuss five commonly recognized plant-based nutraceuticals with hypothesized impact on sleep disorders: caffeine, chamomile, cherries, L-tryptophan, and valerian by the proper emphasis on the known mechanism of their action.
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Affiliation(s)
- Vaibhav S Marde
- National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Utkarsha A Atkare
- Institute of Pharmaceutical Education and Research, Borgaon (Meghe), Wardha, India
| | - Shweta V Gawali
- University Department of Pharmaceutical Science, Nagpur, India
| | - Prerna L Tiwari
- Springer Nature Technology and Publishing Solutions (SNTPS), India
| | | | - Nitu L Wankhede
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee, 441002 Nagpur, Maharashtra, India
| | - Brijesh G Taksande
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee, 441002 Nagpur, Maharashtra, India
| | - Aman B Upaganlawar
- SNJB's Shriman Sureshdada Jain College of Pharmacy, Neminagar, Chandwad, Nashik 423101, India
| | - Milind J Umekar
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee, 441002 Nagpur, Maharashtra, India
| | - Mayur B Kale
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee, 441002 Nagpur, Maharashtra, India.
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Uludag İ, Demirtaş B, Şener U, Zorlu Y. Comparison of awake electroencephalography, electroencephalography after sleep deprivation, and melatonin-induced sleep electroencephalography sensitivity in the diagnosis of epilepsy in adults. NEUROL SCI NEUROPHYS 2022. [DOI: 10.4103/nsn.nsn_101_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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11
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Abstract
Two factors intrinsic to health are diet and sleep. These two behaviors may well influence one another. Indeed, that insufficient sleep adversely impacts dietary intakes is well documented. On the other hand, diet may influence sleep via melatonin and its biosynthesis from tryptophan. Experimental data exist indicating that provision of specific foods rich in tryptophan or melatonin can improve sleep quality. Whole diets rich in fruits, vegetables, legumes, and other sources of dietary tryptophan and melatonin have been shown to predict favorable sleep outcomes. Although clinical trials are needed to confirm a causal impact of dietary patterns on sleep and elucidate underlying mechanisms, available data illustrate a cyclical relation between these lifestyle factors. We recommend adopting a healthful diet to improve sleep, which may further promote sustained favorable dietary practices.
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Affiliation(s)
- Faris M Zuraikat
- Sleep Center of Excellence, Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA; , ,
- Institute of Human Nutrition, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA;
| | - Rebecca A Wood
- Institute of Human Nutrition, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA;
| | - Rocío Barragán
- Sleep Center of Excellence, Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA; , ,
- Department of Preventive Medicine and Public Health, School of Medicine, University of Valencia, 46010, Valencia, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Marie-Pierre St-Onge
- Sleep Center of Excellence, Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA; , ,
- Institute of Human Nutrition, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY 10032, USA;
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12
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Reflectometry and molecular dynamics study of the impact of cholesterol and melatonin on model lipid membranes. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2021; 50:1025-1035. [PMID: 34357445 DOI: 10.1007/s00249-021-01564-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 03/12/2021] [Accepted: 07/30/2021] [Indexed: 10/20/2022]
Abstract
The effect of melatonin and/or cholesterol on the structural properties of a model lipid bilayer prepared from 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) has been investigated both experimentally and via molecular dynamics (MD) simulations. Neutron reflectometry experiments performed with single supported membranes revealed changes in lipid bilayer thickness upon the introduction of additional components. While the presence of cholesterol led to an increase in membrane thickness, the opposite effect was observed in the case of melatonin. The results obtained are in a good agreement with MD simulations which provided further information on the organization of components within the systems examined, indicating a mechanism underlying the membranes' thickness changes due to cholesterol and melatonin that had been observed experimentally. Cholesterol and melatonin preferentially accumulate in different membrane regions, presumably affecting the conformation of lipid hydrophobic moieties differently, and in turn having distinct impacts on the structure of the entire membrane. Our findings may be relevant for understanding the effects of age-related changes in cholesterol and melatonin concentrations, including those in the brains of individuals with Alzheimer's disease.
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Akyuz E, Kullu I, Arulsamy A, Shaikh MF. Melatonin as an Antiepileptic Molecule: Therapeutic Implications via Neuroprotective and Inflammatory Mechanisms. ACS Chem Neurosci 2021; 12:1281-1292. [PMID: 33813829 DOI: 10.1021/acschemneuro.1c00083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Epilepsy is a result of unprovoked, uncontrollable, and repetitive outburst of abnormal and excessive electrical discharges, known as seizures, in the neurons. Epilepsy is a devastating neurological condition that affects 70 million people globally. Unfortunately, only two-thirds of epilepsy patients respond to antiepileptic drugs while others become drug resistant and may be more prone to epilepsy comorbidities such as SUDEP. Oxidative stress, mitochondrial dysfunction, imbalance in the excitatory and inhibitory neurotransmitters, and neuroinflammation are some of the common pathologies of neurological disorders and epilepsy. Studies suggests that melatonin, a pineal hormone that governs sleep-wake cycles, may be neuroprotective against neurological disorders and thus may be translated as an antiepileptic as well. Melatonin has been shown to be an antioxidant, antiexcitotoxic, and anti-inflammatory hormone/molecule in neurodegenerative diseases, which may contribute to its antiepileptic and neuroprotective properties in epilepsy as well. In addition, melatonin has evidently been shown to play a regulatory role in the cardiorespiratory system and sleep-wake cycles, which may have positive implications toward epilepsy associated comorbidities, such as SUDEP. However, studies investigating the changes in melatonin release due to epilepsy and melatonin's antiepileptic role have been inconclusive and scarce, respectively. Thus, this comprehensive review aims to summarize and elucidate the potential role of melatonin in the pathogenesis of epilepsy and its comorbidities, in hopes to develop new diagnostic and therapeutic approaches that will improve the lives of epileptic patients, particularly those who are drug resistant.
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Affiliation(s)
- Enes Akyuz
- University of Health Sciences, International Medicine Faculty, Department of Biophysics, Istanbul, Turkey
| | - Irem Kullu
- Medical School, Yozgat Bozok University, 66100 Yozgat, Turkey
| | - Alina Arulsamy
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500 Selangor, Malaysia
| | - Mohd. Farooq Shaikh
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500 Selangor, Malaysia
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14
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Marhuenda J, Villaño D, Arcusa R, Zafrilla P. Melatonin in Wine and Beer: Beneficial Effects. Molecules 2021; 26:molecules26020343. [PMID: 33440795 PMCID: PMC7827953 DOI: 10.3390/molecules26020343] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/04/2021] [Accepted: 01/05/2021] [Indexed: 12/15/2022] Open
Abstract
Melatonin is a hormone secreted in the pineal gland with several functions, especially regulation of circadian sleep cycle and the biological processes related to it. This review evaluates the bioavailability of melatonin and resulting metabolites, the presence of melatonin in wine and beer and factors that influence it, and finally the different benefits related to treatment with melatonin. When administered orally, melatonin is mainly absorbed in the rectum and the ileum; it has a half-life of about 0.45–1 h and is extensively inactivated in the liver by phase 2 enzymes. Melatonin (MEL) concentration varies from picograms to ng/mL in fermented beverages such as wine and beer, depending on the fermentation process. These low quantities, within a dietary intake, are enough to reach significant plasma concentrations of melatonin, and are thus able to exert beneficial effects. Melatonin has demonstrated antioxidant, anticarcinogenic, immunomodulatory and neuroprotective actions. These benefits are related to its free radical scavenging properties as well and the direct interaction with melatonin receptors, which are involved in complex intracellular signaling pathways, including inhibition of angiogenesis and cell proliferation, among others. In the present review, the current evidence on the effects of melatonin on different pathophysiological conditions is also discussed.
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15
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The influence of circadian rhythms and aerobic glycolysis in autism spectrum disorder. Transl Psychiatry 2020; 10:400. [PMID: 33199680 PMCID: PMC7669888 DOI: 10.1038/s41398-020-01086-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 05/05/2020] [Accepted: 05/14/2020] [Indexed: 02/06/2023] Open
Abstract
Intellectual abilities and their clinical presentations are extremely heterogeneous in autism spectrum disorder (ASD). The main causes of ASD remain unclear. ASD is frequently associated with sleep disorders. Biologic rhythms are complex systems interacting with the environment and controlling several physiological pathways, including brain development and behavioral processes. Recent findings have shown that the deregulation of the core clock neurodevelopmental signaling is correlated with ASD clinical presentation. One of the main pathways involved in developmental cognitive disorders is the canonical WNT/β-catenin pathway. Circadian clocks have a main role in some tissues by driving circadian expression of genes involved in physiologic and metabolic functions. In ASD, the increase of the canonical WNT/β-catenin pathway is enhancing by the dysregulation of circadian rhythms. ASD progression is associated with a major metabolic reprogramming, initiated by aberrant WNT/β-catenin pathway, the aerobic glycolysis. This review focuses on the interest of circadian rhythms dysregulation in metabolic reprogramming in ASD through the aberrant upregulation of the canonical WNT/β-catenin pathway.
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16
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Touitou Y, Point S. Effects and mechanisms of action of light-emitting diodes on the human retina and internal clock. ENVIRONMENTAL RESEARCH 2020; 190:109942. [PMID: 32758719 DOI: 10.1016/j.envres.2020.109942] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/29/2020] [Accepted: 07/10/2020] [Indexed: 05/11/2023]
Abstract
White light-emitting diodes (LEDs) will likely become the most used lighting devices worldwide in the future because of their very low prices over the course of their long lifespans which can be up to several tens of thousands of hours. The expansion of LED use in both urban and domestic lighting has prompted questions regarding their possible health effects, because the light that they provide is potentially high in the harmful blue band (400-500 nm) of the visible light spectrum. Research on the potential effects of LEDs and their blue band on human health has followed three main directions: 1) examining their retinal phototoxicity; 2) examining disruption of the internal clock, i.e., an out-of-sync clock, in shift workers and night workers, including the accompanying health issues, most concerningly an increased relative risk of cancer; and 3) examining risky, inappropriate late-night use of smartphones and consoles among children and adolescents. Here, we document the recognized or potential health issues associated with LED lighting together with their underlying mechanisms of action. There is so far no evidence that LED lighting is deleterious to human retina under normal use. However, exposure to artificial light at night is a new source of pollution because it affects the circadian clock. Blue-rich light, including cold white LEDs, should be considered a new endocrine disruptor, because it affects estrogen secretion and has unhealthful consequences in women, as demonstrated to occur via a complex mechanism.
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Affiliation(s)
- Yvan Touitou
- Unité de Chronobiologie, Fondation A. de Rothschild, 75019, Paris, France.
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17
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Tamarindo GH, Gobbo MG, Taboga SR, Almeida EA, Góes RM. Melatonin ameliorates degenerative alterations caused by age in the rat prostate and mitigates high-fat diet damages. Cell Biol Int 2020; 45:92-106. [PMID: 32991000 DOI: 10.1002/cbin.11472] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/03/2020] [Accepted: 09/26/2020] [Indexed: 12/16/2022]
Abstract
Imbalance of sexual steroids milieu and oxidative stress are often observed during aging and correlated to prostate disorders. Likewise, high-fat intake has been related to prostate damage and tumor development. Melatonin (MLT) is an antioxidant whose secretion decreases in elderly and is also suggested to protect the gland. This study evaluated the impact of a long-term high-fat diet during aging on prostate morphology and antioxidant system of rats and tested the effects of MLT supplementation under these conditions. Male rats were assigned into four groups: control, treated with MLT, high-fat diet and high-fat diet treated with MLT. The high-fat diet was provided from the 24th week of age, MLT from the 48th (100 μg/kg/day) and rats were euthanized at the 62nd week. The high-fat diet increased body weight, retroperitoneal fatness, glycaemia, and circulating estrogen levels. It aggravated the aging effects, leading to epithelial atrophy (∼32% reduction of epithelial height) and collagen fibers increase (83%). MLT alone did not alter biometric and physiological parameters, except for the prostate weight decrease, whereas it alleviated biometric as well as ameliorated acinar atrophy induced by high-lipid intake. Systemic oxidative stress increased, and prostatic glutathione peroxidase activity decreased fivefold with the high-fat diet despite the indole. Regardless of the diet, MLT triggered epithelial desquamation, reduced androgen receptor-positive cells, increased smooth muscle layer thickness (12%), decreased at least 50% corpora amylacea formation, and stimulated prostatic gluthatione-S-transferase activity. In conclusion, MLT partially recovered prostate damage induced by aging and the long-term high-fat diet and ameliorated degenerative prostate alterations.
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Affiliation(s)
- Guilherme H Tamarindo
- Institute of Biology, State University of Campinas, Campinas, São Paulo, Brazil.,Department of Biology, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University, São José do Rio Preto, São Paulo, Brazil
| | - Marina G Gobbo
- Institute of Biology, State University of Campinas, Campinas, São Paulo, Brazil.,Department of Biology, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University, São José do Rio Preto, São Paulo, Brazil
| | - Sebastião R Taboga
- Institute of Biology, State University of Campinas, Campinas, São Paulo, Brazil.,Department of Biology, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University, São José do Rio Preto, São Paulo, Brazil
| | - Eduardo A Almeida
- Department of Chemistry and Environmental Sciences, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University, São José do Rio Preto, São Paulo, Brazil.,Department of Natural Sciences, Regional University of Blumenau, Blumenau, Santa Catarina, Brazil
| | - Rejane M Góes
- Institute of Biology, State University of Campinas, Campinas, São Paulo, Brazil.,Department of Biology, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University, São José do Rio Preto, São Paulo, Brazil
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Greendale GA, Witt-Enderby P, Karlamangla AS, Munmun F, Crawford S, Huang M, Santoro N. Melatonin Patterns and Levels During the Human Menstrual Cycle and After Menopause. J Endocr Soc 2020; 4:bvaa115. [PMID: 33094207 PMCID: PMC7566378 DOI: 10.1210/jendso/bvaa115] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/26/2020] [Indexed: 11/19/2022] Open
Abstract
Context Melatonin may play a role in the regulation of the human menstrual cycle and may decline with menopause and/or aging. Objective The objective of this work is to investigate the relations between melatonin and the menstrual cycle, menopause, and aging. Methods This was a cross-sectional and longitudinal analysis of 20 participants from the Study of Women’s Health Across the Nation (SWAN) Daily Hormone Study (DHS). The outcome measure was first-morning urine assay of 6-sulfatoxymelatonin (aMT6s), a gauge of melatonin. For each participant, aMT6s was measured daily during one premenopausal cycle with evidence of luteal activity (ELA) and one postmenopausal collection with no evidence of luteal activity (NELA). Results In addition to the organized patterns of hormone metabolites (estrone conjugates [E1c], and pregnanediol glucuronide [PdG]) and gonadotropins that characterized ovulatory menstrual cycles, there was a late luteal rise in aMT6s. In NELA collections, there was no periodicity of E1c, PdG, gonadotropins, or aMT6s. The strongest predictors of aMT6s levels were PdG values 11 to 12 days prior to aMT6s (β = 1.46, P = .001 and β = 1.44, P = .001, respectively). E1c and gonadotropins were not statistically significantly associated with aMT6s. Mean aMT6s in premenopause was 53.5 ng/mL, greater than the mean of 37.4 ng/mL in postmenopausal samples from the same women (P = .0002). Conclusions This study confirms a late luteal melatonin rise, likely signaled by progesterone, which may influence menstrual cycle pacemaker control. Melatonin declined from premenopause to postmenopause. A high correlation between menopause transition stage and age precludes distinction between the influences of ovarian and chronological aging.
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Affiliation(s)
- Gail A Greendale
- Department of Medicine, Division of Geriatrics, University of California, Los Angeles, Los Angeles, California
| | - Paula Witt-Enderby
- Division of Pharmaceutical, Administrative and Social Sciences, Duquesne University School of Pharmacy, Pittsburgh, Pennsylvania
| | - Arun S Karlamangla
- Department of Medicine, Division of Geriatrics, University of California, Los Angeles, Los Angeles, California
| | - Fahima Munmun
- Division of Pharmaceutical, Administrative and Social Sciences, Duquesne University School of Pharmacy, Pittsburgh, Pennsylvania
| | - Sybil Crawford
- University of Massachusetts Medical School, Graduate School of Nursing, Worcester, Massachusetts
| | - MeiHua Huang
- Department of Medicine, Division of Geriatrics, University of California, Los Angeles, Los Angeles, California
| | - Nanette Santoro
- Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, Colorado
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Kukkemane K, Jagota A. Therapeutic effects of hydro-alcoholic leaf extract of Withania somnifera on age-induced changes in daily rhythms of Sirt1, Nrf2 and Rev-erbα in the SCN of male Wistar rats. Biogerontology 2020; 21:593-607. [PMID: 32249404 DOI: 10.1007/s10522-020-09875-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 03/30/2020] [Indexed: 12/23/2022]
Abstract
The temporal expression pattern of the circadian clock genes are known to be altered/attenuated with advance in age. Withania somnifera (WS) essentially consists of numerous active constituents including withanolides is known to have antioxidant, anti-inflammatory and adaptogenic properties. We have earlier demonstrated therapeutic effects of hydro-alcoholic leaf extract of WS on the age-induced alterations in the levels and daily rhythms of various clock genes such as rBmal1, rPer1, rPer2 and rCry1. We have now studied effects of hydro-alcoholic leaf extract of WS on the age-induced alterations in the levels and daily rhythms of expression of SIRT1 (an NAD+ dependent histone deacetylase and a modulator of clock) and NRF2 (a clock controlled gene and a master transcription factor regulating various endogenous antioxidant enzymes) in addition to rRev-erbα in SCN of adult [3 months (m)], middle-aged (12 m) and old-aged (24 m) male Wistar rats. The daily rhythms of rNrf2 expression showed 6 h phase delay in middle age and 12 h phase advance in old age. WS restored rSirt1 daily rhythms and phase in old age whereas it restored the phase of rNrf2 in the SCN of both middle and old aged animals. At protein level, SIRT1 expression showed phase advances in 12 m and 24 m whereas NRF2 daily rhythms were abolished in both the age groups. WS restored the phase and daily rhythms of SIRT1 as well as NRF2 in 12 m old rats. However, rRev-erbα expression was found insensitive to WS treatment in all the age groups studied. Pairwise correlation analysis demonstrated significant stoichiometric interactions among rSirt1, rNrf2 and rRev-erbα in 3 m which altered with aging significantly. WS treatment resulted in differential restorations of such interactions.
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Affiliation(s)
- Kowshik Kukkemane
- Neurobiology and Molecular Chronobiology Laboratory, Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Anita Jagota
- Neurobiology and Molecular Chronobiology Laboratory, Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India.
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Wang B, Wen H, Smith W, Hao D, He B, Kong L. Regulation effects of melatonin on bone marrow mesenchymal stem cell differentiation. J Cell Physiol 2019; 234:1008-1015. [PMID: 30145787 DOI: 10.1002/jcp.27090] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 06/28/2018] [Indexed: 12/26/2022]
Abstract
Melatonin's therapeutic potential has been highly underestimated because its biological functional roles are diverse and relevant mechanisms are complicated. Among the numerous biological activities of melatonin, its regulatory effects on pluripotent mesenchymal stem cells (MSCs), which are found in bone marrow stem cells (BMSCs) and adipose tissue (AD-MSC), have been recently proposed, which has received increasingly more attention in recent studies. Moreover, receptor-dependent and receptor-independent responses to melatonin are identified to occur in these cells by regulating signaling pathways, which drive the commitment and differentiation of MSCs into osteogenic, chondrogenic, or adipogenic lineages. Therefore, the aim of our current review is to summarize the evidence related to the utility of melatonin as a regulatory agent by focusing on its relationship with the differentiation of MSCs. In particular, we aimed to review its roles in promoting osteogenic and chondrogenic differentiation and the relevant signaling cascades involved. Also, the roles that melatonin and, particularly, its receptors play in these processes are highlighted.
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Affiliation(s)
- Biao Wang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Hao Wen
- Department of Orthopedic, Yan'an University Medical School, Yan'an, China
| | - Wanli Smith
- Department of Psychiatry and Behavioral Sciences, School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Dingjun Hao
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Baorong He
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Lingbo Kong
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
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21
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Silva MRG, Paiva T, Silva HH. The elite athlete as a special risk traveler and the jet lag's effect: lessons learned from the past and how to be prepared for the next Olympic Games 2020 Tokyo. J Sports Med Phys Fitness 2019; 59:1420-1429. [PMID: 30650944 DOI: 10.23736/s0022-4707.18.08894-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Elite athletes have to travel long-haul distances and cross multiple meridians; thus, a unique syndrome named as jet-lag is induced. Furthermore, traveler athletes are submitted to several factors negatively affecting their well-being and athletic performance. This qualitative descriptive study aims to promote safely and future promising participations of elite athletes in great events, such as the next Olympic Games 2020 Tokyo, based on the chronobiology of jet-lag, factors affecting the traveler athlete and previous experiences from the 2014 FIFA World Cup Brazil, the 2018 FIFA World Cup Russia and the Olympic Games Rio 2016. METHODS A narrative review of the literature across a broad cross-section of the chronobiology of jet-lag and factors affecting the traveler athlete was undertaken. In addition, a general analysis based on the past sport events aforementioned is also included. RESULTS The jet-lag disorder may occur after transmeridian travel over more than three time-zones and the resynchronization is dependent on the direction and number of the time-zones crossed and the availability and the intensity of local circadian time cues. Also the athlete's ability to sleep, eat, get hydrated and train, are essential, as well as, others individual tolerance differences, such as age, gender, chronotype and ethnic differences. Athletes should arrive a number of days before the competition according to the number of time-zone transitions experienced. CONCLUSIONS Jet-lag is usually benign and self-limited, but can occasionally have serious consequences for the athlete's mental and physical health and performance. A good plan concerning the athlete's traveling schedule, sleeping, eating and training before and after travelling is mandatory.
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Affiliation(s)
- Maria-Raquel G Silva
- Faculty of Health Sciences, University Fernando Pessoa, Oporto, Portugal - .,Research Center for Anthropology and Health, University of Coimbra, Coimbra, Portugal - .,Scientific Commission of the Gymnastics Federation of Portugal, Lisbon, Portugal -
| | | | - Hugo-Henrique Silva
- Portuguese Ministry of Education, Lisbon, Portugal.,Óquei Clube de Barcelos, Barcelos, Portugal
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22
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Paulose JK, Wang C, O'Hara BF, Cassone VM. The effects of aging on sleep parameters in a healthy, melatonin-competent mouse model. Nat Sci Sleep 2019; 11:113-121. [PMID: 31496853 PMCID: PMC6697669 DOI: 10.2147/nss.s214423] [Citation(s) in RCA: 14] [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: 05/04/2019] [Accepted: 06/24/2019] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Sleep disturbances are common maladies associated with human age. Sleep duration is decreased, sleep fragmentation is increased, and the timing of sleep onset and sleep offset is earlier. These disturbances have been associated with several neurodegenerative diseases. Mouse models for human sleep disturbances can be powerful due to the accessibility to neuroscientific and genetic approaches, but these are hampered by the fact that most mouse models employed in sleep research have spontaneous mutations in the biosynthetic pathway(s) regulating the rhythmic production of the pineal hormone melatonin, which has been implicated in human sleep. PURPOSE AND METHOD The present study employed a non-invasive piezoelectric measure of sleep wake cycles in young, middle-aged and old CBA mice, a strain capable of melatonin biosynthesis, to investigate naturally-occurring changes in sleep and circadian parameters as the result of aging. RESULTS The results indicate that young mice sleep less than do middle-aged or aged mice, especially during the night, while the timing of activity onset and acrophase is delayed in aged mice compared to younger mice. CONCLUSION These data point to an effect of aging on the quality and timing of sleep in these mice but also that there are fundamental differences between control of sleep in humans and in laboratory mice.
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Affiliation(s)
- Jiffin K Paulose
- Department of Biology, University of Kentucky, Lexington, KY 40515, USA
| | - Chanung Wang
- Department of Biology, University of Kentucky, Lexington, KY 40515, USA.,Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Bruce F O'Hara
- Department of Biology, University of Kentucky, Lexington, KY 40515, USA
| | - Vincent M Cassone
- Department of Biology, University of Kentucky, Lexington, KY 40515, USA
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23
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An antibody-based platform for melatonin quantification. Colloids Surf B Biointerfaces 2018; 171:94-100. [DOI: 10.1016/j.colsurfb.2018.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/13/2018] [Accepted: 07/03/2018] [Indexed: 12/23/2022]
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Proserpio P, Arnaldi D, Nobili F, Nobili L. Integrating Sleep and Alzheimer’s Disease Pathophysiology: Hints for Sleep Disorders Management. J Alzheimers Dis 2018; 63:871-886. [DOI: 10.3233/jad-180041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Paola Proserpio
- Centre of Sleep Medicine, Department of Neuroscience, Niguarda Hospital, Milan, Italy
| | - Dario Arnaldi
- Department of Neuroscience (DINOGMI), University of Genoa, Italy
- Clinical of Neurology, Polyclinic San Martino Hospital, Genoa, Italy
| | - Flavio Nobili
- Department of Neuroscience (DINOGMI), University of Genoa, Italy
- Clinical of Neurology, Polyclinic San Martino Hospital, Genoa, Italy
| | - Lino Nobili
- Centre of Sleep Medicine, Department of Neuroscience, Niguarda Hospital, Milan, Italy
- Department of Neuroscience (DINOGMI), University of Genoa, Italy
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25
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Semenova NV, Madaeva IM, Bairova TA, Zhambalova RM, Sholokhov LF, Kolesnikova LI. Association of the melatonin circadian rhythms with clock 3111T/C gene polymorphism in Caucasian and Asian menopausal women with insomnia. Chronobiol Int 2018; 35:1066-1076. [PMID: 29621412 DOI: 10.1080/07420528.2018.1456447] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A comparative analysis of melatonin circadian rhythms in Caucasian (incoming population) and Asian (indigenous population) menopausal women with/without sleep disorders depending on the genotype of Clock 3111T/C gene polymorphism was realized.The melatonin level in the saliva was determined four times a day (6:00-7:00, 12:00-13:00, 18:00-19:00, 23:00-00:00 h). The Caucasian women-carriers of the TT-genotype with insomnia as compared to control group-had a higher morning melatonin level and a lower night melatonin level. The Asian women with TT-genotype and insomnia had a lower levels of melatonin as compared to control at daytime, evening and night. A significantly higher melatonin level in the early morning hours was detected in the Caucasian women-carriers of the TT-genotype with insomnia as compared to group womencarriers of the minor 3111C-allele. There were no statistically significant differences in the circadian rhythms of melatonin in the Asian women depending on the genotype of the Clock 3111T/C polymorphism. An assumption with respect to the protective role of the minor allele 3111C in the development of insomnia associated with the displacement of melatonin circadian rhythms in the representatives of the incoming population was made.
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Affiliation(s)
- Natalya V Semenova
- a Scientific Centre for Family Health and Human Reproduction Problems , Federal State Public Scientific Institution , Irkutsk , Russian Federation
| | - Irina M Madaeva
- a Scientific Centre for Family Health and Human Reproduction Problems , Federal State Public Scientific Institution , Irkutsk , Russian Federation
| | - Tatiana A Bairova
- a Scientific Centre for Family Health and Human Reproduction Problems , Federal State Public Scientific Institution , Irkutsk , Russian Federation
| | - Radzhana M Zhambalova
- a Scientific Centre for Family Health and Human Reproduction Problems , Federal State Public Scientific Institution , Irkutsk , Russian Federation
| | - Leonid F Sholokhov
- a Scientific Centre for Family Health and Human Reproduction Problems , Federal State Public Scientific Institution , Irkutsk , Russian Federation
| | - Luybov I Kolesnikova
- a Scientific Centre for Family Health and Human Reproduction Problems , Federal State Public Scientific Institution , Irkutsk , Russian Federation
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Zarei I, Brown DG, Nealon NJ, Ryan EP. Rice Bran Metabolome Contains Amino Acids, Vitamins & Cofactors, and Phytochemicals with Medicinal and Nutritional Properties. RICE (NEW YORK, N.Y.) 2017; 10:24. [PMID: 28547736 PMCID: PMC5453916 DOI: 10.1186/s12284-017-0157-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 04/21/2017] [Indexed: 05/06/2023]
Abstract
BACKGROUND Rice bran is a functional food that has shown protection against major chronic diseases (e.g. obesity, diabetes, cardiovascular disease and cancer) in animals and humans, and these health effects have been associated with the presence of bioactive phytochemicals. Food metabolomics uses multiple chromatography and mass spectrometry platforms to detect and identify a diverse range of small molecules with high sensitivity and precision, and has not been completed for rice bran. RESULTS This study utilized global, non-targeted metabolomics to identify small molecules in rice bran, and conducted a comprehensive search of peer-reviewed literature to determine bioactive compounds. Three U.S. rice varieties (Calrose, Dixiebelle, and Neptune), that have been used for human dietary intervention trials, were assessed herein for bioactive compounds that have disease control and prevention properties. The profiling of rice bran by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) and gas chromatography-mass spectrometry (GC-MS) identified 453 distinct phytochemicals, 209 of which were classified as amino acids, cofactors & vitamins, and secondary metabolites, and were further assessed for bioactivity. A scientific literature search revealed 65 compounds with health properties, 16 of which had not been previously identified in rice bran. This suite of amino acids, cofactors & vitamins, and secondary metabolites comprised 46% of the identified rice bran metabolome, which substantially enhanced our knowledge of health-promoting rice bran compounds provided during dietary supplementation. CONCLUSION Rice bran metabolite profiling revealed a suite of biochemical molecules that can be further investigated and exploited for multiple nutritional therapies and medical food applications. These bioactive compounds may also be biomarkers of dietary rice bran intake. The medicinal compounds associated with rice bran can function as a network across metabolic pathways and this metabolite network may occur via additive and synergistic effects between compounds in the food matrix.
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Affiliation(s)
- Iman Zarei
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
- Institute of Human Nutrition and Food, College of Human Ecology, University of the Philippines Los Baños, Los Baños, 4031 Laguna Philippines
| | - Dustin G. Brown
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
| | - Nora Jean Nealon
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
| | - Elizabeth P. Ryan
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
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Tong J, Sheng S, Sun Y, Li H, Li WP, Zhang C, Chen ZJ. Melatonin levels in follicular fluid as markers for IVF outcomes and predicting ovarian reserve. Reproduction 2017; 153:443-451. [DOI: 10.1530/rep-16-0641] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 11/26/2016] [Accepted: 01/06/2017] [Indexed: 01/09/2023]
Abstract
Good-quality oocytes are critical for the success of in vitro fertilization (IVF), but, to date, there is no marker of ovarian reserve available that can accurately predict oocyte quality. Melatonin exerts its antioxidant actions as a strong radical scavenger that might affect oocyte quality directly as it is the most potent antioxidant in follicular fluid. To investigate the precise role of endogenous melatonin in IVF outcomes, we recruited 61 women undergoing treatment cycles of IVF or intracytoplasmic sperm injection (ICSI) procedures and classified them into three groups according to their response to ovarian stimulation. Follicular fluid was collected to assess melatonin levels using a direct RIA method. We found good correlations between melatonin levels in follicular fluid with age, anti-Müllerian hormone (AMH) and baseline follicle-stimulating hormone (bFSH), all of which have been used to predict ovarian reserve. Furthermore, as melatonin levels correlated to IVF outcomes, higher numbers of oocytes were collected from patients with higher melatonin levels and consequently the number of oocytes fertilized, zygotes cleaved, top quality embryos on D3, blastocysts obtained and embryos suitable for transplantation was higher. The blastocyst rate increased in concert with the melatonin levels across the gradient between the poor response group and the high response group. These results demonstrated that the melatonin levels in follicular fluid is associated with both the quantity and quality of oocytes and can predict IVF outcomes as well making them highly relevant biochemical markers of ovarian reserve.
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Disruption of adolescents’ circadian clock: The vicious circle of media use, exposure to light at night, sleep loss and risk behaviors. ACTA ACUST UNITED AC 2016; 110:467-479. [DOI: 10.1016/j.jphysparis.2017.05.001] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 04/12/2017] [Accepted: 05/05/2017] [Indexed: 12/29/2022]
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Asghari MH, Moloudizargari M, Bahadar H, Abdollahi M. A review of the protective effect of melatonin in pesticide-induced toxicity. Expert Opin Drug Metab Toxicol 2016; 13:545-554. [DOI: 10.1080/17425255.2016.1214712] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2022]
Affiliation(s)
- Mohammad Hossein Asghari
- Department of Pharmacology, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Milad Moloudizargari
- Young Researchers and Elite Club, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Haji Bahadar
- Department of Pharmacy, Kohat University of Science and Technology, Kohat, Pakistan
| | - Mohammad Abdollahi
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
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Physiological melatonin levels in healthy older people: A systematic review. J Psychosom Res 2016; 86:20-7. [PMID: 27302542 DOI: 10.1016/j.jpsychores.2016.05.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 04/21/2016] [Accepted: 05/09/2016] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Melatonin plays a major role in maintaining circadian rhythm. Previous studies showed that its secretion pattern and levels could be disturbed in persons with dementia, psychiatric disorders, sleep disorders or with cancer. Also ageing is a factor that could alter melatonin levels, although previous research provides contradicting results. As melatonin supplementation is increasingly applied in older persons as sleep medication, it is important to know if melatonin levels decrease in healthy ageing and/or secretion patterns change. The objective of this study is to determine physiological levels and secretion patterns of melatonin in healthy older people. METHODS We performed a systematic review and searched PubMed and Embase for studies published between January 1st 1980 and October 5th 2015 that measured melatonin in healthy persons aged ≥65years. RESULTS Nineteen studies were retrieved. The number of participants ranged from 5 to 60 per study. Melatonin was mostly measured by radioimmunoassay (RIA) and the number of measurements per 24hours varied from 1 to 96. Sixteen studies showed a secretion pattern with a clear peak concentration, mostly at 0200h or 0300h. Maximum concentrations varied greatly from 11.2 to 91.3pgml(-1). Maximum melatonin level in studies with participants mean aged 65-70years was 49.3pgml(-1) and in studies with participants mean aged ≥75years 27.8pgml(-1), p-value <0.001. CONCLUSION Total melatonin production in 24hours seems not to change in healthy ageing, but the maximal nocturnal peak concentration of melatonin might decline. It is important to take this into account when prescribing melatonin supplementation to older people.
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Yoo YM, Jang SK, Kim GH, Park JY, Joo SS. Pharmacological advantages of melatonin in immunosenescence by improving activity of T lymphocytes. J Biomed Res 2016; 30:314-21. [PMID: 27533940 PMCID: PMC4946322 DOI: 10.7555/jbr.30.2016k0010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 11/05/2015] [Accepted: 03/20/2016] [Indexed: 01/09/2023] Open
Abstract
Melatonin plays a critical role in regulating photoperiodic signals and has recently been shown to decrease immunosenescence with age. In this study, we examined whether melatonin activates T lymphocytes as major adaptive immune cells in in vitro and in vivo models. Splenocytes, CD4+, and naïve CD4 T lymphocytes were isolated from the spleen of BALB/c mice and the cell population patterns and mRNA profiles associated with T cell activation (CD28 and p21) and the melatonin receptor (MT1A and MT1B) were assessed. The T cell activation-related proteins Ki67 and Bcl2 were also evaluated to confirm the relationship between gene and protein levels. Our data clearly revealed that CD28, p21, MT1A, and MT1B mRNA were highly expressed in the presence of melatonin. Co-culture of CD4+ T lymphocyte and peritoneal macrophage 7 days after melatonin administration to young and aged mice significantly increased APRIL mRNA, suggesting induction or maintenance of T lymphocyte responses. We also found that the intracellular amount of Ki67 and Bcl2 proteins were significantly upregulated in aged CD4+ T lymphocytes, suggesting enhancing T cell proliferation and ling-term maintenance of memory T cells. Taken together, we conclude that melatonin supplementation may enhance immunity in aged individuals by upregulating immunosenescence indices in association with T lymphocytes and may be an attractive pharmacological candidate for aged and immunocompromised individuals.
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Affiliation(s)
- Yeong-Min Yoo
- Department of Biomedical Engineering, College of Health Science, Yonsei University, Wonju, Gangwon-do 220-710, Republic of Korea
| | - Su Kil Jang
- College of Life Science, Gangneung-Wonju National University, Gangneung, Gangwon-do 210-702, Republic of Korea
| | - Gwang-Hoon Kim
- College of Life Science, Gangneung-Wonju National University, Gangneung, Gangwon-do 210-702, Republic of Korea
| | - Jung-Youl Park
- Industry-Academic Cooperation Foundation, Hanbat National University, Daejeon 305-719, Republic of Korea
| | - Seong-Soo Joo
- College of Life Science, Gangneung-Wonju National University, Gangneung, Gangwon-do 210-702, Republic of Korea.
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Abstract
OBJECTIVES Circadian rhythms are severely disrupted among the critically ill. These circadian arrhythmias impair mentation, immunity, autonomic function, endocrine activity, hormonal signaling, and ultimately healing. In this review, we present a modern model of circadian disruption among the critically ill, discuss causes of these circadian arrhythmias, review observational and intervention studies of the effects of circadian-rhythm-restoring factors on medical outcomes, and identify needed key trials of circadian interventions in the critically ill. DATA SOURCES MEDLINE, EMBASE, PsychINFO, Google Scholar through December 2014. STUDY SELECTION Articles relevant to circadian rhythms, melatonin, and light in the critically ill were selected. DATA EXTRACTION AND DATA SYNTHESIS Articles were synthesized for this review of circadian arrhythmia and the use of circadian-rhythm-restoring interventions among the critically ill. CONCLUSIONS Circadian disruption often demonstrates serial degradation: initially, the amplitude attenuates along with delayed circadian phase. With increasing acuity of illness, circadian rhythmicity may be lost entirely. Causes of chronodisruption may be environmental or internal to the patient. In particular, inadequate daytime illumination and nocturnal light pollution disrupt healthy circadian periodicity. Internal causes of circadian arrhythmia include critical illness itself and subjective experience of distress and pain. Observational studies of windowed rooms and real-time ambient lighting have found that physiologic light-dark patterns may support recovery from critical illness. Studies of early morning bright light or evening melatonin agonists have found improved rates of delirium, enhanced sleep, and lower arrhythmia prevalence. The current evidence base emphasizes that lighting and melatoninergic interventions deserve to be tested in full-scale trials.
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Popa-Wagner A, Buga AM, Dumitrascu DI, Uzoni A, Thome J, Coogan AN. How does healthy aging impact on the circadian clock? J Neural Transm (Vienna) 2015; 124:89-97. [PMID: 26175004 DOI: 10.1007/s00702-015-1424-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 06/30/2015] [Indexed: 12/23/2022]
Abstract
Circadian rhythms are recurring patterns in a host of physiological and other parameters that recur with periods of near 24 h. These rhythms reflect the temporal organization of an organism's homeostatic control systems and as such are key processes in ensuring optimal physiological performance. Dysfunction of circadian processes is linked with adverse health conditions. In this review we highlight the evidence that normal, healthy aging is associated with changes in the circadian system; we examine the molecular mechanisms through which such changes may arise, discuss whether more robust circadian function is a predictor of longevity and highlight the role of circadian rhythms in age-related diseases. Overall, the literature shows that aging is associated with marked changes in circadian processes, both at the behavioral and molecular levels, and the molecular mechanisms through which such changes arise remain to be elucidated, but may involve inflammatory process, redox homeostasis and epigenetic modifications. Understanding the nature of age-related circadian dysfunction will allow for the design of chronotherapeutic intervention strategies to attenuate circadian dysfunction and thus improve health and quality of life.
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Affiliation(s)
- Aurel Popa-Wagner
- Department of Psychiatry, University of Medicine Rostock, Gehlsheimerstr. 20, 18147, Rostock, Germany.
| | - Ana-Maria Buga
- Department of Functional Sciences, Center of Clinical and Experimental Medicine, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Dinu Iuliu Dumitrascu
- Department of Anatomy and Embryology, UMF "Iuliu Hatieganu" Cluj, Cluj-Napoca, Romania
| | - Adriana Uzoni
- Department of Psychiatry, University of Medicine Rostock, Gehlsheimerstr. 20, 18147, Rostock, Germany
| | - Johannes Thome
- Department of Psychiatry, University of Medicine Rostock, Gehlsheimerstr. 20, 18147, Rostock, Germany
| | - Andrew N Coogan
- Maynooth University Department of Psychology, National University of Ireland, Maynooth, Co. Kildare, Ireland
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Kang D, Lim HK, Jung WS, Jeong JH, Kim TW, Han JH, Lee CU, Hong SC. Sleep and Alzheimer’s Disease. SLEEP MEDICINE RESEARCH 2015. [DOI: 10.17241/smr.2015.6.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
"What will you give my child to help him sleep?" is a common question parents ask and some health care providers abhor hearing. Entire families may suffer when one member does not sleep well. Poor sleep may complicate the management of other comorbid conditions. Health care providers may have received only limited education on sleep disorders and are frequently forced to choose between treatment options that are poorly studied in children. Fortunately, when addressed correctly, many children with chronic sleep disorders may improve their sleep and daytime behavior in a relatively short time. This review provides a framework to help understand the causes of poor sleep in children and the potential pharmacologic options.
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Affiliation(s)
- Matthew M Troester
- Department of Neurology, University of Arizona College of Medicine, Phoenix, AZ; Department of Pediatrics, Creighton University College of Medicine, Omaha, NE; Comprehensive Sleep Medicine Program, Phoenix Children's Hospital, Phoenix, AZ.
| | - Rafael Pelayo
- Stanford Sleep Disorders Clinic, Stanford University School of Medicine, Redwood City, CA
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Effect of Melatonin on the Extracellular-Regulated Kinase Signal Pathway Activation and Human Osteoblastic Cell Line hFOB 1.19 Proliferation. Int J Mol Sci 2015; 16:10337-53. [PMID: 25961946 PMCID: PMC4463649 DOI: 10.3390/ijms160510337] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 04/21/2015] [Accepted: 04/27/2015] [Indexed: 02/06/2023] Open
Abstract
It has been shown that melatonin may affect bone metabolism. However, it is controversial whether melatonin could promote osteoblast proliferation, and the precise molecular mechanism of melatonin on osteoblast proliferation is still obscure. In this study, the results of the CCK-8 assay showed that melatonin significantly promoted human osteoblastic cell line hFOB 1.19 cell proliferation at 1, 2.5, 5, 10, 25, 50 and 100 µM concentrations for 24 h, but there were no significant differences among the groups. Western blot demonstrated that 10 µM melatonin significantly promoted ERK1/2 phosphorylation. Furthermore, we also detected the phosphorylation of c-Raf, MEK1/2, p90RSK and MSK1, and all of them increased with 10 µM melatonin. U0126 (a selective inhibitor of MEK that disrupts downstream activation of ERK1/2) downregulated the phosphorylation of ERK1/2, p90RSK and MSK1. U0126 also attenuated the proliferation of osteoblasts stimulated by melatonin. In conclusion, this study for the first time indicates that melatonin (10 nM–100 µM) promotes the proliferation of a human osteoblastic cell line hFOB 1.19 through activation of c-Raf, MEK1/2, ERK1/2, p90RSK and MSK1.
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Sleep and Alzheimer's disease. Sleep Med Rev 2015; 19:29-38. [DOI: 10.1016/j.smrv.2014.03.007] [Citation(s) in RCA: 234] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 03/03/2014] [Accepted: 03/25/2014] [Indexed: 11/18/2022]
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Affiliation(s)
- Ozlem Ozcan
- Department of Child and Adolescent Psychiatry, İnönü University Medical Faculty , Malatya, Turkey
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Stathakis CI, Neokosmidis E, Koftis TV. A Scalable Synthesis of the Antidepressant Agomelatine by a Tandem Allylic Chlorination-Isomerization Process. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402886] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Bumb JM, Schilling C, Enning F, Haddad L, Paul F, Lederbogen F, Deuschle M, Schredl M, Nolte I. Pineal gland volume in primary insomnia and healthy controls: a magnetic resonance imaging study. J Sleep Res 2014; 23:274-80. [PMID: 24456088 DOI: 10.1111/jsr.12125] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 12/11/2013] [Indexed: 11/29/2022]
Abstract
Little is known about the relation between pineal volume and insomnia. Melatonin promotes sleep processes and, administered as a drug, it is suitable to improve primary and secondary sleep disorders in humans. Recent magnetic resonance imaging studies suggest that human plasma and saliva melatonin levels are partially determined by the pineal gland volume. This study compares the pineal volume in a group of patients with primary insomnia to a group of healthy people without sleep disturbance. Pineal gland volume (PGV) was measured on the basis of high-resolution 3 Tesla MRI (T1-magnetization prepared rapid gradient echo) in 23 patients and 27 controls, matched for age, gender and educational status. Volume measurements were performed conventionally by manual delineation of the pineal borders in multi-planar reconstructed images. Pineal gland volume was significantly smaller (P < 0.001) in patients (48.9 ± 26.6 mm(3) ) than in controls (79 ± 30.2 mm(3) ). In patients PGV correlated negatively with age (r = -0.532; P = 0.026). Adjusting for the effect of age, PGV and rapid eye movement (REM) latency showed a significant positive correlation (rS = 0.711, P < 0.001) in patients. Pineal volume appears to be reduced in patients with primary insomnia compared to healthy controls. Further studies are needed to clarify whether low pineal volume is the basis or the consequence of functional sleep changes to elucidate the molecular pathology for the pineal volume loss in primary insomnia.
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Affiliation(s)
- Jan M Bumb
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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Djeridane Y, Bonnefont-Rousselot D, Touitou Y. Day/night patterns of melatonin and oxidative stress markers in the rat Harderian gland. BIOL RHYTHM RES 2013. [DOI: 10.1080/09291016.2013.781327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Liebrich LS, Schredl M, Findeisen P, Groden C, Bumb JM, Nölte IS. Morphology and function: MR pineal volume and melatonin level in human saliva are correlated. J Magn Reson Imaging 2013; 40:966-71. [PMID: 24214660 DOI: 10.1002/jmri.24449] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Accepted: 09/10/2013] [Indexed: 11/08/2022] Open
Abstract
PURPOSE To investigate the relation between circadian saliva melatonin levels and pineal volume as determined by MRI. Plasma melatonin levels follow a circadian rhythm with a high interindividual variability. MATERIALS AND METHODS In 103 healthy individuals saliva melatonin levels were determined at four time points within 24 h and MRI was performed once (3.0 Tesla, including three-dimensional T2 turbo spin echo [3D-T2-TSE], susceptibility-weighted imaging [SWI]). Pineal volume as well as cyst volume were assessed from multiplanar reconstructed 3D-T2-TSE images. Pineal calcification volume tissue was determined on SWI. To correct for hormonal inactive pineal tissue, cystic and calcified areas were excluded. Sleep quality was assessed with the Landeck Inventory for sleep quality disturbance. RESULTS Solid and uncalcified pineal volume correlated to melatonin maximum (r = 0.28; P < 0.05) and area under the curve (r = 0.29; P < 0.05). Of interest, solid and uncalcified pineal volume correlated negatively with the sleep rhythm disturbances subscore (r = -0.17; P < 0.05) despite a very homogenous population. CONCLUSION Uncalcified solid pineal tissue measured by 3D-T2-TSE and SWI is related to human saliva melatonin levels. The analysis of the sleep quality and pineal volume suggests a linkage between better sleep quality and hormonal active pineal tissue.
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Affiliation(s)
- Luisa-Sophie Liebrich
- Department of Neuroradiology, Medical Faculty Mannheim, University of Heidelberg, Germany
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Tordjman S, Najjar I, Bellissant E, Anderson GM, Barburoth M, Cohen D, Jaafari N, Schischmanoff O, Fagard R, Lagdas E, Kermarrec S, Ribardiere S, Botbol M, Fougerou C, Bronsard G, Vernay-Leconte J. Advances in the research of melatonin in autism spectrum disorders: literature review and new perspectives. Int J Mol Sci 2013; 14:20508-42. [PMID: 24129182 PMCID: PMC3821628 DOI: 10.3390/ijms141020508] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 09/03/2013] [Accepted: 09/13/2013] [Indexed: 12/31/2022] Open
Abstract
Abnormalities in melatonin physiology may be involved or closely linked to the pathophysiology and behavioral expression of autistic disorder, given its role in neurodevelopment and reports of sleep-wake rhythm disturbances, decreased nocturnal melatonin production, and beneficial therapeutic effects of melatonin in individuals with autism. In addition, melatonin, as a pineal gland hormone produced from serotonin, is of special interest in autistic disorder given reported alterations in central and peripheral serotonin neurobiology. More specifically, the role of melatonin in the ontogenetic establishment of circadian rhythms and the synchronization of peripheral oscillators opens interesting perspectives to ascertain better the mechanisms underlying the significant relationship found between lower nocturnal melatonin excretion and increased severity of autistic social communication impairments, especially for verbal communication and social imitative play. In this article, first we review the studies on melatonin levels and the treatment studies of melatonin in autistic disorder. Then, we discuss the relationships between melatonin and autistic behavioral impairments with regard to social communication (verbal and non-verbal communication, social interaction), and repetitive behaviors or interests with difficulties adapting to change. In conclusion, we emphasize that randomized clinical trials in autism spectrum disorders are warranted to establish potential therapeutic efficacy of melatonin for social communication impairments and stereotyped behaviors or interests.
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Affiliation(s)
- Sylvie Tordjman
- Hospital-University Department of Child and Adolescent Psychiatry, Guillaume Régnier Hospital, Rennes 1 University, Rennes 35000, France; E-Mails: (I.N.); (E.L.); (S.K.); (S.R.); (J.V.-L.)
- Laboratory of Psychology of Perception, CNRS UMR 8158, Paris 75270, France; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +33-6-15-38-07-48; Fax: +33-2-99-64-18-07
| | - Imen Najjar
- Hospital-University Department of Child and Adolescent Psychiatry, Guillaume Régnier Hospital, Rennes 1 University, Rennes 35000, France; E-Mails: (I.N.); (E.L.); (S.K.); (S.R.); (J.V.-L.)
| | - Eric Bellissant
- Inserm CIC 0203 Clinical Investigation Centre, University Hospital, Rennes 1 University, Rennes 35033, France; E-Mails: (E.B.); (C.F.)
- Department of Clinical Pharmacology, University Hospital, Rennes 1 University, Rennes 35033, France
| | - George M. Anderson
- Laboratory of Developmental Neurochemistry, Yale Child Study Center, New Haven, CT 06519, USA; E-Mail:
- Department of Laboratory Medicine, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Marianne Barburoth
- Laboratory of Psychology of Perception, CNRS UMR 8158, Paris 75270, France; E-Mail:
| | - David Cohen
- Hospital-University Department of Child and Adolescent Psychiatry, Pitié-SalpétrièreHospital, Paris 6 University, Paris 75013, France; E-Mail:
| | - Nemat Jaafari
- CIC INSERM U 802, CHU de Poitiers, Unité de recherche clinique intersectorielle en psychiatrie du Centre Hospitalier Henri Laborit, Poitiers 86022, France; E-Mail:
| | - Olivier Schischmanoff
- INSERM UMR U978, University of Paris 13, Bobigny 93009, France; E-Mails: (O.S.); (R.F.)
- Laboratoire de Biochimie et Biologie Moléculaire, Hôpital Avicenne, APHP, Bobigny 93009, France
| | - Rémi Fagard
- INSERM UMR U978, University of Paris 13, Bobigny 93009, France; E-Mails: (O.S.); (R.F.)
- Laboratoire de Biochimie et Biologie Moléculaire, Hôpital Avicenne, APHP, Bobigny 93009, France
| | - Enas Lagdas
- Hospital-University Department of Child and Adolescent Psychiatry, Guillaume Régnier Hospital, Rennes 1 University, Rennes 35000, France; E-Mails: (I.N.); (E.L.); (S.K.); (S.R.); (J.V.-L.)
| | - Solenn Kermarrec
- Hospital-University Department of Child and Adolescent Psychiatry, Guillaume Régnier Hospital, Rennes 1 University, Rennes 35000, France; E-Mails: (I.N.); (E.L.); (S.K.); (S.R.); (J.V.-L.)
| | - Sophie Ribardiere
- Hospital-University Department of Child and Adolescent Psychiatry, Guillaume Régnier Hospital, Rennes 1 University, Rennes 35000, France; E-Mails: (I.N.); (E.L.); (S.K.); (S.R.); (J.V.-L.)
| | - Michel Botbol
- Service Hospitalo-Universitaire de Psychiatrie de l’Enfant et de l’Adolescent de Brest, UBO, Brest 29238, France; E-Mail:
| | - Claire Fougerou
- Inserm CIC 0203 Clinical Investigation Centre, University Hospital, Rennes 1 University, Rennes 35033, France; E-Mails: (E.B.); (C.F.)
- Department of Clinical Pharmacology, University Hospital, Rennes 1 University, Rennes 35033, France
| | - Guillaume Bronsard
- Maison Départementale de l’Adolescent et Centre Médico-Psycho-Pédagogique, Conseil Général des Bouches-du-Rhône; Laboratoire de Santé Publique EA3279, Faculté de Médecine de la Timone, Marseille 13256, France; E-Mail:
| | - Julie Vernay-Leconte
- Hospital-University Department of Child and Adolescent Psychiatry, Guillaume Régnier Hospital, Rennes 1 University, Rennes 35000, France; E-Mails: (I.N.); (E.L.); (S.K.); (S.R.); (J.V.-L.)
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Labunets IF. Sex peculiarities of age-related changes in circannual rhythms of pineal gland, hypothalamo-pituitary-adrenal axis, and thymus in healthy subjects. ADVANCES IN GERONTOLOGY 2013. [DOI: 10.1134/s207905701304005x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Choi D. Potency of melatonin in living beings. Dev Reprod 2013; 17:149-77. [PMID: 25949131 PMCID: PMC4282293 DOI: 10.12717/dr.2013.17.3.149] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Revised: 08/01/2013] [Accepted: 08/03/2013] [Indexed: 01/20/2023]
Abstract
Living beings are surrounded by various changes exhibiting periodical rhythms in environment. The environmental changes are imprinted in organisms in various pattern. The phenomena are believed to match the external signal with organisms in order to increase their survival rate. The signals are categorized into circadian, seasonal, and annual cycles. Among the cycles, the circadian rhythm is regarded as the most important factor because its periodicity is in harmony with the levels of melatonin secreted from pineal gland. Melatonin is produced by the absence of light and its presence displays darkness. Melatonin plays various roles in creatures. Therefore, this review is to introduce the diverse potential ability of melatonin in manifold aspects in living organism.
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Affiliation(s)
- Donchan Choi
- Department of Life Science, College of Environmental Sciences, Yong-In University, Yongin 449-714, Republic of Korea
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Bumb JM, Brockmann MA, Groden C, Nolte I. Microstructural analysis of pineal volume using trueFISP imaging. World J Radiol 2013; 5:166-172. [PMID: 23671752 PMCID: PMC3647208 DOI: 10.4329/wjr.v5.i4.166] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 01/11/2013] [Accepted: 02/06/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To determine the spectrum of pineal microstructures (solid/cystic parts) in a large clinical population using a high-resolution 3D-T2-weighted sequence.
METHODS: A total of 347 patients enrolled for cranial magnetic resonance imaging were randomly included in this study. Written informed consent was obtained from all patients. The exclusion criteria were artifacts or mass lesions prohibiting evaluation of the pineal gland in any of the sequences. True-FISP-3D-imaging (1.5-T, isotropic voxel 0.9 mm) was performed in 347 adults (55.4 ± 18.1 years). Pineal gland volume (PGV), cystic volume, and parenchyma volume (cysts excluded) were measured manually.
RESULTS: Overall, 40.3% of pineal glands were cystic. The median PGV was 54.6 mm3 (78.33 ± 89.0 mm3), the median cystic volume was 5.4 mm3 (15.8 ± 37.2 mm3), and the median parenchyma volume was 53.6 mm3 (71.9 ± 66.7 mm3). In cystic glands, the standard deviation of the PGV was substantially higher than in solid glands (98% vs 58% of the mean). PGV declined with age (r = -0.130, P = 0.016).
CONCLUSION: The high interindividual volume variation is mainly related to cysts. Pineal parenchyma volume decreased slightly with age, whereas gender-related effects appear to be negligible.
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Al-Omary FAM. Melatonin: comprehensive profile. PROFILES OF DRUG SUBSTANCES, EXCIPIENTS, AND RELATED METHODOLOGY 2013; 38:159-226. [PMID: 23668405 DOI: 10.1016/b978-0-12-407691-4.00005-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This chapter includes the aspects of melatonin. The drug is synthesized in the pineal gland starting from tryptophane or synthetically by using indole as starting material. Melatonin has been used as an adjunct to interleukin-2 therapy for malignant neoplasms, as contraceptive, in the management of various forms of insomnia, to alleviate jet lag following long flights, and finally as free radical scavenger and hence as an antioxidant and an anti-inflammatory. The chapter discusses the drug metabolism and pharmacokinetics and presents various method of analysis of this drug such as biological analysis, spectroscopic analysis, and chromatographic techniques of separation. It also discusses its physical properties such as solubility characteristics, X-ray powder diffraction pattern, and thermal methods of analysis. The chapter is concluded with a discussion on its biological properties such as activity, toxicity, and safety.
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Affiliation(s)
- Fatmah A M Al-Omary
- Department of Pharmaceutical Chemistry, King Saud University, Riyadh, Kingdom of Saudi Arabia.
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Sarlak G, Jenwitheesuk A, Chetsawang B, Govitrapong P. Effects of Melatonin on Nervous System Aging: Neurogenesis and Neurodegeneration. J Pharmacol Sci 2013; 123:9-24. [DOI: 10.1254/jphs.13r01sr] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Tordjman S, Anderson GM, Bellissant E, Botbol M, Charbuy H, Camus F, Graignic R, Kermarrec S, Fougerou C, Cohen D, Touitou Y. Day and nighttime excretion of 6-sulphatoxymelatonin in adolescents and young adults with autistic disorder. Psychoneuroendocrinology 2012; 37:1990-7. [PMID: 22613035 DOI: 10.1016/j.psyneuen.2012.04.013] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Revised: 04/25/2012] [Accepted: 04/26/2012] [Indexed: 12/11/2022]
Abstract
BACKGROUND Several reports indicate that nocturnal production of melatonin is reduced in autism. Our objective was to examine whether melatonin production is decreased during the whole 24-h cycle, whether the melatonin circadian rhythm is inverted, and whether the reduction in melatonin production is related to the severity of autistic behavioral impairments. METHOD Day and nighttime urinary excretion of 6-sulphatoxymelatonin (6-SM) was examined during a 24-h period in post-pubertal individuals with autism (N=43) and typically developing controls (N=26) matched for age, sex and pubertal stage. RESULTS Low 6-SM excretion (mean ± SEM) was observed in autism, both at daytime (0.16 ± 0.03 vs. 0.36 ± 0.05 μg/h, p<0.01), nighttime (0.52 ± 0.07 vs. 1.14 ± 0.23 μg/h, p<0.05), and during 24h (8.26 ± 1.27 vs. 18.00 ± 3.43 μg/24-h collection, p<0.001). Intra-individual nighttime-daytime differences (delta values) in 6-SM excretion were smaller in individuals with autism than in controls (0.36 ± 0.07 vs. 0.79 ± 0.23 μg/h, p<0.05). Nocturnal excretion of 6-SM was negatively correlated with autism severity in the overall level of verbal language (Spearman ρ=-0.30, p<0.05), imitative social play (Spearman ρ=-0.42, p<0.05), and repetitive use of objects (Spearman ρ=-0.36, p<0.05). CONCLUSION A deficit in melatonin production is present both at daytime and at nighttime in individuals with autism, particularly in the most severely affected individuals. These results highlight interest in potential therapeutic uses of melatonin in autistic disorder, especially in individuals with severe autistic impairment and/or low urinary 6-SM excretion.
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Affiliation(s)
- Sylvie Tordjman
- Hospital-University Department of Child and Adolescent Psychiatry, Guillaume Régnier Hospital, Rennes 1 University, Rennes, France.
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Abstract
This article reviews common sleep disorders in children and pharmacologic options for them. Discussions of pediatric sleep pharmacology typically focus on treatment of insomnia. Although insomnia is a major concern in this population, other conditions of concern in children are presented, such as narcolepsy, parasomnias, restless legs syndrome, and sleep apnea.
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Affiliation(s)
- Rafael Pelayo
- Stanford Sleep Medicine Center, Department of Psychiatry, Stanford University School of Medicine, Redwood City, CA 94063, USA.
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