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Melatonin sleep

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https://www.readbyqxmd.com/read/28648359/evidence-for-the-efficacy-of-melatonin-in-the-treatment-of-primary-adult-sleep-disorders
#1
REVIEW
Fiona Auld, Emily L Maschauer, Ian Morrison, Debra J Skene, Renata L Riha
Melatonin is a physiological hormone involved in sleep timing and is currently used exogenously in the treatment of primary and secondary sleep disorders with empirical evidence of efficacy, but very little evidence from randomised, controlled studies. The aim of this meta-analysis was to assess the evidence base for the therapeutic effects of exogenous melatonin in treating primary sleep disorders. An electronic literature review search of MEDLINE (1950-present) Embase (1980- present), PsycINFO (1987- present), and Scopus (1990- present), along with a hand-searching of key journals was performed in July 2013 and then again in May 2015...
July 20, 2016: Sleep Medicine Reviews
https://www.readbyqxmd.com/read/28638037/-melatonin-in-therapy-of-sleep-disorders-age-related-estrogen-deficiency
#2
I M Madaeva, I N Danusevich, R M Zhambalova, L I Kolesnikova
AIM: To assess quantitative characteristics of sleep in perimenopausal women treated with melatonin in a dose of 3 mg during 3 month. MATERIAL AND METHODS: A study included 21 perimenopausal women with sleep disorders. Seventeen women completed the study. Insomnia Severity Index (ISI), anamnestic and gynecological examinations, polysomnographic monitoring (PSM) were used. All patients received melatonin (melaxen) 30 min before going to bed in a dose of 3 mg daily during 3 month...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28637029/blue-enriched-morning-light-as-a-countermeasure-to-light-at-the-wrong-time-effects-on-cognition-sleepiness-sleep-and-circadian-phase
#3
Mirjam Münch, Claudia Nowozin, Johannes Regente, Frederik Bes, Jan De Zeeuw, Sven Hädel, Amely Wahnschaffe, Dieter Kunz
Light during the day and darkness at night are crucial factors for proper entrainment of the human circadian system to the solar 24-h day. However, modern life and work styles have led to much more time spent indoors, often with lower daytime and higher evening/nighttime light intensity from electrical lighting than outdoors. Whether this has long-term consequences for human health is being currently investigated. We tested if bright blue-enriched morning light over several days could counteract the detrimental effects of inadequate daytime and evening lighting...
June 22, 2017: Neuropsychobiology
https://www.readbyqxmd.com/read/28632163/melatonin-as-a-novel-interventional-candidate-for-fragile-x-syndrome-with-autism-spectrum-disorder-in-humans
#4
REVIEW
Jinyoung Won, Yunho Jin, Jeonghyun Choi, Sookyoung Park, Tae Ho Lee, Sang-Rae Lee, Kyu-Tae Chang, Yonggeun Hong
Fragile X syndrome (FXS) is the most common monogenic form of autism spectrum disorder (ASD). FXS with ASD results from the loss of fragile X mental retardation (fmr) gene products, including fragile X mental retardation protein (FMRP), which triggers a variety of physiological and behavioral abnormalities. This disorder is also correlated with clock components underlying behavioral circadian rhythms and, thus, a mutation of the fmr gene can result in disturbed sleep patterns and altered circadian rhythms. As a result, FXS with ASD individuals may experience dysregulation of melatonin synthesis and alterations in melatonin-dependent signaling pathways that can impair vigilance, learning, and memory abilities, and may be linked to autistic behaviors such as abnormal anxiety responses...
June 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28625682/are-circadian-rhythms-new-pathways-to-understand-autism-spectrum-disorder
#5
M-M Geoffray, A Nicolas, M Speranza, N Georgieff
Autism Spectrum Disorder (ASD) is a frequent neurodevelopmental disorder. ASD is probably the result of intricate interactions between genes and environment altering progressively the development of brain structures and functions. Circadian rhythms are a complex intrinsic timing system composed of almost as many clocks as there are body cells. They regulate a variety of physiological and behavioral processes such as the sleep- wake rhythm. ASD is often associated with sleep disorders and low levels of melatonin...
June 15, 2017: Journal of Physiology, Paris
https://www.readbyqxmd.com/read/28623510/the-implication-of-neuronimmunoendocrine-nie-modulatory-network-in-the-pathophysiologic-process-of-parkinson-s-disease
#6
REVIEW
Yan Shen, Xingfang Guo, Chao Han, Fang Wan, Kai Ma, Shiyi Guo, Luxi Wang, Yun Xia, Ling Liu, Zhicheng Lin, Jinsha Huang, Nian Xiong, Tao Wang
Parkinson's disease (PD) is a progressive neurodegenerative disorder implicitly marked by the substantia nigra dopaminergic neuron degeneration and explicitly characterized by the motor and non-motor symptom complexes. Apart from the nigrostriatal dopamine depletion, the immune and endocrine study findings are also frequently reported, which, in fact, have helped to broaden the symptom spectrum and better explain the pathogenesis and progression of PD. Nevertheless, based on the neural, immune, and endocrine findings presented above, it is still difficult to fully recapitulate the pathophysiologic process of PD...
June 16, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28621018/sleep-structure-in-blindness-is-influenced-by-circadian-desynchrony
#7
Sébrina Aubin, Poul Jennum, Tore Nielsen, Ron Kupers, Maurice Ptito
We examined the structure, duration and quality of sleep, including non-rapid eye movement sleep and rapid eye movement sleep, in 11 blind individuals without conscious light perception and 11 age- and sex-matched sighted controls. Because blindness is associated with a greater incidence of free-running circadian rhythms, we controlled for circadian phase by a measure of melatonin onset timing. When circadian rhythm was entrained and melatonin onset occurred at normal times, sleep structure did not differ between blind and sighted individuals...
June 16, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28613972/night-work-light-exposure-and-melatonin-on-work-days-and-days-off
#8
Stine Daugaard, Anne Helene Garde, Jens Peter Ellekilde Bonde, Jens Christoffersen, Äse Marie Hansen, Jakob Markvart, Vivi Schlünssen, Debra J Skene, Helene Tilma Vistisen, Henrik A Kolstad
We aimed to examine the effects of night work on salivary melatonin concentration during and subsequent to night work and the mediating role of light. We included 254 day workers and 87 night workers who were followed during 322 work days and 301 days off work. Each day was defined as the 24 hour period starting from the beginning of a night shift or from waking in the mornings with day work and days off. Light levels were recorded and synchronized with diary information (start and end of sleep and work). On average, participants provided four saliva samples per day, and these were analyzed for melatonin concentration by liquid chromatography tandem mass spectrometry (LC-MS/MS)...
June 14, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28612993/melatonin-as-a-treatment-for-mood-disorders-a-systematic-review
#9
F De Crescenzo, A Lennox, J C Gibson, J H Cordey, S Stockton, P J Cowen, D J Quested
OBJECTIVE: Melatonin has been widely studied in the treatment of sleep disorders and evidence is accumulating on a possible role for melatonin influencing mood. Our aim was to determine the efficacy and acceptability of melatonin for mood disorders. METHOD: We conducted a comprehensive systematic review of randomized clinical trials on patients with mood disorders, comparing melatonin to placebo. RESULTS: Eight clinical trials were included; one study in bipolar, three in unipolar depression and four in seasonal affective disorder...
June 14, 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28607474/irregular-sleep-wake-patterns-are-associated-with-poorer-academic-performance-and-delayed-circadian-and-sleep-wake-timing
#10
Andrew J K Phillips, William M Clerx, Conor S O'Brien, Akane Sano, Laura K Barger, Rosalind W Picard, Steven W Lockley, Elizabeth B Klerman, Charles A Czeisler
The association of irregular sleep schedules with circadian timing and academic performance has not been systematically examined. We studied 61 undergraduates for 30 days using sleep diaries, and quantified sleep regularity using a novel metric, the sleep regularity index (SRI). In the most and least regular quintiles, circadian phase and light exposure were assessed using salivary dim-light melatonin onset (DLMO) and wrist-worn photometry, respectively. DLMO occurred later (00:08 ± 1:54 vs. 21:32 ± 1:48; p < 0...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28602529/-the-use-of-social-media-modifies-teenagers-sleep-related-behavior
#11
S Royant-Parola, V Londe, S Tréhout, S Hartley
OBJECTIVE: Modification of sleep behaviors in teenagers has been observed over the past 30years with a reduction in overall sleep time and an increasing number of teenagers suffering from sleep deprivation. Sleep deprivation is linked to physical problems such as obesity but also to change in performance at school and mood disorders. Changes have been associated with the use of screens, cell phones, Internet and social media. Use of screens has been shown to delay sleep onset and melatonin secretion and stimulation of wake systems by interaction with social media may exacerbate these effects...
June 8, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28597081/effects-of-bright-and-blue-light-on-acoustic-reaction-time-and-maximum-handgrip-strength-in-male-athletes-a-randomized-controlled-trial
#12
Raphael Knaier, Juliane Schäfer, Anja Rossmeissl, Christopher Klenk, Henner Hanssen, Christoph Höchsmann, Christian Cajochen, Arno Schmidt-Trucksäss
PURPOSE: To assess which type of evening light exposure has the greatest effect on reaction time and maximum handgrip strength. These were pre-specified secondary outcomes in a trial which primarily investigated the influence of light on cycling performance. METHODS: Seventy-four male athletes were allocated at random to either bright light (BRIGHT), monochromatic blue light (BLUE), or a control condition (CONTROL). Light exposure lasted for 60 min and started 17 h after the individual midpoint of sleep...
June 9, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28596466/-clocks-behavior-and-cognition
#13
Akinori Futamura, Azusa Shiromaru, Takeshi Kuroda, Motoyasu Honma, Ryuta Kinno, Kenjiro Ono, Mitsuru Kawamura
The nerve center responsible for controlling our circadian rhythm is located in a cluster of cells known as the suprachiasmatic nucleus in the hypothalamus. Various physiological functions such as sleep, arousal, blood pressure, body temperature, and hormone secretion are regulated in a 24-hour rhythm by this circuit. Somatic cells of other organs have a peripheral clock gene and by synchronizing the rhythm of the central and peripheral clocks, it is possible to live a healthy life. Due to aging and degenerative disease, circadian rhythm gradually collapses...
June 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28587149/suppression-of-osteoclastogenesis-by-melatonin-a-melatonin-receptor-independent-action
#14
Hyung Joon Kim, Ha Jin Kim, Moon-Kyoung Bae, Yong-Deok Kim
In vertebrates, melatonin is primarily secreted from the pineal gland but it affects various biological processes including the sleep-wake cycle, vasomotor control, immune system and bone homeostasis. Melatonin has been known to promote osteoblast differentiation and bone maturation, but a direct role of melatonin on osteoclast differentiation is still elusive. The present study investigated the effect of melatonin on the differentiation of macrophages to osteoclasts. The presence of melatonin significantly reduced receptor activator of nuclear factor κB ligand (RANKL)-induced osteoclastogenesis and the siRNA-mediated knockdown of the melatonin receptor failed to overcome the anti-osteoclastogenic effect of melatonin...
May 26, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28584667/melatonin-secretion-pattern-in-critically-ill-patients-a-pilot-descriptive-study
#15
Yuliya Boyko, René Holst, Poul Jennum, Helle Oerding, Miki Nikolic, Palle Toft
Critically ill patients have abnormal circadian and sleep homeostasis. This may be associated with higher morbidity and mortality. The aims of this pilot study were (1) to describe melatonin secretion in conscious critically ill mechanically ventilated patients and (2) to describe whether melatonin secretion and sleep patterns differed in these patients with and without remifentanil infusion. Eight patients were included. Blood-melatonin was taken every 4th hour, and polysomnography was carried out continually during a 48-hour period...
2017: Critical Care Research and Practice
https://www.readbyqxmd.com/read/28579782/effect-of-aripiprazole-on-non-24-hour-sleep-wake-rhythm-disorder-comorbid-with-major-depressive-disorder-a-case-report
#16
Kentaro Matsui, Yoshikazu Takaesu, Takeshi Inoue, Ken Inada, Katsuji Nishimura
BACKGROUND: Patients with non-24-hour sleep-wake rhythm disorder (N24SWD) exhibit a sleep pattern that is asynchronous with the external light-dark cycle, typically involving a cycling, relapsing-remitting pattern of sleep disturbances, including nighttime insomnia and daytime sleepiness. Here, we report the case of a patient with N24SWD comorbid with major depressive disorder, who was successfully treated with a low dose of aripiprazole. CASE PRESENTATION: A 47-year-old female presented with an 8-year complaint of difficulty falling asleep and waking up in the morning...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28578930/meal-timing-regulates-the-human-circadian-system
#17
Sophie M T Wehrens, Skevoulla Christou, Cheryl Isherwood, Benita Middleton, Michelle A Gibbs, Simon N Archer, Debra J Skene, Jonathan D Johnston
Circadian rhythms, metabolism, and nutrition are intimately linked [1, 2], although effects of meal timing on the human circadian system are poorly understood. We investigated the effect of a 5-hr delay in meals on markers of the human master clock and multiple peripheral circadian rhythms. Ten healthy young men undertook a 13-day laboratory protocol. Three meals (breakfast, lunch, dinner) were given at 5-hr intervals, beginning either 0.5 (early) or 5.5 (late) hr after wake. Participants were acclimated to early meals and then switched to late meals for 6 days...
June 19, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28569119/skin-temperature-rhythms-in-humans-respond-to-changes-in-the-timing-of-sleep-and-light
#18
Marc Cuesta, Philippe Boudreau, Nicolas Cermakian, Diane B Boivin
Body temperature is known to vary with circadian phase and to be influenced by factors that can mask its circadian expression. We wanted to test whether skin temperature rhythms were sensitive to an abrupt shift of the sleep schedule and to the resetting effects of light. Nineteen healthy subjects spent 6 days in time isolation and underwent a simulated night-shift procedure. They were assigned to either a control group ( n = 10) or bright light group ( n = 9) and measurements were taken under a baseline day-oriented schedule and during the 4(th) cycle of a night-oriented schedule...
June 2017: Journal of Biological Rhythms
https://www.readbyqxmd.com/read/28567500/treatment-of-sleep-dysfunction-in-parkinson-s-disease
#19
REVIEW
Amy W Amara, Lana M Chahine, Aleksandar Videnovic
Impaired sleep and alertness affect the majority of Parkinson's disease (PD) patients, negatively impacting safety and quality of life. The etiology of impaired sleep-wake cycle in PD is multifactorial and encompasses medication side effects, nocturnal PD motor symptoms, and presence of co-existent sleep and neuropsychiatric disorders. The primary neurodegenerative process of PD involves brain regions that regulate the sleep-wake cycle, such as brainstem and hypothalamic nuclei. Sleep disorders in PD include insomnia, REM sleep behavior disorder (RBD), sleep disordered breathing (SDB), restless legs syndrome (RLS), and circadian disruption...
July 2017: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/28559974/melatonin-prevents-sleep-deprivation-associated-anxiety-like-behavior-in-rats-role-of-oxidative-stress-and-balance-between-gabaergic-and-glutamatergic-transmission
#20
Lei Zhang, Hong-Liang Guo, Hu-Qin Zhang, Tian-Qi Xu, Bing He, Zhen-Hai Wang, Yi-Peng Yang, Xiao-Dan Tang, Peng Zhang, Fang-E Liu
Sleep deprivation (SD) has been shown to induce anxiety-like behavior. Melatonin, an endogenous potent antioxidant, protects neurons from oxidative stress in many disease models. Here we investigated the effect of melatonin against SD-induced anxiety-like behavior and attempted to define the possible mechanisms involved. SD was induced in rats using modified multiple platform model. Melatonin (15 mg/kg) was administered to the rats via intraperitoneal injection. The elevated plus maze test, open field test and light-dark exploration were used to evaluate anxiety-like behavior...
2017: American Journal of Translational Research
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