Siobhan Banks, Christopher W Jones, Mark E McCauley, Jillian Dorrian, Mathias Basner, Greg Maislin, Hans P A Van Dongen, David F Dinges
Chronic sleep restriction, common in today's 24/7 society, causes cumulative neurobehavioural impairment, but the dynamics of the build-up and dissipation of this impairment have not been fully elucidated. We addressed this knowledge gap in a laboratory study involving two, 5-day periods of sleep restriction to 4 hr per day, separated by a 1-day dose-response intervention sleep opportunity. We measured sleep physiological and waking neurobehavioural responses in 70 healthy adults, each randomized to one of seven dose-response intervention sleep doses ranging from 0 to 12 hr, or a non-sleep-restricted control group...
December 7, 2023: Journal of Sleep Research
Fernanda Yanez-Regonesi, Linda Sangalli, Cayla Robinson, Reny de Leeuw
It has been suggested that sleep bruxism may interrupt sleep continuity, hence potentially influencing sleep quality. The aim of this study was to systematically review the relationship between possible, probable, and definite sleep bruxism and sleep quality in otherwise healthy individuals. A systematic search on sleep bruxism and sleep quality was performed in seven databases until 19 December 2022. Eligible articles were screened, and quality assessment was performed via the Joanna Briggs Institute Scale...
December 6, 2023: Journal of Sleep Research
Steven Trawley, Erin Kubilay, Peter G Colman, Melissa H Lee, David N O'Neal, Vijaya Sundararajan, Sara Vogrin, Sybil A McAuley
Hypoglycaemia during sleep is a common and clinically important issue for people living with insulin-treated diabetes. Continuous glucose monitoring devices can help to identify nocturnal hypoglycaemia and inform treatment strategies. However, sleep is generally inferred, with diabetes researchers and physicians using a fixed-overnight period as a proxy for sleep-wake status when analysing and interpretating continuous glucose monitoring data. No study to date has validated such an approach with established sleep measures...
December 5, 2023: Journal of Sleep Research
Giuseppe Plazzi, Fabio Pizza, Michel Lecendreux, Paul Gringras, Lucie Barateau, Oliviero Bruni, Patricia Franco, Alex Iranzo, Poul Jennum, Ramin Khatami, Stine Knudsen-Heier, Silvia Miano, Lino Nobili, Markku Partinen, Paul Reading, Karel Sonka, Attila Szakacs, Massimo Zenti, Ulf Kallweit, Gert J Lammers, Yves Dauvilliers, Claudio L A Bassetti
No abstract text is available yet for this article.
December 4, 2023: Journal of Sleep Research
Laura Stankeviciute, Jonathan Blackman, Núria Tort-Colet, Ana Fernández-Arcos, Gonzalo Sánchez-Benavides, Marc Suárez-Calvet, Álex Iranzo, José Luis Molinuevo, Juan Domingo Gispert, Elizabeth Coulthard, Oriol Grau-Rivera
Sleep disturbances are prevalent in Alzheimer's disease (AD), affecting individuals during its early stages. We investigated associations between subjective sleep measures and cerebrospinal fluid (CSF) biomarkers of AD in adults with mild cognitive symptoms from the European Prevention of Alzheimer's Dementia Longitudinal Cohort Study, considering the influence of memory performance. A total of 442 participants aged >50 years with a Clinical Dementia Rating (CDR) score of 0.5 completed the Pittsburgh Sleep Quality Index questionnaire and underwent neuropsychological assessment, magnetic resonance imaging acquisition, and CSF sampling...
November 30, 2023: Journal of Sleep Research
Andrea López-Cepero, Cynthia M Pérez, Keyla González-Lorenzo, Erick Suárez, Alberto R Ramos, Yanping Teng, M Larissa Avilés-Santa
This study investigated the relationship between obstructive sleep apnea and haemoglobin A1c (HbA1c) among Hispanics/Latinos in the United States and assessed whether this relationship was moderated by glycaemic status. This was a cross-sectional analysis of the Hispanic Community Health Study/Study of Latinos cohort. The sample consisted of 13,394 participants with valid measures of obstructive sleep apnea, HbA1c, and study covariates. Obstructive sleep apnea was assessed with the apnea-hypopnea index and categorised as obstructive sleep apnea if the apnea-hypopnea index was ≥5 events/h...
November 30, 2023: Journal of Sleep Research
Ornpisa Promsod, Weerapat Kositanurit, Tanat Tabtieang, Onanong Kulaputana, Naricha Chirakalwasan, Sirimon Reutrakul, Taninee Sahakitrungruang
This study investigated the impact of comprehensive sleep patterns on glycaemic parameters and endothelial function in adolescents and young adults with type 1 diabetes (T1D). Thirty subjects with type 1 diabetes (aged 13-25) without chronic complications participated. For 1 week, glucose levels were monitored by real-time continuous glucose monitoring (CGM) and sleep was simultaneously assessed by actigraphy. Subjective sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI). Flow-mediated dilatation (FMD) measured endothelial function at the brachial artery...
November 29, 2023: Journal of Sleep Research
Janet M Y Cheung, Hannah Scott, Alexandria Muench, Ronald R Grunstein, Andrew D Krystal, Dieter Riemann, Michael Perlis
Several professional societies have provided recommendations for prescribing medications for insomnia. None has provided an integrative analysis that concurrently quantifies safety and efficacy (e.g., risk-benefit ratios). This represents an important gap for informing clinician decision-making. Accordingly, the aim of the present review is to provide such an analysis for five classes of sleep-promoting medications. Adverse event data values were extracted from the most recent FDA-approved package inserts and converted to an integer before being placebo-adjusted and standardized as a rate per 1000 (AEr)...
November 28, 2023: Journal of Sleep Research
Samantha Bramich, Alastair J Noyce, Anna E King, Sharon L Naismith, Maneesh Varghese Kuruvilla, Simon J G Lewis, Eddy Roccati, Aidan D Bindoff, Kevin J Barnham, Leah C Beauchamp, James C Vickers, Laura Pérez-Carbonell, Jane Alty
Isolated rapid eye movement (REM) sleep behaviour disorder (iRBD) is a sleep disorder that is characterised by dream enactment episodes during REM sleep. It is the strongest known predictor of α-synuclein-related neurodegenerative disease (αNDD), such that >80% of people with iRBD will eventually develop Parkinson's disease, dementia with Lewy bodies, or multiple system atrophy in later life. More research is needed to understand the trajectory of phenoconversion to each αNDD. Only five 'gold standard' prevalence studies of iRBD in older adults have been undertaken previously, with estimates ranging from 0...
November 28, 2023: Journal of Sleep Research
Rachel Sharman, Simon D Kyle, Colin A Espie, Sandra Tamm
Experimental studies suggest that short or disrupted sleep impairs memory consolidation, mood, and perception of emotional stimuli. However, studies have chiefly relied on laboratory-based study designs and small sample sizes. The aim of this fully online and pre-registered study was to investigate the association between sleep and overnight memory consolidation, emotion perception, and affect in a large, self-selected UK sample. A total of 1646 participants (473 completed) took part in an online study, where they completed a declarative (word-pairs) memory task, emotion perception task (valence ratings of images), and rated their affect within 2 h of bed-time...
November 27, 2023: Journal of Sleep Research
Sarah Burkart, Michael W Beets, Christopher D Pfledderer, Lauren von Klinggraeff, Xuanxuan Zhu, Christine W St Laurent, Vincent T van Hees, Bridget Armstrong, R Glenn Weaver, Elizabeth L Adams
We examined the comparability of children's nocturnal sleep estimates using accelerometry data, processed with and without a sleep log. In a secondary analysis, we evaluated factors associated with disagreement between processing approaches. Children (n = 722, age 5-12 years) wore a wrist-based accelerometer for 14 days during Autumn 2020, Spring 2021, and/or Summer 2021. Outcomes included sleep period, duration, wake after sleep onset (WASO), and timing (onset, midpoint, waketime)...
November 27, 2023: Journal of Sleep Research
Jenny Theorell-Haglöw, Xingwu Zhou, Gary Wittert, Robert Adams, Sarah Appleton, Amy Reynolds, Mirjam Ljunggren, Nathaniel Marshall
Obstructive sleep apnea (OSA) has been linked to cancer in several clinical and community-based cohorts. The effect in community-based studies free of clinical referral bias needs to be replicated. In this observational prospective cohort study, we pooled data from three community-based prospective cohorts (Uppsala Sleep and Health in Men cohort [UMEN]; Sleep and health in women [SHE]; Men Androgen Inflammation Lifestyle Environment and Stress Cohort [MAILES]; nTotal  = 1467). All cohorts had objective data on obstructive sleep apnea and registry linkage data on cancer and cancer mortality...
November 21, 2023: Journal of Sleep Research
Yuri Mizuno, Taira Uehara, Yuri Nakamura, Toshiki Okadome, Takahiko Mukaino, Kishin Koh, Yoshihisa Takiyama, Takashi Kanbayashi, Noriko Isobe, Jun-Ichi Kira, Hiroyuki Murai, Hiroshi Shigeto
We report a case of monozygotic twin sisters with hereditary spastic paraplegia type 4 (SPG4) and epilepsy, only one of whom had a diagnosis of narcolepsy type 1 (NT1). The older sister with NT1 exhibited excessive daytime sleepiness, cataplexy, sleep-onset rapid eye movement period in the multiple sleep latency test, and decreased orexin levels in cerebrospinal fluid. Both sisters had HLA-DRB1*15:01-DQB1*06:02 and were further identified to have a novel missense mutation (c.1156A > C, p.Asn386His) in the coding exon of the spastin (SPAST) gene...
November 20, 2023: Journal of Sleep Research
Islay Campbell, Elise Beckers, Roya Sharifpour, Alexandre Berger, Ilenia Paparella, Jose Fermin Balda Aizpurua, Ekaterina Koshmanova, Nasrin Mortazavi, Siya Sherif, Gilles Vandewalle
Light has many non-image-forming functions including modulation of pupil size and stimulation of alertness and cognition. Part of these non-image-forming effects may be mediated by the brainstem locus coeruleus. The processing of sensory inputs can be associated with a transient pupil dilation that is likely driven in part by the phasic activity of the locus coeruleus. In the present study, we aimed to characterise the task-evoked pupil response associated with auditory inputs under different light levels and across two cognitive tasks...
November 16, 2023: Journal of Sleep Research
Jiří Nepožitek, Simona Dostálová, Gabriela Věchetová, Tomáš Sieger, Zuzana Forejtová, Lucia Nováková, Karolína Galušková, Martin Milata, Zsóka Varga, Hiroki Tanaka, Evžen Růžička, Karel Šonka, Mark Edwards, Tereza Serranová
Sleep symptoms, including excessive sleepiness, are frequently reported by patients with functional motor disorders (FMD). We aimed to classify the comorbid sleep disorders in FMD, and to investigate the relationship between subjective sleepiness and objective measures of hypersomnia, comparing them with data from people with central hypersomnia. A total of 37 patients (mean [SD] age 46.4 [11.2] years) with clinically definite FMD, and 17 patients (mean [SD] age 41.1 [11.6] years) with central hypersomnia underwent structured medical and sleep history, neurological examination, polysomnography, multiple sleep latency test (MSLT), and questionnaires assessing sleepiness, fatigue, and depression...
November 15, 2023: Journal of Sleep Research
Kimberly L Sterling, Naomi Alpert, Peter A Cistulli, Jean-Louis Pépin, Suyog More, Kate V Cole, Atul Malhotra
Obstructive sleep apnea (OSA) is a highly prevalent yet underdiagnosed disease that creates a large economic burden on the United States healthcare system. In this retrospective study, we tested the hypothesis that adherence to positive airway pressure (PAP) therapy, the 'gold standard' treatment for OSA, is associated with reduced healthcare resource utilisation and costs. We linked de-identified payer-sourced medical claims and objective PAP usage data for patients newly diagnosed with OSA. Inverse probability of treatment weighting was used to create balanced groups of patients who were either adherent, intermediately adherent, or non-adherent to PAP therapy...
November 14, 2023: Journal of Sleep Research
Kang Min Park, Keun Tae Kim, Dong Ah Lee, Gholam K Motamedi, Yong Won Cho
The combination of brain structural and functional connectivity offers complementary insights into its organisation. Multilayer network analysis explores various relationships across different layers within a single system. We aimed to investigate changes in the structural and functional multilayer network in 69 patients with primary restless legs syndrome (RLS) compared with 50 healthy controls. Participants underwent diffusion tensor imaging (DTI) and resting state-functional magnetic resonance imaging (rs-fMRI) using a three-tesla MRI scanner...
November 14, 2023: Journal of Sleep Research
Jasneek K Chawla, Anne Bernard, Sally Staton, Scott Burgess, Helen Heussler
This paper describes the longitudinal change in sleep, functional, and behavioural characteristics in a cohort of children with Down syndrome, including the effect of sleep interventions in a subset. A prospective longitudinal cohort study was undertaken in children with Down syndrome aged 3-16 years comparing (1) children referred to a tertiary sleep medicine clinic who received sleep hygiene advice and an additional sleep treatment (DSref_I) with (2) children attending the same clinic who only received sleep hygiene advice (DSref_N) and (3) children recruited from the community who, were not receiving any treatment (DScomm)...
November 14, 2023: Journal of Sleep Research
Matiram Pun, Veronica Guadagni, Richard Stewart Longman, Patrick J Hanly, Michael D Hill, Todd J Anderson, David B Hogan, Jean M Rawling, Marc Poulin
Recent studies have found associations between obstructive sleep apnea and cognitive decline. The underlying mechanisms are still unclear. Here, we investigate the associations between changes in micro-architecture, specifically sleep spindles, and cognitive function in community-dwelling middle-aged and older adults, some with obstructive sleep apnea, with a focus on sex differences. A total of 125 voluntary participants (mean age 66.0 ± 6.4 years, 64 females) from a larger cohort (participants of the Brain in Motion Studies I and II) underwent 1 night of in-home polysomnography and a neuropsychological battery (sleep and cognitive testing were conducted within 2 weeks of each other)...
November 14, 2023: Journal of Sleep Research
Maurizio Gorgoni, Giada Giuliani, Mariangela Fratino, Vittorio Di Piero
Several lines of evidence suggest that cluster headache is related to chronobiology and sleep. Nevertheless, the nature of such a relationship is unclear. In this view, the objective evaluation of sleep in cluster headache has strong theoretical and clinical relevance. Here, we provide an in-depth narrative review of the literature on objective sleep assessment in cluster headache. We found that only a small number of studies (N = 12) focused on this topic. The key research aims were directed to assess: (a) the relationship between cluster headache and sleep breathing disorders; (b) the temporal relationship between sleep stages/events and cluster headache attacks; (c) sleep macrostructure in patients with cluster headache...
November 14, 2023: Journal of Sleep Research
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