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Zhang Z, Carlson D, Gilbert-Diamond D, Emond JA. Associations between sleep and appetitive traits in higher-income preschoolers: A six-month study. Appetite 2024; 196:107254. [PMID: 38346496 DOI: 10.1016/j.appet.2024.107254] [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: 08/24/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND Short sleep is consistently linked with childhood obesity, possibly via disrupting appetite hormones and increasing food responsiveness. Few studies have objectively examined this association in early childhood. OBJECTIVE To evaluate associations of sleep quantity and quality with child appetitive traits and eating in the absence of hunger (EAH) in a higher-income cohort of 86 preschool-age children (age 4.0 ± 0.8 years; 42% female; 93% non-Hispanic white, Northern New England, US). METHODS Children's sleep duration and quality were assessed via parent report (Children's Sleep Habits Questionnaire, CSHQ) at baseline and 6-month follow-up and via accelerometry at baseline. Parents also completed the Child Eating Behaviors Questionnaire to assess the child's appetitive traits. EAH, an objective measure of overeating, was observed at baseline during an in-person visit. Associations between sleep measures and appetitive traits were examined with linear mixed-effect or linear regression models, as appropriate, adjusting for child age, sex, and household income. RESULTS Shorter sleep duration per parent report was associated with less satiety responsiveness (standardized ß = 0.14, 95% CI: 0.01, 0.26; p = 0.03). Further, satiety responsiveness was inversely related to EAH (Pearson's r = -0.35, p = 0.02). No associations were found between accelerometer-measured sleep parameters and appetitive traits, and no sleep measures were related to EAH. CONCLUSIONS Shorter usual sleep, per the parent report, was cross-sectionally associated with reduced satiety responsiveness in this sample of higher-income preschoolers. Future studies should consider whether socioeconomic status may modify the impact of poor sleep on appetitive traits in early childhood.
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Affiliation(s)
- Zhuoya Zhang
- Department of Epidemiology, Geisel School of Medicine at Dartmouth College, NH 03756, USA.
| | - Delaina Carlson
- Department of Epidemiology, Geisel School of Medicine at Dartmouth College, NH 03756, USA
| | - Diane Gilbert-Diamond
- Department of Epidemiology, Geisel School of Medicine at Dartmouth College, NH 03756, USA; Department of Pediatrics, Geisel School of Medicine at Dartmouth College, NH 03756, USA; Department of Medicine, Geisel School of Medicine at Dartmouth College, NH, 03756, USA
| | - Jennifer A Emond
- Department of Pediatrics, Geisel School of Medicine at Dartmouth College, NH 03756, USA; Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth College, NH, 03756, USA
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Vitale JA, Banfi G, Viganò M, Negrini F. How do patients sleep after orthopaedic surgery? Changes in objective sleep parameters and pain in hospitalized patients undergoing hip and knee arthroplasty. INTERNATIONAL ORTHOPAEDICS 2023:10.1007/s00264-023-05862-2. [PMID: 37300562 PMCID: PMC10344973 DOI: 10.1007/s00264-023-05862-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
PURPOSE The aim of this observational cohort study was to assess actigraphy-based sleep characteristics and pain scores in patients undergoing knee or hip joint replacement and hospitalized for ten days after surgery. METHODS N=20 subjects (mean age: 64.0±10.39 years old) wore the Actiwatch 2 actigraph (Philips Respironics, USA) to record sleep parameters for 11 consecutive days. Subjective scores of pain, by a visual analog scale (VAS), were constantly monitored and the following evaluation time points were considered for the analysis: pre-surgery (PRE), the first (POST1), the fourth (POST4), and the tenth day (POST10) after surgery. RESULTS Sleep quantity and timing parameters did not differ from PRE to POST10, during the hospitalization whereas sleep efficiency and immobility time significantly decreased at POST1 compared to PRE by 10.8% (p=0.003; ES: 0.9, moderate) and 9.4% (p=0.005; ES: 0.86, moderate) respectively, and sleep latency increased by 18.7 min (+320%) at POST1 compared to PRE (p=0.046; ES: 0.70, moderate). Overall, all sleep quality parameters showed a trend of constant improvement from POST1 to POST10. VAS scores were higher in the first day post-surgery (4.58 ± 2.46; p=0.0011 and ES: 1.40, large) compared to POST10 (1.68 ± 1.58). During the time, mean VAS showed significant negative correlations with mean sleep efficiency (r = -0.71; p=0.021). CONCLUSION Sleep quantity and timing parameters were stable during the entire hospitalization whereas sleep quality parameters significantly worsened the first night after surgery compared to the pre-surgery night. High scores of pain were associated with lower overall sleep quality.
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Affiliation(s)
| | - Giuseppe Banfi
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Marco Viganò
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Francesco Negrini
- Istituti Clinici Scientifici Maugeri IRCCS, Tradate, Varese, Italy.
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy.
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Idalino SCC, Canever JB, Cândido LM, Wagner KJP, de Souza Moreira B, Danielewicz AL, de Avelar NCP. Association between sleep problems and multimorbidity patterns in older adults. BMC Public Health 2023; 23:978. [PMID: 37237275 DOI: 10.1186/s12889-023-15965-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 05/23/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Sleep problems are frequent in older adults and are associated with chronic diseases. However, the association with multimorbidity patterns is still unknown. Considering the negative impacts that multimorbidity patterns can have on older adults' life, knowledge of this association can help in the screening and early identification of older adults with sleep problems. The objective was to verify the association between sleep problems and multimorbidity patterns in older Brazilian adults. METHODS This was a cross-sectional study conducted with data from 22,728 community-dwelling older adults from the 2019 National Health Survey. The exposure variable was self-reported sleep problems (yes/no). The study outcomes were: multimorbidity patterns, analyzed by self-report of the coexistence of two or more chronic diseases with similar clinical characteristics: (1) cardiopulmonary; (2) vascular-metabolic; (3) musculoskeletal; (4) coexisting patterns. RESULTS Older adults with sleep problems had 1.34 (95%CI: 1.21; 1.48), 1.62 (95%CI: 1.15; 2.28), 1.64 (95%CI: 1.39; 1.93), and 1.88 (95%CI: 1.52; 2.33) greater odds of presenting vascular-metabolic, cardiopulmonary, musculoskeletal, and coexisting patterns, respectively. CONCLUSIONS These results suggest that public health programs aimed at preventing sleep problems in older adults are essential to reduce possible adverse health outcomes, including multimorbidity patterns and their negative consequences for older adults' health.
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Affiliation(s)
- Stefany Cristina Claudino Idalino
- Laboratory of Aging, Resources and Rheumatology, Department of Health Sciences, Federal University of Santa Catarina (UFSC), Campus Araranguá, Rod. Governador Jorge Lacerda, Urussanguinha, Araranguá, 3201, 88906-072, Santa Catarina, Brazil
| | - Jaquelini Betta Canever
- Laboratory of Aging, Resources and Rheumatology, Department of Health Sciences, Federal University of Santa Catarina (UFSC), Campus Araranguá, Rod. Governador Jorge Lacerda, Urussanguinha, Araranguá, 3201, 88906-072, Santa Catarina, Brazil
- Post-Graduate Program in Neuroscience, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Letícia Martins Cândido
- Laboratory of Aging, Resources and Rheumatology, Department of Health Sciences, Federal University of Santa Catarina (UFSC), Campus Araranguá, Rod. Governador Jorge Lacerda, Urussanguinha, Araranguá, 3201, 88906-072, Santa Catarina, Brazil
| | - Katia Jakovljevic Pudla Wagner
- Federal University of Santa Catarina (UFSC), Campus Curitibanos, Rod. Ulysses Gaboardi, 300, Curitibanos, 89520-000, Santa Catarina, Brazil
| | - Bruno de Souza Moreira
- Center for Studies in Public Health and Aging, Federal University of Minas Gerais (UFMG), Av. Alfredo Balena, 190, Santa Efigênia, Belo Horizonte, 30130-100, Minas Gerais, Brazil
| | - Ana Lúcia Danielewicz
- Laboratory of Aging, Resources and Rheumatology, Department of Health Sciences, Federal University of Santa Catarina (UFSC), Campus Araranguá, Rod. Governador Jorge Lacerda, Urussanguinha, Araranguá, 3201, 88906-072, Santa Catarina, Brazil
| | - Núbia Carelli Pereira de Avelar
- Laboratory of Aging, Resources and Rheumatology, Department of Health Sciences, Federal University of Santa Catarina (UFSC), Campus Araranguá, Rod. Governador Jorge Lacerda, Urussanguinha, Araranguá, 3201, 88906-072, Santa Catarina, Brazil.
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Keshet A, Shilo S, Godneva A, Talmor-Barkan Y, Aviv Y, Segal E, Rossman H. CGMap: Characterizing continuous glucose monitor data in thousands of non-diabetic individuals. Cell Metab 2023; 35:758-769.e3. [PMID: 37080199 DOI: 10.1016/j.cmet.2023.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/27/2023] [Accepted: 04/04/2023] [Indexed: 04/22/2023]
Abstract
Despite its rising prevalence, diabetes diagnosis still relies on measures from blood tests. Technological advances in continuous glucose monitoring (CGM) devices introduce a potential tool to expand our understanding of glucose control and variability in people with and without diabetes. Yet CGM data have not been characterized in large-scale healthy cohorts, creating a lack of reference for CGM data research. Here we present CGMap, a characterization of CGM data collected from over 7,000 non-diabetic individuals, aged 40-70 years, between 2019 and 2022. We provide reference values of key CGM-derived clinical measures that can serve as a tool for future CGM research. We further explored the relationship between CGM-derived measures and diabetes-related clinical parameters, uncovering several significant relationships, including associations of mean blood glucose with measures from fundus imaging and sleep monitoring. These findings offer novel research directions for understanding the influence of glucose levels on various aspects of human health.
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Affiliation(s)
- Ayya Keshet
- Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Smadar Shilo
- Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel; The Jesse and Sara Lea Shafer Institute of Endocrinology and Diabetes, National Center for Childhood Diabetes, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
| | - Anastasia Godneva
- Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Yeela Talmor-Barkan
- Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel-Aviv, Israel; Department of Cardiology, Rabin Medical Center, Petah-Tikva, Israel
| | - Yaron Aviv
- Sackler Faculty of Medicine, Tel Aviv University, Tel-Aviv, Israel; Department of Cardiology, Rabin Medical Center, Petah-Tikva, Israel
| | - Eran Segal
- Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
| | - Hagai Rossman
- Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel; Pheno.AI, Tel-Aviv, Israel.
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Pathogenesis of Dementia. Int J Mol Sci 2022; 24:ijms24010543. [PMID: 36613988 PMCID: PMC9820433 DOI: 10.3390/ijms24010543] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/22/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022] Open
Abstract
According to Alzheimer's Disease International, 55 million people worldwide are living with dementia. Dementia is a disorder that manifests as a set of related symptoms, which usually result from the brain being damaged by injury or disease. The symptoms involve progressive impairments in memory, thinking, and behavior, usually accompanied by emotional problems, difficulties with language, and decreased motivation. The most common variant of dementia is Alzheimer's disease with symptoms dominated by cognitive disorders, particularly memory loss, impaired personality, and judgmental disorders. So far, all attempts to treat dementias by removing their symptoms rather than their causes have failed. Therefore, in the presented narrative review, I will attempt to explain the etiology of dementia and Alzheimer's disease from the perspective of energy and cognitive metabolism dysfunction in an aging brain. I hope that this perspective, though perhaps too simplified, will bring us closer to the essence of aging-related neurodegenerative disorders and will soon allow us to develop new preventive/therapeutic strategies in our struggle with dementia, Alzheimer's disease, and Parkinson's disease.
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Peters A, Sprengell M, Kubera B. The principle of 'brain energy on demand' and its predictive power for stress, sleep, stroke, obesity and diabetes. Neurosci Biobehav Rev 2022; 141:104847. [PMID: 36067964 DOI: 10.1016/j.neubiorev.2022.104847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 08/10/2022] [Accepted: 08/26/2022] [Indexed: 12/01/2022]
Abstract
Does the brain actively draw energy from the body when needed? There are different schools of thought regarding energy metabolism. In this study, the various theoretical models are classified into one of two categories: (1) conceptualizations of the brain as being purely passively supplied, which we call 'P-models,' and (2) models understanding the brain as not only passively receiving energy but also actively procuring energy for itself on demand, which we call 'A-models.' One prominent example of such theories making use of an A-model is the selfish-brain theory. The ability to make predictions was compared between the A- and P-models. A-models were able to predict and coherently explain all data examined, which included stress, sleep, caloric restriction, stroke, type-1-diabetes mellitus, obesity, and type-2-diabetes, whereas the predictions of P-models failed in most cases. The strength of the evidence supporting A-models is based on the coherence of accurate predictions across a spectrum of metabolic states. The theory test conducted here speaks to a brain that pulls its energy from the body on-demand.
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Affiliation(s)
- Achim Peters
- Medical Clinic 1, Center of Brain, Behavior and Metabolism, University of Lübeck, Ratzeburger Allee 160, D-23538 Lübeck, Germany.
| | - Marie Sprengell
- Medical Clinic 1, Center of Brain, Behavior and Metabolism, University of Lübeck, Ratzeburger Allee 160, D-23538 Lübeck, Germany
| | - Britta Kubera
- Medical Clinic 1, Center of Brain, Behavior and Metabolism, University of Lübeck, Ratzeburger Allee 160, D-23538 Lübeck, Germany
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Benton D, Bloxham A, Gaylor C, Brennan A, Young HA. Carbohydrate and sleep: An evaluation of putative mechanisms. Front Nutr 2022; 9:933898. [PMID: 36211524 PMCID: PMC9532617 DOI: 10.3389/fnut.2022.933898] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Sleep problems are extremely common in industrialized countries and the possibility that diet might be used to improve sleep has been considered. The topic has been reviewed many times, resulting in the frequent suggestion that carbohydrate increases the uptake of tryptophan by the brain, where it is metabolized into serotonin and melatonin, with the suggestion that this improves sleep. An alternative mechanism was proposed based on animal literature that has been largely ignored by those considering diet and sleep. The hypothesis was that, as in the hypothalamus there are glucose-sensing neurons associated with the sleep-wake cycle, we should consider the impact of carbohydrate-induced changes in the level of blood glucose. A meta-analysis found that after consuming a lower amount of carbohydrate, more time was spent in slow-wave sleep (SWS) and less in rapid-eye-movement sleep. As the credibility of alternative mechanisms has tended not to have been critically evaluated, they were considered by examining their biochemical, nutritional, and pharmacological plausibility. Although high carbohydrate consumption can increase the uptake of tryptophan by the brain, it only occurs with such low levels of protein that the mechanism is not relevant to a normal diet. After entering the brain tryptophan is converted to serotonin, a neurotransmitter known to influence so many different aspects of sleep and wakefulness, that it is not reasonable to expect a uniform improvement in sleep. Some serotonin is converted to melatonin, although the exogenous dose of melatonin needed to influence sleep cannot be credibly provided by the diet. This review was registered in the International Prospective Register of Systematic Reviews (CRD42020223560).
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Bowen PG, Affuso O, Opoku-Agyeman W, Mixon VR, Clay OJ. Texting Older Sisters to Step to Manage Obesity in Older Black Women: A Feasibility Study. Am J Prev Med 2022; 63:S56-S66. [PMID: 35725141 DOI: 10.1016/j.amepre.2022.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 03/05/2022] [Accepted: 03/24/2022] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Black women are disproportionately classified as overweight or obese and physically inactive. Social support and culturally relevant and age-appropriate physical active interventions are needed to reduce inactivity and to prevent weight gain among this group. Mobile-health text messages have shown to be an acceptable, feasible and interactive way to promote physical activity among older Black women. STUDY DESIGN This feasibility, 12-week RCT, deployed between August 2020 and December 2020, aimed to determine the feasibility and effectiveness of a mobile health intervention that focused on increasing physical activity behaviors among community-dwelling, older Black women who were age ≥60 years and classified with overweight or obesity. SETTING/PARTICIPANTS Community-dwelling, older Black women. INTERVENTION The intervention group received physical activity promotion text messages daily, whereas the control group received 1 neutral message related to general health information weekly. MEASURES At baseline and post intervention assessments, researchers obtained HbA1c levels, weight, BMI, waist circumference, and questionnaires related to physical activity. Post-intervention satisfaction was also collected through a survey. RESULTS The intervention group had an average increase of approximately 700 steps per day more than the control group, lost more waist circumference inches (2.2) than the controls, and averaged more pound loss (2.5) than controls. The control group had a greater HbA1c reduction, whereas the intervention group remained stable. The text messages were 100% readable, and 95% of the women stated the study was motivational. Overall, 12% of participants suggested that future studies should include more in-person social support, and 8.3% said that daily text messages were too much. CONCLUSIONS Findings suggest that a mobile health physical activity intervention that uses self-monitoring techniques in conjunction with motivational cues, is an acceptable delivery method and a promising strategy to increase physical activity behaviors among this population, which is feasible, potentially efficacious, and low cost. TRIAL REGISTRATION NCT04114071.
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Affiliation(s)
- Pamela G Bowen
- Nursing - Acute, Chronic & Continuing Care Department, School of Nursing, The University of Alabama at Birmingham, Birmingham, Alabama.
| | - Olivia Affuso
- School of Public Health, The University of Alabama at Birmingham, Birmingham, Alabama
| | - William Opoku-Agyeman
- School of Health and Applied Human Sciences, College of Health & Human Services, University of North Carolina Wilmington, Wilmington, North Carolina
| | - Veronica R Mixon
- Department of Psychology, Florida Agricultural and Mechanical University, Tallahassee, Florida
| | - Olivio J Clay
- Department of Psychology, College of Arts and Sciences, The University of Alabama at Birmingham, Birmingham, Alabama
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Circadian Clocks, Sleep, and Metabolism. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021. [PMID: 34773224 DOI: 10.1007/978-3-030-81147-1_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
A molecular circadian clock exists not only in the brain, but also in most cells of the body. Research over the past two decades has demonstrated that it directs daily rhythmicity of nearly every aspect of metabolism. It also consolidates sleep-wake behavior each day into an activity/feeding period and a sleep/fasting period. Otherwise, sleep-wake states are mostly controlled by hypothalamic and thalamic regulatory circuits in the brain that direct overall brain state. Recent evidence suggests that hypothalamic control of appetite and metabolism may be concomitant with sleep-wake regulation, and even share the same control centers. Thus, circadian control of metabolic pathways might be overlaid by sleep-wake control of the same pathways, providing a flexible and redundant system to modify metabolism according to both activity and environment.
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Nowak N, Gaisl T, Miladinovic D, Marcinkevics R, Osswald M, Bauer S, Buhmann J, Zenobi R, Sinues P, Brown SA, Kohler M. Rapid and reversible control of human metabolism by individual sleep states. Cell Rep 2021; 37:109903. [PMID: 34706242 DOI: 10.1016/j.celrep.2021.109903] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 09/14/2021] [Accepted: 10/06/2021] [Indexed: 11/18/2022] Open
Abstract
Sleep is crucial to restore body functions and metabolism across nearly all tissues and cells, and sleep restriction is linked to various metabolic dysfunctions in humans. Using exhaled breath analysis by secondary electrospray ionization high-resolution mass spectrometry, we measured the human exhaled metabolome at 10-s resolution across a night of sleep in combination with conventional polysomnography. Our subsequent analysis of almost 2,000 metabolite features demonstrates rapid, reversible control of major metabolic pathways by the individual vigilance states. Within this framework, whereas a switch to wake reduces fatty acid oxidation, a switch to slow-wave sleep increases it, and the transition to rapid eye movement sleep results in elevation of tricarboxylic acid (TCA) cycle intermediates. Thus, in addition to daily regulation of metabolism, there exists a surprising and complex underlying orchestration across sleep and wake. Both likely play an important role in optimizing metabolic circuits for human performance and health.
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Affiliation(s)
- Nora Nowak
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland; Department of Pulmonology, University Hospital Zurich, Zurich 8091, Switzerland; Institute of Pharmacology and Toxicology, University of Zurich, Zurich 8057, Switzerland
| | - Thomas Gaisl
- Department of Pulmonology, University Hospital Zurich, Zurich 8091, Switzerland
| | | | | | - Martin Osswald
- Department of Pulmonology, University Hospital Zurich, Zurich 8091, Switzerland
| | - Stefan Bauer
- Department of Computer Science, ETH Zurich, Zurich 8092, Switzerland
| | - Joachim Buhmann
- Department of Computer Science, ETH Zurich, Zurich 8092, Switzerland
| | - Renato Zenobi
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland
| | - Pablo Sinues
- University Children's Hospital Basel, Basel 4056, Switzerland; Department of Biomedical Engineering, University of Basel, Allschwil 4123, Switzerland
| | - Steven A Brown
- Institute of Pharmacology and Toxicology, University of Zurich, Zurich 8057, Switzerland.
| | - Malcolm Kohler
- Department of Pulmonology, University Hospital Zurich, Zurich 8091, Switzerland.
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García-Aviles JE, Méndez-Hernández R, Guzmán-Ruiz MA, Cruz M, Guerrero-Vargas NN, Velázquez-Moctezuma J, Hurtado-Alvarado G. Metabolic Disturbances Induced by Sleep Restriction as Potential Triggers for Alzheimer's Disease. Front Integr Neurosci 2021; 15:722523. [PMID: 34539357 PMCID: PMC8447653 DOI: 10.3389/fnint.2021.722523] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/26/2021] [Indexed: 01/15/2023] Open
Abstract
Sleep has a major role in learning, memory consolidation, and metabolic function. Although it is known that sleep restriction increases the accumulation of amyloid β peptide (Aβ) and the risk to develop Alzheimer's disease (AD), the mechanism behind these effects remains unknown. In this review, we discuss how chronic sleep restriction induces metabolic and cognitive impairments that could result in the development of AD in late life. Here, we integrate evidence regarding mechanisms whereby metabolic signaling becomes disturbed after short or chronic sleep restriction in the context of cognitive impairment, particularly in the accumulation of Aβ in the brain. We also discuss the role of the blood-brain barrier in sleep restriction with an emphasis on the transport of metabolic signals into the brain and Aβ clearance. This review presents the unexplored possibility that the alteration of peripheral metabolic signals induced by sleep restriction, especially insulin resistance, is responsible for cognitive deficit and, subsequently, implicated in AD development.
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Affiliation(s)
- Jesús Enrique García-Aviles
- Area of Neurosciences, Biology of Reproduction Department, Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico City, Mexico.,Posgrado en Biología Experimental, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico City, Mexico
| | - Rebeca Méndez-Hernández
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, Mexico
| | - Mara A Guzmán-Ruiz
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Miguel Cruz
- Instituto Mexicano del Seguro Social, Centro Médico Nacional Siglo XXI, Hospital de Especialidades, Unidad de Investigación Médica en Bioquímica, Mexico City, Mexico
| | - Natalí N Guerrero-Vargas
- Departamento de Anatomía, Facultad de Medicina, Universidad Nacional Autónoma de México, México City, Mexico
| | - Javier Velázquez-Moctezuma
- Area of Neurosciences, Biology of Reproduction Department, Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico City, Mexico
| | - Gabriela Hurtado-Alvarado
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, Mexico
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Notkin GT, Kristensen PL, Pedersen-Bjergaard U, Jensen AK, Molsted S. Reproducibility of Glucose Fluctuations Induced by Moderate Intensity Cycling Exercise in Persons with Type 1 Diabetes. J Diabetes Res 2021; 2021:6640600. [PMID: 33860058 PMCID: PMC8026306 DOI: 10.1155/2021/6640600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/02/2021] [Accepted: 03/22/2021] [Indexed: 01/10/2023] Open
Abstract
AIMS The purpose was to assess the reproducibility of glucose changes during three sessions of standardized moderate intensity continuous training of cycling on an individual level in people with type 1 diabetes. METHODS Twelve adults (six females) with type 1 diabetes performed three test sessions on an ergometer bicycle (30 min, 67% of predicted heart rate) on three different days. The participants were 36.5 (26.6-45.5) (median, IQR) years old, and their HbA1c was 65 ± 15 mmol/mol (mean ± SD). Two hours before the tests, the participants had a standard meal. Interstitial glucose (IG) and capillary glucose (CG) were measured using an iPro2 Medtronic continuous glucose monitor and the Bayer Contour XT-device, respectively. Prior to the test sessions, resting heart rate was measured using a digital blood pressure monitor to estimate the desired intensity of the exercise. RESULTS The average within-participant relationship between the average slope in glucose during sessions 2 and 1 was in IG -0.29 (95% CI -1.11; 0.58) and in CG -0.04 (-0.68; 0.77). Between sessions 3 and 2, IG is 0.18 (-0.27; 0.64) and in CG 0.13 (-0.25; 0.55). Between sessions 3 and 1, IG was 0.06 (-0.57; 0.71) and in CG 0.06 (-0.39; 0.52). The results indicate low reproducibility at participant levels and remained unchanged after adjustment for baseline glucose values. CONCLUSION On an individual level, the glucose declines during three standardized sessions of PA were not associated with identical responses of the measured IG and CG levels. An overall anticipated decline of glucose concentrations was found in the moderate intensity cycling sessions. This highlights the importance of regular CG measurements during and after physical activity and awareness towards potential exercise-induced hypoglycemia in persons with type 1 diabetes.
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Affiliation(s)
| | - Peter Lommer Kristensen
- Department of Endocrinology and Nephrology, Nordsjællands Hospital, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ulrik Pedersen-Bjergaard
- Department of Endocrinology and Nephrology, Nordsjællands Hospital, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Kryger Jensen
- Department of Clinical Research, Nordsjællands Hospital, Denmark
- Section of Biostatistics, Department of Public Health, University of Copenhagen, Denmark
| | - Stig Molsted
- Department of Clinical Research, Nordsjællands Hospital, Denmark
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13
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Cho J, Lee JH, Hong SC. Sleep-Related Eating Disorder and Nocturnal Eating Syndrome. SLEEP MEDICINE RESEARCH 2020. [DOI: 10.17241/smr.2020.00780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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14
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Castellucci B, Barrea L, Laudisio D, Aprano S, Pugliese G, Savastano S, Colao A, Muscogiuri G. Improving sleep disturbances in obesity by nutritional strategies: review of current evidence and practical guide. Int J Food Sci Nutr 2020; 72:579-591. [PMID: 33238797 DOI: 10.1080/09637486.2020.1851659] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Over the past decades, there has been an increase in overweight and obesity worldwide rates in both in adult and children. In parallel, it has been reported a worsening of sleep duration and quality. Some studies have shown an association between obesity and sleep disturbances (SD) vice versa, subjects with obesity have a greater risk of SD. As well as SD influences diet, also food choices have been shown to influence various sleep-related variables, such as duration and quality. For this reason, nutrition could represent an important tool not only to lose weight but also to improve sleep in patients with obesity and sleep disturbances. Thus, the aim of this review is to provide an overview of the studies that assessed the association between obesity and SD and vice versa, highlighting possible nutritional advices as a tool to improve sleep in patients with obesity and sleep disturbances.
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Affiliation(s)
- Bianca Castellucci
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Luigi Barrea
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Daniela Laudisio
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Sara Aprano
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Gabriella Pugliese
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Silvia Savastano
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Annamaria Colao
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Cattedra Unesco "Educazione alla salute e allo sviluppo sostenibile", University Federico II, Naples, Italy
| | - Giovanna Muscogiuri
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
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15
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Affiliation(s)
- Yongin Cho
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea
- Corresponding author: Yongin Cho Division of Endocrinology and Metabolism, Department of Internal Medicine, Inha University School of Medicine, 27 Inhang-ro, Jung-gu, Incheon 22332, Korea E-mail:
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16
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Hur MH, Lee MK, Seong K, Hong JH. Deterioration of Sleep Quality According to Glycemic Status. Diabetes Metab J 2020; 44:679-686. [PMID: 32431108 PMCID: PMC7643591 DOI: 10.4093/dmj.2019.0125] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 08/20/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is a progressive disease with multiple complications. The present study aimed to determine the effects of glycemic status on sleep quality in individuals with T2DM, prediabetes, and normal glucose tolerance (NGT). METHODS A total of 90 participants were categorized into three groups, T2DM (n=30), prediabetes (n=30), and NGT (n=30). Objective sleep quality was measured with the actigraph wrist-worn device over 3 nights and subjective sleep quality was evaluated with a questionnaire. RESULTS The duration of diabetes in the T2DM group was 2.23 years and the glycosylated hemoglobin (HbA1c) levels in the T2DM, prediabetes, and NGT groups were 7.83%, 5.80%, and 5.31%, respectively. Sleep efficiency decreased across the T2DM, prediabetes, and NGT groups (86.25%, 87.99%, and 90.22%, respectively; P=0.047). Additionally, HbA1c levels revealed a significant negative correlation with sleep efficiency (r=-0.348, P=0.001). The sleep quality questionnaire results were similar among the three groups. CONCLUSION Although the participants in the present study were not necessarily conscious of their sleep disturbances, deterioration in sleep quality progressed according to glycemic status.
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Affiliation(s)
| | | | - Kayeon Seong
- Eulji University College of Nursing, Daejeon, Korea
| | - Jun Hwa Hong
- Division of Endocrinology, Department of Internal Medicine, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejeon, Korea
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17
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Abstract
Poor post-prandial glucose control is a risk factor for multiple health conditions. The second-meal effect refers to the progressively improved glycaemic control with repeated feedings, an effect which is achievable with protein ingestion at the initial eating occasion. The most pronounced glycaemic response each day therefore typically occurs following breakfast, so the present study investigated whether ingesting protein during the night could improve glucose control at the first meal of the day. In a randomised crossover design, fifteen adults (seven males, eight females; age, 22 (sd 3) years; BMI, 24·0 (sd 2·8) kg/m2; fasting blood glucose, 4·9 (sd 0·5) mmol/l) woke at 04.00 (sd 1) hours to ingest 300 ml water with or without 63 g whey protein. Participants then completed a mixed-macronutrient meal tolerance test (1 g carbohydrate/kg body mass, 2356 (sd 435) kJ), 5 h 39 min following the nocturnal feeding. Nocturnal protein ingestion increased the glycaemic response (incremental AUC) to breakfast by 43·5 (sd 55·5) mmol × 120 min/l (P = 0·009, d = 0·94). Consistent with this effect, individual peak blood glucose concentrations were 0·6 (sd 1·0) mmol/l higher following breakfast when protein had been ingested (P = 0·049, d = 0·50). Immediately prior to breakfast, rates of lipid oxidation were 0·02 (sd 0·03) g/min higher (P = 0·045) in the protein condition, followed by an elevated post-prandial energy expenditure (0·38 (sd 0·50) kJ/min, P = 0·018). Post-prandial appetite and energy intake were similar between conditions. The present study reveals a paradoxical second-meal phenomenon whereby nocturnal whey protein feeding impaired subsequent glucose tolerance, whilst increasing post-prandial energy expenditure.
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18
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Lastella M, Memon AR, Vincent GE. Global Research Output on Sleep Research in Athletes from 1966 to 2019: A Bibliometric Analysis. Clocks Sleep 2020; 2:99-119. [PMID: 33089195 PMCID: PMC7445811 DOI: 10.3390/clockssleep2020010] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 03/25/2020] [Indexed: 02/06/2023] Open
Abstract
This study examined sleep research in athletes published between 1966 and 2019, through a bibliometric analysis of research output in the Scopus database. Following a robust assessment of titles, the bibliometric indicators of productivity for studies included in the final analysis were: Distribution of publications and citations (excluding self-citations), top ten active journals, countries, institutions and authors, single- and multi-country collaboration, and 25 top-cited papers. Out of the 1015 papers, 313 were included in the final analysis. The majority of the papers were research articles (n = 259; 82.8%) and published in English (n = 295; 94.3%). From 2011, there was a dramatic increase in papers published (n = 257; 82.1%) and citations (n = 3538; 91.0%). The number of collaborations increased after 2001, with papers published through international (n = 81; 25.9%) and national (n = 192; 61.3%) collaboration. Australia was the most prolific country in terms of number of publications (n = 97; 31.0%), and citations (n = 1529; 15.8%). In conclusion, after the beginning of the twenty-first century, the scientific production on sleep research in athletes has seen significant growth in publication and citation output. Future research should focus on interventions to improve sleep in athletes.
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Affiliation(s)
- Michele Lastella
- Appleton Institute of Behavioural Science, Central Queensland University, Adelaide 5034, South Australia, Australia; (M.L.); (G.E.V.)
| | - Aamir Raoof Memon
- Institute of Physiotherapy and Rehabilitation Sciences, Peoples University of Medical and Health Sciences for Women, Nawabshah (SBA), Sindh, Pakistan
| | - Grace E. Vincent
- Appleton Institute of Behavioural Science, Central Queensland University, Adelaide 5034, South Australia, Australia; (M.L.); (G.E.V.)
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19
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Tubbs AS, Gallagher R, Perlis ML, Hale L, Branas C, Barrett M, Gehrels JA, Alfonso-Miller P, Grandner MA. Relationship between insomnia and depression in a community sample depends on habitual sleep duration. Sleep Biol Rhythms 2020; 18:143-153. [PMID: 34305449 DOI: 10.1007/s41105-020-00255-z] [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] [Indexed: 11/30/2022]
Abstract
Sleep disturbances, such as short sleep duration and insomnia, are core features of depression. However, it is unclear if sleep duration and insomnia have an interactive effect on depression severity or individual symptoms. Data were drawn from a community sample (N = 1007) containing responses on the Insomnia Severity Index, Patient Health Questionnaire-9 (PHQ-9), and average sleep duration. Regression analyses determined the prevalence risks (PR) of symptoms of depression based on insomnia severity and sleep duration. Depression severity was related to insomnia severity (PR 1.09, p < 0.001) and short sleep duration (PR 1.52, p < 0.001), but the interaction between the two was negative (PR 0.97, p < 0.001). Insomnia severity increased the prevalence risk of all individual depression symptoms between 8 and 15%, while sleep duration increased the prevalence risk of appetite dysregulation (PR 1.86, p < 0.001), fatigue (PR 1.51, p < 0.001), difficulty concentrating (PR 1.61, p = 0.003), feelings of failure (PR 1.58, p = 0.002), and suicidal behavior (PR 2.54, p = 0.01). The interaction of sleep duration and insomnia was negative and ranged between 3 and 6%. In clinically significant depression (PHQ >=10), only insomnia severity increased the prevalence risk of depression severity (PR 1.02, p = 0.001). Insomnia and short sleep predict prevalent depression, but their interactive effect was negative. Thus, while insomnia had a greater association with depression severity and symptoms, this association was dependent on habitual sleep duration.
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Affiliation(s)
- Andrew S Tubbs
- Sleep and Health Research Program, Department of Psychiatry, University of Arizona, 1501 N Campbell Blvd Suite 7326, Tucson, AZ 85724, USA
| | - Rebecca Gallagher
- Center for Sleep and Circadian Neurobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael L Perlis
- Behavioral Sleep Medicine Program, University of Pennsylvania, Philadelphia, PA, USA
| | - Lauren Hale
- Department of Family, Population, and Preventive Medicine, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Charles Branas
- Department of Epidemiology, Columbia University, New York, NY, USA
| | - Marna Barrett
- Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - Jo-Ann Gehrels
- Sleep and Health Research Program, Department of Psychiatry, University of Arizona, 1501 N Campbell Blvd Suite 7326, Tucson, AZ 85724, USA
| | - Pamela Alfonso-Miller
- Sleep and Health Research Program, Department of Psychiatry, University of Arizona, 1501 N Campbell Blvd Suite 7326, Tucson, AZ 85724, USA
| | - Michael A Grandner
- Sleep and Health Research Program, Department of Psychiatry, University of Arizona, 1501 N Campbell Blvd Suite 7326, Tucson, AZ 85724, USA
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20
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Kumar M, Maqbool S. Memory improvement by modafinil at cost of metabolic hazards? A study to decipher the benefits and risks of modafinil in rats. Neurotoxicology 2020; 78:106-115. [PMID: 32126242 DOI: 10.1016/j.neuro.2020.02.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/27/2020] [Accepted: 02/28/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND Modafinil is approved for narcolepsy and achieved high success in off-label indications in memory-related disorders. However, chronic indiscriminate use of modafinil imposes several health hazards like hyperglycaemia, obesity and metabolic syndrome, owing to impairment of sleep-wake cycle, circadian-rhythm, and neurotransmission. The present protocol elucidates the effects of modafinil per se and diabetic complications apropos. METHODS Modafinil (100 and 200 mg/kg) was administered in rats from day 5-26. To induce type-2 diabetes, streptozotocin (STZ) was given on day 1, and blood glucose assessed on day 5. CPP (combination propranolol and phentolamine) was administered to antagonize sympathetic activity. After evaluation of cognitive functions, serum lipid profile, and biomarkers of oxidative stress and acetylcholinesterase (AChE) activity were assessed. RESULTS Subacute dosing of modafinil significantly elevated blood glucose levels, albeit considerably less than diabetic group, and attenuated brain oxidative stress and AChE activity. Modafinil caused significant dyslipidaemia, increased body weight, whereas modestly altered abdominal circumference (AC) and thoracic circumference (TC) in rats. Significant hyperglycaemia, derangement of serum lipid-profile, brain lipid peroxidation, cholinergic hypofunction, and decrease in body weight and ACTC was noted in diabetic rats. Modafinil (100 mg/kg) significantly potentiated the hyperglycaemia and dyslipidaemia, however, attenuated oxidative stress and AChE activity in diabetic rats. Modafinil increased short-term (working) memory but not long-term spatial memory in normal and diabetic rats. CPP infusion attenuated these effects of modafinil. CONCLUSION Subacute dosing of modafinil differentially modulates long-term and short-term memory subtypes, and also predisposes towards metabolic derangements.
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Affiliation(s)
- Manish Kumar
- Department of Pharmacology, Swift School of Pharmacy, Ghaggar Sarai (Rajpura), Punjab, 140401, India.
| | - Shahnawaz Maqbool
- Department of Pharmacology, Swift School of Pharmacy, Ghaggar Sarai (Rajpura), Punjab, 140401, India
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21
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Frau R, Traccis F, Bortolato M. Neurobehavioural complications of sleep deprivation: Shedding light on the emerging role of neuroactive steroids. J Neuroendocrinol 2020; 32:e12792. [PMID: 31505075 PMCID: PMC6982588 DOI: 10.1111/jne.12792] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/06/2019] [Accepted: 09/05/2019] [Indexed: 01/05/2023]
Abstract
Sleep deprivation (SD) is associated with a broad spectrum of cognitive and behavioural complications, including emotional lability and enhanced stress reactivity, as well as deficits in executive functions, decision making and impulse control. These impairments, which have profound negative consequences on the health and productivity of many individuals, reflect alterations of the prefrontal cortex (PFC) and its connectivity with subcortical regions. However, the molecular underpinnings of these alterations remain elusive. Our group and others have begun examining how the neurobehavioural outcomes of SD may be influenced by neuroactive steroids, a family of molecules deeply implicated in sleep regulation and the stress response. These studies have revealed that, similar to other stressors, acute SD leads to increased synthesis of the neurosteroid allopregnanolone in the PFC. Whereas this up-regulation is likely aimed at counterbalancing the detrimental impact of oxidative stress induced by SD, the increase in prefrontal allopregnanolone levels contributes to deficits in sensorimotor gating and impulse control, signalling a functional impairment of PFC. This scenario suggests that the synthesis of neuroactive steroids during acute SD may be enacted as a neuroprotective response in the PFC; however, such compensation may in turn set off neurobehavioural complications by interfering with the corticolimbic connections responsible for executive functions and emotional regulation.
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Affiliation(s)
- Roberto Frau
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, Monserrato (CA), Italy
- National Institute of Neuroscience (INN), University of Cagliari, Monserrato (CA), Italy
| | - Francesco Traccis
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, Monserrato (CA), Italy
| | - Marco Bortolato
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City (UT), USA
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22
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Alahmary SA, Alduhaylib SA, Alkawii HA, Olwani MM, Shablan RA, Ayoub HM, Purayidathil TS, Abuzaid OI, Khattab RY. Relationship Between Added Sugar Intake and Sleep Quality Among University Students: A Cross-sectional Study. Am J Lifestyle Med 2019; 16:122-129. [DOI: 10.1177/1559827619870476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/21/2019] [Accepted: 07/29/2019] [Indexed: 01/07/2023] Open
Abstract
Eating foods high in added sugar has recently increased among people of all ages. This is expected to negatively affect health and life quality. This study was conducted to investigate the relationship between added sugar intake and sleep quality among university students. A total of 100 randomly selected female students (19-25 years old) from Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia, participated in the study after applying exclusion criteria. Sample size was calculated with expected correlation of −0.4 between sugar intake and sleep quality, a power of 90%, and a type 1 error of 5%. Participants completed the Food Frequency Questionnaire (FFQ), sleep quality questionnaire, and 24-hour dietary recall. Data were analyzed using IBM SPSS Statistics 25, and the χ2test was used for measuring the association between added sugar intake and sleep quality, where P <.05 was considered statistically significant. Results showed that only 17% of participants had good sleep. Data of the 24-hour dietary recall showed a significant association (P = .014) between consumption of added sugars and sleep quality. This is the first study to directly report on the effect of higher intake of added sugars on sleep quality. The study concluded that poor sleep quality was significantly related to higher added sugar intake.
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Affiliation(s)
- Sarah A. Alahmary
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Sakinah A. Alduhaylib
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hibah A. Alkawii
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mashail M. Olwani
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Reem A. Shablan
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hala M. Ayoub
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Tunny S. Purayidathil
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Omar I. Abuzaid
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Rabie Y. Khattab
- Clinical Nutrition Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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23
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Wheatley SD, Whitaker MJG. Why do people overeat? Hunger, psychological eating and type 2 diabetes. PRACTICAL DIABETES 2019. [DOI: 10.1002/pdi.2232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Barakat S, Abujbara M, Banimustafa R, Batieha A, Ajlouni K. Sleep Quality in Patients With Type 2 Diabetes Mellitus. J Clin Med Res 2019; 11:261-266. [PMID: 30937116 PMCID: PMC6436571 DOI: 10.14740/jocmr2947w] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 02/13/2017] [Indexed: 01/07/2023] Open
Abstract
Background This study aims to evaluate the sleep quality in patients with type 2 diabetes mellitus (T2DM), and to assess the relevance of other factors to sleep quality. Methods A cross-sectional study was carried out at the National Center for Diabetes, Endocrinology and Genetics (NCDEG) in Amman, Jordan, during the period from October 1, 2015 to December 31, 2015. A total of 1,211 (540 male and 671 female) patients with T2DM were recruited. Data were collected using the Pittsburgh sleep quality index (PSQI) to assess the sleep quality with a cutoff point of PSQI ≥ 8. Participants’ demographic background data were also recorded. Statistical analysis was conducted using SPSS version 22. Results The mean age of our patients was 58.8 ± 9.74 years. Mean body mass index (BMI) was 32.67 ± 6.1 kg/m2, and mean duration of diabetes was 10.3 ± 7.38 years. The mean PSQI score was 10.2 ± 3.10. In the present study, poor sleep quality was reported in 81% of participants. Multivariate logistic regression analysis revealed that poor sleep quality was significantly associated with high HbA1c, female gender, smoking, unemployment, and insulin use. The study showed that subjective sleep quality and quantity, night sleep disturbance, and daytime dysfunction were risk factors for poor glycemic control. Conclusions In our series, patients with T2DM (81%) have poor sleep quality. Females, smokers, unemployed individuals, insulin users and patients with uncontrolled diabetes seem to be significantly at higher risk of poor sleep quality.
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Affiliation(s)
- Safa Barakat
- The National Center (Institute) for Diabetes, Endocrinology and Genetics/University of Jordan, Amman, Jordan
| | - Mousa Abujbara
- The National Center (Institute) for Diabetes, Endocrinology and Genetics/University of Jordan, Amman, Jordan
| | | | - Anwar Batieha
- Department of Community Medicine, Public Health and Family Medicine, Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Kamel Ajlouni
- The National Center (Institute) for Diabetes, Endocrinology and Genetics/University of Jordan, Amman, Jordan
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Agostinis-Sobrinho C, Gómez-Martínez S, Nova E, Hernandez A, Labayen I, Kafatos A, Gottand F, Molnár D, Ferrari M, Moreno LA, González-Gross M, Michels N, Ruperez A, Ruiz JR, Marcos A. Lifestyle patterns and endocrine, metabolic, and immunological biomarkers in European adolescents: The HELENA study. Pediatr Diabetes 2019; 20:23-31. [PMID: 30471163 DOI: 10.1111/pedi.12802] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/31/2018] [Accepted: 11/15/2018] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE To evaluate the association of lifestyle patterns related to physical activity (PA), sedentariness, and sleep with endocrine, metabolic, and immunological health biomarkers in European adolescents. METHODS The present cross-sectional study comprised 3528 adolescents (1845 girls) (12.5-17.5 years) enrolled in the Healthy Lifestyle in Europe by Nutrition in Adolescence Study. Cluster analysis was performed by including body composition, PA by accelerometry, self-reported sedentary behaviors, and sleep duration. We also measured endocrine, metabolic, and immunological biomarkers. RESULTS Three-cluster solutions were identified: (a) light-PA time, moderate-vigorous-PA time and sedentary time, (b) light-PA time, moderate-vigorous-PA time, sedentary time and sleep time, (c) light-PA time, moderate-vigorous-PA time, sedentary time and body composition. In addition, each cluster solution was defined as: "healthy," "medium healthy," and "unhealthy" according to the presented rating. Analysis of variance showed that overall the healthiest groups from the three clusters analyzed presented a better metabolic profile. A decision tree analysis showed that leptin had a strong association with cluster 3 in both boys and girls, high-density lipoprotein cholesterol had the strongest association with clusters 1 and 3 in boys. Cortisol had the strongest association with cluster 1. HOMA index (homeostatic model assessment) and C3 showed a strong association with cluster 3 in girls. CONCLUSIONS Our results support the existence of different interactions between metabolic health and lifestyle patterns related to PA, sedentariness, and sleep, with some gender-specific findings. These results highlight the importance to consider multiple lifestyle-related health factors in the assessment of adolescents' health to plan favorable strategies.
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Affiliation(s)
| | - Sonia Gómez-Martínez
- Department of Metabolism and Nutrition, Institute of Food Science and Technology and Nutrition (ICTAN), Spanish National Research Council (CSIC), Madrid, Spain
| | - Esther Nova
- Department of Metabolism and Nutrition, Institute of Food Science and Technology and Nutrition (ICTAN), Spanish National Research Council (CSIC), Madrid, Spain
| | - Aurora Hernandez
- Department of Metabolism and Nutrition, Institute of Food Science and Technology and Nutrition (ICTAN), Spanish National Research Council (CSIC), Madrid, Spain
| | - Idoia Labayen
- Institute for Innovation & Sustainable Development in Food Chain (IS-FOOD), Public University of Navarra, Pamplona, Spain
| | | | | | - Dénes Molnár
- Department of Pediatrics, Medical School, University of Pécs, Pecs, Hungary
| | - Marika Ferrari
- Council for Agricultural Research and Economics, Research Center for Food and Nutrition, Rome, Italy
| | - Luis A Moreno
- Growth, Exercise, Nutrition and Development Research Group, University of Zaragoza, Food and Agriculture Institute of Aragón (IA2), Health Research Institute of Aragón (ISS Aragón), Zaragoza, Spain
| | - Marcela González-Gross
- ImFINE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences-INEF, Technical University of Madrid, Madrid, Spain
| | - Nathalie Michels
- Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Azahara Ruperez
- Growth, Exercise, Nutrition and Development Research Group, University of Zaragoza, Food and Agriculture Institute of Aragón (IA2), Health Research Institute of Aragón (ISS Aragón), Zaragoza, Spain
| | - Jonatan R Ruiz
- PROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Ascensión Marcos
- Department of Metabolism and Nutrition, Institute of Food Science and Technology and Nutrition (ICTAN), Spanish National Research Council (CSIC), Madrid, Spain
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Maw SS, Haga C. Effect of a 2-hour interval between dinner and bedtime on glycated haemoglobin levels in middle-aged and elderly Japanese people: a longitudinal analysis of 3-year health check-up data. BMJ Nutr Prev Health 2019; 2:1-10. [PMID: 33235951 PMCID: PMC7678470 DOI: 10.1136/bmjnph-2018-000011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/27/2018] [Accepted: 12/06/2018] [Indexed: 12/20/2022] Open
Abstract
Introduction There is a need for evidence-based measures to examine the risk factors for lifestyle-related diseases. In Japan, a 2-hour interval between dinner and sleep is recommended as a healthy practice. However, the effect of an appropriate duration between dinner and bedtime on glycated haemoglobin (HbA1c) levels remains unclear. This study aimed to identify the effect of a duration of 2 hours or shorter between dinner and bedtime on HbA1c levels in middle-aged and elderly Japanese individuals. Methods A longitudinal analysis of health check-up data (2012, 2013 and 2014) was performed. Lifestyle and anthropometric data of individuals aged 40–74 years who did not have any pre-diabetic and diabetic conditions were collected for multilevel analysis. Univariate analysis was performed to assess the influence of each lifestyle variable. Then, two-level random intercept models were created using statistical software SAS 9.3 (SAS Institute Inc, Cary, NC, USA). Results The cohort comprised 1573 individuals in 2012, two-thirds of whom were women. The mean HbA1c level was 5.20% in 2012 and 5.58% in 2013 and 2014. A total of 83 (16.1%) men and 70 (7.5%) women fell asleep within 2 hours after dinner. The influence of ensuring a 2-hour interval between dinner and bedtime did not have a remarkable effect on increasing HbA1c levels. The regression coefficient of 2-hour interval and HbA1c levels over time was −0.02 (p=0.45). Smoking (p=0.013), alcohol consumption (p=0.010) and higher body mass index (BMI) (p<0.001) may have influenced HbA1c trends. Conclusion Durations of 2 hours or shorter between dinner and bedtime did not influence HbA1c changes in middle-aged and elderly Japanese people. Instead, the focus should be on maintaining a normal BMI and abstaining from smoking and consuming alcohol to ensure stable HbA1c patterns in the long term.
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Affiliation(s)
- Su Su Maw
- Community Health Nursing, Graduate School of Health Sciences, Okayama University, Okayama City, Japan
| | - Chiyori Haga
- Community Health Nursing, Graduate School of Health Sciences, Okayama University, Okayama City, Japan
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Lee JY, Tan CSS, Lee SWH. Ramadan fasting alters sleep behavior in type 2 diabetes patients. J Diabetes 2019; 11:93-94. [PMID: 30094944 DOI: 10.1111/1753-0407.12838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 08/06/2018] [Indexed: 11/28/2022] Open
Affiliation(s)
- Jun Yang Lee
- School of Pharmacy, Monash University Malaysia, Selangor, Malaysia
| | | | - Shaun Wen Huey Lee
- School of Pharmacy and Asian Centre for Evidence Synthesis in Population, Implementation and Clinical Outcomes (PICO), GA21 Platform, Monash University Malaysia, Selangor, Malaysia
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28
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Briggs C, Bowes SC, Semba K, Hirasawa M. Sleep deprivation-induced pre- and postsynaptic modulation of orexin neurons. Neuropharmacology 2018; 154:50-60. [PMID: 30586566 DOI: 10.1016/j.neuropharm.2018.12.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 12/20/2018] [Accepted: 12/21/2018] [Indexed: 10/27/2022]
Abstract
Sleep/wake states are controlled by sleep- and wake-promoting systems, and transitions between states are thought to be regulated by their reciprocal inhibition and homeostatic sleep need. Orexin neurons are known to promote wake maintenance and stabilize the sleep/wake switch. Thus, we asked whether orexin neurons are modulated by homeostatic sleep need. Rats were sleep deprived or left undisturbed to rest for 6 h, then acute brain slices were generated for patch clamp recordings. We found that sleep deprivation increased firing and reduced spike frequency adaptation in response to excitatory drive in orexin neurons. These changes were specific to D-type orexin neurons which, unlike H-type orexin neurons, lack A-type current. In D-type orexin neurons, sleep deprivation decreased afterhyperpolarizing potential, which was associated with increased gain, measured as the slope of the input-output relationship. These effects were mimicked by inhibition of SK channels. Furthermore, sleep deprivation resulted in presynaptic inhibition of excitatory inputs to both D-type and H-type orexin neurons, which preferentially affected sparse synaptic inputs while sparing high frequency synaptic activities. Taken together, our results indicate that sleep deprivation modulates the gain control and synaptic gating in orexin neurons. These pre-and postsynaptic changes would tune orexin neurons to strong wake-promoting excitatory signals, while dampening weak synaptic inputs to allow transition to sleep in the absence of such strong signals. These mechanisms are consistent with a role of orexin neurons not only as a key state stabilizer, but also as a homeostatic wake integrator in the sleep/wake switch. This article is part of the Special Issue entitled 'Hypothalamic Control of Homeostasis'.
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Affiliation(s)
- Chantalle Briggs
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada; Department of Medical Neuroscience, Faculty of Medicine, Dalhousie University, 5850 College Street, Halifax, NS, B3H 4R2, Canada
| | - Sherri C Bowes
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada
| | - Kazue Semba
- Department of Medical Neuroscience, Faculty of Medicine, Dalhousie University, 5850 College Street, Halifax, NS, B3H 4R2, Canada; Department of Psychiatry, Faculty of Medicine, Dalhousie University, 5909 Veterans' Memorial Lane, Halifax, NS, B3H 2E2, Canada; Department of Psychology and Neuroscience, Faculty of Science, Dalhousie University, 1355 Oxford Street, Halifax, NS, B3H 4R2, Canada
| | - Michiru Hirasawa
- Division of Biomedical Sciences, Faculty of Medicine, Memorial University, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada.
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Long Sleep Duration and Social Jetlag Are Associated Inversely with a Healthy Dietary Pattern in Adults: Results from the UK National Diet and Nutrition Survey Rolling Programme Y1⁻4. Nutrients 2018; 10:nu10091131. [PMID: 30134567 PMCID: PMC6163907 DOI: 10.3390/nu10091131] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 08/17/2018] [Accepted: 08/18/2018] [Indexed: 12/30/2022] Open
Abstract
Limited observational studies have described the relationship between sleep duration and overall diet. The present study investigated the association between sleep duration on weekdays or social jetlag and empirically derived dietary patterns in a nationally representative sample of UK adults, aged 19⁻64 years old, participating in the 2008⁻2012 UK National Diet and Nutrition Survey Rolling Programme. Survey members completed between three to four days of dietary records. Sleep duration on weekdays was categorized into tertiles to reflect short, normal, and long sleep duration. Social jetlag was calculated as the difference between sleep duration on weekends and weekdays. The association between sleep duration/social jetlag and dietary patterns, derived by principal components analysis, was assessed by regressing diet on sleep, whilst accounting for the complex survey design and adjusting for relevant confounders. Survey members in the highest tertile of sleep duration had on average a 0.45 (95% Confidence Interval (CI) -0.78, -0.12) lower healthy dietary pattern score, compared to middle tertile (p = 0.007). There was an inverted u-shaped association between social jetlag and the healthy dietary pattern, such that when sleep on weekends exceeded weekday sleep by 1 h 45 min, scores for indicating a healthy dietary pattern declined (p = 0.005). In conclusion, long sleep duration on weekdays and an increased social jetlag are associated with a lower healthy dietary pattern score. Further research is required to address factors influencing dietary patterns in long sleepers.
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Chen CCJJ, Ringenbach SDR. Walking performance in adolescents and young adults with Down syndrome: the role of obesity and sleep problems. JOURNAL OF INTELLECTUAL DISABILITY RESEARCH : JIDR 2018; 62:339-348. [PMID: 29484778 DOI: 10.1111/jir.12474] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 12/18/2017] [Accepted: 12/21/2017] [Indexed: 06/08/2023]
Abstract
BACKGROUND High prevalence of obesity and features of obstructive sleep apnea (OSA) are major health issues in individuals with Down syndrome (DS), and both may also affect adversely on their daily activities. Further, lower levels of physical work capacity (PWC) have been reported in this population compared to their peers with intellectual disabilities. However, no study examines the relationships between obesity and sleep problems with PWC in individuals with DS. Thus, this study investigated the influence of body mass index (BMI) and different types of sleep problems on PWC in adolescents and young adults with DS (14-31 years). METHODS The incremental treadmill walking trial was used to assess PWC. RESULTS The negative associations were indicated between BMI and walking steps (p = .03) as well as features with OSA and walking steps (p = .04). Thus, BMI and OSA were included in the regression analysis to estimate the walking steps achieved during walking trials. In addition, Bland-Altman plots demonstrated no overestimation and underestimation of variability in the difference between actual and estimated walking steps developed by using BMI and OSA. CONCLUSIONS Obesity and sleep problem are potentially detrimental to walking performance (i.e., fewer walking steps) in individuals with DS. Thus, individuals with DS may adopt a slow walk speed due to the increased balance deficits and physical fatigue that result from obesity and sleep fragmentation, respectively. Exercise interventions, which have the potential to reduce obesity and OSA, are recommended to improve the accomplishment of PWC in individuals with DS.
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Affiliation(s)
- C-C J J Chen
- Department of Kinesiology, Mississippi State University, Mississippi State, MS, USA
| | - S D R Ringenbach
- School of Nutrition and Health Promotion, Program of Exercise Science and Health Promotion, Arizona State University, Phoenix, AZ, USA
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Grant CL, Coates AM, Dorrian J, Paech GM, Pajcin M, Della Vedova C, Johnson K, Kamimori GH, Fidock J, Aidman E, Banks S. The impact of caffeine consumption during 50 hr of extended wakefulness on glucose metabolism, self-reported hunger and mood state. J Sleep Res 2018; 27:e12681. [DOI: 10.1111/jsr.12681] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 01/18/2018] [Accepted: 01/24/2018] [Indexed: 12/29/2022]
Affiliation(s)
- Crystal L. Grant
- Sleep and Chronobiology Laboratory; School of Psychology, Social Work and Social Policy; University of South Australia; Adelaide SA Australia
| | - Alison M. Coates
- Alliance for Research in Exercise, Nutrition and Activity; University of South Australia; Adelaide SA Australia
| | - Jillian Dorrian
- Sleep and Chronobiology Laboratory; School of Psychology, Social Work and Social Policy; University of South Australia; Adelaide SA Australia
| | - Gemma M. Paech
- Sleep and Chronobiology Laboratory; School of Psychology, Social Work and Social Policy; University of South Australia; Adelaide SA Australia
| | - Maja Pajcin
- School of Pharmacy and Medical Sciences; University of South Australia; Adelaide SA Australia
| | - Chris Della Vedova
- School of Pharmacy and Medical Sciences; University of South Australia; Adelaide SA Australia
| | - Kayla Johnson
- Defence Science and Technology (DST) Group; Adelaide SA Australia
| | - Gary H. Kamimori
- Behavioral Biology Branch; Walter Reed Army Institute for Research; Silver Spring MD USA
| | - Justin Fidock
- Defence Science and Technology (DST) Group; Adelaide SA Australia
| | - Eugene Aidman
- Defence Science and Technology (DST) Group; Adelaide SA Australia
| | - Siobhan Banks
- Sleep and Chronobiology Laboratory; School of Psychology, Social Work and Social Policy; University of South Australia; Adelaide SA Australia
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32
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Vincent GE, Kinchin I, Ferguson SA, Jay SM. The Cost of Inadequate Sleep among On-Call Workers in Australia: A Workplace Perspective. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E398. [PMID: 29495371 PMCID: PMC5876943 DOI: 10.3390/ijerph15030398] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 02/07/2018] [Accepted: 02/14/2018] [Indexed: 11/30/2022]
Abstract
On-call or stand-by is becoming an increasingly prevalent form of work scheduling. However, on-call arrangements are typically utilised when workloads are low, for example at night, which can result in inadequate sleep. It is a matter of concern that on-call work is associated with an increased risk of workplace injury. This study sought to determine the economic cost of injury due to inadequate sleep in Australian on-call workers. The prevalence of inadequate sleep among on-call workers was determined using an online survey, and economic costs were estimated using a previously validated costing methodology. Two-thirds of the sample (66%) reported obtaining inadequate sleep on weekdays (work days) and over 80% reported inadequate sleep while on-call. The resulting cost of injury is estimated at $2.25 billion per year ($1.71-2.73 billion). This equates to $1222 per person per incident involving a short-term absence from work; $2.53 million per incident classified as full incapacity, and $1.78 million for each fatality. To the best of our knowledge this is the first study to quantify the economic cost of workplace injury due to inadequate sleep in on-call workers. Well-rested employees are critical to safe and productive workplace operations. Therefore, it is in the interest of both employers and governments to prioritise and invest far more into the management of inadequate sleep in industries which utilise on-call work arrangements.
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Affiliation(s)
- Grace E Vincent
- School for Health, Medical and Applied Sciences, Central Queensland University, Adelaide 5034, Australia.
| | - Irina Kinchin
- School for Health, Medical and Applied Sciences, Central Queensland University, Adelaide 5034, Australia.
- The Cairns Institute, James Cook University, Cairns 4870, Australia.
| | - Sally A Ferguson
- School for Health, Medical and Applied Sciences, Central Queensland University, Adelaide 5034, Australia.
| | - Sarah M Jay
- School for Health, Medical and Applied Sciences, Central Queensland University, Adelaide 5034, Australia.
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33
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Mete EM, Perry TL, Haszard JJ, Homer AR, Fenemor SP, Rehrer NJ, Skeaff CM, Peddie MC. Interrupting Prolonged Sitting with Regular Activity Breaks does not Acutely Influence Appetite: A Randomised Controlled Trial. Nutrients 2018; 10:E125. [PMID: 29373503 PMCID: PMC5852701 DOI: 10.3390/nu10020125] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 01/17/2018] [Accepted: 01/23/2018] [Indexed: 12/17/2022] Open
Abstract
Regular activity breaks increase energy expenditure; however, this may promote compensatory eating behaviour. The present study compared the effects of regular activity breaks and prolonged sitting on appetite. In a randomised, cross-over trial, 36 healthy adults (BMI (Body Mass Index) 23.9 kg/m² (S.D. = 3.9)) completed four, two-day interventions: two with prolonged sitting (SIT), and two with sitting and 2 min of walking every 30 min (RAB). Standardized meals were provided throughout the intervention, with an ad libitum meal at the end of Day 2. Appetite and satiety were assessed throughout both days of each intervention using five visual analogue scales. The five responses were combined into a single appetite response at each time point. The area under the appetite response curve (AUC) was calculated for each day. Intervention effects for appetite response AUC and ad libitum meal intake were tested using linear mixed models. Appetite AUC did not differ between interventions (standardised effect of RAB compared to SIT: Day 1: 0.11; 95% CI: -0.28, 0.06; p = 0.212; Day 2: 0.04; 95% CI: -0.15, 0.24; p = 0.648). There was no significant difference in energy consumed at the ad libitum lunch meal on Day 2 between RAB and SIT. Interrupting prolonged sitting with regular activity breaks does not acutely influence appetite or volume of food consumed, despite inferred increases in energy expenditure. Longer-term investigation into the effects of regular activity breaks on energy balance is warranted.
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Affiliation(s)
- Evelyn M Mete
- Department of Human Nutrition, University of Otago, Dunedin 9016, New Zealand.
| | - Tracy L Perry
- Department of Human Nutrition, University of Otago, Dunedin 9016, New Zealand.
| | - Jillian J Haszard
- Department of Human Nutrition, University of Otago, Dunedin 9016, New Zealand.
| | - Ashleigh R Homer
- Department of Human Nutrition, University of Otago, Dunedin 9016, New Zealand.
| | - Stephen P Fenemor
- School of Physical Education, Sport, and Exercise Sciences, University of Otago, Dunedin 9016, New Zealand.
| | - Nancy J Rehrer
- School of Physical Education, Sport, and Exercise Sciences, University of Otago, Dunedin 9016, New Zealand.
| | - C Murray Skeaff
- Department of Human Nutrition, University of Otago, Dunedin 9016, New Zealand.
| | - Meredith C Peddie
- Department of Human Nutrition, University of Otago, Dunedin 9016, New Zealand.
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Isami F, West BJ, Nakajima S, Yamagishi SI. Association of advanced glycation end products, evaluated by skin autofluorescence, with lifestyle habits in a general Japanese population. J Int Med Res 2018; 46:1043-1051. [PMID: 29322837 PMCID: PMC5972252 DOI: 10.1177/0300060517736914] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Objective Accumulation of advanced glycation end products (AGEs) occurs during normal aging but markedly accelerates in people with diabetes. AGEs may play a role in various age-related disorders. Several studies have demonstrated that skin autofluorescence (SAF) reflects accumulated tissue levels of AGEs. However, very few studies have investigated SAF in the general population. The purpose of the present study was to more thoroughly evaluate the potential association among SAF, chronological age, and lifestyle habits in the general population. Methods A large cross-sectional survey of 10,946 Japanese volunteers aged 20 to 79 years was conducted. Volunteers completed a self-administered questionnaire and underwent SAF measurement on their dominant forearms. The associations of SAF with age and lifestyle habits were analyzed using a multiple stepwise regression analysis. Results Age was independently correlated with SAF. Lifestyle habits such as physical activity, nonsmoking, adequate sleep, low mental stress level, eating breakfast, and abstaining from sugary food were each independently associated with lower SAF. Conclusions SAF was associated with age and healthy lifestyle habits in this general Japanese population. The present study suggests that SAF measurement is a convenient tool for evaluating habitual lifestyle behaviors and may have potential for preventative health education.
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Affiliation(s)
| | - Brett J West
- 2 Research and Development, Morinda Inc., American Fork, UT, USA
| | - Sanae Nakajima
- 3 Department of Language and Literature, Kyoritsu Women's Junior College, Tokyo, Japan
| | - Sho-Ichi Yamagishi
- 4 Department of Pathophysiology and Therapeutics of Diabetic Vascular Complications, Kurume University School of Medicine, Kurume, Japan
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Gohil A, Hannon TS. Poor Sleep and Obesity: Concurrent Epidemics in Adolescent Youth. Front Endocrinol (Lausanne) 2018; 9:364. [PMID: 30042730 PMCID: PMC6048236 DOI: 10.3389/fendo.2018.00364] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 06/18/2018] [Indexed: 12/11/2022] Open
Abstract
Poor sleep and obesity are both extraordinarily common in the US adolescent population and often occur simultaneously. This review explores the links between obesity and sleep, outlining what is known about the relationships between sleep characteristics, obesity, and cardiometabolic risk factors in youth. Sleep duration is less than optimal in teens, and decreases as age increases. This is detrimental to overall well-being and is associated with obesity in children, adolescents, and young adults. Accordingly, inadequate sleep duration is associated with poor diet quality, decreased insulin sensitivity, hyperglycemia, and prevalent cardiometabolic risk factors. Evidence suggests that poor sleep quality and altered circadian timing characterized by a preferred later sleep onset, known as "adolescent chronotype," contributes to shortened sleep duration. Obstructive sleep apnea (OSA) occurs more frequently among youth with obesity, and is associated with autonomic nervous system activity promoting higher blood pressure, increased markers of cardiovascular disease risk, and insulin resistance. While there is a clear association between OSA and type 2 diabetes in adults, whether or not this association is prevalent in youth is unclear at this time. Interventions to improve both sleep duration and quality, and obesity in adolescents are scarce and more evidence is needed to determine if such interventions can improve obesity-related health outcomes.
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Affiliation(s)
- Anisha Gohil
- Pediatric Endocrinology Fellow, Section of Pediatric Endocrinology/Diabetology, Riley Hospital for Children at IU Health, Indiana University School of Medicine, Indianapolis, IN, United States
- *Correspondence: Anisha Gohil
| | - Tamara S. Hannon
- Section of Pediatric Endocrinology/Diabetology, Riley Hospital for Children at IU Health, Indiana University School of Medicine, Indianapolis, IN, United States
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Vincent GE, Jay SM, Sargent C, Vandelanotte C, Ridgers ND, Ferguson SA. Improving Cardiometabolic Health with Diet, Physical Activity, and Breaking Up Sitting: What about Sleep? Front Physiol 2017; 8:865. [PMID: 29167645 PMCID: PMC5682337 DOI: 10.3389/fphys.2017.00865] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 10/16/2017] [Indexed: 12/21/2022] Open
Abstract
Cardiometabolic disease poses a serious health and economic burden worldwide and its prevalence is predicted to increase. Prolonged sitting, lack of physical activity, poor diet, and short sleep duration are ubiquitous behaviors in modern society, and all are independent risk factors in the development of cardiometabolic disease. Existing evidence demonstrates that breaking up prolonged periods of sitting is beneficial for cardiometabolic health, however, studies have not controlled for prior sleep duration. This article examines how prolonged sitting and short sleep duration independently contribute to cardiometabolic risk, and how breaking up sitting and obtaining adequate sleep may reduce this risk. We suggest that as prolonged sitting and short sleep duration influence the same cardiometabolic parameters, there is potential for short sleep to attenuate the positive impact of breaking up prolonged sitting with physical activity. Likewise, breaking up prolonged sitting and obtaining adequate sleep together could improve predictors of cardiometabolic disease, i.e., the combined effect may be stronger than either alone. To explore these perspectives, we propose a research agenda to investigate the relationship between breaking up prolonged sitting with physical activity and short sleep duration. This will provide an evidence-base for informing the design of interventions to reduce the burden of cardiometabolic disease on communities worldwide.
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Affiliation(s)
- Grace E. Vincent
- Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
| | - Sarah M. Jay
- Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
| | - Charli Sargent
- Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
| | - Corneel Vandelanotte
- Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
| | - Nicola D. Ridgers
- Institute of Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Sally A. Ferguson
- Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
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37
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Werz SM, Pfeifle M, Schrader F, Jurgens P, Briel M, Berg BI. Surgery for obstructive sleep apnoea in adults. Hippokratia 2017. [DOI: 10.1002/14651858.cd012770] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Simon M Werz
- Medius Klinik Ostfildern-Ruit; Craniofacial and Plastic Surgery; Ostfildern-Ruit Germany 73760
| | - Martin Pfeifle
- Klinikum Stuttgart - Katharinenhospital; Head Center - Clinic for Maxillofacial Surgery, Plastic Surgery, Implant Center; Stuttgart Germany
| | - Felix Schrader
- University Hospital of Duesseldorf; Department of Oral and Maxillofacial Surgery, Plastic Surgery of the Face; Moorenstr. 5 Duesseldorf Germany D-40225
| | - Philipp Jurgens
- University Hospital Basel; Cranio-Maxillofacial Surgery; Basel Switzerland
| | - Matthias Briel
- University Hospital Basel and University of Basel; Basel Institute for Clinical Epidemiology and Biostatistics, Department of Clinical Research; Basel Switzerland
| | - Britt-Isabelle Berg
- University Hospital Basel; Cranio-Maxillofacial Surgery; Basel Switzerland
- Columbia University Medical Center; Division of Oral and Maxillofacial Radiology; New York NY USA
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Mullins EN, Miller AL, Cherian SS, Lumeng JC, Wright KP, Kurth S, Lebourgeois MK. Acute sleep restriction increases dietary intake in preschool-age children. J Sleep Res 2017; 26:48-54. [PMID: 27641365 PMCID: PMC5226917 DOI: 10.1111/jsr.12450] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 07/22/2016] [Indexed: 11/30/2022]
Abstract
Epidemiological findings suggest short sleep duration is associated with overweight and obesity across the lifespan. In adults, experimental sleep loss increases caloric intake more than total daily energy needs, thus leading to weight gain. To date, little is known about the relationship between sleep restriction and dietary intake in preschool children. Healthy children (n = 10; 41.2 ± 5.4 months; 5 females) followed a strict sleep schedule for 5 days before each experimental condition: 1 day of baseline sleep (nap and scheduled bedtime/wake time) and 1 day of sleep restriction (no-nap and ~2.3 h bedtime delay). Standardized parent-report dietary intake measures were obtained on baseline, sleep restriction and sleep recovery (ad libitum sleep opportunity in the 24-h following sleep restriction) days. As designed, children slept ~3 h less on the sleep restriction than the baseline day (P < 0.001), with no significant differences in sleep between baseline and recovery days (verified with actigraphy). Repeated-measures anovas indicated differences across conditions in total kilocalories, sugar, carbohydrate and fat intake (all P < 0.05; no differences in protein). Post hoc tests revealed that compared with baseline, children consumed 21% more kilocalories, 25% more sugar and 26% more carbohydrates on the day of sleep restriction, as well as 14% more kilocalories and 23% more fat on the day of sleep recovery (all P < 0.05). Findings suggest that acute sleep loss increases dietary intake in preschoolers both on the day of and the day after sleep restriction. Increased kilocalorie intake may promote weight gain over time and be a mechanism through which short sleep contributes to childhood obesity risk.
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Affiliation(s)
- Elsa N Mullins
- Sleep and Development Laboratory, Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Alison L Miller
- Department of Heath Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Sherin S Cherian
- Sleep and Development Laboratory, Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Julie C Lumeng
- Department of Heath Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Kenneth P Wright
- Sleep and Chronobiology Laboratory, Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Salome Kurth
- Sleep and Development Laboratory, Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Monique K Lebourgeois
- Sleep and Development Laboratory, Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
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Johnson DA, Lisabeth L, Hickson D, Johnson-Lawrence V, Samdarshi T, Taylor H, Diez Roux AV. The Social Patterning of Sleep in African Americans: Associations of Socioeconomic Position and Neighborhood Characteristics with Sleep in the Jackson Heart Study. Sleep 2016; 39:1749-59. [PMID: 27253767 DOI: 10.5665/sleep.6106] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 04/18/2016] [Indexed: 11/03/2022] Open
Abstract
STUDY OBJECTIVES We investigated cross-sectional associations of individual-level socioeconomic position (SEP) and neighborhood characteristics (social cohesion, violence, problems, disadvantage) with sleep duration and sleep quality in 5,301 African Americans in the Jackson Heart Study. METHODS All measures were self-reported. Sleep duration was assessed as hours of sleep; sleep quality was reported as poor (1) to excellent (5). SEP was measured by categorized years of education and income. Multinomial logistic and linear regression models were fit to examine the associations of SEP and neighborhood characteristics (modeled dichotomously and tertiles) with sleep duration (short vs. normal, long vs. normal) and continuous sleep duration and quality after adjustment for demographics and risk factors. RESULTS The mean sleep duration was 6.4 ± 1.5 hours, 54% had a short (≤ 6 h) sleep duration, 5% reported long (≥ 9 h) sleep duration, and 24% reported fair to poor sleep quality. Lower education was associated with greater odds of long sleep (odds ratio [OR] = 2.19, 95% confidence interval [CI] = 1.42, 3.38) and poorer sleep quality (β = -0.17, 95% CI = -0.27, -0.07) compared to higher education after adjustment for demographics and risk factors. Findings were similar for income. High neighborhood violence was associated with shorter sleep duration (-9.82 minutes, 95% CI = -16.98, -2.66) and poorer sleep quality (β = -0.11, 95% CI = -0.20, 0.00) after adjustment for demographics and risk factors. Results were similar for neighborhood problems. In secondary analyses adjusted for depressive symptoms in a subset of participants, most associations were attenuated and only associations of low SEP with higher odds of long sleep and higher neighborhood violence with poorer sleep quality remained statistically significant. CONCLUSIONS Social and environmental characteristics are associated with sleep duration and quality in African Americans. Depressive symptoms may explain at least part of this association.
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Affiliation(s)
- Dayna A Johnson
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI.,Division of Sleep and Circadian Disorders, Brigham and Women's Hospital and Harvard Medical School, Boston MA
| | - Lynda Lisabeth
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI
| | - DeMarc Hickson
- My Brothers Keeper, Inc., Jackson, MS.,University of Mississippi Medical Center, Jackson, MS
| | - Vicki Johnson-Lawrence
- Department of Public Health and Health Sciences, University of Michigan-Flint, Flint, Michigan
| | | | - Herman Taylor
- Morehouse School of Medicine's Cardiovascular Research Institute, Atlanta, GA
| | - Ana V Diez Roux
- Dornsife School of Public Health, Drexel University, Philadelphia, PA
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40
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Brianza-Padilla M, Bonilla-Jaime H, Almanza-Pérez JC, López-López AL, Sánchez-Muñoz F, Vázquez-Palacios G. Effects of different periods of paradoxical sleep deprivation and sleep recovery on lipid and glucose metabolism and appetite hormones in rats. Appl Physiol Nutr Metab 2016; 41:235-43. [DOI: 10.1139/apnm-2015-0337] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Sleep has a fundamental role in the regulation of energy balance, and it is an essential and natural process whose precise impacts on health and disease have not yet been fully elucidated. The aim of this study was to assess the consequences of different periods of paradoxical sleep deprivation (PSD) and recovery from PSD on lipid profile, oral glucose tolerance test (OGTT) results, and changes in insulin, corticosterone, ghrelin, and leptin concentrations. Three-month-old male Wistar rats weighing 250–350 g were submitted to 24, 96, or 192 h of PSD or 192 h of PSD with 480 h of recovery. The PSD was induced by the multiple platforms method. Subsequently, the animals were submitted to an OGTT. One day later, the animals were killed and the levels of triglycerides, total cholesterol, lipoproteins (low-density lipoprotein, very-low-density lipoprotein, and high-density lipoprotein), insulin, ghrelin, leptin, and corticosterone in plasma were quantified. There was a progressive decrease in body weight with increasing duration of PSD. The PSD induced basal hypoglycemia over all time periods evaluated. Evaluation of areas under the curve revealed progressive hypoglycemia only after 96 and 192 h of PSD. There was an increase in corticosterone levels after 192 h of PSD. We conclude that PSD induces alterations in metabolism that are reversed after a recovery period of 20 days.
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Affiliation(s)
| | - Herlinda Bonilla-Jaime
- Departamento de Biología de la Reproducción, Área de Biología Conductual y Reproductiva, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco No. 186, Col. Vicentina, CP 09340, Mexico
| | - Julio César Almanza-Pérez
- Departamento de Ciencias de la Salud, Área de Investigación Médica, Universidad Autónoma Metropolitana-Iztapalapa, CP 09340, Mexico
| | - Ana Laura López-López
- Posgrado en Biología Experimental, Universidad Autónoma Metropolitana-Iztapalapa, CP 09340, Mexico
| | - Fausto Sánchez-Muñoz
- Departamento de Inmunología, Instituto Nacional de Cardiologia (Ignacio Chávez), Juan Badiano No. 1, Col. Sección XVI, Del. Tlalpan, CP 14080, Mexico
| | - Gonzalo Vázquez-Palacios
- Colegio de Ciencias y Humanidades, Universidad Autónoma de la Ciudad de México-San Lorenzo Tezonco, Av. Prolongación San Isidro No. 151, Col. San Lorenzo Tezonco, Del. Iztapalapa, CP 09790, Mexico
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Araújo MFMD, Freitas RWJFD, Lima ACS, Pereira DCR, Zanetti ML, Damasceno MMC. Relation between sleep quality and metabolic syndrome among university students. TEXTO & CONTEXTO ENFERMAGEM 2015. [DOI: 10.1590/0104-07072015002652014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
This transversal study aimed to analyze the relationship between poor sleep quality and metabolic syndrome among university students. The sleep quality and the components of metabolic syndrome of 701 university students from Fortaleza, Brazil, were evaluated during 2011 and 2012. In the evaluation of the scale of the associations, robust Poisson regression was used, adjusted for sex and age. The prevalence of metabolic syndrome and poor quality sleep was 1.7% and 95.3% respectively. There was an increase in risk of 5% of developing metabolic syndrome among those university students who slept poorly (p=0.013). It is concluded that the university students in the sample who were poor sleepers present a greater probability of presenting metabolic syndrome.
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43
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Cedernaes J, Schiöth HB, Benedict C. Determinants of shortened, disrupted, and mistimed sleep and associated metabolic health consequences in healthy humans. Diabetes 2015; 64:1073-80. [PMID: 25805757 DOI: 10.2337/db14-1475] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent increases in the prevalence of obesity and type 2 diabetes mellitus (T2DM) in modern societies have been paralleled by reductions in the time their denizens spend asleep. Epidemiological studies have shown that disturbed sleep-comprising short, low-quality, and mistimed sleep-increases the risk of metabolic diseases, especially obesity and T2DM. Supporting a causal role of disturbed sleep, experimental animal and human studies have found that sleep loss can impair metabolic control and body weight regulation. Possible mechanisms for the observed changes comprise sleep loss-induced changes in appetite-signaling hormones (e.g., higher levels of the hunger-promoting hormone ghrelin) or hedonic brain responses, altered responses of peripheral tissues to metabolic signals, and changes in energy intake and expenditure. Even though the overall consensus is that sleep loss leads to metabolic perturbations promoting the development of obesity and T2DM, experimental evidence supporting the validity of this view has been inconsistent. This Perspective aims at discussing molecular to behavioral factors through which short, low-quality, and mistimed sleep may threaten metabolic public health. In this context, possible factors that may determine the extent to which poor sleep patterns increase the risk of metabolic pathologies within and across generations will be discussed (e.g., timing and genetics).
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Affiliation(s)
| | - Helgi B Schiöth
- Department of Neuroscience, Uppsala University, Uppsala, Sweden
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Wong PM, Manuck SB, DiNardo MM, Korytkowski M, Muldoon MF. Shorter sleep duration is associated with decreased insulin sensitivity in healthy white men. Sleep 2015; 38:223-31. [PMID: 25325485 DOI: 10.5665/sleep.4402] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 07/27/2014] [Indexed: 11/03/2022] Open
Abstract
STUDY OBJECTIVES Short sleep has been linked to increased risk for type 2 diabetes and incident cardiovascular disease and acute sleep restriction impairs insulin-mediated glucose disposal. Here, we examined whether indices of glucose metabolism vary with naturally occurring differences in sleep duration. DESIGN AND MEASURES Subjects were midlife, nondiabetic community volunteers (N = 224; mean age 44.5 ± 6.6 y [range: 30-54]; 52% female; 89% white). Laboratory measures of insulin sensitivity (Si) and acute secretion (AIRg), glucose effectiveness (Sg), and disposition index (Di) were obtained from a 180-min, intravenous glucose tolerance test. RESULTS Shorter self-reported sleep duration (in hours) was associated with lower Si (P = 0.043), although an interaction of sleep duration with participant race (β = -0.81, P = 0.002) showed this association significant only in whites. Moreover, sex-stratified analyses revealed that shorter sleep duration predicted lower Si in white men (β = 0.29, P = 0.003) but not in white women (P = 0.22). Findings were similar for AIRg. The relationship between sleep duration and AIRg was moderated by race as well as sex, such that shorter sleep duration associated with greater insulin release only in white men (β = -0.28, P = 0.004). Sleep duration was unrelated to Sg and Di (P's > 0.05). CONCLUSIONS Our findings suggest that shorter sleep duration may impair insulin sensitivity and beta-cell function in nondiabetic white men, possibly contributing to later type 2 diabetes and cardiovascular disease.
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Affiliation(s)
- Patricia M Wong
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA
| | - Stephen B Manuck
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA
| | | | - Mary Korytkowski
- Division of Endocrinology and Metabolism, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Matthew F Muldoon
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA.,Heart and Vascular Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA
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45
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Graef DM, Janicke DM, McCrae CS. Sleep patterns of a primarily obese sample of treatment-seeking children. J Clin Sleep Med 2014; 10:1111-7. [PMID: 25317092 DOI: 10.5664/jcsm.4112] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES To examine the sleep patterns and the role of day of the week and school break in these patterns within a primarily obese sample of children. METHODS Participants included 143 obese children (8-12 years) and their parents initiating treatment in a weight-management study in a community-based setting. Demographics, anthropometrics, and objectively measured sleep (i.e., with use of Sensewear Armbands) were collected prior to treatment. RESULTS Sleep duration was insufficient in our sample, as approximately 88% obtained less than 8 hours of sleep (mean = 6.92, standard deviation = 0.85). Those with lower total sleep time included older children, those identified as African American (compared to those identified as Caucasian), and those identified as Non-Hispanic (compared to those identified as Hispanic). Children on school break initiated sleep later than those in school the week of measurement. Children woke later on weekends and when on school break. There were no differences in day of the week or school break in predicting child sleep duration and total wake time (p's > 0.05). CONCLUSIONS This study is one of the first to examine sleep patterns within a primarily obese sample of treatment-seeking rural children. There is a need for research to develop a better understanding of how sleep may affect health functioning and weight management, as well as quality of life and psychosocial functioning of children who are overweight or obese.
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Affiliation(s)
- Danielle M Graef
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL
| | - David M Janicke
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL ; Department of Pediatrics, University of Florida, Gainesville, FL
| | - Christina S McCrae
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL
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Palagini L, Gemignani A, Banti S, Manconi M, Mauri M, Riemann D. Chronic sleep loss during pregnancy as a determinant of stress: impact on pregnancy outcome. Sleep Med 2014; 15:853-9. [DOI: 10.1016/j.sleep.2014.02.013] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 02/08/2014] [Accepted: 02/11/2014] [Indexed: 10/25/2022]
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47
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Smith SS, Waight C, Doyle G, Rossa KR, Sullivan KA. Liking for high fat foods in patients with Obstructive Sleep Apnoea. Appetite 2014; 78:185-92. [DOI: 10.1016/j.appet.2014.03.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 03/18/2014] [Accepted: 03/19/2014] [Indexed: 11/26/2022]
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Yngman-Uhlin P, Fernström A, Börjeson S, Edéll-Gustafsson U. Evaluation of an individual sleep intervention programme in people undergoing peritoneal dialysis treatment. J Clin Nurs 2013; 21:3402-17. [PMID: 23145513 DOI: 10.1111/j.1365-2702.2012.04282.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AIMS AND OBJECTIVES This study aimed to evaluate effects of a non-pharmacological intervention on sleep, activity and fatigue in patients receiving peritoneal dialysis by the use of both actigraphy registration and self-assessed questionnaires. BACKGROUND Insomnia is estimated to affect up to 60% of haemo- and peritoneal dialysis patients. It is associated with two common uremic symptoms, pruritus and restless legs syndrome. To our knowledge, no interventions have been evaluated by actigraphy. DESIGN A prospective multiple baseline single-case experimental design. METHODS Two women and seven men with sleep problems, 48-77 years, treated with PD participated in a 17-week study from January 2009 to February 2011. Two interventions were separately implemented. First, a pressure-relieving mattress and second, a four week individual sleep hygiene and sleep scheduling intervention. The two interventions were evaluated both objectively by actigraphy and subjectively by questionnaires. RESULTS A total of 315 sleep-wake cycles from nine individuals were evaluated. Three patients improved clinically significantly in five or more of the nine outcomes, i.e. sleep onset latency, nocturnal sleep duration, numbers and duration of napping, movement and fragmentation index, number of steps, metabolic equivalent unit, sleep efficiency and fatigue. The other six patients also showed improvements but to a lesser degree. Physical activity advice was the intervention that yielded most sleep improvements. CONCLUSIONS This study illuminates the need for regular assessment of sleep and tiredness. It also demonstrates how a non-pharmacological treatment and self-management can be applied with renal supportive care to improve sleep quality. RELEVANCE TO CLINICAL PRACTICE This study is a clinical example of a non-pharmacological intervention with supportive care and self-management. This model can improve health and reduce the pharmacological burden because hypnotics can be replaced by sleep hygiene self-care activities.
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Affiliation(s)
- Pia Yngman-Uhlin
- Division of Nursing Science, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University, Linköping, Sweden.
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Hursel R, Gonnissen HKJ, Rutters F, Martens EAP, Westerterp-Plantenga MS. Disadvantageous shift in energy balance is primarily expressed in high-quality sleepers after a decline in quality sleep because of disturbance. Am J Clin Nutr 2013; 98:367-73. [PMID: 23803894 DOI: 10.3945/ajcn.112.054924] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Epidemiologic studies have shown an inverse or U-shaped relation between sleep duration and body mass index (BMI; in kg/m(2)). Moreover, associations between energy balance (EB) and characteristics of quality sleep (QS) have recently been reported. OBJECTIVE We assessed the relation between total energy expenditure (TEE) as well as substrate oxidation and QS after disturbed compared with nondisturbed sleep in EB. DESIGN Fifteen healthy men (mean ± SD BMI: 24.1 ± 1.9; age: 23.7 ± 3.5 y) were included in a randomized crossover study. TEE and substrate oxidation were measured twice for 48 h in a respiration chamber, whereas slow-wave sleep (SWS), rapid eye movement (REM)-sleep, total sleeping time (TST), sleep stage 2 (S2), and QS [(SWS + REM) ÷ TST × 100%] were determined by using electroencephalography. During 2 nights, sleep (2330-0730) was either disturbed or nondisturbed (control). RESULTS Positive correlations were shown for TEE, activity-induced energy expenditure corrected for body mass (AEE/BM), respiratory quotient (RQ), and carbohydrate oxidation with QS and SWS during nondisturbed sleep. Fat oxidation was inversely correlated with QS and SWS. RQ and carbohydrate oxidation were inversely related to REM sleep. During the disturbed condition SWS, REM, TST, and S2 were reduced, and positive correlations were shown between TEE and AEE/BM with QS. The reduction in QS was stronger in high-quality sleepers; QS reduction was positively associated with increases in energy intake, TEE, and EB. CONCLUSION A disadvantageous shift in energy balance is primarily expressed in high-quality sleepers after a decline in QS because of disturbance, implying that good sleepers are most liable to a positive energy balance because of sleep disturbance. This trial was registered at ISRCTN as NTR1919.
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Affiliation(s)
- Rick Hursel
- Department of Human Biology, Nutrition and Toxicology Research Institute Maastricht, Maastricht University, Maastricht, Netherlands.
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50
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Ekstedt M, Nyberg G, Ingre M, Ekblom Ö, Marcus C. Sleep, physical activity and BMI in six to ten-year-old children measured by accelerometry: a cross-sectional study. Int J Behav Nutr Phys Act 2013; 10:82. [PMID: 23800204 PMCID: PMC3691618 DOI: 10.1186/1479-5868-10-82] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2012] [Accepted: 06/11/2013] [Indexed: 11/24/2022] Open
Abstract
Background The aim of this study is to describe the relationship between objective measures of sleep, physical activity and BMI in Swedish pre-adolescents. The day-to-day association between physical activity and sleep quality as well as week-day and weekend pattern of sleep is also described. Method We conducted a cross sectional study consisted of a cohort of 1.231 children aged six to ten years within the Stockholm county area. Sleep and physical activity were measured by accelerometry during seven consecutive days. Outcome measures are total sleep time, sleep efficiency, sleep start and sleep end; physical activity intensity divided into: sedentary (<1.5 METS), light (1.5 to 3 METS) and moderate-to-vigorous (> 3 METS); and Body Mass Index standard deviations score, BMIsds. Results Total sleep time decreased with increasing age, and was shorter in boys than girls on both weekdays and weekends. Late bedtime but consistent wake-up time during weekends made total sleep time shorter on weekends than on weekdays. Day-to-day within-subject analysis revealed that moderate-to-vigorous intense physical activity promoted an increased sleep efficiency the following night (CI < 0.001 to 0.047), while total sleep time was not affected (CI -0.003 to 0.043). Neither sleep duration (CI -0.024 to 0.022) nor sleep efficiency (CI -0.019 to 0.028) affected mean physical activity level the subsequent day. The between-subject analysis indicates that the sleep of children characterized by high moderate-to-vigorous physical activity during the day was frequently interrupted (SE = -.23, P < .01). A negative association between BMIsds and sleep duration was found (-.10, p < .01). Conclusions Short sleep duration was associated with high BMI in six to ten year old children. This study underscores the importance of consistent bedtimes throughout the week for promoting sleep duration in preadolescents. Furthermore, this study suggests that a large proportion of intensive physical activity during the day might promote good sleep quality.
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Affiliation(s)
- Mirjam Ekstedt
- Department of Clinical Science, Intervention and Technology, Division of Pediatrics, Karolinska Institutet, Stockholm, Sweden.
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