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Li M, Sun Z, Sun H, Zhao G, Leng B, Shen T, Xue S, Hou H, Li Z, Zhang J. Paroxysmal slow wave events are associated with cognitive impairment in patients with obstructive sleep apnea. Alzheimers Res Ther 2022; 14:200. [PMID: 36585689 PMCID: PMC9801625 DOI: 10.1186/s13195-022-01153-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 12/25/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Increasing evidence has supported a link between obstructive sleep apnea (OSA) and cognition, and blood-brain barrier (BBB) dysfunction which can be reflected by paroxysmal slow wave events (PSWEs) may be a potential mechanism. The purpose of our study was to investigate the correlation between the PSWEs and cognitive impairment in patients with OSA, with a focus on the possible mechanism. METHODS In total, 339 subjects with subjective snoring complaints from the Sleep Medicine Center underwent magnetic resonance imaging and whole-night polysomnography. OSA was defined as apnea-hypopnea index (AHI) ≥ 5 events/h. MCI was defined as the MoCA < 26 and met the criteria: (1) subjective cognitive impairment; (2) objective impairment in one or more cognitive domains; (3) slightly impaired complex instrumental daily abilities, but independent daily living abilities; and (4) no dementia. The PSWEs calculated by self-developed Python scripts were defined for EEG recordings as a median power frequency of < 6 Hz for more than five consecutive seconds. Serum cyclophilin A (CyPA) and matrix metalloproteinase-9 (MMP-9) levels and amyloid-β 42 levels in neuron-derived exosomes were determined. The participants who received continuous positive airway pressure (CPAP) were followed up and their PSWEs were recalculated after 1 year of treatment. RESULTS A total of 339 participants were divided into the OSA+MCI group (n = 157), OSA-MCI group (n = 118), and controls (normal cognitive state without OSA) (n = 64). The total PSWEs and the occurrence per minute of PSWEs at stage REM in the OSA+MCI group were higher than those in the OSA-MCI and control groups. The duration ratio of PSWEs at stage REM in the OSA+MCI group significantly increased. The total PSWEs and PSWEs at the F4-M1, O1-M2, and O2-M1 channels in stage REM were independently associated with cognitive impairment in OSA patients. There were positive correlations between the PSWEs and serum CyPA and MMP-9 levels in patients with OSA. The mediation analysis showed that the relationship between mean SaO2 and percentage of sleep time spent with oxygen saturation <90% with MoCA scores was mediated by the total PSWEs (proportion of mediation 77.89% and 82.89%). The PSWEs were negatively correlated with global cognitive performance and cognitive subdomains. After 1 year of CPAP treatment, the total PSWEs, PSWEs in stage REM, and serum CyPA and MMP-9 levels decreased significantly, and MoCA scores were improved compared with baseline. CONCLUSIONS The PSWEs were implicated in cognitive impairment in patients with OSA, and the mechanisms of cognitive impairment due to hypoxia in OSA patients could be BBB dysfunction. The PSWEs can be used as a marker of cognitive impairment in patients with OSA. TRIAL REGISTRATION This trial is registered on the Chinese Clinical Trial Registry, number ChiCTR1900021544. The trial was registered on February 27, 2019.
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Affiliation(s)
- Mengfan Li
- grid.27255.370000 0004 1761 1174Department of Neurology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, 264200 Shandong China
| | - Zhuoran Sun
- grid.27255.370000 0004 1761 1174Department of Neurology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, 264200 Shandong China
| | - Hairong Sun
- grid.27255.370000 0004 1761 1174Department of Neurology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, 264200 Shandong China
| | - Guochen Zhao
- grid.19373.3f0000 0001 0193 3564School of Ocean Engineering, Harbin Institute of Technology at Weihai, Weihai, 264209 Shandong China
| | - Bing Leng
- grid.27255.370000 0004 1761 1174Department of Neurology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, 264200 Shandong China
| | - Tengqun Shen
- grid.27255.370000 0004 1761 1174Department of Resident Standardized Training Management, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, 264200 Shandong China
| | - Song Xue
- grid.268079.20000 0004 1790 6079Weifang Medical University, Weifang, 261053 Shandong China
| | - Huimin Hou
- grid.27255.370000 0004 1761 1174Department of Radiology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, 264200 Shandong China
| | - Zhenguang Li
- grid.27255.370000 0004 1761 1174Department of Neurology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, 264200 Shandong China
| | - Jinbiao Zhang
- grid.27255.370000 0004 1761 1174Department of Neurology, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai, 264200 Shandong China
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Proost R, Lagae L, Van Paesschen W, Jansen K. Sleep in children with refractory epilepsy and epileptic encephalopathies: A systematic review of literature. Eur J Paediatr Neurol 2022; 38:53-61. [PMID: 35395626 DOI: 10.1016/j.ejpn.2022.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 03/14/2022] [Accepted: 03/25/2022] [Indexed: 10/18/2022]
Abstract
Children with epilepsy have more sleep disorders compared to healthy children. The bidirectional interaction between epilepsy and sleep is not completely understood. However, disruption of sleep architecture during childhood may have consequences for cognitive development. As children with drug-refractory epilepsy often have intellectual disability, sleep disruption could be an important contributing factor in severity of their cognitive impairment. To better understand these interactions, sleep architecture in children with drug-refractory epilepsy and epileptic encephalopathies should be investigated. In this review, we conducted a systematic literature search on this topic. Articles that investigated sleep macro- and/or microstructure by means of electroencephalogram/polysomnography were included, as well as articles that used validated questionnaires. Sixteen articles were reviewed, eight of which used polysomnography. Only 2 articles examined sleep in children with epileptic encephalopathies. Consistent findings on measures of sleep architecture were a reduction in REM percentage and an increase in sleep fragmentation when comparing drug-refractory patients with non-refractory and healthy subjects. The findings on slow wave sleep were less clear. Studies with questionnaires unambiguously confirmed subjectively more sleep problems in children with drug-refractory epilepsy. This is the first review of literature in this patient population. More good quality sleep studies in children with drug-refractory epilepsy are warranted. The use of wearables in the home setting together with automatic sleep staging could provide more insights.
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Affiliation(s)
- R Proost
- Department of Pediatric Neurology, University Hospital Leuven, Leuven, Belgium.
| | - L Lagae
- Department of Pediatric Neurology, University Hospital Leuven, Leuven, Belgium
| | - W Van Paesschen
- Department of Neurology, University Hospital Leuven, Leuven, Belgium
| | - K Jansen
- Department of Pediatric Neurology, University Hospital Leuven, Leuven, Belgium.
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Esposito M, Antinolfi L, Carotenuto M. Neuropsychological Profile in Pediatric Migraine without Aura: A Pilot Study. Brain Sci 2021; 11:brainsci11121582. [PMID: 34942884 PMCID: PMC8699751 DOI: 10.3390/brainsci11121582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/15/2021] [Accepted: 11/23/2021] [Indexed: 11/30/2022] Open
Abstract
Despite the high prevalence of headache in developmental age, current reports about its neuropsychological effects are still lacking. The aim of the present pilot study is to assess the neuropsychological skills among children affected by migraine without aura (MwoA). Fifteen children (7M/8F) (mean age 10.73 ± 2.13) with MwoA, consecutively referred to the Center for Childhood Headache at Università degli Studi della Campania “Luigi Vanvitelli”, underwent the Italian version of the NEPSY-2 after cognitive evaluation. Moreover, to assess the pain level and disability grade during daily activity, the VAS and PedMIDAS scales were used. MwoA children were comparable with the control group of 38 children with respect to age, gender, language, and education level. Written informed consent was obtained from all parents and from children directly, when appropriate. MwoA children differed from controls significantly among the NEPSY-2 subscales, with a relevant relationship between the frequency and intensity of the attacks. In conclusion, the results of the present pilot study may suggest that MwoA could impact significantly neuropsychological functioning in children.
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Migueis DP, Lopes MC, Ignacio PSD, Thuler LCS, Araujo-Melo MH, Spruyt K, Lacerda GCB. A systematic review and meta-analysis of the cyclic alternating pattern across the lifespan. Sleep Med 2021; 85:25-37. [PMID: 34271180 DOI: 10.1016/j.sleep.2021.06.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/13/2021] [Accepted: 06/19/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Cyclic alternating pattern (CAP) is the electroencephalogram (EEG) pattern described as a marker of sleep instability and assessed by NREM transient episodes in sleep EEG. It has been associated with brain maturation. The aim of this review was to evaluate the normative data of CAP parameters according to the aging process in healthy subjects through a systematic review and meta-analysis. METHODS Two authors independently searched databases using PRISMA guidelines. Discrepancies were reconciled by a third reviewer. Subgroup analysis and tests for heterogeneity were conducted. RESULTS Of 286 studies, 10 submitted a total of 168 healthy individuals to CAP analysis. Scoring of CAP can begin at 3 months of life, when K-complexes, delta bursts, or spindles can be recognized. Rate of CAP increased with age, mainly during the first 2 years of life, then decreased in adolescence, and increased in the elderly. The A1 CAP subtype and CAP rate were high in school-aged children during slow-wave sleep (SWS). A1 CAP subtypes were significantly more numerous in adolescents compared with other groups, while the elderly showed the highest amounts of A2 and A3 CAP subtypes. Our meta-analysis registered the lowest CAP rate in infants younger than 2 years old and the highest in the elderly. CONCLUSIONS This review summarized the normative data of CAP in NREM sleep during the aging process. The CAP rate increased with age and sleep depth, especially during SWS. Parameters of CAP may reflect gender hormonal effects and neuroplasticity. More reports on CAP subtypes are needed for their reference values establishment.
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Affiliation(s)
- D P Migueis
- PPGNEURO, Gaffree and Guinle University Hospital / Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil; Antonio Pedro University Hospital / Fluminense Federal University, Niterói, Brazil.
| | - M C Lopes
- Child and Adolescent Affective Disorder Program (PRATA), Department and Institute of Psychiatry at University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - P S D Ignacio
- PPGNEURO, Gaffree and Guinle University Hospital / Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - L C S Thuler
- National Cancer Institute, Rio de Janeiro, Brazil
| | - M H Araujo-Melo
- PPGNEURO, Gaffree and Guinle University Hospital / Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - K Spruyt
- INSERM, Université de Paris, NeuroDiderot, France
| | - G C B Lacerda
- PPGNEURO, Gaffree and Guinle University Hospital / Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
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Reda F, Gorgoni M, D’Atri A, Scarpelli S, Carpi M, Di Cola E, Menghini D, Vicari S, Stella G, De Gennaro L. Sleep-Related Declarative Memory Consolidation in Children and Adolescents with Developmental Dyslexia. Brain Sci 2021; 11:73. [PMID: 33429959 PMCID: PMC7826880 DOI: 10.3390/brainsci11010073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 02/05/2023] Open
Abstract
Sleep has a crucial role in memory processes, and maturational changes in sleep electrophysiology are involved in cognitive development. Albeit both sleep and memory alterations have been observed in Developmental Dyslexia (DD), their relation in this population has been scarcely investigated, particularly concerning topographical aspects. The study aimed to compare sleep topography and associated sleep-related declarative memory consolidation in participants with DD and normal readers (NR). Eleven participants with DD and 18 NR (9-14 years old) underwent a whole-night polysomnography. They were administered a word pair task before and after sleep to assess for declarative memory consolidation. Memory performance and sleep features (macro and microstructural) were compared between the groups, and the intercorrelations between consolidation rate and sleep measures were assessed. DD showed a deeper worsening in memory after sleep compared to NR and reduced slow spindles in occipito-parietal and left fronto-central areas. Our results suggest specific alterations in local sleep EEG (i.e., sleep spindles) and in sleep-dependent memory consolidation processes in DD. We highlight the importance of a topographical approach, which might shed light on potential alteration in regional cortical oscillation dynamics in DD. The latter might represent a target for therapeutic interventions aimed at enhancing cognitive functioning in DD.
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Affiliation(s)
- Flaminia Reda
- Department of Psychology, Sapienza University of Rome, 00185 Rome, Italy; (F.R.); (M.G.); (M.C.); (E.D.C.)
| | - Maurizio Gorgoni
- Department of Psychology, Sapienza University of Rome, 00185 Rome, Italy; (F.R.); (M.G.); (M.C.); (E.D.C.)
| | - Aurora D’Atri
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy;
| | | | - Matteo Carpi
- Department of Psychology, Sapienza University of Rome, 00185 Rome, Italy; (F.R.); (M.G.); (M.C.); (E.D.C.)
| | - Erica Di Cola
- Department of Psychology, Sapienza University of Rome, 00185 Rome, Italy; (F.R.); (M.G.); (M.C.); (E.D.C.)
| | - Deny Menghini
- Child and Adolescent Psychiatry Unit, IRCCS Bambino Gesù Children’s Hospital, 00165 Rome, Italy; (D.M.); (S.V.)
| | - Stefano Vicari
- Child and Adolescent Psychiatry Unit, IRCCS Bambino Gesù Children’s Hospital, 00165 Rome, Italy; (D.M.); (S.V.)
- Department of Life Science and Public Health, Catholic University of the Sacred Heart, 00153 Rome, Italy
| | - Giacomo Stella
- Department of Education and Human Sciences, University of Modena and Reggio Emilia, 42121 Reggio Emilia, Italy;
| | - Luigi De Gennaro
- Department of Psychology, Sapienza University of Rome, 00185 Rome, Italy; (F.R.); (M.G.); (M.C.); (E.D.C.)
- IRCCS Fondazione Santa Lucia, 00179 Rome, Italy;
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Colombo J, Carlson SE, Algarín C, Reyes S, Chichlowski M, Harris CL, Wampler JL, Peirano P, Berseth CL. Developmental effects on sleep-wake patterns in infants receiving a cow's milk-based infant formula with an added prebiotic blend: a Randomized Controlled Trial. Pediatr Res 2021; 89:1222-1231. [PMID: 32615579 PMCID: PMC8119237 DOI: 10.1038/s41390-020-1044-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 05/10/2020] [Accepted: 06/03/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND Few studies have evaluated nutritive effects of prebiotics on infant behavior state, physiology, or metabolic status. METHODS In this double-blind randomized study, infants (n = 161) received cow's milk-based infant formula (Control) or similar formula with an added prebiotic blend (polydextrose and galactooligosaccharides [PDX/GOS]) from 14-35 to 112 days of age. Infant wake behavior (crying/fussing, awake/content) and 24-h sleep-wake actograms were analyzed (Baseline, Days 70 and 112). Salivary cortisol was immunoassayed (Days 70 and 112). In a subset, exploratory stool 16S ribosomal RNA-sequencing was analyzed (Baseline, Day 112). RESULTS One hundred and thirty-one infants completed the study. Average duration of crying/fussing episodes was similar at Baseline, significantly shorter for PDX/GOS vs. Control at Day 70, and the trajectory continued at Day 112. Latency to first and second nap was significantly longer for PDX/GOS vs. Control at Day 112. Cortisol awakening response was demonstrated at Days 70 and 112. Significant stool microbiome beta-diversity and individual taxa abundance differences were observed in the PDX/GOS group. CONCLUSIONS Results indicate faster consolidation of daytime waking state in infants receiving prebiotics and support home-based actigraphy to assess early sleep-wake patterns. A prebiotic effect on wake organization is consistent with influence on the gut-brain axis and warrants further investigation. IMPACT Few studies have evaluated nutritive effects of prebiotics on infant behavior state, cortisol awakening response, sleep-wake entrainment, and gut microbiome. Faster consolidation of daytime waking state was demonstrated in infants receiving a prebiotic blend in infant formula through ~4 months of age. Shorter episodes of crying were demonstrated at ~2 months of age (time point corresponding to age/developmental range associated with peak crying) in infants receiving formula with added prebiotics. Results support home-based actigraphy as a suitable method to assess early sleep-wake patterns. Prebiotic effect on wake organization is consistent with influence on the gut-brain axis and warrants further investigation.
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Affiliation(s)
- John Colombo
- Schiefelbusch Institute for Life Span Studies and Department of Psychology, University of Kansas, Lawrence, KS, USA.
| | - Susan E. Carlson
- grid.412016.00000 0001 2177 6375Department of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS USA
| | - Cecilia Algarín
- grid.443909.30000 0004 0385 4466Sleep and Functional Neurobiology Laboratory, Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| | - Sussanne Reyes
- grid.443909.30000 0004 0385 4466Sleep and Functional Neurobiology Laboratory, Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| | - Maciej Chichlowski
- Nutrition Science, Department of Medical Affairs, Mead Johnson Nutrition, 2400 West Lloyd Expy, Evansville, IN 47721 USA
| | - Cheryl L. Harris
- Clinical Research, Department of Medical Affairs, Mead Johnson Nutrition, 2400 West Lloyd Expy, Evansville, IN 47721 USA
| | - Jennifer L. Wampler
- Clinical Research, Department of Medical Affairs, Mead Johnson Nutrition, 2400 West Lloyd Expy, Evansville, IN 47721 USA
| | - Patricio Peirano
- grid.443909.30000 0004 0385 4466Sleep and Functional Neurobiology Laboratory, Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| | - Carol Lynn Berseth
- Clinical Research, Department of Medical Affairs, Mead Johnson Nutrition, 2400 West Lloyd Expy, Evansville, IN 47721 USA
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Gorgoni M, Scarpelli S, Reda F, De Gennaro L. Sleep EEG oscillations in neurodevelopmental disorders without intellectual disabilities. Sleep Med Rev 2020; 49:101224. [PMID: 31731102 DOI: 10.1016/j.smrv.2019.101224] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 08/29/2019] [Accepted: 10/15/2019] [Indexed: 02/08/2023]
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Cysarz D, Linhard M, Seifert G, Edelhäuser F. Sleep Instabilities Assessed by Cardiopulmonary Coupling Analysis Increase During Childhood and Adolescence. Front Physiol 2018; 9:468. [PMID: 29867529 PMCID: PMC5951979 DOI: 10.3389/fphys.2018.00468] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 04/13/2018] [Indexed: 11/24/2022] Open
Abstract
The electrocardiogram-based cardiopulmonary coupling (CPC) technique may be used to track sleep instabilities. With progressing age, maturational changes during childhood and adolescence affect sleep. The objective was to assess developmental changes in sleep instabilities in a natural setting. ECGs during nighttime sleep on regular school days were recorded from 363 subjects aged 4 to 22 years (204 females). The estimated total sleep time (ETST) decreased from 598 to 445 min during childhood and adolescence. Stable sleep linearly decreased with progressing age (high frequency coupling (HFC): 70–48% ETST). Unstable sleep [low frequency coupling (LFC): 9–19% ETST], sleep fragmentation or disordered breathing (elevated LFC: 4–12% ETST), and wake/REM states [very low frequency coupling (VLFC): 20–32% ETST] linearly increased with age. Hence, with progressing age the sleep of children and adolescents shortens, becomes more unstable and is more often affected by fragmentation or sleep disordered breathing, especially in the age group >13 years. It remains to be clarified whether some of the changes are caused by a social jetlag, i.e., the misalignment of body clock and social time especially in adolescents.
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Affiliation(s)
- Dirk Cysarz
- Integrated Curriculum for Anthroposophic Medicine, Institute of Integrative Medicine, University of Witten/Herdecke, Witten, Germany
| | - Maijana Linhard
- Department of Pediatric Oncology/Hematology, Otto-Heubner-Center for Pediatric and Adolescent Medicine, Charité Universitätsmedizin, Berlin, Germany
| | - Georg Seifert
- Department of Pediatric Oncology/Hematology, Otto-Heubner-Center for Pediatric and Adolescent Medicine, Charité Universitätsmedizin, Berlin, Germany
| | - Friedrich Edelhäuser
- Integrated Curriculum for Anthroposophic Medicine, Institute of Integrative Medicine, University of Witten/Herdecke, Witten, Germany
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Electrophysiological and microstructural features of sleep in children at high risk for depression: a preliminary study. Sleep Med 2017; 36:95-103. [DOI: 10.1016/j.sleep.2017.05.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 05/02/2017] [Accepted: 05/03/2017] [Indexed: 01/29/2023]
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Thompson RS, Roller R, Mika A, Greenwood BN, Knight R, Chichlowski M, Berg BM, Fleshner M. Dietary Prebiotics and Bioactive Milk Fractions Improve NREM Sleep, Enhance REM Sleep Rebound and Attenuate the Stress-Induced Decrease in Diurnal Temperature and Gut Microbial Alpha Diversity. Front Behav Neurosci 2017; 10:240. [PMID: 28119579 PMCID: PMC5223485 DOI: 10.3389/fnbeh.2016.00240] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 12/09/2016] [Indexed: 01/09/2023] Open
Abstract
Severe, repeated or chronic stress produces negative health outcomes including disruptions of the sleep/wake cycle and gut microbial dysbiosis. Diets rich in prebiotics and glycoproteins impact the gut microbiota and may increase gut microbial species that reduce the impact of stress. This experiment tested the hypothesis that consumption of dietary prebiotics, lactoferrin (Lf) and milk fat globule membrane (MFGM) will reduce the negative physiological impacts of stress. Male F344 rats, postnatal day (PND) 24, received a diet with prebiotics, Lf and MFGM (test) or a calorically matched control diet. Fecal samples were collected on PND 35/70/91 for 16S rRNA sequencing to examine microbial composition and, in a subset of rats; Lactobacillus rhamnosus was measured using selective culture. On PND 59, biotelemetry devices were implanted to record sleep/wake electroencephalographic (EEG). Rats were exposed to an acute stressor (100, 1.5 mA, tail shocks) on PND 87 and recordings continued until PND 94. Test diet, compared to control diet, increased fecal Lactobacillus rhamnosus colony forming units (CFU), facilitated non-rapid eye movement (NREM) sleep consolidation (PND 71/72) and enhanced rapid eye movement (REM) sleep rebound after stressor exposure (PND 87). Rats fed control diet had stress-induced reductions in alpha diversity and diurnal amplitude of temperature, which were attenuated by the test diet (PND 91). Stepwise multiple regression analysis revealed a significant linear relationship between early-life Deferribacteres (PND 35) and longer NREM sleep episodes (PND 71/72). A diet containing prebiotics, Lf and MFGM enhanced sleep quality, which was related to changes in gut bacteria and modulated the impact of stress on sleep, diurnal rhythms and the gut microbiota.
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Affiliation(s)
- Robert S Thompson
- Stress Physiology Laboratory, Department of Integrative Physiology, University of Colorado at BoulderBoulder, CO, USA; The Center for NeuroscienceUniversity of Colorado at Boulder, Boulder, CO, USA
| | - Rachel Roller
- Stress Physiology Laboratory, Department of Integrative Physiology, University of Colorado at BoulderBoulder, CO, USA; The Center for NeuroscienceUniversity of Colorado at Boulder, Boulder, CO, USA
| | - Agnieszka Mika
- Stress Physiology Laboratory, Department of Integrative Physiology, University of Colorado at BoulderBoulder, CO, USA; The Center for NeuroscienceUniversity of Colorado at Boulder, Boulder, CO, USA
| | | | - Rob Knight
- Department of Pediatrics, University of California School of Medicine San Diego, CA, USA
| | - Maciej Chichlowski
- Pediatric Nutrition Institute, Mead Johnson Nutrition Evansville, IN, USA
| | - Brian M Berg
- Pediatric Nutrition Institute, Mead Johnson Nutrition Evansville, IN, USA
| | - Monika Fleshner
- Stress Physiology Laboratory, Department of Integrative Physiology, University of Colorado at BoulderBoulder, CO, USA; The Center for NeuroscienceUniversity of Colorado at Boulder, Boulder, CO, USA
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Carotenuto M, Esposito M, Cortese S, Laino D, Verrotti A. Children with developmental dyslexia showed greater sleep disturbances than controls, including problems initiating and maintaining sleep. Acta Paediatr 2016; 105:1079-82. [PMID: 27173764 DOI: 10.1111/apa.13472] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 03/02/2016] [Accepted: 05/10/2016] [Indexed: 12/01/2022]
Abstract
AIM Although there have been frequent clinical reports about sleep disturbances in children with learning disabilities, no data are available about the prevalence of sleep disturbances in children with developmental dyslexia (DD). This study evaluated sleep disturbances in children with DD referred to a hospital clinic and compared their scores with healthy controls. METHODS We consecutively enrolled 147 children (66% male) aged 10.26 ± 2.63 years who were referred by clinical paediatricians to the Clinic for Child and Adolescent Neuropsychiatry at the Second University of Naples with DD and 766 children without DD (60% male) aged 10.49 ± 2.39 years recruited from schools in the same urban area. Sleep disturbances were assessed with the Sleep Disturbances Scale for Children (SDSC), which was filled out by the children's main carers. RESULTS Compared with the controls, the children with DD showed significantly higher rates of above threshold scores on the total SDSC score (p < 0.001) and on the subscales for disorders in initiating and maintaining sleep (p < 0.001), sleep breathing disorders (p < 0.001) and disorders of arousal (p < 0.001). CONCLUSION Sleep disorders were significantly more frequent in children with DD than in healthy controls. A possible relationship between dyslexia and sleep disorders may have relevant clinical implications.
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Affiliation(s)
- M Carotenuto
- Sleep Clinic for Developmental Age; Department of Mental Health; Physical and Preventive Medicine; Second University of Naples; Naples Italy
| | - M Esposito
- Sleep Clinic for Developmental Age; Department of Mental Health; Physical and Preventive Medicine; Second University of Naples; Naples Italy
| | - S Cortese
- Department of Psychology; Developmental Brain-Behavior Laboratory; University of Southampton; Southampton UK
- New York University Child Study Center; New York NY USA
- IRCCS Stella Maris; Calambrone Pisa Italy
| | - D Laino
- Department of Pediatrics; University of Perugia; Perugia Italy
| | - A Verrotti
- Department of Pediatrics; University of L'Aquila; Ospedale San Salvatore; L'Aquila Italy
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Maestri M, Carnicelli L, Tognoni G, Di Coscio E, Giorgi FS, Volpi L, Economou NT, Ktonas P, Ferri R, Bonuccelli U, Bonanni E. Non-rapid eye movement sleep instability in mild cognitive impairment: a pilot study. Sleep Med 2015; 16:1139-45. [DOI: 10.1016/j.sleep.2015.04.027] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 04/01/2015] [Accepted: 04/27/2015] [Indexed: 01/29/2023]
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13
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Halász P, Bódizs R, Parrino L, Terzano M. Two features of sleep slow waves: homeostatic and reactive aspects – from long term to instant sleep homeostasis. Sleep Med 2014; 15:1184-95. [DOI: 10.1016/j.sleep.2014.06.006] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 06/18/2014] [Accepted: 06/19/2014] [Indexed: 11/30/2022]
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