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1.
Accid Anal Prev ; 202: 107609, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38701560

RESUMEN

Self-assessed driving ability may differ from actual driving performance, leading to poor calibration (i.e., differences between self-assessed driving ability and actual performance), increased risk of accidents and unsafe driving behaviour. Factors such as sleep restriction and sedentary behaviour can impact driver workload, which influences driver calibration. This study aims to investigate how sleep restriction and prolonged sitting impact driver workload and driver calibration to identify strategies that can lead to safer and better calibrated drivers. Participants (n = 84, mean age = 23.5 ± 4.8, 49 % female) undertook a 7-day laboratory study and were randomly allocated to a condition: sitting 9-h sleep opportunity (Sit9), breaking up sitting 9-h sleep opportunity (Break9), sitting 5-h sleep opportunity (Sit5) and breaking up sitting 5-h sleep opportunity (Break5). Break9 and Break5 conditions completed 3-min of light-intensity walking on a treadmill every 30 min between 09:00-17:00 h, while participants in Sit9 and Sit5 conditions remained seated. Each participant completed a 20-min simulated commute in the morning and afternoon each day and completed subjective assessments of driving ability and perceived workload before and after each commute. Objective driving performance was assessed using a driving simulator measuring speed and lane performance metrics. Driver calibration was analysed using a single component and 3-component Brier Score. Correlational matrices were conducted as an exploratory analysis to understand the strength and direction of the relationship between subjective and objective driving outcomes. Analyses revealed participants in Sit9 and Break9 were significantly better calibrated for lane variability, lane position and safe zone-lane parameters at both time points (p < 0.0001) compared to Sit5 and Break5. Break5 participants were better calibrated for safe zone-speed and combined safe zone parameters (p < 0.0001) and speed variability at both time points (p = 0.005) compared to all other conditions. Analyses revealed lower perceived workload scores at both time points for Sit9 and Break9 participants compared to Sit5 and Break5 (p = <0.001). Breaking up sitting during the day may reduce calibration errors compared to sitting during the day for speed keeping parameters. Future studies should investigate if different physical activity frequency and intensity can reduce calibration errors, and better align a driver's self-assessment with their actual performance.


Asunto(s)
Conducción de Automóvil , Sedestación , Privación de Sueño , Carga de Trabajo , Humanos , Femenino , Masculino , Conducción de Automóvil/psicología , Adulto , Adulto Joven , Autoevaluación (Psicología) , Conducta Sedentaria , Simulación por Computador , Caminata
2.
Curr Psychiatry Rep ; 26(5): 229-239, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38700836

RESUMEN

PURPOSE OF REVIEW: The goal of this paper was to highlight the degree to which sleep, behavioral health, and leader involvement were interrelated using data from militaries in five English-speaking countries: Australia, Canada, New Zealand, the UK, and the United States. RECENT FINDINGS: Many service members reported sleeping fewer than the recommended 7 h/night: 34.9%, 67.2%, and 77.2% of respondents from New Zealand, Canada, and the United States, respectively. Countries reporting shorter sleep duration also reported fewer insomnia-related difficulties, likely reflecting higher sleep pressure from chronic sleep loss. Across all countries, sleep problems were positively correlated with behavioral health symptoms. Importantly, leader promotion of healthy sleep was positively correlated with more sleep and negatively correlated with sleep problems and behavioral health symptoms. Insufficient sleep in the military is ubiquitous, with serious implications for the behavioral health and functioning of service members. Leaders should attend to these risks and examine ways to promote healthy sleep in service members.


Asunto(s)
Personal Militar , Humanos , Personal Militar/estadística & datos numéricos , Personal Militar/psicología , Nueva Zelanda , Estados Unidos/epidemiología , Australia/epidemiología , Canadá/epidemiología , Reino Unido/epidemiología , Privación de Sueño , Liderazgo
3.
Nat Commun ; 15(1): 3834, 2024 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-38714741

RESUMEN

Sleep disorders increase the risk and mortality of heart disease, but the brain-heart interaction has not yet been fully elucidated. Cuproptosis is a copper-dependent type of cell death activated by the excessive accumulation of intracellular copper. Here, we showed that 16 weeks of sleep fragmentation (SF) resulted in elevated copper levels in the male mouse heart and exacerbated myocardial ischemia-reperfusion injury with increased myocardial cuproptosis and apoptosis. Mechanistically, we found that SF promotes sympathetic overactivity, increases the germination of myocardial sympathetic nerve terminals, and increases the level of norepinephrine in cardiac tissue, thereby inhibits VPS35 expression and leads to impaired ATP7A related copper transport and copper overload in cardiomyocytes. Copper overload further leads to exacerbated cuproptosis and apoptosis, and these effects can be rescued by excision of the sympathetic nerve or administration of copper chelating agent. Our study elucidates one of the molecular mechanisms by which sleep disorders aggravate myocardial injury and suggests possible targets for intervention.


Asunto(s)
Apoptosis , Cobre , Ratones Endogámicos C57BL , Daño por Reperfusión Miocárdica , Miocitos Cardíacos , Privación de Sueño , Animales , Miocitos Cardíacos/metabolismo , Miocitos Cardíacos/patología , Masculino , Cobre/metabolismo , Daño por Reperfusión Miocárdica/metabolismo , Daño por Reperfusión Miocárdica/patología , Ratones , Privación de Sueño/fisiopatología , Privación de Sueño/metabolismo , Privación de Sueño/complicaciones , ATPasas Transportadoras de Cobre/metabolismo , ATPasas Transportadoras de Cobre/genética , Norepinefrina/metabolismo , Norepinefrina/farmacología , Miocardio/metabolismo , Miocardio/patología , Sistema Nervioso Simpático/metabolismo , Modelos Animales de Enfermedad
4.
J Sports Sci ; 42(6): 527-536, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38695324

RESUMEN

This study aimed to investigate the association between physical activity, sedentary behaviour and chronic inflammation in short sleep adults. The study included 2,113 NHANES participants with self-reported insufficient sleep. C-reactive protein (CRP) was used as the inflammatory biomarker. Physical activity and sedentary behaviour were objectively measured by accelerometers. Weighted regression model, two - piecewise linear regression model, and restricted cubic splines were applied to evaluate associations mentioned above. An isotemporal substitution model was used to assess the modelled effects of replacing sedentary time (ST) with moderate-to-vigorous levels of physical activity (MVPA) or light physical activity (LPA). After adjusting for potential confounding factors, higher levels of ST and lower levels of LPA or MVPA were associated with higher CRP levels. Isotemporal substitution analysis indicated that replacing 30 minutes of ST with 30 minutes of MVPA was associated with a significant decrease in CRP levels. Saturation analysis suggested that the association between MVPA and CRP may plateau at over 20 minutes of MVPA per day. Findings of this study provides insight into the potential benefits of replacing ST with MVPA. This study also suggests that increasing MVPA beyond a certain point may not provide additional anti-inflammatory benefits in a short sleep population.


Asunto(s)
Acelerometría , Biomarcadores , Proteína C-Reactiva , Ejercicio Físico , Conducta Sedentaria , Humanos , Proteína C-Reactiva/metabolismo , Proteína C-Reactiva/análisis , Masculino , Ejercicio Físico/fisiología , Femenino , Persona de Mediana Edad , Adulto , Estados Unidos , Biomarcadores/sangre , Inflamación/sangre , Privación de Sueño/sangre , Privación de Sueño/fisiopatología , Encuestas Nutricionales , Estudios Transversales , Anciano , Factores de Tiempo
5.
BMC Med ; 22(1): 189, 2024 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-38715017

RESUMEN

BACKGROUND: Sleep loss is a common public health problem that causes hyperalgesia, especially that after surgery, which reduces the quality of life seriously. METHODS: The 48-h sleep restriction (SR) mouse model was created using restriction chambers. In vivo imaging, transmission electron microscopy (TEM), immunofluorescence staining and Western blot were performed to detect the status of the blood-spinal cord barrier (BSCB). Paw withdrawal mechanical threshold (PWMT) was measured to track mouse pain behavior. The role of infiltrating regulatory T cells (Tregs) and endothelial cells (ECs) in mouse glycolysis and BSCB damage were analyzed using flow cytometry, Western blot, CCK-8 assay, colorimetric method and lactate administration. RESULTS: The 48-h SR made mice in sleep disruption status and caused an acute damage to the BSCB, resulting in hyperalgesia and neuroinflammation in the spinal cord. In SR mice, the levels of glycolysis and glycolysis enzymes of ECs in the BSCB were found significantly decreased [CON group vs. SR group: CD31+Glut1+ cells: p < 0.001], which could cause dysfunction of ECs and this was confirmed in vitro. Increased numbers of infiltrating T cells [p < 0.0001] and Treg population [p < 0.05] were detected in the mouse spinal cord after 48-h SR. In the co-cultured system of ECs and Tregs in vitro, the competition of Tregs for glucose resulted in the glycolysis disorder of ECs [Glut1: p < 0.01, ENO1: p < 0.05, LDHα: p < 0.05; complete tubular structures formed: p < 0.0001; CCK8 assay: p < 0.001 on 24h, p < 0.0001 on 48h; glycolysis level: p < 0.0001]. An administration of sodium lactate partially rescued the function of ECs and relieved SR-induced hyperalgesia. Furthermore, the mTOR signaling pathway was excessively activated in ECs after SR in vivo and those under the inhibition of glycolysis or co-cultured with Tregs in vitro. CONCLUSIONS: Affected by glycolysis disorders of ECs due to glucose competition with infiltrating Tregs through regulating the mTOR signaling pathway, hyperalgesia induced by 48-h SR is attributed to neuroinflammation and damages to the barriers, which can be relieved by lactate supplementation.


Asunto(s)
Células Endoteliales , Glucosa , Hiperalgesia , Privación de Sueño , Médula Espinal , Linfocitos T Reguladores , Animales , Linfocitos T Reguladores/inmunología , Ratones , Glucosa/metabolismo , Células Endoteliales/metabolismo , Médula Espinal/metabolismo , Médula Espinal/patología , Masculino , Privación de Sueño/complicaciones , Glucólisis/fisiología , Modelos Animales de Enfermedad , Ratones Endogámicos C57BL
6.
Sci Rep ; 14(1): 10029, 2024 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-38693322

RESUMEN

Recent research suggests that insufficient sleep elevates the risk of obesity. Although the mechanisms underlying the relationship between insufficient sleep and obesity are not fully understood, preliminary evidence suggests that insufficient sleep may intensify habitual control of behavior, leading to greater cue-elicited food-seeking behavior that is insensitive to satiation. The present study tested this hypothesis using a within-individual, randomized, crossover experiment. Ninety-six adults underwent a one-night normal sleep duration (NSD) condition and a one-night total sleep deprivation (TSD) condition. They also completed the Pavlovian-instrumental transfer paradigm in which their instrumental responses for food in the presence and absence of conditioned cues were recorded. The sleep × cue × satiation interaction was significant, indicating that the enhancing effect of conditioned cues on food-seeking responses significantly differed across sleep × satiation conditions. However, this effect was observed in NSD but not TSD, and it disappeared after satiation. This finding contradicted the hypothesis but aligned with previous literature on the effect of sleep disruption on appetitive conditioning in animals-sleep disruption following learning impaired the expression of appetitive behavior. The present finding is the first evidence for the role of sleep in Pavlovian-instrumental transfer effects. Future research is needed to further disentangle how sleep influences motivational mechanisms underlying eating.


Asunto(s)
Condicionamiento Clásico , Estudios Cruzados , Privación de Sueño , Privación de Sueño/fisiopatología , Humanos , Masculino , Femenino , Adulto , Adulto Joven , Señales (Psicología) , Alimentos , Conducta Alimentaria/fisiología , Saciedad/fisiología , Condicionamiento Operante , Conducta Apetitiva/fisiología
8.
Brain Behav ; 14(5): e3515, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38702895

RESUMEN

INTRODUCTION: Maternal sleep deprivation (MSD), which induces inflammation and synaptic dysfunction in the hippocampus, has been associated with learning and memory impairment in offspring. Melatonin (Mel) has been shown to have anti-inflammatory, antioxidant, and neuroprotective function. However, the beneficial effect of Mel on MSD-induced cognitive impairment and its mechanisms are unknown. METHODS: In the present study, adult offspring suffered from MSD were injected with Mel (20 mg/kg) once a day during postnatal days 61-88. The cognitive function was evaluated by the Morris water maze test. Levels of proinflammatory cytokines were examined by enzyme-linked immunosorbent assay. The mRNA and protein levels of synaptic plasticity associated proteins were examined using reverse transcription-polymerase chain reaction and western blotting. RESULTS: The results showed that MSD impaired learning and memory in the offspring mice. MSD increased the levels of interleukin (IL)-1creIL-6, and tumor necrosis factor-α and decreased the expression levels of brain-derived neurotrophic factor, tyrosine kinase receptor B, postsynaptic density protein-95, and synaptophysin in the hippocampus. Furthermore, Mel attenuated cognitive impairment and restored markers of inflammation and synaptic plasticity to control levels. CONCLUSIONS: These findings indicated that Mel could ameliorate learning and memory impairment induced by MSD, and these beneficial effects were related to improvement in inflammation and synaptic dysfunction.


Asunto(s)
Hipocampo , Melatonina , Trastornos de la Memoria , Plasticidad Neuronal , Privación de Sueño , Animales , Melatonina/farmacología , Melatonina/administración & dosificación , Privación de Sueño/complicaciones , Privación de Sueño/tratamiento farmacológico , Privación de Sueño/fisiopatología , Ratones , Masculino , Hipocampo/metabolismo , Hipocampo/efectos de los fármacos , Femenino , Trastornos de la Memoria/tratamiento farmacológico , Trastornos de la Memoria/etiología , Trastornos de la Memoria/fisiopatología , Plasticidad Neuronal/efectos de los fármacos , Inflamación/tratamiento farmacológico , Inflamación/metabolismo , Embarazo , Privación Materna , Disfunción Cognitiva/etiología , Disfunción Cognitiva/tratamiento farmacológico , Disfunción Cognitiva/fisiopatología , Efectos Tardíos de la Exposición Prenatal/metabolismo , Efectos Tardíos de la Exposición Prenatal/fisiopatología , Factor Neurotrófico Derivado del Encéfalo/metabolismo , Enfermedades Neuroinflamatorias/tratamiento farmacológico
9.
Artículo en Inglés | MEDLINE | ID: mdl-38683718

RESUMEN

Sleep is vital to our daily activity. Lack of proper sleep can impair functionality and overall health. While stress is known for its detrimental impact on sleep quality, the precise effect of pre-sleep stress on subsequent sleep structure remains unknown. This study introduced a novel approach to study the pre-sleep stress effect on sleep structure, specifically slow-wave sleep (SWS) deficiency. To achieve this, we selected forehead resting EEG immediately before and upon sleep onset to extract stress-related neurological markers through power spectra and entropy analysis. These markers include beta/delta correlation, alpha asymmetry, fuzzy entropy (FuzzEn) and spectral entropy (SpEn). Fifteen subjects were included in this study. Our results showed that subjects lacking SWS often exhibited signs of stress in EEG, such as an increased beta/delta correlation, higher alpha asymmetry, and increased FuzzEn in frontal EEG. Conversely, individuals with ample SWS displayed a weak beta/delta correlation and reduced FuzzEn. Finally, we employed several supervised learning models and found that the selected neurological markers can predict subsequent SWS deficiency. Our investigation demonstrated that the classifiers could effectively predict varying levels of slow-wave sleep (SWS) from pre-sleep EEG segments, achieving a mean balanced accuracy surpassing 0.75. The SMOTE-Tomek resampling method could improve the performance to 0.77. This study suggests that stress-related neurological markers derived from pre-sleep EEG can effectively predict SWS deficiency. Such information can be integrated with existing sleep-improving techniques to provide a personalized sleep forecasting and improvement solution.


Asunto(s)
Algoritmos , Electroencefalografía , Entropía , Sueño de Onda Lenta , Humanos , Electroencefalografía/métodos , Masculino , Femenino , Sueño de Onda Lenta/fisiología , Adulto , Adulto Joven , Estrés Psicológico/fisiopatología , Ritmo alfa/fisiología , Predicción , Ritmo beta/fisiología , Ritmo Delta , Privación de Sueño/fisiopatología , Reproducibilidad de los Resultados
10.
Brain Res ; 1834: 148915, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38582414

RESUMEN

Bestrophin-1 and anoctamin-1 are members of the calcium-activated chloride channels (CaCCs) family and are involved in inflammatory and neuropathic pain. However, their role in pain hypersensitivity induced by REM sleep deprivation (REMSD) has not been studied. This study aimed to determine if anoctamin-1 and bestrophin-1 are involved in the pain hypersensitivity induced by REMSD. We used the multiple-platform method to induce REMSD. REM sleep deprivation for 48 h induced tactile allodynia and a transient increase in corticosterone concentration at the beginning of the protocol (12 h) in female and male rats. REMSD enhanced c-Fos and α2δ-1 protein expression but did not change activating transcription factor 3 (ATF3) and KCC2 expression in dorsal root ganglia and dorsal spinal cord. Intrathecal injection of CaCCinh-A01, a non-selective bestrophin-1 blocker, and T16Ainh-A01, a specific anoctamin-1 blocker, reverted REMSD-induced tactile allodynia. However, T16Ainh-A01 had a higher antiallodynic effect in male than female rats. In addition, REMSD increased bestrophin-1 protein expression in DRG but not in DSC in male and female rats. In marked contrast, REMSD decreased anoctamin-1 protein expression in DSC but not in DRG, only in female rats. Bestrophin-1 and anoctamin-1 promote pain and maintain tactile allodynia induced by REM sleep deprivation in both male and female rats, but their expression patterns differ between the sexes.


Asunto(s)
Bestrofinas , Ganglios Espinales , Hiperalgesia , Privación de Sueño , Médula Espinal , Animales , Privación de Sueño/metabolismo , Privación de Sueño/complicaciones , Hiperalgesia/metabolismo , Masculino , Femenino , Ratas , Ganglios Espinales/metabolismo , Médula Espinal/metabolismo , Bestrofinas/metabolismo , Canales de Cloruro/metabolismo , Sueño REM/fisiología , Ratas Wistar , Anoctamina-1 , Canales de Calcio Tipo L
11.
BMC Ophthalmol ; 24(1): 152, 2024 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-38581010

RESUMEN

OBJECTIVE: The purpose of this article is to systematically review the association between dry eye and sleep quality. METHODS: PubMed, EMBASE, Cochrane, Web of Science, and grey literature databases were searched for observational studies published before April 2023. Meta-analysis was performed using STAT15 software. RESULTS: A total of 21 studies with 419,218 participants were included. The results showed that the dry eye subjects had a worse sleep quality than the healthy population, with poorer subjective sleep quality, longer sleep latency, and a higher risk of unhealthy sleep duration such as insufficient sleep or excessive sleep. The Pittsburgh Sleep Quality Index (PSQI) scores of the dry eye subjects were significantly higher than those of the control subjects (WMD = 1.78, 95%CI: 1.06, 2.50, P < 0.001). The dry eye subjects scored higher than the control subjects in sleep quality, sleep latency, and sleep disturbance in PSQI; there was no difference between the dry eye individuals and control subjects in sleep duration, sleep efficiency, daytime dysfunction, and sleep medication scores. The risk of sleep disorders in the dry eye subjects was significantly higher than that in the non-dry eye subjects (RR = 2.20, 95%CI: 1.78, 2.72, P < 0.001); the risk of insufficient sleep in the dry eye subjects was higher than that in the control subjects (RR = 3.76, 95%CI: 3.15, 4.48, P < 0.001), and the prevalence of excessive sleepiness in dry eye subjects was higher than that in the control subjects (RR = 5.53, 95%CI: 3.83, 7.18, P < 0.001). The ESS scores of the dry eye subjects were significantly higher than those of the control subjects (WMD = 3.02, 95%CI: 2.43, 3.60, P < 0.01). CONCLUSION: Our meta-analysis suggests that individuals with dry eye have a worse sleep quality than the healthy population, with poorer subjective sleep quality, longer sleep latency, and higher risk of unhealthy sleep duration such as insufficient sleep or excessive sleepiness.


Asunto(s)
Síndromes de Ojo Seco , Trastornos del Sueño-Vigilia , Humanos , Calidad del Sueño , Privación de Sueño , Somnolencia , Síndromes de Ojo Seco/epidemiología , Trastornos del Sueño-Vigilia/complicaciones , Trastornos del Sueño-Vigilia/epidemiología , Sueño
12.
Behav Pharmacol ; 35(4): 239-252, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38567447

RESUMEN

Rapid-eye movement (REM) sleep deprivation (SD) can induce manic-like behaviors including hyperlocomotion. On the other hand, crocin (one of the main compounds of Crocus sativus L. or Saffron) may be beneficial in the improvement of mental and cognitive dysfunctions. Also, crocin can restore the deleterious effects of SD on mental and cognitive processes. In this study, we investigated the effect of REM SD on female rats' behaviors including depression- and anxiety-like behaviors, locomotion, pain perception, and obsessive-compulsive-like behavior, and also, the potential effect of crocin on REM SD effects. We used female rats because evidence on the role of REM SD in modulating psychological and behavioral functions of female (but not male) rats is limited. REM SD was induced for 14 days (6h/day), and crocin (25, 50, and 75 mg/kg) was injected intraperitoneally. Open field test, forced swim test, hot plate test, and marble burying test were used to assess rats' behaviors. The results showed REM SD-induced manic-like behavior (hyperlocomotion). Also, REM SD rats showed decreased anxiety- and depression-like behavior, pain subthreshold (the duration it takes for the rat to feel pain), and showed obsessive compulsive-like behavior. However, crocin at all doses partially or fully reversed REM SD-induced behavioral changes. In conclusion, our results suggested the possible comorbidity of OCD and REM SD-induced manic-like behavior in female rats or the potential role of REM SD in the etiology of OCD, although more studies are needed. In contrast, crocin can be a possible therapeutic choice for decreasing manic-like behaviors.


Asunto(s)
Carotenoides , Crocus , Privación de Sueño , Animales , Femenino , Ratas , Privación de Sueño/tratamiento farmacológico , Privación de Sueño/complicaciones , Carotenoides/farmacología , Trastorno Obsesivo Compulsivo/tratamiento farmacológico , Ansiedad/tratamiento farmacológico , Conducta Animal/efectos de los fármacos , Manía/tratamiento farmacológico , Depresión/tratamiento farmacológico , Ratas Wistar , Modelos Animales de Enfermedad , Trastorno Bipolar/tratamiento farmacológico , Sueño REM/efectos de los fármacos , Relación Dosis-Respuesta a Droga
13.
Behav Brain Res ; 467: 115008, 2024 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-38657839

RESUMEN

The present study aimed to investigate the effects of paradoxical sleep deprivation (PSD) on behavioral and oxidative stress parameters in the brain and serum of mice submitted to the animal model of hyperglycemia induced by alloxan, mimicking the main symptom of diabetes mellitus (DM). Adults C57BL/6 male and female mice received an injection of alloxan, and ten days later, the animals were submitted to the PSD for 36 h. The animals' behavioral parameters were evaluated in the open-field test. Oxidative stress parameters [Diacetyldichlorofluorescein (DCF), Thiobarbituric acid reactive substances (TBARS), Superoxide dismutase (SOD), and Glutathione] were assessed in the frontal cortex, hippocampus, striatum, and serum. The PSD increased the male and female mice locomotion, but the alloxan's pre-administration prevented the PSD-induced hyperactivity. In addition, the male mice receiving alloxan and submitted to the PSD had elevated latency time in the first quadrant and the number of fecal boli, demonstrating increased anxiety-like behavior. The HPA-axis was hyperactivating in male and female mice pre-administered alloxan and/or PSD-submitted animals. The oxidative stress parameters were also increased in the serum of the animals administered alloxan and/or sleep-deprived mice. Despite alloxan or PSD leading to behavioral or biochemical alterations, the one did not potentiate the other in mice. However, more studies are necessary to identify the link between sleep and hyperglycemia.


Asunto(s)
Encéfalo , Modelos Animales de Enfermedad , Hiperglucemia , Ratones Endogámicos C57BL , Estrés Oxidativo , Privación de Sueño , Animales , Privación de Sueño/metabolismo , Privación de Sueño/fisiopatología , Privación de Sueño/sangre , Masculino , Estrés Oxidativo/fisiología , Femenino , Hiperglucemia/metabolismo , Encéfalo/metabolismo , Ratones , Diabetes Mellitus Experimental/metabolismo , Diabetes Mellitus Experimental/fisiopatología , Aloxano , Sustancias Reactivas al Ácido Tiobarbitúrico/metabolismo , Superóxido Dismutasa/metabolismo , Glutatión/metabolismo , Glutatión/sangre
15.
Artículo en Ruso | MEDLINE | ID: mdl-38676671

RESUMEN

Modern research raises the question of the potentially significant role of glymphatic dysfunction in the development of neurodegeneration and pathological aging. The exact molecular mechanisms are not yet fully understood, but there is ample evidence of a link between sleep deprivation and decreased clearance of ß-amyloid and other neurotoxin proteins that are associated with the development of neurodegenerative diseases, particularly Alzheimer's disease. The review analyzes current scientific information in this area of research, describes the latest scientific discoveries of the features of the glymphatic system, and also illustrates studies of markers that presumably indicate a deterioration in the glymphatic system. The relationship between sleep deprivation and pathophysiological mechanisms associated with neurodegenerative diseases is considered, and potential targets that can be used to treat or delay the development of these disorders are noted.


Asunto(s)
Enfermedad de Alzheimer , Péptidos beta-Amiloides , Sistema Glinfático , Trastornos del Sueño-Vigilia , Humanos , Enfermedad de Alzheimer/fisiopatología , Enfermedad de Alzheimer/metabolismo , Sistema Glinfático/fisiopatología , Sistema Glinfático/metabolismo , Trastornos del Sueño-Vigilia/fisiopatología , Trastornos del Sueño-Vigilia/metabolismo , Péptidos beta-Amiloides/metabolismo , Privación de Sueño/fisiopatología , Privación de Sueño/complicaciones , Privación de Sueño/metabolismo
16.
Brain Res Bull ; 211: 110945, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38608544

RESUMEN

Sleep fragmentation (SF) is a common sleep problem experienced during the perioperative period by older adults, and is associated with postoperative cognitive dysfunction (POCD). Increasing evidence indicates that delta-wave activity during non-rapid eye movement (NREM) sleep is involved in sleep-dependent memory consolidation and that hippocampal theta oscillations are related to spatial exploratory memory. Recovery sleep (RS), a self-regulated state of sleep homeostasis, enhances delta-wave power and memory performance in sleep-deprived older mice. However, it remains unclear whether RS therapy has a positive effect on cognitive changes following SF in older mouse models. Therefore, this study aimed to explore whether preoperative RS can alleviate cognitive deficits in aged mice with SF. A model of preoperative 24-h SF combined with exploratory laparotomy-induced POCD was established in 18-month-old mice. Aged mice were treated with preoperative 6-h RS following SF and postoperative 6-h RS following surgery, respectively. The changes in hippocampus-dependent cognitive function were investigated using behavioral tests, electroencephalography (EEG), local field potential (LFP), magnetic resonance imaging, and neuromorphology. Mice that underwent 24-h SF combined with surgery exhibited severe spatial memory impairment; impaired cognitive performance could be alleviated by preoperative RS treatment. In addition, preoperative RS increased NREM sleep; enhanced EEG delta-wave activity and LFP theta oscillation in the hippocampal CA1; and improved hippocampal perfusion, microstructural integrity, and neuronal damage. Taken together, these results provide evidence that preoperative RS may ameliorate the severity of POCD aggravated by SF by enhancing delta slow-wave activity and hippocampal theta oscillation, and by ameliorating the reduction in regional cerebral blood flow and white matter microstructure integrity in the hippocampus.


Asunto(s)
Región CA1 Hipocampal , Ritmo Delta , Complicaciones Cognitivas Postoperatorias , Privación de Sueño , Ritmo Teta , Animales , Privación de Sueño/fisiopatología , Privación de Sueño/complicaciones , Ratones , Ritmo Teta/fisiología , Masculino , Ritmo Delta/fisiología , Región CA1 Hipocampal/fisiopatología , Ratones Endogámicos C57BL , Electroencefalografía/métodos , Disfunción Cognitiva/etiología , Disfunción Cognitiva/fisiopatología , Sueño/fisiología , Envejecimiento/fisiología
17.
Genes Brain Behav ; 23(2): e12896, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38662955

RESUMEN

Gastroesophageal reflux disease (GERD) is associated with sleep disturbances. However, mechanisms underlying these interactions remain unclear. Male acute and chronic sleep deprivation (SD) mice were used for this study. Mice in the chronic SD group exhibited anxiety- and depression-like behaviors. We further performed high-throughput genome sequencing and bioinformatics analysis to screen for featured differentially expressed genes (DEGs) in the esophageal tissue. The acute SD group, comprised 25 DEGs including 14 downregulated and 11 upregulated genes. Compared with the acute SD group, more DEGs were present in the chronic SD group, with a total of 169 DEGs, including 88 downregulated and 81 upregulated genes. Some DEGs that were closely related to GERD and associated esophageal diseases were significantly different in the chronic SD group. Quantitative real-time polymerase chain reaction verified the downregulation of Krt4, Krt13, Krt15 and Calml3 and upregulation of Baxl1 and Per3. Notably, these DEGs are involved in biological processes, which might be the pathways of the neuroregulatory mechanisms of DEGs expression.


Asunto(s)
Esófago , Privación de Sueño , Animales , Masculino , Privación de Sueño/genética , Privación de Sueño/metabolismo , Ratones , Esófago/metabolismo , Reflujo Gastroesofágico/genética , Reflujo Gastroesofágico/metabolismo , Ratones Endogámicos C57BL , Transcriptoma , Depresión/genética , Depresión/metabolismo
18.
J Affect Disord ; 355: 478-486, 2024 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-38574868

RESUMEN

BACKGROUND: Sleep disturbances are not only frequent symptoms, but also risk factors for major depressive disorder. We previously reported that depressed patients who experienced "Hypersomnia" showed a higher and more rapid response rate under paroxetine treatment, but the underlying mechanism remains unclear. The present study was conducted to clarify the beneficial effects of sleep rebound through an experimental "Hypersomnia" rat model on glucocorticoid and hippocampal neuroplasticity associated with antidepressive potency. METHODS: Thirty-four male Sprague-Dawley rats were subjected to sham treatment, 72-h sleep deprivation, or sleep deprivation and subsequent follow-up for one week. Approximately half of the animals were sacrificed to evaluate adrenal weight, plasma corticosterone level, hippocampal content of mRNA isoforms, and protein of the brain-derived neurotrophic factor (Bdnf) gene. In the other half of the rats, Ki-67- and doublecortin (DCX)-positive cells in the hippocampus were counted via immunostaining to quantify adult neurogenesis. RESULTS: Prolonged sleep deprivation led to adrenal hypertrophy and an increase in the plasma corticosterone level, which had returned to normal after one week follow-up. Of note, sleep deprivation-induced decreases in hippocampal Bdnf transcripts containing exons II, IV, VI, and IX and BDNF protein levels, Ki-67-(+)-proliferating cells, and DCX-(+)-newly-born neurons were not merely reversed, but overshot their normal levels with sleep rebound. LIMITATIONS: The present study did not record electroencephalogram or assess behavioral changes of the sleep-deprived rats. CONCLUSIONS: The present study demonstrated that prolonged sleep deprivation-induced adversities are reversed or recovered by sleep rebound, which supports "Hypersomnia" in depressed patients as having a beneficial pharmacological effect.


Asunto(s)
Trastorno Depresivo Mayor , Privación de Sueño , Humanos , Ratas , Masculino , Animales , Privación de Sueño/metabolismo , Ratas Sprague-Dawley , Factor Neurotrófico Derivado del Encéfalo/genética , Factor Neurotrófico Derivado del Encéfalo/metabolismo , Trastorno Depresivo Mayor/metabolismo , Corticosterona , Antígeno Ki-67/metabolismo , Hipocampo/metabolismo
19.
Nutrients ; 16(8)2024 Apr 09.
Artículo en Inglés | MEDLINE | ID: mdl-38674791

RESUMEN

Sleep deprivation (SD) leads to impaired intestinal barrier function and intestinal flora disorder, especially a reduction in the abundance of the next generation of probiotic Faecalibacterium prausnitzii (F. prausnitzii). However, it remains largely unclear whether F. prausnitzii can ameliorate SD-induced intestinal barrier damage. A 72 h SD mouse model was used in this research, with or without the addition of F. prausnitzii. The findings indicated that pre-colonization with F. prausnitzii could protect against tissue damage from SD, enhance goblet cell count and MUC2 levels in the colon, boost tight-junction protein expression, decrease macrophage infiltration, suppress pro-inflammatory cytokine expression, and reduce apoptosis. We found that the presence of F. prausnitzii helped to balance the gut microbiota in SD mice by reducing harmful bacteria like Klebsiella and Staphylococcus, while increasing beneficial bacteria such as Akkermansia. Ion chromatography analysis revealed that F. prausnitzii pretreatment increased the fecal butyrate level in SD mice. Overall, these results suggested that incorporating F. prausnitzii could help reduce gut damage caused by SD, potentially by enhancing the intestinal barrier and balancing gut microflora. This provides a foundation for utilizing probiotics to protect against intestinal illnesses.


Asunto(s)
Disbiosis , Faecalibacterium prausnitzii , Microbioma Gastrointestinal , Mucosa Intestinal , Probióticos , Privación de Sueño , Animales , Privación de Sueño/complicaciones , Ratones , Probióticos/farmacología , Probióticos/administración & dosificación , Mucosa Intestinal/metabolismo , Mucosa Intestinal/microbiología , Masculino , Heces/microbiología , Ratones Endogámicos C57BL , Suplementos Dietéticos , Modelos Animales de Enfermedad , Mucina 2/metabolismo , Butiratos/metabolismo , Colon/microbiología , Colon/metabolismo
20.
Sci Data ; 11(1): 427, 2024 Apr 24.
Artículo en Inglés | MEDLINE | ID: mdl-38658675

RESUMEN

To investigate the impact of sleep deprivation (SD) on mood, alertness, and resting-state electroencephalogram (EEG), we present an eyes-open resting-state EEG dataset. The dataset comprises EEG recordings and cognitive data from 71 participants undergoing two testing sessions: one involving SD and the other normal sleep. In each session, participants engaged in eyes-open resting-state EEG. The Psychomotor Vigilance Task (PVT) was employed for alertness measurement. Emotional and sleepiness were measured using Positive and Negative Affect Scale (PANAS) and Stanford Sleepiness Scale (SSS). Additionally, to examine the influence of individual sleep quality and traits on SD, Pittsburgh Sleep Quality Index (PSQI) and Buss-Perry Aggression Questionnaire (BPAQ) were utilized. This dataset's sharing may contribute to open EEG measurements in the field of SD.


Asunto(s)
Electroencefalografía , Privación de Sueño , Adulto , Humanos , Masculino , Afecto , Privación de Sueño/fisiopatología , Encuestas y Cuestionarios , Femenino , Adolescente , Adulto Joven
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