Depression and Sleep

Steiger, Axel; Pawlowski, Marcel

doi:10.3390/ijms20030607

Cited by 193 publications

(136 citation statements)

References 101 publications

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“…Fatigue and psychiatric conditions including depression, anxiety, and post-traumatic stress disorder (PTSD) were reported to be associated with sleep disturbances (Germain et al 2017;Gould et al 2018;Steiger and Pawlowski 2019;Wendt et al 2019). We assessed fatigue, fatigue, anxiety, and PTSD to control the effect of those comorbidities on sleep disturbance.…”

Section: Variables For Analysismentioning

confidence: 99%

The relationship between the pattern of shift work and sleep disturbances in Korean firefighters

Jang

Jeong

Ahn

et al. 2019

Int Arch Occup Environ Health

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Purpose Sleep disturbances are prevalent in firefighters, but the relationship between patterns of shift work and sleep disturbances has not yet been investigated. Here, this relationship has been evaluated in Korean firefighters. Methods A cross-sectional study was conducted using an online questionnaire, which captured demographic, psychosocial and work-related characteristics. Sleep disturbance was assessed using the insomnia severity index (ISI). The relationship between insomnia and work-related factors (including type of shift work and the frequency of emergency events and off-duty work which means overtime work on off days) was analyzed. Results A total of 9810 firefighters completed the survey, representing approximately 21.5% of all Korean firefighters; data from 9738 subjects were included in the analysis. All firefighter roles were significantly associated with insomnia; the odds ratio (OR) was 2.456 (95% confidence interval [CI] 1.461-4.128) for fire suppression and 1.871 (95% CI 1.105-3.167) for the emergency medical services and rescue. However, the pattern of shift work did not show a statistically significant relationship. The OR increased along with the frequency of emergency events and off-duty work (p value for trend < 0.05). Conclusions This study found a significant association between the frequency of emergency and off-duty work and insomnia in Korean firefighters, whereas the pattern of shift work showed no significant relationship. Therefore, measures to reduce the frequency of emergency and off-duty work are required to prevent sleep disturbances in firefighters.

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Section: Variables For Analysismentioning

confidence: 99%

The relationship between the pattern of shift work and sleep disturbances in Korean firefighters

Jang

Jeong

Ahn

et al. 2019

Int Arch Occup Environ Health

View full text Add to dashboard Cite

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“…While several reviews examining the impact of diet on sleep are available, their conclusions have largely been drawn based on studies of clinical populations [21][22][23]. Severe sleep-related disorders (e.g., insomnia) are associated with comorbidities such as depression [24] and stress [25], and thus may confound the relationship between diet and sleep. However, even participants without clinically diagnosed sleep disorders may experience poor sleep due to factors such as work and family commitments, and the late-night use of technology (i.e., smartphones, tablets, and television) [26].…”

Section: Introductionmentioning

confidence: 99%

Effects of Diet on Sleep: A Narrative Review

et al. 2020

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Many processes are involved in sleep regulation, including the ingestion of nutrients, suggesting a link between diet and sleep. Aside from studies investigating the effects of tryptophan, previous research on sleep and diet has primarily focused on the effects of sleep deprivation or sleep restriction on diet. Furthermore, previous reviews have included subjects with clinically diagnosed sleep-related disorders. The current narrative review aimed to clarify findings on sleep-promoting foods and outline the effects of diet on sleep in otherwise healthy adults. A search was undertaken in August 2019 from the Cochrane, MEDLINE (PubMed), and CINAHL databases using the population, intervention, control, outcome (PICO) method. Eligible studies were classified based on emerging themes and reviewed using narrative synthesis. Four themes emerged: tryptophan consumption and tryptophan depletion, dietary supplements, food items, and macronutrients. High carbohydrate diets, and foods containing tryptophan, melatonin, and phytonutrients (e.g., cherries), were linked to improved sleep outcomes. The authors posit that these effects may be due in part to dietary influences on serotonin and melatonin activity.

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“…Indeed, compared to men, women present a specific polysomnographic pattern characterized by modifications of slow-wave sleep and disinhibition of rapid eye movement (REM) sleep [24,25]. Moreover, these particular polysomnographic characteristics have been identified as markers of vulnerability in individuals at high risk of mood disorders [26], which may be explained by the implication of these sleep stages in the pathophysiology of mood disorders [27][28][29][30]. However, women seem to have a higher vulnerability to mood disorders [31] that could be partially induced by this sex dimorphism in these sleep stages [32].…”

Section: Introductionmentioning

confidence: 99%

Alterations of neural network organization during REM sleep in women: implication for sex differences in vulnerability to mood disorders

et al. 2020

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Background: Sleep plays an important role in vulnerability to mood disorders. However, despite the existence of sex differences in vulnerability to mood disorders, no study has yet investigated the sex effect on sleep network organization and its potential involvement in vulnerability to mood disorders. The aim of our study was to empirically investigate the sex effect on network organization during REM and slow-wave sleep using the effective connectivity measured by Granger causality. Methods: Polysomnographic data from 44 healthy individuals (28 men and 16 women) recruited prospectively were analysed. To obtain the 19 × 19 connectivity matrix of all possible pairwise combinations of electrodes by Granger causality method from our EEG data, we used the Toolbox MVGC multivariate Granger causality. The computation of the network measures was realized by importing these connectivity matrices into EEGNET Toolbox. Results: In men and women, all small-world coefficients obtained are compatible with a small-world network organization during REM and slow-wave sleep. However, compared to men, women present greater small-world coefficients during REM sleep as well as for all EEG bands during this sleep stage, which indicates the presence of a small-world network organization less marked during REM sleep as well as for all EEG bands during this sleep stage in women. In addition, in women, these small-world coefficients during REM sleep as well as for all EEG bands during this sleep stage are positively correlated with the presence of subclinical symptoms of depression. Conclusions: Thus, the highlighting of these sex differences in network organization during REM sleep indicates the presence of differences in the global and local processing of information during sleep between women and men. In addition, this small-world network organization less marked during REM sleep appears to be a marker of vulnerability to mood disorders specific to women, which opens up new perspectives in understanding sex differences in the occurrence of mood disorders.

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Depression and Sleep

Cited by 193 publications

References 101 publications

The relationship between the pattern of shift work and sleep disturbances in Korean firefighters

The relationship between the pattern of shift work and sleep disturbances in Korean firefighters

Effects of Diet on Sleep: A Narrative Review

Alterations of neural network organization during REM sleep in women: implication for sex differences in vulnerability to mood disorders

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