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BMC Public Health Jun 2024Previous studies have demonstrated a strong association between depression and job burnout among healthcare professionals, but the results have been inconsistent, and...
BACKGROUND
Previous studies have demonstrated a strong association between depression and job burnout among healthcare professionals, but the results have been inconsistent, and there is a lack of in-depth exploration of such a relationship among different healthcare professions. The present study aims to investigate the interrelationships between depression and burnout among Chinese healthcare professionals and whether there are differences in the networks of these symptoms between doctors and nurses.
METHODS
The Maslach Burnout Inventory-General Survey and the 2-item Patient Health Questionnaire were employed to assess job burnout and depression among 3,684 healthcare professionals. The translation has been refined to ensure accuracy and academic suitability. Subsequently, network analysis was conducted on 2,244 participants with a higher level of job burnout to identify core symptoms and explore the associations between job burnout and depression.
RESULTS
The present study showed a network association between lack of interest and pleasure in things and being exhausted from work, excessive tiredness facing work, tendency to collapse at work, and lack of passion for work than before among healthcare professionals, as well as a notable difference in the network association between lack of interest and pleasure in things and lack of passion for work than before between nurses and doctors.
CONCLUSIONS
The depression-burnout network structures differ between doctors and nurses, highlighting the need for targeted intervention measures for both groups.
Topics: Humans; Burnout, Professional; Female; Male; Adult; Depression; Physicians; China; Middle Aged; Nurses; Surveys and Questionnaires
PubMed: 38909182
DOI: 10.1186/s12889-024-19193-3 -
BMC Pregnancy and Childbirth Jun 2024Differential exposure to chronic stressors by race/ethnicity may help explain Black-White inequalities in rates of preterm birth. However, researchers have not...
BACKGROUND
Differential exposure to chronic stressors by race/ethnicity may help explain Black-White inequalities in rates of preterm birth. However, researchers have not investigated the cumulative, interactive, and population-specific nature of chronic stressor exposures and their possible nonlinear associations with preterm birth. Models capable of computing such high-dimensional associations that could differ by race/ethnicity are needed. We developed machine learning models of chronic stressors to both predict preterm birth more accurately and identify chronic stressors and other risk factors driving preterm birth risk among non-Hispanic Black and non-Hispanic White pregnant women.
METHODS
Multivariate Adaptive Regression Splines (MARS) models were developed for preterm birth prediction for non-Hispanic Black, non-Hispanic White, and combined study samples derived from the CDC's Pregnancy Risk Assessment Monitoring System data (2012-2017). For each sample population, MARS models were trained and tested using 5-fold cross-validation. For each population, the Area Under the ROC Curve (AUC) was used to evaluate model performance, and variable importance for preterm birth prediction was computed.
RESULTS
Among 81,892 non-Hispanic Black and 277,963 non-Hispanic White live births (weighted sample), the best-performing MARS models showed high accuracy (AUC: 0.754-0.765) and similar-or-better performance for race/ethnicity-specific models compared to the combined model. The number of prenatal care visits, premature rupture of membrane, and medical conditions were more important than other variables in predicting preterm birth across the populations. Chronic stressors (e.g., low maternal education and intimate partner violence) and their correlates predicted preterm birth only for non-Hispanic Black women.
CONCLUSIONS
Our study findings reinforce that such mid or upstream determinants of health as chronic stressors should be targeted to reduce excess preterm birth risk among non-Hispanic Black women and ultimately narrow the persistent Black-White gap in preterm birth in the U.S.
Topics: Humans; Female; Premature Birth; Pregnancy; Machine Learning; White People; Black or African American; Stress, Psychological; Adult; Risk Factors; United States; Young Adult; Risk Assessment
PubMed: 38909177
DOI: 10.1186/s12884-024-06613-w -
Communications Biology Jun 2024Rapid eye movement sleep (REMS) is increasingly suggested as a discriminant sleep state for subtle signs of age-related neurodegeneration. While REMS expression is under...
Rapid eye movement sleep (REMS) is increasingly suggested as a discriminant sleep state for subtle signs of age-related neurodegeneration. While REMS expression is under strong circadian control and circadian dysregulation increases with age, the association between brain aging and circadian REMS regulation has not yet been assessed. Here, we measure the circadian amplitude of REMS through a 40-h in-lab multiple nap protocol in controlled laboratory conditions, and brain microstructural integrity with quantitative multi-parameter mapping (MPM) imaging in 86 older individuals. We show that reduced circadian REMS amplitude is related to lower magnetization transfer saturation (MTsat), longitudinal relaxation rate (R1) and effective transverse relaxation rate (R2*) values in several white matter regions mostly located around the lateral ventricles, and with lower R1 values in grey matter clusters encompassing the hippocampus, parahippocampus, thalamus and hypothalamus. Our results further highlight the importance of considering circadian regulation for understanding the association between sleep and brain structure in older individuals.
Topics: Humans; Aged; Male; Female; Sleep, REM; Circadian Rhythm; Brain; Magnetic Resonance Imaging; Middle Aged; Aging; Aged, 80 and over
PubMed: 38909162
DOI: 10.1038/s42003-024-06415-y -
Scientific Reports Jun 2024Individuals experience difficulty falling asleep in a new environment, termed the first night effect (FNE). However, the impact of the FNE on sleep-induced brain...
Individuals experience difficulty falling asleep in a new environment, termed the first night effect (FNE). However, the impact of the FNE on sleep-induced brain plasticity remains unclear. Here, using a within-subject design, we found that the FNE significantly reduces visual plasticity during sleep in young adults. Sleep-onset latency (SOL), an indicator of the FNE, was significantly longer during the first sleep session than the second session, confirming the FNE. We assessed performance gains in visual perceptual learning after sleep and increases in the excitatory-to-inhibitory neurotransmitter (E/I) ratio in early visual areas during sleep using magnetic resonance spectroscopy and polysomnography. These parameters were significantly smaller in sleep with the FNE than in sleep without the FNE; however, these parameters were not correlated with SOL. These results suggest that while the neural mechanisms of the FNE and brain plasticity are independent, sleep disturbances temporarily block the neurochemical process fundamental for brain plasticity.
Topics: Humans; Neuronal Plasticity; Male; Sleep; Female; Young Adult; Adult; Polysomnography; Visual Perception; Magnetic Resonance Spectroscopy; Learning; Brain
PubMed: 38909129
DOI: 10.1038/s41598-024-64091-8 -
Nature Communications Jun 2024Psychedelics have experienced renewed interest following positive clinical effects, however the neurobiological mechanisms underlying effects remain unclear. The...
Psychedelics have experienced renewed interest following positive clinical effects, however the neurobiological mechanisms underlying effects remain unclear. The paraventricular nucleus of the hypothalamus (PVN) plays an integral role in stress response, autonomic function, social behavior, and other affective processes. We investigated the effect of psilocin, the psychoactive metabolite of psilocybin, on PVN reactivity in Sprague Dawley rats. Psilocin increased stimulus-independent PVN activity as measured by c-Fos expression in male and female rats. Psilocin increased PVN reactivity to an aversive air-puff stimulus in males but not females. Reactivity was restored at 2- and 7-days post-injection with no group differences. Additionally, prior psilocin injection did not affect PVN reactivity following acute restraint stress. Experimental groups sub-classified by baseline threat responding indicate that increased male PVN reactivity is driven by active threat responders. These findings identify the PVN as a significant site of psychedelic drug action with implications for threat responding behavior.
Topics: Animals; Paraventricular Hypothalamic Nucleus; Male; Psilocybin; Rats, Sprague-Dawley; Female; Rats; Hallucinogens; Proto-Oncogene Proteins c-fos; Behavior, Animal; Stress, Psychological
PubMed: 38909051
DOI: 10.1038/s41467-024-49741-9 -
Scandinavian Journal of Pain Jan 2024Pain is still a neglected problem in mild traumatic brain injury (mTBI). In this cross-sectional study, we examined the frequency of musculoskeletal pain in a sample of...
OBJECTIVES
Pain is still a neglected problem in mild traumatic brain injury (mTBI). In this cross-sectional study, we examined the frequency of musculoskeletal pain in a sample of adult patients with persistent cognitive symptoms after mTBI and whether pain level affected cognition.
METHODS
The participants were 23 adult patients aged 18-50 referred to brain injury rehabilitation clinics for neuropsychological assessment after having sustained an mTBI. A non-injured control group ( = 29) was recruited through advertisements. The patients were, on average, assessed 22 months after trauma. All participants completed a comprehensive neuropsychological test battery and completed the Örebro Musculoskeletal Pain Screening Questionnaire, The Rivermead Post-Concussion Symptoms Questionnaire, and the State-Trait Anxiety Inventory.
RESULTS
Patients reported high levels of current pain and significantly more frequent neck and shoulder pain than the non-injured controls. Patients also reported high post-concussive symptoms and anxiety levels and performed less well on several neuropsychological tests. Pain level was associated with slower processing speed among the controls but not related to performance in the mTBI group.
CONCLUSION
We conclude that musculoskeletal pain is frequent in mTBI patients referred to rehabilitation settings. Furthermore, the results indicate that the interaction between pain and cognitive functioning differs in mTBI compared to controls. Our results implicate that pain screening should be an integrated part of neuropsychological rehabilitation after mTBI to identify conditions that run the risk of becoming chronic. The study was approved by the Regional Ethical Board in Stockholm, Sweden (04-415/2).
Topics: Humans; Male; Female; Adult; Cross-Sectional Studies; Brain Concussion; Middle Aged; Neuropsychological Tests; Young Adult; Musculoskeletal Pain; Cognition; Anxiety; Adolescent; Post-Concussion Syndrome
PubMed: 38907605
DOI: 10.1515/sjpain-2023-0124 -
BMC Ophthalmology Jun 2024Sleep deprivation (SD) is a common public health problem that contributes to various physiological disorders and increases the risk of ocular diseases. However, whether...
BACKGROUND
Sleep deprivation (SD) is a common public health problem that contributes to various physiological disorders and increases the risk of ocular diseases. However, whether sleep loss can damage corneal endothelial function remains unclear. This study aimed to determine the effect and possible mechanism of SD on the corneal endothelium.
METHODS
Male C57BL/6J mice were subjected to establish SD models. After 10 days, quantitative RT-PCR (qRT-PCR) and western blot or immunostaining for the expression levels of zonula occludens-1 (ZO-1), ATPase Na+/K + transporting subunit alpha 1 (Atp1a1), and core clock genes in the corneal endothelium were evaluated. Reactive oxygen species staining and mitochondrial abundance characterized the mitochondrial function. The regulatory role of Bmal1 was confirmed by specifically knocking down or overexpressing basic helix-loop-helix ARNT like 1 protein (Bmal1) in vivo. In vitro, a mitochondrial stress test was conducted on cultured human corneal endothelial cells upon Bmal1 knockdown.
RESULTS
SD damaged the barrier and pump functions of mouse corneal endothelium, accompanied by mitochondrial dysfunction. Interestingly, SD dramatically downregulated the core clock gene Bmal1 expression level. Bmal1 knockdown disrupted corneal endothelial function, while overexpression of Bmal1 ameliorated the dysfunction induced by SD. Mitochondrial bioenergetic deficiency mediated by Bmal1 was an underlying mechanism for SD induced corneal endothelial dysfunction.
CONCLUSION
The downregulation of Bmal1 expression caused by SD led to corneal endothelial dysfunction via impairing mitochondrial bioenergetics. Our findings offered insight into how SD impairs the physiological function of the corneal endothelium and expanded the understanding of sleep loss leading to ocular diseases.
Topics: Sleep Deprivation; Animals; Mice, Inbred C57BL; Male; Mice; ARNTL Transcription Factors; Down-Regulation; Endothelium, Corneal; Disease Models, Animal; Cells, Cultured; Mitochondria; Blotting, Western; Gene Expression Regulation
PubMed: 38907352
DOI: 10.1186/s12886-024-03524-4 -
Trials Jun 2024Due to the burden of musculoskeletal diseases in the elderly and the multifactorial nature of such conditions, controlling the pain caused by these disorders requires...
The effectiveness of multidisciplinary interventions based on health belief model on musculoskeletal pain in the elderly living in nursing homes: a study protocol for a randomized controlled trial.
BACKGROUND
Due to the burden of musculoskeletal diseases in the elderly and the multifactorial nature of such conditions, controlling the pain caused by these disorders requires multidisciplinary approach. This approach requires the participation of the elderly in applying effective prevention measures. This study aims to design a multidisciplinary educational intervention based on health belief model (HBM) for elderly residents of nursing homes.
METHODS
This is a parallel randomized clinical trial among elderly people aged 60 years and over living in a nursing home who suffer from musculoskeletal pain. Eligible participants will be divided into two groups including the intervention group who will receive a multidisciplinary intervention (vitamin D consumption, psycho-social stress management, and physiotherapy) and the control group who will receive usual care. Data collection instruments will include demographic data, the Depression, Anxiety, and Stress Scale (DASS), the visual analogue scale (VAS), and a self-designed questionnaire containing the HBM constructs. The interventions will be carried out by the educational team (general practitioner, psychologist, physiotherapist, and health education specialist). Interventions include changing the wrong beliefs of the elderly, taking 800 units of vitamin D daily, daily walking exercise by the elderly for at least 30 min and maintaining proper body posture during daily activities, muscle relaxation, relaxation techniques, regular exercise, examining their diet and eliminating stimulants (such as smoking and coffee), regular visits with friends and family, and deep breathing techniques. All questionnaires will be completed by the elderly before, after, 3, and 6 months after the intervention.
DISCUSSION
The present study will evaluate the effect of an educational intervention based on a multifaceted pain control approach for elderly people who reside in nursing homes in order to reduce musculoskeletal pain in the elderly living in nursing homes. One of the features of this study is its focus on improving the health of elderly residents in nursing homes. Given the increase in the elderly population worldwide, the findings from the current trial might benefit elderly populations.
TRIAL REGISTRATION
IRCT20220904055881N1 . Registered on 11 February 2023.
Topics: Humans; Nursing Homes; Musculoskeletal Pain; Aged; Homes for the Aged; Randomized Controlled Trials as Topic; Vitamin D; Female; Male; Health Knowledge, Attitudes, Practice; Middle Aged; Physical Therapy Modalities; Treatment Outcome; Stress, Psychological; Aged, 80 and over; Patient Education as Topic
PubMed: 38907349
DOI: 10.1186/s13063-024-08243-1 -
BMC Psychology Jun 2024Emotional intelligence and life satisfaction are essential components for good psychological well-being. Studies examining the elements contributing to emotional...
BACKGROUND
Emotional intelligence and life satisfaction are essential components for good psychological well-being. Studies examining the elements contributing to emotional intelligence and its relationships with different psychological constructs are likely to positively contribute to mental health. Therefore, the present study examined the mediating roles of perceived stress and psychological resilience in the relationship between emotional intelligence and life satisfaction.
METHODS
The study sample comprised 780 university students (62.3% females) studying at universities in different regions of Türkiye. An online survey included the Emotional Intelligence Scale, Satisfaction with Life Scale, Psychological Resilience Scale, and Perceived Stress Scale. A multifactorial complex predictive correlational design was used.
RESULTS
The results showed that emotional intelligence was (i) positively correlated with life satisfaction and psychological resilience, and (ii) negatively correlated with perceived stress. In the final model, perceived stress and psychological resilience played a mediating role in the relationship between emotional intelligence and life satisfaction. The findings suggest that higher emotional intelligence may lower perceived stress and appears to have a positive effect in relation to life satisfaction and psychological resilience.
CONCLUSION
Individuals working in the field of mental health need to help individuals increase their level of EI, which may help reduce the level of perceived stress and increase psychological resilience and life satisfaction.
Topics: Humans; Resilience, Psychological; Female; Personal Satisfaction; Male; Emotional Intelligence; Cross-Sectional Studies; Adult; Turkey; Stress, Psychological; Young Adult; Students; Universities; Adolescent; Surveys and Questionnaires
PubMed: 38907343
DOI: 10.1186/s40359-024-01860-0 -
Journal of Neuroengineering and... Jun 2024The ankle is usually highly effective in modulating the swing foot's trajectory to ensure safe ground clearance but there are few reports of ankle kinetics and...
BACKGROUND
The ankle is usually highly effective in modulating the swing foot's trajectory to ensure safe ground clearance but there are few reports of ankle kinetics and mechanical energy exchange during the gait cycle swing phase. Previous work has investigated ankle swing mechanics during normal walking but with developments in devices providing dorsiflexion assistance, it is now essential to understand the minimal kinetic requirements for increasing ankle dorsiflexion, particularly for devices employing energy harvesting or utilizing lighter and lower power energy sources or actuators.
METHODS
Using a real-time treadmill-walking biofeedback technique, swing phase ankle dorsiflexion was experimentally controlled to increase foot-ground clearance by 4 cm achieved via increased ankle dorsiflexion. Swing phase ankle moments and dorsiflexor muscle forces were estimated using AnyBody modeling system. It was hypothesized that increasing foot-ground clearance by 4 cm, employing only the ankle joint, would require significantly higher dorsiflexion moments and muscle forces than a normal walking control condition.
RESULTS
Results did not confirm significantly increased ankle moments with augmented dorsiflexion, with 0.02 N.m/kg at toe-off reducing to zero by the end of swing. Tibialis Anterior muscle force incremented significantly from 2 to 4 N/kg after toe-off, due to coactivation with the Soleus. To ensure an additional 4 cm mid swing foot-ground clearance, an estimated additional 0.003 Joules/kg is required to be released immediately after toe-off.
CONCLUSION
This study highlights the interplay between ankle moments, muscle forces, and energy demands during swing phase ankle dorsiflexion, offering insights for the design of ankle assistive technologies. External devices do not need to deliver significantly greater ankle moments to increase ankle dorsiflexion but, they should offer higher mechanical power to provide rapid bursts of energy to facilitate quick dorsiflexion transitions before reaching Minimum Foot Clearance event. Additionally, for ankle-related bio-inspired devices incorporating artificial muscles or humanoid robots that aim to replicate natural ankle biomechanics, the inclusion of supplementary Tibialis Anterior forces is crucial due to Tibialis Anterior and Soleus co-activation. These design strategies ensures that ankle assistive technologies are both effective and aligned with the biomechanical realities of human movement.
Topics: Humans; Biomechanical Phenomena; Male; Adult; Female; Self-Help Devices; Ankle Joint; Ankle; Muscle, Skeletal; Walking; Gait; Young Adult; Foot; Equipment Design; Biofeedback, Psychology; Kinetics
PubMed: 38907255
DOI: 10.1186/s12984-024-01394-x