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Bidirectional effects may exist between SRH and depressive symptoms among adults aged 50 and older. Special attention should be paid to the unique effects of SRH on depressive symptoms in the years following retirement and also to depressive symptoms on SRH among the old-old.

Bidirectional effects may exist between SRH and depressive symptoms among adults aged 50 and older. Special attention should be paid to the unique effects of SRH on depressive symptoms in the years following retirement and also to depressive symptoms on SRH among the old-old.A method for rapid screening and quantification of progesterone and progestins in milks by ultrahigh-performance liquid chromatography coupled with quadrupole-high field Orbitrap high-resolution mass spectrometry (UHPLC QE HF HRMS) was established. Milks samples were extracted by acetonitrile + hexane (80 + 20), purified by prime HLB SPE and analyzed by UHPLC QE HF HRMS. The detection limit of progesterone and 21 progestins in milk is between 0.05 µg/kg -0.3 μg /kg, the correlation coefficient of progesterone and progestins in the corresponding concentration range is more than 0.99, recoveries for milk samples are between 80.7% and 108.3% with the relative deviation is less than 15%.The method fulfils the requirements of veterinary drug residue detection validation of EU and China, and successfully applied to detecting the μg/kg level of progesterone and monitoring residual of progestins in real milk.A method for the determination of 8 biogenic amines in aquatic products and their derived products was established by HPLC-MS/MS without derivatization. The samples were extracted by 5% perchloric acid solution. N-hexane was used to clean the extract. The analytes were separated by a column of ACQUITY UPLC HSS T3 (100 mm × 2.1 mm, 1.8 µm), and gradient eluted with a mixed solution of (0.5% formic acid) and acetonitrile. Good linearity was obtained with correlation coefficients (R2) >0.99. This method achieved higher sensitivity (from 0.1 mg/kg for tyramine, 2-phenylethylamine and tryptamine to 1.0 mg/kg for spermidine, spermine, cadaverin, histamine and putrescine). The average recoveries were demonstrated in the range of 70.9%-113.1%, with relative standard deviations (RSDs) from 0.33% to 10.81%. This method was suitable for the detection of BAs in aquatic products and their products.

Brain maturation is reflected in the sleep electroencephalogram (EEG) by a decline in non-rapid eye movement (NREM) slow wave activity (SWA) throughout adolescence and a related decrease in sleep depth. However, this trajectory and its sex and pubertal differences lack replication in population-based samples. We tested age-related changes in SWA (0.4-4Hz) power and odds ratio product (ORP), a standardized measure of sleep depth.

We analyzed the sleep EEG of 572 subjects aged 6-21y (48% female, 26% racial/ethnic minority) and 332 subjects 5-12y followed-up at 12-22y. Multivariable-adjusted analyses tested age-related cross-sectional and longitudinal trajectories of SWA and ORP.

SWA remained stable from age 6 to 10, decreased between ages 11 and 17, and plateaued from age 18 to 21 (p-cubic<0.001); females showed a longitudinal decline 23% greater than males by 13y, while males experienced a steeper slope after 14y and their longitudinal decline was 21% greater by 19y. More mature adolescents (75% femalesses during this developmental period, while those of ORP may reflect global/state control of NREM sleep depth.

To investigate the association of early life abuse with sleep disruption risk in adulthood among U.S. Black women.

We analyzed data from the Black Women's Health Study, a prospective cohort study. In 2005, 29,998 women completed a self-administered questionnaire on early-life experiences of abuse (child and teen) and exposure to danger at any life stage. https://www.selleckchem.com/products/bi-1347.html Participants reported on their sleep quality (snoring and diagnosed sleep apnea) in 2001, whether their "sleep was restless" in 2005, and their average sleep duration in 2009. We used log-binomial regression models to derive risk ratios (RRs) and 95% confidence intervals (CIs) for the association of child/teen abuse and danger at any life stage with snoring, diagnosis of sleep apnea, restless sleep, and short sleep duration.

Nearly 50% of participants reported one or more measure of sleep disruption in adulthood. Higher severity of physical abuse was associated with increased risk of sleep disruption and higher severity of sexual abuse was associated with increased risk for most sleep disruptions. The RR comparing child/teen physical and sexual abuse relative to no abuse was highest for diagnosed sleep apnea (2.03, 95% CI 1.70, 2.41). Feeling in danger at any life stage (child, teen, adult, past year) was generally associated with greater increases in risk of sleep disruption among women with a history of early life abuse than among women without such a history.

Our findings suggest that abuse as a child and/or teen is related to disrupted sleep in adulthood.

Our findings suggest that abuse as a child and/or teen is related to disrupted sleep in adulthood.

Undisturbed sleep has been shown to be important for both health and quality of life (Medic etal. [7]). The World Health Organization estimates that nearly 25% of the population suffers from disturbed sleep due to environmental noise (Health TWECfEa, [2]). Sleep disturbance associated with elevated noise levels is particularly prevalent in metropolitan areas. Our study tested the hypothesis that white noise would improve sleep in New Yorkers complaining of sleep difficulty due to elevated sound levels.

Ten adult participants were included in this study. All participants were recruited from a New York City based sleep clinic. Inclusion criteria was based on the presence of sleep disturbance and the reporting of high levels of environmental noise in participants' sleep location. The study was conducted using a within-subject, ABA design, with baseline, treatment phase, followed by another baseline (washout) period. Each phase lasted one-week, during which noise level and sleep were assessed. The treatment cironmental noise. This suggests that the application of white noise may be an effective tool in helping to improve sleep in those settings.

Our data show that white noise significantly improved sleep based on subjective and objective measurements in subjects complaining of difficulty sleeping due to high levels of environmental noise. This suggests that the application of white noise may be an effective tool in helping to improve sleep in those settings.

We conducted a meta-analysis and systematic review to identify a reliable estimate of sleep problems prevalence among children in mainland China and to describe its epidemiological characteristics.

Relevant studies were searched thoroughly via electronic databases included China National Knowledge Infrastructure, Wanfang, Weipu, PubMed, Embase and Medline databases from inception until December 2020. Prevalence estimates were calculated by random-effects models. The sources of heterogeneity were explored using subgroup analyses and Meta-regression analysis, and publication bias was estimated by funnel plots and Egger's Test.

Overall, 66 studies were included in this meta-analysis, which revealed that the pooled prevalence of sleep problems was 37.6% (95%CI 34.3-40.9%) with high heterogeneity (I

=99.6%,P<0.001). The incidence of snoring was 7.7%, choking or gasping was 0.9%, apnea was 1.5%, restless sleep was 11.3%, mouth breathing was 4.7%, hyperhidrosis was 17.2%, leg movements was 2.7%, bruxism waildren in economically backward areas.

The aim of this study was twofold. First, to confirm the deleterious aspect of evening screen exposure in school-aged children, in particular the effect of screens in the bedroom. Second, to explore the three-way association between degree of screen exposure, sleep disturbance, and ADHD symptoms. Solid evidence exists on the link between sleep disturbance and ADHD symptoms, and screen exposure and sleep disturbance. However, no studies have formally assessed the impact of screen exposure on ADHD symptoms in children, as a function of sleep disturbance.

Parents of 374 French children (201 girls, 173 boys, mean age of 10.8±2.8 years old) completed the Sleep Disturbance Scale for Children (SDSC), the Attention-Deficit/Hyperactivity Disorder (ADHD) Rating Scale, and a questionnaire about their children's screen habits (total hours in the morning, afternoon, and evening per day). Correlational analyses between evening screen exposure, sleep quality and behavioral problems were conducted. Then, formal mediationsewhere) in future studies.

Changes have occurred in children's sleep habits during the coronavirus disease 2019 (COVID-19) pandemic. The purpose of this study was to compare the sleep patterns during the COVID-19 pandemic of school age children of health worker parents (Group 1) and non-health worker parents (Group 2).

One hundred twenty-two participants were included in Group 1 and 250 in Group 2. The families' sociodemographic characteristics (education levels and occupations of mothers and fathers, parental shift-working status, monthly family income, number of children in the family, and place of residence), general information for the children taking part (diagnosis of COVID-19 or COVID-19 related isolation, distance education, participation in sporting activities, time spent watching TV, time devoted to reading, time spent on telephones/tablets/computers, and time spent on indoor activities), and the responses given to the Children's Sleep Habits Questionnaire (CSQH)-abbreviated form were all examined.

Group 1 consisted of for the first time in this study. Further assessment of the effects of the COVID-19 pandemic on children's sleep habits is now required, and appropriate measures must be taken in the light of the results obtained.

The literature has shown a widespread use of portable electronic devices among children over the last years. This study aimed to identify the availability of different media devices at home versus in children's bedroom according to the socioeconomic status (SES), and analyze the association between that availability and children's screen- and sleep-time on week and weekend days.

Data from 3 to 10 year-old children (n=8430) from a cross-sectional study conducted in Portugal (2016/17) was used. Screen- and sleep-time, availability of media devices, father and mother education (as a proxy measured of SES) were assessed via questionnaire.

Available devices at home were significantly more common among high-SES families; while media devices in the bedroom were more frequent in low-SES families (p<0.001). In preschool and elementary school-aged children, media devices in the bedroom were associated with increase screen-time and shorter sleep per day. Also, mobile devices in the bedroom were shown to exert similar, or even more, influence on children's screen- and sleep-time as television.

Further research is needed to explore the pathways by which different electronic media negatively impacts on children's sleep and screen-time and to develop effective strategies to minimize device access at bedtime.

Further research is needed to explore the pathways by which different electronic media negatively impacts on children's sleep and screen-time and to develop effective strategies to minimize device access at bedtime.