The relationship between depression and subjective cognitive decline in older adults of China: the mediating role of general self-efficacy.

Subjective cognitive decline (SCD) is common in older adults and may also be an early marker for future cognitive impairment. Depression is an important influencing factor for subjective cognitive decline in old age. However, the mediating effects of general self-efficacy in depression and subjective cognition are yet to be explored. This study included 308 participants who were ≥60 years. Participants were asked to complete the self-report measures of the Geriatric Depression Scale-15 (GDS-15), Subjective Cognitive Decline-Questionnaire (SCD-Q), and General Self-Efficacy Scale (GSES). We used correlations, regressions, and structural equation models for the analyses. The bootstrapping method was performed to confirm the mediation effect. The subjective cognitive decline was found to be significantly and positively correlated to depression. Bootstrapping mediation analyses indicated that depression could affect SCD not only directly but also indirectly through general self-efficacy. General self-efficacy partly played a mediating role between depression and SCD. Hence, community workers and clinicians should actively help the elderly experiencing low levels of general self-efficacy to reduce their SCD.

The presented probability modulates emotional evaluation of neutral stimuli: insights from ERPs in Go/Nogo task.

The aim of the present study is to investigate the electrophysiological correlates with the subsequent emotional consequence of neutral stimuli by varying the relative probability of Go and Nogo trails. At Go25 condition (25% probability of Go stimuli), Go stimuli produced enhancement value effect and the amplitude of P3 component was larger than other Go conditions. In contrast, at Nogo 50 condition (50% probability of Nogo stimuli), Nogo stimuli produced devaluation effect and elicited smaller N2 and larger P3 than other conditions. These data provided evidence for the hypothesis that response and inhibition triggered by neutral stimuli impacted their subsequent emotional evaluation, that is, behavioral response associated with neutral stimuli enhanced their cheerfulness evaluation, whereas response inhibition produced devaluation effects.

Differential expression of long non-coding RNA Regulator of reprogramming and its molecular mechanisms in polycystic ovary syndrome.

BACKGROUND: Polycystic ovary syndrome (PCOS) is a common endocrine disease in women of reproductive age. Multiple studies have shown that long non-coding RNAs (lncRNA) and microRNAs (miRNA) play a role in PCOS. This study aimed to explore the role and molecular mechanism of lncRNA -Regulator of reprogramming (lncROR) in PCOS. RESULTS: Expression level of lncROR in PCOS patients was up-regulated, while level of miR-206 was down-regulated in comparison with control group (P < 0.001). Logistics regression analysis showed that lncROR and miR-206 were independent predictors of PCOS. The ROC curve showed that lncROR had a high diagnostic value for PCOS with an AUC value of 0.893. Pearson correlation coefficient indicated that the expression level of miR-206 was negatively correlated with the level of lncROR. CCK-8 assay and apoptosis assay revealed that downregulation of lncROR up-regulated the expression of miR-206, thereby inhibiting cell proliferation and promoting cell apoptosis. However, silencing the expression of miR-206 reversed the above effects caused by down-regulation of lncROR expression. Luciferase reporter gene assay suggested that there was a target relationship between lncROR and miR-206. VEGF was proved to be the target gene of miR-206. CONCLUSIONS: Highly expressed lncROR indirectly up-regulated the expression of VEGF by down-regulating the expression of miR-206, thereby promoting the proliferation of KGN cells and inhibiting apoptosis, and further promoting the development of PCOS.

The Patterns and Predictors of Loneliness for the Chinese Medical Students Since Post-Lockdown to New Normal With COVID-19.

Background: The coronavirus disease 2019 (COVID-19)-related quarantine has had unique psychological challenges for medical students, particularly loneliness. In this study, we demonstrated the patterns and predictors of loneliness in medical students since post-lockdown to new normal with COVID-19. Methods: A convenience sampling method was used in this study. Face-to-face online questionnaires of UCLA Loneliness Scale and psychological characteristics scales were completed by 1,478 participants. Latent profile analysis and multinominal logistic regressions were performed. Results: Three latent profile models were identified in this study: low loneliness (52.3%), interpersonal sensitivity loneliness (3.5%), and high loneliness (44.1%). Sophomore (Est = 1.937; p < 0.05) and junior students (Est = 2.939; p < 0.05), neuroticism (Est = 2.475; p < 0.05), high arousal symptoms (Est = 2.618; p < 0.01), and the quality of support from friends (Est = 2.264; p < 0.05) were the risk factors for high loneliness profile. In addition, sophomore (Est = 2.065; p < 0.05) and junior students (Est = 2.702; p < 0.01), openness (Est = 2.303; p < 0.05), and conscientiousness personality (Est = -2.348; p < 0.05) were the predictors of an interpersonal sensitive loneliness profile. Good peer relationship (Est = -2.266; p < 0.05) and other support (Est = -2.247; p < 0.05) were protective factors for low loneliness profile. Limitations: Participants were selected from one medical university; the generalizability is limited. Conclusions: Timely loneliness-focused interventions should be targeted on the different profiles and predictors of loneliness in medical students.

Metabolomics Study of Isocaloric Different Dietary Patterns on the Life Span in Healthy Population.

PURPOSE: How to prolong life by diet has been widely concerned. There are many reports about the effects of different dietary patterns on life span, but the results are not consistent. The main reason may be that total energy intake has not been considered. This study aims to explore the effects of isocaloric different dietary patterns on population life span. MATERIALS AND METHODS: From the data of the follow-up population, eligible participators were divided into normal control (NC) group (28.31% fat, 12.37% protein, 62.30% carbohydrate), isocaloric high-fat (IHF) group (38.39% fat, 12.21% protein, 51.32% carbohydrate), isocaloric high-protein (IHP) group (33.41% fat, 17.10% protein, 52.67% carbohydrate) and isocaloric high-carbohydrate (IHC) group (22.23% fat, 10.52% protein, 70.13% carbohydrate) according to the dietary structure and the age stratification. Global serum metabolic profiling analysis by UPLC-Q-TOF-MS/MS technology, fatty acid and amino acid profiles in serum were determined by GC-MS and UPLC-TQ-MS technology. One-way ANOVA followed by Dunnett post hoc test and receiver operating characteristic (ROC) curve analysis were used to statistical analysis. RESULTS: Non-targeted metabolomics was to identify 18 potential metabolites related to longevity. ROC curve analysis to identify biomarkers indicated that the areas under the ROC (AUC) of the 12 of 18 biomarkers are above 0.9. The 12 biomarkers were mainly enriched in three metabolic pathways: lipid metabolism, amino acid metabolism and tricarboxylic acid cycle. Compared to control, 11 and 10 of 12 biomarkers showed the same trend with aging in IHP and IHC groups, respectively. Conversely, no differences were observed between IHF group and NC group. CONCLUSION: Without consideration of the nature of carbohydrates, fats and proteins, IHP and IHC diets might shorten life span by influencing amino acid metabolism, lipid metabolism and tricarboxylic acid cycle metabolism, while the isocaloric IHF diet has no effects on longevity.

Effects Of Modified Mindfulness-Based Stress Reduction (MBSR) On The Psychological Health Of Adolescents With Subthreshold Depression: A Randomized Controlled Trial.

BACKGROUND: Sub-threshold depression (SD) has been associated with impairments in adolescent health which increase the rate of major depression. Researchers have shown the effectiveness of mindfulness on mental health, however whether the traditional mindful skills were suitable for youngsters, it was not clear. This study investigated the effects of a tailed Mindfulness-based stress reduction (MBSR) on their psychological state. METHODS: A double-blind, randomized controlled trial was carried out. 56 participants who met the inclusion criteria agreed to be arranged randomly to either the MBSR group (n=28) or the control group (n=28). Participants in MBSR group received a tailored 8-week, one time per week, one hour each time group intervention. The effectiveness of intervention was measured using validated scales, which including BDI-II, MAAS, RRS at three times (T1-before intervention; T2-after intervention; T3-three months after intervention). A repeated-measures analysis of variance model was used to analyze the data. RESULTS: The results showed significant improvements in MBSR group comparing with control group that depression level decreased after the 8-week intervention and the follow up (F =17.721, p < 0.00). At the same time, RRS score was significantly decreased at T2 and T3(F= 28.277, p < 0.00). The results also showed that MBSR promoted the level of mindfulness and the effect persisted for three months after intervention (F=13.489, p < 0.00). CONCLUSION: A tailored MBSR intervention has positive effects on psychology health among SD youngsters, including decrease depression and rumination level, cultivate mindfulness.