The positive effect of social support on psychological distress among Chinese lung cancer patients: The mediating role of self-esteem

Development and validation of a web-based calculator for determining the risk of psychological distress based on machine learning algorithms: A cross-sectional study of 342 lung cancer patients

PURPOSE

Early and accurate identification of the risk of psychological distress allows for timely intervention and improved prognosis. Current methods for predicting psychological distress among lung cancer patients using readily available data are limited. This study aimed to develop a robust machine learning (ML) model for determining the risk of psychological distress among lung cancer patients.

METHODS

A cross-sectional study was designed to collect data from 342 lung cancer patients. Least Absolute Shrinkage and Selection Operator (LASSO) was used for feature selection. Model training and validation were conducted with bootstrap resampling method. Fivefold cross-validation evaluated and optimized the model with parameter tuning. Feature importance was assessed using SHapley additive exPlanations (SHAP) method.

RESULTS

The model identified seven independent risk factors of psychological distress: residence (β = 0.141), diagnosis duration (β = 0.055), TNM stage (β = 0.098), pain severity (β = 0.067), perceived stigma (β = 0.052), illness perception (β = 0.100), and coping style (β = 0.097). Among the eight ML algorithms evaluated, the extreme gradient boosting (XGBoost) algorithm demonstrated the highest performance with AUROC values of 0.988, 0.945, and 0.922 for the training, validation, and test sets, respectively. The model's results were further explained using SHAP, which revealed the importance and contribution of each risk factor to the overall distress risk. A web-based tool was developed based on this model to facilitate clinical use.

CONCLUSION

The XGBoost classifier demonstrated exceptional performance, and clinical implementation of the web-based risk calculator can serve as an easy-to-use tool for health practitioners to formulate early prevention and intervention strategies.

The role of NOP58 in prostate cancer progression through SUMOylation regulation and drug response

Background

Prostate cancer is one of the leading causes of cancer-related deaths in men. Its molecular pathogenesis is closely linked to various genetic and epigenetic alterations, including posttranslational modifications like SUMOylation. Identifying biomarkers that predict outcomes and specific therapeutic targets depends on a comprehensive understanding of these processes. With growing interest in SUMOylation as a mechanism affecting prostate cancer-related genes, this study aimed to investigate the central role of SUMOylation in prostate cancer prognostics, focusing on the significance of NOP58.

Methods

We conducted a comprehensive bioinformatics analysis, integrating differential expression analysis, survival analysis, gene set enrichment analysis (GSEA), and single-cell transcriptomic analyses using data from The Cancer Genome Atlas (TCGA). Key genes were identified through intersections of Venn diagrams, Boralta algorithm signatures, and machine learning models. These signaling mechanisms were validated through experimental studies, including immunohistochemical staining and gene ontology analyses.

Results

The dual-gene molecular subtype analysis with SUMO1, SUMO2, and XPO1 genes revealed significant differences in survival outcomes across molecular subtypes, further emphasizing the potential impact of NOP58 on SUMOylation, a key post-translational modification, in prostate cancer. NOP58 overexpression was strongly associated with shorter overall survival (OS), progression-free interval (PFI), and disease-specific death in prostate cancer patients. Immunohistochemical analysis confirmed that NOP58 was significantly overexpressed in prostate cancer tissues compared to normal tissues. ROC curve analysis demonstrated that NOP58 could distinguish prostate cancer from control samples with high diagnostic accuracy. Gene Ontology analysis, along with GSVA and GSEA, suggested that NOP58 may be involved in cell cycle regulation and DNA repair pathways. Moreover, NOP58 knockdown led to increased BCL2 expression and decreased Ki67 levels, promoting apoptosis and inhibiting cell proliferation. Colony formation assays further showed that NOP58 knockdown inhibited, while its overexpression promoted, colony formation, highlighting the critical role of NOP58 in prostate cancer cell growth and survival. Additionally, NOP58 was linked to drug responses, including Methotrexate, Rapamycin, Sorafenib, and Vorinostat.

Conclusion

NOP58 is a key regulator of prostate cancer progression through its mediation of the SUMOylation pathway. Its expression level serves as a reliable prognostic biomarker and an actionable therapeutic target, advancing precision medicine for prostate cancer. Targeting NOP58 may enhance therapeutic efficacy and improve outcomes in oncology.

Peer Supporters' Experience of Supporting Cancer Patients: A Meta-synthesis

BACKGROUND

With the widespread use of peer support in the cancer field, more and more cancer survivors are becoming supporters. However, they may bear a huge psychological burden in the peer support project. There has been little effort to analyze supporters' experiences from a meta-perspective.

OBJECTIVE

The aims of this study were to review the literature on the experience of patients serving as peer supporters, integrate qualitative data to explore the experiences of supporters participating in peer support programs, and provide suggestions for future researchers.

INTERVENTIONS/METHODS

China Knowledge Network, Wanfang Database, China Biomedical Literature Database, PubMed, Cochrane Library, Embase, CINAHL, and PsycINFO were searched. Titles, abstracts, and full texts were screened. Included articles (n = 10) underwent data extraction, the Joanna Briggs Institute Critical Appraisal Tool for qualitative researches (2016) quality evaluation, and thematic synthesis.

RESULTS

The literature ultimately included 10 studies from which 29 themes were distilled and grouped into 2 main categories: benefits and challenges of peer support for supporters.

CONCLUSIONS

Peer supporters will not only gain social support, growth, and recovery but also experience various challenges when providing peer support. Both supporters' and patients' experiences of participating in peer support programs deserve the attention of researchers. Researchers need to be rigorous in controlling the implementation of peer support programs to help supporters gain and overcome challenges.

IMPLICATIONS FOR PRACTICE

Future researchers can use study findings to better develop peer support programs. More peer support projects are needed to explore a standardized peer support training guide.

Structural Equation Model of Factors Related to Death Anxiety for Chinese Patients with Cancer

This study aimed to develop a model that specifies the predictive effects of factors on death anxiety among Chinese patients with cancer using structural equation modeling. Using convenience sampling, data were collected from 353 cancer patients. Self-administered questionnaires included Social Support Rating Scale, Rosenberg Self-Esteem Scale, Connor Davidson Resilience Scale, Templer's Death Anxiety Scale, and socio-demographic factors. The results showed that social support, self-esteem, and resilience significantly impacted death anxiety. The final model fitted the data acceptably (χ2 = 37.319, df =31, p = 0.201). Social support mediated death anxiety through self-esteem and resilience. Resilience mediated the buffer effect of self-esteem on death anxiety as an intermediary factor. Findings suggest the need for further studies to explore effective interventions to provide social support and improve self-esteem and resilience among patients with cancer to alleviate death anxiety.

Relationship Between Resilience, Social Support, Existential Well-Being and Negative Emotions in Cervical Cancer Patients: a Mediation Analysis

Background: The patients of cervical cancer have more negative emotions and lower quality of life. The aim of this study was to explore the relationships between existential well-being (EWB), social support, resilience, negative emotions in patients with cervical cancer, and to examine whether resilience mediates the associations between EWB or social support and negative emotions. Material and methods: This study enrolled patients with cervical cancer who were treated at the Tianjin Medical University Cancer Institute and Hospital in China during 2012-2019. The Hospital Anxiety and Depression Scale (HADS), the Resilience Scale of 14 items (RS-14) and the McGill Quality of Life Questionnaire (MQOL) were utilized to assess patient's anxiety, depression, resilience, social support and EWB via telephone. Spearman's correlation analyses were used to assess bivariate correlations, and mediation analyses were applied to examine whether resilience mediated the relationship between social support or EWB and negative emotions. Results: A total of 150 (92.0%) out of 163 eligible patients completed the questionnaires. EWB and social support were negatively correlated with anxiety (r=-0.560 and r=-0.561) and depression (r=-0.508 and r=-0.526), and positively correlated with resilience (r=0.691 and r=0.652). Resilience was negatively associated with anxiety (r=-0.545) and depression (r=-0.505). Negative direct effects of social support on anxiety and EWB on anxiety and depression were statistically significant (P<0.05). Resilience played a partial mediating role in the relationship between EWB and depression (β=-0.085, 95%CI: -0.150 to -0.020), accounting for 37.12% of the total effect. It also served as a partial mediator in the association between EWB and anxiety (β=-0.061, 95%CI: -0.107 to -0.015), explaining 34.46% of the overall effect. Additionally, resilience partially mediated the connection between social support and depression (β=-0.173, 95%CI: -0.312 to -0.053), explicating 57.48% of the total effect. Conclusions: A combination of existential, supportive and resilient interventions may help reduce psychological distress and improve quality of life among cervical cancer patients, thereby promoting both physical and psychological health.

Efficacy and mechanisms of 4-week MBSR on psychological distress in lung cancer patients: A single-center, single-blind, longitudinal, randomized controlled trial

Objective

This study aimed to evaluate the efficacy of a 4-week mindfulness-based stress reduction (MBSR) program on psychological distress in patients with lung cancer and elucidate its mechanisms.

Methods

This single-center, single-blinded, longitudinal, randomized controlled trial was conducted on 175 patients with lung cancer randomly allocated to a 4-week MBSR or a waiting-list group. The efficacy and mechanisms of the 4-week MBSR program were evaluated by outcome measures at preintervention (T0), the immediate postintervention (T1), 1 month (T2), and 3 months (T3). We analyzed the collected data using the per-protocol set principle, independent sample t-test, repeated measure analysis of variance, and structural equation modeling.

Results

The 4-week MBSR program significantly alleviated psychological distress (F ​= ​15.05, P ​< ​0.001), decreased perceived stigma (F ​= ​8.260, P ​= ​0.005), improved social support (F ​= ​16.465, P ​< ​0.001), and enhanced mindfulness (F ​= ​17.207, P ​< ​0.001) compared with usual care at T1, T2, and T3. All variables significantly changed over time except for copying style (P ​= ​0.250). The changes in social support, mindfulness, and perceived stigma mediated the efficacy of the 4-week MBSR program on psychological distress (β ​= ​-0.292, P ​= ​0.005; β ​= ​-0.358, P ​= ​0.005).

Conclusions

This study shows the benefits of the MBSR program for psychological distress, social support, mindfulness, and perceived stigma in patients with lung cancer. Also, it elucidates the mechanisms by which the MBSR program alleviates psychological distress by improving social support, enhancing mindfulness, and decreasing perceived stigma. The findings provide insights into applying the MBSR program to reduce psychological distress among patients with lung cancer.

Self-efficacy and positive coping mediate the relationship between social support and resilience in patients undergoing lung cancer treatment: A cross-sectional study

Background

The prognosis of patients undergoing lung cancer treatment might be influenced by mental health status. Resilience is one of the important predictors to reflect the mental health status. It has been shown that patients with higher levels of social support, self-care self-efficacy, and positive coping have greater resilience. This study aimed to determine the mediating role of self-efficacy and positive coping in the relationship between social support and psychological resilience in patients with lung cancer.

Method

This is a cross-sectional study that was conducted in in the oncology departments and thoracic surgical wards of four tertiary hospitals in Hunan Province, China, between November 2016 and November 2017. Three hundred and three patients who were undergoing treatment for lung cancer volunteered their participation in the study. Participants completed questionnaires, including the Chinese version of the Perceived Social Support Seale Scale, the Chinese version of Strategies Used by People to Promote Health Scale, and the Chinese version of the Connor-Davidson Resilience Scale.

Results

Mediation analysis indicated that self-care self-efficacy and social support partially mediate the effect of social support on resilience. Direct paths from social support to self-efficacy, self-efficacy to positive coping, positive coping to psychological resilience, self-efficacy to psychological resilience, and social support to psychological resilience were significant (p &lt; 0.001). The indirect paths from social support to self-efficacy and self-efficacy to psychological resilience were also significant. The chain mediation from social support to self-efficacy, self-efficacy to positive coping, and positive coping to resilience were significant.

Conclusion

Self-efficacy and positive coping play an important role in the relationship between social support and resilience in patients receiving cancer treatment. Social support not only directly influenced psychological resilience but also indirectly influenced psychological resilience through self-efficacy and positive coping.

Mindfulness Affects the Level of Psychological Distress in Patients With Lung Cancer via Illness Perception and Perceived Stress: A Cross-Sectional Survey Study

Purpose

The aims of the study were first to investigate the association between illness perception and psychological distress and second to determine whether mindfulness affects psychological distress via illness perception and perceived stress in patients with lung cancer.

Methods

Among 300 patients with lung cancer who participated in this cross-sectional study, 295 patients made valid responses to distress thermometer (DT), the Five Facet Mindfulness Questionnaire (FFMQ), the Brief Illness Perception Questionnaire (B-IPQ), and the Perceived Stress Scale (PSS) between January and July 2021. The possible pathways of mindfulness affecting psychological distress were analyzed based on the structural equation modeling analysis.

Results

A total of 24.4% patients with lung cancer had DT > 4. Illness perception (β = 0.17, p = 0.002) and perceived stress (β = 0.23, p < 0.001) had a direct effect on psychological distress. Mindfulness had a direct effect on illness perception (β = -0.16, p = 0.006) and mindfulness indirectly influenced psychological distress (β = -0.04, p = 0.009) through affecting illness perception alone or simultaneously affecting both the illness perception and perceived stress in patients with lung cancer.

Conclusion

Lung cancer suffered from varying levels of psychological distress. Mindfulness may alleviate psychological distress by reducing the level of illness perception and perceived stress. We suggest developing a comprehensive factor model to clarify potential mechanisms of mindfulness on psychological distress due to the very low effect of mindfulness on psychological distress via illness perception and perceived stress.

The positive effect of social support on psychological distress among Chinese lung cancer patients: The mediating role of self-esteem

AIM

To investigate the effect of social support on psychological distress among Chinese lung cancer patients and clarify the mediating role of self-esteem.

DESIGN

A cross-sectional descriptive correlational survey of 441 Chinese lung cancer patients was designed.

METHODS

Self-esteem was supposed to play a mediating role in the association between social support and psychological distress. We collected demographic information, the Distress Thermometer, Multidimensional Scale of Perceived Social Support and Rosenberg Self-Esteem Scale.

RESULTS

Our revised model demonstrated an acceptable fit to the data (χ²  = 37.489, comparative fit index (CFI) = 0.965, Tucker-Lewis index (TLI) = 0.926, root mean square error of approximation [RMSEA] = 0.099). Social support had a direct effect on self-esteem and psychological distress, and self-esteem had also a direct effect on psychological distress. Meanwhile, self-esteem also partially mediated the relationship between social support and psychological distress among Chinese lung cancer patients.