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Quantitative proteomic analysis reveals key proteins involved in radiation-induced brain injury

by Jing Liu, Junshuang Wang, Shuang Lv, Hengjiao Wang, Defu Yang, Ying Zhang, Ying Li, Huiling Qu, Ying Xu, Ying Yan

Objective

Radiation-induced brain injury (RIBI) is a significant complication following radiotherapy for brain tumors, leading to neurocognitive deficits and other neurological impairments. This study aims to identify potential biomarkers and therapeutic targets for RIBI by utilizing advanced proteomic techniques to explore the molecular mechanisms underlying RIBI.

Methods

A rat model of RIBI was established and subjected to whole-brain irradiation (30 Gy). Tandem mass tagging (TMT)-based quantitative proteomics, combined with high-resolution mass spectrometry, was used to identify differentially expressed proteins (DEPs) in the brain tissues of irradiated rats. Gene Ontology (GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were conducted to identify the biological processes and pathways involved. Protein-protein interaction (PPI) networks were constructed to identify key hub proteins.

Results

A total of 35 DEPs were identified, including PHLDA3, APOE and CPE. GO enrichment analysis revealed that the DEPs were mainly involved in lipid transport, cell adhesion, and metabolic processes. KEGG analysis highlighted the enrichment of pathways related to metabolism, tight junctions, and PPAR signaling. APOE was identified as a key hub protein through PPI network analysis, indicating its potential role in RIBI pathophysiology. Immunohistochemistry further validated the increased expression of PHLDA3, APOE, and CPE in the brain tissue of irradiated rats.

Conclusion

This study provides valuable insights into the molecular mechanisms of RIBI by identifying key proteins and their associated pathways. The findings suggest that these proteins, particularly APOE and PHLDA3, could serve as potential biomarkers and therapeutic targets for clinical intervention in RIBI. These results not only enhance our understanding of RIBI’s molecular pathology but also open new avenues for the development of targeted therapies to mitigate radiation-induced neurotoxicity.

Effectiveness of Nurse‐Led Telephone‐Based Follow‐Up Interventions on Health Outcomes in People With Acute Coronary Syndromes: A Systematic Review and Meta‐Analysis of Randomized Controlled Trials

ABSTRACT

Background

Nurse-led telephone-based follow-up interventions play a role in patient follow-up, but at present, no meta-analysis has been found to assess the effectiveness of nurse-led, telephone follow-up interventions for patients with acute coronary syndrome.

Objective

This systematic review and meta-analysis aimed to evaluate the effectiveness of nurse-led telephone-based follow-up interventions on health outcomes in people with acute coronary syndromes.

Design

Systematic review and meta-analysis of randomized controlled trials.

Methods

A comprehensive search of six databases: PubMed, Web of Science, Embase, Cochrane Library, CINAHL and Scopus was conducted from the inception of the databases to 30 September 2023. The Cochrane Risk of Bias Tool was used to assess the methodological quality of the included randomized controlled studies. Review Manager 5.4 and Stata 16.0 were used to conduct statistical analysis.

Results

A total of 12 studies were included. Nurse-led telephone-based follow-up interventions may reduce systolic and diastolic blood pressure (MD = −2.55, 95% CI [−4.16, −0.94]) (MD = −2.15, 95% CI [−3.18, −1.12]) and low-density lipoprotein (MD = −9.06, 95% CI [−14.33, −3.79]) in patients with acute coronary syndrome. However, its effectiveness in controlling high-density lipoprotein (MD = 1.65, 95% CI [−4.30, 7.61]) and reducing total cholesterol (MD = −2.72, 95% CI [−7.57, 2.13]) was uncertain. In addition, the results showed that the nurse-led follow-up intervention did not play a role in improving anxiety (SMD = −0.20, 95% CI [−0.44, 0.04]) and depression (SMD = −0.07, 95% CI [−0.21, 0.06]) in patients with acute coronary syndrome, but it probably improved drug adherence (RR = 1.30, 95% CI [1.05, 1.60]) and smoking cessation (RR = 1.31, 95% CI [1.08, 1.60]).

Linking Evidence to Action

The findings of this review suggest that nurse-led telephone-based follow-up interventions had a potentially positive effect on controlling blood pressure and low-density lipoprotein levels, as well as improving medication adherence and smoking cessation among patients with acute coronary syndrome, compared to usual care. However, the intervention did not appear to significantly impact high-density lipoprotein, total cholesterol, anxiety, and depression, indicating that further research in these areas will be necessary in the future.

Trial Registration

PROSPERO (International Prospective Register of Systematic Reviews): CRD42023465894

Risk Prediction Models for Enteral Nutrition Aspiration in Adult Inpatients: A Systematic Review and Critical Appraisal

ABSTRACT

Objective

To systematically identify and appraise existing risk prediction models for EN aspiration in adult inpatients.

Data Sources

A systematic search was conducted across PubMed, Web of Science Core Collection, Embase, Cochrane Library, CINAHL, China National Knowledge Infrastructure (CNKI), Wanfang Database, China Biomedical Literature Database (CBM) and VIP Database from inception to 1 March 2025.

Study Design

Systematic review of observational studies.

Review Methods

Two researchers independently performed literature screening and data extraction using the Checklist for Critical Appraisal and Data Extraction for Systematic Reviews of Prediction Modelling Studies (CHARMS). The Prediction Model Risk of Bias Assessment Tool (PROBAST) was employed to evaluate both the risk of bias and the clinical applicability of the included models.

Results

A total of 17 articles, encompassing 29 prediction models, were included. The incidence of aspiration was 9.45%–57.00%. Meta-analysis of high-frequency predictors identified the following significant predictors of aspiration: history of aspiration, depth of endotracheal intubation, impaired consciousness, sedation use, nutritional risk, mechanical ventilation and gastric residual volume (GRV). The area under the curve (AUC) was 0.771–0.992. Internal validation was performed in 12 studies, while both internal and external validation were conducted in 5 studies. All studies demonstrated a high risk of bias, primarily attributed to retrospective design, geographic bias (all from different parts of China), inadequate data analysis, insufficient validation strategies and lack of transparency in the research process.

Conclusion

Current risk prediction models for enteral nutrition-associated aspiration show moderate to high discriminative accuracy but suffer from critical methodological limitations, including retrospective design, geographic bias (all models derived from Chinese cohorts, limiting global generalisability) and inconsistent outcome definitions.

Implications for Clinical Practice

Recognising the high bias of existing models, prospective multicentre data and standardised diagnostics are needed to develop more accurate and clinically applicable predictive models for enteral nutrition malabsorption.

Patient or Public Contribution

Not applicable.

Trial Registration

PROSPERO: CRD420251016435

Impact of Social Support on Health Literacy Among People With Diabetes: A Cross‐Sectional Study

ABSTRACT

Aim

In recent years, the critical role of health literacy in diabetes management has become increasingly prominent. The aim of this study was to investigate the impact of social support on health literacy among patients with diabetes, to test the mediating role of self-efficacy and empowerment between social support and health literacy, and the moderating role of eHealth literacy.

Design

A cross-sectional study conducted between August 2023 and June 2024.

Methods

This study adopted the cluster sampling method and conducted a questionnaire survey among 251 patients with diabetes in a tertiary hospital in Wuhu City, Anhui Province. The questionnaires included the Social Support Rating Scale, the Self-Efficacy for Diabetes scale, the Health Empowerment Scale, the eHealth Literacy Scale and the Diabetes Health Literacy Scale.

Results

Social support was positively associated with health literacy in patients with diabetes. Self-efficacy and empowerment mediated the relationship and formed chained mediation pathways respectively. eHealth literacy has a moderating role between self-efficacy and empowerment.

Conclusion

The results revealed that social support influences health literacy among patients with diabetes through the mediating pathways of self-efficacy and empowerment, and that this process is moderated by eHealth literacy. These findings provide a theoretical basis and practical insights for improving health literacy among patients with diabetes.

Implications

Enhancing health literacy among people with diabetes by strengthening social support, self-efficacy and empowerment levels, while focusing on the technology-enabling role of eHealth literacy in this context.

Reporting Method

This study adheres to the relevant EQUATOR guidelines based on the STROBE cross-sectional reporting method.

Patient or Public Contribution

We thank all patients who participated in the study for their understanding and support.

Geriatric Nutritional Risk Index as a Predictor of Major Adverse Limb Events in Older Patients With Peripheral Artery Disease: A Prospective Cohort Study

ABSTRACT

Background and Aim

The geriatric nutritional risk index (GNRI) predicts adverse outcomes in chronic diseases, but its prognostic value for major adverse limb events (MALE) in elderly patients with peripheral artery disease (PAD) remains unverified; thus, this study aimed to establish the association between GNRI and MALE.

Design

A multicenter, prospective study.

Methods

From January 2021 to August 2022, 1200 patients with PAD aged ≥ 60 years were enrolled. Patients were stratified by GNRI value (At-risk group: ≤ 98 vs. No-risk group: > 98). Data were analysed through Kaplan–Meier curves, multivariable Cox regression, restricted cubic spline (RCS) modelling, and subgroup analyses.

Results

Among 1036 completers (13.7% attrition rate), 275 (26.5%) developed MALE during a mean follow-up of 18.9 ± 8.0 months. Kaplan–Meier analysis demonstrated significantly higher MALE incidence in patients in the At-risk group (log-rank p < 0.001). Adjusted Cox models revealed a 45% increased MALE risk in patients in the At-risk group (HR 1.45, 95% CI 1.12–1.86, p = 0.005). RCS identified a non-linear L-shaped relationship (p = 0.006) with inflection at GNRI = 95: Below 95, each 1-unit GNRI increase reduced MALE risk by 9% (HR 0.91, 95% CI 0.88–0.95, p < 0.001), while no significant association existed above 95. Subgroup analyses confirmed consistency across subgroups (all p-interaction > 0.05).

Conclusions

GNRI exhibits a non-linear L-shaped association with MALE risk in elderly patients with PAD, demonstrating critical prognostic utility below the 95 inflection point. Routine GNRI monitoring should be prioritised for patients with GNRI < 95 to guide preventive interventions.

Relevance to Clinical Practice

GNRI should be incorporated as a routine risk assessment tool for elderly patients with PAD, with particular vigilance required for those with GNRI < 95. Prioritising nutritional screening and intervention in patients with GNRI < 95 may potentially improve clinical outcomes.

Patient or Public Contribution

Patients contributed to this study by completing follow-up assessments.

Reporting Method

This study followed the STROBE guidelines.

Symptom Cluster Trajectories Among Patients With Hepatocellular Carcinoma After Partial Hepatectomy: A Longitudinal Study

ABSTRACT

Aims

To investigate types of symptom clusters in patients with hepatocellular carcinoma after partial hepatectomy and explore symptom cluster trajectories over time.

Design

A longitudinal observational study was conducted.

Methods

Symptoms of patients with hepatocellular carcinoma were assessed on the second day, seventh day, third week, fourth week and twelfth week post-operation using the MD Anderson Symptom Assessment Inventory and the Symptom Module for Primary Liver Cancer. Symptom clusters were extracted using exploratory factor analysis, and symptom cluster trajectories were analysed using a latent class growth model.

Results

Two hundred and thirty patients with hepatocellular carcinoma completed the five-point investigation after partial hepatectomy. Three symptom clusters were identified: general somatic, psychological and liver impairment. Each symptom cluster was further categorised into three groups: severe, moderate and low. The severity of the three symptom clusters and subgroups decreased over time.

Conclusion

Three symptom clusters were identified in patients who underwent partial hepatectomy for hepatocellular carcinoma, and symptom cluster trajectories decreased over time during the 12-week postoperative period. These findings will assist healthcare professionals in providing prompt symptom management and improve patient quality of life.

Implications for the Profession and/or Patient Care

Healthcare professionals should evaluate symptom clusters and their trajectories in patients with hepatocellular carcinoma after partial hepatectomy.

Reporting Method

This report was prepared in accordance with the Guidelines for Reporting Cohort Research.

Patient or Public Contribution

Hepatobiliary surgery nurses worked closely with the research team to ensure the questionnaires were fully assessed before being sent to patients. The active participation of patients provided valuable information for the study.

Trial Registration

Chinese Clinical Trial Registry (ChiCTR2400084232)

Construction of an assessment scale for thirst severity in critically ill patients and its reliability and validity

Abstract

Objective

Developing a severity assessment scale for critically ill patients' thirst and conducting reliability and validity tests, aiming to provide healthcare professionals with a scientific and objective tool for assessing the level of thirst.

Methods

Based on literature review and qualitative interviews, a pool of items was generated, and a preliminary scale was formed through two rounds of Delphi expert consultation. Convenience sampling was employed to select 178 ICU patients in a top-three hospital from May 2023 to October 2023 as the study subjects to examine the reliability and validity of the severity assessment scale for critically ill patients' thirst.

Results

The developed severity assessment scale for critically ill patients' thirst consists of 8 evaluation items and 26 evaluation indicators. The agreement coefficients for two rounds of expert consultation were 100% and 92.6% for the positive coefficient, and the authority coefficients were .900 and .906. Kendall's concordance coefficients were .101 and .120 (all p < .001). The overall Cronbach's α coefficient for the scale was .827. The inter-rater reliability coefficient was .910. The Item-Content Validity Index (I-CVI) ranged from .800 to 1.000, and the Scale-Content Validity Index/Average (S-CVI/Ave) was .950.

Conclusion

The critically ill patients' thirst assessment scale is reliable and valid and can be widely used in clinical practice.

Patient or Public Contribution

The AiMi Academic Services (www.aimieditor.com) for English language editing and review services.

Implications for Clinical practice

The scale developed in this study is a simple and ICU-specific scale that can be used to assess the severity of thirst in critically ill patients. As such, the severity of thirst in critically ill patients can be evaluated quickly so that targeted interventions can be implemented according to the patient's specific disease and treatment conditions. Therefore, patient comfort can be improved, and thirst-related health problems can be prevented.

Nursing management of cognitive dysfunction in adults with brain injury: Summary of best evidence‐practiced strategies

Abstract

Objective

To summarize the best evidence-based strategies for the management of cognitive dysfunction in patients with brain injury and to provide a reference for clinical nursing practice.

Design

Review.

Methods

The review was presented using PRISMA guidelines. A systematic search of evidence on the management of cognitive dysfunction in patients with brain injury was conducted in computerized decision systems, guideline websites, professional association websites and comprehensive databases from the date of creation to 21 June 2023. The types of evidence included were clinical decision making, guidelines, evidence summaries, best practices, recommended practices, expert consensus, systematic reviews and meta-analyses. Two researchers trained in evidence-based methodological systems independently evaluated the quality of the literature and extracted, integrated and graded the evidence for inclusion.

Results

A total of 20 articles were selected, including nine guidelines, three expert consensus articles, one clinical practice article and seven systematic reviews, and the overall quality of the literature was high. Thirty pieces of evidence were summarized in seven areas: assessment, multidisciplinary team, rehabilitation program, cognitive intervention, exercise intervention, music intervention and medication management.

Conclusions

This study summarizes the latest evidence on the management of cognitive dysfunction in the care of adults with brain injury and provides a reference for clinical nursing practice. The best evidence should be selected for localized and individualized application in clinical work, and the best evidence should be continuously updated to standardize nursing practice.

Implications for the profession and/or patient care

Patients with cognitive impairment after brain injury often suffer from memory loss, attention deficit and disorientation and are unable to have a normal life and experience much enjoyment, which seriously affects their physical and mental health and creates a great burden of care for their families and society. Best evidence-based strategies for the nursing management of cognitive impairment in brain injury are essential for standardizing clinical nursing practice and providing timely, professional, systematic and comprehensive nursing interventions for patients.

Reporting method

This review is reported following the PRISMA 2020 statement guidelines, as applicable, to enhance transparency in reporting the evidence synthesis.

Trial and protocol registration

This study has been registered with the Fudan University Centre for Evidence-based Nursing, a JBI Centre of Excellence under registration number ES20232566, http://ebn.nursing.fudan.edu.cn/myRegisterList.

Patient or public contribution

No patient or public contribution.

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