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Clinical study on the role of LncRNA STX17‐AS1 in wound healing and hypertrophic scar formation

Abstract

Wound healing is a complex process that can lead to hypertrophic scarring (HS) when dysregulated. The role of lncRNAs in this process is increasingly recognized, yet the specific contributions of lncRNA STX17-AS1 require elucidation. This study investigated the expression of STX17-AS1, its regulatory effects on miR-145-5p, and downstream targets, highlighting its impact on wound repair and HS development. In a cohort of 20 HS patients and 20 matched controls, we assessed the expression of STX17-AS1, miR-145-5p and PDK1 via real-time PCR and immunohistochemistry. We correlated these expressions with wound characteristics and analysed their regulatory impact on the PI3K/AKT pathway, crucial for cellular proliferation and migration in wound healing. Elevated levels of STX17-AS1 and miR-145-5p in patient samples were correlated with larger wound areas and slower healing rates, suggesting the regulatory imbalance in scar formation. The negative correlation of PDK1 expression with age and its positive association with wound size underscored its relevance in wound repair mechanisms. Functional analysis confirmed the interaction between STX17-AS1 and miR-145-5p and modulation of PDK1, indicating the potential disruption of the PI3K/AKT pathway in the wound healing process. The study identified lncRNA STX17-AS1 as the significant mediator in wound healing, with aberrations in its pathway correlating with impaired healing and HS. The findings proposed lncRNA STX17-AS1 and miR-145-5p as molecular targets to enhance wound healing and prevent pathological scarring, offering a new avenue for therapeutic advances in wound management and regenerative medicine.

Effects of burnout and work engagement in the relationship between self‐efficacy and safety behaviours—A chained mediation modelling analysis

Abstract

Aims

To explore the current situation, influencing factors and pathways of safety behaviour of nurses in tumour specialized hospitals, in order to provide a theoretical basis for managers to manage and train nurses, improve their safety behaviour level and ensure medical safety.

Design

An anonymous cross-sectional survey.

Method

A total of 2147 nurses from Grade A cancer hospitals in 15 provinces of China were selected by a convenient sampling method. Questionnaires were collected through the Questionnaire Star platform. Nurses' safety behaviour was measured using the nurse Safety Behaviour Scale, Self-efficacy by the General Self-efficacy Scale, and nurses' occupational burnout was measured by the occupational Burnout Scale, and work engagement through the the Work Engagement Scale. Structural equation modelling was used to test the relationship among nurses' safety behaviour, general self-efficacy, occupational burnout and work engagement. SPSS25.0 software was used to test the relationship among the safety behaviour of nurses, general self-efficacy, occupational burnout and work engagement.

Results

The total score of safety behaviour of nurses was 55.45 ± 6.879, the total score of general self-efficacy was 31.39 ± 5.729, the total score of occupational burnout was 44.99 ± 26.587, and the total score of work engagement was 38.48 ± 13.433; the scores of the Nurse Safety Behaviour Scale, Self-Efficacy Scale, and Work Engagement Scale were positively correlated (all p < .001); the occupational burnout scale was negatively correlated with the scores of self-efficacy scale, work engagement scale and nurse safety behaviour scale (all p < .001); Structural equation model analysis shows that self-efficacy and work engagement have a direct positive impact on nurse safety behaviour(β = .103, β = .096, all p < .001); Occupational burnout has a direct negative impact on self-efficacy, work engagement and nurse safety behaviour(β = −.371, β = −.413, β = −.328 all p < .001). Bootstrap analysis showed that occupational burnout and job involvement had a significant chain mediating effect between self-efficacy and the safety behaviour of nurses (95% CI: 0.148–0.21). The total effect of self-efficacy on the safety behaviour of nurses was 0.283 (p < .001, 95% CI: 0.225–0.301), the direct effect was 0.096 (p < .001, 95% CI: 0.042–0.15), and the indirect effect was 0.179 (p < .001, 95% CI: 0.085–0.215), The mediating effect accounted for 63.3% of the total effect size.

Conclusion

Occupational burnout and work engagement play a partial mediating role between self-efficacy and nurse safety behaviour. It is necessary to strengthen training on nurse safety culture awareness, improve the nurse self-efficacy and work engagement, reduce nurse occupational burnout, and thereby improve the level of nurses' safety behaviour.

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