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Background School nurses perform vital student emergency services at school, and assessing their emergency nursing care competency is critical to the safety and quality of care students receive. The purpose of the study was to develop a scale for measuring school nurses’ competency. Methods This was an instrument development and validation study. It was conducted according to the revised DeVellis scale development process coupled with the application of the International Council of Nurses’ Nursing Care Continuum Competencies Framework. Eight experts specializing in school health and emergency care evaluated the content validity, while 386 school nurses evaluated the scale. The validity evaluation comprised factor analysis, discriminative validity analysis according to differences in school nurse experience, and criterion validity analysis. Scale internal consistency was analyzed using Cronbach’s α value. Results The final scale comprises a self-reported 5-point Likert scale with 30 items based on three factors and three sub-factors. Both the convergent validity of the items by factor and the discriminative validity were both confirmed. The criterion validity was also found to be positively correlated with the Triage Competency Scale. Conclusion The scale may be used to identify factors influencing school nurses’ competency in emergency nursing care and contribute to research in competency-based education programs.

This secondary analysis used data collected for the Korean Longitudinal Study of Aging from 2006 to 2018 to examine changes in life satisfaction among middle-aged adults living alone in South Korea. Individuals who were over 45 years of age, lived alone at the time of the first data collection wave, and responded at least twice to the survey over the 12-year study period were included in the final linear mixed model ( N = 124). Life satisfaction increased for those who had increased assets, were widowed, and had more frequent contact with acquaintances (i.e., once a month and once a week compared with once a year). Life satisfaction decreased as the number of chronic illnesses increased for underweight individuals compared with normal weight or overweight individuals and for depressed versus non-depressed individuals. This study’s findings indicate that increased social support is beneficial for middle-aged marginalized individuals, including those who are economically disadvantaged, have few social interactions, are underweight, and have chronic illnesses.

This study examined gender differences in health behaviors for the risk of metabolic syndrome (MetS) among middle-aged adults using nationally representative data from the Seventh Korea National Health and Nutrition Examination Survey (2016–2018). The sample included data from 8677 middle-aged adults. The Health Practice Index measured health behaviors, including smoking, alcohol use, physical activity, sleeping, eating breakfast, working hours, nutritionally balanced diet, and mental stress. Complex sample multiple logistic regression analyses were conducted to determine the association between the Health Practice Index (HPI) and MetS. Men and women with poor or moderate HPI scores had significantly higher risks of having MetS than those with good HPI scores. Controlling for covariates, high-risk alcohol use (p < 0.001) and physical activity (p = 0.008) were associated with the risk of MetS in men and women, respectively. Men reporting alcohol use and women lacking a healthy diet were, respectively, 2.056 times (adjusted odds ratio (OR) = 2.056, 95% CI: 1.681–2.514) and 1.306 times (adjusted OR = 1.306, 95% CI: 1.075–1.587) more likely to have increased risks of MetS. Given these gender differences in health behaviors, developing tailored interventions could be beneficial in preventing MetS among middle-aged men and women.

IntroductionAs educators and health professionals, school nurses are in an optimal position to improve and advocate for adolescent reproductive and sexual health. This report outlines a protocol for a systematic review to synthesize evidence on the effects of school nurse-led education interventions and barriers and facilitators to implementing the interventions to improve students’ knowledge, attitudes and behaviours related to sexual and reproductive health in high-income countries.Methods and analysisWe will develop a protocol to systematically review school nurse-led education interventions aimed at promoting adolescent sexual and reproductive health. This protocol will be based on the methodology of the Cochrane Handbook for Systematic Reviews of Interventions. The search will be conducted in Ovid-MEDLINE, CINAHL, Cochrane Library, Ovid-Embase, PsycINFO, Koreamed and ScienceON using relevant Medical Subject Headings and text words to identify the literature on different types of studies examining school nurse-led sexual and reproductive health education interventions in April 2024. Two independent reviewers will select relevant studies and extract data using a predefined template. We will assess methodological quality using the risk-of-bias tools appropriate for study designs and will resolve discrepancies through discussion with the review team. Where appropriate, we will conduct meta-analyses to estimate the effectiveness of school nurse-led sexual and reproductive health education interventions. Additionally, a qualitative evidence synthesis will be performed for the qualitative research included in the review. Finally, both a quantitative synthesis and a qualitative synthesis will be combined into a secondary synthesis addressing the facilitators and barriers of sexual and reproductive health educational interventions provided by school nurses to adolescents.Ethics and disseminationThis review will synthesise publicly available resources and does not require ethical approval. The findings will provide insights into how school nurses can improve students’ sexual and reproductive health. The results will be disseminated through peer-reviewed publications, reports and academic conferences.PROSPERO registration numberCRD42022347625.

Treatment of experimental autoimmune encephalomyelitis (EAE) mice with the estrogen receptor (ER) β ligand diarylpropionitrile (DPN) has been shown to have neuroprotective effects via stimulation of endogenous myelination. The direct cellular mechanisms underlying the effects of this ERβ ligand on the central nervous system are uncertain because different cell types in both the peripheral immune system and central nervous system express ERs. ERβ is the target molecule of DPN because DPN treatment fails to decrease EAE clinical symptoms in global ERβ-null mice. Here we investigated the potential role of ERβ expression in cells of oligodendrocyte (OL) lineage in ERβ ligand-mediated neuroprotection. To this end, we selectively deleted ERβ in OLs using the well-characterized Cre-loxP system for conditional gene knockout (CKO) in mice. The effects of this ERβ CKO on ERβ ligand-mediated neuroprotective effects in chronic EAE mice were investigated. ERβ CKO in OLs prevented DPN-induced decrease in EAE clinical disease. DPN treatment during EAE did not attenuate demyelination, only partially improved axon conduction, and did not activate the phosphatidylinositol 3-kinase/serine-threonine-specific protein kinase/mammalian target of rapamycin signaling pathway in ERβ CKO mice. However, DPN treatment significantly increased brain-derived neurotrophic factor levels in ERβ CKO mice. These findings demonstrate that signaling through ERβ in OLs is essential for the beneficial myelination effects of the ERβ ligand DPN in chronic EAE mice. Further, these findings have important implications for neuroprotective therapies that directly target OL survival and myelination.

This study examined the factors associated with triage competency among school nurses in South Korea. Using a convenience sampling method, 386 school nurses employed in elementary, middle, or high schools completed a cross-sectional survey that included a modified version of the Triage Competency Scale for emergency room nurses. Information regarding experience working in schools and hospitals, education level, school types, age, emergency nursing care certifications, school locations, and serious emergency experience at school was collected. Analyses were performed using SPSS version 25.0, independent t-tests, analyses of variance, Spearman’s correlation, and ordinal logistic regression. Triage competency was higher for school nurses who were employed in metropolitan regions (odds ratio [OR] = 1.63, p = 0.017) and had serious emergency experience (OR = 1.76, p = 0.008). As the participants’ experience at schools or hospitals increased by one year, their triage competency score increased by 2% (OR = 1.02, p = 0.037) and 14% (OR = 1.14, p < 0.001), respectively. These findings could be used to develop policies and educational programs that promote school nurses’ triage competency. Further, they suggest the importance of establishing an organizational support system to develop guidelines and a feedback system to improve school nurses’ triage competency.

Significance In the search for effective multiple sclerosis treatment, much effort has been invested in estrogens and estrogen receptor (ER) agonists because of their neuroprotective benefits. However, because estrogens can produce ERα-based feminizing effects and cancer, ERβ agonists represent more desirable therapeutic candidates. The structurally unique ERβ ligand indazole chloride (Ind-Cl), a halogen-substituted phenyl-2H-indazole core, is a preclinical development candidate with a strong dossier. Our results indicate that Ind-Cl is effective in functionally ameliorating disease even when treatment is initiated at peak experimental autoimmune encephalomyelitis clinical disease. Ind-Cl’s immunomodulatory and direct remyelinating effects result in motor dysfunction amelioration. These findings support Ind-Cl's potential to provide unique therapeutic benefits to patients with multiple sclerosis, as well as patients affected by other demyelinating disorders. Currently available immunomodulatory therapies do not stop the pathogenesis underlying multiple sclerosis (MS) and are only partially effective in preventing the onset of permanent disability in patients with MS. Identifying a drug that stimulates endogenous remyelination and/or minimizes axonal degeneration would reduce the rate and degree of disease progression. Here, the effects of the highly selective estrogen receptor (ER) β agonist indazole chloride (Ind-Cl) on functional remyelination in chronic experimental autoimmune encephalomyelitis (EAE) mice were investigated by assessing pathologic, functional, and behavioral consequences of both prophylactic and therapeutic (peak EAE) treatment with Ind-Cl. Peripheral cytokines from autoantigen-stimulated splenocytes were measured, and central nervous system infiltration by immune cells, axon health, and myelination were assessed by immunohistochemistry and electron microscopy. Therapeutic Ind-Cl improved clinical disease and rotorod performance and also decreased peripheral Th1 cytokines and reactive astrocytes, activated microglia, and T cells in brains of EAE mice. Increased callosal myelination and mature oligodendrocytes correlated with improved callosal conduction and refractoriness. Therapeutic Ind-Cl-induced remyelination was independent of its effects on the immune system, as Ind-Cl increased remyelination within the cuprizone diet-induced demyelinating model. We conclude that Ind-Cl is a refined pharmacologic agent capable of stimulating functionally relevant endogenous myelination, with important implications for progressive MS treatment.

This secondary analysis used data collected for the Korean Longitudinal Study of Aging from 2006 to 2018 to examine changes in life satisfaction among middle-aged adults living alone in South Korea. Individuals who were over 45 years of age, lived alone at the time of the first data collection wave, and responded at least twice to the survey over the 12-year study period were included in the final linear mixed model (N = 124). Life satisfaction increased for those who had increased assets, were widowed, and had more frequent contact with acquaintances (i.e., once a month and once a week compared with once a year). Life satisfaction decreased as the number of chronic illnesses increased for underweight individuals compared with normal weight or overweight individuals and for depressed versus non-depressed individuals. This study's findings indicate that increased social support is beneficial for middle-aged marginalized individuals, including those who are economically disadvantaged, have few social interactions, are underweight, and have chronic illnesses.

IntroductionThe utility of pancreaticoduodenectomy (PD) for high-grade traumatic injuries remains unclear and data surrounding its use are limited. We hypothesized that PD does not result in improved outcomes when compared with non-PD surgical management of grade IV–V pancreaticoduodenal injuries.MethodsThis is a retrospective, multicenter analysis from 35 level 1 trauma centers from January 2010 to December 2020. Included patients were ≥15 years of age with the American Association for the Surgery of Trauma grade IV–V duodenal and/or pancreatic injuries. The study compared operative repair strategy: PD versus non-PD.ResultsThe sample (n=95) was young (26 years), male (82%), with predominantly penetrating injuries (76%). There was no difference in demographics, hemodynamics, or blood product requirement on presentation between PD (n=32) vs non-PD (n=63). Anatomically, PD patients had more grade V duodenal, grade V pancreatic, ampullary, and pancreatic ductal injuries compared with non-PD patients (all p<0.05). 43% of all grade V duodenal injuries and 40% of all grade V pancreatic injuries were still managed with non-PD. One-third of non-PD duodenal injuries were managed with primary repair alone. PD patients had more gastrointestinal (GI)-related complications, longer intensive care unit length of stay (LOS), and longer hospital LOS compared with non-PD (all p<0.05). There was no difference in mortality or readmission. Multivariable logistic regression analysis determined PD to be associated with a 3.8-fold greater odds of GI complication (p=0.010) compared with non-PD. In a subanalysis of patients without ampullary injuries (n=60), PD patients had more anastomotic leaks compared with the non-PD group (3 (30%) vs 2 (4%), p=0.028).ConclusionWhile PD patients did not have worse hemodynamics or blood product requirements on admission, they sustained more complex anatomic injuries and had more GI complications and longer LOS than non-PD patients. We suggest that the role of PD should be limited to cases of massive destruction of the pancreatic head and ampullary complex, given the likely procedure-related morbidity and adverse outcomes when compared with non-PD management.Level of evidenceIV, Multicenter retrospective comparative study.