bluuebunny/crossref_metadata_2025_split huggingface dataset:
The mediating role of nutritional care literacy on the relationship between self-directed learning ability and nursing competence
Authors: Peng Yanhong , Tan Lingling , Zhang Ke , Zhu Na , Dong Hongjian , Gao Hong 
Published: July 2024

Abstract
Background
Nurses' nursing competence and nutritional care literacy directly affect patients' health and safety. Self-directed learning ability was pervasive throughout the entire work process of nursing work and was the basis for improving both. However, there are few studies has explored the mechanism from the perspective of nutritional care literacy. The purpose of this study was to analyze the relationship between self-directed learning ability and nursing competence, and to explore the mediating role of nutritional care literacy between self-directed learning and nursing competence among clinical nurses in China.

Methods
A cross-sectional survey was conducted among 805 clinical nurses recruited from seven general hospitals in Hunan Province, China, between January 25 and March 6, 2022. The self-directed learning ability, nutritional care literacy and nursing competence of nurses were evaluated through investigation. A total of 799 questionnaires were received, resulting in an response rate of 99.25%.We performed an intermediary modeling to examine the mediating roles of nutritional care literacy on the relationship between self-directed learning ability and nursing competence in clinical nurses.

Results
Self-directed learning ability was positively correlated with nutritional care literacy (r=0.792, P<0.001) and nursing competence (r=0.696, P<0.001). Nutritional care literacy was positively correlated with nursing competence (r=0.658, P<0.001). Nutritional care literacy mediated the relationship between self-directed learning ability and nursing competence. The mediating effect accounted for 32.48% of the total effect and 48.10% of the direct effect .

Conclusions
This study confirmed the positive correlation between self-directed learning ability, nutritional care literacy, and nursing competence. Nutritional care literacy played a mediating role in the relationship between self-directed learning ability and nursing competence. The findings not only provide a novel strategy for cultivating nursing professionals and improving nurse disease care abilities, but also offer a new perspective for nursing educators and managers.
“…We never considered it important…”: a qualitative study on perceived barriers on use of non-pharmacological methods in management of labour pain by nurse-midwives in eastern Tanzania
Authors: Mwakawanga Dorkasi L. , Sirili Nathanael , Chikwala Victor Z. , Mselle Lilian T. 
Published: July 2024

Abstract
Background
A significant number of women experience labour without effective pain management and thus suffer from unbearable labour pain to the extent they term labour as the most agonizing event in their lives. Unresolved labour pain can lead to stress, fear, and confusion, which may compromise placental perfusion and lead to birth asphyxia. Although various pharmacological and non-pharmacological labour pain management methods exist, the use of non-pharmacological methods (NPMs) to manage labour pain has remained low in low-resource settings. This paper explored the barriers for using NPMs to manage labour pain by nurse-midwives in eastern Tanzania.

Methods
We conducted an exploratory qualitative study with 18 nurse-midwives purposefully recruited from the labour wards of two selected district hospitals in eastern Tanzania. Qualitative content analysis guided the data analysis.

Results
Two categories illustrating barriers to using NPMs were generated: individual-level and institutional-level barriers. Individual-level barriers include (i) limited competencies of nurse-midwives on the use of NPMs for managing labour pain, (ii) inadequate exposure to labour pain management practices, (iii) misconceptions about labour pain relief, and (iv) a lack of opportunities for knowledge acquisition. The institutional barriers include (i) a critical staff shortage amidst many clients and (ii) an unfavourable healthcare facility environment.

Conclusion
The implementation of NPMs for labour pain management by nurse-midwives in eastern Tanzania faces several institutional and individual barriers. We recommend addressing both supply- and demand-side barriers. Strengthening nurse midwives’ competencies in NPMs adoption and use and improving the facility environment to ensure privacy during labour can be a starting point for addressing supply-side issues. We recommend dispelling myths and misconceptions through health promotion education to address demand-side barriers.
Short- and long-term impact of aspirin cessation in older adults: a target trial emulation
Authors: Zhou Zhen , Webb Katherine L. , Nelson Mark R. , Woods Robyn L. , Ernst Michael E. , Murray Anne M. , Chan Andrew T. , Tonkin Andrew , Reid Christopher M. , Orchard Suzanne G. , Kirpach Brenda , Shah Raj C. , Stocks Nigel , Broder Jonathan C. , Wolfe Rory 
Published: July 2024

Abstract
Background
The net benefit of aspirin cessation in older adults remains uncertain. This study aimed to use observational data to emulate a randomized trial of aspirin cessation versus continuation in older adults without cardiovascular disease (CVD).

Methods
Post hoc analysis using a target trial emulation framework applied to the immediate post-trial period (2017–2021) of a study of low-dose aspirin initiation in adults aged ≥ 70 years (ASPREE; NCT01038583). Participants from Australia and the USA were included if they were free of CVD at the start of the post-trial intervention period (time zero, T0) and had been taking open-label or randomized aspirin immediately before T0. The two groups in the target trial were as follows: aspirin cessation (participants who were taking randomized aspirin immediately before T0; assumed to have stopped at T0 as instructed) versus aspirin continuation (participants on open-label aspirin at T0 regardless of their randomized treatment; assumed to have continued at T0). The outcomes after T0 were incident CVD, major adverse cardiovascular events (MACE), all-cause mortality, and major bleeding during 3, 6, and 12 months (short-term) and 48 months (long-term) follow-up. Hazard ratios (HRs) comparing aspirin cessation to continuation were estimated from propensity-score (PS) adjusted Cox proportional-hazards regression models.

Results
We included 6103 CVD-free participants (cessation: 5427, continuation: 676). Over both short- and long-term follow-up, aspirin cessation versus continuation was not associated with elevated risk of CVD, MACE, and all-cause mortality (HRs, at 3 and 48 months respectively, were 1.23 and 0.73 for CVD, 1.11 and 0.84 for MACE, and 0.23 and 0.79 for all-cause mortality, p > 0.05), but cessation had a reduced risk of incident major bleeding events (HRs at 3 and 48 months, 0.16 and 0.63, p < 0.05). Similar findings were seen for all outcomes at 6 and 12 months, except for a lowered risk of all-cause mortality in the cessation group at 12 months.

Conclusions
Our findings suggest that deprescribing prophylactic aspirin might be safe in healthy older adults with no known CVD.
Development and validation of a patient-level model to predict dementia across a network of observational databases
Authors: John Luis H. , Fridgeirsson Egill A. , Kors Jan A. , Reps Jenna M. , Williams Ross D. , Ryan Patrick B. , Rijnbeek Peter R. 
Published: July 2024

Abstract
Background
A prediction model can be a useful tool to quantify the risk of a patient developing dementia in the next years and take risk-factor-targeted intervention. Numerous dementia prediction models have been developed, but few have been externally validated, likely limiting their clinical uptake. In our previous work, we had limited success in externally validating some of these existing models due to inadequate reporting. As a result, we are compelled to develop and externally validate novel models to predict dementia in the general population across a network of observational databases. We assess regularization methods to obtain parsimonious models that are of lower complexity and easier to implement.

Methods
Logistic regression models were developed across a network of five observational databases with electronic health records (EHRs) and claims data to predict 5-year dementia risk in persons aged 55–84. The regularization methods L1 and Broken Adaptive Ridge (BAR) as well as three candidate predictor sets to optimize prediction performance were assessed. The predictor sets include a baseline set using only age and sex, a full set including all available candidate predictors, and a phenotype set which includes a limited number of clinically relevant predictors.

Results
BAR can be used for variable selection, outperforming L1 when a parsimonious model is desired. Adding candidate predictors for disease diagnosis and drug exposure generally improves the performance of baseline models using only age and sex. While a model trained on German EHR data saw an increase in AUROC from 0.74 to 0.83 with additional predictors, a model trained on US EHR data showed only minimal improvement from 0.79 to 0.81 AUROC. Nevertheless, the latter model developed using BAR regularization on the clinically relevant predictor set was ultimately chosen as best performing model as it demonstrated more consistent external validation performance and improved calibration.

Conclusions
We developed and externally validated patient-level models to predict dementia. Our results show that although dementia prediction is highly driven by demographic age, adding predictors based on condition diagnoses and drug exposures further improves prediction performance. BAR regularization outperforms L1 regularization to yield the most parsimonious yet still well-performing prediction model for dementia.
Smoking reduction using an electronic nicotine delivery system (ENDS) with nicotine delivery similar to combustible cigarettes
Authors: Rose Jed E. , Behm Frederique M. , Cohen Gal , Willette Perry N. , Botts Tanaia L. , Botts David R. 
Published: July 2024

Abstract
Background
Electronic nicotine delivery systems (ENDS) offer a promising approach to tobacco harm reduction, but many people use both ENDS and combustible cigarettes (“dual use”), which undermines potential risk reduction. To explore the role of ENDS nicotine delivery in promoting switching to ENDS, we conducted a study in which people who smoked cigarettes were offered an ENDS that had previously been shown to replicate the rapid nicotine pharmacokinetics of combustible cigarettes (BIDI® Stick).

Methods
Twenty-five cigarette smoking adults, not seeking smoking cessation treatment, but open to using ENDS as a cigarette substitute, were provided with a 12-week supply of BIDI® Stick in tobacco or menthol flavors, during a study that included seven biweekly sessions and a 6-month follow-up. Daily diaries assessed ENDS and cigarette use, and exhaled carbon monoxide (eCO) served as an objective marker of smoke intake. Subjective ratings were collected to assess the rewarding properties of ENDS and combustible cigarettes, and indices of nicotine dependence.

Results
Over 12 weeks, ENDS use increased to an average of 15.8 occasions per day (SD = 20.2) and self-reported cigarette consumption decreased by 82% from 16.7 cigarettes/day (SD = 6.0) at baseline to 3.0 cigarettes/day (SD = 4.1) at week 12. The eCO level decreased by 27% from an average of 20.0 ppm (SD = 9.8) at baseline to 14.5 ppm (SD = 9.9) at week 12. Four of 25 participants completely switched to ENDS and were smoking abstinent during weeks 9–12. At 6 months one participant was confirmed to be abstinent. Ratings of subjective reward for the ENDS were very similar to those of participants’ usual brands of cigarettes. Dependence level was lower for the ENDS than for combustible cigarettes.

Conclusions
In this study, the ENDS effectively replicated the subjective rewarding effects of participants’ usual brands of cigarettes and led to a substantial reduction in reported cigarettes/day. Exhaled CO showed less of a decrease, possibly due to compensatory smoking behavior and/or the timing of eCO measurements that might not have reflected smoke intake throughout the day. The relatively low rate of sustained smoking abstinence at 6 months suggests that additional approaches continue to be needed for achieving higher rates of complete switching.

Trial registration
ClinicalTrials.gov identifier NCT05855343.
Effect of frozen storage conditions on antithrombin protein C and protein S activity assay stability
Authors: Feng Houmei , Song Danyu , Xu Qiang , Cai Xiaohui , Liu Jianru , Zhang Yang , Zhou Zhou 
Published: July 2024

Abstract
Background
Inherited antithrombin, protein C, and protein S deficiency increase the risk of venous thromboembolism. The presence of defects can be identified by clinical laboratory assays. In most Chinese clinical laboratories, the screening tests for antithrombin, protein C, and protein S deficiency are their activity assays. Ensuring appropriate pre-analytical storage conditions for activity tests is essential. This study aimed to assess the effects of storage conditions on antithrombin, protein C, and protein S activity in frozen plasma.

Methods
We collected the remaining plasma of 29 patients. The baseline of antithrombin, protein C, and protein S activity values were tested within 4 h. Then, each sample was sub-packaged into 4 EP tubes, and was stored at -20 °C for 3 days, -20 °C for 7 days, -80 °C for 3 days, and − 80 °C for 7 days, respectively. After thawing, samples were tested by two systems.

Results
The percentage deviation of antithrombin and protein C activity assay was<10% compared with the initial values. Protein S activity showed a significant reduction in frozen plasma, with a deviation > 10%. Some samples, initially within the normal range, were classified as abnormal after freezing storage.

Conclusions
Our study indicated that antithrombin and protein C remain stable when stored at -20 °C or -80 °C in a week. We argued that Protein S activity is not stable in frozen plasma. The use of frozen-thawed plasma for PS activity assay may result in overdiagnosis of protein S deficiency.
Customized passive-dynamic ankle–foot orthoses can improve walking economy and speed for many individuals post-stroke
Authors: Skigen Jacob T. , Koller Corey A. , Nigro Luke , Reisman Darcy S. , McKee Zahra , Pinhey Shay R. , Henderson Adrienne , Wilken Jason M. , Arch Elisa S. 
Published: July 2024

Abstract
Background
Passive-dynamic ankle–foot orthoses (PD-AFOs) are often prescribed to address plantar flexor weakness during gait, which is commonly observed after stroke. However, limited evidence is available to inform the prescription guidelines of PD-AFO bending stiffness. This study assessed the extent to which PD-AFOs customized to match an individual’s level of plantar flexor weakness influence walking function, as compared to No AFO and their standard of care (SOC) AFO.

Methods
Mechanical cost-of-transport, self-selected walking speed, and key biomechanical variables were measured while individuals greater than six months post-stroke walked with No AFO, with their SOC AFO, and with a stiffness-customized PD-AFO. Outcomes were compared across these conditions using a repeated measures ANOVA or Friedman test (depending on normality) for group-level analysis and simulation modeling analysis for individual-level analysis.

Results
Twenty participants completed study activities. Mechanical cost-of-transport and self-selected walking speed improved with the stiffness-customized PD-AFOs compared to No AFO and SOC AFO. However, this did not result in a consistent improvement in other biomechanical variables toward typical values. In line with the heterogeneous nature of the post-stroke population, the response to the PD-AFO was highly variable.

Conclusions
Stiffness-customized PD-AFOs can improve the mechanical cost-of-transport and self-selected walking speed in many individuals post-stroke, as compared to No AFO and participants’ standard of care AFO. This work provides initial efficacy data for stiffness-customized PD-AFOs in individuals post-stroke and lays the foundation for future studies to enable consistently effective prescription of PD-AFOs for patients post-stroke in clinical practice.
Trial Registration: NCT04619043.
Harnessing extracellular vesicles using liquid biopsy for cancer diagnosis and monitoring: highlights from AACR Annual Meeting 2024
Authors: Su Xinming , Shan Zeping , Duan Shiwei 
Published: July 2024

AbstractLiquid biopsy, an advanced technology for analyzing body fluid samples, is gaining traction in cancer diagnostics and monitoring. Blood-based liquid biopsy, particularly focusing on cell-free DNAs (cf-DNAs), circulating tumor cells (CTCs), and extracellular vesicles (EVs), has garnered significant attention. EVs stand out for their potential in tumor diagnosis, prognosis prediction, and treatment response assessment, owing to their stable molecular cargo and clear extraction process. At the recent American Association for Cancer Research (AACR) Annual Meeting 2024, groundbreaking EVs-based liquid biopsy studies showcased promising strides in early detection and diagnosis of various cancers, including breast cancer (BC), high-grade serous ovarian cancer (HGSOC), pancreatic ductal adenocarcinoma (PDAC), colorectal cancer (CRC), colon adenocarcinoma (COAD), head and neck cancer (HNC), neuroblastoma, and retinoblastoma (RB). Despite these advancements, challenges persist in translating EVs biomarkers into clinical practice. Overcoming these challenges promises to propel EVs-based liquid biopsy into a new era of personalized precision medicine, revolutionizing cancer detection, monitoring, and treatment.
Correlation of high-resolution computed tomography and immunological bronchoalveolar lavage in interstitial lung disease at the onset of inflammatory rheumatic diseases: implications for diagnosis and therapeutic strategies
Authors: Hoffmann Tobias , Teichgräber Ulf , Förster Martin , Oelzner Peter , Kroegel Claus , Renz Diane , Weise Tobias , Böttcher Joachim , Schulze P. Christian , Wolf Gunter , Franz Marcus , Pfeil Alexander 
Published: July 2024

Abstract
Objectives
Inflammatory rheumatic diseases (IRD) are often associated with interstitial lung disease (ILD). The aim of the present study was to establish a correlation between the findings on HRCT and the immunological bronchoalveolar lavage (BAL).

Methods
The study included 74 patients with newly diagnosed IRD and evidence of ILD on HRCT with the following pattern: ground-glass opacities (GGO), non-specific interstitial pneumonia (NSIP) and usual interstitial pneumonia (UIP). Patients with other HRCT pattern were excluded. No patient received any immunosuppressive therapy. In addition to HRCT, immunological BAL was performed and the American Thoracic Society clinical practice guideline were used to define BAL patterns (lymphocytic cellular pattern, neutrophilic cellular pattern, eosinophilic cellular pattern and unspecified pattern).

Results
The main HRCT patterns were NSIP (47.3%), GGO (33.8%), and UIP (18.9%). BAL patterns showed the following distribution: 41.9% lymphocytic cellular pattern, 23.0% neutrophilic cellular pattern, 18.9% eosinophilic cellular pattern, and 16.2% unspecific cellular pattern. Placing these data in the context of the HRCT findings, the lymphocytic cellular BAL pattern (48%) was most commonly BAL pattern associated with GGO pattern in HRCT, whereas neutrophilic and lymphocytic cellular BAL patterns were the dominant feature in NSIP and UIP.

Conclusion
In patients with new-onset IRD and ILD, inflammatory pulmonary changes are predominate, reflected by GGO on HRCT and a mainly lymphocytic cell profile in the immunological BAL. In NSIP or UIP on HRCT, the percentages of lymphocytes and neutrophils were higher in BAL fluid, representing a fibrotic component in addition to the inflammation. Consequently, patients with evidence of GGO on HRCT should primarily be treated with anti-inflammatory/immunosuppressive therapy, whereas in patients with NSIP and UIP a combination of anti-inflammatory and anti-fibrotic agents would be the appropriate treatment.
Effect and mechanism of T lymphocytes on human induced pluripotent stem cell-derived cardiomyocytes via Proteomics
Authors: Ye Jin , Xu Sichi , Liu Xiaoqing , Zhang Qiyu , Li Xiao , Zhang Hui , Ma Jie , Leng Ling , Zhang Shuyang 
Published: July 2024

Abstract
Background
Abnormalities in T cell activation play an important role in the pathogenesis of myocarditis, and persistent T cell responses can lead to autoimmunity and chronic cardiac inflammation, as well as even dilated cardiomyopathy. Although previous work has examined the role of T cells in myocarditis in animal models, the specific mechanism for human cardiomyocytes has not been investigated.

Methods
In this study, we constructed the human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) and established the T cell-mediated cardiac injury model by co-culturing with activated CD4 + T or CD8 + T cells that were isolated from peripheral mononuclear blood to elucidate the pathogenesis of myocardial cell injury caused by inflammation.

Results
By combination of quantitative proteomics with tissue and cell immunofluorescence examination, we established a proteome profile of inflammatory myocardia from hiPSC-CMs with obvious cardiomyocyte injury and increased levels of lactate dehydrogenase content, creatine kinase isoenzyme MB and cardiac troponin. A series of molecular dysfunctions of hiPSC-CMs was observed and indicated that CD4 + cells could produce direct cardiomyocyte injury by activating the NOD-like receptor signals pathway.

Conclusions
The data presented in our study established a proteome map of inflammatory myocardial based on hiPSC-CMs injury model. These results can provide guidance in the discovery of improved clinical treatments for myocarditis.