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Hoy — Diciembre 16th 2025Tus fuentes RSS

Importance of training and education for nurses delivering stroke care

Por: McLoughlin · A. · Kidd · L.

Commentary on: Zhao et al. The impact of education/training on nurses caring for patients with stroke: a scoping review. BMC Nurs 23:90

Implications for practice and research

  • Nurses working in clinical stroke care could benefit from leadership and management strategies that encourage empowerment and time and space to reflect on current evidence, training and practice.

  • Comprehensive evaluation strategies are needed to assess the impact and effectiveness of empowerment-based stroke education and training on patient outcomes.

  • Context

    Stroke nursing is widely recognised for its significant role across the whole multidisciplinary stroke care pathway.1 Ensuring that stroke nurses are equipped with the latest stroke specialist knowledge and skills is fundamental in providing high-quality and safe stroke care.1 2 However, in spite of the provision of nationally-recognised, quality-assured training and education programmes, for example, the Stroke-Specific Education Framework in the...

    Qualitative study with postnatal women in Turkey provides perspectives on the practice of postnatal debriefing as a desired practice that promotes processing of birth experiences and provides benefits for health and well-being

    Por: Sperlich · M.

    Commentary on: Demerci AD, Oruc M, Kabukcuoglu K. "I need to make sense of my birth experience": A descriptive qualitative study of postnatal women’s opinions, and expectations about postnatal debriefing. Midwifery 2024;131;103955. https://doi.org/10.1016/j.midw.2024.103955

    Implications for practice and research

  • Healthcare professionals should prioritise and establish routines for postnatal debriefing, with a goal of averting problematic parenting adaptation and development of post-traumatic stress symptoms.

  • More research is needed to determine the ideal format (structured or unstructured) and to consider whether either or both formats might influence subsequent reproductive decision making.

  • Context

    Previous investigations into postnatal debriefing have had mixed results regarding its effectiveness and have not established best practices for its usage.1 Shortcomings of prior studies included the heterogeneity of types of debriefing delivery, which varied across contexts (format, setting, provider type), and varying inclusion and exclusion criteria.1 Importantly,...

    Midwife-led care for the induction of labour with a Foley catheter and subsequent amniotomy is associated with equivalent maternal outcomes but worse neonatal outcomes

    Por: Phillipi · M. · Caughey · A. B.

    Commentary on: Velthuijs ELM, Jacod BC, Videler-Sinke L, et al. Outcome of induction of labour at 41 weeks with Foley catheter in midwifery-led care. Midwifery 2024 Aug;135:104026. doi: 10.1016/j.midw.2024.104026. Epub 9 May 2024. PMID: 38781793.

    Implications for practice and research

  • Performing induction of labour with a Foley catheter and subsequent amniotomy in midwife-led care is associated with worse neonatal outcomes and equivalent maternal outcomes compared with consultant-led care.

  • Future research should further explore the cost-effectiveness, feasibility and neonatal outcomes associated with midwife-led care in different patient populations.

  • Context

    Although care for low-risk births in the Netherlands is primarily conducted by midwives, the use of consultant-led care has been increasing for a variety of indications, leading to a high patient burden for consultants. The induction of labour (IOL) of late-term pregnancies has historically been an indication for consultant-led care. This study by Velthuijs et...

    Plastic exposure may be associated with the deposition of microplastics in reproductive tissues and adverse clinical outcomes

    Por: Phillipi · M. · Caughey · A. B.

    Commentary on: Hunt K, Davies A, Fraser A, Burden C, Howell A, Buckley K, Harding S, Bakhbakhi D. Exposure to microplastics and human reproductive outcomes: A systematic review. BJOG. 2024 Apr;131(5):675-683. doi: 10.1111/1471-0528.17756. Epub 2024 Jan 29. PMID: 38287142.

    Implications for practice and research

  • Plastic exposure may be associated with increased deposition of microplastics in reproductive tissues, and the quantity of microplastics in these tissues may lead to adverse clinical outcomes.

  • Future research should aim to provide high-quality, generalisable evidence to further demonstrate the impact of plastic exposure and microplastics on reproductive outcomes in humans.

  • Context

    As a result of the mass scale of production of plastics since the 1950s, microplastics, defined as particles 1 Microplastics have been linked to reproductive toxicity in both cell culture...

    Navigating cardiac rehabilitation in the virtual era: patient perspectives and program adaptations in the course of COVID-19

    Por: Su · J. J. · Batalik · L.

    Commentary on: Vanzella LM, Cotie LM, Flores-Hukom M, Marzolini S, Konidis R, Ghisi GLM. Patients' Perceptions of Hybrid and Virtual-Only Care Models During the Cardiac Rehabilitation Patient Journey: A Qualitative Study. J Cardiovasc Nurs. Published online January 5, 2024.

    Implications for practice and research

  • The use of theoretical models integrating well-recognised techniques (eg, goal setting, action planning, telemonitoring, individual assessment/tailoring) to guide virtual cardiac rehabilitation (CR) is essential.

  • Apart from teleconferencing, using advanced wearable devices, analytics and artificial intelligence techniques may improve personalised exercise and educational content capacity of future virtual CR studies.

  • Context

    Cardiac rehabilitation (CR) is a recommended treatment for patients with cardiovascular disease (CVDs), given the rising number of cardiac incidents due to ageing population and modern lifestyles.1 To improve accessibility and follow-up support for optimal health, e-platforms are increasingly being used. Virtual CR uses technology-based methods such...

    Key role of specialist mental health clinicians in improving emergency department self-harm care

    Por: Steeg · S. · Quinlivan · L. M.

    Commentary on: Veresova M, Michail M, Richards H, et al. Emergency department staff experiences of working with people who self-harm: A qualitative examination of barriers to optimal care. Int J Mental Health Nurs. 2024. doi: 10.1111/inm.13353

    Implications for practice and research

  • Support from specialist mental health clinicians is a key mechanism for improving self-harm care among emergency department (ED) staff.

  • Findings underpin the need for compassion and empathy when treating people presenting in distress, especially those who present multiple times.

  • Future research should focus on strategies for improving implementation of self-harm clinical guidelines in EDs.

  • Context

    Emergency departments (EDs) have a crucial role in suicide prevention. Around 18% of people who died by suicide presented to ED in the month prior to death, commonly for self-harm.1 A hospital presentation for self-harm is one of the strongest risk factors for suicide;...

    War-exposed adolescents screening positive for mental health symptoms indicate a need for diagnostic evaluation to inform care

    Por: Pollio · E. W. · North · C. S.

    Commentary on: Goto R, Pinchuk I, Kolodezhny O, et al (2024). Mental health of adolescents exposed to the war in Ukraine. JAMA Pediatrics, 178 (5), 480-488. doi: 10.1001/jamapediatrics.2024.0295.

    Implications for practice and research

  • Individuals screening positive require diagnostic evaluation to inform psychiatric treatment decisions and mental health interventions.

  • Future research should expand these findings with objective measures of war/trauma exposure and full diagnostic assessment.

  • Context

    The study by Goto et al screened adolescents across Ukraine for mental health consequences of war.1 These adolescents had a range of exposures to the Russian invasion beginning in early 2022 and completed self-report symptom questionnaires. Prior studies cited in the article suggested that children and adolescents may be especially vulnerable to war-related mental health problems. Given the difficulties of conducting research during ongoing hostilities, this study’s efforts to collect and systematically evaluate a large research...

    Prevention of Infections in Cardiac Surgery (PICS)-Prevena Study – A pilot/vanguard factorial cluster cross-over RCT

    by Thomas C. Scheier, Richard Whitlock, Mark Loeb, Philip James Devereaux, Andre Lamy, Michael McGillion, MacKenzie Quantz, Ingrid Copland, Shun-Fu Lee, Dominik Mertz

    Sternal surgical site infections after cardiac surgery can lead to significant morbidity, mortality, and cost. The effects of negative pressure wound management and adding vancomycin as perioperative antimicrobial prophylaxis are unknown. The PICS-PREVENA pilot/vanguard trial, a 2x2 factorial, open label, cluster-randomized crossover trial with 4 periods, was conducted at two major cardiac surgery hospitals in Ontario, Canada. Sites were randomized to one of eight sequences of the four study arms (Cefazolin or Cefazolin + Vancomycin (not analyzed) and standard wound dressing or a negative pressure 3M Prevena incision management system (Prevena). Only diabetic or obese patients were eligible for the latter comparison. This trial investigated feasability including adherence to protocol of each intervention (goal: > 90% each) and loss to follow-up (goal: 

    A psycho-ecological signal recognition framework for user behavior prediction on digital media platforms

    by Lei Xiong, Ke Li, Wendy Siuyi Wong

    Background

    Digital media usage has become an integral part of daily life, but prolonged or emotionally driven engagement—especially during late-night hours—may lead to concerns about behavioral and mental health. Existing predictive systems fail to account for the nuanced interplay between users’ internal psychological states and their surrounding ecological contexts.

    Objective

    This study aims to develop a psychologically and ecologically informed behavior prediction model to identify high-risk patterns of digital media usage and support early-stage intervention strategies.

    Methods

    We propose a Dual-Channel Cross-Attention Network (DCCAN) architecture composed of three layers: signal identification (for psychological and ecological encoding), interaction modeling (via cross-modal attention), and behavior prediction. The model was trained and tested on a dataset of 9,782 users and 51,264 behavior sequences, annotated with labels for immersive usage, late-night activity, and susceptibility to health misinformation.

    Results

    The DCCAN model achieved superior performance across all three tasks, especially in immersive usage prediction (F1-score: 0.891, AUC: 0.913), outperforming LSTM, GRU, and XGBoost baselines. Ablation studies confirmed the critical role of both psychological and ecological signals, as well as the effectiveness of the cross-attention mechanism.

    Conclusions

    Incorporating psychological and ecological modalities through attention-based fusion yields interpretable and accurate predictions for digital risk behaviors. This framework shows promise for scalable, real-time behavioral health monitoring and adaptive content moderation on media platforms.

    <i>Mycobacterium tuberculosis</i> complex lineages and drug resistance patterns among tuberculosis patients with or without diabetes mellitus in southern Ghana

    by Emelia Konadu Danso, Prince Asare, Amanda Yaa Tetteh, Phillip Tetteh, Augustine Asare Boadu, Ivy Naa Koshie Lamptey, Augustina Angelina Sylverken, Kwasi Obiri-Danso, Jane Sandra Afriyie-Mensah, Abraham Adjei, Dorothy Yeboah-Manu

    Drug-resistant (DR) tuberculosis (TB) and diabetes mellitus (DM) are intersecting epidemics that complicate management of both diseases and worsen patient outcomes. We conducted a prospective cohort study of 758 GeneXpert-confirmed pulmonary TB patients, of whom 75 had DM. Demographic, clinical, radiographic, and anthropometric data were collected at baseline. Sputum samples were cultured for mycobacterial isolation, and the obtained isolates were characterized for Mycobacterium tuberculosis complex (MTBC) lineage and drug-susceptibility testing using spoligotyping and microplate alamar blue assay. The TB-diabetes (TB-DM) comorbid cohort was older [TB-DM: 53/75 (70.7%) vs. 241/683 (35.3%) aged 41–60 years) (p 

    Biopsychosocial factors associated with symptom severity in the overlap of non-erosive reflux disease and epigastric pain syndrome: A multicenter cross-sectional study

    by Mi Lv, Hui Che, Jiayan Hu, Wenxi Yu, Zhaoxia Liu, Xiaolin Zhou, Binduo Zhou, Jinyi Xie, Fengyun Wang

    Background

    The overlap between non-erosive reflux disease (NERD) and epigastric pain syndrome (EPS, a subtype of functional dyspepsia) is common, yet its associated factors remain poorly defined. We aimed to identify factors associated with symptom severity in NERD-EPS overlap, focusing on psychosocial and somatic factors.

    Methods

    In this multicenter cross-sectional study, 800 patients meeting Rome IV criteria for NERD-EPS overlap were enrolled. Standardized questionnaires assessed gastrointestinal symptoms (GSRS), somatic symptoms (PHQ-15), anxiety/depression (PHQ-4), and sleep quality (SRSS). Multivariable regression models identified factors independently associated with GSRS scores, adjusted for demographics and clinical covariates. Interaction terms were tested to assess whether the association between one factor and GSRS scores varied across different levels of another factor.

    Results

    Of the 800 patients, 67% were female, and the mean age was (44.50 ± 14.43) years. 67% had mild or more sleep problems, and 47% had anxiety or depression. Somatic symptoms (PHQ-15) showed the strongest association with GSRS scores (β = 0.617, P P P = 0.026). Urban residence (β = 0.071) and mixed labor type (β = −0.066) were also independently associated with symptom burden.

    Conclusion

    Somatic symptoms, psychological distress, and sleep disturbances were the factors most strongly associated with symptom severity in NERD-EPS overlap, with additional contributions from younger age, male sex, and urban residence. Our findings advocate for integrated biopsychosocial interventions to alleviate symptom burden in this population.

    A disproportionality analysis of FDA adverse event reporting system (FAERS) events for filgotinib

    by Yinli Shi, Shuang Guan, Sicun Wang, Muzhi Li, Yanan Yu, Jun Liu, Weibin Yang, Zhong Wang

    Background

    Although filgotinib, a selective Janus kinase 1 inhibitor, has been increasingly applied in the treatment of inflammatory diseases, its comprehensive safety profile remains insufficiently characterized. Using data from the FAERS database covering Q1 2014 to Q2 2024, this study attempts to analyze adverse event signals linked to filgotinib and provide guidance for the safe and sensible clinical usage of filgotinib.

    Methods

    From Q1 2014 to Q2 2024, information on adverse drug events (ADEs) associated with filgotinib was gathered. The reporting odds ratio (ROR), proportional reporting ratio (PRR), Bayesian confidence propagation neural network (BCPNN), and multi-item gamma Poisson shrinker (MGPS) were among the signal detection methods that were employed for analysis following data normalization.

    Results

    Filgotinib was shown to be the main suspected medication in ADE reports, exposing 103 preferred terms (PTs) in 17 system organ classes (SOCs). Infections, gastrointestinal disorders, and musculoskeletal and connective tissue disorders were the most commonly reported adverse effects. Additionally, atrial fibrillation, alopecia, elevated serum creatinine, blood creatinine increased, pulmonary embolism, epididymitis, respiratory failure, and osteopenia were identified as potential disproportionate reporting signals for filgotinib, although these were not listed in the official drug label. Notable significant signals included large intestine erosion (ROR 2186.05, 95%CI(ROR): 1015.94–4703.86, PRR 2176.18, 95%CI(PRR): 1014.64–4667.42), mesenteric arterial occlusion (ROR 1832.17, 95%CI(ROR): 897.68–3739.48, PRR 1822.71, 95%CI(PRR): 896.17–3707.20), repetitive strain injury (ROR 1149.27, 95%CI(ROR): 363.16–3637.01, PRR 1147.05, 95%CI(PRR): 363.24–3622.15), oligoarthritis (ROR 755.02, 95%CI(ROR): 310.74–1834.54, PRR 752.59, 95%CI(PRR): 310.60–1823.51), and periostitis (ROR 676.03, 95%CI(ROR): 319.36–1431.06, PRR 672.98, 95%CI(PRR): 318.97–1419.87). The subgroup analysis identified obvious sex and age-specific trends in filgotinib-related adverse reactions, emphasizing a higher risk of renal disorders in females, a preponderance of gastrointestinal events in males, and age-dependent trends involving mesenteric occlusion, increased serum creatinine, and immunoglobulin reduction.

    Conclusion

    While filgotinib demonstrates therapeutic efficacy, it is associated with a range of potential adverse events, underscoring the need for vigilant clinical monitoring. Particular attention should be given to gastrointestinal, cardiovascular, respiratory, and metabolic complications.

    Investigating risk factors of hemorrhagic fever of renal syndrome (HFRS) in Qingdao, Shandong province, China

    by Ying Li, Jing Jia, Runze Lu, Liyan Dong, Lizhu Fang, Litao Sun, Zongyi Zhang, Qing Duan, Lijie Zhang, Kunzheng Lv, Huilai Ma

    Background

    Qingdao, a historically high-risk area for hemorrhagic fever with renal syndrome (HFRS) in China, is undergoing agricultural mechanization and urbanization. However, the specific risk factors for HFRS in this context remain unclear. This study sought to determine the risk factors for HFRS in Qingdao.

    Methods

    Community-based, 1:2 case-control study. Each case was matched with two healthy neighborhood controls based on biological sex, age, and the same neighborhood or village. Univariate and multivariate conditional logistic regression analyses were performed. Furthermore, stratified analyses were performed to explore risk factor heterogeneity between the peak season for Hantaan virus (HTNV) type HFRS (October-January) and other months.

    Results

    93 cases (73.2%, 93/127) reported from January 2022 to September 2023 and 186 controls completed this questionnaire. Farmers accounted for the highest proportion (68.8%, 64/93). In multivariate logistic regression analysis, there were three significant risk factors for HFRS: piles of firewood and/or grain in residential yards (odds ratio [OR]=3.75, 95% CI: 2.14–6.55), mite and/or flea bites (OR=1.83, 95% CI: 1.06–3.18) and contacting with rats and/or their excreta (OR=1.73, 95% CI: 1.09–2.74); three variables represented significant protective factors for HFRS: frequency of sun exposure for quilts and bedding (OR=0.41, 95% CI: 0.19–0.90), rodent control measures at home (OR=0.50, 95% CI: 0.30–0.81) and knowing the main sources of HFRS transmission (OR=0.58, 95% CI: 0.36–0.90). Stratified analysis revealed that the influence of these factors varied by season, with rodent contact and control measures being particularly salient during the HTNV peak season.

    Conclusion

    This study provides the first comprehensive evidence of risk and protective factors for HFRS in Qingdao, highlighting the role of rodent control, promoting comprehensive health education, environmental management, and personal protection. However, the results should be interpreted considering the study’s limitations, including a 73.2% response rate and the potential for recall bias.

    Comparison of outcomes between minimally invasive percutaneous bunnell suture and traditional open modified Kessler technique for acute closed achilles tendon rupture: A single-center cohort study

    by Zihang Zhao, Xiang Zhang, Xi Hou, Zihan Liu, Zhiyong Hou, Lianxin Song, Ruipeng Zhang

    Percutaneous Bunnell repair and open modified Kessler repair remain debated options for acute Achilles tendon rupture (AATR). We retrospectively compared a minimally invasive percutaneous Bunnell technique (Group A) with an open modified Kessler repair (Group B) within a standardized early functional rehabilitation (EFR) protocol at a single center. Fifty-five adults with closed AATR treated between January 2021 and December 2022 were analyzed (Group A, n = 25; Group B, n = 30). Between-group comparisons used Welch t tests for continuous variables and χ² or Fisher exact tests for categorical variables; American Orthopaedic Foot & Ankle Society (AOFAS) and Achilles Tendon Total Rupture Score (ATRS) were assessed at 12 and 24 weeks, with Holm adjustment applied within each scale. Compared with Group B, Group A had shorter operative time (56.6 ± 15.1 vs 68.2 ± 23.2 minutes; mean difference −11.6; 95% CI −22.05 to −1.15; P = 0.030), less intraoperative blood loss (28.4 ± 8.4 vs 74.7 ± 19.4 mL; −46.3; 95% CI −54.22 to −38.38; P 

    Cyclodextrin reduces cholesterol crystal uptake by circulating monocytes in patients undergoing coronary angiography

    by Nikola Lübbering, Alexander Krogmann, Felix Jansen, Eicke Latz, Georg Nickenig, Sebastian Zimmer

    Background

    Atherosclerosis is a chronic inflammatory disease driven by endothelial dysfunction, cholesterol accumulation, and immune activation leading to thrombosis and vascular stenosis. While LDL-lowering therapies are firmly established, targeting the underlying inflammation is still an emerging strategy. Cholesterol crystals (CC) contribute to inflammation by activating the NLRP3 inflammasome in monocytes and promoting disease progression. Cyclodextrin (CD), an FDA-approved drug carrier, has shown atheroprotective effects by enhancing cholesterol metabolism and reducing inflammation in preclinical models. This study investigated whether CC-uptake in human monocytes, a prerequisite for inflammasome activation, is also influenced by CD pretreatment.

    Methods

    Human peripheral mononuclear cells were isolated from whole blood samples provided by 76 patients undergoing coronary angiography at the University Hospital Bonn between November 2017 and February 2018. After separation, peripheral mononuclear cells were stimulated with 2-Hydroxypropyl-γ-Cyclodextrin and CC. CC-uptake by monocytes was analyzed using flow cytometry.

    Results

    CC-uptake by monocytes varied greatly between patients (8–37%), with lower uptake observed in patients with elevated leukocytes (p = 0.0058) and diabetes mellitus (p = 0.0448). CD-pretreatment significantly reduced CC-uptake (20.1% ± 0.8% vs. 15.0% ± 0.6%, p p = 0.0316), requirement for percutaneous coronary intervention (PCI) (p = 0.0030), and elevated leucocyte levels (p = 0.0135) had lower CCΔCD, suggesting a link between systemic inflammation and attenuated CD efficacy.

    Conclusion

    We demonstrated that CD significantly reduced CC-uptake in patients undergoing coronary angiography, which supports its role in inhibiting CC-phagocytosis and promoting cholesterol efflux. Interestingly, patient response to CD varied, with those exhibiting greater systemic inflammation or CAD showing a less pronounced reduction in CC-uptake. Our findings provide insight into the atheroprotective mechanisms of CD and suggest its potential utility in evaluating individual cardiovascular risk and monitoring CD-based therapeutic interventions in humans.

    Optimizing vitamin A supplementation: A comparative cost-effectiveness analysis of routine distribution strategies in northern Côte d’Ivoire

    by Melissa M. Baker, Lyonel Nerolin Doffou Assalé, David Doledec, Romance Dissieka, Ahmenan Claude Liliane Konan, Agnes Helen Epse Assagou Mobio, Koffi Landry Kouadio, Oka René Kouamé, Ama Emilienne Yao, Hubert Zirimwabagabo

    Background

    While recent data on vitamin A deficiency (VAD) prevalence is lacking, the 2004 Côte d’Ivoire Nutrition and Mortality Survey reported that 26.7% of children aged 6–59 months were affected by VAD, and approximately 60% were at risk. Since 2016, the government has transitioned from mass campaigns to routine vitamin A supplementation (VAS) delivery integrated into health services. However, evidence on the cost-effectiveness of the routine distribution approaches is limited. This study evaluated the cost, coverage, and cost-effectiveness of three routine VAS delivery strategies across two health districts in northern Côte d’Ivoire.

    Methods

    A mixed-methods study evaluated three routine VAS delivery strategies – routine-fixed, advanced community-based, and catch-up – across two health districts, Ferkessédougou and Niakaramadougou, in northern Côte d’Ivoire. The quantitative cost data were collected via a structured tool covering six cost categories: planning, procurement, training, social mobilization, distribution, and supervision. VAS coverage was assessed through a post-event coverage survey (PECS) via a two-stage cluster sampling methodology. A cost-effectiveness analysis determined the cost per child supplemented, the cost per DALY averted, and a sensitivity analysis tested the robustness of the findings under different cost scenarios.

    Results

    The total program cost for July-December 2023 was 25.5 million FCFA, with personnel costs comprising over 70% of expenditures. In Ferkessédougou, the routine advanced community-based strategy was the most cost-effective, at 458 FCFA per child in rural areas (versus 596 FCFA for the routine-fixed facility-based approach in the same area). In Niakaramadougou, the December catch-up was more cost-effective in rural areas (606 FCFA per child) than the routine-fixed approach (714 FCFA). Across both districts combined, the routine-fixed strategy averaged roughly 651 FCFA per child supplemented, and the cost per DALY averted ranged from 30,093 FCFA (advanced strategy in Ferkessédougou) to 89,550 FCFA (catch-up Jul 2023 in Niakaramadougou) – all below Côte d’Ivoire’s cost-effectiveness threshold (0.5 x GDP per capita; approximately USD 1,265).

    Conclusion

    All three strategies were cost-effective, though the advanced community-based strategy achieved the best balance of reach and efficiency. Scaling advanced strategies within health system constraints may enhance sustainability and coverage in low-resource settings.

    Study on the release pattern of Zn in soil of ionic rare earth mining areas under different leaching conditions

    by Zhongqun Guo, Qiangqiang Liu, Feiyue Luo, Shaojun Xie, Tianhua Zhou

    The acidic leachate injected during the mining process of ion-type rare earth ores can damage the environmental characteristics of the soil, thereby triggering the activation and release of associated heavy metals. Severe Zn contamination has been found in the environment of ion-type rare earth mining areas, but the activation and release of Zn in the soil during the leaching process have not been fully understood. This study investigated the activation and release patterns and mechanisms of Zn in soil under different leaching agents ((NH4)2SO4, MgSO4, Al2(SO4)3) and varying concentrations of Al2(SO4)3 (1%, 3%, 5%, 7%) using a simulated leaching experimental system. The results show that the activation and release patterns of Zn in the soil vary significantly under the influence of the three leaching agents. During the entire leaching cycle, the peak Zn concentration in the leachate was highest under MgSO4 leaching, while the residual Zn content in the soil under Al2(SO4)3 leaching approached the high-risk environmental threshold. The high-concentration systems (5%, 7%) of Al2(SO4)3 significantly enhanced the activation and release efficiency of Zn in the soil compared to the low-concentration systems (1%, 3%) of Al2(SO4)3. (NH4)2SO4 mainly promotes the activation and release of Zn through ion exchange between NH4+ and Zn2+ and the acidification effect; Al2(SO4)3, on the other hand, dominates the activation and release of Zn by providing a strongly acidic environment and dissolving and damaging the mineral lattice; while MgSO4 not only exchanges ions between Mg2+ and Zn2+, but also alters the soil colloidal structure, facilitating Zn activation and release. The promoting effects of the three leaching agents on the transformation of Zn in soil follow the order of Al2(SO4)3> (NH4)2SO4 > MgSO4, with the environmental risk assessment index (RAC) being highest after Al2(SO4)3 leaching, indicating the greatest potential environmental risk. Compared to the other three concentrations (1%, 5%, 7%) of Al₂(SO4)3, the 3% concentration of Al2(SO4)3 had the most significant promoting effect on the transformation of Zn in soil. This study provides a theoretical basis for optimizing the green mining process of ion-type rare earth ores and preventing heavy metal pollution, and offers scientific support for revealing pollution mechanisms and formulating remediation and risk assessment strategies.

    Is price associated with the quality of medicines? Evidence from active pharmaceutical ingredient testing in Nigeria

    by Marie Chantel Montás, Chimezie Anyakora, Elisa Maria Maffioli

    Determining the quality of medicines remains a challenge, particularly in low- and middle-income countries, where regulatory oversight and enforcement vary, and resources and infrastructure for quality testing are often constrained. In these settings, price is often used as a proxy for higher-quality medicines, yet empirical evidence supporting this assumption remains scarce. We conducted a mystery shopper survey in over 1,200 retail pharmacies across urban and rural areas in the six geopolitical zones of Nigeria, purchasing one drug sample from a list of twenty branded medicines, including analgesics, antimalarials, antibiotics, antihypertensives, and multivitamins. A sub-sample of the purchased medicines (N = 246) was tested for quality, defined as passing a laboratory test using High-Performance Liquid Chromatography (HPLC) to measure the Active Pharmaceutical Ingredient (API) content of each medicine. Using probit regressions, we examined the extent to which price is associated with quality, controlling for observable pharmacy and drug sample characteristics. A 1% increase in price is associated with a 16.7 percentage point increase in the probability of passing the laboratory test, conditional on other factors. Receiver Operating Characteristic (ROC) analysis shows strong out-of-sample classification performance, with an Area Under the Curve (AUC) of 0.82 for the price-only model, indicating that price alone explains much of the variation in quality. Other results show that medicines organized by brand and displaying visible expiration dates may signal higher quality, while the presence of other observable characteristics (e.g., packaging, storage, display) shows more counterintuitive associations with drug quality in this context. Stratified analyses show that the association between price and quality is particularly strong for analgesics and antibiotics. These findings suggest that price appears to be a reliable signal of medicine quality, whereas other characteristics of pharmacies and drug samples provide weaker and less consistent indicators. This underscores the need for stronger regulatory oversight, greater market transparency, and targeted consumer education to promote safer access to quality medicines.

    Optimising time-limited trials in acute respiratory failure: a multicentre focused ethnography protocol

    Por: Kruser · J. M. · Wiegmann · D. A. · Nadig · N. R. · Secunda · K. E. · Hanlon · B. M. · Moy · J. X. · Ahmad · A. · Campbell · E. G. · Donnelly · H. K. · Martinez · F. J. · Polley · M. · Orhan · C. · Korth · E. · Stalter · L. N. · Rowe · T. J. · Wu · A. L. · Viglianti · E. M. · Eisinger · E
    Introduction

    The ‘time-limited trial’ for patients with critical illness is a collaborative plan made by clinicians, patients and families to use life-sustaining therapies for a defined duration. After this period, the patient’s response to therapy informs decisions about continuing recovery-focused care or transitioning to comfort-focused care. The promise of time-limited trials to help navigate the uncertain limits and benefits of life-sustaining therapies has been extensively discussed in the palliative and critical care literature, leading to their dissemination into clinical practice. However, we have little evidence to guide clinicians in how to conduct time-limited trials, leading to substantial variation in how and why they are currently used. The overall purpose of this study is to characterise the features of an optimal time-limited trial through a rich understanding of how they are currently shaping critical care delivery.

    Methods and analysis

    We are conducting an observational, multicentre, focused ethnography of time-limited trials in patients with acute respiratory failure receiving invasive mechanical ventilation in six intensive care units (ICUs) within five hospitals across the US. Study participants include patients, their surrogate decision makers and ICU clinicians. We are pursuing two complementary analyses of this rich data set using the open-ended, inductive approach of constructivist grounded theory and, in parallel, the structured, deductive methods of systems engineering. This cross-disciplinary, tailored approach intentionally preserves the tension between time-limited trials’ conceptual formulation and their heterogeneous, real-world use.

    Ethics and dissemination

    This study has been reviewed and approved by the University of Wisconsin Institutional Review Board (IRB) as the single IRB (ID: 2022-1681; initial approval date 23 January 2023). Our findings will be disseminated through peer-reviewed publication, conference presentations, and summaries for the public.

    Trial registration number

    NCT06042621.

    Longitudinal analysis of an actor-partner interdependence model of recurrent fear and depressive symptoms in elderly patients and caregivers after postoperative adjacent vertebral refracture: a prospective longitudinal study in China

    Por: Du · P. · Chen · Y. · Zhong · X. · Li · R.
    Objective

    This study aims to examine the longitudinal relationship between fear of disease recurrence and depressive symptoms in elderly patients who have experienced postoperative adjacent vertebral refractures, as well as in their spouses, using the actor-partner interdependence model (APIM) to assess both individual and mutual psychological influences.

    Design

    A prospective longitudinal study in China.

    Participants

    A total of 230 osteoporotic vertebral compression fractures (OVCF) and their spouses were selected by convenience sampling method.

    Methods

    Simplified fear disease Progression Scale and 9-item Patient Health Questionnaire were used at admission (T1), before discharge (T2) and 1 month after discharge (T3), respectively. Equivalence test and cross-lagged analysis of APIM were used for statistical examination.

    Results

    A total of 224 valid questionnaires were collected in this study, yielding an effective recovery rate of 97.31%. Across the measurement stages, both patients and their spouses exhibited a decreasing trend in scores for fear of disease recurrence and depressive symptoms. The subjective effect analysis revealed that, in elderly patients with postoperative adjacent vertebral refracture, fear of disease recurrence significantly and positively predicted depressive symptoms at the subsequent stage (T1->T2: β=0.18, T2->T3: β=0.17, pT2: β=0.16, T2->T3: β=0.17, pT2: β=0.21, T2->T3: β=0.20, pT2: β=0.20, pT3: β=0.18, pT2: β=0.21, T2->T3: β=0.20, pT2: β=0.17, T2->T3: β=0.16, all p

    Conclusions

    It is recommended that medical staff prioritise the assessment and management of fear of disease recurrence and depressive symptoms in elderly patients with OVCF and their spouses, and strategically leverage the mutual influence between them to minimise depressive symptom levels as much as possible.

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