FreshRSS

🔒
❌ Acerca de FreshRSS
Hay nuevos artículos disponibles. Pincha para refrescar la página.
Ayer — Octubre 2nd 2025Tus fuentes RSS

Assessing the Effectiveness of Interventions Implemented by Nurses to Reduce Medication Administration Errors in Hospitalised Acute Adult Patient Settings: Systematic Review and Meta‐Analysis

ABSTRACT

Background

Medication administration errors are high-risk patient safety issues that could potentially cause harm to patients, thereby delaying recovery and increasing length of hospital stay with additional healthcare costs. Nurses are pivotal to the medication administration process and are considered to be in the position to recognize and prevent these errors. However, the effectiveness of interventions implemented by nurses to reduce medication administration errors in acute hospital settings is less reported.

Aim

To identify and quantify the effectiveness of interventions by nurses in reducing medication administration errors in adults' inpatient acute hospital.

Methods

A systematic review and meta-analysis was conducted up to 03/24. Six databases were searched. Study methodology quality assessment was conducted using the Joanna Briggs Institute (JBI) critical appraisal tools, and data extraction was conducted. Meta-analysis was performed to combine effect sizes from the studies, and synthesis without meta-analysis was adopted for studies that were not included in the meta-analysis to aggregate and re-examine results from studies.

Results

Searches identified 878 articles with 26 studies meeting the inclusion criteria. Five types of interventions were identified: (1) educational program, (2) workflow smart technologies, (3) protocolised improvement strategy, (4) low resource ward-based interventions, and (5) electronic medication management. The overall results from 14 studies included in meta-analysis showed interventions implemented by nurses are effective in reducing medication administration errors (Z = 2.15 (p = 0.03); odds ratio = 95% CI 0.70 [0.51, 0.97], I 2 = 94%). Sub-group analysis showed workflow smart technologies to be the most effective intervention compared to usual care. Findings demonstrate that nurse-led interventions can significantly reduce medication administration errors compared to usual care. The effectiveness of individual interventions varied, suggesting a bundle approach may be more beneficial. This provides valuable insights for clinical practice, emphasizing the importance of tailored, evidence-based approaches to improving medication safety.

Reporting Method

PRISMA guided the review and JBI critical appraisal tools were used for quality appraisal of included studies.

Confidential Conversations in Palliative Care: An Ethnographic Exploration of Trust and Interpersonal Relationship Between Nurse and Patient

ABSTRACT

Aim

To explore aspects of interpersonal relationships in palliative care nursing, focusing on confidential conversations between patients and registered nurses (RN).

Design

A qualitative study employing focused ethnography.

Methods

Data were collected through unstructured participant observations, field notes and interviews with patients and RN in specialist palliative care. Data were analysed using reflective thematic analysis.

Findings

Confidential conversations in palliative care are founded on trust that is fragile and develops dynamically through consistent interactions. Small talk, presence and silence are essential for initiating and maintaining trust and the interpersonal relationship. The environment, patient condition and RN emotional presence and competence shape these conversations. As the relationship evolves, conversations adapt to the patient's changing needs. Missed signals or interruptions can disrupt flow, but the potential for repair remains, allowing for restoration and strengthening of trust and connection.

Conclusion

Confidential conversations in palliative care are grounded in fragile, dynamic trust, necessitating ongoing presence, sensitivity and adaptability from RN. To support these interactions, healthcare environments must prioritise privacy, relational continuity and communication training. Future research should investigate how organisational structures and clinical settings influence confidential conversations.

Implications for the Profession and/or Patient Care

Healthcare environments should facilitate confidential conversations by ensuring relational continuity and minimising distractions. Communication training that emphasises presence and management of silence can strengthen nurse–patient relationships, enhancing patient care and emotional support.

Impact

This study explores key aspects of confidential conversations in palliative care, emphasising trust and emotional sensitivity. It addresses a research gap in palliative care using rare observational methods to deepen understanding of nursing relational aspects. The findings offer practical guidance for enhancing communication and relational skills, informing training and policy development and ultimately, improving emotional support and care.

Reporting Method

Findings are reported in accordance with the Consolidated Criteria for Reporting Qualitative Research guidelines.

Patient or Public Contribution

This study did not involve patient or public participation in its design, conduct or reporting.

Professional Self‐Realisation of Diabetes Nurse Practitioners: A Descriptive Study Using Quantitative and Qualitative Data

ABSTRACT

Introduction

To examine the personal characteristics, promoting factors and organisational barriers to the professional realisation of diabetes nurse practitioners in Israel.

Design

A descriptive study using quantitative and qualitative data.

Methods

The participants self-completed an electronic questionnaire, which included questions on demographic and professional characteristics and a self-realisation questionnaire constructed by the authors. Researcher-led focus groups were conducted, guided by a semi-structured guide. The discussions were recorded, transcribed and analysed by qualitative methods.

Results

Forty-one diabetes nurse practitioners (median age 50 years, 98% females) participated in the study. On average, the participants reported a relatively high self-realisation of their professional role, especially those who have been working in this role for many years. While some of them work independently and are supported by their organisation, their managers and other healthcare team members, specifically physicians, many feel that there are barriers to the full implementation of the role and achieving professional realisation. These include multitasking challenges and insufficient remuneration. Self-realisation was viewed by the participants as an opportunity to provide excellent care to patients as well as being professional beyond caring for patients. They wanted to expand their knowledge as well as guide and teach. Furthermore, they also associated self-realisation with the autonomy to carry out procedures and make decisions independently of physicians. Internal motivation was perceived as an important factor for personal self-realisation, which stems from personal creativity, aspiration for excellence, a subjective sense of freedom, self-guidance, desire for self-development and aspiration for personal growth at the highest levels.

Conclusion

Recognition and fostering of diabetes nurse practitioners' role contribute to nurses' self-realisation and professional growth.

Implications for the Profession

Personal and organisational factors should be aligned to support diabetes nurse practitioners in delivering high-quality care to patients with diabetes.

Reporting Method

COREQ (COnsolidated criteria for REporting Qualitative research).

Patient or Public Contribution

No patient or public contribution.

Investigating Healthcare Educators' Interprofessional Socialisation Following an Interprofessional Simulation Facilitator Training Programme: A Mixed Methods Study

ABSTRACT

Aim

Interprofessional socialisation can contribute to collaborative patient care. Although there is research regarding interprofessional socialisation of healthcare students and frontline staff, there is limited literature regarding healthcare educators in practice settings. Our aim was to examine interprofessional socialisation of healthcare educators in the practice setting following an interprofessional simulation facilitator training programme.

Design

Explanatory sequential mixed methods study.

Methods

Quantitative provincial simulation programme evaluation data from 2022 and 2023 (n = 87) were analysed and used to inform qualitative interviews (n = 17). Qualitative and quantitative data were integrated following independent analysis.

Results

There was a statistically significant increase in attitudes toward interprofessional socialisation following the simulation facilitator training programme. Qualitative findings revealed themes regarding interprofessional socialisation: (a) benefits gained through interprofessional socialisation, (b) interprofessional, uniprofessional or both, (c) facilitators to interprofessional socialisation, (d) barriers to interprofessional socialisation and (e) opportunities to strengthen interprofessional socialisation.

Conclusion

Despite positive views of interprofessional socialisation, socialisation behaviours may not be consistent in a variety of contexts. Interprofessional education may increase interprofessional socialisation among educators.

Implications for the Profession

It is important to provide interprofessional socialisation opportunities for educators to promote more interprofessional education initiatives.

Impact

The findings of this study provided insights into how to foster interprofessional socialisation in existing structures and how new pathways might be built to connect educators.

Reporting Method

This study is reported in congruence with the Journal Article Reporting Standards—Mixed Methods, Quantitative, and Qualitative Standards provided on the Equator Network.

Public Contribution

Members of the provincial simulation team were consulted regarding study design and data collection to optimise participation.

The Symptoms and Impacts Experienced by Healthcare Professionals as Second Victims After a Safety Incident: A Scoping Review

ABSTRACT

Aim

This study aimed to describe the types of psychological and physical symptoms experienced by healthcare professionals who became second victims after a patient safety incident and the impact of the incident on their social and professional lives.

Design

Scoping review.

Methods

JBI methodology for scoping reviews and PRISMA-ScR for reporting were followed.

Data Sources

The search was conducted on June 13, 2024, using the CINAHL (EBSCO), Scopus, PubMed (Medline), Medic and PsycInfo (EBSCO) databases. A grey literature search was also conducted.

Results

A total of 96 papers were included. Healthcare professionals experienced psychological symptoms such as anger, sadness and guilt after a safety incident. Physical symptoms were reported, including symptoms related to sleep and gastrointestinal symptoms. At the professional and social levels, the incident affected their work, relationships and well-being. Positive impacts were also noted.

Conclusions

This study provides a comprehensive overview of healthcare professionals' experiences after safety incidents. In addition, this study also captured the positive impacts of safety incidents, such as learning from mistakes.

Implications for the Profession and/or Patient Care

By recognising the symptoms and impacts associated with the second victim syndrome, appropriate support can be provided for healthcare professionals.

Impact

The findings of this study can be used to identify the relevant harm to professionals after a safety incident, which could help to improve the well-being of these workers.

Patient or Public Contribution

No patient or public contribution.

Protocol Registration

Open Science Framework, https://archive.org/details/osf-registrations-5cdmu-v1

On the Move to Surgery: A Scoping Review of Patient‐Reported Outcomes for Preoperative Walking Into the Operating Theatre

ABSTRACT

Introduction

Although healthcare infrastructure has improved in recent years, the preoperative journey of patients is often accompanied by anxiety. Allowing patients to walk to the operating theatre is a simple, yet underexplored strategy that may enhance their sense of autonomy and reduce anxiety. As patient-centred care gains importance, evaluating the effects of this approach on patient-reported outcomes may be more relevant than widely assumed.

Aim

In this scoping review, we aim to analyse the published literature on preoperative walking into the operating theatre and patient-reported outcomes, such as anxiety and satisfaction.

Design

This study was a scoping review that followed the Joanna Briggs Institute methodology and Preferred Reporting Items for Systematic Reviews and Meta-Analyses, Scoping Review extension guidelines.

Methods

Inclusion criteria were adult patients undergoing elective surgery and walking to the operating theatre. Data were extracted using a standardised form, and critical appraisal was performed by using ROBINS-I V2.0, RoB2 and ROB-E tools.

Data Sources

Embase, MEDLINE, Cochrane databases (OVID) and CINAHL (EBSCOhost) were searched up to 31st January 2025.

Results

Our search identified 958 articles, with seven trials included in the final analysis. The studies, published between 1994 and 2022, involved 3001 patients from North America, Asia and Europe. The interventions varied, but most patients reported improved satisfaction and reduced anxiety when walking to the operating theatre. No adverse events were reported, although patient preferences varied, with younger patients more likely to prefer walking.

Conclusion

Walking to the theatre positively impacts patient satisfaction and autonomy. However, patient selection is key, as not all individuals are physically or mentally prepared for walking. Future research could explore unaccompanied walking and its effects on hospital resource utilisation. Preoperative walking is a beneficial intervention that enhances patient satisfaction and reduces anxiety, providing a feasible alternative to bed transport for many elective surgical patients.

Patient or Public Contribution

No patient or public involvement.

International Competencies of Advanced Practice Nurses in Critical Care: An Integrative Review

ABSTRACT

Aim

This review explores the roles, competencies, and scope of practice of APNs in critical care based on international literature. It also derives implications for the development of advanced nursing roles in Austria.

Design

Integrative review.

Data Sources

The research team conducted a systematic search of PubMed, CINAHL, and Web of Science to identify relevant peer-reviewed publications from 2007 to 2023.

Review Methods

A systematic search of electronic databases was undertaken, following Whittemore and Knafl's five-step methodology. The included publications met the defined inclusion criteria and were appraised for quality using the Joanna Briggs Institute critical appraisal checklists. Relevant data were extracted and thematically analysed.

Results

The analysis of 14 international studies revealed recurring themes related to APN core competencies and scope of practice in critical care. These were structured according to Hamric's model. However, Austria faces several challenges, including limited legal frameworks, missing educational structures, and a lack of role clarity. These factors hinder the implementation of APN roles.

Conclusions

Internationally, APNs demonstrate advanced clinical skills, provide leadership in team-based care, and integrate evidence-based practice. These attributes enhance patient outcomes and system efficiency. In Austria, restrictive regulations, limited education, and unclear roles hinder these competencies. Reform is needed to align with international standards, and further research should explore their implementation in Austria.

Implications

A gap exists between internationally demonstrated APN competencies and the current state of advanced nursing practice in Austria. This highlights the need for clearer role definitions, regulatory frameworks, and educational strategies. Addressing this gap would strengthen APN roles and improve healthcare quality. This study highlights the need to bridge this disparity.

Reporting Method

This review follows the PRISMA 2020 guidelines for systematic reviews Page et al. (2021).

Patient or Public Contribution

No patient or public contribution.

Stemming the Tide: Tackling Retention and Attrition Challenges in Rural and Northern Healthcare to Sustain Canada's Nursing Workforce

ABSTRACT

Aim

This study was an investigation of the key factors influencing nurse retention and attrition focusing on the perspectives of current and former nurses within the context of the ongoing nursing shortage exacerbated by the COVID-19 pandemic.

Design

This descriptive, cross-sectional study was designed to explore the complex dynamics of nurse retention and attrition in a rural and northern academic hospital in northwestern Ontario.

Methods

An online survey was administered to current and former nurses to compare the perspectives of those with no intention of leaving the organisation, those contemplating departure within the next year, and those who had reduced their work hours in the past 5 years.

Results

Of the 288 respondents, 47% indicated no intention to leave and 17% reported having already left the organisation. The primary reasons for attrition included excessive workload demands, challenges maintaining a healthy work-life balance and dissatisfaction with management practices and organisational support. Respondents recommended improving leadership effectiveness, increasing staffing levels and implementing retention-focused initiatives to enhance job satisfaction and reduce turnover.

Conclusion

This study underscored the urgent need for strategic interventions tailored to retain nursing staff, particularly in rural and northern communities already facing significant recruitment and retention challenges. By addressing workload pressures, enhancing work-life balance, strengthening leadership and offering retention initiatives, health care organisations can improve job satisfaction and reduce attrition. System-level changes are essential to creating a sustainable and supportive environment for nursing professionals.

Impact

The findings highlight the critical need for immediate action to address the nursing crisis in rural and northern health care settings. They emphasise the importance of systemic interventions aimed at improving staffing levels, leadership practices and overall work conditions to safeguard the future of nursing in these underserved regions.

Patient or Public Contribution

No patient or public contribution.

Implications for the Profession and/or Patient Care

This research will contribute to the extant literature on the retention and attrition levels of nursing by offering a unique perspective from a rural and northern academ. The findings may help to guide hospital administrators to develop targeted strategies to enhance nurse retention rates within their organisations. By prioritising nurse satisfaction, these efforts will foster positive nurse–patient interactions and improve overall care outcomes.

Reporting Method

This study is reported according to STROBE guidelines.

Perspectives of Healthcare Professionals, Patients and Family Members on Managing Regular Medications Across the Perioperative Pathway: An Exploratory Qualitative Study

ABSTRACT

Aim

To explore healthcare professionals', patients', and family members' experiences of managing regular medications across the perioperative pathway in a specialist cancer hospital in Melbourne.

Design

An exploratory qualitative study using a descriptive-interpretive approach.

Methods

Interviews were conducted with 11 patients and seven family members, and focus groups with 10 anaesthetists, seven surgeons, four nurses, and 10 pharmacists (N = 49) between October 2024 and April 2025. Transcripts were analysed using Braun and Clarke's reflexive thematic approach and mapped into the Systems Engineering Initiative for Patient Safety (SEIPS) 2.0 human factors framework.

Results

Three interrelated themes were constructed: (1) Work system elements shaping perioperative medication management, encompassing medication and surgical contexts, documentation gaps, reliable medication information, communication infrastructures, roles and responsibilities, and perioperative area resources; (2) Processes influencing medication management practice, characterised by continuity of care at transition points and flagging processes, interdisciplinary collaboration and role interpretation in medication management, patient involvement, family member involvement, and healthcare professional perspectives; and (3) Outcomes of medication management, including patient and organisational outcomes, such as workflow inefficiencies, procedure cancellations, and unplanned readmissions.

Conclusion

Findings indicated that addressing the complexity of perioperative medication safety demands coordinated contributions across multiple professional disciplines. Strengthening interdisciplinary collaboration, clarifying shared responsibilities, embedding structured reconciliation processes at transitions of care, standardizing communication protocols, and involving patients and families are all critical strategies.

Implications for the Profession and/or Patient Care

This study highlights the need for interdisciplinary coordination and clear role definitions, with nurses as the key contributor, to support collaborative medication decisions in perioperative cancer care.

Impact

This study explored challenges in managing regular medications during cancer surgery, offering insights to guide safer practices for perioperative teams, patients, and families in cancer care settings.

Reporting Method

COREQ (Consolidated Criteria for Reporting Qualitative Research) guidelines.

Patient or Public Contribution

None.

The decision uncertainty toolkit: Risk measures and visual outputs to support decision making during public health crises

by Megan Wiggins, Marie Varughese, Ellen Rafferty, Sasha van Katwyk, Christopher McCabe, Jeff Round, Erin Kirwin

Background

During public health crises such as the COVID-19 pandemic, decision-makers relied on infectious disease models to evaluate policy options. Often, there is a high degree of uncertainty in the evidence base underpinning these models. When there is increased uncertainty, the risk of selecting a policy option that does not align with the intended policy objective also increases; we term this decision risk. Even when models adequately capture uncertainty, the tools used to communicate their outcomes, underlying uncertainty, and associated decision risk have often been insufficient. Our aim is to support infectious disease modellers and decision-makers in interpreting and communicating decision risk when evaluating multiple policy options.

Methods

We developed the Decision Uncertainty Toolkit by adapting methods from health economics and infectious disease modelling to improve the interpretation and communication of uncertainty. Specifically, we developed a quantitative measure of decision risk as well as a suite of risk visualizations. We refined the toolkit contents based on feedback from early dissemination through conferences and workshops.

Results

The Decision Uncertainty Toolkit: (i) adapts and extends existing health economics methods for characterization, estimation, and communication of uncertainty to infectious disease modelling, (ii) introduces a novel risk measure that quantitatively captures the downside risk of policy alternatives, (iii) provides visual outputs for dissemination and communication of uncertainty and decision risk, and (iv) includes instructions on how to use the toolkit, standard text descriptions and examples for each component. The use of the toolkit is demonstrated through a hypothetical example.

Conclusion

The Decision Uncertainty Toolkit improves existing methods for communicating infectious disease model results by providing additional information regarding uncertainty and decision risk associated with policy alternatives. This empowers decision-makers to consider and evaluate decision risk more effectively when making policy decisions. Improved understanding of decision risk can improve outcomes in future public health crises.

“<i>Skills for Resilience in Farming</i>”; an evidence-based, theory driven educational intervention to increase mental health literacy and help-seeking intentions among Irish farmers

by Siobhán O’Connor, Sandra M. Malone, Joseph Firnhaber, Sinéad O’Keeffe, John McNamara, Anna Donnla O’Hagan

While mental health literacy is an important component to successful help-seeking, rural populations often face gaps in both knowledge and service provision. Informed by the Theory of Planned Behaviour and Self-Efficacy Theory, we designed the ‘Skills for Resilience’ as a brief, once-off, community-based educational intervention to increase Irish farmers’ mental health literacy and help-seeking intentions. We adopted a quasi-experimental between (group: intervention and control) and within-group design (time: baseline [T1], immediately post-intervention [T2], and ≥ 1 month post-intervention [T3]). A total of 72 participants (intervention n = 37; control n = 35) were recruited from knowledge-sharing discussion groups. Although recruitment was also open to women, all discussion groups consisted of men. A trained facilitator delivered a discussion lasting between 30 and 90 minutes. Five intervention participants also participated in a qualitative interview after T3. Our results identified intervention participants’ mental health literacy increased significantly at T2 and T3 compared to T1, but did not increase between T2 and T3. Mental health literacy was also significantly greater in the intervention group compared to the control group at T2 and T3. Help-seeking intentions and self-efficacy in seeking mental healthcare also increased significantly at T2 compared to T1, but did not increase between T1 and T3 or T2 and T3. There were no significant changes in outcome measures for the control group at any time point. Through reflexive thematic analysis we identified that the intervention also addressed stigma against mental health (Theme 1) and provided important resources for participants and their community’s present and future coping (Theme 2). At T3, 100% of participants enjoyed the discussion and would recommend the intervention to other farmers. This intervention provides a successful example of integrating the Theory of Planned Behaviour and Self-Efficacy Theory to improve mental health literacy in farmers using a brief, educational intervention.

Methodological issues in visible LED therapy dermatological research and reporting

by David Robert Grimes

Background

The advent of mass-market Light Emitting Diodes (LEDs) has seen considerable interest in potential dermatological applications of LED light photobiomodulation (PBM) for a range of conditions, with a thriving market for direct-to-consumer LED treatments, including red light, blue light, and yellow light wavelengths. Evidence of efficacy is however mixed, and studies report a wide range of irradiances and wavelengths as well as outcome measures, rendering interpretation, comparison, and even efficacy evaluation prohibitive and impeding evidence synthesis.

Methods

This work establishes a model for comparing patient received doses, applying this to existent studies to ascertain potential inhomogeneity in reported doses and wavelengths employed. Patient doses were contrasted to equivalent solar exposure time needed to achieve fluences reported at specified wavelengths in the red light (RL), blue light (BL), and yellow light (YL) portion of the spectrum, yielding a comparison of reported doses to typical solar irradiance at the Earth’s surface. Methodological aspects including dose validation, blinding, and bias were also analysed.

Results

27 relevant studies for dermatological conditions including acne vulgaris (n=9, 33.3%), wrinkle-reduction (n=5, 18.5%), wound-healing (n=3, 11.1%), psoriasis severity (n=3, 11.1%), and erythemal index (n=7, 25.9%) were assessed. Outcome measures were highly heterogeneous between studies, with total patients ranging from 14 – 105 (median: 26). Fluences and wavelengths used in treatment differed over three orders of magnitude across studies even for the same conditions (0.1 J cm−2−126 J cm−2, median: 40.5 J cm−2). Derived equivalent solar time ranged from 0.01-19.35 hours (median: 3.3 hours), with central wavelengths between 405nm (BL) - 660nm (RL). No studies reported any dose validation, 10 (37.0%) were sponsored by the device manufacturer with a further 3 (11.1%) conducted by commercial dermatology practices offering the therapy under investigation. Assessors were unblinded to the treatment/ control groups in 33.3% (n=9), while a further 9 (33.3%) did not have any non-light control group, leaving only 33.3% (n=9) with both control group and blinded outcome assessment.

Conclusions

Results of this analysis suggest that fluences, wavelengths, and effective dose vary inconsistently between studies with often scant biological justification. This analysis suggests that better dose quantification and understanding of the underlying biophysics as well as plausible biological justifications for various wavelengths and fluences are imperative if LED therapy studies for dermatology are to be informative and research replicability improved.

Environment and weight class linked to skin microbiome structure of juvenile Eastern hellbenders (<i>Cryptobranchus alleganiensis alleganiensis</i>) in human care

by Andrea C. Aplasca, Peter B. Johantgen, Christopher Madden, Kilmer Soares, Randall E. Junge, Vanessa L. Hale, Mark Flint

Amphibian skin is integral to promoting normal physiological processes in the body and promotes both innate and adaptive immunity against pathogens. The amphibian skin microbiota is comprised of a complex assemblage of microbes and is shaped by internal host characteristics and external influences. Skin disease is a significant source of morbidity and mortality in amphibians, and increasing research has shown that the amphibian skin microbiota is an important component in host health. The Eastern hellbender (Cryptobranchus alleganiensis alleganiensis) is a giant salamander declining in many parts of its range, and captive-rearing programs are important to hellbender recovery efforts. Survival rates of juvenile hellbenders in captive-rearing programs are highly variable, and mortality rates are overall poorly understood. Deceased juvenile hellbenders often present with low body condition and skin abnormalities. To investigate potential links between the skin microbiota and body condition, we collected skin swab samples from 116 juvenile hellbenders and water samples from two holding tanks in a captive-rearing program. We used 16s rRNA gene sequencing to characterize the skin and water microbiota and observed significant differences in the skin microbiota by weight class and tank. The skin microbiota of hellbenders that were housed in tanks in close proximity were generally more similar than those housed physically distant. A single taxa, Parcubacteria, was differentially abundant by weight class only and observed in higher abundance in low weight hellbenders. These results suggest a specific association between this taxa and Low weight hellbenders. Additional research is needed to investigate how husbandry factors and potential pathogenic organisms, such as Parcubacteria, impact the skin microbiota of hellbenders and ultimately morbidity and mortality in the species.

Bacteria isolated from the grape phyllosphere capable of degrading guaiacol, a main volatile phenol associated with smoke taint in wine

by Claudia Castro, Jacquelyn Badillo, Melissa Tumen-Velasquez, Adam M. Guss, Thomas S. Collins, Frank Harmon, Devin Coleman-Derr

Recent wildfires near vineyards in the Pacific United States have caused devastating financial losses due to smoke taint in wine. When wine grapes (Vitis vinifera) are exposed to wildfire smoke, their berries absorb volatile phenols derived from the lignin of burning plant material. Volatile phenols are released during the winemaking process giving the finished wine an unpleasant, smokey, and ashy taste known as smoke taint. Bacteria are capable of undergoing a wide variety of metabolic processes and therefore present great potential for bioremediation applications in many industries. In this study, we identify two strains of the same species that colonize the grape phyllosphere and are able to degrade guaiacol, a main volatile phenol responsible for smoke taint in wine. We identify the suite of genes that enable guaiacol degradation in Gordonia alkanivorans via RNAseq of cells growing on guaiacol as a sole carbon source. Additionally, we knockout guaA, a cytochrome P450 gene involved in the conversion of guaiacol to catechol; ΔguaA cells cannot catabolize guaiacol in vitro, providing evidence that GuaA is necessary for this process. Furthermore, we analyze the microbiome of berries and leaves exposed to smoke in the vineyard to investigate the impact of smoke on the grape microbial community. We found smoke has a significant but small effect on the microbial community, leading to an enrichment of several genera belonging to the Bacilli class. Collectively, this research shows that studying microbes and their enzymes has the potential to identify novel tools for alleviating smoke taint.

Midlife and old-age cardiovascular risk factors, educational attainment, and cognition at 90-years – population-based study with 48-years of follow-up

by Anni Varjonen, Toni Saari, Sari Aaltonen, Teemu Palviainen, Mia Urjansson, Paula Iso-Markku, Jaakko Kaprio, Eero Vuoksimaa

We examined the associations of midlife and old-age cardiovascular risk factors, education, and midlife dementia risk scores with cognition at 90 + years, using data from a population-based study with 48 years of follow-up. Participants were 96 individuals aged 90–97 from the older Finnish Twin Cohort study. Individual cardiovascular risk factors assessed via questionnaires in 1975, 1981, 1990, and 2021–2023 included blood pressure, body mass index, physical activity, and cholesterol, and self-reported educational attainment. The Cardiovascular Risk Factors, Aging, and Dementia (CAIDE) score and an educational-occupational attainment score were used as midlife dementia risk scores. Cognitive assessments included semantic fluency, immediate and delayed recall from a 10-word list learning task, and a composite cognitive score. Regression analyses were conducted with dementia risk factors predicting cognition at 90 + years, adjusting for age, sex, education, follow-up time, and apolipoprotein E genotype (ε4-carrier vs non-carriers). Results showed that higher education and higher educational-occupational score were associated with better cognitive performance in all cognitive measures. Those with high midlife blood pressure scored significantly higher in all cognitive tests than those with normal blood pressure. Conversely, those with high old-age blood pressure scored lower in semantic fluency and composite cognitive score, but not in immediate or delayed recall. Other cardiovascular risk factors and the CAIDE score did not show consistent associations with cognition. Education appears to have a long-lasting protective effect in cognitive aging, whereas midlife and old-age cardiovascular risk factors were not significantly associated with cognition at 90 + years.

Continuous or discrete magnitudes? A comparative study between cats, dogs and humans

by Mireia Solé Pi, Luz A. Espino, Péter Szenczi, Marcos Rosetti, Oxána Bánszegi

A long-standing question in the study of quantity discrimination is what stimulus properties are controlling choice. While some species have been found to do it based on the total amount of stimuli and without using numerical information, others prefer numeric rather than any continuous magnitude. Here, we tested cats, dogs, and humans using a simple two-way spontaneous choice paradigm (involving food for the first two, images for the latter) to see whether numerosity or total surface area has a greater influence on their decision. We found that cats showed preference for the larger amount of food when the ratio between the stimuli was 0.5, but not when it was 0.67; dogs did not differentiate between stimuli presenting the two options (smaller vs. larger amount of food) regardless of the ratio between them, but humans did so almost perfectly. When faced with two stimuli of the same area but different shapes, dogs and humans exhibited a preference for certain shapes, particularly the circle, while cats’ choices seemed to be at chance level. Furthermore, cats’ and dogs’ reaction times were equal across conditions, while humans were quicker when choosing between stimuli in trials where the shape was the same, but the surface area was different, and even more so when asked to choose between two differently sized circle shapes. Results suggest that there is no universal rule regarding how to process quantity, but rather that quantity estimation seems to be tied to the ecological context of each species. Future work should focus on testing quantity estimation in different contexts and different sources of motivation.

The impact of wildfires on the diet of <i>Podarcis lusitanicus</i> revealed by DNA metabarcoding

by Catarina Simões, Diana S. Vasconcelos, Raquel Xavier, Xavier Santos, Catarina Rato, D. James Harris

Fire has long been recognized as an important ecological and evolutionary force in plant communities, but its influence on vertebrate community ecology, particularly regarding predator-prey interactions, remains understudied. This study reveals the impact of wildfires on the diet of Podarcis lusitanicus, a lizard species inhabiting a fire-prone region in the Iberian Peninsula. In order to explore diet variability associated with different local burn histories, we evaluated P. lusitanicus diet across three types of sites in Northern Portugal: those had not burned since 2016, those burned in 2016, and those more recently burned in 2022. Podarcis lusitanicus is a generalist arthropod predator with dietary flexibility. Given the turnover of arthropod species after fire, it is expected to find variations in diet caused by different fire histories, especially between unburned and recently burned sites. From DNA metabarcoding of faecal samples, our study revealed that while prey richness remained unaffected by wildfire regime, significant shifts occurred in diet composition between more recently burned and unburned areas. Specifically, we found that differences in diet composition between these two fire regimes were due to the presence of Tapinoma ants and jumping spiders (Salticus scenicus). These prey were present in the diets of lizards occupying unburned areas, while these were absent in areas burned in 2022. Interestingly, diets in unburned areas and areas burned in 2016 showed no significant differences, highlighting the lizards’ ecological flexibility and the habitat’s resilience over time. The ant species T. topitotum was found in dominance in both burned areas, suggesting that this species may be fire tolerant. In addition, families such as Cicadellidae and Noctuidae were found to be more associated with more recently burned areas. The use of DNA metabarcoding in this study was essential to provide a more detailed and accurate view of predator-prey interactions in ecosystems susceptible to fire, and therefore a better understanding of changes in prey consumption in this fire-adapted ecosystem.

Occurrence of advance care planning for persons with dementia, cancer and other chronic-progressive diseases in general practice: longitudinal analysis of data from health records linked with administrative data

Por: Hommel · D. · Azizi · B. · Visser · M. · Bolt · S. R. · Blom · J. W. · Janssen · D. J. A. · van Hout · H. P. J. · Francke · A. L. · Verheij · R. A. · Joling · K. J. · van der Steen · J. T.
Objectives

There are substantial barriers to initiate advance care planning (ACP) for persons with chronic-progressive disease in primary care settings. Some challenges may be disease-specific, such as communicating in case of cognitive impairment. This study assessed and compared the initiation of ACP in primary care with persons with dementia, Parkinson’s disease, cancer, organ failure and stroke.

Design

Longitudinal study linking data from a database of Dutch general practices’ electronic health records with national administrative databases managed by Statistics Netherlands.

Setting and participants

Data from general practice records of 199 034 community-dwelling persons with chronic-progressive disease diagnosed between 2008 and 2016.

Outcome measure

Incidence rate ratio (IRR) of recorded ACP planning conversations per 1000 person-years in persons with a diagnosis of dementia, Parkinson’s disease, organ failure, cancer or stroke, compared with persons without the particular diagnosis. Poisson regression and competing risk analysis were performed, adjusted for age, gender, migration background, living situation, frailty index and income, also for disease subsamples.

Results

In adjusted analyses, the rate of first ACP conversation for persons with organ failure was the lowest (IRR 0.70 (95% CI 0.68 to 0.73)). Persons with cancer had the highest rate (IRR 1.75 (95% CI 1.68 to 1.83)). Within the subsample of persons with organ failure, the subsample of persons with dementia and the subsample of stroke, a comorbid diagnosis of cancer increased the probability of ACP. Further, for those with organ failure or cancer, comorbid dementia decreased the probability of ACP.

Conclusions

Considering the complexity of initiating ACP for persons with organ failure or dementia, general practitioners should prioritise offering it to them and their family caregivers. Policy initiatives should stimulate the implementation of ACP for people with chronic-progressive disease.

Barriers and enablers to healthcare access for older adults in Cambodia: perspectives of healthcare professionals - a qualitative study

Por: Maung · K. T. · Phou · S. · Hunsberger · M. · Santosa · A. · Ng · N. · Sopheab · H. · Chhea · C. · Eriksson · M.
Objective

To explore health professionals’ perspectives on the barriers and enablers of healthcare access for older adults in Cambodia.

Design

A qualitative study based on semi-structured interviews conducted in Khmer, recorded, transcribed, translated into English and analysed using an abductive thematic analysis approach.

Setting

Phnom Penh, Cambodia.

Participants

A purposive sample of 11 health professionals serving in diverse roles and sectors participated in the study.

Results

Three key barriers emerged: (1) institutional barriers, (2) patient-specific access barriers and (3) communication barriers. However, four key enablers were also identified: (1) supportive healthcare environment, (2) reaching out to improve access to health services, (3) peer and community engagement and (4) government direct support to access healthcare. Despite previous policy efforts, gaps in the implementation of healthcare services for older adults persist across all health facilities. Health professionals identified that improving healthcare access for older adults in Cambodia requires a multifaceted strategy involving proactive outreach, health promotion, financial assistance and stronger community and family support.

Conclusion

Effective policy implementation requires collaboration among stakeholders and the active involvement of older adults in programme design to enhance dignity and well-being in Cambodia’s ageing population.

Investigating the use and impact of community Care (Education) and Treatment Reviews (C(E)TRs) in people with intellectual disability and autistic people: protocol for a cohort study using electronic health records

Por: McCoy · B. · Bell · L. · Wang · K. · Jin · H. · Hassiotis · A. · Strydom · A. · Downs · J. · Carter · B. · Shetty · H. · Stewart · R. · Ali · A. · Sheehan · R.
Introduction

Care (Education) and Treatment Reviews (C(E)TRs) are intended to reduce unnecessary psychiatric hospital admission and length of stay for people with intellectual disability and autistic people. The use and impact of C(E)TRs have not been systematically evaluated since their introduction in England in 2015. The aims of this study are to describe the demographic and clinical profiles of people who receive a community C(E)TR and to investigate their effects on admission, length of hospital stay and clinical and functional change.

Methods and analysis

We will conduct a retrospective cohort study using de-identified data from electronic health records derived from two large National Health Service mental health providers in London, England, including one replication site. Data will be extracted using the Clinical Record Interactive Search (CRIS) tool for all people with recorded intellectual disability and/or autism who received mental healthcare from 2015. We will identify community C(E)TR events using keyword searches. Community C(E)TRs will be examined in two ways: (1) In a community cohort, we will capture data in the 6-month periods before and after a community C(E)TR and compare this to a matched control group and (2) In a hospital cohort, we will compare groups who did and did not receive a community C(E)TR prior to their admission. We will describe the socio-demographic and clinical profiles of each group and their health service use, and compare C(E)TR and no C(E)TR groups using t-tests (or a non-parametric equivalent). The primary outcomes are admission to a psychiatric hospital (community cohort) and length of psychiatric hospital admission and clinical change (hospital cohort). Admission to psychiatric hospital will be estimated using propensity score weighting and difference-in-differences methods. Cox’s proportional hazard model will be used for length of hospital admission and repeated-measures analysis of variance (ANOVA) will be used to assess clinical change.

Ethics and dissemination

Use of CRIS to examine de-identified clinical data for research purposes has overarching ethical approval. This study has been granted local approval by the South London and Maudsley CRIS Oversight Committee. Findings will be disseminated in an open-access peer-reviewed academic publication, at conference presentations, and to service users and carers in accessible formats.

❌