Pathological and phylogenetic characterization of Amphibiothecum sp. infection in an isolated amphibian (Lissotriton helveticus) population on the island of Rum (Scotland).

Outbreaks of cutaneous infectious disease in amphibians are increasingly being attributed to an overlooked group of fungal-like pathogens, the Dermocystids. During the last 10 years on the Isle of Rum, Scotland, palmate newts (Lissotriton helveticus) have been reportedly afflicted by unusual skin lesions. Here we present pathological and molecular findings confirming that the pathogen associated with these lesions is a novel organism of the order Dermocystida, and represents the first formally reported, and potentially lethal, case of amphibian Dermocystid infection in the UK. Whilst the gross pathology and the parasite cyst morphology were synonymous to those described in a study from infected L. helveticus in France, we observed a more extreme clinical outcome on Rum involving severe subcutaneous oedema. Phylogenetic topologies supported synonymy between Dermocystid sequences from Rum and France and as well as their distinction from Amphibiocystidium spp. Phylogenetic analysis also suggested that the amphibian-infecting Dermocystids are not monophyletic. We conclude that the L. helveticus-infecting pathogen represents a single, novel species; Amphibiothecum meredithae.

Perceived responses, capitalization, and daily gratitude: Do age and closeness matter?

Successful capitalization and feelings of gratitude are both dependent upon perceived responsiveness of a social partner, but they are understudied in combination and have yet to be studied jointly in a daily context. Taking a new approach to studying capitalization, the current study examines the effect of daily capitalization on momentary gratitude and investigates the role of the capitalizer's typical perceived responses to capitalization attempts (PRCA) on daily gratitude and future capitalization attempts. Age and social closeness are studied as amplifiers, as older adults prioritize positive emotional experiences and it is more common to capitalize with closer others for whom the capitalizer's good news is salient and who are thus motivated to provide support to the capitalizer. Participants (N = 290) aged 25-85 years completed a trait-level survey followed by ecological momentary assessment surveys (six per day) for 10 days. Results demonstrate that people experienced higher daily gratitude when capitalizing, especially when interacting with a social partner rated as high in closeness. Those who had higher trait active-constructive PRCA also experienced higher daily gratitude, with this effect strengthened among older adults. Perceived responses were also associated with more attempts to capitalize in daily life. This work suggests engaging in capitalization and perceiving regular enthusiastic and supportive responses to one's capitalization attempts have daily emotional and behavioral benefits. Notably, regular enthusiastic responses to capitalization attempts may be a motivator for future attempts across adulthood, but it may be particularly likely to foster feelings of gratitude in old age. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Biofidelity and Limitations of Instrumented Mouthguard Systems for Assessment of Rigid Body Head Kinematics.

Instrumented mouthguard systems (iMGs) are commonly used to study rigid body head kinematics across a variety of athletic environments. Previous work has found good fidelity for iMGs rigidly fixed to anthropomorphic test device (ATD) headforms when compared to reference systems, but few validation studies have focused on iMG performance in human cadaver heads. Here, we examine the performance of two boil-and-bite style iMGs in helmeted cadaver heads. Three unembalmed human cadaver heads were fitted with two instrumented boil-and-bite mouthguards [Prevent Biometrics and Diversified Technical Systems (DTS)] per manufacturer instructions. Reference sensors were rigidly fixed to each specimen. Specimens were fitted with a Riddell SpeedFlex American football helmet and impacted with a rigid impactor at three velocities and locations. All impact kinematics were compared at the head center of gravity. The Prevent iMG performed comparably to the reference system up to ~ 60 g in linear acceleration, but overall had poor correlation (CCC = 0.39). Prevent iMG angular velocity and BrIC generally well correlated with the reference, while underestimating HIC and overestimating HIC duration. The DTS iMG consistently overestimated the reference across all measures, with linear acceleration error ranging from 10 to 66%, and angular acceleration errors greater than 300%. Neither iMG demonstrated consistent agreement with the reference system. While iMG validation efforts have utilized ATD testing, this study highlights the need for cadaver testing and validation of devices intended for use in-vivo, particularly when considering realistic (non-idealized) sensor-skull coupling, when accounting for interactions with the mandible and when subject-specific anatomy may affect device performance.

Accuracy of Instrumented Mouthguards During Direct Jaw Impacts Seen in Boxing.

PURPOSE: Measuring head kinematics data is important to understand and develop methods and standards to mitigate head injuries in contact sports. Instrumented mouthguards (iMGs) have been developed to address coupling issues with previous sensors. Although validated with anthropomorphic test devices (ATDs), there is limited post-mortem human subjects (PMHS) data which provides more accurate soft tissue responses. This study evaluated two iMGs (Prevent Biometrics (PRE) and Diversified Technical Systems (DTS) in response to direct jaw impacts. METHODS: Three unembalmed male cadaver heads were properly fitted with two different boil-and-bite iMGs and impacted with hook (4 m/s) and uppercut (3 m/s) punches. A reference sensor (REF) was rigidly attached to the base of the skull, impact kinematics were transformed to the head center of gravity and linear and angular kinematic data were compared to the iMGs including Peak Linear Acceleration, Peak Angular Acceleration, Peak Angular Velocity, Head Injury Criterion (HIC), HIC duration, and Brain Injury Criterion. RESULTS: Compared to the REF sensor, the PRE iMG underpredicted most of the kinematic data with slopes of the validation regression line between 0.72 and 1.04 and the DTS overpredicted all the kinematic data with slopes of the regression line between 1.4 and 8.7. CONCLUSION: While the PRE iMG was closer to the REF sensor compared to the DTS iMG, the results did not support the previous findings reported with use of ATDs. Hence, our study highlights the benefits of using PMHS for validating the accuracy of iMGs since they closely mimic the human body compared to any ATD's mandible.

Guideline on the investigation and management of acute transfusion reactions. Prepared by the BCSH Blood Transfusion Task Force.

Although acute non-haemolytic febrile or allergic reactions (ATRs) are a common complication of transfusion and often result in little or no morbidity, prompt recognition and management are essential. The serious hazards of transfusion haemovigilance organisation (SHOT) receives 30-40 reports of anaphylactic reactions each year. Other serious complications of transfusion, such as acute haemolysis, bacterial contamination, transfusion-related acute lung injury (TRALI) or transfusion-associated circulatory overload (TACO) may present with similar clinical features to ATR. This guideline describes the approach to a patient developing adverse symptoms and signs related to transfusion, including initial recognition, establishing a likely cause, treatment, investigations, planning future transfusion and reporting within the hospital and to haemovigilance organisations. Key recommendations are that adrenaline should be used as first line treatment of anaphylaxis, and that transfusions should only be carried out where patients can be directly observed and where staff are trained in manging complications of transfusion, particularly anaphylaxis. Management of ATRs is not dependent on classification but should be guided by symptoms and signs. Patients who have experienced an anaphylactic reaction should be discussed with an allergist or immunologist, in keeping with UK resuscitation council guidelines.

Community Engagement to Address Cancer Health Disparities: A Process EVALUATION using the Partnership Self-Assessment Tool.

BACKGROUND: African Americans suffer disproportionately from cancer health disparities, and population-level prevention is needed. OBJECTIVES: A community-academic partnership to address cancer health disparities in two predominately African American jurisdictions in Maryland was evaluated. METHODS: The Partnership Self-Assessment Tool (PSAT) was used in a process evaluation to assess the partnership in eight domains (partnership synergy, leadership, efficiency, management, resources, decision making, participation, and satisfaction). RESULTS: Mean scores in each domain were high, indicative of a functional and synergistic partnership. However, scores for decision making (Baltimore City's mean score = 9.3; Prince George's County's mean score = 10.8; p = .02) and participation (Baltimore City's mean score = 16.0; Prince George's County's mean score = 18.0; p = .04) were significantly lower in Baltimore City. CONCLUSIONS: Community-academic partnerships are promising approaches to help address cancer health disparities in African American communities. Factors that influence decision making and participation within partnerships require further research.

Promoting safe transfusion practice: right blood, right patient, right time.

Despite an array of initiatives designed to support the delivery of safe and appropriate transfusion practice, incidences of patients receiving the wrong blood continue to be reported. Nurses play a key role in delivering safe and appropriate transfusion care and have a responsibility to support national initiatives, such as the NHS Better Blood Transfusion programme of action and the National Patient Safety Agency Safer Practice Notice 14, Right Patient, Right Blood. This article examines factors, which impact on the successful implementation of a programme aimed at promoting best transfusion practice, such as organizational support, leadership, education and competency assessment, and the role of audit and feedback. By championing the systematic assessment of transfusion procedures, the implementation of education and guidelines and the use of innovative approaches, such as care bundles, we can ensure that nurses have the appropriate knowledge, skills and understanding to provide the highest standards of transfusion care to our patients.

Safe transfusion of blood and blood components.

Nurses are integral to the blood transfusion process. This article, which forms part of Nursing Standards clinical skills series, outlines the role of the nurse in evidence-based transfusion practice. Patient assessment, preparation, pre-transfusion checks, documentation and adverse reactions are discussed.

Serious hazards of transfusion: a decade of hemovigilance in the UK.

The Serious Hazards of Transfusion (SHOT) scheme is a UK-wide, independent, professionally led hemovigilance system focused on learning from adverse events. SHOT was established in 1996 as a confidential reporting system for significant transfusion-related events, building an evidence base to support blood safety policy decisions, clinical guidelines, clinician education, and improvements in transfusion practice. Recommendations are formulated by an independent steering group drawn from medical royal colleges and professional bodies. Ten years after its inception, SHOT has analyzed 2630 transfusion safety events, published 8 annual reports with recommendations, and presented data nationally and internationally. These recommendations have underpinned key initiatives, in particular the UK Department of Health "Better Blood Transfusion" strategy. SHOT has encouraged open reporting of adverse events and "near-misses" in a supportive, learning culture, vigilance in hospital transfusion practice, and evaluation of information technology to support this process. The importance of education and training has been emphasized. Detailed analysis of events has identified weaknesses in the transfusion chain. A collaborative initiative between SHOT, the Chief Medical Officer for England's National Blood Transfusion Committee, and the National Patient Safety Agency aims to reduce ABO-incompatible transfusions by improving bedside practice. Cumulative SHOT data have documented the decline in transfusion-related graft vs host disease after implementation of leucodepletion and have highlighted transfusion-related acute lung injury and bacterial contamination of platelets as important causes of death and morbidity. The UK blood services have developed strategies to reduce these risks. Future SHOT data will evaluate the success of these and other blood safety improvements.

Does time matter? An investigation of knowledge and attitudes following blood transfusion training.

The Scottish National Blood Transfusion service have developed an educational programme aimed at ensuring a high standard of care for blood transfusions to minimise risk to patients and healthcare practitioners. This paper investigates whether knowledge and understanding of, and attitudes towards, safe practice declined over time following completion of module 1 of the programme. An online survey was administered to a range of healthcare practitioners who had completed the module. The survey tool tested knowledge and ascertained views on blood transfusion practice and perceptions of the module's importance. Comparisons were made between participants 6-8 weeks, 12-14 months and 22-24 months since module completion. In-depth interviews were conducted with a sub-sample of survey respondents to explore attitudes in more detail. Findings indicate evidence of a slight though statistically significant reduction in the degree of emphasis respondents placed on the importance of understanding aspects of transfusions as time lapsed, but no difference was found in knowledge between those who took the course more recently and those who were up to two years post-module. The study's findings indicate that recognition of the importance of safe practice declines over time and thus also suggests that frequent refresher courses are important to maintain safe practice.