Fire and ant interactions mediated by honeydew and extrafloral nectar in an australian tropical savanna.

Fire is a major disturbance affecting ecosystems globally, but its impact on mutualisms has received minimal attention. Here, we use a long-term field experiment to investigate the impact of different fire regimes on globally important ant-honeydew and ant-extrafloral nectar (EFN) mutualistic interactions in an Australian tropical savanna. These interactions provide ants with a key energy source, while their plant and hemipteran hosts receive protection services. We examined ant interactions on species of Eucalyptus (lacking EFNs) and Acacia (with EFNs) in three replicate plots each of burning every 2 and 3 years early in the dry season, burning late in the dry season every 2 years, and unburnt for > 25 years. The proportions of plants with ant-honeydew interactions in Acacia (44.6%) and Eucalyptus (36.3%) were double those of Acacia plants with ant-EFN interactions (18.9%). The most common ants, representing 85% of all interactions, were behaviourally dominant species of Oecophylla, Iridomyrmex and Papyrius. Fire promoted the incidence of ant interactions, especially those involving EFNs on Acacia, which occurred on only 3% of plants in unburnt plots compared with 24% in frequently burnt plots. Fire also promoted the relative incidence of behaviourally dominant ants, which are considered the highest quality mutualists. Contrary to expectations, frequent fire did not result in a switching of behaviourally dominant ant partners from forest-adapted Oecophylla to arid-adapted Iridomyrmex. Our findings that frequent fire increases ant interactions mediated by honeydew and extrafloral nectar, and promotes the quality of ant mutualists, have important implications for protective services provided by ants in highly fire-prone ecosystems.

To What Extent are Food, Culture, Economics and the Natural Environment Reflected in the Language of the Australian and Brazilian Food-based Dietary Guidelines?

PURPOSE OF THE REVIEW: Our aim was to review literature describing language use in dietary guidelines and explore the extent to which food, culture, economics and the natural environment are reflected in the language of the Australian, compared to the Brazilian food-based dietary guidelines (FBDGs). RECENT FINDINGS: Australia's FBDGs are based on the best available scientific evidence and claim to "form a bridge between research and evidence-based advice to address the major health challenge of improving Australians' eating patterns". Brazil's FBDGs recognise reasons beyond health for people's food choices. Not a lot of attention has been paid to language use in dietary guidelines. The reviewed studies suggest that language in dietary guidelines should be unambiguous for consumers and evolve with national nutrition priorities. A notable difference between Australian and Brazilian FBDGs was that Australia centralised individuals and individual food groups, whereas Brazil placed people in an ecosystem. Inclusion of words that speak to how food is prepared and eaten, to expressions of culture and community, and to strategies people use for enhancing and protecting livelihoods and planetary health may enhance the relevance of future dietary guidelines.

How to distinguish climate sceptics, antivaxxers, and persistent sceptics: Evidence from a multi-country survey of public attitudes.

Distrust in science has been linked to scepticism over vaccines and climate change. Using data from nationally representative surveys administered in eight key countries for global efforts to mitigate climate change and COVID-19 (Australia, Brazil, China, India, Japan, South Africa, the UK and US), we find that distrust in scientists was an important predictor variable for most sceptics, who were sceptical of one issue but not both, in February 2021, when most countries had experienced their first wave of the pandemic. However, the association was significantly weaker among the segment of hardcore sceptics who were both climate sceptics and antivaxxers. We demonstrate that these individuals tended to possess many of the typical sceptic characteristics such as high distrust in social institutions and rightward political orientation, which are (collectively) suggestive of an underlying sceptic mindset rather than a specific distrust of scientists. Our results suggest that different types of sceptics necessitate different strategies to dispel scepticism.

Translating a Clinical Practice Guideline to a Portuguese, Spanish and English Practice Brief to promote exercise therapy for paediatric Charcot-Marie-Tooth disease.

BACKGROUND: Implementing scientific knowledge in clinical practice is a challenge. In this context, the effective dissemination of scientific findings is of utmost importance. OBJECTIVE: The aim of this study was to develop a Practice Brief in Portuguese, Spanish and English based on a previously published Clinical Practice Guideline to promote safe and effective exercise for children and young people with Charcot-Marie-Tooth disease and related neuropathies (CMT). METHODS: The Practice Brief was developed by eight health professionals from Brazil and Australia with English, Portuguese, and Spanish translations. The target audience chosen were the medical and allied health professionals involved in the rehabilitation of paediatric CMT. The content was based on the world first "Clinical Practice Guideline for the management of paediatric Charcot-Marie-Tooth disease" [1]. The layout of the Practice Brief was designed according to the criteria for the development of educational materials. The disclosure plan for the Practice Brief involves its publication on University and Hospital websites, www.ClinicalOutcomeMeasures.org and through social media platforms such as ResearchGate, Instagram, Facebook and Twitter, as well as in print format for CMT patient care centres. RESULTS: The English, Portuguese and Spanish versions of the Practice Brief is organised into six sections about assessment, exercise and physical rehabilitation, of which one is focused on progressive resistance exercises for the foot dorsiflexor muscles. CONCLUSION: We developed a Practice Brief in three languages (English, Portuguese and Spanish), synthesising the main recommendations for exercise and related rehabilitative therapies for paediatric CMT from a published clinical guideline.

Treatment-related Problems and Countermeasures for Patients Undergoing Maintenance Hemodialysis Following Tropical Cyclones: A Scoping Review.

BACKGROUND: Patients undergoing maintenance hemodialysis face heightened vulnerability during disasters like tropical cyclones, yet there is sparse research on their treatment-related challenges and countermeasures. This scoping review aims to highlight the issues maintenance hemodialysis patients encounter following tropical cyclones. METHODS: A systematic scoping review of 19 articles from 2000 to 2023 was conducted, evaluating eligibility against predefined criteria. RESULTS: Hemodialysis patients encounter substantial challenges during and after tropical cyclones in the United States, Puerto Rico, Australia, and Taiwan. Thematic analysis identified 3 themes related to "challenges" (Hemodialysis health-related challenges, socially relevant challenges, and challenges of management inefficiencies). "Recommendations" comprised 4 themes and 4 phases across the "mitigation phase" (fortifying healthcare infrastructure and mobilizing community-focused risk mitigation initiatives), "preparedness" (emergency plan development, training, and patient education), "response" (activation of emergency plans and providing emergency healthcare services), and "recovery" (intersectoral collaboration for recovery and rebuilding). CONCLUSION: This scoping review underscores challenges confronted by patients undergoing maintenance hemodialysis post-tropical cyclones, highlighting the urgent need for targeted strategies to ensure the continuity of dialysis care during and after such disasters.

Global Distribution and Diversity of Haloarchaeal pL6-Family Plasmids.

Australian isolates of Haloquadratum walsbyi, a square-shaped haloarchaeon, often harbor small cryptic plasmids of the pL6-family, approximately 6 kb in size, and five examples have been previously described. These plasmids exhibit a highly conserved gene arrangement and encode replicases similar to those of betapleolipoviruses. To assess their global distribution and recover more examples for analysis, fifteen additional plasmids were reconstructed from the metagenomes of seven hypersaline sites across four countries: Argentina, Australia, Puerto Rico, and Spain. Including the five previously described plasmids, the average plasmid size is 6002 bp, with an average G+C content of 52.5%. The tetramers GGCC and CTAG are either absent or significantly under-represented, except in the two plasmids with the highest %G+C. All plasmids share a similar arrangement of genes organized as outwardly facing replication and ATPase modules, but variations were observed in some core genes, such as F2, and some plasmids had acquired accessory genes. Two plasmids, pCOLO-c1 and pISLA-c6, shared 92.7% nt identity despite originating from Argentina and Spain, respectively. Numerous metagenomic CRISPR spacers matched sequences in the fifteen reconstructed plasmids, indicating frequent invasion of haloarchaea. Spacers could be assigned to haloarchaeal genera by mapping their associated direct repeats (DR), with half of these matching Haloquadratum. Finally, strand-specific metatranscriptome (RNA-seq) data could be used to demonstrate the active transcription of two pL6-family plasmids, including antisense transcripts.

Contrasting regulation of leaf gas exchange of semi-arid tree species under repeated drought.

Predicting how plants respond to drought requires an understanding of how physiological mechanisms and drought response strategies occur, as these strategies underlie rates of gas exchange and productivity. We assessed the response of 11 plant traits to repeated experimental droughts in four co-occurring species of central Australia. The main goals of this study were to: (i) compare the response to drought between species; (ii) evaluate whether plants acclimated to repeated drought; and (iii) examine the degree of recovery in leaf gas exchange after cessation of drought. Our four species of study were two tree species and two shrub species, which field studies have shown to occupy different ecohydrological niches. The two tree species (Eucalyptus camaldulensis Dehnh. and Corymbia opaca (D.J.Carr & S.G.M.Carr) K.D.Hill & L.A.S.Johnson) had large reductions in stomatal conductance (gs) values, declining by 90% in the second drought. By contrast, the shrub species (Acacia aptaneura Maslin & J.E.Reid and Hakea macrocarpa A.Cunn. ex R.Br.) had smaller reductions gs in the second drought of 52 and 65%, respectively. Only A. aptaneura showed a physiological acclimatation to drought due to small declines in gs versus á´ªpd (0.08 slope) during repeated droughts, meaning they maintained higher rates of gs compared with plants that only experienced one final drought (0.19 slope). All species in all treatments rapidly recovered leaf gas exchange and leaf mass per area following drought, displaying physiological plasticity to drought exposure. This research refines our understanding of plant physiological responses to recurrent water stress, which has implications for modelling of vegetation, carbon assimilation and water use in semi-arid environments under drought.

Pilot implementation of a telehealth course for health professions students.

OBJECTIVES: This study examined the level of technology proficiency amongst healthcare professions students. Additionally, the study provides an evaluation of the pilot implementation, as well as the effect of a 7-module telehealth course on the level of adoption and future use of telehealth amongst future Australian healthcare workforce. METHODS: Students from four health-sciences departments at the University of Melbourne, Australia, participated in this pilot study by completing the course and an online questionnaire, which included both structured and open-ended questions. The questionnaire included: 12-items on socio-demographic and Internet utilization; 34-items about acceptance and use of telehealth adapted from the Unified Theory of Acceptance and Use of Technology (UTAUT2) questionnaire; and 22-items about confidence in using the Internet and ICT, adapted from Technology Proficiency Self-Assessment Questionnaire for 21st Century Learning (TPSA-C-21). RESULTS: The evaluation included 26 students who expressed confidence in their Internet/ICT skills They showed enthusiasm for telehealth and recognized its potential benefits, but also emphasized the value of face-to-face interactions. They requested information on legal and aspects and additional learning. Post-test assessments indicated improvements in overall acceptance and use attitudes towards telehealth and on six dimensions of the UTAUT2 instrument. Participation in the course indicated improvements in students' overall acceptance and use attitudes and on six of the ten dimensions of the UTAUT2 instrument (p < 0.05). CONCLUSION: This preliminary evaluation indicated that the telehealth course was a positive and enjoyable learning experience for students with appropriate structure and information. The course was successful in improving students' acceptance and use of health technology. The study identified areas in which further development might be required. As such, the course represents a helpful approach for telehealth training among health professions students. Further evaluation with larger samples is required.

The genomes of all lungfish inform on genome expansion and tetrapod evolution.

The genomes of living lungfishes can inform on the molecular-developmental basis of the Devonian sarcopterygian fish-tetrapod transition. We de novo sequenced the genomes of the African (Protopterus annectens) and South American lungfishes (Lepidosiren paradoxa). The Lepidosiren genome (about 91 Gb, roughly 30 times the human genome) is the largest animal genome sequenced so far and more than twice the size of the Australian (Neoceratodus forsteri)1 and African2 lungfishes owing to enlarged intergenic regions and introns with high repeat content (about 90%). All lungfish genomes continue to expand as some transposable elements (TEs) are still active today. In particular, Lepidosiren's genome grew extremely fast during the past 100 million years (Myr), adding the equivalent of one human genome every 10 Myr. This massive genome expansion seems to be related to a reduction of PIWI-interacting RNAs and C2H2 zinc-finger and Krüppel-associated box (KRAB)-domain protein genes that suppress TE expansions. Although TE abundance facilitates chromosomal rearrangements, lungfish chromosomes still conservatively reflect the ur-tetrapod karyotype. Neoceratodus' limb-like fins still resemble those of their extinct relatives and remained phenotypically static for about 100 Myr. We show that the secondary loss of limb-like appendages in the Lepidosiren-Protopterus ancestor was probably due to loss of sonic hedgehog limb-specific enhancers.

Interdependent stigma of seeking mental health services: Examining a new scale across eight countries/regions.

Although the presence of mental health stigma associated with seeking help has been demonstrated in many parts of the world, this work has largely been from an independent perspective (i.e., "I will be perceived as crazy") rather than from an interdependent perspective (i.e., "My family will be viewed negatively"). Interdependent stigma of seeking help (i.e., the extent to which people believe their family would be devalued and shamed if they seek psychological help) may be an important type of stigma that has not been assessed. Based on self-construal theory, the present study sought to develop and evaluate the psychometric properties of an Interdependent Stigma of Seeking Help (ISSH) scale in eight different countries and regions (i.e., Australia, Brazil, Germany, Hong Kong, Taiwan, Türkiye, the UAE, the United States). Findings suggest that the psychometric properties of the eight-item ISSH are adequate for research purposes (a unidimensional scale with full invariance and internal consistency estimates from .84 to .94). The ISSH was moderately related to other measures of stigma and psychological distress. Some differences in the relationship with specific outcomes by country and region were found, and there were notable country differences in the latent mean levels of ISSH, with Hong Kong and Taiwan having the highest means, and Australia, the United States, and Brazil having the lowest levels. Results suggest that the ISSH could be used to help clarify the complex relationships between stigma and other variables of interest and might be useful in developing culturally relevant interventions. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

BCG vaccination of healthcare workers for protection against COVID-19: 12-month outcomes from an international randomised controlled trial.

OBJECTIVES: Bacille Calmette-Guérin (BCG) vaccine has immunomodulatory effects that may provide protection against unrelated infectious diseases. We aimed to determine whether BCG vaccination protects adults against COVID-19. DESIGN: Phase III double-blind randomised controlled trial. SETTING: Healthcare centres in Australia, Brazil, the Netherlands, Spain, and the United Kingdom during the COVID-19 pandemic. PARTICIPANTS: 3988 healthcare workers with no prior COVID-19 and no contraindication to BCG. INTERVENTION: Randomised 1:1 using a web-based procedure to receive a single 0.1 mL intradermal dose of BCG-Denmark (BCG group, n = 1999) or saline (placebo group, n = 1989). MAIN OUTCOME MEASURES: Difference in incidence of (i) symptomatic and (ii) severe COVID-19 during the 12 months following randomisation in the modified intention to treat (mITT) population (confirmed SARS-CoV-2 naïve at inclusion). RESULTS: Of the 3988 participants randomised, 3386 had a negative baseline SARS-CoV-2 test and were included in the mITT population. The 12-month adjusted estimated risk of symptomatic COVID-19 was higher in the BCG group (22.6%; 95% confidence interval [CI] 20.6 to 24.5%) compared with the placebo group (19.6%; 95% CI 17.6 to 21.5%); adjusted difference +3.0% points (95% CI 0.2 to 5.8%; p = 0.04). The 12-month adjusted estimated risk of severe COVID-19 (mainly comprising those reporting being unable to work for ≥3 consecutive days) was 11.0% in the BCG group (95% CI 9.5 to 12.4%) compared with 9.6% in the placebo group (95% CI 8.3 to 11.1%); adjusted difference +1.3% points (95% CI -0.7 to 3.3%, p = 0.2). Breakthrough COVID-19 (post COVID-19 vaccination) and asymptomatic SARS-CoV-2 infections were similar in the two groups. There were 18 hospitalisations due to COVID-19 (11 in BCG group, 7 in placebo group; adjusted hazard ratio 1.56, 95% CI 0.60 to 4.02, p = 0.4) and two deaths due to COVID-19, both in the placebo group. CONCLUSIONS: Compared to placebo, vaccination with BCG-Denmark increased the risk of symptomatic COVID-19 over 12 months among healthcare workers and did not decrease the risk of severe COVID-19 or post-vaccination breakthrough COVID-19. TRIAL REGISTRATION: ClinicalTrials.gov NCT04327206.

What attributes of digital devices are important to clinicians in rehabilitation? A cross-cultural best-worst scaling study.

BACKGROUND: Digital interventions are becoming increasingly popular in rehabilitation. Understanding of device features which impact clinician adoption and satisfaction is limited. Research in the field should be conducted across diverse settings to ensure digital interventions do not exacerbate healthcare inequities. OBJECTIVE: This study aimed to understand rehabilitation clinicians' preferences regarding device attributes and included a cross-cultural comparison. MATERIALS AND METHODS: Choice experiment methodology (best-worst scaling) was used to survey rehabilitation clinicians across Australia and Brazil. Participants completed 10 best-worst questions, choosing the most and least important device attributes from subsets of 31 attributes in a partially balanced block design. Results were analysed using multinomial models by country and latent class. Attribute preference scores (PS) were scaled to 0-100 (least to most important). RESULTS: A total of 122 clinicians from Brazil and 104 clinicians from Australia completed the survey. Most respondents were physiotherapists (83%) working with neurological populations (51%) in the private/self-employed sector (51%) who had experience using rehabilitation devices (87%). Despite preference heterogeneity across country and work sector (public/not-for-profit versus private/self-employed/other), clinicians consistently prioritised patient outcomes (PS 100.0, 95%CI: 86.2-100.0), patient engagement (PS 93.9, 95%CI: 80.6-94.2), usability (PS 81.3, 95%CI: 68.8-82.5), research evidence (PS 80.4, 95%CI: 68.1-81.7) and risk (PS 75.7, 95%CI: 63.8-77.3). In Australia, clinicians favoured device attributes which facilitate increased therapy dosage (PS 79.2, 95%CI: 62.6-81.1) and encourage patient independent practice (PS 66.8, 95%CI: 52.0-69.2). In Brazil, clinicians preferred attributes enabling device use for providing clinical data (PS 67.6, 95%CI: 51.8-70.9) and conducting clinical assessments (PS 65.6, 95%CI: 50.2-68.8). CONCLUSION: Clinicians prioritise patients' needs and practical application over technical aspects of digital rehabilitation devices. Contextual factors shape clinician preferences rather than individual clinician characteristics. Future device design and research should consider preferences and influences, involving diverse stakeholders to account for context-driven variations across cultures and healthcare settings.

Condom Failure Among HIV-Negative Men in Serodiscordant Relationships in Australia, Brazil, and Thailand.

Condoms continue to be used by many gay, bisexual, and other men who have sex with men (GBM) to reduce the risk of HIV transmission. However this is impacted by condom failure events, defined here as condom breakage and slippage. In a prospective, observational cohort study of 343 HIV serodiscordant male couples recruited through high HIV caseload clinics and hospitals between 2012 and 2016 in Australia, Brazil, and Thailand, condom failure rates and associated factors were analysed, including with the study partner versus other sexual partners. There were 717 reported instances of condom failure from an estimated total of 25,831 sex acts with condoms, from over 588.4 participant years of follow up. Of the HIV-negative partners (n = 343) in the study, more than a third (n = 117, 36.7%) reported at least one instance of condom failure with any partner type during study follow-up. Condom failure with their study partner was reported by 91/343 (26.5%) HIV-negative partners, compared with 43/343 (12.5%) who reported condom failure with other partners. In total, there were 86 events where the HIV-negative partner experienced ano-receptive condom failure with ejaculation, representing 12.0% of all failure events. In multivariable analysis, compared to Australia, HIV-negative men in Brazil reported a higher incidence risk rate of condom failure (IRR = 1.64, 95%CI 1.01-2.68, p = 0.046) and HIV-negative men who reported anal sex with other partners reported an increased risk of condom failure compared with men who only had sex with their study partner (IRR = 1.89, 95%CI 1.08-3.33, p = 0.025). Although at least one event of condom failure was reported by a significant proportion of participants, overall condom failure events represented a small proportion of the total condom protected sex acts.

Mental Health First Aid Guidelines for Argentina and Chile: Report on the study to adapt the Australian guidelines / Guías de primeros auxilios en salud mental para Argentina y Chile: un reporte del estudio de adaptación de las guías australianas.

Background: Mental health problems represent a growing global concern. This has intensified since the coronavirus pandemic and is also partly due to greater awareness of the extent of mental health problems and the lack of attention they have received over time. In many high-income countries, increases in service provision have been accompanied by efforts to increase the mental health literacy of the general population. One example of this in Australia, is the mental health first aid training program which is informed by the mental health first aid guidelines created to promote mental health literacy among the general population, reduce stigma, and enable lay people to provide timely support, and facilitate access to health services for a person developing a mental health problem or in a mental health crisis. Methods: Between March 2020 and May 2023, a consortium of researchers from Australia, Argentina and Chile carried out the cultural adaptation of five guidelines (drinking problems, depression, suicide risk, trauma, and psychosis) using the Delphi consensus methodology. Health professionals with expertise in each of the topics and people with lived experience (their own or as informal caregivers) from Argentina and Chile were grouped into separate panels. Over two survey rounds, they evaluated the items from the Australian guidelines and gave their opinion on the importance of their inclusion in the local guidelines. Additionally, they suggested items not included in the Australian guidelines. Results: This report presents the details of the methodology used and the most significant results of each of the five adapted guidelines, particularly, those of relevance to the Argentinian and Chilean context. The general acceptance of the role of the first aider stands out as an important outcome. However, in comparison to Australia, the first aider's role was reduced and the health professional role was expanded. Self-help recommendations were typically not endorsed by local experts, suggesting skepticism toward these strategies. Other specific recommendations for each of the guidelines are described and analyzed in this report. Conclusions: A study of the implementation of training courses based on these guidelines is required to make the necessary adaptations and determine their local usefulness.

Introducción: Los problemas de salud mental en la comunidad representan una preocupación global creciente, intensificada desde la pandemia por coronavirus y gracias a una mayor conciencia respecto de su extensión y del bajo nivel de atención que recibieron a lo largo del tiempo. En Australia se crearon las primeras guías de primeros auxilios en salud mental para promover un mayor conocimiento de temas de salud mental en la población general, brindar apoyo oportuno, facilitar el acceso a los servicios de salud por esta problemática, y disminuir el estigma asociado al padecimiento mental. Método: Un consorcio de investigadores de Australia, Argentina y Chile, entre marzo de 2020 y mayo de 2023, realizó la adaptación cultural de cinco guías (consumo problemático de alcohol, depresión, riesgo de suicidio, trauma, y psicosis) siguiendo la metodología de consenso Delphi. Profesionales expertos en cada uno de los temas y personas con experiencia vivida  (propia o como cuidadores informales) conformaron sendos paneles con miembros de Argentina y de Chile. En dos rondas de consulta evaluaron los ítems provenientes de las guías de Australia y opinaron sobre su pertinencia para formar parte de las guías locales. Adicionalmente, sugirieron ítems que no estaban contemplados en las guías australianas. Resultados: El presente reporte presenta el detalle de la metodología empleada y los resultados más significativos de cada una de las cinco guías adaptadas y, particularmente, su aplicabilidad para Argentina y Chile. Sobresale la aceptación general del rol del asistente de primeros auxilios en salud mental, aunque también con limitaciones en el rol y funciones en favor del privilegio de profesionales de la salud. Las recomendaciones de auto-ayuda fueron mayoritariamente no aceptadas por los expertos locales, sugiriendo desconfianza respecto de estas estrategias. Otras recomendaciones específicas para cada una de las guías se describen y analizan en este reporte. Conclusiones: Se requiere un estudio de la implementación de la capacitación en base a estas guías para realizar ulteriores adaptaciones y determinar su utilidad local.

Genomic Regions Associated with Resistance to Gastrointestinal Parasites in Australian Merino Sheep.

The objective of this study was to identify genomic regions and genes associated with resistance to gastrointestinal nematodes in Australian Merino sheep in Uruguay, using the single-step GWAS methodology (ssGWAS), which is based on genomic estimated breeding values (GEBVs) obtained from a combination of pedigree, genomic, and phenotypic data. This methodology converts GEBVs into SNP effects. The analysis included 26,638 animals with fecal egg count (FEC) records obtained in two independent parasitic cycles (FEC1 and FEC2) and 1700 50K SNP genotypes. The comparison of genomic regions was based on genetic variances (gVar(%)) explained by non-overlapping regions of 20 SNPs. For FEC1 and FEC2, 18 and 22 genomic windows exceeded the significance threshold (gVar(%) ≥ 0.22%), respectively. The genomic regions with strong associations with FEC1 were located on chromosomes OAR 2, 6, 11, 21, and 25, and for FEC2 on OAR 5, 6, and 11. The proportion of genetic variance attributed to the top windows was 0.83% and 1.9% for FEC1 and FEC2, respectively. The 33 candidate genes shared between the two traits were subjected to enrichment analysis, revealing a marked enrichment in biological processes related to immune system functions. These results contribute to the understanding of the genetics underlying gastrointestinal parasite resistance and its implications for other productive and welfare traits in animal breeding programs.

Fish and tips: Historical and projected changes in commercial fish species' habitat suitability in the Southern Hemisphere.

Global warming has significantly altered fish distribution patterns in the ocean, shifting towards higher latitudes and deeper waters. This is particularly relevant in high-latitude marine ecosystems, where climate-driven environmental changes are occurring at higher rates than the global average. Species Distribution Models (SDMs) are increasingly being used for predicting distributional shifts in habitat suitability for marine species as a response to climate change. Here, we used SDMs to project habitat suitability changes for a range of high-latitude, pelagic and benthopelagic commercial fish species and crustaceans (10 species); from 1850 to two future climate change scenarios (SSP1-2.6: low climate forcing; and SSP5-8.5: high climate forcing). The study includes 11 Large Marine Ecosystems (LME) spanning South America, Southern Africa, Australia, and New Zealand. We identified declining and southward-shifting patterns in suitable habitat areas for most species, particularly under the SSP5-8.5 scenario and for some species such as Argentine hake (Merluccius hubbsi) in South America, or snoek (Thyrsites atun) off Southern Africa. Geographical constraints will likely result in species from Southern Africa, Australia, and New Zealand facing the most pronounced habitat losses due to rising sea surface temperatures (SST). In contrast, South American species might encounter greater opportunities for migrating southward. Additionally, the SSP5-8.5 scenario predicts that South America will be more environmentally stable compared to other regions. Overall, our findings suggest that the Patagonian shelf could serve as a climate refuge, due to higher environmental stability highlighting the importance of proactive management strategies in this area for species conservation. This study significantly contributes to fisheries and conservation management, providing valuable insights for future protection efforts in the Southern Hemisphere.

Short-term Exposure to Wildfire-Specific PM2.5 and Diabetes Hospitalization: A Study in Multiple Countries and Territories.

OBJECTIVE: To evaluate associations of wildfire fine particulate matter ≤2.5 mm in diameter (PM2.5) with diabetes across multiple countries and territories. RESEARCH DESIGN AND METHODS: We collected data on 3,612,135 diabetes hospitalizations from 1,008 locations in Australia, Brazil, Canada, Chile, New Zealand, Thailand, and Taiwan during 2000-2019. Daily wildfire-specific PM2.5 levels were estimated through chemical transport models and machine-learning calibration. Quasi-Poisson regression with distributed lag nonlinear models and random-effects meta-analysis were applied to estimate associations between wildfire-specific PM2.5 and diabetes hospitalization. Subgroup analyses were by age, sex, location income level, and country or territory. Diabetes hospitalizations attributable to wildfire-specific PM2.5 and nonwildfire PM2.5 were compared. RESULTS: Each 10 µg/m3 increase in wildfire-specific PM2.5 levels over the current day and previous 3 days was associated with relative risks (95% CI) of 1.017 (1.011-1.022), 1.023 (1.011-1.035), 1.023 (1.015-1.032), 0.962 (0.823-1.032), 1.033 (1.001-1.066), and 1.013 (1.004-1.022) for all-cause, type 1, type 2, malnutrition-related, other specified, and unspecified diabetes hospitalization, respectively. Stronger associations were observed for all-cause, type 1, and type 2 diabetes in Thailand, Australia, and Brazil; unspecified diabetes in New Zealand; and type 2 diabetes in high-income locations. An estimate of 0.67% (0.16-1.18%) and 1.02% (0.20-1.81%) for all-cause and type 2 diabetes hospitalizations were attributable to wildfire-specific PM2.5. Compared with nonwildfire PM2.5, wildfire-specific PM2.5 posed greater risks of all-cause, type 1, and type 2 diabetes and were responsible for 38.7% of PM2.5-related diabetes hospitalizations. CONCLUSIONS: We show the relatively underappreciated links between diabetes and wildfire air pollution, which can lead to a nonnegligible proportion of PM2.5-related diabetes hospitalizations. Precision prevention and mitigation should be developed for those in advantaged communities and in Thailand, Australia, and Brazil.

Wellbeing in Children and Adolescents with Fontan Physiology.

OBJECTIVE: To assess health-related quality of life (HRQOL) and global quality of life (QOL) in children and adolescents with Fontan physiology and identify key predictors influencing these outcomes. STUDY DESIGN: Cross-sectional analysis of 73 children and adolescents enrolled in the Australia and New Zealand Fontan Registry aged 6-17 years, at least 12 months post-Fontan operation. Assessments included the Pediatric Quality of Life Inventory (PedsQL) for HRQOL and a developmentally-tailored visual analogue scale (0-10) for global QOL, along with validated sociodemographic, clinical, psychological, relational, and parental measures. Clinical data were provided by the Australia and New Zealand Fontan Registry. RESULTS: Participants (mean age: 11.5 ± 2.6 years, 62% male) reported lower overall HRQOL (P < .001), and lower scores across all HRQOL domains (all P < .0001), compared with normative data. Median global QOL score was 7.0 (IQR 5.8-8.0), with most participants (79%) rating their global QOL ≥6. Anxiety and depressive symptoms requiring clinical assessment were reported by 21% and 26% of participants, respectively. Age, sex, and perceived seriousness of congenital heart disease explained 15% of the variation in HRQOL scores, while depressive symptoms and treatment-related anxiety explained an additional 37% (final model: 52% of variance explained). For global QOL, sociodemographic and clinical factors explained 13% of the variance in scores, while depressive symptoms explained a further 25% (final model: 38% of variance explained). Parental factors were not associated with child QOL outcomes. CONCLUSIONS: Children and adolescents with Fontan physiology experience lower HRQOL than community-based norms, despite reporting fair overall QOL. Psychological factors predominantly influenced QOL outcomes, indicating strategies to bolster psychological health could improve QOL in this population.

Epidemiology of Renal Replacement Therapy for Critically Ill Patients across Seven Health Jurisdictions.

INTRODUCTION: Acute kidney injury (AKI) requiring treatment with renal replacement therapy (RRT) is a common complication after admission to an intensive care unit (ICU) and is associated with significant morbidity and mortality. However, the prevalence of RRT use and the associated outcomes in critically patients across the globe are not well described. Therefore, we describe the epidemiology and outcomes of patients receiving RRT for AKI in ICUs across several large health system jurisdictions. METHODS: Retrospective cohort analysis using nationally representative and comparable databases from seven health jurisdictions in Australia, Brazil, Canada, Denmark, New Zealand, Scotland, and the USA between 2006 and 2023, depending on data availability of each dataset. Patients with a history of end-stage kidney disease receiving chronic RRT and patients with a history of renal transplant were excluded. RESULTS: A total of 4,104,480 patients in the ICU cohort and 3,520,516 patients in the mechanical ventilation cohort were included. Overall, 156,403 (3.8%) patients in the ICU cohort and 240,824 (6.8%) patients in the mechanical ventilation cohort were treated with RRT for AKI. In the ICU cohort, the proportion of patients treated with RRT was lowest in Australia and Brazil (3.3%) and highest in Scotland (9.2%). The in-hospital mortality for critically ill patients treated with RRT was almost fourfold higher (57.1%) than those not receiving RRT (16.8%). The mortality of patients treated with RRT varied across the health jurisdictions from 37 to 65%. CONCLUSION: The outcomes of patients who receive RRT in ICUs throughout the world vary widely. Our research suggests that differences in access to and provision of this therapy are contributing factors.

Photoaging and cosmeceutical solutions in sun-overexposed countries: The experience of Australia and Brazil.

Skin aging is the result of physiological changes determined by genetically driven processes and intrinsic factors, and exacerbated by a combination of multiple environmental factors, the main one being sun exposure. The effects of photoaging are particularly apparent on the face, where the appearance of aging signs can have a significant impact on the emotions conveyed and well-being. Photoprotection and facial skin care for managing photoaging signs are thus of particular importance for both physical and mental health. Countries, like Australia and Brazil, where the level of sun exposure is high and the populations have predominantly outdoor lifestyles, are particularly aware of the harms of photoaging and have implemented several measures to help reduce the risk of skin cancer in their populations. However, sun-seeking behaviours are difficult to change, and it takes time before interventions provide perceptible results. Australia still has some of the highest skin cancer incidence and mortality rates in the world. Solutions that target individuals can also be used for minimizing the clinical signs of facial aging and for improving skin quality, with the ultimate aim being not only to improve the appearance of the skin but also to mitigate the occurrence of pre-malignant and malignant lesions. This review summarizes the features of facial skin photoaging in photo-exposed populations, based on evidence gained from studies of Australian individuals, and discusses the various available solutions for skin photoaging, in particular those that are most popular in Brazil, which is a country with many years of experience in managing photoaged skin.