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AIMS: We assessed the mental health effects of Australia's 2019-2020 bushfires 12-18 months later, predicting psychological distress and positive psychological outcomes from bushfire exposure and a range of demographic variables, and seeking insights to enhance disaster preparedness and resilience planning for different profiles of people. METHODS: We surveyed 3083 bushfire-affected and non-affected Australian residents about their experiences of bushfire, COVID-19, psychological distress (depression, anxiety, stress, post-traumatic stress disorder) and positive psychological outcomes (resilient coping, wellbeing). RESULTS: We found high rates of distress across all participants, exacerbated by severity of bushfire exposure. For people who were bushfire-affected, being older, having less financial stress, and having no or fewer pre-existing mental disorders predicted both lower distress and higher positive outcomes. Being male or having less income loss also predicted positive outcomes. Severity of exposure, higher education and higher COVID-19-related stressors predicted both higher distress and higher positive outcomes. Pre-existing physical health diagnosis and previous bushfire experience did not significantly predict distress or positive outcomes. RECOMMENDATIONS: To promote disaster resilience, we recommend investment in mental health, particularly for younger adults and for those in rural and remote areas. We also recommend investment in mechanisms to protect against financial distress and the development of a broader definition of bushfire-related impacts than is currently used to capture brushfires' far-reaching effects.
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COVID-19 , Desastres , Resiliencia Psicológica , Adulto , Humanos , Masculino , Femenino , Salud Mental , Australia/epidemiología , Estrés PsicológicoRESUMEN
Most people eat meat, yet report valuing the environment, animal life, and their health, which contradicts this dietary behaviour. The psychological discomfort aroused by this value-behaviour inconsistency, and the strategies meat eaters use to resolve this unpleasant state, is termed the 'meat paradox'. Vegetarians eschew meat consumption, but the negative implications of dairy are comparable to meat. We investigated the 'dairy paradox' in a sample of vegetarians (N = 378) using an experimental design. Specifically, we tested whether vegetarians experienced cognitive dissonance after reading about the environmental, animal welfare, and health impacts of dairy consumption when compared to a control group not exposed to this information. Then, we examined to what extent perceiving dairy consumption as Natural, Necessary, Normal, Nice, or Neglectable, and denial of cows' mental states (Experience or Agency) predicted reduced cognitive dissonance. Vegetarians in the dissonance-induction condition reported experiencing significantly greater dissonance, though they more strongly rejected the justification strategies. Instead, they reported greater intentions to reduce their dairy consumption than vegetarians in the control condition. Rather than replicating findings from the meat paradox literature, these results suggest that vegetarians respond to uncomfortable feelings about their value-behaviour conflict with a greater intention to abandon the incongruent behaviour, rather than endorsing the cognitions that justify it. This research provides evidence that vegetarians experience a dairy paradox. Given the success of our study in shifting participants away from behavioural justification and toward behavioural change intentions, our findings can help guide the design of interventions seeking to reduce dairy consumption.
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Disonancia Cognitiva , Productos Lácteos , Dieta Vegetariana , Vegetarianos , Humanos , Femenino , Masculino , Vegetarianos/psicología , Adulto , Dieta Vegetariana/psicología , Adulto Joven , Persona de Mediana Edad , Carne , Adolescente , Animales , Conducta Alimentaria/psicología , Bienestar del Animal , Preferencias Alimentarias/psicología , IntenciónRESUMEN
BACKGROUND: Worsening environmental conditions may amplify people's emotional responses to an environmental crisis (eco-anxiety). In Portugal, young people seem to be especially concerned about climate change. However, this phenomenon needs to be interpreted using accurate instruments. Thus, this study aimed to validate the Portuguese version of the Hogg Eco-Anxiety Scale (HEAS) in young adults and examine the associations among eco-anxiety, sociodemographic characteristics, and pro-environmental behaviours. METHODS: A survey was administered to 623 Portuguese university students aged between 18 and 25 years. The survey included our Portuguese translation of the HEAS (obtained through a back-translation and pretesting process), a sociodemographic assessment, and questions related to pro-environmental behaviours. Confirmatory factor analysis was conducted to assess the construct validity of the Portuguese version of the HEAS, and global fit indices were used to assess whether the original four-dimensional structure of the scale was reproduced. The reliability of the Portuguese version of the HEAS was evaluated by Cronbach's alpha and the intraclass correlation coefficient. Measurement invariance examined sex differences in scale interpretation. Linear regressions were used to detect whether sociodemographic variables predict eco-anxiety and whether eco-anxiety predicts pro-environmental behaviours. RESULTS: The factorial structure of the original scale was replicated in the Portuguese version of the HEAS, showing good internal consistency, reliability over time and strict invariance between men and women. A higher paternal education level predicted greater eco-anxiety in children. Two dimensions of eco-anxiety-namely, rumination and anxiety about personal impacts on the environment-predicted higher engagement in pro-environmental behaviours. CONCLUSIONS: The translated scale is an appropriate tool to measure eco-anxiety in the Portuguese context and should be used to collect evidence to drive environmental and health policies. An individual's education level should be considered a determinant of their emotional response to environmental conditions. Importantly, eco-anxiety can act as a protective emotional response to preserving the planet.
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Ansiedad , Traducciones , Niño , Humanos , Masculino , Femenino , Adulto Joven , Adolescente , Adulto , Portugal , Reproducibilidad de los Resultados , Ansiedad/epidemiología , Encuestas y Cuestionarios , Psicometría/métodosRESUMEN
PURPOSE: As environmental disasters become more common and severe due to climate change, there is a growing need for strategies to bolster recovery that are proactive, cost-effective, and which mobilise community resources. AIMS: We propose that building social group connections is a particularly promising strategy for supporting mental health in communities affected by environmental disasters. METHODS: We tested the social identity model of identity change in a disaster context among 627 people substantially affected by the 2019-2020 Australian fires. RESULTS: We found high levels of post-traumatic stress, strongly related to severity of disaster exposure, but also evidence of psychological resilience. Distress and resilience were weakly positively correlated. Having stronger social group connections pre-disaster was associated with less distress and more resilience 12-18 months after the disaster, via three pathways: greater social identification with the disaster-affected community, greater continuity of social group ties, and greater formation of new social group ties. New group ties were a mixed blessing, positively predicting both resilience and distress. CONCLUSIONS: We conclude that investment in social resources is key to supporting mental health outcomes, not just reactively in the aftermath of disasters, but also proactively in communities most at risk.
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BACKGROUND: Adults with low income have limited access to valuable health resources thus presenting a major obstacle to improving their health. Although there are diverse health enhancement programs for low-income populations, relatively few focus on emotional support despite the positive impact of perceived emotional support on health. This study examines the interaction of perceived emotional support and income on the overall health status and psychological well-being of adults with low income. METHODS: Secondary data were collected from the Health Information National Trends Survey (Cycle 4). A total of 3677 respondents completed the survey, including 889 adults with low income, as determined by their eligibility for the Supplemental Nutrition Assistance Program (SNAP). Ordinary-least square hierarchical regression analysis was conducted to test main and interaction effects. RESULTS: Perceived emotional support moderated the relationship between SNAP eligibility and health outcomes. Lacking an emotional support network has greater detrimental effects on the overall health and psychological well-being of people with low income compared to similar persons with higher income. CONCLUSION: These findings suggest the need for health programs that enhance access to emotional support for adults with low income.
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Asistencia Alimentaria , Pobreza , Adulto , Pan , Humanos , Renta , Masculino , Evaluación de Resultado en la Atención de SaludRESUMEN
Student Health Centers (SHCs) are important resources on U.S. college campuses. In light of recent calls for creating more opportunities for health care services to young men and sexual/gender minorities, this content analytic study evaluated how sexual health information and resources are communicated on SHC websites. Utilizing a stratified random sample of 400 U.S. colleges/universities, we assessed how often sexual health is explicitly labeled for particular groups, the types of sexual health topics on SHC websites, the depth of sexual health information, and the sexual health resources offered on SHC websites. Our findings revealed that women's health webpages far outnumbered men's health webpages, sexual health topics were more common on women's health webpages, and sexual health topics were covered at greater depth on women's health webpages compared to men's health webpages. Similar disparities were found for sexual/gender minorities. General sexual health webpages on SHC websites addressed significantly more sexual health topics in greater depth and offered more sexual health resources than LGBTQ health webpages. The practical implications for college student health and potential health disparities are discussed.
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Información de Salud al Consumidor/estadística & datos numéricos , Disparidades en el Estado de Salud , Salud Sexual , Servicios de Salud para Estudiantes , Estudiantes/estadística & datos numéricos , Adolescente , Adulto , Femenino , Humanos , Masculino , Factores Sexuales , Minorías Sexuales y de Género/estadística & datos numéricos , Estados Unidos , Universidades , Adulto JovenRESUMEN
Patient-provider relationships can either impede or encourage patient utilization of healthcare services and adherence to treatment. Given the significant health disparities found among low-income African Americans, it is imperative to understand this population's experiences with healthcare providers and how to improve their patient-provider relationships in order to increase successful treatment outcomes. Relationship management is a well-tested theory that examines factors that improve outcomes between organizations and their publics. This exploratory study uses relationship management theory to understand how African Americans who are medically underserved perceive the quality of their relationships with healthcare providers. Focus groups were held with low-income African American adults. Findings reveal that communication is key to improving trust, but other characteristics needed for a quality relationship were lacking, particularly perceived commitment, which impedes better healthcare. The low-income, medically underserved context influenced participant perceptions of factors such as commitment, but participants also expressed efficacy in feeling in control of healthcare situations, which may help them maintain quality relationships. This study offers theoretical elaboration as well as practical suggestions for how providers may wish to address an important population of patients through communication.
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Negro o Afroamericano , Pobreza , Adulto , Comunicación , Personal de Salud , Audición , HumanosRESUMEN
While cigarette smoking is decreasing among young adults, rates of nicotine consumption through other devices, most notably electronic cigarettes, are on the rise. Framed by communication theory of identity, this study examines young adult smokers' experiences with relational others in regard to their smoking. Focus group discussions and individual interviews convened with 20 young adult cigarette and electronic cigarette smokers revealed identity gaps implicating the relational layer of identity, including personal-relational, enacted-relational, and personal-enacted-relational identity gaps. Participants used communicative and behavioral strategies to manage relational discrepancies. The documented identity gaps and management strategies present opportunities for targeted smoking cessation interventions that amplify dissonance created through identity gaps as a motivational tactic.
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Relaciones Interpersonales , Fumadores/psicología , Adolescente , Sistemas Electrónicos de Liberación de Nicotina , Femenino , Grupos Focales , Humanos , Entrevistas como Asunto , Masculino , Adulto JovenRESUMEN
College males represent an important and overlooked catch-up population in the pursuit of human papillomavirus (HPV) prevention. An in-depth understanding of college males' health beliefs about HPV and HPV prevention can guide the development of HPV health promotion messages targeted toward college males. We convened 9 focus groups among 84 college-aged males to discuss their perceptions of benefits and barriers toward HPV prevention 4 years after vaccine approval. Through participants' discourse, we identified health beliefs that continue to endure as barriers to HPV prevention (e.g., lack of knowledge/awareness, apathy, dismissiveness, stigma, practical barriers, and skepticism). Prevention and protection endure as perceived benefits to HPV prevention. We also identified novel college male health beliefs that have emerged since vaccine approval and hold great potential for the development of more effective health messaging. One novel barrier that emerged was the perception that it was "too late" for college males to benefit from the vaccine. Several novel benefits also emerged including a perception of wider social benefit beyond the self and partner, reduced worry and anticipated regret, and the belief that "there is no reason not to [vaccinate]." This study was guided by the health belief model (HBM) and implications are discussed.
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Conocimientos, Actitudes y Práctica en Salud , Vacunas contra Papillomavirus/administración & dosificación , Vacunación , Grupos Focales , Humanos , Masculino , Infecciones por Papillomavirus/prevención & control , Adulto JovenRESUMEN
Throughout the literature, there are assertions that those endorsing conservative ideologies reject the science and solutions of climate change due to perceived threat. That is, they fear that accepting climate change means accepting problems with a favoured socioeconomic system and supporting action on climate change threatens to disrupt these systems. We draw together lines of research and reasoning on this topic to outline three key predictions this perspective makes about the drivers of conservative denial of climate change and opposition to climate policy. The first is that an asymmetry exists in climate-related threat perceptions, whereby greater endorsement of conservative ideology predicts lower perceived threat from climate change and greater perceived threat from climate reform. Second, climate-related threat perceptions are multifaceted, such that threats to economic and cultural well-being can be experienced, at personal or collective levels. Third, the asymmetry in threat perceptions explains conservatives' lower support for pro-climate reforms. We then specify a new integrated threat model of climate change attitudes, review the current evidence for and against each prediction in this model and outline ways to interrogate these theoretical predictions with empirical research. Doing so will advance understanding of the underpinnings of ideological disagreement on climate change.
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Cambio Climático , Predominio Social , Humanos , Autoritarismo , Actitud , MiedoRESUMEN
Background: Early assessment of antibody off-target binding is essential for mitigating developability risks such as fast clearance, reduced efficacy, toxicity, and immunogenicity. The baculovirus particle (BVP) binding assay has been widely utilized to evaluate polyreactivity of antibodies. As a complementary approach, computational prediction of polyreactivity is desirable for counter-screening antibodies from in silico discovery campaigns. However, there is a lack of such models. Methods: Herein, we present the development of an ensemble of three deep learning models based on two pan-protein foundational protein language models (ESM2 and ProtT5) and an antibody-specific protein language model (PLM) (Antiberty). These models were trained in a transfer learning network to predict the outcomes in the BVP assay and the bovine serum albumin binding assay, which was developed as a complement to the BVP assay. The training was conducted on a large dataset of antibody sequences augmented with experimental conditions, which were collected through a highly efficient application system. Results: The resulting models demonstrated robust performance on canonical mAbs (monospecific with heavy and light chain), bispecific Abs, and single-domain Fc (VHH-Fc). PLMs outperformed a model built using molecular descriptors calculated from AlphaFold 2 predicted structures. Embeddings from the antibody-specific and foundational PLMs resulted in similar performance. Conclusion: To our knowledge, this represents the first application of PLMs to predict assay data on bispecifics and VHH-Fcs.
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Witnessing degradation and loss to one's home environment can cause the negative emotional experience of solastalgia. We review the psychometric properties of the 9-item Solastalgia subscale from the Environmental Distress Scale (Higginbotham et al. (EcoHealth 3:245-254, 2006)). Using data collected from three large, independent, adult samples (N = 4229), who were surveyed soon after the 2019/20 Australian bushfires, factor analyses confirmed the scale's unidimensionality, while analyses derived from Item Response Theory highlighted the poor psychometric performance and redundant content of specific items. Consequently, we recommend a short-form scale consisting of five items. This Brief Solastalgia Scale (BSS) yielded excellent model fit and internal consistency in both the initial and cross-validation samples. The BSS and its parent version provide very similar patterns of associations with demographic, health, life satisfaction, climate emotion, and nature connectedness variables. Finally, multi-group confirmatory factor analysis demonstrated comparable construct architecture (i.e. configural, metric, and scalar invariance) across validation samples, gender categories, and age. As individuals and communities increasingly confront and cope with climate change and its consequences, understanding related emotional impacts is crucial. The BSS promises to aid researchers, decision makers, and practitioners to understand and support those affected by negative environmental change.
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Psicometría , Humanos , Masculino , Femenino , Adulto , Persona de Mediana Edad , Australia , Encuestas y Cuestionarios , Reproducibilidad de los Resultados , Análisis Factorial , Anciano , Estrés Psicológico , Adulto JovenRESUMEN
BACKGROUND: Eco-anxiety is increasingly recognized as a shared experience by many people internationally, encompassing fear of environmental catastrophe and anxiety about ecological crises. Despite its importance in the context of the changing climate, measures for this construct are still being developed in languages other than English. METHODS: To contribute to global eco-anxiety research, we translated the Hogg Eco-Anxiety Scale (HEAS) into Spanish, creating the HEAS-SP. We validated this measure in samples from both Argentina (n = 990) and Spain (n = 548), performing measurement invariance and confirmatory factor analyses. Internal consistency of the scale and score stability over time were investigated through reliability analyses. Differences in eco-anxiety across sociodemographic variables were explored through Student's t-tests and Pearson's r tests. RESULTS: The four-factor model of the HEAS-SP comprising affective and behavioural symptoms, rumination, and anxiety about personal impact demonstrated excellent model fit. We found good internal consistency for each subscale, and established measurement invariance between Spanish and Argentine samples, as well as across genders and participants' age. Spanish participants reported higher scores on the affective symptoms and personal impact anxiety factors compared to the Argentinian sample. Also, men reported lower levels than women on the subscales of affective symptoms, rumination, and personal impact anxiety. It was found that the relationship between both age and personal impact anxiety and age and affective symptoms varies significantly depending on the gender of the individuals. Younger participants tended to report higher scores on most dimensions of eco-anxiety. CONCLUSIONS: These findings enhance the global initiative to investigate, explore and therefore comprehend eco-anxiety by introducing the first valid and reliable Spanish-language version of this psychometric instrument for its use within Spanish and Argentinian populations. This study augments the body of evidence supporting the robust psychometric properties of the HEAS, as demonstrated in prior validations for Australian, Turkish, Portuguese, German, French, and Italian populations.
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Ansiedad , Psicometría , Humanos , Argentina , Masculino , Femenino , España , Adulto , Ansiedad/psicología , Ansiedad/diagnóstico , Persona de Mediana Edad , Psicometría/instrumentación , Reproducibilidad de los Resultados , Adulto Joven , Adolescente , Anciano , Escalas de Valoración Psiquiátrica/normas , Salud Mental , TraducciónRESUMEN
Mindfulness witnessed a substantial popularity surge in the past decade, especially as digitally self-administered interventions became available at relatively low costs. Yet, it is uncertain whether they effectively help reduce stress. In a preregistered (OSF https://doi.org/10.17605/OSF.IO/UF4JZ ; retrospective registration at ClinicalTrials.gov NCT06308744 ) multi-site study (nsites = 37, nparticipants = 2,239, 70.4% women, Mage = 22.4, s.d.age = 10.1, all fluent English speakers), we experimentally tested whether four single, standalone mindfulness exercises effectively reduced stress, using Bayesian mixed-effects models. All exercises proved to be more efficacious than the active control. We observed a mean difference of 0.27 (d = -0.56; 95% confidence interval, -0.43 to -0.69) between the control condition (M = 1.95, s.d. = 0.50) and the condition with the largest stress reduction (body scan: M = 1.68, s.d. = 0.46). Our findings suggest that mindfulness may be beneficial for reducing self-reported short-term stress for English speakers from higher-income countries.
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Atención Plena , Estrés Psicológico , Humanos , Atención Plena/métodos , Femenino , Masculino , Adulto , Estrés Psicológico/terapia , Estrés Psicológico/prevención & control , Adulto Joven , Adolescente , Teorema de BayesRESUMEN
OBJECTIVE: We assessed differences between Australians' perceptions of their own compliance with coronavirus restrictions and their perceptions of community compliance. METHODS: We surveyed a national quota sample of 1,691 Australians in August and September 2020. Participants reported their level of compliance with coronavirus restrictions and estimated compliance from others in their state/territory. RESULTS: Overwhelmingly, most people reported complying with restrictions. They believed their fellow community members were much less compliant. Age and other demographics were only weakly associated with self-reported compliance and perceptions of others' compliance. CONCLUSIONS: The results are consistent with prevalent cognitive biases, including the tendency to believe one is better-than-average, and to more easily recall instances of deviances from social norms. IMPLICATIONS FOR PUBLIC HEALTH: We recommend public health messaging avoids amplifying instances of social transgressions of coronavirus restrictions. Instead, the widespread nature of social compliance with restrictions across the country should be emphasised.
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COVID-19 , SARS-CoV-2 , Australia , COVID-19/epidemiología , Humanos , Autoinforme , Encuestas y CuestionariosRESUMEN
Objectives: The goal of this exploratory study is to determine if urine:serum fractional excretion ratios can outperform the corresponding urinary biomarker proteins in identifying active renal disease in systemic lupus erythematosus (SLE). Methods: Thirty-six adult SLE patients and twelve healthy controls were examined for serum and urine levels of 8 protein markers, namely ALCAM, calpastatin, hemopexin, peroxiredoxin 6 (PRDX6), platelet factor 4 (PF4), properdin, TFPI and VCAM-1, by ELISA. Fractional excretion of analyzed biomarkers was calculated after normalizing both the urine and serum biomarker levels against creatinine. A further validation cohort of fifty SLE patients was included to validate the initial findings. Results: The FE ratios of all 8 proteins interrogated outperformed conventional disease activity markers such as anti-dsDNA, C3 and C4 in identifying renal disease activity. All but VCAM-1FE were superior to the corresponding urine biomarkers levels in differentiating LN activity, exhibiting positive correlation with renal SLEDAI. ALCAMFE, PF4FE and properdinFE ratios exhibited the highest accuracy (AUC>0.9) in distinguishing active LN from inactive SLE. Four of the FE ratios exhibited perfect sensitivity (calpastatin, PRDX6, PF4 and properdin), while ALCAMFE, PF4FE and properdinFE exhibited the highest specificity values for active LN. In addition, several of these novel biomarkers were associated with higher renal pathology activity indices. In the validation cohort ALCAMFE, PF4FE and properdinFE once again exhibited higher accuracy metrics, surpassing corresponding urine and serum biomarkers levels, with ALCAMFE exhibiting 95% accuracy in distinguishing active LN from inactive SLE. Conclusions: With most of the tested proteins, urine:serum fractional excretion ratios outperformed corresponding urine and serum protein measurements in identifying active renal involvement in SLE. Hence, this novel class of biomarkers in SLE ought to be systemically evaluated in larger independent cohorts for their diagnostic utility in LN assessment.
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Lupus Eritematoso Sistémico , Nefritis Lúpica , Molécula de Adhesión Celular del Leucocito Activado , Adulto , Biomarcadores , Humanos , Lupus Eritematoso Sistémico/diagnóstico , Nefritis Lúpica/diagnóstico , Factor Plaquetario 4 , Properdina , Molécula 1 de Adhesión Celular VascularRESUMEN
Introduction: The current gold standard used for urine biomarker normalization, creatinine, poses a challenge to translate to the point of care because antibodies to creatinine are difficult to develop and currently available ligands to creatinine are sub-optimal for this purpose. Hence, protein alternatives to creatinine are clearly needed. To address this need, lupus nephritis was selected as a model disease where urine protein assessment is required for diagnosis. Methods: A comprehensive proteomic screen of 1129 proteins in healthy and lupus nephritis urine was executed to identify protein alternatives to creatinine for the normalization of urine biomarkers. Urinary proteins that correlated well with creatinine but did not vary with disease were further validated by ELISA in an independent cohort of lupus nephritis subjects. Results: The comprehensive proteomic screen identified 14 urine proteins that correlated significantly with urine creatinine but did not differ significantly between SLE and controls. Of the top five proteins selected for ELISA validation, urine HVEM and RELT once again showed significant correlation with urine creatinine in independent cohorts. Normalizing a lupus nephritis biomarker candidate ALCAM using urinary HVEM demonstrated comparable diagnostic ability to creatinine normalization when distinguishing active lupus nephritis from inactive SLE patients. Conclusions: The discovery of urine HVEM as a protein alternative to creatinine for biomarker normalization has applications in the engineering of antibody-based point of care diagnostics for monitoring lupus nephritis progression.
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Nefritis Lúpica , Biomarcadores/orina , Creatinina , Humanos , Pruebas de Función Renal , Nefritis Lúpica/diagnóstico , ProteómicaRESUMEN
Recent research promotes comparing the current state of the environment with the past (and not the future) to increase the pro-environmental attitudes of those on the political right. We aimed to replicate this temporal framing effect and extend on research in this area by testing the potential drivers of the effect. Across two large-scale replication studies, we found limited evidence that past comparisons (relative to future comparisons) increase pro-environmentalism among those with a more conservative political ideology, thus precluding a full investigation into the mediators of the effect. Where the effect was present, it was not consistent across studies. In Study One, conservatives reported greater certainty that climate change was real after viewing past comparisons, as the environmental changes were perceived as more certain. However, in Study Two, the temporal framing condition interacted with political orientation to instead undermine the certainty about climate change among political liberals in the past-focused condition. Together, these studies present the first evidence of backfire from temporal frames, and do not support the efficacy of past comparisons for increasing conservatives' environmentalism. We echo recent calls for open science principles, including preregistration and efforts to replicate existing work, and suggest the replication of other methods of inducing temporal comparisons.
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Actitud , Cambio Climático , Política , Humanos , Principios Morales , Predominio Social , Encuestas y CuestionariosRESUMEN
Emerging urinary biomarkers continue to show promise in evaluating lupus nephritis (LN). Here, we screen urine from active LN patients for 1129 proteins using an aptamer-based platform, followed by ELISA validation in two independent cohorts comprised of 127 inactive lupus, 107 active LN, 67 active non-renal lupus patients and 74 healthy controls, of three different ethnicities. Urine proteins that best distinguish active LN from inactive disease are ALCAM, PF-4, properdin, and VCAM-1 among African-Americans, sE-selectin, VCAM-1, BFL-1 and Hemopexin among Caucasians, and ALCAM, VCAM-1, TFPI and PF-4 among Asians. Most of these correlate significantly with disease activity indices in the respective ethnic groups, and surpass conventional metrics in identifying active LN, with better sensitivity, and negative/positive predictive values. Several elevated urinary molecules are also expressed within the kidneys in LN, based on single-cell RNAseq analysis. Longitudinal studies are warranted to assess the utility of these biomarkers in tracking lupus nephritis.
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Aptámeros de Péptidos/metabolismo , Biomarcadores/orina , Nefritis Lúpica/diagnóstico , Proteínas/análisis , Molécula de Adhesión Celular del Leucocito Activado/orina , Adulto , Negro o Afroamericano/estadística & datos numéricos , Pueblo Asiatico/estadística & datos numéricos , Selectina E/análisis , Femenino , Humanos , Nefritis Lúpica/etnología , Nefritis Lúpica/orina , Properdina/orina , Sensibilidad y Especificidad , Molécula 1 de Adhesión Celular Vascular/orina , Población Blanca/estadística & datos numéricos , Adulto JovenRESUMEN
An amendment to this paper has been published and can be accessed via a link at the top of the paper.