The (in)visibility of fibromyalgia through its symptoms and the challenges of its diagnosis and therapy.

OBJECTIVE: To analyze the social representations of fibromyalgia based on its symptoms and their influences on diagnosis and therapy. METHODS: Qualitative research with the application of the Theory of Social Representations and snowball sampling method. Semi-structured interviews were conducted with 30 adults diagnosed with fibromyalgia in the city of Rio de Janeiro, Brazil, between April 2020 and January 2021. Statistical and lexicographical analysis was performed using Alceste software. RESULTS: Pain, as a subjective phenomenon, complicates its legitimacy, diagnosis, and therapy, enhancing suffering. Insufficient information generates judgments, stereotypes, and prejudices. FINAL CONSIDERATIONS: Stigmas, prejudices, the variety and invisibility of symptoms make it difficult to objectify the disease within the Cartesian-biomedical frameworks, generating diagnostic pilgrimage, mistakes, and challenges in treatment. Such representations hinder relationships and the management of the disease. Deconstructing them is a way to better care for those with fibromyalgia. Raising awareness and spreading qualified information are important allies.

Effects of trimer repeats on Psidium guajava L. gene expression and prospection of functional microsatellite markers.

Most research on trinucleotide repeats (TRs) focuses on human diseases, with few on the impact of TR expansions on plant gene expression. This work investigates TRs' effect on global gene expression in Psidium guajava L., a plant species with widespread distribution and significant relevance in the food, pharmacology, and economics sectors. We analyzed TR-containing coding sequences in 1,107 transcripts from 2,256 genes across root, shoot, young leaf, old leaf, and flower bud tissues of the Brazilian guava cultivars Cortibel RM and Paluma. Structural analysis revealed TR sequences with small repeat numbers (5-9) starting with cytosine or guanine or containing these bases. Functional annotation indicated TR-containing genes' involvement in cellular structures and processes (especially cell membranes and signal recognition), stress response, and resistance. Gene expression analysis showed significant variation, with a subset of highly expressed genes in both cultivars. Differential expression highlighted numerous down-regulated genes in Cortibel RM tissues, but not in Paluma, suggesting interplay between tissues and cultivars. Among 72 differentially expressed genes with TRs, 24 form miRNAs, 13 encode transcription factors, and 11 are associated with transposable elements. In addition, a set of 20 SSR-annotated, transcribed, and differentially expressed genes with TRs was selected as phenotypic markers for Psidium guajava and, potentially for closely related species as well.

Síndrome de Burnout um risco aos profissionais de educação física: uma revisão integrativa / Burnout syndrome a risk to physical education profes-sionals: an integrative review / El síndrome de Burnout un riesgo para los profesionales de la educación física: una revisión integrativa

Objetivou-se identificar e analisar as características da síndro-me de burnout em profissionais da educação física no Brasil. Foi realiza-da uma revisão integrativa, entre os meses de janeiro e julho de 2022, com buscas nos BVS/ Portal Bireme, Scielo, Lilacs, e Google Acadêmico. Foram identificados 10 estudos nos últimos 20 anos. A prevalência da síndrome de Burnout foi em média de 11,55%. Os estudos associam o esgotamento profissional a sobrecarga de trabalho, pluriemprego e remuneração inadequada. Desta forma, evidenciou-se os riscos aos quais essa classe profissional é exposta, ressaltando a importância de manter condições e ambientes de trabalhos adequados. Todavia, mais estudos sobre a síndrome de Burnout em profissionais da educação física devém ser conduzidos no Brasil (AU).

This research aimed to identify and analyze the Burnout syn-drome characteristics in physical education professionals in Brazil. An in-tegrative review was carried out, from January to July 2022. The research were performed in the BVS/Portal Bireme, Scielo, Lilacs and Google Scholar. The literature reported 10 studies in Brazil in the last 20 years. In general, the mean prevalence of Burnout syndrome was 11,55%. Moreover, the studies associate professional exhaustion with overwork, multiple jobs and inadequate remuneration. The study highlighted the syndrome incidence and risks to this professional class and emphasized the importance of maintaining adequate working conditions and envi-ronments. However, more studies on Burnout syndrome in physical ed-ucation professionals should be conducted in Brazil (AU).

El objetivo fue identificar y analizar las características del síndrome de burnout en profesionales de educación física en Brasil. Se realizó una revisión integradora entre enero y julio de 2022, con búsque-das en el Portal BVS/Bireme, Scielo, Lilacs y Google Scholar. Se identifica-ron 10 estudios en los últimos 20 años. El predominio del síndrome de Burnout fue en promedio de 11,55%. Los estudios asocian el desgaste profesional con el exceso de trabajo, el pluriempleo y la remuneración inadecuada. De esta manera, se resaltaron los riesgos a los que está ex-puesta esta clase profesional, resaltando la importancia de mantener condiciones y ambientes de trabajo adecuados. Sin embargo, se deben realizar más estudios sobre el síndrome de Burnout en profesionales de la educación física en Brasil (AU).

Beliefs and practices of the nursing team related to pressure injury preventive measures: A analysis of social representations.

AIMS AND OBJECTIVES: To analyse the process of elaborating social representations about pressure injury preventive measures by the nursing team (nurses and nurse technicians) and how this process relates to preventive practices for hospitalized patients. DESIGN: Qualitative study, with the application of the theory of social representations in its procedural methodological approach. METHODS: The study was carried out in an inpatient clinic of a public hospital in the state of Rondônia, Brazil. Totally, 28 nursing professionals in the medical clinic sectors who had worked directly with patient care for more than 6 months participated. The data were collected between July and September 2021 via in-depth interviews with the application of a semi-structured instrument. Analysis was carried out with the help of ALCESTE software, which performed a lexicographic analysis, and also via thematic analysis. The COREQ guided the presentation of the research report. RESULTS: The social representations were developed based on the professionals' symbolic beliefs about the visibility/invisibility of the results of applying preventive care. These symbolic constructions mobilized positive and negative feelings among the nursing team, which guided the classification of prevention practices as being of greater or lesser priority among other care activities. There were favourable attitudes among professionals, which included applying prevention measures in their daily routines, and unfavourable attitudes of non-adherence to the institution's protocol for preventing pressure injuries. CONCLUSIONS: The nursing team's perception of pressure injury prevention is influenced by symbolic, affective, values, and social dimensions. Non-adherence behaviours are attributed to the belief in the invisibility of prevention outcomes, resulting in a reluctance to implement preventive measures. RELEVANCE TO CLINICAL PRACTICE: Understanding the subjective logic that explains the thinking and actions of the nursing team suggests the need to incorporate discussions on beliefs, values, sentiments, and attitudes of nursing professionals into educational programs on pressure injury prevention. PATIENT OR PUBLIC CONTRIBUTION: No public contribution.

Effects of plasma rich in growth factors on wound healing in patients with venous ulcers.

Introduction: Significant evidence suggests that plasma-rich in growth factors (PRGF) favor the repair of chronic wounds, enabling a rapid return to functionality. However, components of PRGF and their effects on persistent ulcers and epithelial tissues are not well characterized. The goals of this research were to analyze the biological properties of platelet-derived factors, to examine their effectiveness on healing of venous ulcers, and to establish a correlation with clinical and sociodemographic data. Methods: For the preparation of PRGF, the centrifugation technique was used, obtaining a 100 % autologous and biocompatible blood sample that was treated with sodium citrate and calcium chloride. The patients were attended weekly at the outpatient clinic for nursing consultation and wound dressing changes, with PRGF application every 15 days. The treatment protocols are described, and follow-up results are reported. Results: Initially, the patients' ulcers ranged in sizes from 4 to 84 cm2. After 12 weeks of treatment, there was a significant mean reduction of 46.2 % in ulcer area. At baseline, epithelial tissue was absent in all venous ulcers, but its presence grew significantly by the treatment period. However, the reduction of the area of the ulcers did not show significant correlation with the concentrations of the patient's growth factors. Conclusions: Using the established protocol for PRGF isolating, it was possible to obtain a product with the presence of the six growth factors related to tissue regeneration and observed a positive response on wound healing following treatment of venous ulcers, with capacity to accelerate re-epithelialization and restore the skin functional integrity.

Exploring the versatility of sesquiterpene biosynthesis in guava plants: a comparative genome-wide analysis of two cultivars.

Psidium guajava L., a fruit crop belonging to the Myrtaceae family, is highly valued for its nutritional and medicinal properties. The family exhibits a diverse chemical profile of essential oils and serves as a valuable resource due to its ecological interactions, adaptability, and dispersal capacity. The Myrtaceae family has been extensively studied for its terpenoids. Genetic studies have focused on foliar terpene yield in species from the Eucalypteae and Melaleucaceae tribes. To understand the evolutionary trends in guava breeding, this study predicted terpene synthase genes (TPS) from different cultivars. Through this analysis, 43 full-length TPS genes were identified, and approximately 77% of them exhibited relative expression in at least one of the five investigated plant tissues (root, leaf, bud, flower, and fruit) of two guava cultivars. We identified intra-species variation in the terpene profile and single nucleotide polymorphisms (SNPs) in twelve TPS genes, resulting in the clustering of 62 genotypes according to their essential oil chemotypes. The high concentration of sesquiterpenes is supported by the higher number of TPS-a genes and their expression. The expansion for TPS sub-families in P. guajava occurred after the expansion of other rosids species. Providing insight into the origin of structural diversification and expansion in each clade of the TPS gene family within Myrtaceae. This study can provide insights into the diversity of genes for specialized metabolites such as terpenes, and their regulation, which can lead to a diverse chemotype of essential oil in different tissues and genotypes. This suggests a mode of enzymatic evolution that could lead to high sesquiterpene production, act as a chemical defense and contribute to the adaptive capacity of this species to different habitats.

Organizations and stakeholders' roles and influence on implementing sustainability requirements in construction projects.

Construction projects significantly affect a country's development, consume many resources, and impact many stakeholders. Project sustainability requirements are essential to overcome the current social and environmental challenges, yet entrepreneurs, decision-makers, and technical professionals still ignore them. This research aims to reveal the leading players that can influence implementing sustainability requirements in construction project development, the barriers, and possible solutions. The results show that organizational strategies, maturity level in sustainability, and the ability to change corporate values and beliefs play a significant role in this pivotal movement. At the same time, a set of external stakeholders, such as investors, banks, communities, suppliers, regulatory agencies, and insurance companies, may push a specific behavior to the market and influence change. On top of this, organizations shall build their strategy toward sustainability and implement sustainable project management. This study employs the Complex Holographic Assessment of Paradoxical Problems (CHAP2) to investigate the current situation in Brazil related to the integration of construction project development and sustainability requirements.

Leishmanicidal activity and 4D quantitative structure-activity relationship and molecular docking studies of vanillin-containing 1,2,3-triazole derivatives.

Aim: The assessment of the antileishmanial potential of 22 vanillin-containing 1,2,3-triazole derivatives against Leishmania braziliensis is reported. Materials & methods: Initial screening was performed against the parasite promastigote form. The most active compound, 4b, targeted parasites within amastigotes (IC50 = 4.2 ± 1.0 µmol l-1), presenting low cytotoxicity and a selective index value of 39. 4D quantitative structure-activity relationship and molecular docking studies provided insights into structure-activity and biological effects. Conclusion: A vanillin derivative with significant antileishmanial activity was identified. Enhanced activity was linked to increased electrostatic and Van der Waals interactions near the benzyl ring of the derivatives. Molecular docking indicated the inhibition of the Leishmania amazonensis sterol 14α-demethylase, using Leishmania infantum sterol 14α-demethylase as a model, without affecting the human isoform. Inhibition was active site competition with lanosterol.

The (in)visibility of fibromyalgia through its symptoms and the challenges of its diagnosis and therapy / La (in)visibilidad de la fibromialgia a través de sus síntomas y los desafíos de su diagnóstico y terapia / A (in)visibilidade da fibromialgia por seus sintomas e os desafios do seu diagnóstico e terapêutica

ABSTRACT Objective: To analyze the social representations of fibromyalgia based on its symptoms and their influences on diagnosis and therapy. Methods: Qualitative research with the application of the Theory of Social Representations and snowball sampling method. Semi-structured interviews were conducted with 30 adults diagnosed with fibromyalgia in the city of Rio de Janeiro, Brazil, between April 2020 and January 2021. Statistical and lexicographical analysis was performed using Alceste software. Results: Pain, as a subjective phenomenon, complicates its legitimacy, diagnosis, and therapy, enhancing suffering. Insufficient information generates judgments, stereotypes, and prejudices. Final Considerations: Stigmas, prejudices, the variety and invisibility of symptoms make it difficult to objectify the disease within the Cartesian-biomedical frameworks, generating diagnostic pilgrimage, mistakes, and challenges in treatment. Such representations hinder relationships and the management of the disease. Deconstructing them is a way to better care for those with fibromyalgia. Raising awareness and spreading qualified information are important allies.

RESUMEN Objetivo: Analizar las representaciones sociales de la fibromialgia basadas en sus síntomas y sus influencias en el diagnóstico y la terapia. Métodos: Investigación cualitativa con la aplicación de la Teoría de las Representaciones Sociales y método de muestreo en bola de nieve. Se realizaron entrevistas semiestructuradas con 30 personas adultas, diagnosticadas con fibromialgia, en la ciudad de Río de Janeiro, Brasil, entre abril de 2020 y enero de 2021. Se llevó a cabo un análisis estadístico y lexicográfico mediante el software Alceste. Resultados: El dolor, como fenómeno subjetivo, dificulta su legitimidad, el diagnóstico y la terapia, intensificando el sufrimiento. La información insuficiente genera juicios, estereotipos y prejuicios. Consideraciones finales: Los estigmas, prejuicios, la variedad y la invisibilidad sintomática dificultan la objetivación de la enfermedad en los modelos cartesianos-biomédicos, generando una peregrinación diagnóstica, errores y desafíos en el tratamiento. Tales representaciones obstaculizan las relaciones y el manejo de la enfermedad. Desconstruirlas es un camino para mejorar el cuidado de quienes tienen fibromialgia. Sensibilizar a las personas y difundir información cualificada son aliados importantes.

RESUMO Objetivo: Analisar as representações sociais da fibromialgia baseadas em seus sintomas e suas influências no diagnóstico e na terapêutica. Métodos: Pesquisa qualitativa com aplicação da Teoria das Representações Sociais e método de amostragem snowball. Realizaram-se entrevistas semiestruturadas com 30 pessoas adultas, diagnosticadas com fibromialgia, na cidade do Rio de Janeiro, Brasil, entre abril de 2020 e janeiro de 2021. Foi realizada análise estatística e lexicográfica pelo software Alceste. Resultados: A dor, como fenômeno subjetivo, dificulta sua legitimidade, o diagnóstico e a terapêutica, potencializando o sofrimento. Informações insuficientes geram julgamentos, estereótipos e preconceitos. Considerações finais: Estigmas, preconceitos, a variedade e a invisibilidade sintomatológica dificultam a objetivação da doença nos moldes cartesianos-biomédicos, gerando peregrinação diagnóstica, equívocos e desafios no tratamento. Tais representações interditam as relações e o manejo da doença. Desconstruí-las é um caminho para melhor cuidar dos que têm fibromialgia. Sensibilizar as pessoas e difundir informações qualificadas são importantes aliados.

Social representations of loneliness in people aged at least seventy years old / Representações sociais da solidão em pessoas septuagenárias e em idosos / Representación social de la soledad en personas septuagenarias y de mayor edad

ABSTRACT Objective: to analyze the social representations of loneliness in older adults. Method: an exploratory and qualitative research study conducted in Lambayeque, Peru, by applying the Theory of Social Representations. A sociodemographic questionnaire was applied and in-depth interviews were conducted employing the semi-structured instrument with 32 older adults aged at least 70 years old, 50% belonging to each gender. Simple statistics and percentage analysis were applied to the sociodemographic data. The interviews were analyzed in the Alceste software program, subjecting them to lexicographic analysis. Results: the negative social representations refer to weak or impaired social relations with insufficient social support, thus vulnerabilizing older adults. The positive ones refer to pleasurable activities with no other people involved, assuming loneliness as adequate for intimacy, for listening to silence, for enjoying harmony and peace, for internal self-connection and for leading a pleasurable life, valuing it and strengthening the spiritual dimension. Conclusion: there is certain dialectics in the conception of loneliness: negative when it refers to the social context and to older adults' relationships with others; and positive when it represents an opportunity to embrace loneliness and perform pleasurable activities without depending on other people. It is indispensable to foster such positive aspects in the care provided to aged people.

RESUMO Objetivo: analisar as representações sociais da solidão em idosos. Método: pesquisa exploratória e qualitativa, aplicando a Teoria das Representações Sociais, realizada em Lambayeque, Peru. Aplicou-se um questionário sociodemográfico, sendo realizadas entrevistas em profundidade usando um instrumento semiestruturado, com 32 idosos com idade acima dos setenta anos, sendo 50% do sexo masculino e 50% do sexo feminino. Aplicou-se estatística simples e análise porcentual aos dados sociodemográficos. As entrevistas foram analisadas no software Alceste e submetidas à análise lexicográfica. Resultados: as representações negativas fazem referência a relações sociais fragilizadas ou diminuídas, com insuficiente apoio emocional, vulnerabilizando aos idosos. As positivas fazem referência a atividades prazerosas sem presença de outras pessoas, assumindo a solidão como adequada para a intimidade, para escutar o silencio, ter harmonia e paz, conectar-se internamente e viver uma vida agradável, valorar a vida e fortalecer a dimensão espiritual. Conclusão: há uma dialética na concepção da solidão: negativa quando se refere ao contexto social e às relações dos idosos com outras pessoas; e positiva quando representa uma oportunidade de abraçar a solidão e realizar atividades prazerosas sem depender de outros. É imprescindível fomentar esses aspectos positivos no cuidado dos idosos.

RESUMEN Objetivo: analizar las representaciones sociales de la soledad en adultos mayores. Método: investigación exploratoria, cualitativa, aplicando la Teoría de las Representaciones Sociales, realizada en Lambayeque, Perú. Se aplicó cuestionario sociodemográfico y se realizó entrevista en profundidad empleando instrumento semiestructurado, con 32 adultos mayores de 70 años o más, 50% de cada sexo. Se aplicó estadística simple y análisis porcentual a los datos sociodemográficos. Las entrevistas fueron analizadas mediante el software Alceste, practicándoseles análisis lexicográfico. Resultados: las representaciones negativas hacen referencia a relaciones sociales frágiles o disminuidas, con apoyo emocional insuficiente, vulnerabilizando a los adultos mayores. Las positivas hacen referencia a actividades placenteras sin presencia de otras personas, asumiendo la soledad como adecuada para la intimidad, para oír el silencio, tener armonía y paz, para conectarse internamente y asumir una vida agradable, valorar la vida y fortalecer la dimensión espiritual. Conclusión: hay una dialéctica en la concepción de la soledad, que es negativa cuando se refiere al contexto social, a las relaciones del anciano con los demás; y positiva cuando representa una oportunidad de abrazar la soledad y realizar actividades placenteras sin depender de terceras personas. Es imprescindible fomentar tales aspectos positivos en el cuidado de las personas ancianas.

Food (in) security and nutritional dietary quality In Brazil / Insegurança alimentar e nutricional e qualidade da dieta no Brasil

ABSTRACT Objective Verify association between the perception of food insecurity and the diet quality of the Brazilian population, applying The Brazilian Food Insecurity Scale and the Brazilian Healthy Eating Index Revised. Methods Cross-sectional study using data from the Householder Budget Survey collected in 2017/18 with two 24-hour recalls. A multinomial regression model was used with Odds Ratio and a 95% confidence interval, with the final model being the insertion of variables according to the theoretical model of hierarchy adopted. Results A total of 57,920 households were analyzed, and of these, 39.22% lived with some degree of Food Insecurity. There was a significant difference between female heads of the household, mixed race and black race, households with adults and children and living in rural regions as the three levels of AI [Food insecure] (p=<0.001), with a greater chance of food insecurity in these households. The average Brazilian Healthy Eating Index Revised for the 46,152 individuals was 54.23 points for those who were not food insecure, and 54.11 points for those who experienced severe food insecurity. Conclusion It is concluded that there is an association between the perception of food insecurity and the nutritional quality of the diet of the Brazilian population, which can lead to malnutrition and obesity.

RESUMO Objetivo Verificar a associação entre a percepção de insegurança alimentar e a qualidade da dieta da população brasileira, aplicando a Escala Brasileira de Insegurança Alimentar e o Índice de Qualidade da Dieta Revisado a partir de dois recordatórios de 24 horas. Métodos Estudo transversal que utilizou dados da Pesquisa de Orçamentos Familiares de 2017-2018. Utilizou-se o modelo de regressão multinomial com Odds Ratio e intervalo de confiança de 95%, sendo o modelo final com inserção das variáveis de acordo com o modelo teórico de hierarquia adotado. Resultados Foram analisados 57.920 domicílios, e destes, 39,22% viviam com algum grau de Insegurança Alimentar. Verificou-se diferença significativa entre pessoas do sexo feminino como chefe do domicílio, raça pardo e preto, domicílios com adultos e crianças e residir na região rural como os três níveis de Insegurança Alimentar (p=<0,001), havendo uma maior chance de insegurança alimentar nesses domicílios. A média do Índice de Qualidade da Dieta Revisado para os 46.152 indivíduos foi de 54.23 pontos para os que não apresentavam insegurança alimentar, e 54.11 pontos para aqueles que vivenciaram insegurança alimentar grave. Conclusão Conclui-se que existe associação entre a percepção de insegurança alimentar e a qualidade nutricional da dieta da população brasileira, o que pode levar à desnutrição e obesidade.

Measures of Health Care Providers' Knowledge, Clinical Skills, or Prejudice Toward Lesbian, Gay, Bisexual, Transgender, Queer, Intersex, Asexual, and Other Sexual and Gender Minority Populations: A Scoping Review.

Purpose: Assessing health care providers' knowledge, clinical skills, and prejudice toward lesbian, gay, bisexual, transgender, queer, intersex, asexual, and other sexual and gender minority populations (LGBTQIA+) can help identify areas for improvement in health care provider training. The aim of this study was to map the range of studies that report measures of health care providers' knowledge, clinical skills, or prejudice toward LGBTQIA+ populations. Methods: A scoping review adopting the Joanna Briggs Institute methodology was conducted. Electronic database searches were conducted in CINAHL via EBSCO Host, Epistemonikos, LILACS via Virtual Health Library Regional Portal, PubMed, Scopus, and Web of Sciences. The samples of other reviews were screened. Studies that validated, translated, and/or cross-culturally adapted measures of the knowledge, clinical skills, and prejudice of health care providers and students toward LGBTQIA+ individuals were selected. Scholars were consulted to ensure that no relevant studies were missing. Data were extracted by two independent reviewers and presented in tabular form along with narrative summaries. Results: This scoping review identified 27 measures that have been validated, translated, and/or adapted with health care providers or students as the target population, distributed across 33 studies. Conclusions: Psychometric studies involving LGBTQIA+ patients and health care professionals have increased in recent years, with North American countries being the most frequent location. However, a growing number of studies are being conducted in Latin American countries such as Brazil and Colombia.

Integrating morphological, biochemical, behavioural, and molecular approaches to investigate developmental toxicity triggered by tebuthiuron in zebrafish (Danio rerio).

Tebuthiuron (TBU), a phenylurea herbicide, is widely applied in agricultural and non-agricultural soils. Because TBU resists degradation, it can contaminate water and reach the biota once it is released into the environment. However, the potential toxic effects of TBU on aquatic developing organisms have been poorly studied. By taking advantage of the early-life stages of zebrafish (Danio rerio), we have combined morphological, biochemical, behavioural, and molecular approaches to investigate the developmental toxicity triggered by environmentally relevant concentrations (from 0.1 to 1000 µg/L) of TBU. Exposure to TBU did not elicit morphological abnormalities but it significantly delayed hatching. In addition, TBU altered the frequency of tail coils in one-day post-fertilization (dpf) old embryos. Moreover, TBU exposure during four days significantly inhibited the whole body AChE activity of larvae. At the molecular level, TBU did not significantly affect the mRNA levels of four genes (elavl3, gfap, gap43, and shha) that play key roles during the neurodevelopment of zebrafish. By assessing the motor responses to repeated light-dark stimuli, 6 dpf larvae exposed to TBU displayed hyperactivity, showing greater travelling distance during the dark periods. Our categorization of swimming speed revealed an interesting finding - after the light was turned off, the exposed larvae abandoned the freezing mode (<2 mm/s) and travelled mainly at cruising speed (2-20 mm/s), showing that the larval hyperactivity did not translate into higher swimming velocity. Overall, our results offer new insights into the TBU toxicity to developing organisms, namely effects in AChE activity and hyperactivity, providing support data for future studies considering environmental risk assessment of this herbicide.

Herbicide and Cytogenotoxic Activity of Inclusion Complexes of Psidium gaudichaudianum Leaf Essential Oil and ß-Caryophyllene on 2-Hydroxypropyl-ß-cyclodextrin.

The present investigation aimed to develop inclusion complexes (ICs) from Psidium gaudichaudianum (GAU) essential oil (EO) and its major compound ß-caryophyllene (ß-CAR), and to evaluate their herbicidal (against Lolium multiflorum and Bidens pilosa) and cytogenotoxic (on Lactuca sativa) activities. The ICs were obtained using 2-hydroxypropyl-ß-cyclodextrin (HPßCD) and they were prepared to avoid or reduce the volatility and degradation of GAU EO and ß-CAR. The ICs obtained showed a complexation efficiency of 91.5 and 83.9% for GAU EO and ß-CAR, respectively. The IC of GAU EO at a concentration of 3000 µg mL-1 displayed a significant effect against weed species B. pilosa and L. multiflorum. However, the ß-CAR IC at a concentration of 3000 µg mL-1 was effective only on L. multiflorum. In addition, the cytogenotoxic activity evaluation revealed that there was a reduction in the mitotic index and an increase in chromosomal abnormalities. The produced ICs were able to protect the EO and ß-CAR from volatility and degradation, with a high thermal stability, and they also enabled the solubilization of the EO and ß-CAR in water without the addition of an organic solvent. Therefore, it is possible to indicate the obtained products as potential candidates for commercial exploration since the ICs allow the complexed EO to exhibit a more stable chemical constitution than pure EO under storage conditions.

Genomic studies of the additive and dominant genetic control on production traits of Euterpe edulis fruits.

In forest genetic improvement programs for non-domesticated species, limited knowledge of kinship can compromise or make the estimation of variance components and genetic parameters of traits of interest unfeasible. We used mixed models and genomics (in the latter, considering additive and non-additive effects) to evaluate the genetic architecture of 12 traits in juçaizeiro for fruit production. A population of 275 genotypes without genetic relationship knowledge was phenotyped over three years and genotyped by whole genome SNP markers. We have verified superiority in the quality of the fits, the prediction accuracy for unbalanced data, and the possibility of unfolding the genetic effects into their additive and non-additive terms in the genomic models. Estimates of the variance components and genetic parameters obtained by the additive models may be overestimated since, when considering the dominance effect in the model, there are substantial reductions in them. The number of bunches, fresh fruit mass of bunch, rachis length, fresh mass of 25 fruits, and amount of pulp were strongly influenced by the dominance effect, showing that genomic models with such effect should be considered for these traits, which may result in selective improvements by being able to return more accurate genomic breeding values. The present study reveals the additive and non-additive genetic control of the evaluated traits and highlights the importance of genomic information-based approaches for populations without knowledge of kinship and experimental design. Our findings underscore the critical role of genomic data in elucidating the genetic control architecture of quantitative traits, thereby providing crucial insights for driving species' genetic improvement.

Single and multi-trait genomic prediction for agronomic traits in Euterpe edulis.

Popularly known as juçaizeiro, Euterpe edulis has been gaining prominence in the fruit growing sector and has demanded the development of superior genetic materials. Since it is a native species and still little studied, the application of more sophisticated techniques can result in higher gains with less time. Until now, there are no studies that apply genomic prediction for this crop, especially in multi-trait analysis. In this sense, this study aimed to apply new methods and breeding techniques for the juçaizeiro, to optimize this breeding program through the application of genomic prediction. This data consisted of 275 juçaizeiro genotypes from a population of Rio Novo do Sul-ES, Brazil. The genomic prediction was performed using the multi-trait (G-BLUP MT) and single-trait (G-BLUP ST) models and the selection of superior genotypes was based on a selection index. Similar results for predictive ability were observed for both models. However, the G-BLUP ST model provided greater selection gains when compared to the G-BLUP MT. For this reason, the genomic estimated breeding values (GEBVs) from the G-BLUP ST, were used to select the six superior genotypes (UFES.A.RN.390, UFES.A.RN.386, UFES.A.RN.080, UFES.A.RN.383, UFES.S.RN.098, and UFES.S.RN.093). This was intended to provide superior genetic materials for the development of seedlings and implantation of productive orchards, which will meet the demands of the productive, industrial and consumer market.

Outline of a project for nursing health education on the Instagram social network.

OBJECTIVES: to characterize the outline of a project for health education and its contributions to the propagation of information on the Instagram social network. METHODS: exploratory and descriptive research on an Instagram profile called "@resenhadasaude";. Data collection: from July 23, 2020, to April 21, 2021. Interaction metrics were generated on 36 posts. Simple and percentage statistical analysis were applied. RESULTS: there are 1,016 followers in Brazil, with a 206.02% growth. The largest audience is teenagers, young people, and women, with a gender difference of 41.8%. The greatest interest was about covid-19, sexual health, and drugs. Followers' misconceptions reinforce the need for the dissemination of quality information. CONCLUSIONS: Instagram metrics point to the project's validation in terms of audience interest, mostly adolescents and youth. Instagram proved to be powerful for educational purposes and information dissemination, as well as an autonomous field for nursing.

Lower Concentrations of Amphotericin B Combined with Ent-Hardwickiic Acid Are Effective against Candida Strains.

Life-threatening Candida infections have increased with the COVID-19 pandemic, and the already limited arsenal of antifungal drugs has become even more restricted due to its side effects associated with complications after SARS-CoV-2 infection. Drug combination strategies have the potential to reduce the risk of side effects without loss of therapeutic efficacy. The aim of this study was to evaluate the combination of ent-hardwickiic acid with low concentrations of amphotericin B against Candida strains. The minimum inhibitory concentration (MIC) values were determined for amphotericin B and ent-hardwickiic acid as isolated compounds and for 77 combinations of amphotericin B and ent-hardwickiic acid concentrations that were assessed by using the checkerboard microdilution method. Time-kill assays were performed in order to assess the fungistatic or fungicidal nature of the different combinations. The strategy of combining both compounds markedly reduced the MIC values from 16 µg/mL to 1 µg/mL of amphotericin B and from 12.5 µg/mL to 6.25 µg/mL of ent-hardwickiic acid, from isolated to combined, against C. albicans resistant to azoles. The combination of 1 µg/mL of amphotericin B with 6.25 µg/mL of ent-hardwickiic acid killed all the cells of the same strain within four hours of incubation.

Genome-wide identification, expression profile and evolutionary relationships of TPS genes in the neotropical fruit tree species Psidium cattleyanum.

Terpenoids are essential for plant growth, development, defense, and adaptation mechanisms. Psidium cattleyanum (Myrtaceae) is a fleshy fruit tree species endemics from Atlantic Forest, known for its pleasant fragrance and sweet taste, attributed to terpenoids in its leaves and fruits. In this study, we conducted genome-wide identification, evolutionary and expression analyses of the terpene synthase gene (TPS) family in P. cattleyanum red guava (var. cattleyanum), and yellow guava (var. lucidum Hort.) morphotypes. We identified 32 full-length TPS in red guava (RedTPS) and 30 in yellow guava (YlwTPS). We showed different expression patterns of TPS paralogous in the two morphotypes, suggesting the existence of distinct gene regulation mechanisms and their influence on the final essential oil content in both morphotypes. Moreover, the oil profile of red guava was dominated by 1,8-cineole and linalool and yellow guava was enriched in α-pinene, coincident in proportion to TPS-b1 genes, which encode enzymes that produce cyclic monoterpenes, suggesting a lineage-specific subfamily expansion of this family. Finally, we identified amino acid residues near the catalytic center and functional areas under positive selection. Our findings provide valuable insights into the terpene biosynthesis in a Neotropical Myrtaceae species and their potential involvement in adaptation mechanisms.

Synthesis of vanillin derivatives with 1,2,3-triazole fragments and evaluation of their fungicide and fungistatic activities.

Vanillin is the main component of natural vanilla extract and is responsible for its flavoring properties. Besides its well-known applications as an additive in food and cosmetics, it has also been reported that vanillin can inhibit fungi of clinical interest, such as Candida spp., Cryptococcus spp., Aspergillus spp., as well as dermatophytes. Thus, the present work approaches the synthesis of a series of vanillin derivatives with 1,2,3-triazole fragments and the evaluation of their antifungal activities against Candida albicans, Candida glabrata, Candida parapsilosis, Candida tropicalis, Cryptococcus neoformans, Cryptococcus gattii, Trichophyton rubrum, and Trichophyton interdigitale strains. Twenty-two vanillin derivatives were obtained, with yields in the range of 60%-91%, from copper(I)-catalyzed alkyne-azide cycloaddition (CuAAC) click reaction between two terminal alkynes prepared from vanillin and different benzyl azides. In general, the evaluated compounds showed moderate activity against the microorganisms tested, with minimum inhibitory concentration (MIC) values ranging from 32 to >512 µg mL-1 . Except for compound 3b against the C. gattii R265 strain, all vanillin derivatives showed fungicidal activity for the yeasts tested. The predicted physicochemical and ADMET (absorption, distribution, metabolism, excretion, and toxicity) properties for the compounds indicated favorable profiles for drug development. In addition, a four-dimensional structure-activity relationship (4D-SAR) analysis was carried out and provided useful insights concerning the structures of the compounds and their biological profile. Finally, molecular docking calculations showed that all compounds bind favorably at the lanosterol 14α-demethylase enzyme active site with binding energies ranging from -9.1 to -12.2 kcal/mol.