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Abstract The flotation mechanism of galena with xanthate as the collector is generally explained based on the mixed potential of the pulp, in which an anodic electron transfer reaction from the collector to the mineral is combined with an O2 cathodic reduction. Sodium sulphide, often used as a mineral activator, strongly influences the pulp's mixed potential, and depending on the dosage applied, it can become a galena depressor reagent. In this way, the current study assesses galena flotability in the absence of collector, as well as in the presence of the collector potassium amyl xanthate (PAX) and sodium sulphide. The effect of an extremely cathodic potential was also studied through the addition of hydrogen peroxide. In addition, the effect of different stages in the oxidation of the galena surface on the flotability was investigated. Moreover, the zeta potential was measured and contact angle (wettability) tests were carried out. The contact angle measurements were taken for a distilled water, PAX solution and for a mixture of PAX and sodium sulphide solution on the oxidized and non-oxidized surface of galena. All the results showed that galena could be floated in all the PAX concentrations tested. It was observed that a moderate oxidation in the galena surface may contribute to an improvement of its flotation with PAX. However, extremely anodic and cathodic potentials cause flotability close to zero. The zeta potential results showed that sodium sulphide affected the interaction between PAX and galena. The measurements of the contact angle corroborated the results obtained in the microflotation tests. pulp O reduction activator pulps s applied reagent way (PAX peroxide investigated Moreover wettability (wettability out water nonoxidized non tested However zero

https://doi.org/10.1590/0370-44672023770053

Post-discharge all-cause mortality in COVID-19 recovered patients hospitalized in 2020: the impact of chronic kidney disease
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Lomba, Guilherme Schittine Bezerra

; Silva, Pedro Henrique Abreu da

; Rosário, Natalia Fonseca do

; Medeiros, Thalia

; Alves, Lilian Santos

; Silva, Andrea Alice

; Almeida, Jorge Reis

; Lugon, Jocemir Ronaldo

Revista do Instituto de Medicina Tropical de São Paulo

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2024, Volumen 66 elocation e1

Resumen: En | Texto: En | PDF: En

ABSTRACT In Brazil, the COVID-19 burden was substantial, and risk factors associated with higher in-hospital mortality rates have been extensively studied. However, information on short-term all-cause mortality and the factors associated with death in patients who survived the hospitalization period of acute SARS-CoV-2 infection is limited. We analyzed the six-month post-hospitalization mortality rate and possible risk factors of COVID-19 patients in a single center in Brazil. This is a retrospective cohort study focused on a six-month follow-up. The exclusion criteria were death during hospitalization, transference to another hospital, and age under 18. We collected data from the charts of all hospitalized patients from March 2020 to December 2020 with a positive RT-PCR test for SARS-CoV-2, resulting in a sample size of 106 patients. The main outcome was death after hospitalization, whereas comorbidities and demographics were evaluated as risk factors. The crude post-hospitalization death rate was 16%. The first 30 days of follow-up had the highest mortality rate. In a Cox regression model for post-hospitalization mortality, previous chronic kidney disease (HR, 4.06, 95%CI 1.46 – 11.30) and longer hospital stay (HR 1.01, 95%CI 1.00 – 1.02) were the only factors statistically associated with death. In conclusion, a high six-month all-cause mortality was observed. Within the six-month follow-up, a higher risk of death was observed for patients who had prior CKD and longer hospital stay. These findings highlight the importance of more intensive medical surveillance during this period.

https://doi.org/10.1590/s1678-9946202466001

Understanding of the role of serum creatinine in a subset of the Brazilian population
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Cerqueira, Bruno Pellozo

; Rocha, Júlia Ferreira

; Barnes, Rafaela Francisquetti

; Pepato, Pedro Henrique Moretti

; Paim, Thays Sellan

; De Nardi, Francisco

; Hsu, Fabrício Akira

; Oguma, Juliana Miki

; Ito, Leticia Miyuki

; da Silva, Enio Yasuhiro Arimatsu Policarpo

; Vizzuso-Oliveira, Alexandre

; Filho, Fernando Diniz dos Santos

; Maia, João Vitor Bozza

; Mendez, Juan Diego Zambrano

; Sato, Beatrice Borges

; Souza, Roberto Matias

; Miyahara, Andre Kiyoshi

; Kirsztajn, Gianna Mastroianni

Brazilian Journal of Nephrology

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2024, Nº ahead

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

Abstract Introduction: Chronic kidney disease is usually asymptomatic, and its diagnosis depends on laboratory tests, with emphasis on serum creatinine and proteinuria. Objective: To assess knowledge on the role of serum creatinine as a biomarker of kidney function in a sample of the Brazilian population. Method: Cross-sectional observational study conducted in São Paulo (SP, Brazil), in which a random adult population was interviewed. Results: A total of 1138 subjects were interviewed, with a median age of 36 years old (27–52); 55.1% were female. Regarding the “creatinine” biomarker, 40.6% stated they had never performed such a test. When asked about their knowledge on the usefulness of this exam, only 19.6% knew its function. The other responses were “I don’t know” (71.6%), evaluating heart function (0.9%) and liver function (7.8%). Of those who reported they had already taken a creatinine test, only 29.4% correctly identified the role of creatinine. When dividing the groups into “knows” and “does not know” the function of creatinine, a statistically significant difference (p < 0.05) was observed regarding level of education, female sex, being a healthcare student/worker, having ever measured creatinine, knowing someone with kidney disease and older age. In the multivariate analysis, the main variable related to knowing the creatinine role was having previously taken the test (OR 5.16; 95% CI 3.16–8.43, p < 0.001). Conclusion: There is a significant lack of knowledge about creatinine and its use in checkups. The results indicate that greater efforts are needed from healthcare professionals to raise awareness on the role of serum creatinine.

Resumo Introdução: A doença renal crônica costuma ser assintomática e seu diagnóstico depende da realização de exames laboratoriais, com destaque para a creatinina sérica e pesquisa de proteinúria. Objetivo: Avaliar em uma amostra da população brasileira o conhecimento sobre o papel da creatinina sérica como marcador de função renal. Método: Estudo observacional transversal realizado na cidade de São Paulo (SP, Brasil), em que foi entrevistada uma população adulta aleatória. Resultados: Foram entrevistados 1138 indivíduos, com idade mediana de 36 anos (27–52); 55,1% do sexo feminino. Com relação ao marcador “creatinina”, 40,6% afirmaram que nunca realizaram tal dosagem. Quando questionados quanto ao conhecimento sobre a utilidade desse exame, somente 19,6% sabiam a sua função. As outras respostas foram “não sei” (71,6%), avaliar o funcionamento do coração (0,9%) e fígado (7,8%). Dos que afirmaram já terem realizado o exame de creatinina, somente 29,4% acertaram a função da creatinina. Ao dividir os grupos em “sabe” e “não sabe” a função da creatinina, percebeu-se diferença estatisticamente significante (p < 0,05) em relação ao grau de escolaridade, sexo feminino, ser aluno/trabalhador da saúde, ter dosado creatinina alguma vez, conhecer alguém com doença renal e maior idade. Na análise multivariada, a principal variável relacionada com conhecer a função da creatinina foi ter realizado o exame anteriormente (OR 5,16; IC 95% 3,16–8,43, p < 0,001). Conclusão: Há grande desconhecimento sobre a creatinina e seu uso em check-ups. Os resultados indicam que é necessário maior esforço por parte dos profissionais de saúde para divulgar o papel da creatinina sérica.

https://doi.org/10.1590/2175-8239-jbn-2023-0117en

Translation, cross-cultural adaptation, and validation of health and self-management in diabetes questionnaire (HASMID-10) into Brazilian Portuguese
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Santos-de-Araújo, Aldair Darlan

; Dibai-Filho, Almir Vieira

; Pontes-Silva, André

; Rêgo, Adriana Sousa

; Santos, Dalyla Lima dos

; Mendes Júnior, Abraão Albino

; Pereira, Fábio Henrique Ferreira

; Bacelar, Solange Negreiros de Almeida

; Oliveira, Bárbara Emanoele Costa

; Tavarez, Rudys Rodolfo de Jesus

; Bassi-Dibai, Daniela

Sao Paulo Medical Journal

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2024, Volumen 142 Nº 1 elocation e2022681

Resumen: En | Texto: En | PDF: En

ABSTRACT BACKGROUND: Considering the ability of the health and self-management in diabetes questionnaire (HASMID-10) to verify the impact of self-management on diabetes, we highlight its relevance to scientific research and clinical applicability. However, to date, no study has been conducted to scientifically support its use in other languages. OBJECTIVE: To translate, cross-culturally adapt, and validate the HASMID-10 into the Brazilian Portuguese. DESIGN AND SETTING: A translation, cross-cultural adaptation, and validation study conducted at Ceuma University. METHODS: Study was conducted in accordance with the Guidelines for the Process of Cross-Cultural Adaptation of Self-Report Measures and Consensus-based Standards for the Selection of Health Measurement Instruments. We included participants of both sexes diagnosed with diabetes, aged between 18 and 64 years, and without cognitive deficits or any other limitations that would prevent them from answering the questionnaire. We assessed participants using the problem areas in diabetes (PAID) scale and HASMID-10. We assessed reliability using a test-retest model with a 7-day interval between assessments. We used intraclass correlation coefficient (ICC), 95% confidence interval (CI), standard error of measurement (SEM), minimum detectable difference (MDD), Spearman correlation coefficient, and floor and ceiling effects. RESULTS: Sample comprised 116 participants, most of whom were women, overweight, non-practitioners of physical activity, and nonsmokers. We observed significant correlations (P = 0.006; rho = −0.256) between the HASMID-10 and PAID, adequate reliability (ICC = 0.780) and internal consistency (Cronbach's alpha = 0.796). No ceiling or floor effects were observed. CONCLUSION: HASMID-10 has adequate measurement properties and may be used for Brazilians.

https://doi.org/10.1590/1516-3180.2022.0681.r1.10042023

Comparison of nutritional status and growth curves of children and adolescents in the city of Goiânia, Goiás: cross-sectional study
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Alves, Rafael Ribeiro

; Baptista, Tadeu

; Marques, Vitor Alves

; Silva, Weder Alves da

; Silva, Marcelo Henrique

; Santos, Douglas de Assis Teles

; Vieira, Carlos Alexandre

Sao Paulo Medical Journal

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2024, Volumen 142 Nº 2 elocation e2022643

Resumen: En | Texto: En | PDF: En

ABSTRACT BACKGROUND: Nutritional status and growth curves can affect cognitive development, increase the risk of infection, and contribute to the development of chronic diseases. Its etiology is related to food, socioeconomic, and maternal conditions. However, to date, no data on these parameters exist in the state of Goiás, Brazil. OBJECTIVE: To compare the nutritional status and growth curves of children and adolescents in the city of Goiânia, Goiás, Brazil. DESIGN AND SETTING: This was a cross-sectional study. A total of 529 individuals were recruited from a primary health center in the municipality. METHODS: To assess nutritional status, the sample was divided into three categories: 3–4, 5–10, and 11–19 years, with z-score classification considering body mass index for age. The classification of growth curves was performed considering the median height values for age, assuming two references: (a) young Brazilian population and (b) one recommended for international use. The independent sample T-test was used to compare anthropometric variables. RESULTS: The results showed that the classification of eutrophics represents a predominant percentage between both sexes (men: 03–04 = 55.4%; 05–10 = 57.6%; 11–19 = 53.5 % and women: 03–04 = 53.5%; 05–10 = 63.9%; 11–19 = 56.9%), and growth curves showed differences in specific periods in both sexes. CONCLUSIONS: It can be concluded that children and adolescents from the city of Goiânia present as predominance the eutrophic nutritional status, followed by the risk of overweight, underweight, obesity, and malnutrition of both sexes.

https://doi.org/10.1590/1516-3180.2022.0643.r1.010623

Agronomic practices toward coffee sustainability. A review
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Martinez, Herminia Emilia Prieto

; Andrade, Sara Adrián López de

; Santos, Ricardo Henrique Silva

; Baptistella, João Leonardo Corte

; Mazzafera, Paulo

Scientia Agricola

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2024, Volumen 81 elocation e20220277

Resumen: En | Texto: En | PDF: En

ABSTRACT The coffee sector is estimated to have a retail market value in excess of USD 83 billion, and over 125 million jobs have been created in the global coffee chain. The coffee specialty market has recently increased significantly, generating opportunities to certify coffee beans produced by sustainable practices. This avoids practices potentially harmful to the environment. Agroforestry, organic farming, intercropping, and soil conservation strategies are examples of sustainable alternatives in the production of coffee. In this review, we focus on practices for the sustainable management of coffee plantations that can help farmers fight problems caused by global warming. More specifically, we address soil organic matter and microbiota, the use of Urochloa grass as intercrop in coffee plantations, shading systems (including agroforestry), and organic coffee production. We concluded that from the agronomic viewpoint, we already have production techniques that can replace traditional ones with significant advantages accruing to the quality of coffee orchard ecosystems. Nevertheless, we need scientific research efforts to deal with the existing gaps and the engagement of the whole coffee chain as a means of guaranteeing an adequate profit to those smallholders who adopt and maintain sustainable practice and are capable of bringing several positive changes to the coffee crop, including the use of microbia-based commercial products and new organic sources of nutrients to complement chemical fertilizers and improve coffee quality.

https://doi.org/10.1590/1678-992x-2022-0277

Teoria da Mente e Empatia em Adultos Típicos: Uma Revisão de Escopo
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Silva, Paulo Henrique Dias

; Panciera, Sara Del Prete

Psico-USF

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Sep 2023, Volumen 28 Nº 3 Paginas 533 - 546

Resumen: En Es Pt | Texto: En Es Pt | PDF: En | PDF: Es | PDF: Pt

Abstract Theory of mind and empathy constitute sociocognitive skills central to understanding the social world and formulating responses within social contexts. However, studies continue to face the challenge of clarifying their boundaries and unraveling the presumed connections between them. This study aimed to conduct a scoping review of the conceptual interplay between theory of mind and empathy in research exploring socio-individual differences in typical adults, while also organizing these findings according to thematic categories. A total of 62 articles were analyzed, revealing five different models of relations between theory of mind and empathy, as well as three thematic production nuclei linked to social behavior, physiological variations in daily life, and cognitive, affective, and social variations. The study also discusses advancements and limitations in this field, pointing out both a fruitful production and the need to advance in the construction of more precise parameters in this area.

Resumen La teoría de la mente y la empatía son habilidades sociocognitivas implicadas en la comprensión del mundo social y la elaboración de respuestas en contextos sociales. Sin embargo, todavía es necesario avanzar en la precisión con la que las investigaciones presentan estos constructos y las relaciones entre ellos. El objetivo de este estudio fue realizar una revisión de alcance de las relaciones conceptuales entre la teoría de la mente y la empatía en las investigaciones sobre las diferencias socio-individuales en los adultos típicos, así como organizar estas producciones según categorías temáticas. Se analizaron 62 artículos y fueron identificados cinco modelos diferentes de relación entre la teoría de la mente y la empatía y tres núcleos de producción temática: comportamiento social, variaciones fisiológicas y variaciones cognitivas, afectivas y sociales. También se discuten los avances y las limitaciones en esta área, señalando tanto una producción fructífera como la necesidad de avanzar en la construcción de parámetros más precisos en este campo.

Resumo Teoria da mente e empatia são habilidades sociocognitivas implicadas na compreensão do mundo social e elaboração de respostas em contextos sociais. Entretanto, é preciso ainda avançar na precisão como as pesquisas apresentam esses constructos e as relações entre eles. O objetivo deste estudo foi realizar uma revisão de escopo a respeito das relações conceituais apontadas entre teoria da mente e empatia em pesquisas que investigam diferenças socioindividuais em adultos típicos, bem como organizar essas produções em função de categorias temáticas. Foram analisados 62 artigos, sendo observados cinco diferentes modelos de articulações conceituais entre teoria da mente e empatia e três núcleos de produção temática, ligados ao comportamento social, às variações fisiológicas na vida cotidiana, e, às variações cognitivas, afetivas e sociais. Discutem-se também avanços e limitações nessa área, apontando-se tanto para uma profícua produção como para a necessidade de se avançar na construção de parâmetros mais precisos nessa área.

https://doi.org/10.1590/1413-82712023280309

Crop-Livestock Integration: Attack of Spodoptera frugiperda (Lepidoptera: Noctuidae) on transgenic maize and Bachiaria brizantha (Poaceae)
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Carvalho, Paulo Henrique Baêta Nogueira de

; Faustino Júnior, Wilson

; Caldeira, Zaira Vieira

; Silva, Ricardo Siqueira da

; Veloso, Ronnie Von dos Santos

; Soares, Marcus Alvarenga

Revista Ceres

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Ago 2023, Volumen 70 Nº 4 Paginas 91 - 96

Resumen: En | Texto: En | PDF: En

ABSTRACT The Crop-Livestock Integration system has sustainable potential. But pests such as the defoliating caterpillar Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) can reduce the productivity of this system. The objective was to report transgenic maize and Brachiaria brizantha (A. Rich.) (Poaceae) plants attacked by S. frugiperda in the Crop-Livestock Integration system. Feroz VIP3 ® transgenic maize (SYN8A98 TLTG Viptera) and B. brizantha MG-5 Xaraés plants attacked by S. frugiperda were evaluated 20 days after planting, weekly and for 28 days. The transgenic maize plants were less attacked by S. frugiperda than those of B. brizantha. The negative impact of this pest on B. brizantha suggests the planning and adopting strategies for its control, such as the use of traps, resistant cultivars, and biological or chemical products, minimizing losses in animal production and, consequently, in human food.

https://doi.org/10.1590/0034-737x202370040012

[SciELO Preprints] - Offer and participation in corporal practices and physical activities in Primary Health Care: analysis from 2014 to 2022
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Carvalho, Fabio Fortunato Brasil de Guerra, Paulo Henrique Silva, Debora Bernardo da Vieira, Leonardo Araújo

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Fecha de publicación: 2023-06-16

Resumen: En Pt

Objective: to analyze the temporal trend and macro-regional distribution of the offer of collective activities of body practices and physical activities (BPPA) and the number of participants in Primary Health Care (PHC), developed by all health professionals and by Physical Education Professionals (PEF). Methods: ecological time series study, using data from the Health Information System for PHC (Sisab) between 2014 and 2022, using Joinpoint regression analysis. Results: at the national level, an increase in the number of collective BPPA and PHC participants developed by all health professionals and by PEF was identified between 2014 and 2019, followed by a reduction in both in 2020. In 2021 and 2022 further increases occurred. Conclusion: even though the Covid-19 pandemic occurred, an exceptional scenario and upward trends were identified both in the offer of collective BPPA and participants.

Objetivo: analisar a tendência temporal e distribuição macrorregional da oferta de atividades coletivas de práticas corporais e atividades físicas (PCAF) e do número de participantes na Atenção Primária (APS), desenvolvidas por todos os profissionais de saúde e por Profissionais de Educação Física (PEF). Métodos: estudo ecológico de série temporal, usando dados do Sistema de Informação em Saúde para a Atenção Básica (Sisab) entre 2014 e 2022, por meio da análise de regressão Joinpoint. Resultados: em âmbito nacional, identificou-se aumento do quantitativo de atividades coletivas de PCAF e de participantes na APS desenvolvidas por todos os profissionais de saúde e por PEF entre 2014 e 2019, seguido de uma redução de ambos em 2020. Em 2021 e 2022 ocorreu novo aumento. Conclusão: ainda que tenha ocorrido a pandemia da Covid-19, um cenário de excepcionalidade, foram identificadas tendências de aumento tanto na oferta de atividades coletivas de PCAF quanto de participantes.

https://doi.org/10.1590/SciELOPreprints.6240

10.

[SciELO Preprints] - Nutritional habits, physical activity, body composition, and stress among operational and administrative military police officers
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Jorge, Gabriel de Oliveira Aguiar, Diogo Gerbis Nascimento, Thiago Gomes Brito, Rebeca Lopes da Silva Alves, Paulo Henrique Ferreira Macedo, Francisco Guilherme Lima

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Fecha de publicación: 2023-06-07

Resumen: En Es Pt

Military police activity is a dangerous, stressful occupation that poses health risks. Nutritional habits, physical activity, body composition and perceived stress, in addition to being interrelated, influence components of professional performance, such as work motivation, general self-efficacy and absenteeism. The objective was to compare nutritional habits, physical activity, body mass index and perceived stress of military police officers working in operational and administrative services, of both sexes, and to investigate the correlation between these variables. The Mann-Whitney U test was used for the comparative analysis and, for the correlational study, the Pearson correlation coefficient. Perceived stress and physical activity were inversely correlated (r=-0.268; p<0.001). Nutritional habits correlated significantly: with physical activity (r=0.381; p<0.001), directly; and, conversely, body mass index (r=0.256; p<0.001) and perceived stress (r=-0.201; p<0.01). Military police officers from the operational service had significantly higher body mass index (U=3695; p<0.001) and physical activity (U=3776; p<0.001) than their counterparts from the administrative service. Men had significantly higher body mass index (U=1333; p<0.001) and physical activity (U=2205; p<0.01) than women, who had significantly higher stress levels than men (U=1927; p<0.001). The correlations and significant differences observed point to the need to implement personnel and health management policies aimed at improving the lifestyle, body composition and stress of military police officers. Study limitations and future directions are discussed.

La actividad de la policía militar es una ocupación peligrosa y estresante que presenta riesgos para la salud. Hábitos alimentarios, actividad física, composición corporal y estrés percibido, además de estar interrelacionados, influyen en componentes del desempeño profesional, como motivación para el trabajo, autoeficacia general y ausentismo. El objetivo fue comparar hábitos nutricionales, actividad física, índice de masa corporal y estrés percibido de policías militares que trabajan en servicios operativos y administrativos, de ambos sexos, e investigar la correlación entre estas variables. Para el análisis comparativo se utilizó la prueba U de Mann-Whitney y, para el estudio correlacional, el coeficiente de correlación de Pearson. Estrés percibido y actividad física se correlacionaron inversamente (r=-0,268; p<0,001). Hábitos nutricionales correlacionaron significativamente: con actividad física (r=0,381; p<0,001), directamente; y, por el contrario, con índice de masa corporal (r=0,256; p<0,001) y estrés percibido (r=-0,201; p<0,01). Los policías militares del servicio operativo presentaron índice de masa corporal (U=3695; p<0,001) y actividad física (U=3776; p<0,001) significativamente mayores que sus homólogos del servicio administrativo. Hombres tenían un índice de masa corporal significativamente mayor (U=1333; p<0,001) y actividad física (U=2205; p<0,01) que las mujeres, quienes tenían niveles de estrés significativamente más altos que los hombres (U=1927; p<0,001). Las correlaciones y diferencias significativas observadas apuntan a necesidad de implementar políticas de gestión de personal y salud dirigidas a mejorar el estilo de vida, composición corporal y estrés de los policías militares. Se discuten limitaciones del estudio y direcciones futuras.

A atividade policial militar é uma ocupação perigosa, estressante e que impõe riscos à saúde. Os hábitos nutricionais, atividade física, composição corporal e estresse percebido, além de relacionarem-se entre si, influenciam componentes do desempenho profissional, tais como motivação para o trabalho, autoeficácia geral e absenteísmo. O objetivo deste estudo foi comparar hábitos nutricionais, atividade física, índice de massa corporal e estresse percebido de policiais militares que atuam no serviço operacional e administrativo, de ambos os sexos, e investigar a correlação entre essas variáveis. Utilizou-se o teste U de Mann-Whitney para a análise comparativa e, para o estudo correlacional, o coeficiente de correlação de Pearson. O estresse percebido e a atividade física correlacionaram-se inversamente (r=-0,268; p<0,001). Os hábitos nutricionais correlacionaram-se significativamente: à atividade física (r=0,381; p<0,001), diretamente; e, inversamente, ao índice de massa corporal (r=0,256; p<0,001) e ao estresse percebido (r=-0,201; p<0,01). Policiais militares do serviço operacional apresentaram índice de massa corporal (U=3695; p<0,001) e atividade física (U=3776; p<0,001) significativamente superiores aos seus congêneres do serviço administrativo. Homens apresentaram índice de massa corporal (U=1333; p<0,001) e atividade física (U=2205; p<0,01) significativamente superiores aos das mulheres, as quais apresentaram níveis de estresse significativamente superiores aos dos homens (U=1927; p<0,001). As correlações e diferenças significativas observadas alertam para a necessidade de implementação de políticas de gestão de pessoal e de saúde voltadas à melhoria do estilo de vida, da composição corporal e do estresse de policiais militares. São discutidas limitações do estudo e direções futuras.

https://doi.org/10.1590/SciELOPreprints.5988

11.

Ribosomal, mitochondrial and bacterial (Wolbachia) reference sequences for Dipetalonema gracile obtained from a wild pied tamarin (Saguinus bicolor) host in Manaus, Brazil
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COSTA, Carlos Henrique Aguiar

; CRAINEY, James Lee

; VICENTE, Ana Carolina Paulo

; CONGA, David Fernandez

; GORDO, Marcelo

; LUZ, Sérgio Luiz Bessa

; DIAS, Cindy Alves

; SILVA, Túllio Romão Ribeiro da

; FERREIRA, Caroline Coelho

; NAVA, Alessandra Ferreira Dales

Acta Amazonica

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Jun 2023, Volumen 53 Nº 2 Paginas 130 - 140

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT The primates that inhabit the rainforest surrounding the city of Manaus (Amazonas, Brazil) have long been recognised as potentially important reservoirs of emerging and re-emerging infectious diseases (ERIDs). PCR amplification of filarial sequences from wild-caught Simulium oyapockense has been used to incriminate potentially important Amazon-region ERID bridge vectors by showing they had previously fed on non-human primates. The broader use of filarial parasite sequences for the incrimination of biting insects as potentially important zoonotic disease vectors is limited by a paucity of primate-derived filarial parasite reference sequences which can be matched to the PCR amplified sequences obtained from insect-vector vectors. Here we have used shotgun sequencing to obtain reference data from an adult Dipetalonema gracile parasite which was found infecting a wild pied tamarin (Saguinus bicolor) in a peripheral region of Manaus. We report the parasite´s complete mitochondrial genome (which is 13,647 base pairs in length), 894,846 base pairs of its Wolbachia genome and 6,426 base pairs of its ribosomal DNA locus (spanning from the start of its 18S subunit to the end of its 28S subunit). Despite being critically endangered, S. bicolor is commonly encountered around the periphery of Manaus and in urban forest fragments. The reported sequences may be a useful reference tool for identifying ERID bridge vectors and potentially provide some insights into the amount and the nature of contact between primate pathogen reservoirs and the residents of Manaus.

RESUMO Os primatas que habitam a floresta tropical ao redor da cidade de Manaus (Amazonas, Brasil) há muito são reconhecidos como reservatórios potencialmente importantes de doenças infecciosas emergentes e reemergentes. Sequências de DNA de parasitas filariais detectadas por PCR em amostras de Simulium oyapockense foram usadas para demonstrar que eles haviam se alimentado anteriormente de primatas não humanos e, dessa maneira, incriminar vetores-ponte da região amazônica. O uso mais amplo de detecção de parasitas filariais para a incriminação de vetores-ponte é limitado por uma escassez de sequências referência de parasitas filarias obtidas de hospedeiros. Aqui nós usamos o sequenciamento tipo shotgun para obter dados de referência de um parasita adulto Dipetalonema gracile encontrado infectando um sauim-de-coleira, Saguinus bicolor no entorno de Manaus. Relatamos o genoma mitocondrial completo do parasita (que tem 13.647 pares de bases de comprimento), 894.846 pares de bases de seu genoma de Wolbachia e 6.426 pares de bases de seu locus de DNA ribossômico (desde o início de sua subunidade 18S até o final de sua subunidade 28S). Apesar de criticamente ameaçado, S. bicolor é comumente encontrado no entorno de Manaus e em fragmentos florestais urbanos. As sequências relatadas podem ser uma ferramenta de referência útil para identificar vetores ponte e potencialmente fornecer algumas informações sobre o contato entre reservatórios de patógenos de primatas e os moradores de Manaus.

https://doi.org/10.1590/1809-4392202201741

12.

High-throughput phenotyping as an auxiliary tool in the selection of corn hybrids for agronomic traits
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Alcântara, Júlia Ferreira de

; Santos, Regimar Garcia dos

; Baio, Fábio Henrique Rojo

; Silva Júnior, Carlos Antonio da

; Teodoro, Paulo Eduardo

; Teodoro, Larissa Pereira Ribeiro

Revista Ceres

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Ene 2023, Volumen 70 Nº 1 Paginas 106 - 113

Resumen: En | Texto: En | PDF: En

ABSTRACT High-throughput phenotyping (HTP) using vegetation indices (VIs) is an important data source for managing plant breeding programs and can be a promising tool in indirect selection. This study hypothesized that VIs are correlated with agronomic traits in corn, and therefore, HTP can be an auxiliary tool for selecting superior genotypes. The objectives were: i) to analyze the association between agronomic traits and VIs, and ii) to identify superior corn hybrids for the evaluated traits using multivariate techniques. Ten corn hybrids (AGRI 330, AGRI 340, FS575PWU, KTZ006VP3, MG545AW, MG580PW, MG711PW, MZ1780, MZ1952, and TROPI 102) were evaluated for plant height (PH), stem diameter (SD), and grain yield (GY). The VIs studied were NDVI, NDRE, EVI, GNDVI, SAVI, and MSAVI. Pearson’s correlation network was constructed to analyze the relationship between the variables, and a canonical analysis was performed to verify the inter-relationship between the variables and hybrids. The VIs evaluated are strongly positively correlated with each other and with PH. The most productive hybrids are MG545AW, FS575PWU and KTZ006VP3. Hybrid MZ1952 has higher correlations with VIs and PH. The findings reveal that VIs can be excellent auxiliary variables for selecting agronomically superior genotypes, being a promising alternative to increase corn breeding efficiency.

https://doi.org/10.1590/0034-737x202370010012

13.

BRAZILIAN SOCIETY OF HEPATOLOGY UPDATED RECOMMENDATIONS FOR SYSTEMIC TREATMENT OF HEPATOCELLULAR CARCINOMA
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CHAGAS, Aline Lopes

; LEAL, Cassia Regina Guedes

; MELLO, Vivianne Barreto de

; BARROS, Fábio Marinho Do Rego

; BITTENCOURT, Paulo Lisboa

; MATTOS, Angelo A

; AROUCHA, Dayse

; FONSECA, Leonardo G da

; SILVA, Joyce Roma Lucas de

; DOTTORI, Mariana Fonseca

; TEIXEIRA, Rosangela

; MENDES, Liliana Sampaio Costa

; REZENDE, Rosamar Eulira Fontes

; FILGUEIRA, Norma Arteiro

; COUTINHO, Anelisa K

; ARAÚJO NETO, João Marcello de

; COELHO, Henrique Sergio Moraes

; PESSOA, Mario Guimarães

; CHEINQUER, Hugo

; PARISE, Edison Roberto

; FRANÇA, Alex

; ÁLVARES-DA-SILVA, Mário Reis

; CARRILHO, Flair José

; CORAL, Gabriela P

; PINTO, Paulo de Tarso Aparecida

; PEREIRA, Leila M M Beltrão

; PARANÁ, Raymundo

; ALVES, Rogério Camargo Pinheiro

; BRANDÃO-MELLO, Carlos Eduardo

Arquivos de Gastroenterologia

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Ene 2023, Volumen 60 Nº 1 Paginas 106 - 131

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT Hepatocellular carcinoma (HCC) is the third most common cause of cancer-related mortality worldwide. The Brazilian Society of Hepatology (SBH) published in 2020 the updated recommendations for the diagnosis and treatment of HCC. Since then, new data have emerged in the literature, including new drugs approved for the systemic treatment of HCC that were not available at the time. The SBH board conducted an online single-topic meeting to discuss and review the recommendations on the systemic treatment of HCC. The invited experts were asked to conduct a systematic review of the literature on each topic related to systemic treatment and to present the summary data and recommendations during the meeting. All panelists gathered together for discussion of the topics and elaboration of the updated recommendations. The present document is the final version of the reviewed manuscript containing the recommendations of SBH and its aim is to assist healthcare professionals, policy-makers, and planners in Brazil and Latin America with systemic treatment decision-making of patients with HCC.

RESUMO O carcinoma hepatocelular (CHC) é uma das principais causas de mortalidade relacionada a câncer no Brasil e no mundo. A Sociedade Brasileira de Hepatologia (SBH) publicou em 2020 a atualização das recomendações da SBH para o diagnóstico e tratamento do CHC. Desde então, novas evidências científicas sobre o tratamento sistêmico do CHC foram relatadas na literatura médica, incluindo novos medicamentos aprovados que não estavam disponíveis na época do último consenso, levando a diretoria da SBH a promover uma reunião monotemática on-line para discutir e rever as recomendações sobre o tratamento sistêmico do CHC. Um grupo de experts foi convidado para realizar uma revisão sistemática da literatura e apresentar uma atualização, baseada em evidências científicas, sobre cada tópico relacionado ao tratamento sistêmico e a apresentar os dados e recomendações resumidas durante a reunião. Todos os painelistas se reuniram para discutir os tópicos e elaborar as recomendações atualizadas. O presente documento é a versão final do manuscrito revisado, contendo as recomendações da SBH, e seu objetivo é auxiliar os profissionais de saúde, formuladores de políticas e planejadores no Brasil e na América Latina na tomada de decisões sobre o tratamento sistêmico de pacientes com CHC.

https://doi.org/10.1590/s0004-2803.202301000-14

14.

Soybean extracts can improve plant development
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May, André

; Silva, Evandro Henrique Figueiredo Moura da

; Vieira Junior, Nilson Aparecido

; Vilela, Elke Simoni Dias

; Santos, Michelli de Souza dos

; Coelho, Luciana Fontes

; Pedrinho, Alexandre

; Batista, Bruna Durante

; Viana, Ronaldo da Silva

Scientia Agricola

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2023, Volumen 80 elocation e20210102

Resumen: En | Texto: En | PDF: En

ABSTRACT: Microbial biodiversity of an environment can contribute to plant growth and increase crop yield. Plant extracts from soybean (Glycine max (L.) Merrill) were investigated on soybean plants grown after inoculation with these extracts. Soil samples were collected from two important Brazilian soybean-growing regions to produce the extracts used in the experiments. The extracts were produced with material collected from aboveground biomass and rhizosphere of soybean plants cultivated in a controlled greenhouse (phase 1). The extracts produced in phase 1 were applied in a sequential experiment (phase 2). Phase 2 was conducted to examine the plant microbiome after the microbial alteration process in the greenhouse through seed inoculation with the extracts produced previously. Samples of aboveground biomass were collected to determine root dry matter and crop yield. Bacterial 16S rRNA sequences were processed to determine the final microbial content of soybean. The inoculated treatments had lower species diversity; however, the phyla Firmicutes and Bacteroidetes were more abundant in the treatments than in the non-inoculated treatment. The soybean plant stem in the inoculated treatment also had a positive response to enrichment of the bacterial classes Betaproteobacteria, Bacilli and Flavobacteria. Inoculation affected the microbial composition of soybean plants. The alteration of microbiome changes revealed differences for crop yield between the inoculated and non-inoculated treatments, with up to 93.5 % higher crop yields per plant according to the extract applied.

https://doi.org/10.1590/1678-992x-2021-0102

15.

Coffee crops adaptation to climate change in agroforestry systems with rubber trees in southern Brazil
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Zaro, Geovanna Cristina

; Caramori, Paulo Henrique

; Wrege, Marcos Silveira

; Caldana, Nathan Felipe da Silva

; Virgens Filho, Jorim Sousa das

; Morais, Heverly

; Yada Junior, George Mitsuo

; Caramori, Daniel Campos

Scientia Agricola

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2023, Volumen 80 elocation e20210142

Resumen: En | Texto: En | PDF: En

ABSTRACT: Adaptation to climate change is a strategy for crops to cope with the scenario of rising temperatures worldwide. In the case of Coffea arabica L., the use of agroforestry systems (AFS) with woody species is a promising practice to reduce excessive heat during the day. This study aimed to 1) evaluate air temperature changes that occur in an AFS of coffee and double alleys of rubber trees (Hevea brasiliensis Müell. Arg.) and 2) carry out an analysis of future warming scenarios by comparing the cultivation of Arabic coffee in full sun and in an AFS of double alleys of rubber trees. The microclimatic variables were measured between two rows of coffee trees at 1.0 m of height from June 2016 to June 2018. The results indicate that the AFS with double alleys of rubber trees spaced 16 m apart had an average temperature reduction from 1.4 to 2.5 °C from 10h00 to 16h00. The study also simulated temperature increases of 1.7, 2.6, 3.1, and 4.8 °C from 2018 to 2099, according to scenarios predicted by the Intergovernmental Panel on Climate Change (IPCC), and the impact in coffee production in Paraná State, Brazil. Using the climatic generator PGECLIMA_R, simulations suggest a progressive reduction of traditional areas suitable for open-grown coffee in the state. Production conditions can be maintained through the AFS, since the systems attenuate mean temperatures by 1-2 °C. We conclude that the AFS of coffee and rubber trees contribute to coffee crop adaptations to a future warmer environment.

https://doi.org/10.1590/1678-992x-2021-0142

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