Recent publications
Introduction
Physical activity is an important tool to manage systemic arterial hypertension. However, less is known about the relationship of physical activity with the number of antihypertensive drugs used by older adults.
Objective
The aim of this study was to compare the number of antihypertensive drugs used by older female adults (aged ≥ 60 years) with a low level of physical activity with the number used by those with a high level of physical activity, and to verify how many participants used more than two antihypertensive drugs.
Methods
Twenty-eight physically active older women with systemic arterial hypertension who participated in a physical activity program for community-dwelling older female adults were divided into two groups: participants who presented lower habitual physical activity levels were placed in group 1 and participants that presented higher habitual physical activity levels were placed in group 2, according to the Baecke questionnaire. In addition, the number of antihypertensive drugs used by participants was collected.
Results
The number of prescribed antihypertensive drugs was 2.0 (median) for both groups investigated. There was no significant difference between groups regarding the number of antihypertensive tablets prescribed (p>0.05). Although there was no statistical difference, a higher proportion of participants from the lower physical activity group used more than two antihypertensive drugs.
Conclusion
The level of habitual physical activity did not affect the number of antihypertensive tablets used by hypertensive elderly women. Level of evidence II; Therapeutic studies – investigation of treatment results.
Keywords:
Exercise; Physical activity; Blood pressure; Therapeutics; Hypertension; Tablet
Introduction
Physical activity is an important tool to manage systemic arterial hypertension. However, less is known about the relationship of physical activity with the number of antihypertensive drugs used by older adults.
Objective
The aim of this study was to compare the number of antihypertensive drugs used by older female adults (aged ≥ 60 years) with a low level of physical activity with the number used by those with a high level of physical activity, and to verify how many participants used more than two antihypertensive drugs.
Methods
Twenty-eight physically active older women with systemic arterial hypertension who participated in a physical activity program for community-dwelling older female adults were divided into two groups: participants who presented lower habitual physical activity levels were placed in group 1 and participants that presented higher habitual physical activity levels were placed in group 2, according to the Baecke questionnaire. In addition, the number of antihypertensive drugs used by participants was collected.
Results
The number of prescribed antihypertensive drugs was 2.0 (median) for both groups investigated. There was no significant difference between groups regarding the number of antihypertensive tablets prescribed (p>0.05). Although there was no statistical difference, a higher proportion of participants from the lower physical activity group used more than two antihypertensive drugs.
Conclusion
The level of habitual physical activity did not affect the number of antihypertensive tablets used by hypertensive elderly women. Level of evidence II; Therapeutic studies – investigation of treatment results.
Keywords:
Exercise; Physical activity; Blood pressure; Therapeutics; Hypertension; Tablet
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.
KEY WORDS (MeSH terms):
Growth charts; Nutritional status; Body mass index; Public health; Obesity
AUTHORS’ KEY WORDS:
Body weights and measures; Body weight; Unified health system
BACKGROUND
Dynapenia is a risk factor of mortality. Therefore, the development of low-cost and easy-to-apply tools is essential to optimize the health surveillance actions of older people.
OBJECTIVES
To compare the time spent on habitual physical activity (HPA) and sedentary behavior (SB) among dynapenic and non-dynapenic older adults and ascertain the predictive ability of these behaviors on outcome.
DESIGN AND SETTING
A cross-sectional population epidemiological survey was conducted involving 208 older adults.
METHODS
HPA and SB were quantified using the International Physical Activity Questionnaire, and dynapenia was identified by handgrip strength (women: 18.37 kgf; men: 26.75 kgf).
RESULTS
The prevalence was 24.50%. In both sexes, dynapenic individuals reported a HPA median time of 70.00 minutes/week (min/wk), while non-dynapenic women and men reported HPA median times of 240.00 and 280.00 min/wk, respectively (P < 0.05). For SB among dynapenic individuals, a median of 388.75 min/day was observed in women and 428.57 min/d in men. In contrast, non-dynapenic women and men had 291.42 and 274.28 min/day in SB (P < 0.05), respectively. The best cutoff HPA to discriminate the outcome was 150.00 min/wk in women (sensitivity: 73.30%; specificity: 60.67%) and 140.00 min/wk in men (sensitivity, 71.43%; specificity, 61.54%). The best cutoff SB was 381.43 min/day in women (sensitivity, 53.30%; specificity, 84.80%) and 351.43 min/day in men (sensitivity, 71.43%; specificity, 73.85%).
CONCLUSION
Older individuals with dynapenia spent less time on HPA and more time in SB. Furthermore, HPA was found to be a better discriminator of dynapenic individuals, and SB better discriminated non-dynapenic individuals.
KEY WORDS (MeSH terms):
Motor activity; Aging; Epidemiology; Sedentary behavior; Muscle strength; Aged
AUTHORS’ KEY WORDS:
Sitting time; Grip strength; Physical activities; Sedentary time; Elderly
Resumo O objetivo deste artigo é examinar o mecanismo peticionário como modalidade particular de comunicação política entre os vassalos do ultramar português, em especial da América Portuguesa, e o monarca, a partir de seu Conselho Ultramarino. Pretende-se perscrutar os vários usos das petições e seus enquadramentos nas lógicas governativas da colonização enquanto canal institucional amplo, multifacetado e dinâmico de relacionamento entre as pessoas e o poder régio sediado em Lisboa. Considerando as potencialidades analíticas da reconstituição ordenada do circuito petição - forma de tramitação - resposta, parte-se do corpus documental tutelado pelo Arquivo Histórico Ultramarino, cotejando tanto a documentação peticionária propriamente dita, na forma dos Avulsos, como os circuitos decisórios plasmados nos livros de registro da instituição (Códices). Em um primeiro momento, é feita uma análise discursivo-formal das petições. Em seguida, as dinâmicas jurídico-institucionais de tratamento e a resposta das petições das partes são discutidas, a partir dos Livros de Registro de Provisões do Conselho Ultramarino. A principal hipótese defendida é a de que as petições e suas vias de tramitação e resposta sinalizam práticas de governança, modelos de submissão e formas de controle nem sempre explicitados pela historiografia ou consideradas como meramente protocolares. Elas são, não obstante, reveladoras das práticas institucionais do complexo organizacional régio português em suas relações com as sociedades coloniais.
Objective:
to identify the vaccination and serological status against hepatitis B among community health workers; to vaccinate against hepatitis B virus and to evaluate the immune response of susceptible workers.
Method:
phase I, cross-sectional and descriptive study, among community health workers in a capital city of the Midwest region, through a self-administered questionnaire, checking of vaccination cards, and blood collection for testing of serological markers for hepatitis B. Phase II, cohort study carried out in vaccinated non-immune workers identified in phase I. They received one dose of vaccine (challenge dose) and serological testing.
Results:
a total of 109 workers participated in the study. Most had vaccination record (97; 89.0%) and vaccination completeness (75; 77.3%), while the isolated anti-HBs (Antibodies against hepatitis B virus) marker was detected in 78 (71.6%) workers. The prevalence of hepatitis B virus exposure was 8.2%. Of the ten non-immune vaccinated workers, after challenge dose, one remained susceptible.
Conclusion:
although most workers are vaccinated and show immunological response to hepatitis B, susceptibility after challenge dose was identified. Therefore, it is necessary to have a surveillance program of the vaccination situation and serological status for this virus, to promote these workers' safety.
Resumen Objetivo: identificar la situación de la vacunación y serología contra la hepatitis B entre agentes comunitarios de la salud, vacunar contra el virus de la hepatitis B y evaluar la respuesta inmunológica de los agentes susceptibles. Método: fase I, estudio transversal y descriptivo, entre agentes comunitarios de la salud de una capital de la región centro oeste, por medio de cuestionario autoadministrado, verificación del carné de vacunación y extracción de sangre para comprobar los marcadores serológicos para la hepatitis B. Fase II, estudio de cohorte realizado en trabajadores vacunados no inmunes e identificados en la Fase I; estos recibieron una dosis de la vacuna (dosis de desafío) y realizaron el test serológico. Resultados: participaron del estudio 109 agentes. La mayoría tenía registro de vacunación (97; 89,0%) y de cobertura de vacunación (75; 77,3%); el marcador anti-HBs (Anticuerpos contra el virus de la hepatitis B) aislado fue detectado en 78 (71,6%) de los agentes. La prevalencia de exposición al virus de la hepatitis B fue de 8,2%. De los diez agentes vacunados no inmunes, después de la dosis desafío, uno permaneció susceptible. Conclusión: a pesar de que la mayoría de los trabajadores estaban vacunados y presentaron respuesta inmunológica para la hepatitis B, la susceptibilidad, después de la dosis desafío, fue identificada. Por tanto, es necesario que exista un programa de vigilancia de la situación de vacunación y estado serológico para este virus, para promover la seguridad de estos trabajadores.
Resumo Objetivo: identificar a situação vacinal e sorológica contra hepatite B entre agentes comunitários de saúde; vacinar contra o vírus da hepatite B e avaliar a resposta imunológica dos agentes susceptíveis. Método: fase I, estudo transversal e descritivo, entre agentes comunitários de saúde de uma capital da região Centro-oeste, por meio de questionário autoaplicável, conferência do cartão vacinal e coleta de sangue para testagem dos marcadores sorológicos para hepatite B. Fase II, estudo de coorte realizado em trabalhadores vacinados não imunes e identificados na fase I. Estes receberam uma dose da vacina (dose desafio) e teste sorológico. Resultados: participaram do estudo 109 agentes. A maioria tinha registro de vacinação (97; 89,0%) e completude vacinal (75; 77,3%), já o marcador anti-HBs (anticorpos contra o vírus da hepatite B) isolado foi detectado em 78 (71,6%) agentes. A prevalência de exposição ao vírus da hepatite B foi de 8,2%. Dos dez agentes vacinados não imunes, após a dose desafio, um permaneceu susceptível. Conclusão: apesar da maioria dos trabalhadores estarem vacinados e apresentarem resposta imunológica para hepatite B, a suscetibilidade após a dose desafio foi identificada. Portanto, é necessário que haja um programa de vigilância da situação vacinal e estado sorológico para este vírus, para promover a segurança destes trabalhadores.
Objetivo: investigar la prevalencia de lesiones cutáneas y factores asociados con el uso de respiradores N95 en profesionales de la salud de Brasil. Método: estudio transversal realizado con 11.368 profesionales de la salud en el que se empleó un método de muestreo dirigido por encuestados adaptado para entornos en línea. Se ejecutaron análisis univariados y multivariados para investigar la asociación entre la variable “lesiones cutáneas por utilizar respiradores N95” y sexo, categoría profesional, lugar de trabajo, capacitación, diagnóstico de COVID-19 y disponibilidad de suficiente provisión de Equipo de Protección Personal de buena calidad. Resultados: la prevalencia de lesiones cutáneas fue del 61,8%. Las mujeres fueron 1,203 veces (IC 95%: 1,154-1,255) más propensas a desarrollar lesiones que los hombres. La probabilidad de lesiones cutáneas en psicólogos (RP=0,805; IC 95%: 0,678-0,956) y dentistas (RP=0,884; IC 95%: 0,788-0,992) fue menor en comparación con la encontrada en los profesionales de Enfermería. Los profesionales con diagnóstico positivo de COVID-19 y que trabajan en la Unidad de Cuidados Intensivos son más propensos a sufrir lesiones cutáneas (RP=1,074; IC 95%: 1,042-1,107); (RP=1,203; IC 95%: 1,168-1,241), respectivamente, Conclusión: la prevalencia de lesiones cutáneas causadas por utilizar respiradores N95 fue del 61,8% y estuvo asociada al sexo femenino, a la categoría profesional, al lugar de trabajo, a la capacitación, a diagnóstico de COVID-19 y a la disponibilidad de suficiente provisión de Equipo de Protección Personal de buena calidad.
Objetivo: investigar a prevalência de lesões de pele e fatores associados ao uso de respiradores N95 entre profissionais de saúde no Brasil. Método: estudo transversal realizado com 11.368 profissionais de saúde por meio de um método de amostragem dirigido por respondentes adaptado para ambientes online. Análises univariadas e multivariadas foram realizadas para investigar a associação entre a variável “lesão de pele com uso de respirador N95” e sexo, categoria profissional, local de trabalho, treinamento, diagnóstico de COVID-19 e disponibilidade suficiente de equipamentos de proteção individual de qualidade. Resultados: a prevalência de lesões cutâneas foi de 61,8%. As mulheres foram 1,203 vezes (IC 95%: 1.154-1.255) mais propensas a desenvolver uma lesão do que os homens. As chances de lesão de pele em psicólogos (RP=0,805; IC 95%: 0,678-0,956) e dentistas (RP=0,884; IC 95%: 0,788-0,992) foram menores quando comparados aos profissionais de Enfermagem. Profissionais com diagnóstico positivo para COVID-19 e que trabalham em Unidade de Cuidados Intensivos têm maior chance de apresentar lesões de pele (RP=1,074; IC 95%: 1,042-1,107); (RP=1,203; IC 95%: 1,168- 1,241), respectivamente. Conclusão: a prevalência de lesões de pele causadas pelo uso do respirador N95 foi de 61,8% e esteve associada ao sexo feminino, categoria profissional, local de trabalho, treinamento, diagnóstico de COVID-19 e disponibilidade suficiente de equipamentos de proteção individual de qualidade.
Objective: to investigate the prevalence of skin lesions and factors associated with the use of N95 respirators among health professionals in Brazil. Method: cross-sectional study conducted with 11,368 health professionals using a respondent-driven sampling method adapted for online environments. Univariate and multivariate analyses were performed to investigate the association between the “skin lesions with the use of N95 respirators” variable and gender, professional category, workplace, training, COVID-19 diagnosis, and availability of sufficient and high-quality Personal Protective Equipment. Results: the prevalence of skin lesions was 61.8%. Women were 1.203 times (95% CI: 1.154-1.255) more likely to develop a lesion than men. The chances of skin lesions in psychologists (PR=0.805; 95% CI: 0.678-0.956) and dentists (PR=0.884; 95% CI: 0.788-0.992), were lower when compared to Nursing professionals. Professionals with a positive COVID-19 diagnosis and working in the Intensive Care Unit have an increased chance of presenting skin lesions (PR=1.074; 95% CI: 1.042-1.107); (PR=1.203; 95% CI: 1.168-1.241), respectively. Conclusion: the prevalence of skin lesions caused by the use of N95 respirators was 61.8% and was associated with female gender, professional category, workplace, training, COVID-19 diagnosis, and availability of sufficient and highquality Personal Protective Equipment.
High-production cows require facilities providing comfortable environments to enhance production efficiency and sustain milk quality. This study evaluated the impact of climatizing the feeding area post-morning and afternoon milking on environmental variables, thermal comfort indices, and the yield and quality of milk in lactating Girolando cows. The experiment followed a 4 × 4 Latin square design with four treatments across four experimental periods, using four cows per treatment. The post-milking climate control treatments included: shading; shading + ventilation; shading + ventilation + shower; and an evaporative adiabatic cooling system. The evaporative adiabatic cooling system proved most effective in maintaining thermal conditions near the comfort level for dairy cows, as indicated by lower thermal comfort indices. This system also enhanced morning and overall milk production. However, the climate control systems did not significantly affect the contents of protein, fat, or lactose in the milk.
Key words:
temperature; dairy cattle; thermal comfort; productivity
The growing use of synthetic chemical compounds/substances in vector control of mosquitoes, associated with their adverse effects on the environment and non-target organisms, has demanded the development of eco-friendly alternatives. In this context, this study aimed to evaluate the larvicidal action of different cellulose microcrystalline (CMs) concentrations and investigate their toxicity mechanisms in Culex quinquefasciatus fourth instar larvae as a model species. Probit analysis revealed that the median lethal concentrations (LC50) for 24 h and 36 h exposure were 100 and 58.29 mg/L, respectively. We also showed that such concentrations induced a redox imbalance in the larvae, marked by an increase in the production of reactive oxygen species (ROS) and thiobarbituric acid reactive substances (TBARS), as well as a reduction in the activity of superoxide dismutase (SOD) and catalase (CAT). Furthermore, different alterations in the external morphology of the larvae were associated with the ingestion of CMs. On the other hand, exposure of adult zebrafish (Danio rerio) to LC5024h and LC5036h for seven days did not induce any behavioral changes or alterations mutagenic, genotoxic, biochemical, or in the production of cytokines IFN-γ and IL-10. Thus, taken together, our study demonstrates for the first time that the use of CMs can constitute a promising strategy in the control of C. quinquefasciatus larvae, combining insecticidal efficiency with an “eco-friendly” approach in the fight against an important mosquito vector of several human diseases.
This work presents a starch extracted from jaboticaba seeds. The extraction yielded 22.65 ± 0.63% of a slightly beige powder (a* 1.92 ± 0.03, b* 10.82 ± 0.17 and L* 92.27 ± 0.24). The starch presented low protein content (1.19% ± 0.11) and phenolic compounds (0.58 ± 0.02 GAE. g) as contaminants. The starch granules showed small, smooth, irregular shapes and sizes between 6.1 and 9.6 µm. The starch presented a high content of amylose (34.50%±0.90) and a predominance of intermediate chain length (B1-chains 51%), followed by A-chains (26%) in the amylopectin. The SEC-MALS-DRI showed the starch had a low molecular weight (5.3⋅106 g⋅mol − 1) and amylose/amylopectin content compatible with a Cc-type starch, confirmed in the X-ray diffractogram. Thermal studies showed a low onset temperature (T0 = 66.4 ± 0.46 • C) and gelatinization enthalpy (ΔH = 9.1 ± 1.19 J g − 1) but a high-temperature range (ΔT = 14.1 ± 0.52 • C). The jaboticaba starch proved to be a promising material for food and non-food applications.
This work presents the design, synthesis, and MAO‐B inhibitor activity of a series of chalcogenyl‐2,3‐dihydrobenzofurans derivatives. Using solvent‐ and metal‐free methodology, a series of chalcogen‐containing dihydrobenzofurans 7–9 was obtained with yields ranging from 40% to 99%, using an I2/DMSO catalytic system. All compounds were fully structurally characterized using 1H and 13C NMR analysis, and the unprecedented compounds were additionally analyzed using high‐resolution mass spectrometry (HRMS). In addition, the mechanistic proposal that iodide is the most likely species to act in the transfer of protons along the reaction path was studied through theoretical calculations. Finally, the compounds 7b–e, 8a–e, and 9a showed great promise as inhibitors against MAO‐B activity.
Aims: The development of safe and effective therapies for treating paracoccidioidomycosis using computational strategies were employed to discover anti- Paracoccidioides compounds. Materials & methods: We 1) collected, curated and integrated the largest library of compounds tested against Paracoccidioides spp.; 2) employed a similarity search to virtually screen the ChemBridge database and select nine compounds for experimental evaluation; 3) performed an experimental evaluation to determine the minimum inhibitory concentration and minimum fungicidal concentration as well as cytotoxicity; and 4) employed computational tools to identify potential targets for the most active compounds. Seven compounds presented activity against Paracoccidioides spp. Conclusion: These compounds are new hits with a predicted mechanisms of action, making them potentially attractive to develop new compounds.
Often, we are interested in a quantity that is difficult or impossible to measure directly, e.g., tomorrow’s temperature. To estimate this quantity, we measure auxiliary easier-to-measure quantities that are related to the desired ones by a known dependence, and use the known relation to estimate the desired quantity. Measurements are never absolutely accurate, there is always a measurement error, i.e., a non-zero difference between the measurement result and the actual (unknown) value of the corresponding quantity. Often, the only information that we have about each measurement error is the bound on its absolute value. In such situations, after each measurement, the only information that we gain about the actual (unknown) value of the corresponding quantity is that this value belongs to the corresponding interval. Thus, the only information that we have about the value of the desired quantity is that it belongs to the range of the values of the corresponding function when its inputs are in these intervals. Computing this range is one of the main problems of interval computations. Lately, it was shown that in many cases, it is more efficient to compute the range if we first re-scale each input to the interval [0, 1]; this is one of the main ideas behind Constraint Interval Arithmetic techniques. In this paper, we explain the empirical success of this idea and show that, in some reasonable sense, this re-scaling is the best.
Interval computations usually deal with the case of epistemic uncertainty, when the only information that we have about a value of a quantity is that this value is contained in a given interval. However, intervals can also represent aleatory uncertainty—when we know that each value from this interval is actually attained for some object at some moment of time. In this paper, we analyze how to take such aleatory uncertainty into account when processing data. We show that in case when different quantities are independent, we can use the same formulas for dealing with aleatory uncertainty as we use for epistemic one. We also provide formulas for processing aleatory intervals in situations when we have no information about the dependence between the inputs quantities.
When we usually process data, we, in effect, implicitly assume that we know the exact values of all the inputs. In practice, these values come from measurements, and measurements are never absolutely accurate. In many cases, the only information about the actual (unknown) values of each input is that this value belongs to an appropriate interval. Under this interval uncertainty, we need to compute the range of all possible results of applying the data processing algorithm when the inputs are in these intervals. In general, the problem of exactly computing this range is NP-hard, which means that in feasible time, we can, in general, only compute approximations to these ranges. In this paper, we show that, somewhat surprisingly, the usual standard algorithm for this approximate computation is not inclusion-monotonic, i.e., switching to more accurate measurements and narrower subintervals does not necessarily lead to narrower estimates for the resulting range.
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Information
Address
Universidade Federal de Goiás, Campus Samambaia (Campus II), Caixa Postal 131, 74001-970, Goiânia, Goias, Brazil
Head of institution
Federal University of Goiás
Website
www.ufg.br
Phone
+55(62)35211481
Fax
+55(62)35211600