Pesquisa | SciELO

Abstract Background Cardiovascular complications of COVID-19 are important aspects of the disease’s pathogenesis and prognosis. Evidence on the prognostic role of troponin and myocardial injury in Latin American hospitalized COVID-19 patients is still scarce. Objectives To evaluate myocardial injury as independent predictor of in-hospital mortality and invasive mechanical ventilation support in hospitalized patients, from the Brazilian COVID-19 Registry. Methods This cohort study is a substudy of the Brazilian COVID-19 Registry, conducted in 31 Brazilian hospitals of 17 cities, March-September 2020. Primary outcomes included in-hospital mortality and invasive mechanical ventilation support. Models for the primary outcomes were estimated by Poisson regression with robust variance, with statistical significance of p<0.05. Results Of 2,925 patients (median age of 60 years [48-71], 57.1% men), 27.3% presented myocardial injury. The proportion of patients with comorbidities was higher among patients with cardiac injury (median 2 [1-2] vs. 1 [0-2]). Patients with myocardial injury had higher median levels of brain natriuretic peptide, lactate dehydrogenase, creatine phosphokinase, N-terminal pro-brain natriuretic peptide, and C-reactive protein than patients without myocardial injury. As independent predictors, C-reactive protein and platelet counts were related to the risk of death, and neutrophils and platelet counts were related to the risk of invasive mechanical ventilation support. Patients with high troponin levels presented a higher risk of death (RR 2.03, 95% CI 1.60-2.58) and invasive mechanical ventilation support (RR 1.87, 95% CI 1.57-2.23), when compared to those with normal troponin levels. Conclusion Cardiac injury was an independent predictor of in-hospital mortality and the need for invasive mechanical ventilation support in hospitalized COVID-19 patients.

Resumo Fundamento As complicações cardiovasculares da COVID-19 são aspectos importantes da patogênese e do prognóstico da doença. Evidências do papel prognóstico da troponina e da lesão miocárdica em pacientes hospitalizados com COVID-19 na América Latina são ainda escassos. Objetivos Avaliar a lesão miocárdica como preditor independente de mortalidade hospitalar e suporte ventilatório mecânico em pacientes hospitalizados, do registro brasileiro de COVID-19. Métodos Este estudo coorte é um subestudo do registro brasileiro de COVID-19, conduzido em 31 hospitais brasileiros de 17 cidades, de março a setembro de 2020. Os desfechos primários incluíram mortalidade hospitalar e suporte ventilatório mecânico invasivo. Os modelos para os desfechos primários foram estimados por regressão de Poisson com variância robusta, com significância estatística de p<0,05. Resultados Dos 2925 pacientes [idade mediana de 60 anos (48-71), 57,1%], 27,3% apresentaram lesão miocárdica. A proporção de pacientes com comorbidades foi maior nos pacientes com lesão miocárdica [mediana 2 (1-2) vs. 1 (0-20)]. Os pacientes com lesão miocárdica apresentaram maiores valores medianos de peptídeo natriurético cerebral, lactato desidrogenase, creatina fosfoquinase, N-terminal do pró-peptídeo natriurético tipo B e proteína C reativa em comparação a pacientes sem lesão miocárdica. Como fatores independentes, proteína C reativa e contagem de plaquetas foram relacionados com o risco de morte, e neutrófilos e contagem de plaquetas foram relacionados ao risco de suporte ventilatório mecânico invasivo. Os pacientes com níveis elevados de troponina apresentaram um maior risco de morte (RR 2,03, IC95% 1,60-2,58) e suporte ventilatório mecânico (RR 1,87;IC95% 1,57-2,23), em comparação àqueles com níveis de troponina normais. Conclusão Lesão cardíaca foi um preditor independente de mortalidade hospitalar e necessidade de suporte ventilatório mecânico em pacientes hospitalizados com COVID-19.

https://doi.org/10.36660/abc.20220151

Iron toxicity: effects on the plants and detoxification strategies
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Lapaz, Allan de Marcos

; Yoshida, Camila Hatsu Pereira

; Gorni, Pedro Henrique

; Freitas-Silva, Larisse de

; Araújo, Talita de Oliveira

; Ribeiro, Cleberson

Acta Botanica Brasilica

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2022, Volume 36 elocation e2021abb0131

Resumo: En | Texto: En | PDF: En

ABSTRACT Iron (Fe) is an essential micronutrient for plants, as a cofactor in multi-heme cytochromes and within iron-sulfur clusters. However, Fe can be toxic at high concentrations. Free Fe in cells can disrupt the cell redox balance toward a pro-oxidant state, generating oxidative stress. The focuses of this review were to elucidate the Fe detoxification strategies used by plants, as well as describe the Fe excess effects on the plant body and its impact on the physiological, morphological and metabolic traits. Therefore, we highlight the importance of evaluating Fe toxicity and provide a paper compilation on Fe detoxification strategies and morpho-physiological responses to excess Fe, directing further research in this segment.

https://doi.org/10.1590/0102-33062021abb0131

Impacts of dam construction on the macroinvertebrate community in the Poxin-Açú, in a tropical region
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Vasco, Anderson Nascimento do

; Oliveira, Amanda Vaz de Souza

; Feitosa, Geovane Alves

; Araújo-Piovezan, Talita Guimarães

; Alves, Agripino Emanuel Oliveira

; Dantas, José Oliveira

Revista Ambiente & Água

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2021, Volume 16 Nº 6 elocation e2704

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo A regularização de rios tem papel fundamental para o desenvolvimento socioeconômico de uma região, porém resulta em alterações em larga escala no regime de fluxo natural e modifica potencialmente uma ampla gama de fatores abióticos e bióticos, sendo considerado um dos impactos ambientais mais significativo nos rios em todo o mundo. Este estudo tem como objetivo avaliar os impactos na comunidade de macroinvertebrados ocasionado pela construção de uma barragem para armazenamento de água no rio Poxím-Açú, bem como características biológicas e ecológicas locais. Foram realizadas coletas de macroinvertebrados em três pontos a jusante da barragem em dois períodos distintos: anterior a construção da barragem (2013) e posterior a barragem (2015). A qualidade da água foi classificada como de boa e excelente qualidade, respectivamente, por meio dos índices bióticos. Alterações nas comunidades de macroinvertebrados foram observadas devido as modificações do regime de vazão, como resultado da construção da barragem, que influenciou na composição e estrutura das comunidades de macroinvertebrados e se reflete nas mudanças na diversidade, equitabilidade, riqueza e número de indivíduos no período anterior e posterior a barragem.

Abstract River regularization plays an important role in socio economic development. However, it also modifies the natural flow system of the river and its biotic and abiotic characteristics, causing significant impacts on rivers. To evaluate the impacts on the macroinvertebrate community caused by dam construction on the Poxim-Açú River, metrics of composition and community structure of the macroinvertebrates were analyzed, as well as ecological and biological traits of the region. Macroinvertebrates were collected at three sites located downstream the dam, before (2013) and after (2015) dam construction. The water quality was classified as “good” to “excellent” according to the biotics indices. The alterations of the flow regime of the river after the dam construction influenced the macroinvertebrate communities, modifying their diversity, equitability, richness, and the number of individuals.

https://doi.org/10.4136/ambi-agua.2704

Low-purity crude glycerin as a nutrient substitute for corn: the effect on yields of goat organs and viscera
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Gomes, Rayane Nunes

; Paula, Talita Almeida de

; Carvalho, Francisco Fernando Ramos de

; Cordeiro, Eduardo Henrique de Araújo

; Nascimento, Hugo Fernando Araújo do

; Mendes, Giorgio Oliveira

; Oliveira, Ana Barros de

; Véras, Antonia Sherlânea Chaves

Acta Scientiarum. Animal Sciences

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2020, Volume 42 elocation e48650

Resumo: En | Texto: En | PDF: En

ABSTRACT. This study was conducted to evaluate the effects of the inclusion of low-purity crude glycerin (CG, 63.1% of glycerol) in the diets of feedlot-finished goats on the weights and yields of the non-carcass components, with are frequently used in regionals dishes (buchada and panelada). Forty castrated male goats with the initial mean body weight of 19.70 ± 2.30 kg were used. Experimental treatments consisted of inclusion of CG at levels of 0, 6, 12, and 18%, based on dry matter. The weights of the lungs, spleen, total organs (TWO), and TWO yield, as a function of the slaughter body weight, decreased linearly. It was shown that the rumen portion of the weight showed a quadratic effect, at the level of 10.71% of CG, with a minimum point of 0.37 kg. Similar behavior was observed for the reticulum, with a minimum point of 0.08 kg, at the level of 7.5% of CG. The weights and yields of the buchada and panelada were negatively influenced by the experimental diets. Low-purity crude glycerin may partially replace corn and be included in up to 6% of the dry matter of the finished goats' feedlot diet without adversely affecting weights and yields of organs, viscera, and regional dishes, such as buchada and panelada.

https://doi.org/10.4025/actascianimsci.v42i1.48650 354 downloads

Assessment of the Need for Dental Treatment Resulting From Dental Trauma in 12-Year-Old Brazilian Schoolchildren: A Cross-Sectional Study
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Paiva, Haroldo Neves de

; Araújo, Cibelly Mara Pereira

; Silva, Kayke Braulio

; Silva, Talita Torquato Vinhal

; Oliveira Filho, Paulo Messias de

; Paiva, Paula Cristina Pelli

Pesquisa Brasileira em Odontopediatria e Clínica Integrada

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2020, Volume 20 elocation e5105

Resumo: En | Texto: En | PDF: En

Abstract Objective: To identify the need for restorative treatment in 12-year-old Brazilian schoolchildren with dental trauma and its association with clinical and socioeconomic factors. Material and Methods: A cross-sectional population-based study was carried out with sample composed of 588 12-year-old students from the city of Diamantina, Minas Gerais, Brazil. Data were collected from August to November 2016 through clinical examination, adopting the Andreasen classification and semi-structured questionnaire to verify the etiology and location of the accident that resulted in dental trauma. Statistical analysis included the frequency distribution and bi and multivariate analysis, with 5% significance level. Results: The presence of 219 traumatized teeth in 176 students was observed (29.9%). The main lesion was enamel fracture (41.4%), followed by enamel and dentin fracture (39.4%). The presence of restorative treatment was observed only in 11.5% of students. Fall (43.5%) was the most frequent etiology, followed by accidents on the streets (35.8%). Need for treatment was present in 53.4% of adolescents. Statistically significant association between males (p=0.010), severe overjet (p<0.0001) and inadequate lip protection (p<0.0001) and presence of dental trauma was observed. Maternal schooling over 8 years of study was statistically associated with need for restorative treatment (OR = 2.047; CI: 1.099-3.813; p=0.023). Conclusion: Prevalence of dental trauma, need for restorative treatment and number of adolescents with no access to restorative treatment in this study were high, point out that the health system is unable to satisfactorily prevent dental trauma and absorb all dental treatment demand resulting from dental trauma.

https://doi.org/10.1590/pboci.2020.078 208 downloads

Spatiotemporal ecology of two Neotropical herbivorous mammals
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Dias, Douglas de Matos

; Almeida, Meyline de Oliveira Souza

; Araújo-Piovezan, Talita Guimarães de

; Dantas, José Oliveira

Papéis Avulsos de Zoologia

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2019, Volume 59 elocation e20195910

Resumo: En | Texto: En | PDF: En

Abstract On this study, we used camera traps in a Semi deciduous Seasonal Forest, northeast of Brazil, to estimate the frequencies of occurrence of two Neotropical herbivorous mammals: the spotted paca (Cuniculus paca) and the tapeti (Sylvilagus brasiliensis), analyzing their seasonal variations of spatial distribution. We also characterized the activity pattern of the species and their seasonal variation. The herbivorous frequencies of occurrence were constant during all the seasons. In general, both species were mostly active at night. However, between the rainy and dry season, we identified differences in spotted paca activity peaks. Here we present one of the first studies on the tapeti, whose ecology is understudied. Our results also show a general view of the spotted paca and tapeti behavior strategies to seasonal variations. Due to the scarce food resource in the dry season, possibly these herbivorous need to search for different kinds of food available IFS around.

https://doi.org/10.11606/1807-0205/2019.59.10 1130 downloads

Effectiveness of first-wave protease inhibitors in hepatitis C virus genotype 1 infection: a multicenter study in Brazil
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Lobato, Cirley Maria de Oliveira

; Balassiano, Natalia

; Hyppolito, Elodie Bomfim

; Sanchez-Lermen, Rafaela Liz Pellegrim

; Signorelli, Izabelle Venturini

; Nicacio, Miguel Yasuo Tomita

; Firmino Filho, Alberto Pereira

; Andrade, Thais Guaraná de

; Lima, José Milton de Castro

; Arruda, Talita Amorim de

; Coutinho, Fernanda Schwanz

; Araujo, Everton Felipe do Vale

; Esmeraldo, Ticiana Mota

; Cortez, Erlon

; Capeli, Rafaela Lorenzon Aragão

; Matos, Melquior Brunno Mateus de

; Pessoa, Francisco Sérgio Rangel

; Oliveira, Hélder Cássio de

; Arruda, Érico Antônio Gomes de

; Gonçalves, Patrícia Lofêgo

; Araújo Filho, Antônio Haroldo

; Esberard, Eliane Bordalo Cathalá

; Souto, Francisco José Dutra

Revista da Sociedade Brasileira de Medicina Tropical

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Fev 2018, Volume 51 Nº 1 Páginas 14 - 20

Resumo: En | Texto: En | PDF: En

Abstract INTRODUCTION: In 2013, combination therapy using peginterferon, ribavirin, and boceprevir or telaprevir was introduced to treat hepatitis C virus genotype 1 infection in Brazil. The effectiveness of this therapy in four Brazilian regions was evaluated. METHODS: Clinical and virological data were obtained from patients of public health institutions in five cities, including sustained virological response (SVR) and side effects. Patients with advanced fibrosis (F3/4), moderate fibrosis (F2) for > 3 years, or extra-hepatic manifestations were treated according to Ministry of Health protocol. Treatment effectiveness was verified by using bivariate and multivariate analysis; p-values of < 0.05 were considered significant. RESULTS: Of 275 patients (64.7% men; average age, 57 years old), most (61.8%) were treatment-experienced; 53.9% had subgenotype 1a infection, 85.1% had advanced fibrosis, and 85.5% were treated with telaprevir. SVR was observed in 54.2%. Rapid virological response (RVR) was observed in 54.6% of patients (data available for 251 patients). Overall, 87.5% reported side effects and 42.5% did not complete treatment. Skin rash, severe infection, and death occurred in 17.8%, 2.5%, and death in 1.4% of cases, respectively. SVR was associated with treatment completion, RVR, and anemia. CONCLUSIONS: The effectiveness of hepatitis C virus triple therapy was lower than that reported in phase III clinical trials, possibly owing to the prioritized treatment of patients with advanced liver fibrosis. The high frequency of side effects and treatment interruptions observed supported the decision of the Brazilian authorities to suspend its use when safer and more effective drugs became available in 2015.

https://doi.org/10.1590/0037-8682-0279-2017 1312 downloads

Processamento e estabilidade de uma bebida de caju e yacon durante o armazenamento sob refrigeração
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Dionisio, Ana Paula

; Wurlitzer, Nedio Jair

; Pinto, Claudia Oliveira

; Goes, Talita de Souza

; Borges, Maria de Fatima

; Araújo, Idila Maria da Silva

Brazilian Journal of Food Technology

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2018, Volume 21 elocation e2016189

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo O objetivo do presente trabalho foi avaliar a estabilidade de uma bebida de caju e yacon durante o armazenamento sob refrigeração. A bebida, composta por polpa de caju e extrato de yacon (proporção 1:1, v/v), foi pasteurizada a 85 °C por 90 segundos e armazenada sob refrigeração (5 °C). No tempo inicial e a cada 45 dias do período de estocagem, foram determinados os teores de compostos bioativos (ácido ascórbico - AA e polifenóis extraíveis totais - PET), a atividade antioxidante total (AAT), os sólidos solúveis totais (SST), a acidez titulável (AT), o pH e a cor (L*, a* e b*). Após 225 dias de estocagem, a bebida apresentou diminuição expressiva da sua AAT, medida pelo método FRAP (Ferric Reducing Antioxidant Power), de aproximadamente 22%, assim como houve queda nas concentrações de AA e PET, em torno de 20 e 16%, respectivamente. A bebida atendeu ao padrão estabelecido pela legislação brasileira para coliformes a 45 °C e Salmonella sp. (ausência/25 mL); porém, em 135 dias de armazenamento, a bebida apresentou contagem de bolores e leveduras superior a 104 UFC/mL. Neste sentido, embora a bebida tenha apresentado níveis consideráveis de compostos bioativos e AAT durante os 225 dias de armazenamento refrigerado (5 °C), recomenda-se que o produto seja armazenado por até 90 dias sob refrigeração (5 °C), período em que a bebida manteve seus componentes bioativos e boa qualidade microbiológica e sensorial.

Abstract The objective of the present study was to evaluate the stability of a beverage produced with cashew apple and yacon during refrigerated storage. The beverage, composed of cashew pulp and yacon extract (ratio 1: 1, v / v), was pasteurized at 85 °C for 90 seconds and stored at 5 °C. The following components were evaluated at zero time (after processing and packaging) and every 45 days during the storage period: the bioactive compound contents (ascorbic acid (AA), total extractable polyphenols (PET), total antioxidant activity (AAT), total soluble solids, titratable acidity (AT), pH and colour (L *, a * and b *). After 225 days of storage, the beverage presented a 22% decrease in AAT as analysed by the FRAP method (Ferric Reducing Antioxidant Power), as well as a drop in the AA and PET concentrations of around 20 and 16%, respectively. The beverage complied with the microbiological standard established by Brazilian legislation for coliforms at 45 °C and Salmonella sp. (absence/25 mL), but after 135 days storage, the beverage had a yeast and mould count greater than 104 CFU/mL. Thus although the beverage presented considerable levels of bioactive compounds and AAT during the 225 days of refrigerated storage (5 °C), it is recommended that it be stored for up to 90 days under refrigeration (5 °C), considering the microbiological, sensorial quality and maintenance of its bioactive components during this period.

https://doi.org/10.1590/1981-6723.18916 4340 downloads

Embolização de pseudoaneurisma com fístula arteriovenosa de artéria femoral profunda decorrente de ferimento por arma branca: relato de caso
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Cavalcante, Leonardo Pessoa

; Scarpari, Rafael

; Queiróz, Talita Mendes de

; Araújo, Antônio Oliveira de

; Souza, José Emerson dos Santos

; Parisati, Marcos Henrique

; Rocha, Ricardo Dias da

; Bernardes, Marcos Velludo

Jornal Vascular Brasileiro

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Jun 2015, Volume 14 Nº 2 Páginas 182 - 185

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

As complicações locais de uma lesão arterial penetrante incluem hematoma, pseudoaneurisma e formação de fístula arteriovenosa. A artéria femoral profunda, por sua localização anatômica, é sede infrequente de lesões traumáticas. Relatamos um caso de paciente jovem, vítima de agressão por arma branca em face posterior de coxa, em que foi diagnosticada, tardiamente, lesão de ramo descendente da artéria femoral profunda, sendo então tratada com técnica endovascular. A revisão de literatura corrobora a raridade do caso, sendo a maioria dos casos de lesão traumática de artéria femoral profunda relatada como decorrente de complicação de procedimentos ortopédicos ou fraturas envolvendo o fêmur proximal.

Abstract The local complications of penetrating injuries involving arteries include hematoma, pseudoaneurysm and arteriovenous fistulas. Traumatic injuries to the deep femoral artery are uncommon because of its anatomic location. We report the case of a young male patient who was victim of a stab wound to the posterior thigh who was later diagnosed with an injury to the descending branch of the deep femoral artery and treated using endovascular techniques. A review of the literature confirmed the rarity of the case, since the majority of cases of traumatic injuries to the deep femoral artery that have been reported were due to complications during orthopedic procedures or fractures involving the proximal femur.

https://doi.org/10.1590/1677-5449.0081 2705 downloads

10.

Floristic surveys of aquatic macrophytes in reservoirs in the Agreste zone of Pernambuco State, Brazil
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Xavier, Leonardo Rafael Chaves Coelho

; Araújo, Talita Oliveira

; Nascimento, Paula Regina Fortunato

; Pereira, Sonia Maria Barreto

Brazilian Journal of Botany

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2012, Volume 35 Nº 4 Páginas 313 - 318

Resumo: En | Texto: En | PDF: En

We surveyed the aquatic macrophytes in reservoirs in Camocim de São Félix in the Agreste zone of Pernambuco State, Brazil. Plants were collected on a bimonthly schedule from November/2008 to May/2009 in four reservoirs, and 33 taxa distributed among 23 families were encountered. The family Cyperaceae had the greatest number of species, followed by Lemnaceae. The predominant biologic form was emergent (33.3%) reflecting the extensive shorelines around the reservoirs analyzed.

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