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Acute pulmonary embolism as a complication in a young male patient with a left popliteal venous aneurysm
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Contreras-Jiménez, Emmanuel

; Martínez-Quesada, Jose I.

; Miranda-Ramirez, Montserrat W.

; Anaya-Ayala, Javier E.

; Arzola-Flores, Luis H.

; Mier y Terán-Ellis, Santiago

; Cuen-Ojeda, Cesar

; Hinojosa, Carlos A.

Jornal Vascular Brasileiro

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2023, Volumen 22 elocation e20220073

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

Abstract Venous aneurysms are rare and have a prevalence of 0.1 to 0.2% in the reported series. Typically, patients do not present any symptoms, but are prone to develop deep venous thrombosis (DVT) and the most feared complication, pulmonary embolism (PE). We present the case of a previously healthy 36-year-old man who presented at the emergency department with tachycardia, dyspnea, and pleuritic pain. A thoracic computed tomography angiography (CTA) confirmed the diagnosis of acute pulmonary embolism. He was treated with systemic thrombolysis and anticoagulation. In the further workup of the cause of the embolism, computed tomography revealed a fusiform dilation of the left popliteal vein measuring 3 by 3 centimeters (cm) with an incomplete filling defect because of thrombus presence. The patient underwent open surgical repair. At one month follow-up, he was asymptomatic, and an ultrasound revealed complete patency of the popliteal vein without dilatation or thrombus.

Resumo Aneurismas venosos são raros, tendo uma prevalência de 0,1 a 0,2% nas séries relatadas. Os pacientes não costumam manifestar sintomas; entretanto, são propensos a desenvolver trombose venosa profunda e a complicação mais temida, embolia pulmonar. Apresentamos o caso de um homem de 36 anos previamente hígido que chegou ao serviço de emergência queixando-se de taquicardia, dispneia e dor pleurítica. Uma angiotomografia computadorizada confirmou o diagnóstico de embolia pulmonar aguda. O paciente foi tratado com trombólise sistêmica e anticoagulantes. Em exames posteriores para investigar a causa da embolia, uma tomografia computadorizada revelou dilatação fusiforme da veia poplítea esquerda medindo 3x3 cm, com enchimento incompleto devido à presença de um trombo. O paciente foi submetido a reparo cirúrgico aberto. No seguimento de 1 mês, ele estava assintomático, e uma ultrassonografia revelou a patência completa da veia poplítea, sem dilatação ou trombo.

https://doi.org/10.1590/1677-5449.202200732

Deep sea ecosystem exploration and ‘health check’: sampling strategy and methods applied during the iAtlantic_BR10_Petrobras cruise in the Santos Basin, Southwest Atlantic
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Perez, Jose Angel A.

; Barros Neto, Halésio M.C. de

; Arantes, Renata C.M.

; Gaurisas, Daniela Y.

; Silva, Camila F.

; Alves, Fernanda Maria M.

; Costa, Júlia A.

; Eloi, Paula D.C.

; Fonseca, Thayse S.

; Gavazzoni, Lucas

; Lonskis, Isabella da S.

; Nardi, Ricardo U.

; Nascimento, Pedro O.

; Rodrigues, João Vitor M.

; Santos, Ana Lara F. dos

; Santos, Edson C. dos

; Schroeder, Rafael

; Silva, Luis Carlos da

; Souza, Fernanda dos S.S. de

; Bernardino, Ângelo F.

; Cavalcanti, Guarani H.

; Lindner, Alberto

; Mahiques, Michel M. de

; Millo, Christian

; Reis, Priscila

; Sweetman, Andrew K.

; Roberts, J. Murray

Ocean and Coastal Research

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2023, Volumen 71 elocation e23046

Resumen: En | Texto: En | PDF: En

Abstract The iAtlantic Project has established an international collaborative strategy to improve mapping and characterization of deep and open ocean ecosystems in understudied regions of the Atlantic and evaluate their health. In December 2022, the first iAtlantic expedition in the South Atlantic set off to map and explore seafloor ecosystems in the Santos Basin slope (200-1,000 m depths) in collaboration with the Petrobras ‘Santos Basin - Regional Characterization Project.’ The 17-day ‘iAtlantic_BR10-Petrobras’ cruise was conducted on board the research vessel NPqHOc Vital de Oliveira (Brazilian Navy) and performed (a) water column structure characterization, (b) seafloor morphology mapping, (c) description of benthic habitats and communities by seafloor imagery and biological/ geological sampling, and (d) ex-situ experiments to assess the functioning of sedimentary ecosystems and their responses to climate-related environmental changes. This study describes the rationale behind the iAtlantic_BR10-Petrobras cruise science plan, reports its sampling strategy and methods, and summarizes its collected data and preliminary results.

https://doi.org/10.1590/2675-2824071.23069jaap

Impact of COVID-19 on education, health and lifestyle behaviour of Brazilian urology residents
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Prezotti, José Antonio

; Henriques, João Victor T.

; Favorito, Luciano A.

; Canalini, Alfredo F.

; Machado, Marcos G.

; Brandão, Thulio B. V.

; Barbosa, Akemi M. V.

; Moromizato, Julyana K. M.

; Anzolch, Karin M. J.

; Fernandes, Roni de C.

; Rodrigues, Fransber R. A.

; Bellucci, Carlos H. S.

; Silva, Caroline S.

; Pompeo, Antonio Carlos L.

; Bessa Jr., Jose de

; Gomes, Cristiano M.

International braz j urol

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Ago 2021, Volumen 47 Nº 4 Paginas 753 - 776

Resumen: En | Texto: En | PDF: En

ABSTRACT Objectives: To evaluate the impact of COVID-19 on clinical and surgical practice, educational activities, health and lifestyle behavior of Brazilian urology residents. Materials and Methods: A web-based survey was sent to 468 Brazilian urology residents from postgraduate years (PGY) 3 to 5 to collect data on clinical practice and training after 4 months of COVID-19. We also assessed health-related and behavior changes, rate of infection by SARS-CoV-2, deployment to the front line of COVID-19, residents’ concerns, and access to personal protective equipment (PPE). Results: Massive reductions in elective and emergency patient consultations, diagnostic procedures and surgeries were reported across the country, affecting PGY 3 to 5 alike. Most in-person educational activities were abolished. The median damage to the urological training expected for 2020 was 6.0 [3.4 – 7.7], on a scale from 0 to 10, with senior residents estimating a greater damage (P< 0.001). Educational interventions developed included online case-based discussions, subspeciality conferences and lectures, and grand rounds. Most senior residents favored extending residency to compensate for training loss and most younger residents favored no additional training (p< 0.001). Modifications in health and lifestyle included weight gain (43.8%), reduced physical activity (68.6%), increased alcoholic intake (44.9%) and cigarette consumption (53.6%), worsening of sexual life (25.2%) and feelings of sadness or depression (48,2%). Almost half were summoned to work on the COVID-19 front-line and 24.4% had COVID-19. Most residents had inadequate training to deal with COVID-19 patients and most reported a shortage of PPE. Residents’ concerns included the risk of contaminating family members, being away from residency program, developing severe COVID-19 and overloading colleagues. Conclusions: COVID-19 had a massive impact in Brazilian urology residents´ training, health and lifestyle behavior, which may reflect what happened in other medical specialties. Studies should confirm these findings to help developing strategies to mitigate residents’ losses.

https://doi.org/10.1590/s1677-5538.ibju.2021.99.09 170 descargas

On the distribution of three exotic geckos of genus Hemidactylus Gray, 1825 (Squamata, Gekkonidae), and an unusual record of the native lizard Gymnophthalmus speciosus (Hallowell, 1861) outside its elevational range in Colombia
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Henao-Osorio, Jose J.

; Pereira-Ramírez, Ana M.

; Cardona-Giraldo, Alexandra

; Arias-Monsalve, Héctor Fabio

; Rojas-Morales, Julián A.

; Caicedo-Portilla, José Rancés

; Ramírez-Chaves, Héctor E.

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales

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Jun 2021, Volumen 45 Nº 175 Paginas 462 - 473

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

Resumen El estudio de las especies exóticas en Colombia ha sido un tema de interés en las últimas décadas debido a los efectos que estas pueden tener en la diversidad local. Los registros de especies exóticas de reptiles del género Hemidactylus se ha incrementado a partir de los datos disponibles en colecciones científicas y las observaciones en campo. Sin embargo, existen vacíos de información en torno a su distribución actual en el país y a su presencia inusual en ciertos entornos como producto de la acción humana. Se presenta una actualización de la distribución de tres geckos caseros, Hemidactylus frenatus, H. garnotii y H. mabouia, a partir de registros históricos y en varias localidades nuevas, así como el hallazgo atípico del lagarto nativo Gymnophthalmus speciosus en ecosistemas de páramo en los Andes centrales de Colombia, casi 2.000 m por encima del límite altitudinal conocido para la especie. Esta actualización de la distribución evidenció que H. frenatus se distribuye ampliamente en 30 de los 32 departamentos de Colombia, sin registros para Chocó y Guainía. Los registros actuales de H. garnotii son de la cuenca del río Cauca en los departamentos de Antioquia, Caldas y Risaralda, en tanto que H. mabouia, previamente conocida en el país por registros en la cuenca del Amazonas, actualmente también se ha encontrado en la región andina. Por último, se reporta la inusual presencia del lagarto nativo Gymnophthalmus speciosus en un ecosistema de páramo que no hace parte de su área de distribución, probablemente mediada por el transporte accidental desde una localidad típica de las tierras bajas (inferior a los 1.000 m sobre el nivel del mar).

Abstract The study of the introduction of exotic species in Colombia has been a trending topic in the last decade due to their effects on local diversity. The records of exotic reptile species of the genus Hemidactylus have increased based on museum vouchers and fieldwork. However, there are still plenty of information gaps regarding their current distribution in the country. Similarly, there is limited information on unusual reptile distributions caused by human transport inside the country. Here, we present an update to the distribution of the exotic house geckos Hemidactylus frenatus, H. garnotii, and H. mabouia based on several new localities and historical records. We also present an atypical record of the golden spectacled tegu Gymnophthalmus speciosus in paramo ecosystems from the Central Andes of Colombia, almost 2000 meters above the upper elevational known limit for this species. The distribution update shows that H. frenatus is widely distributed in 30 of the 32 departments of Colombia with no records for Chocó and Guainía. H. garnotii is currently known only from the Cauca River basin of the departments of Antioquia, Caldas, and Risaralda, while H. mabouia, previously known from the Amazon basin of the country, is now reported for the Andean region. Finally, Gymnophthalmus speciosus presence in a paramo ecosystem, considered unusual as it is not part of its distribution area, was probably the result of an accidental transport from a typical lowland locality (below 1000 meters above sea level.

https://doi.org/10.18257/raccefyn.1356 9 descargas

Hydro-physical properties of soil and pasture vegetation coverage under animal trampling
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Batista, Pedro H. D.

; Almeida, Gledson L. P. de

; Silva, Jhon L. B. da

; Lins, Frederico A. C.

; Silva, Marcos V. da

; Cordeiro Junior, Jose J. F.

Revista Brasileira de Engenharia Agrícola e Ambiental

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Dic 2020, Volumen 24 Nº 12 Paginas 854 - 860

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

RESUMO A compactação do solo e a degradação das pastagens muitas vezes são provenientes da pressão exercida pelo casco dos animais. Nesse sentido, objetivou-se verificar possíveis modificações no solo e mudanças na cobertura vegetal da pastagem devido ao pisoteio animal. Assim, um estudo foi realizado em uma fazenda na região do Agreste de Pernambuco, Brasil. Em uma área de 40 × 40 m manejada sob pastejo contínuo, com uma taxa de lotação de 12 UA ha-1; as amostras de solo foram coletadas antes e após o período de pastejo, com 36 pontos distribuídos regularmente. Em cada ponto, determinou-se a densidade, porosidade total, umidade e resistência à penetração do solo na profundidade de 0-0,10 m, bem como a condutividade hidráulica e a matéria orgânica na superfície do solo. Antes e após o pastejo, imagens do satélite Sentinel-2A também foram obtidas para observar o padrão de resposta da vegetação da pastagem ao longo do tempo por meio do Índice de Vegetação por Diferença Normalizada (NDVI) e Cobertura Vegetal de Pastagem (CVP). Os atributos físico-hídricos do solo foram submetidos a análise fatorial. Os mapas de NDVI e CVP foram avaliados quanto à variabilidade espacial. Após o período de pastejo, houve alteração nos atributos do solo em estudo devido ao pisoteio dos animais. O sensoriamento remoto (NDVI e CVP) destacou padrões de variação, como a redução da pastagem e possíveis áreas de preferencias dos animais.

ABSTRACT Soil compaction and pasture degradation are often due to the pressure exerted by the animals’ hooves. In this sense, this study aimed to verify possible changes in the soil and changes in the pasture vegetation coverage due to animal trampling. Thus, a study was carried out on a farm in the ‘Agreste’ region of Pernambuco, Brazil. Soil samples were collected before and after the grazing period, with 36 points regularly distributed in an area of 40 × 40 m managed under continuous grazing, with a stocking rate of 12 AU ha-1. At each point, density, total porosity, humidity, and penetration resistance of the soil at a depth of 0-0.10 m, as well as hydraulic conductivity and organic matter in the soil surface, were determined. Before and after grazing, images from the Sentinel-2A satellite were also obtained to observe the response pattern of pasture vegetation over time using the Normalized Difference Vegetation Index (NDVI) and Pasture Vegetation Coverage (PVC). The physical-hydric attributes of the soil were subjected to factor analysis. NDVI and PVC maps were evaluated for spatial variability. After the grazing period, there was a change in the attributes of the soil under study due to the animal trampling. Remote sensing (NDVI and PVC) highlighted patterns of variation, such as the reduction of pasture and possible areas of preference for the animals.

https://doi.org/10.1590/1807-1929/agriambi.v24n12p854-860 589 descargas

Impact of COVID-19 on clinical practice, income, health and lifestyle behavior of Brazilian urologists
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Gomes, Cristiano M.

; Favorito, Luciano A.

; Henriques, João Victor T.

; Canalini, Alfredo F.

; Anzolch, Karin M. J.

; Fernandes, Roni de C.

; Bellucci, Carlos H. S.

; Silva, Caroline S.

; Wroclawski, Marcelo L.

; Pompeo, Antonio Carlos L.

; Bessa Jr., Jose de

International braz j urol

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Dic 2020, Volumen 46 Nº 6 Paginas 1042 - 1071

Resumen: En | Texto: En | PDF: En

ABSTRACT Objectives To evaluate the impact of COVID-19 on clinical practice, income, health and lifestyle behavior of Brazilian urologists during the month of April 2020. Materials and Methods A 39-question, web-based survey was sent to all urologist members of the Brazilian Society of Urology. We assessed socio-demographic, professional, health and behavior parameters. The primary goal was to evaluate changes in urologists’ clinical practice and income after two months of COVID-19. We also looked at geographical differences based on the incidence rates of COVID-19 in different states. Results Among 766 urologists who completed the survey, a reduction ≥ 50% of patient visits, elective and emergency surgeries was reported by 83.2%, 89.6% and 54.8%, respectively. An income reduction of ≥ 50% was reported by 54.3%. Measures to reduce costs were implemented by most. Video consultations were performed by 38.7%. Modifications in health and lifestyle included weight gain (32.9%), reduced physical activity (60.0%), increased alcoholic intake (39.9%) and reduced sexual activity (34.9%). Finally, 13.5% of Brazilian urologists were infected with SARS-CoV-2 and about one third required hospitalization. Urologists from the highest COVID-19 incidence states were at a higher risk to have a reduction of patient visits and non-essential surgeries (OR=2.95, 95% CI 1.86 – 4.75; p< 0.0001) and of being infected with SARS-CoV-2 (OR=4.36 95%CI 1.74-10.54, p=0.012). Conclusions COVID-19 produced massive disturbances in Brazilian urologists’ practice, with major reductions in patient visits and surgical procedures. Distressing consequences were also observed on physicians’ income, health and personal lives. These findings are probably applicable to other medical specialties.

https://doi.org/10.1590/s1677-5538.ibju.2020.99.15 3190 descargas

The chiggerflea Hectopsylla pulex (Siphonaptera: Tungidae): infestation on Molossus molossus (Chiroptera: Molossidae) in the Central Andes of Colombia
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Ramírez-Chaves, Héctor E.

; Tamayo-Zuluaga, Andrés Fernando

; Henao-Osorio, Jose J.

; Cardona-Giraldo, Alexandra

; Ossa-López, Paula A.

; Rivera-Páez, Fredy A.

Zoologia (Curitiba)

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2020, Volumen 37 elocation e53092

Resumen: En | Texto: En | PDF: En

ABSTRACT Some species of mastiff bats, Molossus Geoffroy, 1805, inhabit human shelters such as houses and barns. Among them, the Pallas’s mastiff bat, Molossus molossus Pallas, 1766, is the most common species in South America. There are a few studies on this bat in Colombia, mostly on colony size, diet, ectoparasite records, and activity patterns in the Andean and Caribbean regions. Here, we provide information on the prevalence of chiggerfleas, Hectopsylla pulex (Haller, 1880), on M. molossus, along with molecular data on the flea, and its distribution in Colombia. In addition, we describe the size and sex ratio of the infested bat colony, located in the central Andes of Colombia. The bat colony was represented by ca. 45 individuals, of which 33 were captured. The colony had more females (25 individuals) than males (8 individuals). A total of four Pallas’s mastiff bats had chiggerfleas, H. pulex, most of which were attached to the bat’s faces and ears. The composition of the colony (sex ratio) and the observed activity times match those reported for other colonies of the species in Colombia. The cytochrome oxidase subunit 1, and the 12S rRNA mitochondrial gene obtained from H. pulex represent the second and first available sequences for the species, respectively. The level of infestation of individuals in the colony was low, similar to that observed in other South American countries, such as Brazil. Finally, the new locality is the seventh confirmed and the highest elevational record of H. pulex in Colombia.

https://doi.org/10.3897/zoologia.37.e53092 291 descargas

Hypnea musciformis (Wulfen) J. V. Lamour. (Gigartinales, Rhodophyta) responses to gasoline short-term exposure: biochemical and cellular alterations
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Ramlov, Fernanda

; Carvalho, Tiago Jose Griebeler

; Costa, Giulia Burle

; Rodrigues, Eva Regina de Oliveira

; Bauer, Claudia Marlene

; Schmidt, Eder Carlos

; Kreusch, Marianne Gabi

; Moresco, Rodolfo

; Navarro, Bruno Bachiega

; Cabral, Debora Queiroz

; Bouzon, Zenilda Laurita

; Horta, Paulo Antunes

; Maraschin, Marcelo

Acta Botanica Brasilica

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Mar 2019, Volumen 33 Nº 1 Paginas 116 - 127

Resumen: En | Texto: En | PDF: En

ABSTRACT Presence of toxic compounds in marine coastal waters has increased exponentially since Industrial Revolution. In this way, we aimed to evaluate biochemical and physiological changes occurring within Hypnea musciformis after short-term exposure to gasoline. Hypnea musciformis was cultivated without gasoline and then exposed to various concentrations of it (0.001 % - 1.0 %, v/v) for periods of 30 min, 1 h, 12 h and 24 h. A Pricncipal Compound Analysis of UV-vis spectral window (200-700 nm) was able to discriminate gasoline-exposed samples according to both exposure time and gasoline concentration. Changes in carotenoid profile composition were observed. Decreased carotenoid content was associated to gasoline exposure time, being lutein and trans-β-carotene the major compounds found. Higher gasoline concentrations negatively interfered with phenolic compounds accumulation. In addition, increased gasoline concentrations corresponded to decreased intracellular starch grains content as well as increased its deposition on cell wall external surface. Data obtained allow us to conclude that gasoline can damage Hypnea musciformis physiology and cell morphology. This is important, considering Hypnea musciformis carotenoids and phenolics are potential biomarkers of environmental stress investigated, as well as its increased cell wall thickness to avoid gasoline diffusion.

https://doi.org/10.1590/0102-33062018abb0379 699 descargas

Depression, sexuality and fibromyalgia syndrome: clinical findings and correlation to hematological parameters
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Alves, Bruna

; Zakka, Telma M

; Teixeira, Manoel J.

; Kaziyama, Helena H.

; Siqueira, Jose T. T.

; Siqueira, Silvia R. D. T.

Arquivos de Neuro-Psiquiatria

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Nov 2016, Volumen 74 Nº 11 Paginas 863 - 868

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

RESUMO Fibromialgia (FS) é caracterizada por dor e comorbidades. Objetivo investigar depressão e sexualidade em mulheres com FS comparadas a controles, e correlacionar os achados com parâmetros hematológicos. Métodos 33 mulheres com FS e 19 controles saudáveis foram incluídas e avaliadas através dos seguintes instrumentos: Índice de Função Feminina Sexual, Inventário de Beck, escala visual analógica, história médica e exames laboratoriais. Resultados A prevalência de disfunção sexual (P = 0,007) e depressão (P < 0,001) foram maiores no grupo de estudo do que nos controles; também houve correlação positiva (P = 0,023). O grupo de estudo apresentou menor concentração sérica de testosterona, T4 livre, fator antinuclear e menos concentração de hemoglobina e hematócrito. Conclusões A FS associou-se com altos índices de disfunção sexual e depressão, e houve correlação com os parâmetros hematológicos estudados. Sugere-se o envolvimento de mediadores imuno-inflamatórios na FS, que necessita de maior investigação para a compreensão dos mecanismos tanto na FS e quanto em suas comorbidades.

ABSTRACT Fibromyalgia (FM) is characterized by chronic pain and comorbidities. Objective To investigate sexuality and depression in women with FM compared with controls and to correlate the findings with hematological parameters. Methods 33 women with FM and 19 healthy women were included and evaluated with the following instruments: Female Sexual Function Index, Beck Inventory, Visual Analogue Scale, medical history and laboratory exams. Results The prevalence of sexual dysfunction (P = 0.007) and depression (P < 0.001) were higher in the study group than in the control group; they were positively correlated (P = 0.023). The study group showed lower serum concentrations of testosterone, free T4, antinuclear factor, and lower blood hemoglobin and hematocrit. Conclusions FM was associated with high scores of sexual dysfunction and depression, and there were correlations with hematological parameters. We suggest the involvement of immune-inflammatory mediators and FM, which need further investigation to understand their role in FM syndrome and its comorbidities.

https://doi.org/10.1590/0004-282x20160141 3293 descargas

10.

Angolan vegetable crops have unique genotypes of potential value for future breeding programmes
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Domingos, José P

; Fita, Ana M.

; Picó, María B.

; Sifres, Alicia

; Daniel, Isabel H.

; Salvador, Joana

; Pedro, Jose

; Sapalo, Florentino

; Mozambique, Pedro

; Díez, María J.

South African Journal of Science

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Abr 2016, Volumen 112 Nº 3-4 Paginas 1 - 12

Resumen: En | Texto: En | PDF: En

A survey was carried out in Angola with the aim of collecting vegetable crops. Collecting expeditions were conducted in Kwanza-Sul, Benguela, Huíla and Namibe Provinces and a total of 80 accessions belonging to 22 species was collected from farmers and local markets. Species belonging to the Solanaceae (37 accessions) and Cucurbitaceae (36 accessions) families were the most frequently found with pepper and eggplant being the predominant solanaceous crops collected. Peppers were sold in local markets as a mixture of different types, even different species: Capsicum chinense, C. baccatum, C. frutescens and C. pubescens. Most of the eggplant accessions collected belonged to Solanum aethiopicum L. Gilo Group, the so-called 'scarlet eggplant'. Cucurbita genus was better represented than the other cucurbit crops. A high morphological variation was present in the Cucurbita maxima and C. moschata accessions. A set of 22 Cucurbita accessions from Angola, along with 32 Cucurbita controls from a wide range of origins, was cultivated in Valencia, Spain and characterised based on morphology and molecularity using a set of 15 microsatellite markers. A strong dependence on latitude was found in most of the accessions and as a result, many accessions did not set fruit. The molecular analysis showed high molecular variability and uniqueness in the collected accessions, as shown by their segregation from the set of global controls. In summary, the material collected is quite valuable because of its uniqueness and the potential of the breeding characteristics it possesses.

https://doi.org/10.17159/sajs.2016/20150285 1150 descargas

11.

Assessment of Direct Mercury Analyzer® to quantify mercury in soils and leaf samples
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Melendez-Perez, Jose J.

; Fostier, Anne H.

Journal of the Brazilian Chemical Society

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Nov 2013, Volumen 24 Nº 11 Paginas 1880 - 1886

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

Este trabalho tem como objetivo avaliar um método para quantificação de Hg total em amostras de solo e folhas usando o analisador direto de mercúrio (DMA-80 TRICELL; Milestone Inc., Itália). Foram usados materiais de referência certificados de solo, de folhas de árvores e de sedimentos, e amostras coletadas para otimizar e validar o método. Dado que a técnica permite a análise direta de amostras por combustão, foram considerados aspectos como o efeito da variação da quantidade de amostra e de sua granulometria. A robustez do método foi avaliada mediante o teste de Youden, no qual foi observado que quatro dos sete parâmetros testados têm influência significativa nos resultados analíticos para análise de amostras de folhas, mas os resultados de amostras de solo não foram significativamente afetados por pequenas variações de qualquer um dos sete fatores. A recuperação para os materiais de referência variou de 102% para 104%, e a precisão (coeficiente de variação) foi menor que 5%.

This work aims to assess a method for total Hg quantification in soil and leaf samples by using a Direct Mercury Analyzer® (DMA-80 TRICELL; Milestone Inc., Italy). Standard Reference materials of tree leaves, river sediment and soil, and collected samples of soil and leaves were used to optimize and to validate the method. Given that the technique allows direct analysis of samples by combustion, aspects like effect of sample amount variation and sample granulometry were considered. Method's robustness was also assessed through the Youden test showing that for leaf sample analyses, among the seven tested factors, four were able to significantly affect the analytical results, but the soil samples results were not significantly affected by slight variations of any of the seven factors. Recoveries for reference materials ranged from 102% to 104%, and the precision (RSD) was lower than 5%.

https://doi.org/10.5935/0103-5053.20130235 3643 descargas

12.

Cultural Consonance, Religion and Psychological Distress in an Urban Community
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Dressler, William W.

; Dengah II, H. J. Francois

; Balieiro, Mauro Campos

; Santos, Jose Ernesto dos

Paidéia (Ribeirão Preto)

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Ago 2013, Volumen 23 Nº 55 Paginas 151 - 160

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

Consonância cultural é o grau em que os indivíduos se aproximam dos protótipos codificados nos modelos culturais. Consonância cultural baixa é associada a sofrimento psicológico. A religião pode moderar a associação entre consonância cultural e sofrimento psicológico. O Brasil apresenta uma diversidade religiosa, sendo, portanto, uma sociedade importante para examinar esta hipótese. Este estudo, realizado em Ribeirão Preto, Brasil, utilizou delineamento de métodos mistos. As medidas de consonância cultural foram derivadas de métodos etnográficos e aplicadas em um estudo de levantamento realizado com 271 participantes, selecionados de quatro estratos socias. Consonância cultural baixa mostrou-se associada a sofrimento psicológico alto em análise de regressão múltipla ( B = - 0,430, p < 0,001). Membros de igrejas protestantes pentecostais relataram menor sofrimento psicológico independente dos efeitos da consonância cultural ( B = - 0,409, p < 0,05). A religião não moderou o efeito da consonância. São discutidas as implicações desses resultados para o estudo da relação entre religião e saúde.

Cultural consonance is the degree to which individuals approximate prototypes encoded in cultural models. Low cultural consonance is associated with higher psychological distress. Religion may moderate the association between cultural consonance and psychological distress. Brazil, with substantial variation in religion, is an important society for the examination of this hypothesis. Research was conducted in Ribeirão Preto, Brazil, using a mixed-methods design. Measures of cultural consonance were derived using ethnographic methods and then applied in a survey of 271 individuals drawn from four distinct social strata. Low cultural consonance was associated with higher psychological distress in multiple regression analysis ( B = -.430, p < .001). Members of Pentecostal Protestant churches reported lower psychological distress independently of the effect of cultural consonance ( B = -.409, p < .05). There was no buffering effect of religion. Implications of these results for the study of religion and health are discussed.

Consonancia cultural es el grado en que individuos se acercan a prototipos codificados en modelos culturales. Consonancia cultural baja está asociada con alto nivel de trastornos psicológicos. La religión puede moderar la relación entre consonancia cultural y trastornos psicológicos. Brasil, con variación religiosa considerable, es una sociedad importante para examinar esta hipótesis. La investigación fue realizada en Ribeirão Preto, Brasil, utilizando un diseño de métodos mixtos. Medidas de consonancia cultural se obtuvieron utilizando métodos etnográficos y luego se aplican en una encuesta de 271 personas procedentes de cuatro estratos sociales. Consonancia cultural baja se asoció con una mayor angustia psicológica en el análisis de regresión múltiple ( B = -.430, p < .001). Los miembros de las iglesias protestantes pentecostales manifiestan una menor angustia psicológica independientemente del efecto de la consonancia cultural ( B = -.409, p < .05). La religión no moderó el efecto de la consonancia. Las implicaciones de estos resultados para el estudio de la relación entre religión y salud se discuten.

https://doi.org/10.1590/1982-43272355201302 2822 descargas

13.

Family burden related to mental and physical disorders in the world: results from the WHO World Mental Health (WMH) surveys
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Viana, Maria Carmen

; Gruber, Michael J.

; Shahly, Victoria

; Alhamzawi, Ali

; Alonso, Jordi

; Andrade, Laura H.

; Angermeyer, Matthias C.

; Benjet, Corina

; Bruffaerts, Ronny

; Caldas-de-Almeida, Jose Miguel

; Girolamo, Giovanni de

; Jonge, Peter de

; Ferry, Finola

; Florescu, Silvia

; Gureje, Oye

; Haro, Josep Maria

; Hinkov, Hristo

; Hu, Chiyi

; Karam, Elie G.

; Lépine, Jean-Pierre

; Levinson, Daphna

; Posada-Villa, Jose

; Sampson, Nancy A.

; Kessler, Ronald C.

Brazilian Journal of Psychiatry

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Jun 2013, Volumen 35 Nº 2 Paginas 115 - 125

Resumen: En | Texto: En | PDF: En

Objective: To assess prevalence and correlates of family caregiver burdens associated with mental and physical conditions worldwide. Methods: Cross-sectional community surveys asked 43,732 adults residing in 19 countries of the WHO World Mental Health (WMH) Surveys about chronic physical and mental health conditions of first-degree relatives and associated objective (time, financial) and subjective (distress, embarrassment) burdens. Magnitudes and associations of burden are examined by kinship status and family health problem; population-level estimates are provided. Results: Among the 18.9-40.3% of respondents in high, upper-middle, and low/lower-middle income countries with first-degree relatives having serious health problems, 39.0-39.6% reported burden. Among those, 22.9-31.1% devoted time, 10.6-18.8% had financial burden, 23.3-27.1% reported psychological distress, and 6.0-17.2% embarrassment. Mean caregiving hours/week was 12.9-16.5 (83.7-147.9 hours/week/100 people aged 18+). Mean financial burden was 15.1% of median family income in high, 32.2% in upper-middle, and 44.1% in low/lower-middle income countries. A higher burden was reported by women than men, and for care of parents, spouses, and children than siblings. Conclusions: The uncompensated labor of family caregivers is associated with substantial objective and subjective burden worldwide. Given the growing public health importance of the family caregiving system, it is vital to develop effective interventions that support family caregivers.

https://doi.org/10.1590/1516-4446-2012-0919 7614 descargas

14.

Muscarinic antibodies and heart rate responses to dynamic exercise and to the Valsalva maneuver in chronic chagasic patients
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Neves, Barbara C. das

; Bacilio, Mey Lyn

; Berrueta, Lisbeth

; Salmen, Siham

; Peterson, Darrell L.

; Donis, Jose H.

; Nuñez, Tulio J.

; Davila, Diego F.

Revista do Instituto de Medicina Tropical de São Paulo

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Feb 2013, Volumen 55 Nº 1 Paginas 31 - 37

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

Foram estudadas as respostas cronotrópicas cardíacas à manobra de Valsalva e ao exercício dinâmico de vinte pacientes chagásicos com função ventricular esquerda normal e sem alterações da contractilidade segmentar por ecocardiografia bidimensional. O aumento absoluto da frequência cardíaca dos pacientes (Δ = 21,5 ± 10 bpm, M ± DP) durante a manobra de Valsalva foi significativamente menor quando se comparava ao grupo controle (Δ = 31,30 ± 70, p = 0,03). A frequência cardíaca mínima (58,24 ± 8,90 vs 62,80 ± 10, p = 0,68) e a diminuição da frequência cardíaca absoluta no final da manobra (Δ = 38,30 ± 13 vs Δ = 31,47 ± 17, p = 0,10) não foram diferentes em comparação com o grupo controle. A aceleração inicial da frequência cardíaca durante o exercício dinâmico (Δ = 12 ± 7,55 vs Δ = 19 ± 7,27, p = 0,01) também foi menor, mas a recuperação da frequência cardíaca, durante os primeiros dez segundos, foi maior no grupo sero-positivos [mediana:14 (intervalo interquartil: 9,75-17,50) vs 5 (0 - 8,75), p = 0,001]. Os níveis séricos de auto-anticorpos muscarínicos cardíacos foram significativamente maiores nos pacientes chagásicos do que no grupo controle [(mediana: 34,58 densidade óptica (intervalo interquartil 17 - 46,5) vs (mediana: 0, intervalo interquartil 0 - 22,25) p = 0,001] e a correlação é significativa e direta (r = 0,68, p = 0,002) com o início da recuperação da frequência cardíaca durante o exercício dinâmico. Os resultados desta investigação sugerem que indiretamente, os auto-anticorpos muscarínicos cardíacos, podem ter ação agonista positiva sobre o controle parassimpático da frequência cardíaca dos pacientes chagásicos.

We have studied the cardiac chronotropic responses to the Valsalva maneuver and to dynamic exercise of twenty chronic chagasic patients with normal left ventricular function and no segmental wall abnormalities by two-dimensional echocardiogram. The absolute increase in heart rate of the patients (Δ = 21.5 ± 10 bpm, M±SD) during the maneuver was significantly diminished when compared to controls (Δ = 31.30 ± 70, M±SD, p = 0.03). The minimum heart rate (58.24 ± 8.90 vs. 62.80 ± 10, p = 0.68) and the absolute decrease in heart rate at the end of the maneuver (Δ = 38.30 ± 13 vs. Δ = 31.47 ± 17, p = 0.10) were not different from controls. The initial heart rate acceleration during dynamic exercise (Δ = 12 ± 7.55 vs. Δ = 19 ± 7.27, M±SD, p = 0.01) was also diminished, but the heart rate recovery during the first ten seconds was more prominent in the sero-positive patients (Median: 14, Interquartile range: (9.75-17.50 vs. 5(0-8.75, p = 0.001). The serum levels of muscarinic cardiac auto-antibodies were significantly higher in the chagasic patients (Median: 34.58, Interquartile Range: 17-46.5, Optical Density) than in controls (Median: 0, Interquartile Range: 0-22.25, p = 0.001) and correlated significantly and directly (r = 0.68, p = 0.002) with early heart rate recovery during dynamic exercise. The results of this investigation indirectly suggest that, the cardiac muscarinic auto-antibodies may have positive agonist effects on parasympathetic heart rate control of chagasic patients.

https://doi.org/10.1590/S0036-46652013000100006 2590 descargas

15.

Terapia de resgate com amiodarona em crianças com grave disfunção ventricular esquerda causada por veneno de escorpião
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Santiago, Justo J.

; Dávila, Carmen A. Mazzei de

; Davila, Diego F.

; Donis, Jose H.

; Villaroel, Vanesa

Arquivos Brasileiros de Cardiologia

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Ene 2010, Volumen 94 Nº 1 Paginas 18 - 24

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

FUNDAMENTO: As crianças picadas por escorpião, pressintam ativação maciça do sistema nervoso simpática com vários graus de disfunção sistólica ventricular esquerda. OBJETIVO: Testar um protocolo de resgate em crianças com grave disfunção ventricular esquerda causada por picada de escorpião. Métodos: Quatro crianças após serem picadas por escorpião foram submetidas a: Encubação endotraqueal e suporte respiratório, eletrocardiograma, radiografia de tórax, ecocardiograma e determinação sérica da norepinefrina e troponina I. As análises foram repetidas após 12, 24 e 48 horas. As seguintes medicações intravenosas foram administradas: dobutamina 4-6 μg/kg/min; amiodarona 3 mg/kg durante duas horas, com dose de manutenção de 5 mg/kg/dia; e furosemida 0,5 mg/kg. Amiodarona, dobutamina e furosemida foram administradas durante as primeiras 48 horas. Bloqueadores beta-adrenérgicos e inibidores da enzima conversora da angiotensina foram administrados até 48 após a internação, uma vez que o estado clínico havia melhorado e a fração de ejeção ventricular esquerda encontrava-se acima de 0,35%. RESULTADOS: Na admissão, a dosagem da norepinefrina foi 1.727,50± 794,96 pg/ml, a de troponina I 24,53 ± 14,09 ng/ml e a fração de ejeção do ventrículo esquerdo foi 0,20 ± 0,056. Após 12 horas, os níveis séricos de norepinefrina e de troponina I diminuíram para a metade dos valores iniciais e a fração de ejeção aumentou para 0,32 ± 0,059. Durante as 24 e 48 horas subseqüentes, a fração de ejeção elevou-se para 0,46 ± 0,045 (p<0,01) e a norepinefrina e de troponina I diminuíram para 526,75 ± 273,73 (p< 0,02) e 2,20 ± 2,36 (p<0,02) respectivamente. CONCLUSÃO: É bem provável que a amiodarona, ao agir como neuromodulador, seja responsável pela redução rápida e progressiva dos níveis séricos de norepinefrina.

BACKGROUND: Children with scorpion envenomation have massive sympathetic activation and variable degrees of left ventricular systolic dysfunction. OBJECTIVE: To evaluate a rescue protocol for children with severe left ventricular dysfunction secondary to scorpion envenomation. METHODS: Four children, after scorpion envenomation, were subjected to a rescue protocol for acute left ventricular dysfunction: Endotracheal intubation and respiratory assistance, electrocardiograms, chest x-Ray, echocardiograms and blood samples for norepinephrine and troponin I serum levels. Samples and echocardiograms were repeated at 12, 24 and 48 hours. Intravenous medications: Dobutamine: 4-6 μg/kg/min. Amiodarone: 3 mg/kg during a 2 hour period. Maintenance: 5 mg/kg/day. Furosemide: 0.5 mg/kg/dose. Diuretics were given when the systemic blood pressure was above percentile fifty. Amiodarone, Dobutamine and Furosemide were administered during the first 48 hours. Beta-adrenergic blockers and angiotensin converting enzyme were given, at 48 hours after admission, once the left ventricular Ejection fraction > 0.35 and the clinical status had improved. RESULTS: On admission, norepinephrine was 1,727.50 ±794.96 pg/ml, troponin I 24.53 ± 14.09 ng/ml and left ventricular ejection fraction 0.20 ± 0.056. At twelve hours, norepinephrine and troponin I serum levels were down to half of the initial values and the ejection fraction increased to 0.32 ± 0.059. During the next 24 and 48 hours, the ejection fraction rose to 0.46 ± 0.045, (p<0.01) and norepinephrine and troponin diminished to 526.75 ± 273.73 (p < 0.02) and 2.20 ± 2.36 (p<0.02) respectively. CONCLUSION: Amiodarone, by acting as a neuromodulator, is very likely responsible for the early and progressive decrease of serum norepinephrine.

FUNDAMENTO: Los niños con picaduras de escorpión sufren activación masiva del sistema nervioso simpático con varios grados de disfunción sistólica ventricular izquierda. OBJETIVO: Probar un protocolo de rescate en niños con disfunción ventricular severa izquierda ocasionada por picadura de escorpión. MÉTODOS: Cuatro niños tras un escorpión picarlas se sometieron a: incubación endotraqueal y soporte respiratorio, electrocardiograma, radiografía de tórax, ecocardiograma y determinación sérica de la norepinefrina y troponina I. Los análisis se repitieron tras 12, 24 y 48 horas. Las siguientes medicaciones intravenosas se administraron: dobutamina 4-6 mcg/kg/min; amiodarona 3 mg/kg durante dos horas, con dosis de mantenimiento de 5 mg/kg/día; y furosemida 0.5 mg/kg. Amiodarona, dobutamina y furosemida se administraron durante las primeras 48 horas. Bloqueante betaadrenergicos e inhibidores de la enzima convertidora de la angiotensina se administraron hasta 48 tras la internación, una vez que el estado clínico había mejorado y la fracción de eyección ventricular izquierda se hallaba superior a un 0,35%. RESULTADOS: Al ingreso, la dosificación de la norepinefrina fue 1727,50± 794,96 pg/ml, la de troponina I 24,53 ± 14,09 ng/ml y la fracción de eyección del ventrículo izquierdo fue 0,20 ± 0,056. Tras 12 horas, los niveles séricos de norepinefrina y de troponina I disminuyeron para la mitad de los valores iniciales y la fracción de eyección aumentó para 0,32 ± 0,059. Durante las 24 y 48 horas subsiguientes, la fracción de eyección se elevó para 0,46 ± 0,045 (p<0,01) y la norepinefrina y de troponina I se redujeron para 526,75 ± 273,73 (p< 0,02) y 2,20 ± 2,36 (p<0,02) respectivamente. CONCLUSIÓN: Es bien probable que la amiodarona, al actuar como neuromodulador, sea responsable de la reducción rápida y progresiva de los niveles séricos de norepinefrina.

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