Atividade diurética dos extratos aquoso e etanólico de Bugre (Hedyosmum brasiliense Miq.) e seus efeitos na pressão arterial média em testes pré-clÍnicos

The object of this study was assess through pre-clinical tests, the possible diuretic activity and the effects on the mean arterial pressure of the aqueous and ethanolic extracts of branches of “bugre”, Hedyosmum brasiliense Miq., species used in the treatment of renal and urinary disorders The tests were made in males anesthetized Wistar rats and randomly distributed into 4 experimental groups: Group I – Water control, group II – treated with aqueous extract (EA) of “bugre”, Group III – water control + “tween 80”, group IV – treated with ethanol extract (EE) and “bugre”. All groups were subjected to experimental protocol, composed of three periods: Balance (40 minutes), Basal (30 minutes) and Experimental (90 minutes), occurring the urine collection every 30 minutes, from the basal period and measuring blood pressure every 10 minutes. The results presented validate the ethnobotany indication of the use of H. brasiliense tea in the treatment of renal problems, because increased significantly the urinary flow in anesthetized Wistar rats (diuretic effect), without changing significantly (p>0,05) the arterial pressure

Influência aguda de uma sessão de exercício aeróbio na pressão arterial de indivíduos normotensos e hipertensos pertencentes ao Programa de Atividade Física na UBS e PSF do município de Rio Claro-SP

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Análise das propriedades físico-mecânicas de painel particulado de eucalipto composto por três camadas com duas variações de pressão

The research aimed to produce sheets of particles with waste processing of Eucalyptus sp bonded with urea-formaldehyde and evaluate the effect of pressure variation in the quality of the boards produced. To do so, the Boards made were divided into two treatments depending on the pressing pressure of 30 to 40 kgf / cm². Once pressings, climatized, the particleboards have been sectioned in test samples, and underwent physical-mechanical tests for determining density, swelling and water absorption, modulus of rupture and elasticity in static bending and internal linking. The particleboards pressed at 40 kgf / cm ² showed the best results

Bioatividade de cipó-prata (Trigonia nivea Cambess) sobre a excreção renal de água e eletrólitos e pressão arterial

Brazil is a country with the largest world´s vegetal genetic diversity and the Environmental Protection Area (APA) of the “Serra da Mantiqueira” is a very heterogeneous region, representing one of the richest sources of pharmacologically actives materials. The population uses medicinal plants and according to the OMS, 80% of the population uses them in primary treatment of several diseases. Nevertheless, the loss of traditional knowledge associated with medicinal plants is occurring quickly. The ethnopharmacological strategy uses traditional knowledge to the search for medicinal plants that can have bioactive substances against diseases that afflicting the population and thus protect traditional knowledge. The “cipó-prata” (Trigonia nívea Cambess.) is a native plant normally found in the “Bacia do Paraná” region and present in the flora in the neighborhood of “Marins”, Piquete-SP and usually, said for the treatment of renal and urinary diseases. So, the objective of this study was test if the “cipóprata” (Trigonia nívea Cambess.) has effects on the renal excretion of water and salt, in anesthetized Wister rats. The tests were made in males Wistar rats and randomly distributed into 4 experimental groups: Group I – aqueous control, Group II – treated with aqueous extract (EA) of “cipó-prata”, Group III – water control + “tween 80”, Group IV – treated with ethanol extract (EE) and “cipó-prata”. All groups were subjected to experimental protocol, composed of three periods: Balance (40 minutes), Basal (30 minutes) and Experimental (90 minutes), occurring the urine collection every 30 minutes, from the basal period and measuring blood pressure every 10 minutes. The aqueous extract (EA) of “cipó-prata” (Trigonia nívea Cambess.) presented diuretic effect of 173% (B-2,4±1,19 μL/min reaching 6,6±1,45 μL/min, in the period EX3) and ...(Complete abstract click electronic access below)

Influência de uma sessão de exercício resistido na pressão arterial de indivíduos normotensos e hipertensos pertencentes ao Programa de Atividade Física nas UBS e PSF do município de Rio Claro-SP

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Datação por U-Pb em rutilos de rochas de metamorfismo de alta pressão do grupo Araxá na região de São Sebastião do Paraíso - MG

Although several studies of Araxá Group in the region of Passos, just a few works deal with the age of metamorphism of this group. The current work aims to determine the cooling age of these rocks by in situ U-Pb dating in rutiles. Interestingly, the region of São Sebastião do Paraíso shows a condensed lithostratigraphic column from the Passos Nappe and exposes the higher metamorphic grade rocks described for this unit. The use of rutile as a geochronometer is based on its ability to incorporate U in its structure, facilitating the calculation of the age of the isotope ratio by U-Pb. Furthermore, the use of in situ dating technique with Laser Ablation has been a reliable and advantageous study because the analysis are punctual, and do not destroy the whole sample to be analyzed. The analyses of this work were made at the University of Gothenburg - Sweden and obtained 238U/206Pb ages between 608-566 ± 10 Ma and 235U/207Pb between 627-572 ± 10 Ma, showing that these ages are concordant with the literature in the area and are interpreted as the cooling age of metamorphism

Pressão arterial em cães: uma revisão

The evaluation of blood pressure is an essential tool for veterinarian clinical practice and for monitoring anesthetized patients or patients in intensive care, because of its usefulness in diagnostics, treatment and monitoring of several diseases. Apart from the pathological factor, the blood pressure also suffers the influence of different variables, such as age, breed, gender, temperament (anxiety and stress especially during the treatment, “white coat syndrome”), disease state, physical activity and, with lower intensity, animal’s diet. One of the main indications of the evaluation of blood pressure is the observation of clinical changes resulting from hypertension in animals, which one is characterized by lesions in the nervous and cardiovascular systems, kidneys and eyes. Not least important, the evaluation of blood pressure is also essential in hypotensive states, which represent an imminent risk of death. The techniques used in measuring blood pressure correspond to invasive forms (direct) or non invasive (indirect), whose correlation has been the subject of study and improvement within the small animal clinic. Thus, the purpose of this review is emphasize the importance of measuring blood pressure within the veterinary clinic routine, studying the influence of variables associated or not with elevated blood pressure, comparing the different methods used to obtain the blood pressure

Distribuição de tensões em bocais de vasos de pressão

This work is to analyze the behavior of context concentrated stresses generated around a nozzle connected to a pressure vessel. For this analysis we used the finite element method via a computer interface, the software ANSYS WORKBENCH. It was first necessary to study and intensive training of the software used, and also a study of the ASME Code, Section VIII, which is responsible for the standards used in pressure vessels. We analyzed three cases, which differ primarily in the variation of the diameter of the nozzle in order to analyze the variation of the stresses according to the variation of the diameters. The nozzle diameters were 35, 75 and 105 mm. After the model designed vessel, a pressure was applied on the innervessel of 0.5 MPa. For the smallest diameter, was found the lowest tensions concentrated. Varying between 1 and 223 MPa. Increasing the diameter of the nozzle resulted in increased tensions concentrated around the junction nozzle /vessel. The maximum stresses increased by 78% when the value was increased in diameter from 35 to 75 mm. Since the increase in diameter from 75 to 105 mm, the values of the tensions increased around 43%. These figures emphasize that stress concentrations increased with increasing the diameter of the nozzles, but not linearly

Dispositivo de microdescargas em gases na pressão atmosférica

Neste trabalho foi desenvolvido um dispositivo de microdescargas em gases à pressão atmosférica para geração de plasma a fim de ser utilizado no tratamento de superfícies. O trabalho foi baseado em um estudo de iniciação científica que aconteceu em duas etapas. Na introdução apresentam-se as motivações do estudo, o dispositivo desenvolvido na primeira etapa do trabalho bem como os primeiros resultados e propostas de melhorias. Definem-se os objetivos da segunda etapa, que contemplam modificações no dispositivo de descarga e na fonte de alimentação. Em seguida são explanados os métodos utilizados para confecção do dispositivo, construção da fonte de alimentação e circuito de fotodetecção para observar as descargas. Apresenta-se o modelo e configurações dos experimentos, os resultados obtidos são expostos e debatidos brevemente. Colocam-se as conclusões do trabalho e novas propostas de investigação e melhoramentos para o estudo das microdescargas. Seguem-se os agradecimentos aos envolvidos no projeto e, por fim, a bibliografia utilizada

Avaliação da atividade antioxidante de Qualea parviflora sobre a doença inflamatória intestinal e a úlcera gástrica induzidas em roedores

Pós-graduação em Biologia Geral e Aplicada - IBB

Avaliação da pressão liquórica em pacientes obstétricas submetidas à anestesia subaracnoidea que apresentaram cefaleia pós-punção dural

Pós-graduação em Anestesiologia - FMB

Efeitos da exposição pré-natal ao etanol e ao chumbo, isoladamente e em associação, sobre a pressão arterial e a reatividade da aorta de ratos recém-desmamados

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Qualidade da semeadura direta de milho com dois mecanismos de pressão no disco sulcador sob duas velocidades

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Avalição ecocardiográfica do ventrículo direito e da pressão arterial pulmonar em portadoresde hipertireoidismo

Pós-graduação em Fisiopatologia em Clínica Médica - FMB