Pulmonary Alveoli
Mostrando 1-12 de 88 artigos, teses e dissertações.
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1. Variability in the virulence of specific Mycobacterium tuberculosis clinical isolates alters the capacity of human dendritic cells to signal for T cells
BACKGROUND Once in the pulmonary alveoli, Mycobacterium tuberculosis (Mtb) enters into contact with alveolar macrophages and dendritic cells (DCs). DCs represent the link between the innate and adaptive immune system owing to their capacity to be both a sentinel and an orchestrator of the antigen-specific immune responses against Mtb. The effect that the v
Mem. Inst. Oswaldo Cruz. Publicado em: 12/08/2019
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2. Negative pressure pulmonary edema: report of case series and review of the literature
Resumo Justificativa e objetivos: O edema pulmonar por pressão negativa ocorre por aumento da pressão negativa intratorácica após inspiração contra via aérea superior obstruída. A pressão gerada é transmitida aos capilares pulmonares e supera a pressão de equilíbrio hidrostático, o que causa extravasamento de líquido para o parênquima pulmona
Rev. Bras. Anestesiol.. Publicado em: 25/04/2019
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3. Effect of postnatal malnutrition on hyperoxia-induced newborn lung development
Several factors are associated with bronchopulmonary dysplasia. Among them, hyperoxia and lung immaturity are considered to be fundamental; however, the effect of malnutrition is unknown. Our objective was to evaluate the effects of 7 days of postnatal malnutrition and hyperoxia on lung weight, volume, water content, and pulmonary morphometry of premature ra
Brazilian Journal of Medical and Biological Research. Publicado em: 2009-07
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4. Responsividade do tecido pulmonar periférico de pacientes com doença pulmonar obstrutiva crônica / Hyperresponsiveness of peripheral lung parenchyma in chronic obstructive pulmonary disease
Mais de 60% dos pacientes com Doença Pulmonar Obstrutiva Crônica (DPOC) podem apresentar hiper-responsividade brônquica. Entretanto, não se sabe se, além das vias aéreas, o tecido pulmonar periférico também apresenta uma resposta exagerada a um agonista na DPOC. No presente estudo foi investigado o comportamento mecânico in vitro e as alterações e
Publicado em: 2009
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5. Hemorragia alveolar fatal: estudo histológico detalhado de necropsias / Fatal alveolar hemorrhage: detailed histological analysis of necropsies
Alveolar haemorrhage is a syndrome presented by many diseases each one with its particular physiopathologic mechanism resulting in pulmonary bleeding. The detailed histological analysis of these patients can help understanding this syndrome. In this study we reviewed and described histological findings of lung slides and medical records from patients whose c
Publicado em: 2009
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6. Utilization of the lower inflection point of the pressure-volume curve results in protective conventional ventilation comparable to high frequency oscillatory ventilation in an animal model of acute respiratory distress syndrome
INTRODUCTION: Studies comparing high frequency oscillatory and conventional ventilation in acute respiratory distress syndrome have used low values of positive end-expiratory pressure and identified a need for better recruitment and pulmonary stability with high frequency. OBJECTIVE: To compare conventional and high frequency ventilation using the lower infl
Clinics. Publicado em: 2008
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7. Estudo de Fractalidade e Evolução Dinâmica de Sistemas Complexos
In this work, the study of some complex systems is done with use of two distinct procedures. In the first part, we have studied the usage of Wavelet transform on analysis and characterization of (multi)fractal time series. We have test the reliability of Wavelet Transform Modulus Maxima method (WTMM) in respect to the multifractal formalism, trough the calcu
Publicado em: 2007
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8. A model of the carbon monoxide transport in the respiratory system of the human body. / Um modelo do transporte de monóxido de carbono no sistema respiratório do corpo humano.
This work is about the transport of carbon monoxide in the human body. The carbon monoxide is a colorless, odourless and tasteless gas and the main cause of accidental deaths for poisoning. It is responsible for the biggest amount of pollutant launched in the atmosphere. When inspired, it occupies places destined to the oxygen transport, with affinity about
Publicado em: 2005
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9. Leukocyte trafficking in alveoli and airway passages
Many pulmonary diseases preferentially affect the large airways or the alveoli. Although the mechanisms are often particular to each disease process, site-specific differences in leukocyte trafficking and the regulation of inflammation also occur. Differences in the process of margination, sequestration, adhesion, and migration occur that can be attributed t
BioMed Central.
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10. Growth of the alveoli and pulmonary arteries in childhood
Since alveolar and airway growth have previously been studied in greater detail than has arterial growth, the present study establishes the growth pattern of the arteries and relates this to that of the alveoli and airways.
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11. Endogenous endothelium-derived relaxing factor opposes hypoxic pulmonary vasoconstriction and supports blood flow to hypoxic alveoli in anesthetized rabbits.
Agents that inhibit nitric oxide synthesis augment hypoxic pulmonary vasoconstriction. In an animal model of unilateral alveolar hypoxia, we investigated the hypothesis that endogenous endothelium-derived relaxing factor/nitric oxide opposes hypoxic pulmonary vasoconstriction and supports blood flow to hypoxic alveoli, resulting in a reduction in arterial ox
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12. Scanning electron microscopy of pulmonary alveolar capillary vessels
The pattern of subepithelial vessels in pulmonary alveoli of rabbits has been studied using scanning electron microscopy.