Leukotrienes
Mostrando 1-12 de 171 artigos, teses e dissertações.
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1. Montelukast Has no Impact on the Systemic Production of TGFβ-1 in Patients with Nasal Polyposis Associated with Aspirin Intolerance
Abstract Introduction Nasal polyposis is a disease characterized by a mechanical dysfunction of the nasal mucosa, closely related to the unique makeup of its extracellular matrix, which develops as the result of an anomalous tissue remodeling process. Transforming growth factor beta 1 (TGF-β1) is reduced not only in the nasal polypoid tissue, but also in
Int. Arch. Otorhinolaryngol.. Publicado em: 2021-01
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2. Leukotriene B4 in equine asthma syndrome: what do we know so far?
RESUMO: Recentemente, o termo “síndrome da asma equina” (SAE) foi proposto devido à semelhança da doença equina à asma humana. Os leucotrienos causam constrição dos brônquios, especialmente nas vias aéreas posteriores e aumentam a secreção de muco no sistema respiratório. O leucotrieno B4 (LTB4) foi descoberto como um forte fator quimiotátic
Pesq. Vet. Bras.. Publicado em: 04/11/2019
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3. Explanation for the signs and symptoms of tooth eruption: mast cells
Resumo Para contribuir com a compreensão dos mecanismos relacionados à sintomatologia e aos sinais associados à erupção dentária, investigou-se a presença de mastócitos nos tecidos pericoronários na fase intraóssea (Grupo 1) e submucosa (Grupo 2), comparando-os entre si e com a mucosa bucal (Grupo 3). Em cada grupo, 14 espécimes foram analisados m
Dental Press J. Orthod.. Publicado em: 20/05/2019
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4. Role of the route of leukotrienes in an experimental model of oral mucositis induced by 5-fluorouracil
Abstract Purpose: To investigate the participation of cysteinyl leukotrienes in the pathophysiology of oral mucositis. Methods: Oral mucositis was induced in hamsters using 5-fluorouracil (5-FU; 60 and 40 mg/kg; i.p., on days 1 and 2, respectively, and with excoriations in jugal mucosa on day 4). Montelukast (10, 20, or 40 mg/kg/d; gavage), MK886 (3 mg/kg/
Acta Cir. Bras.. Publicado em: 2017-09
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5. Montelukast reduces seizures in pentylenetetrazol-kindled mice
Cysteinyl leukotrienes (CysLTs) have been implicated in seizures and kindling; however, the effect of CysLT receptor antagonists on seizure frequency in kindled animals and changes in CysLT receptor expression after pentylenetetrazol (PTZ)-induced kindling have not been investigated. In this study, we evaluated whether the CysLT1 inverse agonist montelukast,
Braz J Med Biol Res. Publicado em: 23/02/2016
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6. Leucotrienos como moduladores da imunidade inata a fungos. / Leukotrienes as modulators of innate immunity to fungi.
Leucotrienos (LTs) são mediadores lipídicos derivados do ácido araquidônico. Existem evidências que receptores da imunidade inata interagem com receptores para LTs amplificando funções efetoras de macrófagos. Investigamos se LTs modulam a fagocitose e a atividade microbicida via receptores Manose, Dectina -1 e PTX3 em macrófagos alveolares (AMs) e o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2012
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7. Ciclooxigenase-2 modula in vivo a expressão de marcadores da osteoclastogênese e genes envolvidos no metabolismo ósseo em resposta ao lipopolissacarídeo bacteriano / Ciclooxygenase-2 modulates in vivo the expression of osteoclastiogenesis makers and genes involved in bone metabolism in response to bacterial lipopolysaccharide
During an inflammatory response, several mediators are locally released in order to stimulate cellular and humoral immune response. Through the action of cyclooxygenase and lipoxygenase enzymes structural changes occur in the arachidonic acid chain leading to synthesis of prostaglandins or leukotrienes and lipoxins, respectively. Such mediators are responsib
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/06/2012
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8. Papel funcional dos leucotrienos na resposta imunológica ao melanoma B16-F0 experimental em camundongos / The role of Leukotrienes in the immune response of melanoma B16-F0 in experimental mice
No presente trabalho investigamos a relevância dos mediadores lipídicos (Leucotrienos) gerados pela enzima 5-Lipoxigenase (5-LO) na susceptibilidade ou resistência de camundongos ao Melanoma experimental com células tumorais B16-F0, utilizando como modelo camundongos produtores de leucotrienos (129_WT) e camundongos geneticamente deficientes \"knockout\"
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/06/2012
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9. Leukotrienes are not essential for the efficacy of a heterologous vaccine against Mycobacterium tuberculosis infection
Leukotrienes are reported to be potent proinflammatory mediators that play a role in the development of several inflammatory diseases such as asthma, rheumatoid arthritis and periodontal disease. Leukotrienes have also been associated with protection against infectious diseases. However, the role of leukotrienes in Mycobacterium tuberculosis infection is not
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-07
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10. Influência do montelucaste sobre o estado de ativação dos eosinófilos e função dos fagócitos em crianças asmáticas
Asthma is one of the most common chronic diseases in childhood and its prevalence and severity are increasing in many parts of the world in recent years. The main characteristic of asthma is inflammation of the lower airways, responsible for bronchial hyperresponsiveness and variable airflow limitation, reversible with or without treatment. Several cells pla
Publicado em: 2010
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11. Role of leukotrienes in immune protection conferred by the heterologous immunization BCG/DNA-HSP65 against tuberculosis / Papel dos leucotrienos na proteção conferida pela imunização heteróloga BCG/DNA-HSP65 contra tuberculose
Tuberculosis is responsible for more than 2 millions of death for year. The immune response against tuberculosis is related to activation of IFN-g-producing CD4+ and CD8+ cells. IFN-g increases the microbicidal mechanisms of macrophages to kill intracellular bacilli. Recently, the lipid mediator leukotriene B4 (LTB4) has been related to protection against se
Publicado em: 2009
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12. Production of prostaglandins and leukotrienes by Paracoccidioides brasiliensis
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2009