Phagocyte
Mostrando 1-12 de 355 artigos, teses e dissertações.
-
1. Ultrastructure of phagocytes and oocysts of Nematopsis sp. (Apicomplexa, Porosporidae) infecting Crassostrea rhizophorae in Northeastern Brazil
Resumo Este trabalho descreve a morfologia ultraestrutural detalhada do fagócito encarcerando um oocisto de Nematopsis (Apicomplexa) encontrado em Crassostrea rhizophorae, na cidade de Maceió (AL), Brasil. Os hospedeiros muito infectados apresentavam valvas entreabertas com retração fraca e lenta dos músculos abdutores. Número variável de oócitos de
Rev. Bras. Parasitol. Vet.. Publicado em: 2019-03
-
2. Agaricus brasiliensis polysaccharides stimulate human monocytes to capture Candida albicans, express toll-like receptors 2 and 4, and produce pro-inflammatory cytokines
Abstract Background Agaricus brasiliensis is a medicinal mushroom with immunomodulatory and antitumor activities attributed to the β-glucans presented in the polysaccharide fraction of its fruiting body. Since β-glucans enhance cellular immunoresponsiveness, in this study we aimed to evaluate the effect of an acid-treated polysaccharide-rich fraction (ATF
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 27/04/2017
-
3. Decreased phagocytic function in neutrophils and monocytes from peripheral blood in periodontal disease
Phagocytosis by neutrophils and monocytes constitutes the main defense mechanism against bacterial challenges in periodontitis. Phagocytosis by neutrophils has already been evaluated, whereas phagocytic function of monocytes has hardly been addressed so far. Objectives: The aim of this study was to assess phagocytosis by neutrophils and monocytes in periodon
J. Appl. Oral Sci.. Publicado em: 2012-10
-
4. Fungus ball in HIV-infected patients
Aspergillus is a phagocyte opportunistic fungus that causes aspergillosis, an unusual disease in patients with AIDS. Six cases of fungal ball in patients with AIDS are reported here. In this group, all patients had hemoptysis and tuberculosis as the underlying lung disease. The diagnosis of pulmonary fungus ball was based on the clinical and radiographic fea
Publicado em: 2010
-
5. Participação de células B-1b noprocesso de cicatrização no camundongo. / The participation of B-1b cells in the wound healing process in mice.
Wound healing is a complex phenomenon whose mechanisms are not fully understood. There are no reports concerning the participation of B lymphocytes in tissue repair. However, Almeida et al (Inter Immunol, 2001) demonstrated that B-1 cells proliferate in stationary culture of adherent peritoneal cells. Further, that B-1 cells migrate to non-specific inflammat
Publicado em: 2010
-
6. 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
-
7. B-1 cell: the precursor of a novel mononuclear phagocyte with immuno-regulatory properties
A caracterização da origem, propriedades, funções e destino das células representam objetivo fundamental para a compreensão dos fenômenos fisiológicos e patológicos. Apesar da grande quantidade de conhecimentos relativos às diversas características das células de mamíferos, muitas delas, inclusive células B-1, são pouco entendidas. Depois de m
Anais da Academia Brasileira de Ciências. Publicado em: 2009-09
-
8. Interferon-gamma effect on splicing defects that cause chronic granulomatous disease linked to X chromosome. / Efeito do interferon-gamma sobre defeitos de "splicing" que levam à doença granulomatosa crônica ligada ao cromossomo X.
Phagocytes have a nicotinamide adenine dinucleotide phosphate-oxidase (NADPH) associated to plasmatic membrane that generates superoxide and other oxygen reactive intermediates. Defects on this oxidase in humans result in a disorder called Chronic Granulomatous Disease (CGD). Mutations next to splicing sites that interfere with the mRNA processing leading to
Publicado em: 2009
-
9. O papel do fator nuclear Kappa B (NF-k B) na expressão do gene CYBB do sistema NADPH oxidase humano / The role of nuclear factor k-B (NF-kB) CYBB gene expression activity of the human NADPH oxidase system
This work investigated the functional role of nuclear factor-? B (NF-?B) in respiratory burst activity and in expression of the human phagocyte nicotinamide adenine dinucleotide phosphate (NADPH) oxidase gene CYBB. U937 cells with a stably transfected repressor of NF-?B (I-?Ba-S32A/ S36A) demonstrated significantly lower superoxide release and lower CYBB gen
Publicado em: 2008
-
10. BAY 41-2272: potential immunomodulator to control infections. / BAY 41-2272: um imunomodulador com potencial para o controle de infecções.
Phagocyte activation is critical role for host defense against several pathogens, so that studies developing alternatives for activating these cell are very important. We investigated the effects of BAY 41-2272 on phagocytes activation. For this purpose we evaluated several aspects indicating cellular activation, as phagocytosis, superoxide release and micro
Publicado em: 2008
-
11. Avaliação, in vitro, da influência dos antiretrovirais zidovudina, lamivudina, efavirenz e lopinavir/ritonavir isolados ou associados sobre a função fagocitária e produção de radicais de oxigênio por neutrófilos e monócitos de indivíduos normais
The introduction of highly active antiretroviral therapy (HAART) in 1996 has decreased the morbidity and the mortality rates associated with the HIV infection. Though the infection can be controlled by antiretrovirals, these medicines may cause undesirable side effects due to their capacity to interact with cells of patients. It has been reported that these
Publicado em: 2008
-
12. Propolis: a review of its anti-inflammatory and healing actions
Tissue healing is an adaptive biological response by which the organism repairs damaged tissue. The initial stage of healing is represented by an acute inflammatory reaction, in which inflammatory cells migrate to damaged tissue and phagocyte debris. At a later stage, fibroblasts and endothelial cells proliferate and generate a scar. The occurrence of inflam
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2007