Serum Complement
Mostrando 13-24 de 1618 artigos, teses e dissertações.
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13. Human FcRn can mediate the transport across intestinal mucosal barrier and prolong the half-life of rabbit IgG in vivo
FcRn (neonatal Fc receptor) plays an important role in IgG transportation, antigen presentation and signal transmission. In this study, the complement fixation test and flow cytometry test were performed to verify whether the heterologous antibody could be transmitted to the serum or leukocyte with FcγR (Fc gamma receptor) across the intestinal mucosa. The
Braz. arch. biol. technol.. Publicado em: 2015-06
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14. Molecular characterization of the complement C1q, C2 and C4 genes in Brazilian patients with juvenile systemic lupus erythematosus
OBJECTIVE: To perform a molecular characterization of the C1q, C2 and C4 genes in patients with juvenile systemic lupus erythematosus. METHODS: Patient 1 (P1) had undetectable C1q, patient 2 (P2) and patient 3 (P3) had decreased C2 and patient 4 (P4) had decreased C4 levels. All exons and non-coding regions of the C1q and C2 genes were sequenced. Mononuclea
Clinics. Publicado em: 2015-03
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15. Preliminary assessment of Hedychium coronarium essential oil on fibrinogenolytic and coagulant activity induced by Bothrops and Lachesis snake venoms
Background The search for new inhibitors of snake venom toxins is essential to complement or even replace traditional antivenom therapy, especially in relation to compounds that neutralize the local effects of envenomations. Besides their possible use as alternative to traditional antivenom therapy, some plant species possess bioactive secondary metabolites
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 02/10/2014
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16. Zoonotic potential of multidrug-resistant extraintestinal pathogenic Escherichia coli obtained from healthy poultry carcasses in Salvador, Brazil
The zoonotic potential to cause human and/or animal infections among multidrug-resistant extraintestinal pathogenic Escherichia coli from avian origin was investigated. Twenty-seven extraintestinal pathogenic E. coli isolates containing the increased survival gene (iss) were obtained from the livers of healthy and diseased poultry carcasses at two slaughterh
Braz J Infect Dis. Publicado em: 2013-02
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17. Alternative complement pathway and factor B activities in rats with altered blood levels of thyroid hormone
Evaluating the activity of the complement system under conditions of altered thyroid hormone levels might help elucidate the role of complement in triggering autoimmune processes. Here, we investigated alternative pathway (AP) activity in male Wistar rats (180 ± 10 g) after altering their thyroid hormone levels by treatment with triiodothyronine (T3), propy
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-03
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18. Hemolytic activity of alternative complement pathway as an indicator of innate immunity in pacu (Piaractus mesopotamicus)
The objective of this study was to evaluate the methodology to establish the hemolytic activity of alternative complement pathway as an indicator of the innate immunity in Brazilian fish pacu (Piaractus mesopotamicus), in addition to verifying the influence of β-glucan as an immunostimulant. Fish were fed with diets containing 0, 0.1 and 1% β-glucan, durin
Revista Brasileira de Zootecnia. Publicado em: 2012-02
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19. Mucopolissacaridoses : mecanismos patogênicos e abordagens terapêuticas baseadas em terapia gênica e reposição enzimática
In this work we aimed to study the pathogenesis of mucopolysaccharidosis (MPS), especially organs that have been described as difficult-to-reach by current therapies. We also aimed to evaluate new therapies for these diseases. Our studies focused on MPS I and VII mice showed an increase in the activity of proteases, including cathepsins and metallopeptidases
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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20. Avaliação do efeito de contraceptivos hormonais sobre o sistema complemento / Evaluation of the effect of hormonal contraceptives on the complement system
The occurrence of thrombosis is often associated with the presence of one or more risk factors, which may be genetic and/or acquired, such as hormonal changes that occur during pregnancy, hormone replacement therapy and the use of combined hormonal contraceptives (CHC). The inflammation in turn, is an important body\ s response to the aggression and involves
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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21. Níveis séricos e polimorfismos gênicos da Lectina Ligadora de Manose (MBL) e da Serino Protease Associada à MBP (MASP)-2 em uma amostra da população brasileira / Mannose-binding lectin (MBL) and MBL Associated Serine Protease (MASP)-2 serum levels and genetic polymorphisms in a Brazilian population sample
A Lectina Ligadora de Manose (MBL) é uma proteína que reconhece carboidratos na superfície microbiana levando à ativação do sistema complemento. Este processo é mediado por Serino Proteases tal como a MASP-2. O complexo MBL/MASP-2 é responsável pela formação da C3 convertase C4bC2b. Os níveis séricos de MBL e a MASP-2 (genes MBL2 e MASP-2, respe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/04/2011
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22. Pesquisa de anticorpos anti-Brucella abortus e anti-Brucella ovis em ovinos no município de Uberlândia, MG
The first epidemiologic inquiry to Brucella abortus (B. abortus) and Brucella ovis (B. ovis) was carried out in sheep from Uberlândia county, MG. A total of 334 blood serum samples of sheep from both sexes and different ages and breeds were collected in 12 farms. An epidemiologic questionnaire was applied for each farm. Tests for B. abortus and B. ovis anti
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2011-08
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23. Effect of Bothrops alternatus snake venom on macrophage phagocytosis and superoxide production: participation of protein kinase C
Envenomations caused by different species of Bothrops snakes result in severe local tissue damage, hemorrhage, pain, myonecrosis, and inflammation with a significant leukocyte accumulation at the bite site. However, the activation state of leukocytes is still unclear. According to clinical cases and experimental work, the local effects observed in envenenoma
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2011
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24. Cardiac gene expression and systemic cytokine profile are complementary in a murine model of post-ischemic heart failure
After myocardial infarction (MI), activation of the immune system and inflammatory mechanisms, among others, can lead to ventricular remodeling and heart failure (HF). The interaction between these systemic alterations and corresponding changes in the heart has not been extensively examined in the setting of chronic ischemia. The main purpose of this study w
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-04