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Mostrando 1-12 de 304 artigos, teses e dissertações.
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1. Erratum
Resumo A asma é uma doença inflamatória dos pulmões e causa estresse oxidativo. Lavandula dentata é uma erva aromática com atividades anti-oxidantes e antiinflamatórias. Este estudo examinou a atividade do extrato de L. dentata em um modelo de asma de cobaia. Os machos adultos foram divididos em cinco grupos: o primeiro grupo foi controle, o segundo
Braz. J. Biol.. Publicado em: 2020-02
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2. Efeito do extrato de Lavandula dentata na asma induzida por ovalbumina em cobaias machos
Resumo A asma é uma doença inflamatória dos pulmões e causa estresse oxidativo. Lavandula dentata é uma erva aromática com atividades anti-oxidantes e antiinflamatórias. Este estudo examinou a atividade do extrato de L. dentata em um modelo de asma de cobaia. Os machos adultos foram divididos em cinco grupos: o primeiro grupo foi controle, o segundo
Braz. J. Biol.. Publicado em: 2020-02
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3. Cannabinoid receptor-1 antagonism: a new perspective on treating a murine schistosomal liver fibrosis model
BACKGROUND Formation of schistosomal granulomata surrounding the ova can result in schistosomiasis-associated liver fibrosis (SSLF). The current standard of treatment is praziquantel (PZQ), which cannot effectively reverse SSLF. The role of the cannabinoid (CB) receptor family in liver fibrosis has recently been highlighted. OBJECTIVES This study aimed t
Mem. Inst. Oswaldo Cruz. Publicado em: 05/08/2019
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4. Effect of Lavandula dentata extract on Ovalbumin-induced Asthma in Male Guinea Pigs
Resumo A asma é uma doença inflamatória dos pulmões e causa estresse oxidativo. Lavandula dentata é uma erva aromática com atividades anti-oxidantes e antiinflamatórias. Este estudo examinou a atividade do extrato de L. dentata em um modelo de asma de cobaia. Os machos adultos foram divididos em cinco grupos: o primeiro grupo foi controle, o segundo
Braz. J. Biol.. Publicado em: 18/04/2019
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5. Imbalance of γδT17/γδTreg cells in the pathogenesis of allergic asthma induced by ovalbumin
We aimed to explore the imbalance between the T helper 17 γδT cells (γδT17) and the regulatory γδT cells (γδTreg) in asthmatic mice. Male Balb/c mice were randomly divided into the normal control group and the asthmatic model group. The asthmatic model group mice were intraperitoneally injected with the mixture of ovalbumin (OVA)/Al(OH)3 and then act
Braz J Med Biol Res. Publicado em: 10/07/2018
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6. Tangeretin has anti-asthmatic effects via regulating PI3K and Notch signaling and modulating Th1/Th2/Th17 cytokine balance in neonatal asthmatic mice
Asthma is a chronic allergic disease characterized by airway inflammation, airway hyper-responsiveness (AHR), and mucus hypersecretion. T-lymphocytes are involved in the pathogenesis of asthma, mediating airway inflammatory reactions by secreting cytokines. The phosphoinositide 3-kinase (PI3K) and Notch signaling pathways are associated with T cell signaling
Braz J Med Biol Res. Publicado em: 20/07/2017
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7. Enhancement of anti-OVA IgG2c production in vivo by enalapril
Angiotensin-converting enzyme (ACE) inhibitors have non-hemodynamic, pleiotropic effects on the immune response. The effects of ACE inhibitors on the production of cytokines and T-cell functions are well established. However, little is known on the effects of these medicines on humoral response to foreign antigens. In this study, we investigated the effect o
Braz J Med Biol Res. Publicado em: 11/07/2016
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8. Toxocara canis and the allergic process
The protective effect of infectious agents against allergic reactions has been thoroughly investigated. Current studies have demonstrated the ability of some helminths to modulate the immune response of infected hosts. The objective of the present study was to investigate the relationship between Toxocara canis infection and the development of an allergic re
Mem. Inst. Oswaldo Cruz. Publicado em: 2015-09
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9. Treatment with 1,25(OH)2D3induced HDAC2 expression and reduced NF-κB p65 expression in a rat model of OVA-induced asthma
Recent evidence indicates that a deficiency of 1,25-dihydroxyvitamin D3 (1,25[OH]2D3) may influence asthma pathogenesis; however, its roles in regulating specific molecular transcription mechanisms remain unclear. We aimed to investigate the effect of 1,25(OH)2D3 on the expression and enzyme activity of histone deacetylase 2 (HDAC2) and its synergistic effec
Braz J Med Biol Res. Publicado em: 28/04/2015
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10. A novel, donor-active solvent-sssisted liquid-phase microextraction procedure for spectrometric determination of zinc
O presente trabalho descreve o uso de microextração em fase líquida com um solvente doador-ativo para a determinação espectrofotométrica de zinco, em 570 nm, usando a reação com tiocianato e com o reagente brometo de 2-[2-(5-dimetilamino-2-tiofenil)-vinil]-1,3,3-trimetil-3H-indolium (DTVTI). As condições experimentais ótimas foram estabelecidas us
J. Braz. Chem. Soc.. Publicado em: 2014-02
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11. Expression of costimulatory molecules in antigen-activated peritoneal macrophages treated with either ovalbumin or palmitoyl-ova conjugates
One of the mechanisms by which adjuvants are believed to promote T-cell activation and prevent induction of oral tolerance is by up-regulating the expression of co-stimulatory molecules on antigen presenting cells. Mice treated orally with palmitoyl-ovalbumin conjugates become immunized, while those treated with native ovalbumin (Ova) become tolerant. Cells
Braz. arch. biol. technol.. Publicado em: 25/10/2013
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12. Use of sex-sorted and unsorted frozen/thawed sperm and in vitro fertilization events in bovine oocytes derived from ultrasound-guided aspiration
The objective was to investigate the effects of sex-sorting on early fertilization events in ovum pick up (OPU) derived oocytes fertilized in vitro with frozen-thawed sperm at different co-incubation lengths. Eighty-four OPU sessions were carried out in 18 cyclic, dry and non-stimulated Holstein Friesian and German black pied cows. Ovum pick up oocytes were
R. Bras. Zootec.. Publicado em: 2013-10