7 resultados para Agentes anti-inflamatorios

em WestminsterResearch - UK


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Korean mondshood root polysaccharides (KMPS) isolated from the root of Aconitum coreanum (Lévl.) Rapaics have shown anti-inflammatory activity, which is strongly influenced by their chemical structures and chain conformations. However, the mechanisms of the anti-inflammatory effect by these polysaccharides have yet to be elucidated. A RG-II polysaccharide (KMPS-2E, Mw 84.8 kDa) was isolated from KMPS and its chemical structure was characterized by FT-IR and NMR spectroscopy, gas chromatography–mass spectrometry and high-performance liquid chromatography. The backbone of KMPS-2E consisted of units of [→6) -β-D-Galp (1→3)-β-L-Rhap-(1→4)-β-D-GalpA-(1→3)-β-D-Galp-(1→] with the side chain →5)-β-D-Arap (1→3, 5)-β-D-Arap (1→ attached to the backbone through O-4 of (1→3,4)-L-Rhap. T-β-D-Galp is attached to the backbone through O-6 of (1→3,6)-β-D-Galp residues and T-β-D-Ara is connected to the end group of each chain. The anti-inflammatory effects of KMPS-2E and the underlying mechanisms using lipopolysaccharide (LPS) - stimulated RAW 264.7 macrophages and carrageenan-induced hind paw edema were investigated. KMPS-2E (50, 100 and 200 µg/mL) inhibits iNOS, TLR4, phospho-NF-κB–p65 expression, phosphor-IKK, phosphor-IκB-α expression as well as the degradation of IκB-α and the gene expression of inflammatory cytokines (TNF-α, IL-1β, iNOS and IL-6) mediated by the NF-κB signal pathways in macrophages. KMPS-2E also inhibited LPS-induced activation of NF-κB as assayed by electrophorectic mobility shift assay (EMSA) in a dose-dependent manner and it reduced NF-κB DNA binding affinity by 62.1% at 200µg/mL. In rats, KMPS-2E (200 mg/kg) can significantly inhibit carrageenan-induced paw edema as ibuprofen (200 mg/kg) within 3 h after a single oral dose. The results indicate that KMPS-2E is a promising herb-derived drug against acute inflammation.

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The following discussion is intended as a critical intervention into recent debates about the “crisis of the humanities,” reading the symptomaticity of crisis in the medical sense of a turning point. It does so from the perspective of the work of Walter Benjamin, whose own transdisciplinary practice of thought has been characterized as a “philosophy directed against philosophy” and a “philosophizing beyond philosophy,” and stands as a model for the kind of intellectual and para-academic activity evoked here. Historically re-situating Benjamin’s famous allegory of the Angel of History from the twentieth-century context of the “crisis of culture” to the contemporary “crisis of education,” it attempts to reconstruct a dialectical understanding of pedagogization within Benjamin’s work, which is used to sketch out the contours of a critically reimagined pedagogy of the Inhumanities.

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ABSTRACT The purpose of this paper is to explore the political implications of policies and measures designed to promote “localism”. That is to say, the devolution of power down to a neighbourhood level, as enacted under the 2011 Localism Act. The implementation of localism in London boroughs will be examined. The context is the current concern over disengagement in an era of “anti-politics”, so it is intended to gain an understanding of how localism is interpreted and implemented on the ground. A tentative thesis, of a “restorative politics”, is proposed, such that localism is dynamic and is generating healthy political activity which counters anti-politics in the local community. This could have profound implications for the political parties locally and at Westminster. The extant theories about localism include constructivist interpretations suggesting that a neo-liberal localism is anti-political. This is contested. An emerging narrative heralding a new dawn of empowerment, and related themes concerning social capital, subsidiarity and anti-politics are reviewed. A necessarily empirical approach is adopted in an essentially functionalist frame of reference. There is a review of both academic and policy literature, combined with interviews of professionals involved in localism. This paper is designed to scope a future more substantial piece of research. The conference brief asks; “what scales or levels are appropriate for organising politics in this century”. In a century so far characterised by disillusionment, democratic deficits and abstention, the answer may be; local. The Good Life is lived locally in shared experience and familiar surroundings, hitherto not much amenable to local change. Burgundia is a reference to the film “Passport to Pimlico” (1949), when ABSTRACT The purpose of this paper is to explore the political implications of policies and measures designed to promote “localism”. That is to say, the devolution of power down to a neighbourhood level, as enacted under the 2011 Localism Act. The implementation of localism in London boroughs will be examined. The context is the current concern over disengagement in an era of “anti-politics”, so it is intended to gain an understanding of how localism is interpreted and implemented on the ground. A tentative thesis, of a “restorative politics”, is proposed, such that localism is dynamic and is generating healthy political activity which counters anti-politics in the local community. This could have profound implications for the political parties locally and at Westminster. The extant theories about localism include constructivist interpretations suggesting that a neo-liberal localism is anti-political. This is contested. An emerging narrative heralding a new dawn of empowerment, and related themes concerning social capital, subsidiarity and anti-politics are reviewed. A necessarily empirical approach is adopted in an essentially functionalist frame of reference. There is a review of both academic and policy literature, combined with interviews of professionals involved in localism. This paper is designed to scope a future more substantial piece of research. The conference brief asks; “what scales or levels are appropriate for organising politics in this century”. In a century so far characterised by disillusionment, democratic deficits and abstention, the answer may be; local. The Good Life is lived locally in shared experience and familiar surroundings, hitherto not much amenable to local change. Burgundia is a reference to the film “Passport to Pimlico” (1949), when a London neighbourhood declared independence and its citizens temporarily created the Good Life for themselves. Is the 21st century localism generating a restorative politics?