Search results for "Rite"

Cationic Proteins Inhibit l-Arginine Uptake in Rat Alveolar Macrophages and Tracheal Epithelial Cells

1999

Eosinophil-derived cationic proteins play an essential role in the pathogenesis of bronchial asthma. We tested whether cationic proteins interfere with the cationic amino-acid transport in alveolar macrophages (AMPhi) and tracheal epithelial cells, and whether L-arginine-dependent pathways were affected. The effect of cationic polypeptides on cellular uptake of [(3)H]-L-arginine, nitrite accumulation, and the turnover of [(3)H]-L-arginine by nitric oxide (NO) synthase and arginase (formation of [(3)H]-L-citrulline and [(3)H]-L-ornithine, respectively) were studied. Poly-L-arginine reduced [(3)H]-L-arginine uptake in rat AMPhi and tracheal epithelial cells in a concentration-dependent manner…

Potential biological role of laccase from the sponge Suberites domuncula as an antibacterial defense component

2014

Abstract Background Laccases are copper-containing enzymes that catalyze the oxidation of a wide variety of phenolic substrates. Methods We describe the first poriferan laccase from the marine demosponge Suberites domuncula. Results This enzyme comprises three characteristic multicopper oxidase homologous domains. Immunohistological studies revealed that the highest expression of the laccase is in the surface zone of the animals. The expression level of the laccase gene is strongly upregulated after exposure of the animals to the bacterial endotoxin lipopolysaccharide. To allow the binding of the recombinant enzyme to ferromagnetic nanoparticles, a recombinant laccase was prepared which con…

Interaction of dicaffeoylquinic derivatives with peroxynitrite and other reactive nitrogen species.

2008

Plant phenolic antioxidants, among them catechins and hydroxycinnamoyl conjugates, constitute a well defined class of inhibitors of reactive nitrogen species (RNS). To gain deeper insight in this field, we examined the effects of 3,5-di-O-caffeoylquinic acid (DCA), its methyl ester (DCE) and epigallocatechin gallate (EGCG) in nitrative and oxidative processes. These compounds were found to be strong inhibitors of the nitration of tyrosine residues induced by ONOO- in bovine seroalbumin, with their IC50 values (10-40 microM) notably decreasing in the presence of bicarbonate. When studied on the intracellular protein tyrosine nitration induced by ONOO- in cultured murine fibroblasts as well a…

Bcl-2 is a negative regulator of interleukin-1β secretion in murine macrophages in pharmacological-induced apoptosis

2010

BACKGROUND AND PURPOSE Cucurbitacin R, a natural anti-inflammatory product, has been shown to exhibit activity against both adjuvant-induced arthritis and delayed-type hypersensitivity reactions induced by various agents. Previous studies have demonstrated that the effects of cucurbitacin R stem from its inhibition of both cytokine production and lymphocyte proliferation. EXPERIMENTAL APPROACHES Effects of cucurbitacin R were investigated on lipopolysaccharide-stimulated RAW 264.7 cells. Cell cycle evolution was analysed by flow cytometry, detection of apoptosis by DNA ladder, Bcl-2, p21, p53, Bax, cleaved caspase-1 (p10), caspase-9, and caspase-3, cleaved caspase (p17) and interleukin-1β d…

Bupleurum dianthifolium Guss. In: Rossi G., Foggi B., Gennai M., Gargano D., Montagnani C., Orsenigo S., Pedrini S. Schede per una Lista Rossa della …

2013

« LITTERATUR och LAG » : Skandinavisk kultur och litteratur i ett internationellt och tvärvetenskapligt perspektiv

2014

Raksti no Starptautiskās Skandināvistikas studiju asociācijas (IASS) 29. zinātniskās konferences Rīgā un Daugavpilī 2012.

Feux: les labyrinthes de l’effacement

1988

Estudio sobre la presencia-ausencia de la autora en "Feux" de Marguerite Yourcenar.

'No speech at my command will fit the forms in my mind': Shaping the Spiritual through Writing and Typing in George MacDonald’s Lilith Manuscripts

2020

International audience; In “Lilith B” (1893), the most extensively rewritten draft of George MacDonald’s fantasy novel Lilith (1895), puzzling triangular-shaped insertions, some handwritten and some typed, although not retained in the later versions of the text, allow for a better understanding of the creative process and show how the material crafting of the manuscript, through collage and combination techniques, played a part in the invention of fantasy. The introduction of the typewriter as a new drafting tool in MacDonald’s writing habits, not only for copying but also for revising, corresponds to a shift in the metaphorical and allegorical system which enables the parallel worlds of th…

Leo Tolstoy’s and Joseph Conrad’s Relation to Music

2017

It is important to stress that Tolstoy’s and Conrad’s texts are to be understood to include not only literary, and thus verbal, texts but also elements of other media, such as music, theatre and visual arts. It should be noted that for Conrad music was also one of the arts that he greatly appreciated. Though Conrad’s main concern was to make us “see,” he was also concerned with making us “hear.” The use of music to accompany sexual desire, frustration and violence is a technique often used by the writer. Likewise, music had an enormous infl uence on Tolstoy. He was fascinated with its power, just as with the power of sexuality, beauty and war. His favourite composer was Chopin, but he also …

Discussing Tourism as a Rite of Passage

2018

This chapter recapitulates the discussion originated by John Tribe respecting to the dispersion of produced knowledge in tourism. We critically give a new fresh paradigm in order for readers to understand what tourism is. This chapter centers on themes I am not accustomed to discuss but are very important to the epistemological advance of the discipline, precisely in a moment where the epistemology of tourism enters in a serious crisis. Though I here am synthesizing my experience as author, reviewer and editor, no less true is that it situates as a complementary platform to expand the current understanding of tourism and its intersection in culture.