نتایج جستجو برای: oxazolone
تعداد نتایج: 441 فیلتر نتایج به سال:
BACKGROUND Transforming growth factor (TGF)-beta is an important modulator of immune functions and cellular responses, such as differentiation, proliferation, migration and apoptosis. The Smad proteins, which are intracellular TGF-beta signal transducers, mediate most actions of TGF-beta. OBJECTIVES This study examines the role of Smad3 in a murine model of contact hypersensitivity (CHS). M...
il-1β and il-17a are two cytokines with strong proinflammatory activities and are now known to be involved in a number of chronic inflammatory disorders. high-mobility group box 1 (hmgb1) is a nuclear protein regulating the expression of these proinflammatory cytokines. the nlrp3 inflammasome promotes the maturation of the il-1β and its activation has been shown as a critical mechanism in the p...
Methanobactin (mb) is a small copper-binding peptide produced by methanotrophic bacteria and is intimately involved in both their copper metabolism and their role in the global carbon cycle. The structure for methanobactin comprises seven amino acids plus two chromophoric residues that appear unique to methanobactin. In a previously published structure, both chromophoric residues contain a thio...
A new catalyst was prepared by promoting fly ash with hydrogen peroxide. The catalytic activity of H2O2 promoted fly ash (HPFA) was evaluated by synthesis 5(4H)-oxazolone and imidazolone derivatives under solvent free conditions. The possible mechanisms of synthesis reactions were also suggested. These proposed methods benefit in terms of low-cost catalyst, high yields, ease of workup, survival...
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