نتایج جستجو برای: ketotifen
تعداد نتایج: 351 فیلتر نتایج به سال:
BACKGROUND Histamine exerts diverse effects on immune regulation through four types of histamine receptors (HRs). Among them, type 1 receptor (H1R) plays an important role in allergic inflammation. Dendritic cells (DCs), which express at least three types of HRs, are professional antigen-presenting cells controlling the development of allergic inflammation. However, the molecular mechanisms inv...
Proteinase-activated receptor-2 (PAR-2) and mast cell (MC) mediators contribute to inflammatory and functional gastrointestinal disorders. We aimed to characterize jejunal PAR-2-mediated responses and the potential MC involvement in the early and late phases of a rat model of postinfectious gut dysfunction. Jejunal tissues of control and Trichinella spiralis-infected (14 and 30 days postinfecti...
One titrimetric and two spectrophotometric methods are described for the determination of ketotifen fumarate (KTF) in bulk drug and in tablets using cerium(IV) as the oxidimetric agent. In titrimetry (method A), the drug was treated with a measured excess of cerium(IV) in H2SO4 medium and after a standing time of 10 min, the surplus oxidant was determined by back titration with iron(II). The sp...
abstract ketotifen fumarate is a non-bronchodilator anti-asthmatic drug which inhibits the effects of certain endogenous substances known to be inflammatory mediators, and thereby exerts antiallergic activity. the present study describes the formulation of a sustained release nanoparticle (np) drug delivery system containing ketotifen, using poly (d,l lactide-co-glycolide acid) (plga). biodegra...
Solid facial oedema is a rarely described skin condition, which occurs as a complication of acne vulgaris. Its aetiopathogenesis has not yet been definitively clarified. However, it seems that the key role is played by chronic inflammation that can cause obstruction of lymphatic vessels, cellulitis, fibrosis and oedema. Inherited factors should also be kept in mind. In the course of the illness...
1.We investigated the role of Annexin (ANX)-A1 and its receptor, ALX/FPR2, in the regulation of mast cell degranulation produced by compound 48/80. 2.Both human cord-blood derived mast cells (CBDMCs) and murine bone marrow derived mast cells (BMDMCs) release phosphorylated ANX-A1 during treatment with glucocorticoids or the mast cell 'stabilising' drugs ketotifen and nedocromil. 3.Compound 48/8...
The effect of the testosterone derivative oxymetholone alone or in combination with the H1-receptor antagonist ketotifen, which has recently been shown to block tumour necrosis factor alpha (TNF alpha), on weight gain and performance status in human immunodeficiency virus (HIV) patients with chronic cachexia was evaluated in a 30-week prospective pilot study. Thirty patients were randomly assig...
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