Effect of Symbicort on HAT and HDAC in Sputum Macrophages of COPD

2014-08-27 03:46:09 | BioPortfolio


The purpose of the study is to compare histone acetyltransferase (HAT) and histone deacetylase (HDAC) expressions and activities in induced sputum macrophages obtained from patients with moderate to severe COPD and age-matched normal non-smokers

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Diagnostic


Chronic Obstructive Pulmonary Disease (COPD)


Skin Prick Test, Impulse Oscillometry, Exhaled Nitric Oxide, Spirometry, Reversibility, Exhaled Breath Condensate, Sputum Induction


Section of Airway Disease, Asthma Lab, Imperial College London, Royal Brompton Hospital
United Kingdom




Imperial College London

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:46:09-0400

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A free radical gas produced endogenously by a variety of mammalian cells, synthesized from ARGININE by NITRIC OXIDE SYNTHASE. Nitric oxide is one of the ENDOTHELIUM-DEPENDENT RELAXING FACTORS released by the vascular endothelium and mediates VASODILATION. It also inhibits platelet aggregation, induces disaggregation of aggregated platelets, and inhibits platelet adhesion to the vascular endothelium. Nitric oxide activates cytosolic GUANYLATE CYCLASE and thus elevates intracellular levels of CYCLIC GMP.

An NADPH-dependent enzyme that catalyzes the conversion of L-ARGININE and OXYGEN to produce CITRULLINE and NITRIC OXIDE.

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A CALCIUM-dependent, constitutively-expressed form of nitric oxide synthase found primarily in NERVE TISSUE.

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