Search results for "Soluble guanylyl cyclase"

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NADPH Oxidase Accounts for Enhanced Superoxide Production and Impaired Endothelium-Dependent Smooth Muscle Relaxation in BKβ1 −/− Mice

2006

Objective— Nitric oxide (NO)-induced vasorelaxation involves activation of large conductance Ca 2+ -activated K + channels (BK). A regulatory BKβ1 subunit confers Ca 2+ , voltage, and NO/cGMP sensitivity to the BK channel. We investigated whether endothelial function and NO/cGMP signaling is affected by a deletion of the β1-subunit. Methods and Results— Vascular superoxide in BKβ1 −/− was measured using the fluorescent dye hydroethidine and lucigenin-enhanced chemiluminescence. Vascular NO formation was analyzed using electron paramagnetic resonance (EPR), expression of NADPH oxidase subunits, the endothelial NO synthase (eNOS), the soluble guanylyl cyclase (sGC), as well as the activity a…

medicine.medical_specialtyNitric Oxide Synthase Type IIIEndotheliumAorta ThoracicNitric OxideMuscle Smooth VascularNitric oxideMicechemistry.chemical_compoundSuperoxidesInternal medicineCyclic GMP-Dependent Protein KinasesmedicineAnimalsHumansProtein IsoformsNADH NADPH OxidoreductasesLarge-Conductance Calcium-Activated Potassium ChannelsMice KnockoutNADPH oxidasebiologySuperoxideMicrofilament ProteinsNADPH OxidasesPhosphoproteinsMolecular biologyVasodilationEndocrinologymedicine.anatomical_structurechemistryGuanylate CyclaseNAD(P)H oxidaseNOX1ApocyninNADPH Oxidase 1biology.proteinEndothelium VascularCardiology and Cardiovascular MedicineSoluble guanylyl cyclaseCell Adhesion MoleculesSignal TransductionArteriosclerosis, Thrombosis, and Vascular Biology
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