ActinsMuscle, SmoothMusclesMuscle, Smooth, VascularMyocytes, Smooth MuscleRabbitsActin CytoskeletonMuscle ContractionActin Depolymerizing FactorsMuscle ProteinsMuscle, SkeletalCells, CulturedMuscle Fibers, SkeletalMuscle DevelopmentAortaCalciumActin Capping ProteinsTracheaMuscle RelaxationCytoskeletonSmooth Muscle MyosinsRats, Sprague-DawleySignal TransductionRNA, MessengerMuscle Fibers, Fast-TwitchMuscle DenervationPhosphorylationMuscle FatigueMyosinsGuinea PigsMitochondria, MuscleAorta, ThoracicMolecular Sequence DataMuscle Fibers, Slow-TwitchDose-Response Relationship, DrugTime FactorsMuscle, StriatedKineticsIsometric ContractionGene Expression RegulationCell DivisionCell MovementImmunohistochemistryalpha 1-AntitrypsinPlatelet-Derived Growth FactorReceptors, Adrenergic, alphaProtein BindingGizzardEnzyme Inhibitors