Hepatocellular carcinoma develops in cirrhotic liver. The nitric oxide (NO) synthase type III (NOS-3) overexpression induces cell death in hepatoma cells.
Raúl González+10 more
doaj +4 more sources
Transcriptional Induction of Endothelial Nitric Oxide Synthase Type III by Lysophosphatidylcholine [PDF]
Endothelial synthesis of NO is catalyzed by constitutive NO synthase type III (NOS-III). NOS-III has been thought to be regulated mainly at the level of enzyme activity by intracellular calcium. We report that in human umbilical vein endothelial cells lysophosphatidylcholine (lyso-PC), a component of atherogenic lipoproteins and atherosclerotic lesions,
Kenneth K. Wu+2 more
openaire +5 more sources
Localization of nitric oxide synthase type III in the internal thoracic and radial arteries and the great saphenous vein: A comparative immunohistochemical study [PDF]
Endothelial nitric oxide synthase type III is the key enzyme of the nitric oxide production in the vessel wall. In this study the localization of endothelial nitric oxide synthase type III within the wall of the human internal thoracic and radial arteries and the great saphenous vein was investigated.Specimens were harvested from 23 patients undergoing
Gaudino, M.+4 more
+7 more sources
Distinct Dimer Interaction and Regulation in Nitric-oxide Synthase Types I, II, and III [PDF]
Homodimer formation activates all nitric-oxide synthases (NOSs). It involves the interaction between two oxygenase domains (NOSoxy) that each bind heme and (6R)-tetrahydrobiopterin (H4B) and catalyze NO synthesis from L-Arg. Here we compared three NOSoxy isozymes regarding dimer strength, interface composition, and the ability of L-Arg and H4B to ...
Robin J. Rosenfeld+5 more
openaire +5 more sources
Increased renal expression of nitric oxide synthase type III in cirrhotic rats with ascites [PDF]
This article assesses the circulating levels of l-arginine, the renal response to l-arginine infusion, and the renal expression of inducible and constitutive nitric oxide synthase (NOS II and NOS III, respectively) in cirrhotic rats with ascites.
Wladimiro Jiménez+9 more
openaire +5 more sources
Atorvastatin Upregulates Type III Nitric Oxide Synthase in Thrombocytes, Decreases Platelet Activation, and Protects From Cerebral Ischemia in Normocholesterolemic Mice [PDF]
Background and Purpose —Thrombosis superimposed on atherosclerosis causes approximately two thirds of all brain infarctions. We previously demonstrated that statins protect from cerebral ischemia by upregulation of endothelial type III nitric oxide synthase (eNOS), but the downstream mechanisms have not been determined ...
Karen Gertz+6 more
+6 more sources
Nonpregnant Sheep Uterine Type I and Type III Nitric Oxide Synthase Expression Is Differentially Regulated by Estrogen1 [PDF]
The aim of this study was to characterize the effect of estrogen on the expression of neuronal and endothelial isoforms of nitric oxide (NO) synthase (NOS) in myometrium, endometrium, and caruncle (nonglandular endometrium) in nonpregnant sheep. Twenty sheep were castrated during synchronized estrus (Days 14-16) and 4 days after surgery treated i.v ...
C. P. Mirabile+3 more
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Nitric Oxide-dependent Parasympathetic Signaling Is Due to Activation of Constitutive Endothelial (Type III) Nitric Oxide Synthase in Cardiac Myocytes [PDF]
Nitric oxide synthase (NOS) isoforms are discovered in an increasing variety of cell types with different roles in signaling. The inducible NOS (i.e. iNOS or NOS II) is expressed in cardiac myocytes in response to specific cytokines. Independent of iNOS induction, however, receptor-dependent signaling is modulated by a constitutive nitric oxide (NO ...
David M. Kaye+8 more
openaire +5 more sources
Endothelial Nitric-oxide Synthase (Type III) Is Activated and Becomes Calcium Independent upon Phosphorylation by Cyclic Nucleotide-dependent Protein Kinases [PDF]
Endothelial nitric-oxide synthase (NOS-III) is defined as being strictly dependent on Ca(2+)/calmodulin (CaM) for activity, although NO release from endothelial cells has been reported to also occur at intracellular free Ca(2+) levels that are substimulatory for the purified enzyme.
Suzanne M. Lohmann+8 more
openaire +5 more sources
Chimeras of Nitric-oxide Synthase Types I and III Establish Fundamental Correlates between Heme Reduction, Heme-NO Complex Formation, and Catalytic Activity [PDF]
Neuronal nitric-oxide synthase (nNOS or NOS I) and endothelial NOS (eNOS or NOS III) differ widely in their reductase and nitric oxide (NO) synthesis activities, electron transfer rates, and propensities to form a heme-NO complex during catalysis.
Dennis J. Stuehr+2 more
openaire +4 more sources