Nitric oxide (NO) derived from the endothelial NO synthase (eNOS) has antihypertensive, antithrombotic, anti-atherosclerotic and antiobesogenic properties. Resveratrol is a polyphenol phytoalexin with multiple cardiovascular and metabolic effects. Part of the beneficial effects of resveratrol are mediated by eNOS. Resveratrol stimulates NO production from eNOS by a number of mechanisms, includi...

Increased oxidative stress in diabetes mellitus may underlie the development of endothelial cell dysfunction by decreasing the availability of nitric oxide (NO) as well as by activating pro-inflammatory pathways. In the arterial wall, redox imbalance and oxidation of tetrahydrobiopterin (BH4) uncouples endothelial nitric oxide synthase (eNOS). This results in decreased production and increased ...

The hepatopulmonary syndrome (HPS) results from intrapulmonary vasodilation in the setting of cirrhosis and portal hypertension. In experimental HPS, pulmonary endothelial endothelin B (ET(B)) receptor overexpression and increased circulating endothelin-1 (ET-1) contribute to vasodilation through enhanced endothelial nitric oxide synthase (eNOS)-derived nitric oxide (NO) production. In both exp...

Abbreviations: ALS: Amyotrophic Lateral Sclerosis; ATP: Adenosine Triphosphate; CBS: Cystathionine β-Synthase; CNS: Central Nervous System; COMT: Catechol-O-Methyl-Transferase; CYP2E1: Cytochrome P450 2E1; eNOS: Endothelial Nitric Oxide Synthase; Hcy: Homocysteine; L-DOPA: Levodopa; mPT: Mitochondrial Permeability Transition; MPTP: 1-Methyl 4-Phenyl 1,2,3,6-Tetrahydropyridine; MTHFR: Methylene ...

Increased vascular angiotensin-converting enzyme (ACE) activity and oxidative stress are present in young Syrian cardiomyopathic hamsters (SCH) before the clinical manifestation of heart failure (HF). The developmental time-course of these alterations and their potential interactions, however, are still unknown. We evaluated mRNA and protein levels of ACE, endothelial nitric oxide synthase (eNO...

Hyperhomocysteinemia (HHcy) has been associated with impaired vascular endothelial function. Our previous study demonstrated significantly higher secretion of the chemokine monocyte chemoattractant protein-1 from monocytes in response to lipopolysaccharide in patients with HHcy. In the present study, we investigated whether coronary endothelial function was damaged in patients with chronic HHcy...

The aim of this study was to investigate the roles of Pulmonary Microvascular Endothelial Cell Injury (PMECI) and Nitric Oxide (NO) system in diabetic sepsis in rats. 64 Wistar rats were randomly divided into group A (the normal control group), group B (the sepsis group), group C (the diabetes group), and group D (the diabetic sepsis group), the content of pulmonary Evans blue (EBD) was measure...

Nitric oxide (NO) has been implicated in many cellular processes. We examined the temporal and spatial expressions of endothelial nitric oxide synthase (eNOS) and inducible nitric oxide synthase (iNOS) in mouse uteri during the estrous cycle and early pregnancy, as well as the regulation of eNOS and iNOS by estradiol (E2) and progesterone (P4) in ovariectomized mouse uteri using in situ hybridi...

In the vascular system, ageing is accompanied by the accrual of senescent cells and is associated with an increased risk of vascular disease. Endothelial cell (EC) dysfunction is a hallmark of vascular disease and is characterized by decreased angiogenic potential, reduced nitric oxide bioavailability, impaired vasodilation, increased production of ROS, and enhanced inflammation. In ECs, the ma...

BackgroundSodium-glucose cotransporter 2 inhibitors (SGLT2i) clinically reduce atherosclerosis and lower blood pressure. However, their impact on endothelial dysfunction in type diabetes (T2D) remains unclear. In this study, we investigated the protective effect underlying mechanism of SGLT2 inhibitor dapagliflozin diabetes.MethodsVascular reactivity was measured to assess vasoprotective a mous...