Objective(s):Some pathologic situations such as diabetes and metabolic syndrome are associated with alternation in nitric oxide level. Incidence of these condition increases with aging. On the other hand, insulin secretion is modulated by nitric oxide, and nitric oxide synthase (NOS) activity is also altered in diabetes. In this study, modification in the enzyme activity associated with aging a...

During the past decade, the development of gene transfer technology provided a powerful and facile tool that afforded the genetic modification of vascular endothelial function. This development has coincided with molecular cloning and extensive accumulation of knowledge concerning the role of nitric oxide synthase isoforms in vascular homeostasis. Experimental evidence continues to accumulate t...

To test the hypothesis that aging impairs endothelial cell response to glucose stress, we utilized a human umbilical vein endothelial cell in vitro model in which clinically relevant concentrations of normal (5.5 mM), high (25 mM), and low (1.5mM) glucose were tested. With advancing population doubling, exposure to normal glucose gradually decreased endothelial nitric oxide synthase expression ...

Endothelial dysfunction plays an important role in the pathogenesis of cardiovascular diseases. Genetic predisposition, metabolic disorders and other effects, including occupational hazards, can lead to formation endothelial dysfunction. The study aims assess polymorphisms candidate genes development diseases persons with pathology. Scientists have found that carriage certain alleles G894T nitr...

eNOS: endothelial nitric oxide synthase Hcy: homocysteine NO: nitric oxide VEGF: vascular endothelial growth factor INTRODUCTION This report shows a positive therapeutic effect of high-dose folic acid plus vitamins B6 and B12 on a patient with palmar plantar pustulosis. Improvement was likely through modulation of homocysteine (Hcy) and nitric oxide (NO) synthase metabolic pathways, and by inhi...

Background: Nitric oxide (NO) produced by endothelial NO synthase (eNOS) mediates a large range of processes, and abnormality in the production of NO has been implicated in diabetic complications including diabetic nephropathy (DN). G894T polymorphism in the eNOS gene has been shown to decreased activity the NO levels of plasma. The association between eNOS Glu298Asp gene polymorphism and DN ri...

Hypertension IS accompanied by architectural changes m the kidney, heart, and vessels that are often maladaptlve and can eventually contribute to end-organ disease such as renal failure, heart failure, and coronary disease Nitric oxide, an endogenous vasodllator and antlthrombotlc agent synthesized m the endothehum by a constltutlve mtnc oxide synthase, mhlblts growth-related responses to injur...

Objective(s): Nitric oxide (NO), a product of inducible nitric oxide synthase (iNOS), contributes in germ cell apoptosis. This study was aimed to evaluate the effects of Aloe vera gel (AVG) on male Wistar rat reproductive organ, serum NO level, and expression of iNOS gene in leydig cells. Materials and Methods:Adult male Wistar rats (n=36) were used for experiments in three groups. The experim...