نتایج جستجو برای: nitrosative stress
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Oxidative and nitrosative stress are primary contributors to the loss of myocardial tissue in insults ranging from ischemia/reperfusion injury from coronary artery disease and heart transplantation to sepsis-induced myocardial dysfunction and drug-induced myocardial damage. This cell damage caused by oxidative and nitrosative stress leads to mitochondrial protein, DNA, and lipid modifications, ...
Although mechanisms involved in the pathogenesis of asthma remain unclear, roles for oxidative/nitrosative stress, epithelial cell apoptosis, and airway inflammation have been documented. Ceramide is a sphingolipid with potent proinflammatory and proapoptotic properties. This study aimed at determining whether increased formation of ceramide contributes to the development of airway inflammation...
Background Nitrosative stress leads to protein glycoxidation, but both processes may be strongly related the cancer development. Therefore, aim of this study was assess nitrosative and glycoxidation products in patients with gastric comparison healthy controls. We are also first evaluate diagnostic utility markers respect histopathological classifications (TNM, Lauren’s Goseki’s classification)...
Neuro-oxidative-nitrosative stress may prove the molecular basis underlying brain dysfunction in sepsis. In the current review, we describe how sepsis-induced reactive oxygen and nitrogen species (ROS/RNS) trigger lipid peroxidation chain reactions throughout the cerebrovasculature and surrounding brain parenchyma, due to failure of the local antioxidant systems. ROS/RNS cause structural membra...
aldosterone is traditionally viewed as a hormone regulating electrolyte and blood pressure homeostasis. recent studies suggest that aldo can cause microvascular damage, oxidative stress and endothelial dysfunction. however, its exact cellular mechanisms remain obscure. this study was undertaken to examine the effect of aldo on superoxide production in human umbilical artery endothelial cells (h...
BACKGROUND Respiratory virus infections are commonly associated with COPD exacerbations, but little is known about the mechanisms linking virus infection to exacerbations. Pathogenic mechanisms in stable COPD include oxidative and nitrosative stress and reduced activity of histone deacetylase-2 (HDAC2), but their roles in COPD exacerbations is unknown. We investigated oxidative and nitrosative ...
Nitrosative stress can occur when reactive nitric oxide (NO) species compromise the function of biomolecules via formation of NO adducts on critical amine and thiol residues. The capacity of inducible nitric-oxide synthase (iNOS) to generate nitrosative stress was investigated in the murine macrophage line ANA-1. Sequential activation with the cytokines IFN-gamma and either tumor necrosis facto...
Host cells respond to infection by generating nitric oxide (NO) as a cytotoxic weapon to facilitate killing of invading microbes. Bacterial flavohaemoglobins are well-known scavengers of NO and play a crucial role in protecting animal pathogens from nitrosative stress during infection. Erwinia chrysanthemi, which causes macerating diseases in a wide variety of plants, possesses a flavohaemoglob...
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