Strana 1 z 603 Výsledek
OBJECTIVE
Reactive oxygen species (ROS) such as H2O2 can promote signaling through the inactivation of protein tyrosine phosphatases (PTPs). However, in obesity, the generation of ROS exceeds the antioxidant reserve and can contribute to the promotion of insulin resistance. Glutathione peroxidase 1
BACKGROUND
Both hyperglycemia and obesity are known to cause oxidative stress, which leads to many complications associated with diabetes mellitus. A large number of diabetic patients are obese. Glutathione peroxidase (GPx) is an important indicator of level of oxidative stress.
METHODS
In the
To determine the effect of obesity on expression of cellular- (C-) and extracellular (EC-) glutathione peroxidase (GPX) in serum, kidney and adipose tissue, we measured GPX in serum, kidneys and adipose tissue of the obese Otsuka-Long-Evans-Tokushima Fatty (OLETF) rat and its lean counterpart
Alterations in antioxidant defense in obese people with metabolic syndrome can contribute to oxidative stress. This study assessed the relationship between the parameters of metabolic syndrome and the zincemia, activity of superoxide dismutase, and glutathione peroxidase enzymes in obese women.
BACKGROUND
The prevalence of non-alcoholic fatty liver disease (NAFLD) in obesity is very high. The role of adiponectin receptors in NAFLD progression remains still unclear. We speculate that changes in the hepatic expression levels of the two adiponectin receptors may be associated with the
BACKGROUND
obesity affects more than a third of Mexican population. Oxidative stress participates actively in the etiology of this phenomenon. Glutathione peroxidase-1 (GPX-1) plays a protective role against oxidative stress. The SNP Pro200Leu (rs10504050) has been reported to affect the activity of
Obesity is accompanied by a high incidence of atherosclerosis, arterial hypertension and non-insulin dependent diabetes mellitus in the pathogenesis of which is associated with oxygen-derived free radicals. The aim of the study was to compare blood oxidation status in obese women without coexisting
OBJECTIVE
In order to gain deeper insight into molecular mechanisms underlying oxidative stress (OS) and its relation to insulin resistance and hyperandrogenemia, plasma markers of OS and antioxidant glutathione-peroxidase (GPX) activity were studied in non-obese polycystic ovary syndrome (PCOS)
OBJECTIVE
Menopause is frequently associated with an increase in visceral fat, thus modifying redox status by promoting oxidative damage and decreasing antioxidant defense systems. It is known that at higher concentrations estradiol has some antioxidant properties, while its decline in postmenopause
OBJECTIVE
To evaluate the levels of Interleukin-6 (IL-6), glutathione peroxidase and isoprostane in obese women and their association with markers of cardiovascular risk factors before and after weight loss.
METHODS
36 healthy obese women of reproductive age (group A: age (mean+/-SD) 35.4+/-9.2
OBJECTIVE
Alterations in selenium (Se) status may result in suboptimal amounts of selenoproteins, which have been associated with increased oxidative stress levels. The Pro198Leu polymorphism at the glutathione peroxidase-1 (GPx1) gene is supposed to be functional. The response of Se status, GPx
Glutathione peroxidase 3 (GPx3) accounts for the major antioxidant activity in the plasma. Here, we demonstrate that down-regulation of GPx3 in the plasma of obese subjects is associated with adipose GPx3 dysregulation, resulting from the increase of inflammatory signals and oxidative stress.
Oxidative stress has been considered to contribute to the development of obesity-related metabolic disorders including insulin resistance. To the contrary, deficiency of an anti-oxidizing enzyme, glutathione peroxidase (GPx)-1, was reported to enhance insulin signaling, suggesting that OBJECTIVE
Overweight and obesity are considered complex entities in which there are alterations in the concentration of antioxidant enzymes. It has been reported that glutathione peroxidase 3 (GPx3), an extracellular enzyme involved in the reduction of both hydro- and lipoperoxides, shows changes
Glutathione peroxidases (GPxs) belong to the eight-member family of phylogenetically related enzymes with different cellular localization, but distinct antioxidant function. Several GPxs are important selenoproteins. Dysregulated GPx expression is connected with severe pathologies, including obesity