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Background—The molecular mechanisms by which physical training improves peripheral and coronary artery disease are poorly understood. Bone marrow– derived endothelial progenitor cells (EPCs) are thought to exert beneficial effects on atherosclerosis, angiogenesis, and vascular repair. Methods and Results—To study the effect of physical activity on the bone(More)
3-Hydroxy-3-methylglutaryl coenzyme A reductase inhibitors (statins) may exert direct effects on vascular cells and beneficially influence endothelial dysfunction. Because reactive oxygen species (ROS) may lead to vascular damage and dysfunction, we investigated the effect of atorvastatin on ROS production and the underlying mechanisms in vitro and in vivo.(More)
Oxidative stress plays a pivotal role in the pathogenesis of atherosclerosis and can be effectively influenced by radical scavenging enzyme activity and expression. The vasoprotective effects of estrogens may be related to antioxidative properties. Therefore, effects of 17beta-estradiol on production of reactive oxygen species and radical scavenging enzymes(More)
OBJECTIVE Peroxisome-proliferator-activated-receptor-γ (PPARγ) acts as a transcriptional regulator of multiple genes involved in glucose and lipid metabolism. In vitro studies showed that activated PPARγ suppresses AT1R-gene expression and vice versa. However, it has not yet been determined in vivo, whether AT1R-PPARγ-interactions play a relevant role in(More)
Circulating endothelial progenitor cells (EPC) contribute to endothelial replenishment. Telmisartan is an angiotensin-receptor blocker with PPARgamma-agonistic properties. PPARgamma-agonists and HMG-CoA reductase inhibitors have been shown to enhance EPC number and function. We focused on the effects of telmisartan alone or in combination with simvastatin(More)
Background—We recently showed that the multidrug resistance related protein-1 (MRP1) is important for the management of oxidative stress in vascular cells. However, the underlying mechanism and the in vivo relevance of these findings remain elusive. We hypothesize that inside-outside transport of leukotriene C 4 (LTC 4) via MRP1 is a substantial(More)
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