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OBJECTIVE: Torcetrapib, a prototype cholesteryl ester transfer protein (CETP) inhibitor with potential for decreasing atherosclerotic disease, increased cardiovascular events in clinical trials. The identified hypertensive and aldosterone-elevating …
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OBJECTIVE: To quantitatively compare aortic curvature and motion with resulting aneurysm location, direction of expansion, and pathophysiological features in experimental abdominal aortic aneurysms (AAAs). METHODS AND RESULTS: MRI was performed at 4.7 T …
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APPL1 (adaptor protein containing PH domain, PTB domain, and leucine zipper motif 1) has been established as an important mediator of insulin and adiponectin signaling. Here, we investigated the influence of transgenic (Tg) APPL1 overexpression in mice on …
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AIMS: Increased cardiac sympathetic neuron (SN) activity has been associated with pathologies such as heart failure and hypertrophy, suggesting that cardiac innervation regulates cardiomyocyte trophism. Whether continuous input from the SNs is required …
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RATIONALE: High-sensitivity in vivo phenotyping of cardiac function is essential for evaluating genes of interest and novel therapies in small animal models of cardiovascular disease. Transthoracic echocardiography is the principal method currently used …
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Background: Western diet, rich in saturated fatty acids and cholesterol, is associated with increased cardiovascular risk. We thus investigated in female mice the influence of this diet on plasma antioxidant status, vascular wall thickening and cardiac …
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Chronic systemic hypertension causes cardiac pressure overload leading to increased myocardial O(2) consumption. Hypoxia-inducible factor 1 (HIF-1) is a master regulator of O(2) homeostasis. Mouse embryos lacking expression of the O(2)-regulated HIF-1α …
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OBJECTIVE: Leptin promotes atherosclerosis and vessel wall remodeling. As abdominal aortic aneurysm (AAA) formation involves tissue remodeling, we hypothesized that local leptin synthesis initiates and promotes this process. METHODS AND RESULTS: Human …
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Ryanodine receptor type 2 (RyR-2) mediates Ca(2+) release from sarcoplasmic reticulum and contributes to myocardial contractile function. However, the role of RyR-2 in the development of cardiac hypertrophy is not completely understood. Here, mice with or …
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BACKGROUND: Cardiac hypertrophy involves growth responses to a variety of stimuli triggered by increased workload. It is an independent risk factor for heart failure and sudden death. Mammalian target of rapamycin (mTOR) plays a key role in cellular …