tungsten/infarction

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A minimally invasive method for induction of myocardial infarction in an animal model using tungsten spirals.

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Most animal models use surgical thoracotomy with ligation of a coronary artery to induce myocardial infarction. Incision of the chest wall and myocardium affect remodeling after myocardial infarction. The aim of our study was to evaluate a new minimally invasive technique for inducing acute

A tungsten-supplemented diet delivered by transplacental and breast-feeding routes lowers intestinal xanthine oxidase activity and affords cytoprotection in ischemia-reperfusion injury to the small intestine.

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Ischemia-reperfusion injury has been implicated as playing a major role in the development of necrotizing enterocolitis, a major cause of morbidity and mortality in the newborn. A tungsten-supplemented molybdenum-free diet can reduce xanthine oxidase (XO) enzyme activity in the intestine, which in

Planar positron imaging of rubidium-82 for myocardial infarction: a comparison with thallium-201 and regional wall motion.

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Rubidium-82 (Rb-82) is a generator-produced, short half-life (76 seconds) positron emitting potassium analog. Using a mobile gamma camera equipped with a rotating tungsten collimator and high-energy shielding, we examined the use of Rb-82 in the coronary care unit and clinical laboratory for

Quantitative planar imaging of glucose metabolic activity in myocardial segments with exercise thallium-201 perfusion defects in patients with myocardial infarction: comparison with late (24-hour) redistribution thallium imaging for detection of reversible ischemia.

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Exercise thallium-201 24-hour redistribution imaging and myocardial glucose metabolism with F-18-deoxyglucose were used to identify reversible ischemia in 30 patients with previous myocardial infarction. Metabolic images were obtained using a planar gamma camera fitted with a rotating tungsten

Nitrogen-13-labeled ammonia for myocardial imaging.

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Cyclotron-produced nitrogen-13 (half-life 10 min), as labeled ammonia (13NH4+), has been evaluated as a myocardial perfusion imaging agent. The regional myocardial uptake of 13NH4+ has been shown to be proportional to regional tissue perfusion in animal studies. Intravenously administered 13NH4+ is

Development and validation of a novel technique for murine first-pass radionuclide angiography with a fast multiwire camera and tantalum 178.

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BACKGROUND The use of genetically altered mice as a model system to study cardiovascular disease has created a need for accurate and quantitative assessment of murine ventricular function. To address this very challenging problem, we have developed a technique of murine first-pass radionuclide

Liquid 2-poly-hydroxyethyl-methacrylate embolization of experimental arteriovenous malformations: feasibility study.

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OBJECTIVE We investigated the use of 2-poly-hydroxyethyl-methacrylate (2-P-HEMA) as an embolic agent in swine arteriovenous malformations (AVMs). METHODS In seven mini swine, experimental AVMs were created surgically. The aim of treatment was complete embolization of the nidus compartment filled by

Lubeluzole shows neuroprotective effects in an "in-vitro"-model for neuronal lesions in the chicken retina.

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In this study, the isolated chicken retina was used as an "in-vitro"-model for investigation of neuronal lesions to show the neuroprotective effects of lubeluzole. Lubeluzole is a neuroprotective compound that has been shown to stereoselectively rescue sensorimotor function and reduce infarct size

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