In the treatment of coronary artery disease, a sirolimus drug-coated stent causes less inflammation than bare metal stents, according to preliminary research presented at the American Heart Association annual meeting by Loyola University Health System, Maywood, Ill.
“Inflammatory response is a sign of advancing heart disease, so the less inflammation the better,” said lead author Dr. Fred Leya, professor of medicine/cardiology, Loyola University Chicago Stritch School of Medicine.
Stents are small stainless steel coils or scaffolds which are used to keep blood vessels open and maintain blood flow to the heart. The drug-coated stent reduces the risk of restenosis (renarrowing) of blood vessels after angioplasty, a common problem with earlier stents, where 30 percent of arteries renarrowed. “Many times with the earlier stents, tissue cells grew too much scar tissue, renarrowing the artery that the stent was supposed to widen,” said Leya, director, interventional cardiology and director, cardiac catherization lab at Loyola. Leya said that the FDA-approved stent produces immediate results. “It is especially appropriate for diabetics, because they have smaller arteries and thus a greater risk of restenosis of coronary vessels following angioplasty,” he said.
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For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
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Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
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Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
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Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...
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19.07.2018 | Materials Sciences