Fibrosis (scar tissue formation) is the determinant lesion in the subsequent evolution of the heart in a patient with high blood pressure. This item appeared in the latest edition of Nature Clinical Practice Cardiovascular Medicine, a journal that is part of the Nature group. The article published heart research recently carried out at the University of Navarra.
When arterial blood pressure rises, we have what is known as high blood pressure and the heart becomes overloaded, as it were: it pumps blood against the greater resistance created by this extra pressure. During most of the XX century doctors believed that the growth of cardiac muscle (left ventricular hypertrophy or LVH) presented by patients with high blood pressure was beneficial for the heart. It was thought that this change enabled the pumping of blood with greater force, compensating for the greater resistance due to higher blood pressure.
However, clinical and epidemiological studies at the end of the last century revealed that high blood pressure patients with LVH showed more frequent and more severe cardiac complications than high blood pressure individuals without LVH. This led a number of clinical and basic research groups to the hypothesis that not everything was quite right with the idea that hypertrophy of the cardiac muscle was the answer to high blood pressure. They also believed that, masked by the hypertrophy, they might find decisive alterations which, in the long term, might suggest a prognosis of high blood pressure cases with LVH worse than those without. It was now thought that the heart in high blood pressure cases may suffer structural changes thus producing massive scarring (myocardial fibrosis).
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In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.
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Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.
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For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.
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Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
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