Stroke: Macrophages migrate from the blood

Macrophages are part of the innate immune system and essential for brain development and function. Using a novel method, scientists from Jena University Hospital, the University of Bonn and the Memorial Sloan Kettering Cancer Center in New York (USA) succeeded in visualizing macrophages that were formed in the bone marrow. In studies on mice, this technology enabled the researchers to observe that shortly after a stroke, numerous macrophages that had migrated from the blood begin to attack dead and adjacent healthy brain tissue. The results have now been published in the journal "Nature Neuroscience".

Members of the university association elect Michael Hoch as "Rector of the Year"

The Rector of the University of Bonn, Prof. Dr. Dr. h.c. Michael Hoch, receives the award "Rector/President of the Year" from the German Association of University Professors and Lecturers (DHV) for his exemplary leadership. The prize winner was selected in an online survey of the association's almost 32,000 members.

Prof. Christian Kurts appointed honorary professor of the University of Melbourne

Prof. Dr. Christian Kurts, Professor of Experimental Immunology at the University of Bonn, has been appointed honorary professor at the Department of Microbiology and Immunology at the University of Melbourne. With this appointment, Australia's leading university acknowledges the achievements in establishing a scientific network between Melbourne and Bonn. Prof. Kurts is a recipient of the Gottfried-Wilhelm-Leibniz-Prize and is director of the Institute of Experimental Immunology at the University Hospital Bonn.

Galaxy formation simulated without dark matter

For the first time, researchers from the Universities of Bonn and Strasbourg have simulated the formation of galaxies in a universe without dark matter. To replicate this process on the computer, they have instead modified Newton's laws of gravity. The galaxies that were created in the computer calculations are similar to those we actually see today. According to the scientists, their assumptions could solve many mysteries of modern cosmology. The results are published in the "Astrophysical Journal".

Less advertising for high-calorie snacks on children's TV

The number of overweight children has increased significantly. In addition to psychological problems, chronic diseases such as diabetes, high blood pressure and joint wear and tear are on the rise. Some food and beverage companies have signed a voluntary commitment at EU level to restrict advertising of foods high in fat, sugar and salt to children. A study by scientists at the University of Bonn shows: The number of corresponding commercials aimed at children decreased in Germany once this agreement had been put in place, but the companies also exploit loopholes. The results have now been published in the journal "Food Policy".

Unlocking the secret of cell regulation

Ribonucleic acids (RNA) ensure that the blueprint in the cell nucleus is translated into vital proteins and that cell functions are regulated. However, little is known about the structure and function of particularly long RNAs, which consist of hundreds or thousands of building blocks. Chemists at the University of Bonn have now developed a new method for this purpose: They mark the complex molecules with tiny "flags" and measure the distances between them with a "molecular ruler". The results are published online in advance in the journal "Angewandte Chemie International Edition". The print version will be published shortly.

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