How will crops grow in the future under the intensified conditions of climate change? Upcoming research projects at the University of Bonn will use the new climate chamber greenhouse to explore this question. In this facility, temperature, humidity, and light can be adjusted with the highest precision for experiments. This new climate chamber greenhouse complex, covering 656 square meters, has now been inaugurated at the Faculty of Agricultural, Nutritional and Engineering Sciences and will be used by researchers from several faculties. 

Whether or not a person becomes seriously ill with COVID-19 depends, among other things, on genetic factors. With this in mind, researchers from the University Hospital Bonn (UKB) and the University of Bonn, in cooperation with other research teams from Germany, the Netherlands, Spain and Italy, investigated a particularly large group of affected individuals. They confirmed the central and already known role of the TLR7 gene in severe courses of the disease in men, but were also able to find evidence for a contribution of the gene in women. In addition, they were able to show that genetic changes in three other genes of the innate immune system contribute to severe COVID-19. The results have now been published in the journal “Human Genetics and Genomics Advances”.

Monocytes, a special type of white blood cell, secrete cytokines as inflammatory messengers that are crucial for an appropriate immune response. Researchers at the University Hospital Bonn (UKB) and the University of Bonn have now discovered that platelets, also known as thrombocytes, communicate with monocytes and increase their inflammatory capacity. By understanding the platelet-monocyte interaction, they hope to improve the treatment of immune disorders and associated diseases. The results of the study have now been published in the renowned journal “EMBO Molecular Medicine” and will be featured on the cover of August issue.

Dendritic cells play an important role in setting the course of our immune system. However, what determines their heterogeneity and functional specialization is still not sufficiently understood. An international collaboration consisting of researchers from the University Hospital Bonn (UKB), the University of Bonn and the Technical University of Denmark, among others, has investigated the role of the transcription factor Bcl6 in dendritic cells in a mouse model and discovered that a subgroup is highly dependent on this protein. The findings contribute to a better understanding of immunological processes during infections, vaccinations, allergies and autoimmunity. The results have now been published in the renowned scientific journal "Nature Communications".

Researchers from the University of Southern Denmark, the Novo Nordisk Center for Adipocyte Signaling (SDU), the University of Bonn and the University Hospital Bonn (UKB) have found a protein that is responsible for turning off brown fat activity. This new discovery could lead to a promising strategy for safely activating brown fat and tackling obesity and related health problems. The results of the study have now been published in the journal „Nature Metabolism“.

For successful fertilization, sperm should move forward rapidly and be shaped correctly. The unique structure of the sperm cells forms during spermiogenesis. Now, researchers from the University Hospital Bonn (UKB) and the Transdisciplinary Research Unit "Life & Health" at the University of Bonn have found that fertility problems in both mice and humans can be caused by loss of so-called cylicines. This causes defects in head and tail structure of sperm. The results of the study have now been published in the scientific journal "eLife".

A receding hairline, a total loss of hair from the crown, and ultimately, the classical horseshoe-shaped pattern of baldness: Previous research into male pattern hair loss, also termed androgenetic alopecia, has implicated multiple common genetic variants. Human geneticists from the University Hospital of Bonn (UKB) and by the Transdisciplinary Research Unit “Life & Health” of the University of Bonn have now performed a systematic investigation of the extent to which rare genetic variants may also contribute to this disorder. For this purpose, they analyzed the genetic sequences of 72,469 male participants from the UK Biobank project. The analyses identified five significantly associated genes, and further corroborated genes implicated in previous research. The results have now been published in the prestigious scientific journal Nature Communications.

Our own immune system can become the enemy when mechanisms that are actually protective get out of control. In ANCA-associated vasculitis, excessive inflammatory reactions lead to pulmonary hemorrhages that can be fatal if left untreated. Researchers at the University of Bonn, together with colleagues from Germany, the Netherlands, Switzerland and England, have deciphered a mechanism in mice and patients that leads to the severe disease. The results are now published in the Journal of Experimental Medicine.