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35 Current news of Christian-Albrechts-Universität zu Kiel

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Protection against COVID-19: experience is not always an advantage for the immune response

A good response to the SARS-CoV-2 vaccination is based on naive immune cells, whereas pre-existing memory cells are rather disadvantageous

16-Aug-2022

People who have often been infected by common cold viruses – which also belong to the coronaviruses – are not better protected against COVID-19, neither after infection with SARS-CoV-2 nor after vaccination. "We already showed in 2020 that earlier exposure to common cold viruses does not provide ...

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Breakthrough: Prospect of blood test for Parkinson’s disease for the first time

A new method reliably detects protein changes in blood that are typical of Parkinson's disease: "The results are really sensational"

22-Jun-2022

Until now, the diagnosis of Parkinson's disease has been based primarily on typical movement disorders such as muscle stiffness, slower movements and shaking. However, the disease starts up to twenty years before it becomes noticeable as a result of these symptoms. To date, there have been ...

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Last line of defense: How bacterial populations are protected against viral infections

Bacterial dynamin protein is involved in a previously unknown protective mechanism against bacteriophage infections

18-Feb-2022

Bacteria as unicellular organisms are attacked by specialised viruses, the so-called bacteriophages or phages for short. To defend themselves against phage infections, bacteria feature a multi-stage protective mechanism, which in principle consists of components of an innate and an acquired ...

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Previously unknown mode of bacterial growth discovered

Research teams use imaging and modelling to explain why single bacterial cells do not always grow exponentially

18-Nov-2021

Bacteria as unicellular organisms reproduce by dividing their entire organism. In this way, they can multiply particularly quickly, which allows the exponential growth of bacterial populations, also known from pathogens. The population growth is based on the growth of the individual bacterial ...

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Apparently, opposites attract in bacteria as well

Ecologists identify a new rule on how bacterial communities form

04-Nov-2021

The fact that different bacterial strains interact with each other and exchange substances is essential, for example, for the production of yogurt or in maintaining our healthy intestinal flora. But how do bacteria choose their interaction partners? The research group of ecologist Prof. Dr. ...

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Can living organisms influence changes in their genes?

Researchers succeed for the first time in demonstrating that changes in certain proteins involved in packaging of the genetic material have a causal effect on the frequency of mutations

11-Oct-2021

The change of genetic information over time is a key factor for evolutionary adaptations with which living beings can adapt to changes in their environment. On the one hand, genetic variability arises in the course of reproduction, where genetic information is divided and recombined in the ...

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Large genomic analysis highlights COVID-19 risk factors

An international collaboration uncovers several genetic markers associated with SARS-CoV-2 infection or COVID-19 severity

13-Jul-2021

In March of 2020, thousands of scientists around the world united to answer a pressing and complex question: what genetic factors influence why some COVID-19 patients develop severe, life-threatening disease requiring hospitalization, while others escape with mild symptoms or none at all? A ...

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Molecular Assistance: Molecule layer aids chemoselective hydrogenation on solid palladium catalysts

How to obtain a palladium catalyst for the selective hydrogenation of acrolein

24-Jun-2021

Chemical reactions don’t always go to plan. Unwanted by-products lead to extra costs and waste resources. Selective catalysts can help, but chemists have to test out large numbers before they find the right fit. Researchers have now investigated, on an atomic level, how to obtain a palladium ...

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Watching cell division live

Highest resolution insights into living cells

16-Apr-2021

Bacteria as unicellular organisms normally reproduce by binary cell division, i.e. the duplication of the entire organism consisting of a single cell. This allows particularly rapid multiplication, such as the exponential growth known from pathogens, and requires the separation and distribution ...

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COVID-19: Release of immature blood cells from bone marrow as a signature of severe disease

Research team has identified cell types in the blood that indicate severe disease progression in COVID-19

30-Nov-2020

In severe cases of COVID-19 disease, not only classic immune cells play a role. In particular, the release of immature precursor cells from the bone marrow into the blood indicates a particularly severe course of the disease and could contribute to complications. This has been shown by an ...

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