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Autism: How gene alteration modifies social behavior

Autism occurs in about one percent of the population and is characterized by alterations in communication, repetitive behavior and social difficulties. There are numerous genetic factors involved in the development of…


Perfect balance: How the brain fine-tunes its sensitivity

We are constantly exposed to a wide range of sensory stimuli, from loud noises to whispers. In order to efficiently process these diverse stimulus intensities, the brain needs to strike a balance in its responsiveness. An…


Bacteria acquire resistance from competitors

The frequent and sometimes careless use of antibiotics leads to an increasingly rapid spread of resistance. Hospitals are a particular hot spot for this. Patients not only introduce a wide variety of pathogens, which may…


Speed controllers for protein production

Proteins perform various jobs in cells, they catalyze thousands of biochemical reactions, relay signals and are required for building cellular structures and transport processes. Within every single cell of our body vast…


Should I stay or should I go: Hospital germ’s dual strategy

In Switzerland, it is not uncommon for a patient to develop an infection during a hospital stay. One reason for this is insufficient hygiene, as shown recently in a study by the Swiss Agency for Therapeutic Products,…


Immune defense without collateral damage

In the human body’s fight against bacterial pathogens, white blood cells are in the front line. They identify and ingest the invaders, and render them harmless using highly toxic substances. It is important that these…


Bacterial nanosized speargun works like a power drill

Millions of tiny microbes on leaves, stones or our skin jostle for space. And almost everywhere they have to compete for resources and nutrients. In the course of evolution, some bacteria have therefore developed a weapon to…


Virulence could be the Achilles heel of pathogens

Bacteria are masters of survival. Pathogens, for example, produce a range of molecules enabling them to infect their hosts and to evade the immune defense. The entero-pathogenic bacterium Salmonella enterica Typhimurium uses…


Bacterial nano-speargun as a precision weapon

No matter where you go, you always find someone there already. This is true for many living creatures but especially for bacteria. In order to be able to stand their ground and eliminate unwanted rivals, many bacteria rely…


Genetic engineering in research: same same, but different

The cell envelope is covered with a wide variety of receptor proteins. They are the sensors to the environment, perceive signals such as the availability of nutrients and transmit this information to the inside of the cell.…