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A research group at the University of Lausanne has identified a new mechanism that exposes the vulnerability of tumor cells when they are deprived of vitamin B7. The ability of cells to adapt to fluctuations in nutrient availability is essential to life. Yet, some cells become highly dependent on glutamine, an amino acid that plays a central role in cellular metabolism.

Scientists at the University of Lausanne have identified a novel mechanism by which the immune system identifies endotoxin, a key molecule present in the membrane of certain bacteria. Published in the scientific journal Immunity, this discovery opens up promising prospects for the management of severe infections and the prevention of septic shock.

A study conducted by two researchers at the Institute of Psychology at the University of Lausanne sheds light on the impact of personality on the way we feel and control our emotions. The research questions the effectiveness of two strategies commonly used to manage emotions. Learning to manage our emotions is a daily challenge, both to preserve our personal equilibrium and to promote harmonious relations with others.

A discovery by an international team, including scientists from the University of Lausanne and the CHUV, provides new evidence of a wide diversity of pathogens in the Americas long before the arrival of Europeans. Scientists have succeeded in reconstructing the genome of Treponema pallidum - the bacterium whose subspecies are now responsible for four treponemal diseases.today responsible for four treponemal diseases, including syphilis - from 5500-year-old human remains discovered in the Sabana of Bogotá, Colombia.

AI-generated images of "professional golfers" show elegant, but hypersexualized women: shorts too short, suggestive poses, far from the reality of the sport.

The measures introduced in Switzerland to improve protection for cyclists at intersections have their limits in practice, as a study by the University of Lausanne has shown. Many cyclists fear riding in the center of the lane at roundabouts, or hesitate to turn right at red lights when authorized. This may be due to a feeling of lack of legitimacy, fear of being stigmatized or fears for their safety.

When we think of microbiota, we usually think of our gut. However, there is another, lesser-known type of microbiota that also plays a central role: the plant microbiota. In an article that appeared on the cover of the October 2, 2025 issue of "Science", Prof. Niko Geldner and his team at the University of Lausanne have unraveled the intricate web of the "phytobiota", where, sheltered underground, bacteria and roots cultivate a bittersweet love affair.

Scientists in Lausanne have developed an innovative antiviral treatment, still in the experimental stage, capable of inhibiting the action of a wide range of respiratory viruses, including influenza and bronchiolitis. Published in "Science Advances", the study opens up promising therapeutic avenues.

Certain species of non-venomous spiders, such as the Uloboridae, neutralize their prey by regurgitating toxins rather than biting them. This hunting technique enables them to immobilize other insects, as revealed by a study conducted by the Department of Ecology and Evolution at the University of Lausanne and published in "BMC Biology".

Research at the University of Lausanne's School of Criminal Sciences combines infrared spectroscopy and AI for fast, reliable detection in the field. The research, led by Hervé Rais, Olivier Delémont and Pierre Esseiva, involves deploying portable and rapid techniques for the detection and analysis of falsified medicines.

The brain's ability to integrate internal body signals with external stimuli is essential for survival. A recent study led by Marzia De Lucia in the Department of Clinical Neurosciences at CHUV reveals that this mechanism persists even in coma Our body and brain are in constant interaction. This dialogue is crucial not only for reacting to signals from our organs, but also for interpreting stimuli from our environment.

Why do some ancient animals become fossils, while others vanish without a trace - A new study from the University of Lausanne reveals that the size and chemical composition of an animal are among the determining factors in its chances of surviving millions of years as a fossil, or vanishing without a trace.that an animal's size and chemical composition are among the determining factors in its chances of surviving millions of years as a fossil, or vanishing without a trace.

Scientists at the FBM-UNIL have identified a new role for the locus coeruleus in sleep and sleep disorders. This brain region enables the transition between sleep states and the maintenance of essential unconscious vigilance. Stress disrupts its functions and impacts sleep quality. Sleep disorders affect a growing number of people, with potentially serious consequences for their health.

By analyzing a Martian meteorite, scientists from the University of Lausanne and Curtin University have discovered traces of water dating back 4.45 billion years in the crust of Mars, i.e. to the beginning of the Red Planet's formation. This new information reinforces the hypothesis that Mars may have been habitable at some point in its history.

Unlike oceans, lakes are major emitters of CO2. Why is this so, and what mechanisms are at work? Scientists at the University of Lausanne have succeeded in explaining the complete carbon cycle in Lake Geneva for the first time, generating a model that can be applied to several of the world's great lakes.

A new study from the University of Lausanne reveals how cities influence precipitation and storms, and are prone in summer to more severe and localized rainfall events than surrounding areas. This phenomenon could lead to an increased risk of flooding in the future, as urban areas expand in line with global warming.

A study by the University of Lausanne presents a new sorting method designed to optimize bacterial communities for efficient degradation of pollutants in the environment. The ability of microbes to metabolize a wide variety of compounds, including industrial pollutants of human origin, offers considerable potential for solving environmental problems.

As part of the GreenFjord project, prof. Samuel Jaccard from the University of Lausanne and five other scientists board the sailing vessel Forel to carry out a sampling and analysis campaign in SW Greenland.