338 search results for “antibiotics” in the Public website
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Leiden researchers visualise the 'guardian of our genome’
The guardian of our genome, the protein MutS, scans the DNA for spelling errors and makes sure they are corrected. An essential process for our health. Researchers at Leiden University Medical Centre (LUMC) have discovered precisely how this protein works by making MutS visible with cryo-electron microscopy.…
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A unique defence: Bacteria lose cell wall in the presence of virus
Bacteria temporarily live without their cell wall if dangerous viruses are near. A remarkable feature, as the cell wall is a sturdy barrier against threats. Still, the discovery has a logical explanation ánd might be of a consequence for fighting pathogenic bacteria, according to Véronique Ongenae,…
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How cholera bacteria make people so sick
The enormous adaptability of the cholera bacterium explains why it is able to claim so many victims. Professor Ariane Briegel from the Leiden Institute of Biology has now discovered that this adaptability is due to rapid sensory changes in the bacterium. Publication in PNAS.
- Publication highlights
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NWO awards curiosity-driven research Ariane Briegel with grant
Professor of Ultrastructural Biology Ariane Briegel has received a grant in the NWO Open Competition Domain Science in the XS category. This grant emphatically encourages curiosity-driven and bold research with a maximum of 50,000 euros.
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Inaugural lecture Annemarie Meijer
On Monday 21 September Annemarie Meijer, Professor of Immunobiology, presented her inaugural lecture on immunobiology and infectious disease.
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Academic Pharma submits application to National Growth Fund
Knowledge institutions in the Netherlands are to work together with the pharma and biotech industries to accelerate drug discovery and development. To bridge the ‘lab-to-life’ gap, Leiden University and the LUMC have, as coordinators of Academic Pharma, submitted an application to the National Growth…
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Natalia Ortiz awarded for the KNMP Student Prize
Natalia Ortiz, a current PhD student in our department, was awarded the KNMP Student Prize during the last autumn Congress 2014 of the Royal Dutch Pharmacists Association (Koninklijke Nederlandse Maatschappij ter bevordering der Pharmacie, KNMP), held in Utrecht at the beginning of October.
- Program in English
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Cancer pathogenesis and therapy
With cancer, a person’s body cells grow uncontrollably. Putting together a detailed picture of how this comes about makes it possible to develop efficient therapies. Researchers at the Leiden University Medical Centre (LUMC) and Leiden University are working together to gain a better understanding…
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Macrophages as drivers of an opportunistic infection
The opportunistic bacterium Burkholderia cenocepacia is feared by cystic fibrosis patients and is emerging in hospital-acquired infections. An international study sheds new light on the infection mechanism of this opportunistic pathogen that may have large implications for treatment strategies.
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Professor Ben Lugtenberg received ‘The Arima Award for Applied Microbiology’
Emeritus Professor Ben Lugtenberg received ‘The Arima Award for Applied Microbiology’ from the IUMS (International Union of Microbial Societies) for his life-time contributions to this field.
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“Principles of Plant-Microbe Interactions”
Emeritus Professor Ben Lugtenberg edited a book on “Principles of Plant-Microbe Interactions” together with Paul Hooykaas, Eddy van der Meijden and Jos Raaijmakers, all from the IBL.
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Nathaniel Martin new IBL professor in Bioorganic Chemistry
Nathaniel Martin has been appointed professor in the field of Bioorganic Chemistry within the Faculty of Science at the Institute of Biology Leiden, starting from 1 March 2018. His research focuses on using new (bio)chemical approaches to combat infectious disease, as well as on developing new molecular…
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Innovative Leiden research receives NWO grant
On January 24 Professor Annemarie Meijer and Dr Sander Wezenberg received a NWO grant for their research. The grant was awarded within the Open Competition Domaine Science-M programme and is intended for innovative research areas that can form the basis for the research themes of the future.
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Annemarie Meijer appointed full Professor of Immunobiology
Annemarie Meijer is appointed full Professor of Immunobiology. Meijer’s research focuses on immunobiology and infectious disease. She uses the zebrafish as a model for understanding mechanisms of host immune defense against intracellular bacterial pathogens.
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Expanding Social Sciences & Humanities in African Global Health Discourse
LUNHA strives to redefine global health by prioritizing justice, fairness, and inclusion in Africa. Through collaboration with diverse stakeholders, LUNHA aims to reshape global health research and foster a broader engagement with social sciences and humanities.
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Paco Barona Gomez ready to work in Leiden: ‘Fundamental research creates opportunities’
Paco Barona Gomez is the newest associate professor at the Institute of Biology Leiden (IBL). The Mexican researcher is fascinated by the evolution of natural products: compounds made by microbes, but also plants and animals. ‘It’s like we investigate chemical dark matter.’
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‘We shouldn’t lump all microorganisms together’
Hermelijn Smits is Professor of Host-commensal Interactions and Immune Modulation. In this role she is increasing our current understanding of the way in which microbes and parasites shape our immune system to protect us from respiratory infections and chronic inflammatory diseases. In her inaugural…
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Medical Delta professor Ariane Briegel: 'I love working with people from different backgrounds'
Multidrug-resistant pathogens and worldwide pandemics are increasing, making infectious diseases more prevalent. To develop new treatments, deeper knowledge of the interaction between bacteria and human cells is required. Ariane Briegel recently became a Medical Delta professor and studies such path…
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National Meat Free Week: the main reasons to switch to a plant-based diet
National Meat Free Week (Nationale Week Zonder Vlees, 7–13 March) is an initiative to reduce meat consumption. Assistant professor Paul Behrens is studying what impact a change in our food consumption would have on the world. What, according to him, are the main reasons to switch to a (mainly) plant-based…
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Researchers discover hitchhiking bacteria
Imagine that you need to travel, but you don’t have a car and you’re dead broke. What do you do? Hitchhiking, of course! Leiden biologists found that certain bacteria use this very same tactic: their spores hop on motile bacteria and use them as a taxi, ensuring they reach the right environment to f…
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A synthetic vaccine against meningococcus
Leiden chemists recreated the bacterial capsule of meningococcus in the lab. With a few modifications, these capsules can serve as an extra safe and effective vaccine against these notorious bacteria, which can cause, for example, meningitis. PhD candidate Jacopo Enotarpi and his team published the…
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A clear picture of bacteria
Freezing bacteria super fast to gain a true-to-nature image of the internal and external structure. Ariane Briegel Professor of Ultrastructural Biology came to Leiden specially to carry out this research. Leiden University is one of the few institutes in the world to have the necessary equipment. Inaugural…
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Four Leiden University researchers receive Rubicon Grants
Four Leiden researchers, who have recently obtained their PhDs, will receive a Rubicon Grant from NWO to conduct research abroad. A total of 22 scientists have received Rubicon Grants. This grant aims to provide young, promising scientists with international research experience.
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LUF grants for six Leiden psychologists
LUF grants for research projects have been awarded to Liesbeth van Vliet, Michiel Claessen, Anna van Duijvenvoorde, Laura Steenbergen, Kim de Jong and Franziska Richter. Each of these Leiden University scientists receive an amount between € 17.500 and € 25.000 to realise their scientific plans.
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New fundamental insight into the battle against bacteria
The intestinal bacterium E. coli can adapt to changes in its surroundings. Leiden scientists have discovered how the H-NS protein makes this possible. This new knowledge can be an important starting point in combatting bacteria and diseases such as peritonitis. Publication 2 October in the journal e…
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Wat is er te doen op de Leidse Museumnacht?
Op zaterdag 3 juni vindt de Museumnacht Leiden plaats. Ook dit jaar zijn Leidse wetenschappers en studenten onderdeel van de programmering.
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New insights into mycobacterial infections with NWO grant
Why are mycobacteria such successful pathogens? And are there defence mechanisms in the body that help reduce an infection? To find out, Annemarie Meijer has been awarded the NWO Open Competition ENW-XL grant. She will not explore this quest alone. Five other leading Dutch research groups are participating…
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New tenure track: understanding and engineering microbial metabolism for health and sustainability
On 1 March, Lennart Schada von Borzyskowski will start on a tenure track position at the Institute of Biology Leiden (IBL). With a focus on the natural and synthetic biochemistry of environmental bacteria, he wants to apply their features to health and sustainability issues.
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Pharmacologist Rob van Wijk is highlighted author of the month
Pharmacologist Rob van Wijk is the Highlighted Trainee Author in the October 2019 issue of the Journal of Pharmacology and Experimental Therapeutics. In his research, Van Wijk aims for a new paradigm by combining experimental work and computational data analysis.
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“You cannot predict the future, but you can think about it!” Master’s Vitality and Ageing visits Vilans!
As part of the career orientation of the Master’s Vitality and Ageing, students visit various healthcare, policy and research organisations throughout the year. Students get introduced to relevant organisations where they have the possibility for a graduation internship and career opportunities. This…
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Better insight into competition between microbes
It is mostly rainfall and soil acidity that determine which microbes survive in a particular habitat and which do not. This knowledge is important for maintaining biodiversity. Leiden environmentalists contributed to the research. Publication in Nature on 1 August.
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App helps doctors find the right dose of corona medication
Leiden researchers have developed an app that doctors can use to more easily determine the right dosage of medication for corona patients. At the moment, doctors are prescribing many existing kinds of medication to patients. Using the app, they can determine a safe and effective dosage.
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Antibiotica Scavenger Hunt
Speurtocht
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Leiden University Medical Center
In the Leiden University Medical Centre (LUMC) we strive to improve health care and the health of people.
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Is a cancer pill a matter of time?
A cancer pill, preferably without severe side effects, is something we’d all welcome. Is it a matter of time before such a pill is a reality? We put this question to three Leiden researchers and asked how they themselves are contributing to new cancer treatments.
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Next Generation Bacitracin
PhD defence
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Institute of Biology Leiden assessed as excellent
An external visitation committee gave the Institute of Biology Leiden (IBL) an outstanding assessment. In terms of research quality and relevance to society, the IBL gets the highest score: excellent. The increase with five new female professors also receives praise from the committee.
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How bittersweet sugar chemistry targets pathogens
The challenge is considerable, but so is the satisfaction when it succeeds: creating complex sugar molecules that play a role in biology.
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These are the seven Veni winners of the Faculty of Science
The Faculty of Science has received no less than seven Veni grants this year. Camila Correa, Max van Duijn, Stéphanie van der Pas, Sergii Pud, Mónica Varela Álvarez, Joseph Callingham, and Melissa McClure will receive a maximum of 250,000 euros to further develop their own research ideas over a three-year…
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Marieke Adriaanse appointed professor of Behavioral Interventions in Population Health Management
What determines healthy behavior and how do you promote healthy choices and routines? These are a few questions currently being addressed by Marieke Adriaanse, recently appointed Professor of Behavioral Intervention in Population Health Management at the Leiden University Medical Center (LUMC).
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The evolutionary added value of sex
Asexual procreation in female wasps leads to an accumulation of genetic mutations, and the shrivelling of their sex organ. Leiden biologist Ken Kraaijeveld published this discovery in Evolution. His research is one of the first experimental studies into the consequences of asexual procreation.
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Disrupted movement makes macrophages more lethal to tuberculosis bacteria
Macrophages – the front line of our immune system – protect us from infections. But in the case of the tuberculosis bacteria, this often goes wrong. The group of Annemarie Meijer from the Leiden Institute of Biology has now discovered that macrophages in zebrafish are better able to eliminate tuberculosis…
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Marnix Medema new visiting professor Van der Klaauw chair
The Institute of Biology Leiden has a new visiting professor as of the first of May. Bioinformatician Marnix Medema holds the Van der Klaauw chair for a year and looks forward to scientific collaborations and to boost the bioinformatics education.
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Quantum particles and bacteria without cell walls: KLEIN grant for Beenakker and Claessen
Are Weyl particles the ideal conductors? Do cells without a cell wall play a role in chronic Tuberculosis infections? Carlo Beenakker and Dennis Claessen want to answer these questions. They both received a KLEIN grant from the NWO. With these grants, NWO wants to stimulate innovative, fundamental r…
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Difference in microbiota between organic and conventional dairy farms
Bacteria and fungi on organic dairy farms are significantly different from those on conventional farms. That was discovered by postdoc researcher Sofia Gomes and her supervisors Nadia Soudzilovskaia and Peter van Bodegom in collaboration with the Louis Bolk Institute and Naturalis Biodiversity Centre.…
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Hypoxic Signalling and Tuberculosis
IBL-researcher Phil Elks in the group of Annemarie Meijer won the Cell Observatory Publication of the Year 2013. He received the award for his paper in PLoS Pathogens, showing that activation of hypoxia signaling protects against mycobacterial infection.
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Bacteria without cell wall gobble up DNA from environment
A bacterium hiding from the immune system and picking up bits of DNA from its environment. The result: gaining new traits, such as better protection against antibiotics. Fortunately, we have not found such a damning scenario yet. However, PhD student Renée Kapteijn did find the first clues, which…
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PhD candidate from Leiden presents international student event
From pipetting in the lab to shining in front of the camera at a global student event. With 8.000 viewers watching the livestream, Marjolein Crooijmans presented the iGEM Giant Jamboree in Paris.