proefdieren dierproeven universiteit leiden geneesmiddelonderzoek geneesmiddelen

We aim to keep experiments on animal to a minimum. We therefore assess every study whether full account has been taken to implement the 3 Rs: replace, reduce, refine. The Animal Welfare Body advises researchers on this. By training our staff and provide further courses, we are able to continuously…

The rare Ethiopian wolf is increasingly coming into contact with local cattle farmers. PhD candidate Girma Eshete explored ways of saving this elegant animal from being wiped out. Phd-defense on 5 September.

Promotor: Prof.dr. H.P. Spaink Co-promotor: Dr. B.E. Snaar

Promotores: G.R. de Snoo, W.T. de Groot, Co-promotor: C.J.M. Musters

Promotor: J. van der Greef, T. Hankemeier; Co-promotor: H.A. van Wietmarschen

Can the pink-pigmented microbe Methylobacterium extorquens be genetically engineered to convert the sustainable raw material methanol into antibiotics?

Vaccines are an extraordinary category of biopharmaceuticals. They are usually prophylactic and come in many types, from whole bacteria to peptides and nucleic acids. They are very cost effective and almost every human on the planet is vaccinated. The latter mandates that vaccines have to be extremely…

Vera van Noort, professor in Computational Systems Biology at the KU Leuven (Belgium), is appointed holder of the rotating chair “Van der Klaauw Professor” for the year 2015-2016 at the Institute of Biology. Holders of the chair bring inspiring research and teaching in theoretical biology to the University.…

Lecture

Lecture

What are the biological effects of Chinese herbal medicine in regulation of cancer cell metastasis?

Lecture

Lecture

The goal of hit and lead optimization is to optimize suitable chemical starting points that can modulate a drug target. The methods and technologies used are similar to those in Hit Discovery, but once the compound has shown activity in an animal model, it moves from 'hit' to 'lead.'

Hybrid zones occur where two species meet and produce offspring (hybrids). Typically, hybrids show a considerable reduction in fitness. In this thesis two hybrid zones are treated.

From 1 October onwards, Dennis Claessen and Marcel Schaaf will be the new directors of education of Biology. They will replace Han de Winde. Schaaf will be responsible for the bachelor, while Claessen will mainly focus on the master tracks of Biology. We gave students and the education office the change…

Is it possible to synthesize industrially relevant compounds in a sustainable manner through the use of light-capturing cyanobacteria?

Lichens enthusiast Sander van Zon was eager to use his knowledge for his internship. He wrote an excellent thesis on lichens’ biodiversity in the city, of which his first scientific publication will appear soon. With it, he is nominated for the Leiden Science Young Talent Award 2022.

How does invasive hybridization affect threatened native species?

Lecture

Lecture

How can zebrafish research help understanding human diseases?

Three speakers, three fascinating science stories and a well-filled lecture hall. The Niko Tinbergen Lecture had a successful restart on 10 December 2019.

Short description about 20th anniversary of CEDC, the fieldstation in Cameroon, and 20 years of cooperation between Leiden University with the University of Dschang in Cameroon.

We are transparent concerning the animal testing that is conducted. With that responsibility comes openness regarding facts and numbers. On this page you will soon find an overview of different topics, including the amount and kind of animals used during experiments, the type of research executed and…

Lecture

Lecture

In this thesis, I study 1) metabolic alterations in tuberculosis related to wasting syndrome in human patients as well as in rodent and fish animal models. 2) effects of the mutation of the leptin gene on cachexia and diabetes in rodent and zebrafish animal models.

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.

On Monday 21 September Annemarie Meijer, Professor of Immunobiology, presented her inaugural lecture on immunobiology and infectious disease.

Explaining your PhD research to others can be quite difficult, especially without talking! PhD student Annebelle Kok of the Institute of Biology Leiden was one of the finalists of the 'Dance Your PhD' competition of scientific journal Science. ‘You have to understand your own research well if you are…

Lecture, Seminar

In the theme Drug research we generally work with rodents.

This project aims to develop advanced data analysis methods for monitoring and increasing our understanding on biodiversity dynamics in nature reserves such as the Oostvaardersplassen.

The Biology programme offers 4 research-oriented specialisations corresponding with the research themes within the three institutes involved. You can choose a more practical-oriented specialisation if you would like to combine Biology with education, management business, or science communication.

The IBL Education Office consists of:

Education in Environmental Biology

Research at the BIOSYN group is comprised of the following research themes:

Festival

Festival