The power of personalized nutrition lies in being able to conduct clinical research on healthy people while capturing metabolic markers sensitive to the impact of environmental and metabolic stressors (e.g. diet, changing sex hormones and the menstrual cycle).

What is the role of stress and stress-related hormones in emotion regulation?

This study is the first to directly relate brain development to sex differences and school performance. The results debunk the myth that brain development is slower in boys.

Combined hormonal contraceptives (CHC) are associated with an increased risk of venous thromboembolism (VTE). In 2013, a review was published by the European Medicines Agency (EMA). In this review, the authors concluded that the risk of VTE varies by the type of progesterone in the CHC. Subsequently,…

Plants are colonized by an astounding number of microorganisms that can provide different life-support functions, including nutrient acquisition and protection against (a)biotic stresses like drought or pathogen attack.

‘Visibility and secrecy are both valuable tactics and should not be antagonized in LGBT movements, ’ says Jingshu Zhu. Zhu defended her dissertation on Wednesday 21 February.

The soil ecosystem consists of the largest reservoir of biodiversity on Earth.

Growth hormone profiles are pulsatile and highly variable between individuals, limiting the implementation of mathemathical models to quantify an individual's secretion.

Regulating Relations: Controlling Sex and Marriage

It often takes longer for women with heart problems to get the right diagnosis. In her Annie Romein-Verschoor Lecture, Professor Hester den Ruijter will talk about how hormones influence the heart and the importance of medical research that focuses specifically on women.

Vicencio Oostra, who defended his PhD-thesis at the IBL successfully in June 2013, published new insights into the hormonal regulation of butterfly responses to fluctuating environments.

Promotor: P.M. Brakefield

Filamentous Actinobacteria, such as Streptomyces, produce a plethora of chemically diverse bioactive metabolites that have found applications across medicine, agriculture and biotechnology.

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.

From the effects of hormone fluctuations in women via the interior structure of giant planets to the prehistory of the languages: six Leiden researchers have been awarded a Consolidator Grant by the European Research Council.

Do young people who want to change gender have the unconditional right to medical treatment? Pediatric Endocrinologist Martine de Vries, who is also Professor of Medical Ethics, treats transgender children and adolescents. She will discuss this in her ‘Pride Talk’ on 18 September.

Leiden and Austrian researchers have succeeded in further uncovering how a plant cell passes on the growth hormone auxin in a directional manner to the next cell. Three proteins that cling together in a bunch appear to be essential for this important transport process. ‘This discovery solves a crucial…

In this research line, the role pharmacological agents and neurochemcial processes play in behavior and cognition is examined with a particular focus on pain, placebo and nocebo effects and intensive care treatments.

The trend of legal recognition for gay and lesbian couples is broadening. More and more rights are becoming available to same-sex partners – in more and more European countries. Leiden Law School and the French Institute for Demographic Studies publish detailed database and comparative analysis.

‘Everyone’s talking about it, everyone thinks everyone else is doing it, but the reality is disappointing,’ says biochemist Gerard van Westen in his 3 October University lecture in the Van der Werfpark. In the full marquee, he gets a laugh with this suggestion that artificial intelligence is comparable…

In July 2019 Asser Press published the book 'Sweetie 2.0—Using Artificial Intelligence to Fight Webcam Child Sex Tourism’ which was coedited by Simone van der Hof en Bart Schermer from the Center for Law and Digital Technologies, Bert-Jaap Koops from the Tilburg Institute for Law, Technology, and Society…

Researchers, policymakers and funders have to take more account of the effect of sex and gender in scientific research. This is the view presented in an advice paper published by LERU, the League of European Research Universities. The lead author is Vice-Rector Simone Buitendijk.

Sweetie 2.0 is a research project commissioned by Terre des Hommes on online child sex tourism and criminal law.

An important hormone excreting gland in the human body is the pituitary

How does it feel to be spied on by robots? Did you know that they too discriminate? Our entanglement with technology makes life easier, but there’s a downside too. Artists and researchers will show all aspects of this in the SAILS online talk show The Future of AI is Human. Join in on Tuesday 15 December…

Leiden University has appointed John van Noort as Professor in Biophysics. He studies the way in which our DNA is folded and read out.

John van Noort

PhD defence

Although sexual abstinence before marriage is no longer the central message in The Netherlands the affective relationship as a criterion for professionals within criminal justice can be seen as a more contemporary version of marriage.

Is it possible to pharmacologically condition oxytocin responses in healthy individuals and identify the neural circuitry underlying such conditioning?

Salicylic acid (SA) is a plant hormone, which is involved in the defense responses to pathogens and to abiotic stress, and in the regulation of plant growth and development.

Oxidation is a common degradation pathway that affects therapeutic proteins and peptides during production, purification, formulation, transportation, storage and handling of solid and liquid preparations. In the present work we review the scientific literature about structural and biological consequences…

The programme of the 3rd International Workshop on Klinefelter Syndrome, Trisomy X, and XYY. International Workshop theme: 'A life-course perspective'

YAL now has its own lecture series! In collaboration with Studium Generale, we organise ‘Young Academy Leiden lectures'.

In Shimmering Images, Eliza Steinbock traces how cinema offers alternative ways to understand gender transitions through a specific aesthetics of change.

Undesirable associations with sex can be unlearned, but return if the circumstances change. They must therefore be unlearned in different situations. The drug D-cycloserine may help here. These are the findings of psychologist Mirte Brom.

The plant hormone auxin plays a central role in the growth and development of plants. Auxin acts in a concentration dependent manner and polar cell-to-cell transport of this hormone determines its distribution in the tissues of plants. This polar auxin transport is mediated by several families of auxin…

Supervisor: Indira Nederpelt

As a contribution to the changing legislation and evolving societal attitudes concerning environmental issues, this project aims to enhance and manipulate the plants’ own natural defense mechanisms against western flower thrips (WFT).

How do common marmosets combine their calls into sequences and how are their vocalisations influenced by reproductive state?