Promotor: J.A. Bouwstra Co-promotor: A. El Ghalbzouri

Promotor: Prof.dr. J.A. Bouwstra, Co-promotor: A. El Ghalbzouri

The skin is our natural barrier and lipids are a key part of this barrier. In the outer skin layer, the stratum corneum (SC), lipids form a densely organized structure dependent on the composition of these lipids.

uman skin equivalents (HSEs) are in vitro 3D-skin models that mimic many aspects of the native human skin (NHS) and can be a valuable tool.

The research described in this thesis shows that hypercholesterolemia, a well-established risk factor for atherosclerosis, can impact skin lipid pool and barrier function already at young age. In the field of atherosclerosis, we showed that the small peptide Lyp-1 can be used as a targeting molecule…

The stratum corneum is the outermost skin layer and consists of dead cells embedded in a lipid matrix.

The lipids in the uppermost layer of the skin, the stratum corneum (SC), play an important role in the skin barrier function. The three main SC lipid classes are ceramides (CER), cholesterol and free fatty acids.

Barrier function is the natural role of the skin. The lipid matrix present in the outermost layer of the skin, the stratum corneum is important for this function.

Promotor: J. A. Bouwstra

Inflammatory skin diseases such as psoriasis and atopic dermatitis can severely impact both the physical and social aspect of a patient’s life. Aberrant inflammatory responses are thought to be a major causative factor in these disorders, but an abundance of different factors contribute to the development…

Promotie

In this thesis, we aim to shed light on the diverse and often opposing roles of integrin α3β1 in cancer.

Lezing

CT scanning of skeletal remains can tell us about how strong or weak a persons bones were and we can relate that back to diet, activity, and reproductive factors.

This thesis investigates a pharmacological challenge model induced by Toll-like receptor 7 (TLR7) activation, focusing on skin inflammation and its implications for early drug development.

Agglomeraties presteren minder goed dan steden met één bestuur. Dat blijkt uit onderzoek van Ton van Raan, professor kwantitatief wetenschapsonderzoek.

The lysosomal β-glucosidase named glucocerebrosidase (GCase) is a retaining β-glucosidase that hydrolyzes the glycosphingolipid glucosylceramide (GlcCer) to ceramide and glucose at acid pH.

The intradermal administration route is attractive for vaccine delivery, because of the highly populated antigen-presenting cells in the skin. However, the skin’s main physical barrier, the stratum corneum, prevents vaccines from entering the skin.

Dissolving microneedles are a subgroup of microneedle types that completely dissolve within the skin. During this dissolving process the vaccine, stored in the needle matrix, is released into the skin.

In vergelijking met andere landen zijn de barrières in Nederland om tot inzet van kroongetuigen te komen hoog. Dat concluderen Leidse rechtsgeleerden in het vandaag verschenen onderzoeksrapport ‘Collaboration with Justice in the Netherlands, Germany, Italy and Canada’. Het rapport geeft een unieke inkijk…

Het Liliane Fonds en het Afrika-Studiecentrum van de Universiteit Leiden hebben de Impact Challenge Award 2019 gewonnen voor het project 'Breaking down barriers to exclusion. Building capacity for lobby and advocacy for children with disabilities'. De Impact Challenge Award is een nationale onderscheiding…

Promotor: M. Danhof, Co-promotor: E.C.M. de Lange

Hans Ulrich Scherer is hoogleraar reumatologie, in het bijzonder translationele reumatologie. Met zijn leerstoel wil hij bruggen slaan tussen onderzoek en kliniek, maar ook tussen afdelingen en organisaties in binnen- en buitenland. Aanstaande vrijdag spreekt Scherer zijn oratie uit. 'Om vooruitgang…

Traditionally, vaccines are administered intramuscularly using conventional hypodermic needles, which cause pain and distress. Microneedles are very short needles (smaller than 1 mm) that are practically invisible to the naked eye.

Promotores: Prof.dr. J. A. Bouwstra, Prof.dr. W. Jiskoot

Our recent excavations have focused on the more recent New Kingdom/Late Period (ca. 1500-332 BCE) material.

Op dinsdag 17 maart promoveert Robert Rissmann van het LACDR. De titel van zijn proefschrift luidt

Promotor: G.A. van der Marel, Co-promotor: D.C. Codée

Carbonaceous asteroids preserve a record of early solar system processes, where minerals and organic molecules, like polycyclic aromatic hydrocarbons (PAHs), offer clues to planetary evolution and prebiotic chemistry.

This thesis describes the development and optimization of the first molecular tools to study the enzyme PLA2G4E.

Source: Structure , Volume 22, Issue 8, pp. 1120-1139 (2014)

Promotor: Prof.dr. B.R. Katzy, Prof.dr. H.J. van den Herik, Prof.dr. G.H. Baltes (University of Applied Sciences Konstanz)

Predictive maintenance (PdM) is a maintenance policy that uses the past, current, and prognosticated health condition of an asset to predict when timely maintenance should occur.

Heterogeneous catalyzed processes are highly significant to the chemical industry. Dissociative chemisorption (DC) of molecules on surfaces is always considered as a step with a high degree of rate control for heterogeneous catalysis.

Studying the impact of urbanisation on the respiratory health of past Dutch populations (1200-1850 CE).

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.

Studievoorlichting

Image segmentation is a fundamental task in computer vision, with applications ranging from medical diagnostics to archaeological research.

This thesis focuses on enhancing predictions of central nervous system drug exposure using the LeiCNS-PK3.0, a physiologically based pharmacokinetic model.

There is an urgent need for more physiologically relevant cell culture methods to guide compound selection in pre-clinical stages of the drug development pipeline.

Kunst en vrije tijd, Kunst en vrije tijd

The confinement of molecular catalysts in metal-organic frameworks has the potential to lead to significant improvements in selectivity, long term activity and catalyst stability.

Over the past years it has been discovered that the population of extra-solar planets is large and diverse.

Promotor: E. Gittenberger, Co-promotores: B.W. Hoeksema; L.P. van Ofwegen

Food security is challenged by a growing global population and by climate change. Drought and soil salinity are considered the most important ones that inhibit crop yield and distribution. Worryingly, climate change is predicted to increase not only their frequency and severity, but also their co-occurrence,…

Despite being the second largest transmembrane protein family after GPCRs, the SLC superfamily has only gained significant attention in early drug development over the past decade.