951 search results for “bacterial stress” in the Public website
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Ecological functioning of bacterial chitinases in soil
Promotores: Prof.dr. H. van Veen & Prof.dr. W. de Boer (Wageningen University)
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Bacterial Chromatin
The relative simplicity of the bacterial cell, short generation times and well defined and inexpensive culturing conditions have significantly contributed to our understanding of many complex biological systems. Yet the workings of the bacterial genome, seemingly impossibly compressed within a tiny…
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Marjolein Crooijmans
Science
m.e.crooijmans@biology.leidenuniv.nl | +31 71 527 5075
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Growth-induced self-organization in bacterial colonies
Mechanical forces are known to play an important role in bacterial colonies. In this dissertation, we study the self-organization at various stages of growing bacterial colonies, and focus on the mechanical effects of cell growth.
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Bacterial Chromatin: Methods and Protocols
Authoritative and cutting-edge, Bacterial Chromatin: Methods and Protocols aims to be useful as an up-to-date reference work for scholars in the bacterial chromatin field, those entering the field from adjacent research fields, and scientists in the eukaryotic chromatin field.
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Bacterial glycomimetics: synthesis and applications
This work has described synthetic strategies towards well-defined structures resembling capsular polysaccharide (CPS) fragments, CPS mimics, teichoic acid (TA) fragments as well as a third-generation ring-closing tandem metathesis (RCM) linker to better exploit the potential of automated synthesis.
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Dynamic organization of bacterial chromatin by DNA bridging proteins
Bacteria often experience external challenges, such as changes in environmental conditions or attacks by bacteriophages.
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Small-molecule inhibitors of bacterial metallo-β-lactamases
The main focus of the thesis is the discovery and development of novel inhibitors of bacterial metallo-β-lactamases (MBLs).
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Topic: Stress and stress-related disorders
The precise psychobiological mechanisms leading to chronic physiological stress responses have not been sufficiently explained, although stress is a major risk factor for disease and early death. A problem for conventional stress theory is that most of these responses seem to occur in situations without…
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Microbial Induction of Plant Resilience to Drought Stress (MicroRes)
What are the genes and molecular mechanisms involved in bacteria-mediated plant drought tolerance?
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Cryo Electron Tomography Studies On Bacterial Chemosensory Arrays
Bacterial chemosensory arrays are protein assemblies that are the key structural and functional component for motile bacteria to sense their internal or environmental chemical signals.
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Regulation of autophagy-related mechanisms during bacterial infection
Autophagy is a fundamental degradative process, maintaining cellular homeostasis and functions in host defense against intracellular pathogens, including mycobacteria and Salmonella.
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Assemblage and functioning of bacterial communities in soil and rhizosphere
Promotores: J.A.van Veen, P.L.G.Klinkhamer. Co-promotor: E.E.Kuramae
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Stress, hormones and emotion regulation
What is the role of stress and stress-related hormones in emotion regulation?
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Psychophysiological responses to stress and stress management
The major aim is to determine the psychophysiological responses to stress and stress-management interventions and to examine the role of stress and stress-related psychophysiological mechanisms (e.g., cognitions, behaviors, and physiological stress responses) in both healthy and medical populations.
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Knowledge centre Anxiety & Stress in Youth
Our mission is to recognise and treat stress and anxiety in children as early as possible, by connecting scientific research, clinical practice and education.
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Witnessing the Process of Bacterial Cell Death: Novel Antimicrobials and Their Mechanisms of Action
This thesis describes the antimicrobial discovery strategy developed in our group, the den Hertog Group at the Hubrecht Institute. It includes a cultivation-based screening approach for novel antimicrobial agents from the source of fungi, and a bacterial time-lapse imaging approach for antimicrobial…
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Stress Lessons in secondary education: The effectiveness and evaluation of a school-based psychoeducation program about stress
Does a universal psychoeducational course about stress in adolescents: I) lead to an increase in knowledge of stress?, II) affect the frequency with which stressors are experienced and the overall stress level?, III) create interest in a tier 2 level follow-up training?, and IV) appeal to students in…
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Stress or study delay?
Being a student can be stressful. Study pressure, living on your own, moving country, financial stress: things can be difficult. Unexpected difficulties may lead to study delay.
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Structural characterization of bacterial proteins involved in antibiotic resistance and peptidoglycan biosynthesis
This thesis describes the structural and biochemical characterization of the β-lactamase BlaC from Mycobacterium tuberculosis (Mtb), and the Alr and YlmE proteins from Streptomyces coelicolor A3(2).Mtb is the main cause of tuberculosis.
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The rhizomicrobiome of Sorghum ; impact on plant growth and stress tolerance
The overall objectives of my thesis are to investigate the dynamics of the sorghum root microbiome and to explore the beneficial effects of the root microbiome on sorghum growth and stress tolerance.
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LIBC Stress & Emotion
All living creatures have to cope with environmental demands and threats that challenge their physical or emotional homeostasis.
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Reducing daily-stress breaking a habit
With this thesis the PhD-candidate aims to enrich the body of evidence concerning the relation between stress and health, and the mediating role of (un)conscious perseverative cognitions, which is captured in the extended perseverative cognition hypothesis.
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Unfolding the regulation of stress response pathways upon liver injury
Drug-induced liver injury (DILI) is one of the main reasons for drug attrition during pre-clinical and clinical phases of drug development as well as for drug withdrawal post-marketing.
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Endocannabinoids in health and stress
How does the endocannabinoid system in the zebrafish function at the molecular and phenotypic levels and how is it linked to the stress axis?
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Stress Less Project: Effectiveness of school-based intervention programs
What is the effectiveness of two school-based skills-training programs in promoting mental health?
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OPENup: Optimizing exposure therapy for Posttraumatic Stress disorder
Although exposure therapy is the gold-standard treatment of posttraumatic stress-disorder (PTSD), only half of the patients adequately benefit from it. Based on recent insights into the mechanisms of extinction, this project examines strategies and techniques to improve exposure treatment outcome in…
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Involvement of host and bacterial factors in Agrobacterium-mediated transformation
Agrobacterium tumefaciens, a gram-negative plant pathogen belonging to the family Rhizobiaceae, is the causative agent of crown gall disease, which can affect many plant species including agronomically important ones.
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Synthesis of phosphodiester-containing bacterial cell wall components: teichoic acids, capsular polysaccharides and phosphatidyl glycerol analogues
Promotor: G.A. van der Marel, Co-promotor: J.D.C. Codée
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Role of epigenetics in long-term health effects of early life stress
Can epigenetic changes explain associations between early life stress and health outcomes?
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Early recognition and intervention of stress and anxiety in the classroom
How can we facilitate the early recognition of stress and anxiety in the classroom and collaborate with schools in providing low-threshold interventions?
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Stress-related prolonged cardiovascular activity: The impact and changeability of stressful cognition without awareness
The research question is that unconscious perseverative cognition (UPC) is responsible for a considerable part of cardiovascular (CV) activity that occurs even in the absence of threats and other stressors that one may encounter in one’s daily life.
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Systems microscopy to unravel cellular stress response signalling in drug induced liver injury
Promotor: B. van de Water
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Stress-induced modulation of the innate immune system in cardiovascular disease
Promotor: Prof.dr. J. Kuiper
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The effects of stress and fear on nocebo hyperalgesia
What role play stress and fear in forming of nocebo hyperalgesia?
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Choice-related stress and uncertainty
What are the behavioral, cognitive, and motivational consequences of decision reversibility?
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Jos Brosschot
Faculteit der Sociale Wetenschappen
brosschot@fsw.leidenuniv.nl | +31 71 527 3740
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Zebrafish personality, stress physiology and behaviour in the context of sound exposure
To what extent is sound a stressor to fish? And are behavioural and physiological phenotypes equally sensitive to disturbance by noise pollution?
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Jin Yan
Faculteit der Sociale Wetenschappen
j.yan@fsw.leidenuniv.nl | +31 71 527 2727
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Evolution of bacterial movement revealed
An international team with researchers from Leiden revealed how a bacterium repurposed an internal system to control its movements. Movement control is very important in host invasion, which can lead to disease. Publication on 27 April in Nature Communications.
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The early stress response of jasmonic acid in cell suspension cultures of Catharanthus roseus
In order to gain a better insight into the basis of the rapid jasmonic acid (JA)-mediated stress response, an integrated approach using a targeted high-resolution mass spectrometry-based (HRMS) platform, was conducted to monitor the metabolism of JA using the model system of cell suspension cultures…
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The 3Generation study: Stress and Emotions in a Family Context
What is the role of neuronal emotional reactivity in the intergenerational transmission of abuse?
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Mapping of bacterial genomes to combat infectious diseases
Mapping of bacterial genomes to combat infectious diseases
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that never happen: Genaralized unsafety and prolonged psysiological stress responses
The aims of the project are to: further clarify 'inhibition by safety'; explore and describe all possible sagety factors, with a special focus on the primary human safety source: social connectedness; reviewing prolonged stress responses without stressors.
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Mathematical modeling of cellular stress pathways for mechanistic understanding of chemical-induced liver injury
Cellular stress response pathways are activated upon exposure to chemicals and help organisms deal with various molecular dangers (e.g. oxidative stress). When these pathways become hyper-activated an adverse response takes place and cells die, which may lead to organism-level toxicity such as drug-induced…
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inhibit human osteosarcoma cell growth after activation with the bacterial cell wall derivative liposomal muramyl tripeptide in combination with
CONCLUSION: This study demonstrates that human macrophages can be induced to exert direct anti-tumor activity against osteosarcoma cells. Our observation that the induction of macrophage anti-tumor activity by L-MTP-PE required IFN-gamma may be of relevance for the optimization of L-MTP-PE therapy in…
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The neurobiology of depression and the relation between stress, mental health, ageing and chronic illness
I want to understand the overlap between physical health, mental health, and healthy aging and whether/how stress (behaviorally and biologically) may tie these concepts together.
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Monitoring drought and salinity stress in agriculture by remote sensing for a sustainable future
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,…
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High throughput microscopy for cellular adaptive stress response pathways in drug adversity
High throughput microscopy
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Dynamics and regulation of the oxidative stress response upon chemical exposure
The focus of the described research in this thesis is on the oxidative stress response (Nrf2 pathway). The aim of the research presented in this thesis is to obtain more information concerning microRNAs which are involved in the Nrf2 pathway, to determine and evaluate the application of microRNAs for…