Search for dissertations about: "host defence"

Showing result 1 - 5 of 114 swedish dissertations containing the words host defence.

  1. 1. Ecology and evolution in a host-parasitoid system Host search, immune responses and parasitoid virulence

    University dissertation from Stockholm : Department of Ecology, Environment and Plant Sciences, Stockholm University

    Author : Lisa Fors; Stockholms universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Host-parasitoid interactions; Plant-herbivore interactions; Host search; Volatiles; Pheromones; Geographic variation; Cellular defence; Melanisation; Encapsulation; Asecodes; Galerucella; Plant Ecology; växtekologi;

    Abstract : In host-parasitoid systems, there is a continuous coevolutionary arms race where each species imposes a strong selection pressure on the other. The host needs to develop defence strategies in order to escape parasitism and the parasitoid must evolve counter-defence strategies in order to overcome the host’s immune defence and successfully reproduce. READ MORE

  2. 2. Functional dualism of antimicrobial host defence peptides

    University dissertation from Stockholm : Department of Ecology, Environment and Plant Sciences, Stockholm University

    Author : Åse Björstad; Göteborgs universitet.; Gothenburg University.; [2009]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; antimicrobial; apoptosis; cathelicidin; host defence peptide; interleukin 8; LL-37; permeabilisation;

    Abstract : Antimicrobial host defence peptides are central to innate immunity and many possess direct antimicrobial actions on bacteria as well as indirect immunomodulatory functions on human leukocytes. Different variants of the bifunctional Helicobacter pylori peptide, Hp(2-20), were synthesised and inhibition zone assays and chemiluminescence systems were employed for determination of direct antimicrobial action and superoxide release (immunomodulatory) from human neutrophils, respectively. READ MORE

  3. 3. Midkine - a host defence protein

    University dissertation from Respiratory Medicine and Allergology, Lund University

    Author : Sara Nordin; Lund University.; Lunds universitet.; [2013]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Antimicrobial polypeptides; Midkine; antibacterial; antifungal; innate immunity; epithelial surfaces;

    Abstract : Every day we encounter many potentially harmful microbes in our environment. The epithelial linings constitute an anatomical barrier protecting us and they also produce antimicrobial polypeptides (AMPs) that act as a chemical barrier. These AMPs are small and positively charged, killing a broad range of microbes rapidly. READ MORE

  4. 4. Novel Aspects of the Coagulation System in Host Defence

    University dissertation from Lund University

    Author : Praveen Papareddy; Lund University.; Lunds universitet.; [2012]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Host defence peptides; Coagulation system; Sepsis; Thrombin; TFPI-1; TFPI-2; HCII;

    Abstract : Bacterial infections are a major global threat to public health and sepsis is a major cause of morbidity and mortality. Sepsis incidence is rising, with supportive treatments and antibiotics being the main treatment possibilities. READ MORE

  5. 5. Drosophila-Serratia as a host-parasite system : defence mechanisms and virulence factors

    University dissertation from Stockholm : Univ

    Author : Casper Flyg; Stockholms universitet.; [1986]
    Keywords : ;

    Abstract : .... READ MORE