Sökning: "Listeria monocytogenes"

Visar resultat 11 - 15 av 24 avhandlingar innehållade orden Listeria monocytogenes.

  1. 11. PCR-based detection of microorganisms in complex biological samples

    Författare :Pär-G Lantz; Teknisk mikrobiologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Density gradient centrifugation; DNA extraction; Aqueous two-phase systems; Meat; Faeces; Cheese; Yeast; Helicobacter pylori; Yersinia enterocolitica; Listeria monocytogenes; PCR; Inhibition; Sample preparation; Microbiology; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

    Sammanfattning : The detection of microorganisms by PCR can be divided into four steps: (1) sample collection, (2) sample preparation, (3) DNA amplification and (4) detection of PCR products. The major problem in developing PCR-based detection methods is the sample preparation step. LÄS MER

  3. 12. Dissection of immunity controlling spread and growth of Listeria monocytogenes in neuronal cells

    Författare :Yuxuan Jin; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :L. monocytogenes; nervous system; neuroinvasion; IFN-ã; CSF-1; neuron; NK cells; T cells; MHC;

    Sammanfattning : Listeria monocytogenes is a Grain-positive, facultative intracellular bacterium that causes severe infections in the nervous system of domestic animals and humans. Rhombencephalitis (brainstem encephalitis) due to L. monocytogenes, is a localized brainstem infection that is frequent in ruminants, and has been reported in humans as well. LÄS MER

  4. 13. Human listeriosis : Grouping of human Listeria monocytogenes isolates with PFGE and AscI restriction enzyme

    Författare :Gloria Lopez Valladares; Wilhelm Tham; Marie-Louise Danielsson Tham; Hannu Korkeala; Miia Lindström; Carl Påhlson; Finland Helsinki University of Helsinki Faculty of Veterinary Medicine; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Medicine; Medicin;

    Sammanfattning : .... LÄS MER

  5. 14. Validation of mild cooking processes with target of Listeria monocytogenes inactivation to ensure food safety

    Författare :Sonja Karin Grönqvist; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis investigates the use of Time Temperature Integrators (TTIs) to validate industrial cooking processes aimed to achieve a 6 logarithmic inactivation of Listeria monocytogenes, equal to a heat load of 2 min at 70 °C (P707.5 = 2) . To produce microbiological TTIs, live cells of L. monocytogenes were crossbound in alginate beads. LÄS MER

  7. 15. Host control of intracellular bacterial infections

    Författare :Emma Eriksson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Listeria monocytogenes; CD44; flagellin; Chlamydia pneumoniae; TLR; NOD; IFNalpha beta; IFN-gamma;

    Sammanfattning : In this thesis various immune mechanisms regulating control of infections with the intracellular bacteria Listeria monocytogenes and Chlamydia pneumoniae have been studied. These bacteria infect macrophages in which they can successfully grow. However, macrophages are potent killers of intracellular bacteria. LÄS MER