Sökning: "gram negative bacteria"

Visar resultat 41 - 45 av 236 avhandlingar innehållade orden gram negative bacteria.

  1. 41. Every bug counts : neonatal colonization and infection of Gram-negative bacilli : aspects on antibiotic resistance in Sweden and Ecuador

    Författare :Viveka Nordberg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Neonatal infections caused by extended-spectrum beta-lactamase (ESBL)-producing Gramnegative bacilli are associated with high morbidity and mortality. In order to perform targeted preventive interventions against the impacts of antibiotic resistance in neonates, it is crucial to study colonization, infection and the spread of EPE-bacteria. LÄS MER

  3. 42. Ecological aspects of antimicrobial susceptibility of anaerobic bacteria in Nicaragua

    Författare :Mercedes Cáceres; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Antimicrobial susceptibility; normal flora; anaerobic infections; B-lactamase; enterotoxigenic B. fragilis;

    Sammanfattning : Anaerobic bacteria are the predominant constituents of the normal flora on the skin and the mucous membranes of the human body. They may also act as potent pathogens in a variety of endogenous infections. Antimicrobial resistance is an increasing problem with anaerobic and aerobic bacteria. Different mechanisms for such resistance are known. LÄS MER

  4. 43. Evaluation of microbial health risks associated with the reuse of source-separated humna urine

    Författare :Caroline Höglund; KTH; []
    Nyckelord :urine-separation; urine; wastewater systems; wastewater reuse; recycling; enteric pathogens; faecal sterols; indicator bacteria; hygiene risks; microbial persistence; microbial risk assessment; QMRA; fertiliser; crop;

    Sammanfattning : Human excreta contain plant nutrients and have the potentialto be used as a fertiliser in agriculture. Urine contributesthe major proportion of the nutrients (N, P and K) in domesticwastewater whereas faeces contribute a smaller amount andinvolves greater health risks if reused due to the possiblepresence of enteric pathogens. LÄS MER

  5. 44. Soil salinity as a driver of microbial community structure and functioning

    Författare :Kristin Rath; MEMEG; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Soil salinization; Soil Microbiology; soil microbial community; Bacteria; Aerobic; Fungi; Drying-rewetting; Microbial growth; Microbial biomass; Soil respiration; salinity tolerance; Saline soils; Salinity gradient;

    Sammanfattning : Soil salinization is a pressing agricultural problem in many areas of the world, particularly in areas heavily reliant on irrigation agriculture. While the negative effects of salinity on crop plants have been widely studied, its effects on soil microorganisms have received less attention, and the impact of soil salinity on both microbial community structure and functioning is not well understood. LÄS MER

  7. 45. Role of extracellular ATP in immune mechanisms against infections

    Författare :Lalitha Tadala; Andrea Puhar; Sara I Wilson; Bernt Eric Uhlin; Mikael Sellin; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Extracellular ATP; invasive bacteria; Shigella; Listeria; plasma membrane ruffle; PIEZO1; infection; immune response; Hanta virus; molekylär cellbiologi; molecular cell biology;

    Sammanfattning : Inflammation is driven either by infection with pathogens or sterile stimuli, such as tissue damage or autoimmune diseases. Upon tissue damage, ATP is released passively from the dead or compromised cells. During stress, ATP can be secreted from the cells. Extracellular ATP (eATP) acts as an endogenous danger signal. LÄS MER