Sökning: "toxikologi mikrobiologi"

Visar resultat 6 - 10 av 88 avhandlingar innehållade orden toxikologi mikrobiologi.

  1. 6. The role of sediments in nitrogen cycling in the larger Baltic Sea

    Författare :Anne Stockenberg; Lars Peter Nielsen; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microbiology; Mikrobiologi; mikrobiologi; Microbiology;

    Sammanfattning : The eutrophication of coastal areas has become a widespread problem over the last decades. In the Baltic Sea, the input of nitrogen and phosphorus has increased by four and eight times, respectively, since the turn of the century, and this is considered the direct cause of the eutrophication of this ecosystem. LÄS MER

  3. 7. Virulence Factors and Motility Mechanisms of Pathogenic Neisseria

    Författare :Jens Eriksson; Ann-Beth Jonsson; Helena Aro; Tone Tønjum; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Neisseria; Virulence factors; Type IV pili; PilT; PilU; NafA; NhhA; Twitching motility; molekylärgenetik; Molecular Genetics;

    Sammanfattning : Neisseria gonorrhoeae and Neisseria meningitidis are two closely related human specific pathogens. Neisseria gonorrhoeae is the causative agent for the sexually transmitted disease gonorrhea and often causes asymptomatic infections in women which is a cause of infertility. LÄS MER

  4. 8. Cellular effects after exposure to mixed beams of ionizing radiation

    Författare :Elina Staaf; Andrzej Wojcik; Siamak Haghdoost; Eva Forssell-Aronsson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Ionizing radiation; high LET; low LET; mixed beams; combined exposure; molekylärgenetik; Molecular Genetics;

    Sammanfattning : Mixed beams of ionizing radiation in our environment originate from space, the bedrock and our own houses. Radiotherapy patients treated with boron neutron capture therapy or with high energy photons are also exposed to mixed beams of gamma radiation and neutrons. LÄS MER

  5. 9. Neisseria gonorrhoeae and Lactobacillus from initial adherence to effects on human cells

    Författare :Katarina Vielfort; Helena Aro; Bernt Eric Uhlin; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Neisseria gonorrhoeae; Lactobacillus; adhesion; cell cycle; DNA damage; Neutrophils; molekylärgenetik; Molecular Genetics;

    Sammanfattning : The causative agent of gonorrhoea Neisseria gonorrhoeae (gonococcus) colonises the urogenital tract epithelia. The vaginal tract microbiota of healthy females is dominated by Lactobacillus species. In paper I, the ability of lactobacilli to protect cervical cells against gonococcal adherence was investigated. LÄS MER

  7. 10. Formation and metabolism of the tryptophan-derived 6-formylindolo[3,2-b]carbazole - a light-induced Ah-receptor ligand

    Författare :Linda Bergander; Ulf Rannug; Agneta Rannug; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Toxicology; Toxikologi;

    Sammanfattning : The aryl hydrocarbon receptor (AhR) is a ligand dependent transcription factor ubiquitously expressed in mammalian cells. It is a genetically ancient protein mostly known for binding the extremely toxic contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). LÄS MER