Search for dissertations about: "B-lactam"

Found 4 swedish dissertations containing the word B-lactam.

  1. 1. Antibiotic Resistance in Wastewater Methicillin-resistant Staphylococcus aureus (MRSA)and antibiotic resistance genes

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Stefan Börjesson; Linköpings universitet.; Linköpings universitet.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MRSA; SCCmec; spa typing; Staphylococcus aureus; methicillin; B-lactam; aminoglycoside; tetracycline; antibiotic; wastewater; wastewater treatment plant; NATURAL SCIENCES Biology Organism biology Microbiology; NATURVETENSKAP Biologi Organismbiologi Mikrobiologi;

    Abstract : A large part of the antibiotics consumed ends up in wastewater, and in the wastewater the antibiotics may exert selective pressure for or maintain resistance among microorganisms. Antibiotic resistant bacteria and genes encoding antibiotic resistance are commonly detected in wastewater, often at higher rates and concentrations compared to surface water. READ MORE

  2. 2. b-Lactam and metronidazole resistance in the Bacteroides fragilis group

    University dissertation from Stockholm : Karolinska Institutet, Department of Immunology, Microbiology, Pathology and Infectious Diseases

    Author : Hong Fang; Karolinska Institutet.; Karolinska Institutet.; [2001]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bacteroides fragilis group; beta-lactam; metronidazole; resistance; beta-lactamase; penicillinbinding proteins PBPs ; outer membrane proteins OMPs ;

    Abstract : The Bacteroides fragilis group organisms are anaerobic gram-negative bacilli. Ten species are currently included in this group. Members of the B. fragilis group are the major constituents of the normal colonic microflora and the most commonly encountered anaerobic bacteria in clinical specimens. READ MORE

  3. 3. Biological and Pharmacological Factor that Influence the Selection of Antibiotic Resistance

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Ingegerd Gustafsson; Uppsala universitet.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Microbiology; Human microflora; antibiotic resistance; selection; mutation frequency; biological fitness; pharmacokinetics; pharmacodynamics; β-lactam antibiotics; suboptimal dosing regimen; Mikrobiologi; NATURAL SCIENCES Biology Organism biology Microbiology; NATURVETENSKAP Biologi Organismbiologi Mikrobiologi; Klinisk bakteriologi; Clinical Bacteriology;

    Abstract : Antibiotic treatment causes an ecological disturbance on the human microflora. Four commensal bacteria: E. coli, enterococci, a-streptococci and coagulase-negative staphylococci, from patients with extensive, high antibiotic usage were investigated with regard to resistance pattern and mutation frequency. READ MORE

  4. 4. Ecological disturbances and emergence of resistance in the oral and gastrointestinal microflora after drug exposure

    University dissertation from Stockholm : Karolinska Institutet, false

    Author : Christina Stark; Karolinska Institutet.; Karolinska Institutet.; [1996]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ecology antimicrobial resistance oral gastrointestinal microflora B-lactamase enzyme induction.;

    Abstract : Ecological disturbances and emergence of resistance in the oral and gastrointestinal microflora after drug exposure Christina Stark, Division of Oral Microbiology, Department of Immunology, Microbiology, Pathology and Infectious Diseases, Huddinge University Hospital, Karolinska Institute, Stockholm, SwedenThe exposure of antimicrobial agents and antacids may disturb the ecological balance ofthe normal microflora. This influence often leads to decreased colonization resistance dueto repression of sensitive bacteria and selection of resistant bacteria which have acquiredresistance during therapy. READ MORE