Search for dissertations about: "DNA drug resistance"

Showing result 1 - 5 of 107 swedish dissertations containing the words DNA drug resistance.

  2. 1. Constraints on up-regulation of drug efflux in the evolution of ciprofloxacin resistance

    Author : Lisa Praski Alzrigat; Diarmaid Hughes; Fernando Baquero; Uppsala universitet; []
    Keywords : ciprofloxacin; antibiotic resistance; drug efflux; bacterial fitness; marR; acrR; marA; experimental evolution; Mikrobiologi; Microbiology;

    Abstract : The crucial role of antibiotics in modern medicine, in curing infections and enabling advanced medical procedures, is being threatened by the increasing frequency of resistant bacteria. Better understanding of the forces selecting resistance mutations could help develop strategies to optimize the use of antibiotics and slow the spread of resistance. READ MORE

  4. 2. Vaccination against drug-resistant HIV

    Author : Andreas Boberg; Karolinska Institutet; Karolinska Institutet; []
    Keywords : HIV; DNA vaccine; drug-resistance;

    Abstract : As the use of antiretroviral drug treatment increases worldwide, development of drug resistant HIV phenotypes is expected to increase. The frequency of drug- or multi-drug resistant virus transmitted in primary infections will consequently be more abundant. Logical vaccine targets in drug-resistant strains are reverse transcriptase and protease. READ MORE

  5. 3. O6-methylguanine-DNA-methyltransferase and DNA mismatch repair in relation to drug resistance in malignant melanoma

    Author : Shuhua Ma; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Melanoma; chemotherapy; dacarbazine; drug resistance; O6-methylguanineDNAmethyltransferase; DNA mismatch repair;

    Abstract : Although the survival rate of patients with malignant melanoma has improved, treatment of the disease poses large problems since disseminated melanoma frequently shows primary resistance to chemotherapy. Resistance to chemotherapy is thus a major clinical problem and a cause of failure in the treatment of metastatic malignant melanoma. READ MORE

  6. 4. Biased Evolution : Causes and Consequences

    Author : Gerrit Brandis; Diarmaid Hughes; Erik Böttger; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Evolution; Codon usage bias; Post-transcriptional regulation; Recombination; Inversion; EF-Tu; Frameshift suppression; Antibiotic resistance; Rifampicin; Ciprofloxacin; Compensatory evolution; Drug efflux; RNA polymerase; DNA gyrase; Mikrobiologi; Microbiology;

    Abstract : In evolution alternative genetic trajectories can potentially lead to similar phenotypic outcomes. However, certain trajectories are preferred over others. These preferences bias the genomes of living organisms and the underlying processes can be observed in ongoing evolution. READ MORE

  7. 5. True Monoliths as Separation Media : Homogeneous Gels for Electrophoresis and Electrochromatography in the Capillary and Microchip Modes

    Author : Ákos Végvári; Douglas Westerlund; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; capillary electrophoresis; capillary electrochromatography; gel electrophoresis; agarose; polyacrylamide; b-cyclodextrin; DNA; peptide; glutathione; drug enantiomers; microchip; Biokemi; Biochemistry; Biokemi; biokemi; Biochemistry;

    Abstract : The thesis focuses on the development of new homogeneous gels for the separation of drug enantiomers, peptides, DNA and virus by electrophoresis and electrochromatography in capillaries and microchips. This type of separation media offers high resolution and small zone broadening. READ MORE