Search for dissertations about: "photoproducts"
Showing result 1 - 5 of 14 swedish dissertations containing the word photoproducts.
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1. Tryptophan photoproducts : regulation of CYP1A1 transcription and modulation of cell growth
Abstract : The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor involved in the regulation of many drug-metabolizing enzymes. The regulation of cytochrome P4501A1 (CYP1A1) has been most intensively studied. READ MORE
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2. Temperature effects on UV-B induced DNA damage and repair in plants and a lichen
Abstract : All living organisms have DNA and since DNA is essential to life it must be repaired when damaged. UV radiation is one of the major DNA damaging agents, which photosynthetic organisms cannot avoid. READ MORE
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3. UV-induced DNA damage in humans
Abstract : Ultraviolet radiation is considered to be the most harmful part of solar energy affecting man. The depletion of the ozone layer around the Earth increases the total exposure to UV-light. The incidence of skin cancer in man has been shown to be associated with exposure to solar radiation, especially to UV-light. READ MORE
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4. Fundamental interactions in transition metal reactions
Abstract : Transition metal complexes that participate in homogeneous reactions often perform the role of a catalyst, facilitating novel reaction pathways. When these complexes are pushed away from their equilibrium, the arrangement of the coordinating ligands around the metal center is perturbed and new reaction pathways are opened. READ MORE
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5. Comparative studies of alkylating and N-heterocyclic compounds on different genetic endpoints with special emphasis on amplification of minisatellite sequences
Abstract : Several mutational events are involved in the multistage process of cancer. Genetic instability of tumor DNA is shown in a variety of genetic changes such as point mutations, chromosomal aberrations, aneuploidy, DNA amplification and somatic recombination. READ MORE