Search for dissertations about: "singlet oxygen"
Showing result 1 - 5 of 18 swedish dissertations containing the words singlet oxygen.
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1. DNA-Photosensitization by New Drugs for Photoinactivation of Viruses and Phototherapy of Tumors
Abstract : Cyanines and pyropheophorbides are two classes of photoactivable dyes which are particularly interesting for photosterilization of blood used in transfusion and for treatment of localised cancers by photodynamic therapy (PDT). After a bibliographic review about the principal mechanisms of DNA photosensitization, studies about the photosensitizing properties of these two families of compounds are presented. READ MORE
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2. Porphyrins and heme in microorganisms : Porphyrin content and its relation to phototherapy and antimicrobial treatments in vivo and in vitro
Abstract : One of the greatest threats to human health is increasing antimicrobial resistance among pathogens, and finding alternatives for treatment of bacterial infections is of highest importance together with a more controlled use of antibiotics. Porphyrins and heme have both been shown to be a promising class of compounds for inactivation of bacteria; porphyrins by their excellent properties to act as a photosensitizer, and heme by its importance as an iron source during a bacterial infection in vertebrates. READ MORE
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3. Improved bioenergetic recovery during experimental ischemia and reperfusion by irradiation
Abstract : Prolonged ischemia and reperfusion frequently occur during clinical operations. The bioenergetic status decreases during ischemia and reactive oxygen species (ROS) are formed during reperfusion, which may lead to irreversible tissue injury. READ MORE
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4. Energy metabolism in skeletal muscle during ischemia and reperfusion. Experimental and clinical aspects
Abstract : Microsurgical operations, using free vascularised transfer of tissues, induce an obligatory period of ischemia followed by reperfusion. The degree of ischemia and reperfusion injury is dependent on the ischemia time. READ MORE
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5. Effects of reactive oxygen species on the cellular vacuolar apparatus
Abstract : Reactive and potentially harmful oxygen species occur, and are continuously formed, in all cells of a living organism. Increased production of these metabolites are seen in a number of pathological states, for instance in inflammatory foci or during reoxygenation of ischemic tissue. READ MORE