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Terapia fotodynamiczna

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Krajewska E., Bryszewska M., Uniwersytet Łódzki K. B. O.
Acta Universitatis Lodziensis. Folia Biochimica et Biophysica
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1999
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vol. 14
EN
This article describes the term of photodynamic therapy, a relatively new way of cancer treatment and gives the rewiev of the commonly used photosensitizers, expecially the phthalocyanines and their way of action. The last part is devoted to the action of PDT on human erythrocytes.
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Generowanie rodników tlenowych w procesie autooksydacji hemoprotein

100%
Gondko R., Gabryelak T., Chapman I. V., Uniwersytet Łódzki K. B. O.
Acta Universitatis Lodziensis. Folia Biochimica et Biophysica
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1996
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vol. 11
EN
Life is a flux of matter, energy and information. Most compounds must remain in a reduced state in the stream. Living organisms use two sources of energy. Autotrophs utylise solar energy while heterotrophs make use of energy released from food oxidation. In the animated world, the turnover of matter is always accompanied by turnover of energy. Oxygen, which is an element indispensable for life of most organisms (aerobes), participates in these processes. In order to provide organisms with appropriate amounts of oxygen, appropriate adaptation mechanisms have evolved, enabling a continuous supply of this gas to cells. One mechanism is the vascular system, accompanied, at the molecular level, by the appearance of an oxygen-carrying respiratory proteins (e.g. hemoglobin, hemocyanin etc.).
3
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Adaptacja homeowiskotyczna ryb

100%
Flipiak A., Gondko R., Gabryelak T., Uniwersytet Łódzki K. B. O.
Acta Universitatis Lodziensis. Folia Biochimica et Biophysica
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1997
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vol. 12
EN
Homeowiscous adaptation is a common phenomenon observed in poikilotherms which remain active at different temperatures. It is usually caused by changes in fatty acids pool in cellular membranes, what enable to maintain the physical structure of their membranes within tolerable limits. The increased unsaturaition of membrane lipids has as its basis some changes in activity of the appropriate enzymes. Fluctuations in fluidity of membrame lipids activate transcription of the genes for the suitable enzymes.
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