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- W2018129056 abstract "Porphyrins binding and transport to tumor is the one of the central tasks of photodynamic therapy of tumor (PDT). The main carriers of porphyrins (photosensitizers) in the blood are lipoproteins, serum albumin and hemoglobin. In studying the phenomenon of complexation of proteins with ligands must take into considering the real conditions that exist in the organism and, in particular, take into considering the presence of fatty acids in blood. Up to date the role of fatty acids (palmitic and stearic) in the binding of porphyrins with proteins not been determined. A key step in solving of these problems is to determine the binding constants of porphyrin-protein pairs and effect of fatty acids on this process. The most direct and sufficiently accurate methods of solving such problems are complementary methods of absorption and fluorescence spectroscopy. The results of spectral studies on the binding of porphyrins to serum albumin and hemoglobin in the presence of fatty acids demonstrated a significant decrease in the degree of binding pair porphyrin-albumin and porphyrin-hemoglobin with increasing concentrations of fatty acids in solution. The results lead to the conclusion that for hemoglobin the presence in a solution of fatty acids on binding to the porphyrins affected more significantly than for serum albumin. Thus, in natural conditions, when in the blood presented fatty acids the preference between hemoglobin and serum albumin in the binding and in the transport of porphyrins should be given to serum albumin." @default.
- W2018129056 created "2016-06-24" @default.
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- W2018129056 date "2011-02-10" @default.
- W2018129056 modified "2023-09-23" @default.
- W2018129056 title "Effect of fatty acids on the complexation of proteins with porphyrins" @default.
- W2018129056 doi "https://doi.org/10.1117/12.876255" @default.
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