Abstract
A precise and reproducible method of quantitative determination of the photosensitizer (PS) Photolon in liver samples of laboratory animals by means of a spectrophotometric assay with preliminary extraction has been developed. Conditions of the PS extraction have been optimized and validated for the quantitative determination of the PS Photolon by the spectrophotometric assay and the main analytical characteristics have been investigated. Using the method of quantitative determination of the PS Photolon in liver tissue samples a quantitative estimation of in vivo fluorescence of the liver tissue was performed after PS administration to animals. There was a high correlation (R = 0.99) between results obtained by spectrophotometry ex vivo and spectrofluorimetry in vivo. The method of fluorescence detection in vivo is applicable for studies of the pharmacokinetics of different photosensitizers.
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Original Russian Text © S.V. Shlyakhtin, T.V. Trukhacheva, G.A. Isakov, Yu.P. Istomin, 2010, published in Biomeditsinskaya Khimiya.
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Shlyakhtin, S.V., Trukhacheva, T.V., Isakov, G.A. et al. Application of the method of measurement of fluorescence intensity in vivo in biological tissues for pharmacokinetic studies of different chlorin-based photosensitizers. Biochem. Moscow Suppl. Ser. B 4, 184–190 (2010). https://doi.org/10.1134/S1990750810020095
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DOI: https://doi.org/10.1134/S1990750810020095