Steady state fluorescence polarization spectra and time-resolved emission decay kinetics have been measured in vitro from malignant and normal rat kidney tissue. The degrees of polarization and emission lifetimes from the cancerous and normal systems are different. The spectroscopic differences are attributed to environmental transformations local to the native flavin and porphyrin fluorophors' binding sites.
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The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/3489490