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In Vivo Monitoring the Changes of Interstitial pH and FAD/NADH Ratio by Fluorescence Spectroscopy in Healing Skin Wounds
Author(s) -
Mokrý Michal,
Gál Peter,
Vidinský Boris,
Kušnír Jaroslav,
Dubayová Katarína,
Mozeš Štefan,
Sabo Ján
Publication year - 2006
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1562/2005-09-08-ra-678
Subject(s) - flavin adenine dinucleotide , in vivo , chemistry , fluorescence , fluorescence spectroscopy , wound healing , redox , flavin group , spectroscopy , biophysics , biochemistry , cofactor , surgery , medicine , biology , enzyme , inorganic chemistry , optics , physics , microbiology and biotechnology , quantum mechanics
The aim of our study was to evaluate the changes of interstitial pH and flavin adenine dinucleotide (FAD)/reduced nicotin‐amide adenine dinucleotide (NADH) ratio in healing skin wounds using fluorescence spectroscopy in Sprague Dawley rats. In the experiment, excisional and incisional models of wound healing were used. The florescein as the pH‐sensitive probe using excitation spectra (λ Em = 535 nm) was used for the measurement of pH changes, and synchronous fluorescence spectra (Δλ= 60 nm) for the monitoring of FAD/NADH ratio changes were measured from the surfaces of healing wounds. Increase of interstitial pH and FAD/NADH ratio was recorded during the time interval from the 15th to the 65th minute after surgery. The decrease of pH between the 48th and the 72nd hour after surgery as well as the increase of FAD/NADH ratio between the 72nd and the 96th hour of wound healing were recorded. The results indicate that the use of fluorescence spectroscopy may be considered as a valuable tool for non‐invasive in vivo monitoring of selected redox parameters in the early phases of wound healing.