Photoactivity of kynurenine-derived UV filters

Quantum yields of photodecomposition and triplet state formation under aerobic and anaerobic conditions are determined for kynurenine (KN), 3-hydroxykynurenine (3OHKN), xanthurenic acid (XAN), and kynurenine adducts of glutathione (GSH-KN), cysteine (Cys-KN), histidine (His-KN), and lysine (Lys-KN)...

Full description

Saved in:
Bibliographic Details
Published in:Journal of photochemistry and photobiology. B, Biology Biology, 2008-12, Vol.93 (3), p.127-132
Main Authors: Sherin, P.S., Tsentalovich, Yu.P., Snytnikova, O.A., Sagdeev, R.Z.
Format: Article
Language:English
Subjects:
Amino acids
Anaerobiosis
Cataract
Cysteine - chemistry
Cysteine - radiation effects
Glutathione - chemistry
Glutathione - radiation effects
Histidine - chemistry
Histidine - radiation effects
Kynurenine
Kynurenine - chemistry
Kynurenine - radiation effects
Photolysis
Quantum Theory
Scattering, Radiation
Time Factors
Triplet state
Ultraviolet Rays
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Quantum yields of photodecomposition and triplet state formation under aerobic and anaerobic conditions are determined for kynurenine (KN), 3-hydroxykynurenine (3OHKN), xanthurenic acid (XAN), and kynurenine adducts of glutathione (GSH-KN), cysteine (Cys-KN), histidine (His-KN), and lysine (Lys-KN) in aqueous solutions. The highest yields of anaerobic photodecomposition were obtained for GSH-KN and His-KN adducts, which correlates with the highest triplet yields for these compounds. In aerobic conditions, the photodecomposition yields for all compounds under study increase; the highest decomposition rates were observed for His-KN and 3OHKN. The fast decomposition of the latter is attributed to the dark autoxidation of the starting compound.
ISSN:1011-1344
1873-2682
DOI:10.1016/j.jphotobiol.2008.07.006