A combined experimental and DFT approach on free radical induced oxidations of kynurenic acid

Kavanal P. Prasanthkumar, P. K. Sajith and Beena G. Singh

New J. Chem., 2020, 44, 18858
DOI: 10.1039/D0NJ04472E

Unravelling structures of radicals of kynurenic acid formed in the photoinduced reactions with tryptophan and N-acetyl tyrosine

Olga B. Morozova, Maksim P. Geniman, Mikhail S. Panov, Natalya N. Fishman, Alexandra V. Yurkovskaya and Peter S. Sherin

Phys. Chem. Chem. Phys., 2022, 24, 27558
DOI: 10.1039/D2CP03245G

Aggregation of α-crystallins in kynurenic acid-sensitized UVA photolysis under anaerobic conditions

P. S. Sherin, E. A. Zelentsova, E. D. Sormacheva, V. V. Yanshole, T. G. Duzhak and Yu. P. Tsentalovich

Phys. Chem. Chem. Phys., 2016, 18, 8827
DOI: 10.1039/C5CP06693J

Kynurenic acid and its chromophoric core 4-hydroxyquinoline react with tryptophan via proton-coupled electron transfer, and with tyrosine via H-transfer

Olga B. Morozova, Alexandra V. Yurkovskaya and Peter S. Sherin

Phys. Chem. Chem. Phys., 2021, 23, 22483
DOI: 10.1039/D1CP03496K

Ultrafast excited state decay of natural UV filters: from intermolecular hydrogen bonds to a conical intersection

Peter S. Sherin, Yuri P. Tsentalovich, Eric Vauthey and Enrico Benassi

Phys. Chem. Chem. Phys., 2018, 20, 15074
DOI: 10.1039/C8CP02183J

The Biology and Biochemistry of Kynurenic Acid, a Potential Nutraceutical with Multiple Biological Effects

Luana de Fátima Alves, J. Bernadette Moore and Douglas B. Kell

IJMS, 2024, 25, 9082
DOI: 10.3390/ijms25169082

Disproportionation and dimerisation of kynurenic acid under UV light

Olga B. Morozova, Yuliya S. Zhuravleva, Maksim P. Geniman, Alexandra V. Yurkovskaya and Peter S. Sherin

Journal of Photochemistry and Photobiology A: Chemistry, 2023, 445, 115009
DOI: 10.1016/j.jphotochem.2023.115009

Influence of medium viscosity on photophysical properties of kynurenic acid and kynurenine yellow

E. A. Zelentsova, P. S. Sherin, Yu. P. Tsentalovich and R. Z. Sagdeev

Russ Chem Bull, 2017, 66, 267
DOI: 10.1007/s11172-017-1727-6

Mechanisms of Photostability in Kynurenines: A Joint Electronic-Structure and Dynamics Study

Deniz Tuna, Nađa Došlić, Momir Mališ, Andrzej L. Sobolewski and Wolfgang Domcke

J. Phys. Chem. B, 2015, 119, 2112
DOI: 10.1021/jp501782v

Investigation of tryptophan-related yellowing in parenteral amino acid solution: Development of a stability-indicating method and assessment of degradation products in pharmaceutical formulations

Nina Unger, Antonio Ferraro and Ulrike Holzgrabe

Journal of Pharmaceutical and Biomedical Analysis, 2020, 177, 112839
DOI: 10.1016/j.jpba.2019.112839

UV-A induced damage to lysozyme via Type I photochemical reactions sensitized by kynurenic acid

Ekaterina D. Savina, Yuri P. Tsentalovich and Peter S. Sherin

Free Radical Biology and Medicine, 2020, 152, 482
DOI: 10.1016/j.freeradbiomed.2019.11.017

Oxygenation is the main pathway for the reaction between superoxide anion and tryptophan radical

Yuliya S. Zhuravleva and Petr S. Sherin

Journal of Photochemistry and Photobiology A: Chemistry, 2025, 469, 116571
DOI: 10.1016/j.jphotochem.2025.116571

Trace derivatives of kynurenine potently activate the aryl hydrocarbon receptor (AHR)

Seung-Hyeon Seok, Zhi-Xiong Ma, John B. Feltenberger, Hongbo Chen, Hui Chen, Cameron Scarlett, Ziqing Lin, Kenneth A. Satyshur, Marissa Cortopassi, Colin R. Jefcoate, Ying Ge, Weiping Tang, Christopher A. Bradfield and Yongna Xing

Journal of Biological Chemistry, 2018, 293, 1994
DOI: 10.1074/jbc.RA117.000631

Kynurenic Acid Accelerates Healing of Corneal Epithelium In Vitro and In Vivo

Anna Matysik-Woźniak, Waldemar A. Turski, Monika Turska, Roman Paduch, Mirosław Łańcut, Paweł Piwowarczyk, Mirosław Czuczwar and Robert Rejdak

Pharmaceuticals, 2021, 14, 753
DOI: 10.3390/ph14080753

Visualising UV-A light-induced damage to plasma membranes of eye lens

Peter S. Sherin, Aurimas Vyšniauskas, Ismael López-Duarte, Peter R. Ogilby and Marina K. Kuimova

Journal of Photochemistry and Photobiology B: Biology, 2021, 225, 112346
DOI: 10.1016/j.jphotobiol.2021.112346

Uncyclized xanthommatin is a key ommochrome intermediate in invertebrate coloration

Florent Figon, Thibaut Munsch, Cécile Croix, Marie-Claude Viaud-Massuard, Arnaud Lanoue and Jérôme Casas

Insect Biochemistry and Molecular Biology, 2020, 124, 103403
DOI: 10.1016/j.ibmb.2020.103403

Influence of pH on radical reactions between kynurenic acid and amino acids tryptophan and tyrosine. Part II. Amino acids within the protein globule of lysozyme

Yuliya S. Zhuravleva and Peter S. Sherin

Free Radical Biology and Medicine, 2021, 174, 211
DOI: 10.1016/j.freeradbiomed.2021.08.001

Long time stability of 35 small endogenous biomolecules in dried urine spotted on various surfaces and environmental conditions

Laura Franke, Frank T. Peters and Dirk K. Wissenbach

Forensic Science International, 2022, 339, 111420
DOI: 10.1016/j.forsciint.2022.111420

Antiradical capacity of ommochromes

Yanet Romero and Ana Martínez

J Mol Model, 2015, 21
DOI: 10.1007/s00894-015-2773-3

Optical properties of the human lens constituents

Ekaterina A. Zelentsova, Lyudmila V. Yanshole, Anjella Zh. Fursova and Yuri P. Tsentalovich

Journal of Photochemistry and Photobiology B: Biology, 2017, 173, 318
DOI: 10.1016/j.jphotobiol.2017.06.005

Reactivity and degradation products of tryptophan in solution and proteins

Stephanie Bellmaine, Alisa Schnellbaecher and Aline Zimmer

Free Radical Biology and Medicine, 2020, 160, 696
DOI: 10.1016/j.freeradbiomed.2020.09.002

Photophysical aspects of biological photosensitizer Kynurenic acid from the perspective of experimental and quantum chemical study

Anuva Samanta, Nikhil Guchhait and Subhash Chandra Bhattacharya

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2014, 129, 457
DOI: 10.1016/j.saa.2014.03.079

Terahertz time-domain spectroscopy for monitoring the dynamic process of tryptophan photooxidation and the concentration determination

Ting Zhang, Zhenqi Zhu, Yujing Bian, Xun Zhang, Lvzhu Cheng, Hao Qin and Bin Yang

Journal of Molecular Structure, 2025, 1331, 141640
DOI: 10.1016/j.molstruc.2025.141640

Bright Green Biofluorescence in Sharks Derives from Bromo-Kynurenine Metabolism

Hyun Bong Park, Yick Chong Lam, Jean P. Gaffney, James C. Weaver, Sara Rose Krivoshik, Randy Hamchand, Vincent Pieribone, David F. Gruber and Jason M. Crawford

iScience, 2019, 19, 1291
DOI: 10.1016/j.isci.2019.07.019

Influence of viscosity on mechanism and products of radical reactions of kynurenic acid and tryptophan

E. D. Savina, Yu. P. Tsentalovich and P. S. Sherin

Russ Chem Bull, 2021, 70, 2339
DOI: 10.1007/s11172-021-3350-9

Highly sensitive lanthanide complex as a probe for l‐kynurenine: A cancer biomarker

Susan Varghese, Arya J. M, Anju S. Madanan, Merin K. Abraham, Ali Ibrahim Shkhair, Geneva Indongo, Greeshma Rajeevan, Vijila N. S, Arathy B. K and Sony George

Luminescence, 2024, 39
DOI: 10.1002/bio.4740

Acid-alkaline properties of triplet state and radical of kynurenic acid

Yuliya S. Zhuravleva and Yuri P. Tsentalovich

Journal of Photochemistry and Photobiology A: Chemistry, 2018, 365, 7
DOI: 10.1016/j.jphotochem.2018.07.029

Influence of pH on radical reactions between kynurenic acid and amino acids tryptophan and tyrosine. Part I. Amino acids in free state

Yuliya S. Zhuravleva and Peter S. Sherin

Free Radical Biology and Medicine, 2021, 172, 331
DOI: 10.1016/j.freeradbiomed.2021.06.015

Application of Liquid Chromatography Coupled to Mass Spectrometry in Quality Assessment of Dietary Supplements—A Case Study of Tryptophan Supplements: Release Assay, Targeted and Untargeted Studies

Krzysztof Adam Stępień and Joanna Giebułtowicz

Pharmaceuticals, 2022, 15, 448
DOI: 10.3390/ph15040448

Structure-property relationship between different molecular precursors and the final properties of carbon dots: Preparation, characterization and applications as sensors for metal ions

Tarciane da Silva Pinto, Arthur Hegermann Ferreira, Nestor Cifuentes Taborda, João Paulo de Mesquita, Erico Tadeu Fraga Freitas, Sthéfany Zaida Silva do Amparo, Edmar Avellar Soares, Claudio Luis Donnici, Everton Luiz de Paula and Fabiano Vargas Pereira

Optical Materials, 2024, 156, 115999
DOI: 10.1016/j.optmat.2024.115999

Proton-coupled electron transfer as the mechanism of reaction between triplet state of kynurenic acid and tryptophan

Yuliya S. Zhuravleva, Olga B. Morozova, Yuri P. Tsentalovich and Peter S. Sherin

Journal of Photochemistry and Photobiology A: Chemistry, 2020, 396, 112522
DOI: 10.1016/j.jphotochem.2020.112522

Evidence against involvement of kynurenate branch of kynurenine pathway in pathophysiology of Fuchs’ dystrophy and keratoconus

Anna Matysik-Woźniak, Artur Wnorowski, Waldemar A. Turski, Krzysztof Jóźwiak, Robert Rejdak and Anselm Jünemann

Experimental Eye Research, 2022, 216, 108959
DOI: 10.1016/j.exer.2022.108959

Kinetic Studies of Antioxidant Properties of Ovothiol A

Nataliya A. Osik, Ekaterina A. Zelentsova and Yuri P. Tsentalovich

Antioxidants, 2021, 10, 1470
DOI: 10.3390/antiox10091470

Dimerization and oxidation of tryptophan in UV-A photolysis sensitized by kynurenic acid

Ekaterina D. Sormacheva, Peter S. Sherin and Yuri P. Tsentalovich

Free Radical Biology and Medicine, 2017, 113, 372
DOI: 10.1016/j.freeradbiomed.2017.10.007