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Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Chem+Res+Toxicol 2020 ; 33 (10): 2668-2674 Nephropedia Template TP
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Protective Role of Glutathione against Peroxynitrite-Mediated DNA Damage During Acute Inflammation #MMPMID32894672
Ahmed N; Chakrabarty A; Guengerich FP; Chowdhury G
Chem Res Toxicol 2020[Oct]; 33 (10): 2668-2674 PMID32894672show ga
Inflammation is an immune response to protect against various types of infections. When unchecked, acute inflammation can be life-threatening, as seen with the current coronavirus pandemic. Strong oxidants, such as peroxynitrite produced by immune cells, are major mediators of the inflammation-associated pathogenesis. Cellular thiols play important roles in mitigating inflammation-associated macromolecular damage including DNA. Herein, we have demonstrated a role of glutathione (GSH) and other thiols in neutralizing the effect of peroxynitrite-mediated DNA damage through stable GSH-DNA adduct formation. Our observation supports the use of thiol supplements as a potential therapeutic strategy against severe COVID-19 cases and a Phase II (NCT04374461) open-label clinical trial launched in early May 2020 by the Memorial Sloan Kettering Cancer Center.