[HTML][HTML] The mechanism of action of N-acetylcysteine (NAC): The emerging role of H2S and sulfane sulfur species

B Pedre, U Barayeu, D Ezeriņa, TP Dick - Pharmacology & therapeutics, 2021 - Elsevier
Initially adopted as a mucolytic about 60 years ago, the cysteine prodrug N-acetylcysteine
(NAC) is the standard of care to treat paracetamol intoxication, and is included on the World …

New aspects of redox signaling mediated by supersulfides in health and disease

T Akaike, M Morita, S Ogata, J Yoshitake… - Free Radical Biology …, 2024 - Elsevier
Oxygen molecules accept electrons from the respiratory chain in the mitochondria and are
responsible for energy production in aerobic organisms. The reactive oxygen species …

Synthesis of sulfides and persulfides is not impeded by disruption of three canonical enzymes in sulfur metabolism

QH Zainol Abidin, T Ida, M Morita, T Matsunaga… - Antioxidants, 2023 - mdpi.com
Reactive sulfur species, or persulfides and polysulfides, such as cysteine hydropersulfide
and glutathione persulfide, are endogenously produced in abundance in both prokaryotes …

Cellular conditions responsible for methylmercury-mediated neurotoxicity

M Fujimura, F Usuki - International Journal of Molecular Sciences, 2022 - mdpi.com
Methylmercury (MeHg) is a widely known environmental pollutant that causes severe
neurotoxicity. MeHg-induced neurotoxicity depends on various cellular conditions, including …

Chemical biology of reactive sulfur species: hydrolysis-driven equilibrium of polysulfides as a determinant of physiological functions

T Sawa, T Takata, T Matsunaga, H Ihara… - Antioxidants & Redox …, 2022 - liebertpub.com
Significance: Polysulfide species (ie, RS nR′, n> 2; and RS nH, n> 1) exist in many
organisms. The highly nucleophilic nature of hydropersulfides and hydropolysulfides …

Redox regulation of xenobiotics by reactive sulfur and supersulfide species

T Zhang, T Akaike, T Sawa - Antioxidants & Redox Signaling, 2024 - liebertpub.com
Significance: Routine exposure to xenobiotics is unavoidable during our lifetimes. Certain
xenobiotics are hazardous to human health, and are metabolized in the body to render them …

[HTML][HTML] Polysulfide stabilization by tyrosine and hydroxyphenyl-containing derivatives that is important for a reactive sulfur metabolomics analysis

HA Hamid, A Tanaka, T Ida, A Nishimura, T Matsunaga… - Redox biology, 2019 - Elsevier
The physiological importance of reactive sulfur species (RSS) such as cysteine
hydropersulfide (CysSSH) has been increasingly recognized in recent years. We have …

N-Acetylcysteine and its immunomodulatory properties in humans and domesticated animals

S Tieu, A Charchoglyan, L Paulsen… - Antioxidants, 2023 - mdpi.com
N-acetylcysteine (NAC), an acetylated derivative of the amino acid L-cysteine, has been
widely used as a mucolytic agent and antidote for acetaminophen overdose since the 1960s …

S-persulfidation: chemistry, chemical biology, and significance in health and disease

C Yang, NO Devarie-Baez, A Hamsath… - Antioxidants & redox …, 2020 - liebertpub.com
Significance: S-Persulfidation generates persulfide adducts (RSSH) on both small
molecules and proteins. This process is believed to be critical in the regulation of biological …

Enzymatic regulation and biological functions of reactive cysteine persulfides and polysulfides

T Sawa, H Motohashi, H Ihara, T Akaike - Biomolecules, 2020 - mdpi.com
Cysteine persulfide (CysSSH) and cysteine polysulfides (CysSSnH, n> 1) are cysteine
derivatives that have sulfane sulfur atoms bound to cysteine thiol. Advances in analytical …