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Findings in redox biology: From H2O2 to oxidative stress.
Sies, Helmut.
  • Sies H; Institute of Biochemistry and Molecular Biology I, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany; Leibniz Research Institute for Environmental Medicine, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany. Electronic address: sies@hhu.de.
J Biol Chem ; 295(39): 13458-13473, 2020 09 25.
Article in English | MEDLINE | ID: covidwho-1023994
ABSTRACT
My interest in biological chemistry proceeded from enzymology in vitro to the study of physiological chemistry in vivo Investigating biological redox reactions, I identified hydrogen peroxide (H2O2) as a normal constituent of aerobic life in eukaryotic cells. This finding led to developments that recognized the essential role of H2O2 in metabolic redox control. Further research included studies on GSH, toxicological aspects (the concept of "redox cycling"), biochemical pharmacology (ebselen), nutritional biochemistry and micronutrients (selenium, carotenoids, flavonoids), and the concept of "oxidative stress." Today, we recognize that oxidative stress is two-sided. It has its positive side in physiology and health in redox signaling, "oxidative eustress," whereas at higher intensity, there is damage to biomolecules with potentially deleterious outcome in pathophysiology and disease, "oxidative distress." Reflecting on these developments, it is gratifying to witness the enormous progress in redox biology brought about by the science community in recent years.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Hydrogen Peroxide Type of study: Prognostic study Limits: Humans Language: English Journal: J Biol Chem Year: 2020 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Hydrogen Peroxide Type of study: Prognostic study Limits: Humans Language: English Journal: J Biol Chem Year: 2020 Document Type: Article