Cited by 8,990Antioxidant Activity and Oxidative StressRedox biology and oxidative stressFree Radicals and Antioxidants

Free Radicals in Biology and Medicine

Halliwell, Barry, Gutteridge, John M. C.·2015·Oxford University Press eBooks

Abstract

The new edition of this well-established book is thoroughly revised and gives a comprehensive account of the role of free radicals, other reactive species (RS), and antioxidants in life, health, and disease. Chapter 1 reviews how oxygen (O2) is used by living organisms, why it can be toxic, and introduces the concept of oxygen radicals and other RS; their chemistry is detailed in Chapter 2, especially for superoxide, hydroxyl radical (including Fenton chemistry), peroxynitrite, nitric oxide, ozone, and singlet O2, with emphasis on their redox properties. Subsequent chapters detail what antioxidants can be made in vivo (e.g. superoxide dismutases, peroxiredoxins) and which can come from diet (e.g. vitamins E and C, carotenoids, and polyphenols such as the flavonoids) and how they work in vivo. The role of RS in cell proliferation, senescence, and death (e.g. by apoptosis, necrosis, or intermediate forms) is presented. Methods for measuring RS are described in detail, including electron paramagnetic resonance and biomarker determination. Useful roles for RS (e.g. cell signalling, phagocyte action), as well as systems in which they cause particular problems (e.g. premature babies, the eye, the ear) are presented. Acute and chronic inflammation are used to illustrate both roles There is a comprehensive description of the role of RS in human diseases, from cancer to heart disease to dementia, in the ageing process, and in the toxicity of many agents, from ethanol to carbon tetrachloride to paraquat. Therapeutic agents active against RS are reviewed in detail, including NADPH oxidase inhibitors, N-acetylcysteine, and Ebselen.

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Crossref · 10.1093/acprof:oso/9780198717478.001.0001

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  • Tyrosine nitration inhibits tyrosine phosphorylation by tyrosine kinases due to steric interference of the NO2 group with the active site of the enzyme.

    “With the NO2 functionality on Tyr, tyrosine phosphorylation by tyrosine kinases, including receptor tyrosine kinases, is inhibited due to steric interference of the NO2 group with the active site of the enzyme.”
  • H2O2 can be decomposed to hydroxyl anion and the highly reactive hydroxyl free radical by Fe2+ or Cu+ in Fenton chemistry.

    “In that case, H2O2, which has zero dipole moments and is therefore neutral and can diffuse into or through bilayers, can be decomposed to hydroxyl anion and the highly reactive hydroxyl free radical by Fe2+ or Cu+ in a process known as Fenton chemistry [8,13].”
  • OH-mediated allylic hydrogen atom abstraction from unsaturated lipid acyl chains initiates lipid peroxidation, leading to highly reactive nucleophilic unsaturated aldehydes such as 4-hydroxynonenal.

    “while OH-mediated allylic hydrogen atom abstraction from unsaturated lipid acyl chains initiates the processes of lipid peroxidation, leading to highly reactive nucleophilic unsaturated aldehydes such as 4-hydroxynonenal (HNE) (Figure 2A) [8,13,25,26,27].”
  • ROS are extremely reactive with half-life times in the nano-second range.

    “In addition, criticism arises due to the fact that ROS are extremely reactive with half-life times in the nano-second range [63]”
  • Antioxidants reduce oxidative stress, play a key role in immunity, and may improve recovery following exercise.

    “Antioxidants reduce OS, play a key role in immunity and may improve recovery following exercise [58,59].”

    From Sleep and Nutrition Interactions: Implications for Athletes (2019) · cites this paper as [58]

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Authors
Halliwell, B., & Gutteridge, J. M. C.
Venue
Oxford University Press eBooks
Published
2015-08-01
OpenAlex
W4300198507
Cited by
8,990
References
0
Citations by year
2026: 311 · 2025: 396 · 2024: 508 · 2023: 497 · 2022: 549 · 2021: 578 · 2020: 544 · 2019: 476 · 2018: 444 · 2017: 462 · 2016: 386 · 2015: 357 · 2014: 383 · 2013: 345 · 2012: 400
FWCI
41.27
Type
book
Language
en
Open access
closed
Locations
Oxford University Press eBooks (publishedVersion)
Topics
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Physical Sciences › Chemistry › Organic Chemistry › Free Radicals and Antioxidants
Keywords
free radicals, reactive species, antioxidants, oxygen toxicity, superoxide, hydroxyl radicals, Fenton reaction, peroxynitrite, nitric oxide, singlet oxygen, superoxide dismutase, peroxiredoxin, carotenoids, polyphenols, flavonoids, apoptosis, cellular senescence, cell death, electron spin resonance, biomarkers, signal transduction, phagocytes, preterm birth, inflammation, cancer, heart disease, dementia, aging, chemical toxicity, NADPH oxidase inhibitors, N-acetylcysteine, ebselen

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