Cited by 2,886Antioxidant Activity and Oxidative StressRedox biology and oxidative stressFree Radicals and Antioxidants

Free Radicals: Properties, Sources, Targets, and Their Implication in Various Diseases

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Phaniendra, Alugoju, Jestadi, Dinesh Babu, Periyasamy, Latha·2015·Indian Journal of Clinical Biochemistry

Abstract

Free radicals and other oxidants have gained importance in the field of biology due to their central role in various physiological conditions as well as their implication in a diverse range of diseases. The free radicals, both the reactive oxygen species (ROS) and reactive nitrogen species (RNS), are derived from both endogenous sources (mitochondria, peroxisomes, endoplasmic reticulum, phagocytic cells etc.) and exogenous sources (pollution, alcohol, tobacco smoke, heavy metals, transition metals, industrial solvents, pesticides, certain drugs like halothane, paracetamol, and radiation). Free radicals can adversely affect various important classes of biological molecules such as nucleic acids, lipids, and proteins, thereby altering the normal redox status leading to increased oxidative stress. The free radicals induced oxidative stress has been reported to be involved in several diseased conditions such as diabetes mellitus, neurodegenerative disorders (Parkinson's disease-PD, Alzheimer's disease-AD and Multiple sclerosis-MS), cardiovascular diseases (atherosclerosis and hypertension), respiratory diseases (asthma), cataract development, rheumatoid arthritis and in various cancers (colorectal, prostate, breast, lung, bladder cancers). This review deals with chemistry, formation and sources, and molecular targets of free radicals and it provides a brief overview on the pathogenesis of various diseased conditions caused by ROS/RNS.

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  • Peroxisomes are dynamic and metabolically active subcellular compartments and a source of ROS including hydrogen peroxide and superoxide.

    “Another very important source of ROS, including hydrogen peroxide and superoxide anion radicals are dynamic and metabolically active subcellular compartments, peroxisomes (Phaniendra et al. 2015).”

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Research works printed but not linked: 5

  1. Gomberg M. An Incidence of Trivalent Carbon Trimethyl- phenyl. J Am Chem Soc. 1900;22:757-71.
  2. Nordberg J, Arner EJ. Reactive oxygen species, antioxidants, and the mammalian Thioredoxin system. Free Radical Biol Med. 2001;31(11):1287-312.
  3. Yla-Herttuala S. Oxidized LDL and atherogenesis. Ann N Y Acad Sci. 1999;874:134-7.
  4. Bielski BHJ, Cabelli BH, Arudi RL, Ross AB. Reactivity of RO2/O2. Radicals in aqueous solution. J Phys Chem Ref Data. 1985;14:1041-100.
  5. Cerruti PA. Pro-oxidant states and tumor activation. Science. 1985;227:375-81.

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Authors
Phaniendra, A., Jestadi, D. B., & Periyasamy, L.
Affiliations
Pondicherry University (IN)
Corresponding author
  • Jestadi, Dinesh Babu
  • Periyasamy, Latha
Venue
Indian Journal of Clinical Biochemistry
Published
2014-07-15
Volume
30
Issue
1
Pages
11-26
ISSN
  • 0970-1915 (ISSN-L)
  • 0974-0422
OpenAlex
W2023695511
Cited by
2,886
References
217
Citations by year
2026: 153 · 2025: 319 · 2024: 367 · 2023: 394 · 2022: 473 · 2021: 440 · 2020: 349 · 2019: 195 · 2018: 92 · 2017: 60 · 2016: 27 · 2015: 14 · 2014: 1
FWCI
3.28
Type
journal article
Language
en
Open access
Locations
  • Indian Journal of Clinical Biochemistry (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (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 oxygen species, reactive nitrogen species, oxidative stress, redox state, lipid peroxidation, DNA damage, protein oxidation, neurodegenerative diseases, Parkinson's disease, Alzheimer's disease, multiple sclerosis, atherosclerosis, hypertension, asthma, cataract, rheumatoid arthritis, carcinogenesis, diabetes mellitus

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