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The Haber–Weiss reaction and mechanisms of toxicity
Abstract
The concept that the highly reactive hydroxyl radical (HO) could be generated from an interaction between superoxide (O(2)(-)) and hydrogen peroxide (H(2)O(2)) was proposed (with Joseph Weiss) in Professor Haber's final paper published in 1934. Until it was recognized that free radicals are produced in biological systems, this finding seemed to have no relevance to biology. However, following the discovery that O(2)(-) was a normal cellular metabolite, it was quickly recognized that the Haber-Weiss reaction (O(2)(-)+H(2)O(2) -->HO+O(2)+HO(-)) might provide a means to generate more toxic radicals. Although the basic reaction has a second order rate constant of zero in aqueous solution and thus cannot occur in biological systems, the ability of iron salts to serve as catalysts was discussed by these authors. Because transition metal ions, particularly iron, are present at low levels in biological systems, this pathway (commonly referred to as the iron-catalyzed Haber-Weiss reaction) has been widely postulated to account for the in vivo generation of the highly reactive HO. Recent data documenting the importance of redox regulation of various cellular signaling pathways makes it clear that free radicals are essential for normal cellular function. However, this also makes it obvious that disruptions of free radical production or defenses at many different levels can lead to adverse effects on cells. While the generation of HO, which is by far the most reactive oxygen species, is generally indicative of an overtly toxic event, it is through studies at this level that we have reached a better understanding of free radicals as both signaling molecules and toxic species.
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“Superoxide can also react with ferric iron in the Haber-Weiss reaction [67] to produce Fe(II) again, thereby effecting redox cycling:”
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“Superoxide (also produced by mitochondria) can react with ferric iron in the Haber-Weiss reaction (Kehrer 2000) to produce Fe(II) again, thereby effecting redox cycling of the iron (Fig. 1):2”
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Al‐Sheikh, Y. A., Ghneim, H. K., Aljaser, F., & Aboul‐Soud, M. A. M. (2017) · Experimental and Therapeutic Medicine · doi:10.3892/etm.2017.4522 · Cited by 10
“The demonstrated increased H 2 O 2 generation could have also interacted with SOA thus producing the more reactive hydroxyl radicals (48) known to react with purines and pyrimidines causing DNA damage and lowered antioxidant gene expression.”
Iron overload and programmed bone marrow cell death: Potential mechanistic insights
Wudhikulprapan, W., Chattipakorn, S. C., Chattipakorn, N., & Kumfu, S. (2024) · Archives of Biochemistry and Biophysics · doi:10.1016/j.abb.2024.109954 · Cited by 10
Machado, M. D., & Soares, E. V. (2024) · Toxics · doi:10.3390/toxics12120905 · Cited by 10
“Cu can induce HO · formation via the Haber–Weiss/Fenton reaction in the presence of H 2 O 2 [56].”
Jiang, X., Chen, X., He, L., Qin, D., Nie, M., Li, C., & Liu, X. (2024) · Chemico-Biological Interactions · doi:10.1016/j.cbi.2024.111367 · Cited by 10
Vidanapathirana, G. U., Islam, M. S., Gamage, S. M. K., Lam, A. K.-Y., & Gopalan, V. (2025) · Cancer Medicine · doi:10.1002/cam4.71019 · Cited by 10
Involvement of H2O2 in fluazifop-P-butyl-induced cell death in bristly starbur seedlings
Luo, X., Liu, Z., Sunohara, Y., Matsumoto, H., & Li, P. (2016) · Pesticide Biochemistry and Physiology · doi:10.1016/j.pestbp.2016.12.007 · Cited by 10
Xiao, Y., Yuan, B., Hu, W., Qi, J., Jiang, H., Sun, B., Zhang, J., & Liang, S. (2021) · Frontiers in Cell and Developmental Biology · doi:10.3389/fcell.2021.683448 · Cited by 10
“Free iron can generate highly reactive ROS directly through the Fenton and Haber–Weiss reactions (Kehrer, 2000).”
BackgroundUddin, M. J., Lo, J. H.-J., Oltman, C. G., Crews, B. C., Huda, T., Liu, J., Kingsley, P. J., Lin, S., Milad, M., Aleem, A. M., et al. (2022) · ACS Chemical Biology · doi:10.1021/acschembio.1c00961 · Cited by 10
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“For example, in the absence of adequate levels of copper, H 2 O 2 can be converted to OH, which is a highly reactive oxidant.(31,56) Animal and human studies have indicated that the concentration of antioxidant scavengers is reduced in the presence of risk factors for CVD, as well as in the presence of overt atheroscl…”
BackgroundLower Iron Levels Predict Acute Hydrocephalus Following Aneurysmal Subarachnoid Hemorrhage
Zhang, Y., Zheng, S., Shang‐Guan, H., Kang, D.-Z., Chen, G., & Yao, P. (2019) · World Neurosurgery · doi:10.1016/j.wneu.2019.03.009 · Cited by 10
Health Effects of Censored Elongated Mineral Particles: A Critical Review
Egilman, D. S., Steffen, J. E., Tran, T., Clancy, K., Rigler, M. W., & Longo, W. E. (2019) · doi:10.1520/stp161820180080 · Cited by 10
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Rohini, G., Konakanchi, R., & Sreekanth, A. (2018) · Tetrahedron Letters · doi:10.1016/j.tetlet.2018.09.028 · Cited by 10
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Young, M. F., Nguyen, P. H., Tran, L. M., Long, K. Q., Tandon, S., Martorell, R., & Ramakrishnan, U. (2023) · Frontiers in Nutrition · doi:10.3389/fnut.2023.1114101 · Cited by 9
Olanlokun, J. O., Owolabi, B., Odedeyi, A., Oderinde, S. O., Bodede, O., Steenkamp, P. A., Koorbanally, N. A., & Olorunsogo, O. O. (2024) · Journal of Ethnopharmacology · doi:10.1016/j.jep.2024.118241 · Cited by 9
Wang, J., Li, J., Wang, S., Pan, Y., Yang, J., Yin, L., Dou, H., & Hou, Y. (2024) · Stem Cells · doi:10.1093/stmcls/sxae035 · Cited by 9
An evaluation of pyrite as a component of respirable coal dust.
Eskanlou, A., & Arnold, B. J. (2024) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2024.135340 · Cited by 8
Chappuis, F., Tran, H. N., Jorge, P. G., Zein, S. A., Kyriakou, I., Emfietzoglou, D., Bailat, C. J., Bochud, F. O., Incerti, S., & Desorgher, L. (2024) · Scientific Reports · doi:10.1038/s41598-024-76769-0 · Cited by 9
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“This radical together with other reactive oxygen species (ROS – singlet oxygen, hydrogen peroxide) can damage DNA, lipids and proteins that are important molecules mainly as enzymes, transporters, or antioxidants (Kehrer 2000).”
Queiroz, L. G., & de Torresi, S. I. C. (2025) · Ecotoxicology · doi:10.1007/s10646-025-02907-7 · Cited by 9
“The release of metal ions from MNPs also contributes to ROS generation through Fenton-like or Haber-Weiss reactions, amplifying redox cycling within cells (Dhakshinamoorthy et al. 2012; Kehrer, 2000).”
Matin, M., Singla, R. K., Jóźwik, A., Horbańczuk, J. O., Ksepka, N., Wysocki, K., Ijinu, T. P., Krishnakumar, N. M., Sasidharan, S. P., Ezenyi, I. C., et al. (2025) · Current Research in Biotechnology · doi:10.1016/j.crbiot.2025.100329 · Cited by 10
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Eskanlou, A., & Arnold, B. J. (2026) · International Journal of Coal Science & Technology · doi:10.1007/s40789-025-00841-x · Cited by 10
“The oxidative dissolution of pyrite releases ferrous iron into the solution, which then interacts with dissolved molecular oxygen leading to the Haber–Weiss reaction mechanism (Kehrer 2000) and eventually the formation of H 2 O 2 (Rxns. ).”
Polyoxometalates in environmental remediation and energy storage
Gregorovic, I., Lotfian, N., Khajavian, R., Maity, S., Mirzaei, M., Mal, S. S., Aureliano, M., & Rompel, A. (2026) · Environmental Science Nano · doi:10.1039/d5en00964b · Cited by 11
Metadata
- Authors
- Kehrer, J. P.
- Affiliations
- The University of Texas at Austin (US)
- Corresponding author
- Kehrer, James P
- Venue
- Toxicology
- Publisher
- Elsevier BV
- Published
- 2000-08
- Volume
- 149
- Issue
- 1
- Pages
- 43-50
- ISSN
- 0300-483X (ISSN-L)
- OpenAlex
- W2126473492
- Cited by
- 1,418
- References
- 39
- Citations by year
- 2026: 46 · 2025: 71 · 2024: 90 · 2023: 91 · 2022: 101 · 2021: 101 · 2020: 91 · 2019: 65 · 2018: 76 · 2017: 72 · 2016: 71 · 2015: 62 · 2014: 48 · 2013: 65 · 2012: 59
- FWCI
- 1.20
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Toxicology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health (5r01es009791-04, 5r01hl051005-05, 5r01hl048035-07)
- National Heart, Lung, and Blood Institute (HL 48035, HL 51005)
- National Institute of Environmental Health Sciences (ES09791)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
- Health Sciences › Medicine › Biochemistry (medical) › Antioxidant Activity and Oxidative Stress
- Physical Sciences › Chemistry › Organic Chemistry › Free Radicals and Antioxidants
- Keywords
- Haber-Weiss reaction, hydroxyl radicals, superoxide, hydrogen peroxide, free radicals, reactive oxygen species, oxidative stress, redox signaling, toxicity mechanisms, transition metal catalysis
- MeSH terms
- Animals, Humans, Hydrogen Peroxide, Superoxides, Hydroxyl Radical, Oxidative Stress
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