Iron, oxidative stress and human health
Abstract
The amount of iron within the cell is carefully regulated in order to provide an adequate level of the micronutrient while preventing its accumulation to toxic levels. Iron excess is believed to generate oxidative stress, understood as an increase in the steady state concentration of oxygen radical intermediates. The main aspects of cellular metabolism of iron, with special emphasis on the role of iron with respect to oxidative damage to lipid membranes, are briefly reviewed here. Both in vitro and in vivo models are examined. Finally, a discussion of iron overload and its impact on human health is included. Overall, further studies are required to assess more effective means to limit iron-dependent damage, by minimizing the formation and release of free radicals in tissues when the cellular iron steady state concentration is increased either as a consequence of disease or by therapeutic iron supplementation.
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Iron can catalyze the reaction from O2− and H2O2 to the extremely reactive •OH within mitochondria.
“Iron is a transitional metal and it can catalyze the reaction from O2− and H2O2 to the extremely reactive •OH within mitochondria [143].”
From The Pathophysiology of Gestational Diabetes Mellitus (2018) · cites this paper as [143]
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- Authors
- Puntarulo, S.
- Affiliations
- Universidad de Buenos Aires (AR)
- Corresponding author
- Puntarulo, Susana
- Venue
- Molecular Aspects of Medicine
- Publisher
- Elsevier BV
- Published
- 2005-08
- Volume
- 26
- Issue
- 4-5
- Pages
- 299-312
- ISSN
- 0098-2997 (ISSN-L)
- OpenAlex
- W2048378855
- Cited by
- 348
- References
- 2
- Citations by year
- 2026: 7 · 2025: 31 · 2024: 22 · 2023: 26 · 2022: 22 · 2021: 19 · 2020: 25 · 2019: 27 · 2018: 20 · 2017: 16 · 2016: 17 · 2015: 18 · 2014: 19 · 2013: 17 · 2012: 13
- FWCI
- 1.15
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Molecular Aspects of Medicine (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Consejo Nacional de Investigaciones Científicas y Técnicas
- Universidad de Buenos Aires
- Topics
- Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
- Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
- Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
- Keywords
- iron metabolism, oxidative stress, iron overload, free radicals, lipid peroxidation, iron homeostasis, iron supplementation, human health
- MeSH terms
- Ferritins, Health, Humans, Iron, Reactive Oxygen Species, Oxidative Stress, Iron Overload, Dietary Supplements
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