What question did this study set out to answer?

To review the biochemical production, metabolism, cellular signaling pathways, and pathological implications of the major lipid peroxidation products malondialdehyde (MDA) and 4-hydroxy-2-nonenal (4-HNE).

January 1, 2014Oxidative Medicine and Cellular LongevityOpen Access

Lipid Peroxidation: Production, Metabolism, and Signaling Mechanisms of Malondialdehyde and 4-Hydroxy-2-Nonenal

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Authors

AAAntonio AyalaUniversidad de Sevilla MMMario MuñozHospital Clínico Universitario de Valladolid SASandro ArgüellesUniversity of Pisa

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Implication

Narrative review outlines the dual signaling and cytotoxic mechanisms of lipid peroxidation products in mammalian cells, highlighting their contrasting roles in survival and pathology.

Key Points

To review the biochemical production, metabolism, cellular signaling pathways, and pathological implications of the major lipid peroxidation products malondialdehyde (MDA) and 4-hydroxy-2-nonenal (4-HNE).
Literature synthesis of experimental findings and mechanistic studies on lipid peroxidation spanning four decades.
Evaluation of in vivo mammalian model systems used to investigate omega-6 polyunsaturated fatty acid degradation and downstream signaling.
Identifies free radical attack on polyunsaturated fatty acids as the primary source of bioactive aldehydes, notably MDA and 4-HNE.
Demonstrates that 4-HNE acts bifunctionally: low physiological levels stimulate protective gene expression and cell survival, whereas elevated concentrations induce cytotoxicity, gene repression, and programmed cell death.
Details the direct involvement of aberrant MDA and 4-HNE accumulation across various mammalian disease models and cellular pathological processes.

Cite This Study

Ayala et al. (2014) studied this question.

synapsesocial.com/papers/69d56c4e75589c71d767cd71 https://doi.org/10.1155/2014/360438

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Implication

Narrative review outlines the dual signaling and cytotoxic mechanisms of lipid peroxidation products in mammalian cells, highlighting their contrasting roles in survival and pathology.

Lipid Peroxidation: Production, Metabolism, and Signaling Mechanisms of Malondialdehyde and 4-Hydroxy-2-Nonenal

Discussion

Member takes

Implication

Key Points

Cite This Study

Lipid Peroxidation: Production, Metabolism, and Signaling Mechanisms of Malondialdehyde and 4-Hydroxy-2-Nonenal

Discussion

Member takes

Implication

Key Points

Cite This Study

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