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Magnesium as a Bioenergetic Checkpoint Linking Mitochondrial Function, Metabolic Disease, and Aging
Chien-Wei Huang1,2, Chen-Yueh Wen3, Andy P Tsai4
1Division of Nephrology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
Aging Cell
|June 5, 2026
Summary
Magnesium (Mg2+) is more than a cellular electrolyte; it actively regulates mitochondrial energy production and resilience. Proper magnesium levels are crucial for metabolic health, stress tolerance, and healthy aging.
Area of Science:
- Mitochondrial bioenergetics
- Metabolic resilience
- Renal magnesium handling
Background:
- Magnesium (Mg2+) traditionally viewed as a permissive electrolyte.
- Emerging evidence highlights Mg2+ as an active regulator of cellular energy and resilience.
- Disruptions in magnesium homeostasis link to metabolic inflexibility, insulin resistance, and aging.
Purpose of the Study:
- Synthesize recent advances in renal magnesium handling, mitochondrial Mg2+ transport, and MgATP chemistry.
- Propose a unifying framework where magnesium acts as a bioenergetic checkpoint.
- Discuss magnesium's role in metabolic disease, aging, and potential therapeutic strategies.
Main Methods:
- Review of recent advances in renal magnesium handling.
- Analysis of mitochondrial Mg2+ transport mechanisms.
- Examination of MgATP chemistry and its implications.
Main Results:
- Mg2+ availability dictates the functional ATP pool, kinase signaling, and mitochondrial stability.
- Disrupted magnesium homeostasis contributes to insulin resistance, acute kidney injury, and reduced stress tolerance.
- Age-associated mitochondrial magnesium decline may accelerate cellular senescence.
Conclusions:
- Magnesium is a critical bioenergetic checkpoint influencing cellular and organismal health.
- Dysregulation of magnesium homeostasis is implicated in metabolic diseases and the aging process.
- Precision modulation of magnesium-dependent bioenergetics offers novel therapeutic avenues.
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