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Magnesium and aging
1Mario Barbagallo, MD Viale F Scaduto 6/c, 90144 Palermo, Italy. mabar@unipa.it
Abstract:
Over the past decades, the clinical relevance and biological significance of magnesium (Mg) have been documented. Deficiency in Mg, aside from having a negative impact on the energy production pathway required by mitochondria to generate ATP, also reduces the threshold antioxidant capacity of the aging organism and its resistance to free-radical damage. Mg also acts as an antioxidant against free radical damage of the mitochondria. Chronic inflammation and oxidative stress have both been identified as pathogenic factors in aging and in several age-related diseases. Chronic Mg deficiency results in excessive production of oxygen-derived free radicals and low grade inflammation. Aging is very often associated with Mg inadequacy and with increased incidence of many chronic diseases, with muscle loss and sarcopenia, altered immune responses, and vascular and metabolic conditions, such as atherosclerosis, diabetes and the cardiometabolic syndrome. The most common cause of Mg deficit in the elderly population is dietary Mg deficiency, although secondary Mg deficit in aging may also results from many different mechanisms. The aim of the present manuscript is to discuss the mechanisms and consequences of the modifications of Mg metabolism with age, the difficulties in the measurement of Mg status, and to review the current evidences suggesting that age-related chronic Mg deficits may be proposed as one of the physiopathological links that may help to explain the interactions between inflammation, oxidative stress with the aging process and many age-related diseases.
Insights
Magnesium (Mg) deficiency impairs mitochondrial energy production and antioxidant defenses, contributing to inflammation and oxidative stress in aging. Addressing Mg inadequacy is crucial for mitigating age-related diseases and improving healthspan.
Area of Science:
- Gerontology
- Biochemistry
- Cell Biology
Background:
- Magnesium (Mg) is vital for cellular energy production (ATP synthesis) and antioxidant defense mechanisms.
- Mg deficiency exacerbates oxidative stress and chronic inflammation, key factors in aging and age-related diseases.
- Aging is frequently linked to Mg inadequacy, increasing susceptibility to chronic conditions like sarcopenia, diabetes, and cardiovascular disease.
Purpose of the Study:
- To explore the age-related changes in magnesium metabolism and their consequences.
- To discuss challenges in assessing magnesium status in aging populations.
- To review evidence linking chronic Mg deficits to the interplay of inflammation and oxidative stress in aging.
Main Methods:
- Literature review of studies on magnesium metabolism, aging, inflammation, and oxidative stress.
- Analysis of the role of magnesium in mitochondrial function and antioxidant capacity.
- Examination of the link between dietary and secondary magnesium deficits in the elderly.
Main Results:
- Mg deficiency negatively impacts mitochondrial ATP production and reduces antioxidant capacity.
- Chronic Mg deficit promotes excessive free radical production and low-grade inflammation.
- Age-related Mg inadequacy is associated with muscle loss, immune dysfunction, and metabolic disorders.
Conclusions:
- Age-related magnesium deficits represent a significant link between inflammation, oxidative stress, and the aging process.
- Understanding Mg metabolism modifications with age is critical for addressing age-related diseases.
- Targeting magnesium status may offer a therapeutic strategy for mitigating aging-associated pathologies.
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