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Magnesium metabolism and its disorders
1Department of Chemical Pathology, St Thomas' Hospital, London, UK. r.swaminathan@kcl.ac.uk
The Clinical Biochemist. Reviews
|June 24, 2008
Summary
Magnesium deficiency is common in hospitals, affecting 10% of patients. Understanding its causes, effects, and management is crucial for patient health and chronic disease prevention.
Area of Science:
- Biochemistry
- Physiology
- Nephrology
Background:
- Magnesium is the fourth most abundant cation, vital for numerous physiological functions.
- Renal regulation maintains magnesium balance, though mechanisms are not fully understood.
- Magnesium deficiency affects approximately 10% of hospitalized patients.
Purpose of the Study:
- To review the causes, clinical features, and management of magnesium deficiency (hypomagnesemia) and excess (hypermagnesemia).
- To discuss the association between chronic low magnesium and various chronic diseases.
- To explore the therapeutic applications of magnesium in specific medical conditions.
Main Methods:
- Review of existing literature on magnesium homeostasis, deficiency, and excess.
- Discussion of diagnostic methods, including serum magnesium and ionised magnesium.
- Analysis of clinical manifestations and therapeutic uses of magnesium.
Main Results:
- Magnesium deficiency presents with diverse symptoms like hypocalcemia, hypokalemia, and cardiac/neurological issues.
- Chronic low magnesium is linked to diabetes, hypertension, heart disease, and osteoporosis.
- Hypermagnesemia, though less common, can cause hypotension and neuromuscular problems.
Conclusions:
- Accurate assessment and management of magnesium levels are essential for patient care.
- Further research into renal magnesium regulation is needed.
- Magnesium plays a significant role in both acute and chronic disease management.
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