Related Experiment Video
Updated: Jun 19, 2026
11:30
A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro
Published on: June 2, 2022
STUDIES ON CALCIUM AND MAGNESIUM METABOLISM IN DISEASE : I. CALCIUM AND MAGNESIUM METABOLISM IN LEPROSY
F P Underhill1, J A Honeij, L J Bogert
1Laboratories of Experimental Medicine and Radiology of the School of Medicine, Yale University, New Haven.
The Journal of Experimental Medicine
|October 30, 2009
Summary
Leprosy patients retain more calcium as the disease progresses, indicating a need for this mineral. Supplementing calcium may help slow bone damage in leprosy.
Area of Science:
- Biochemistry
- Immunology
- Dermatology
Background:
- Leprosy is a chronic infectious disease primarily affecting the skin and peripheral nerves.
- Bone changes are a common complication in advanced leprosy.
- The role of mineral metabolism, specifically calcium and magnesium, in leprosy pathogenesis is not fully understood.
Purpose of the Study:
- To investigate calcium and magnesium retention in individuals with leprosy.
- To determine if the body's response to calcium and magnesium intake differs in leprosy patients compared to healthy individuals.
- To explore the potential therapeutic benefits of calcium supplementation in managing leprosy-associated bone changes.
Main Methods:
- Comparative analysis of calcium and magnesium levels in leprosy patients and control groups.
- Assessment of mineral retention in relation to leprosy disease stage.
- Evaluation of metabolic responses to varying calcium and magnesium intake.
Main Results:
- Significant calcium retention observed in leprosy patients, correlating with disease severity.
- Less pronounced magnesium retention noted in leprosy patients.
- Leprosy patients exhibit similar metabolic responses to calcium and magnesium intake as normal individuals, apart from the observed retention.
Conclusions:
- Leprosy is characterized by increased calcium retention, suggesting a potential deficiency.
- Calcium supplementation may serve as an adjunctive therapy to mitigate bone demineralization in leprosy.
- Further research into mineral metabolism in leprosy is warranted to optimize patient care.
Related Concept Videos
01:33Introduction to Electrolytes
In humans, electrolytes play a vital role in various physiological processes. Balancing electrolyte levels is essential for normal body functions; their imbalance can be life-threatening. The major electrolytes include sodium, potassium, chloride, calcium, phosphate, and bicarbonate. They are primarily involved in physiological processes, such as nerve signal transmission, membrane trafficking, muscle contraction, buffering body fluids, and balancing water levels in the body.
Role of Sodium
One...
Role of Sodium
One...
01:21Skeleton and Calcium Homeostasis
Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
01:31Essential Minerals for Bone Health
The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
01:20Study Designs in Epidemiology
Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
01:21Antiprotozoal Agents
Leishmaniasis is a widespread parasitic disease caused by several Leishmania species. It affects millions of people each year and remains a major public health problem in endemic regions. First-line treatment relies on pentavalent antimonials, including meglumine antimoniate and sodium stibogluconate. Even so, how these drugs work has not been fully clear, especially their interaction with parasite-specific biochemical pathways. One key target is trypanothione reductase (TR), an enzyme that...
01:27Roles of Electrolytes: Calcium and Phosphate
Calcium and phosphate are essential electrolytes in the human body, with calcium being the most abundant mineral. Around 99% of the body's calcium is stored in the skeleton and teeth, forming a crystal lattice of mineral salts in combination with phosphates. Calcium plays crucial roles in various bodily functions such as blood clotting, neurotransmitter release, muscle tone maintenance, and nervous and muscle tissue excitability.
The calcium concentration in blood plasma is primarily regulated...
The calcium concentration in blood plasma is primarily regulated...