Related Experiment Video
Updated: Oct 2, 2026

Isolation of Mesenchymal Stem Cells from Human Alveolar Periosteum and Effects of Vitamin D on Osteogenic Activity of Periosteum-derived Cells
Published on: May 4, 2018
Vitamin D depletion following burn injury in children: a possible factor in post-burn osteopenia
Gordon L Klein1, Craig B Langman, David N Herndon
1Department of Pediatrics, University of Texas Medical Branch at Galveston and Shriners Burns Hospital, 77555-0352, USA. gklein@utmb.edu
Insights
Children with severe burns often have low vitamin D levels, contributing to poor bone health. This study highlights the link between vitamin D depletion and reduced bone mineral density in pediatric burn survivors.
Area of Science:
- Pediatric Endocrinology
- Bone Metabolism
- Burn Medicine
Background:
- Children with severe burns (>40% TBSA) exhibit low bone mineral density (BMD) and increased fracture risk.
- Sun avoidance post-burn can lead to vitamin D depletion, potentially causing osteopenia.
Purpose of the Study:
- To investigate vitamin D status in children with severe burns.
- To determine the relationship between vitamin D levels and bone mineral density in this population.
Main Methods:
- Studied 24 children (ages 5-20) with burns >40% TBSA at 2 and 7 years post-burn.
- Measured BMD, serum 25-hydroxyvitamin D (25(OH)D), 1,25-dihydroxyvitamin D (1,25(OH)2D), intact PTH (iPTH), and osteocalcin.
- Some participants received growth hormone therapy.
Main Results:
- Low 25(OH)D levels were prevalent at both 2 and 7 years post-burn.
- Low 1,25(OH)2D was observed at 7 years.
- 25(OH)D levels correlated with BMD z-scores (r=0.53) and inversely with iPTH (r=-0.66) at 7 years.
Conclusions:
- Burned children exhibit low circulating 25(OH)D levels.
- Vitamin D depletion may contribute to the chronic low bone density seen in pediatric burn survivors.
Background:
Children burned > 40% total body surface area (TBSA) have chronically low bone mineral density (BMD) and increased risk for fractures and adult-onset osteoporosis. Because they are advised to avoid sunlight to prevent burn scar hyperpigmentation, we hypothesized that they develop vitamin D depletion, which could contribute to post-burn osteopenia.
Methods:
We studied 24 children, ages 5-20 years, burned > or = 40% TBSA 7.1 +/- 3.8 (SD) years, range 1.9-13.3 years, previously (n = 12) and 2.0 +/- 0.2, range 1.4-2.1 years, previously (n = 12), of which half received recombinant human growth hormone during the first post-burn year. We measured lumbar spine BMD, serum 25-hydroxyvitamin D (25(OH)D), 1,25-dihydroxyvitamin D (1,25(OH)2D), intact PTH (iPTH), and osteocalcin.
Results:
Serum 25(OH)D was low in 10/11 patients and 1,25(OH)2D was low in 5/11 at 7 years post-burn. Serum 25(OH)D was low in 10/12, while 1,25(OH)2D was low in 0/12 at 2 years; osteocalcin was low in 9/12 in the 7-year group; iPTH levels were in the lowest quartile in 5/12 patients at 7 years and 10/12 patients at 2 years. Serum 25(OH)D levels correlated with BMD z-scores, r = 0.53, p < 0.05, and inversely with iPTH levels, r = -0.66, p < 0.05, in the 7-year group.
Conclusion:
Burned children have low circulating levels of 25(OH)D which correlated with BMD z-scores, suggesting that post-burn vitamin D depletion may play a role in the chronically low bone density observed in these children.
Related Concept Videos
Role of Vitamins in Maintaining Bone Health
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Skeleton and Calcium Homeostasis
Hormones and Bone Tissue
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Role of Skin in Vitamin D Synthesis
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin D3(cholecalciferol).
Bone Remodeling