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[Nutritional regulation of serum osteocalcin: study in kwashiorkor]
Insights
Serum osteocalcin, a bone protein, was significantly low in malnourished Senegalese children and controls. Levels increased during nutritional rehabilitation, suggesting a link between osteocalcin and protein-energy status.
Area of Science:
- Biochemistry
- Pediatrics
- Nutritional Science
Context:
- Investigated serum osteocalcin levels in Senegalese children.
- Compared healthy controls with severely malnourished children (kwashiorkor) undergoing nutritional rehabilitation.
Purpose:
- To measure and compare serum osteocalcin levels in different nutritional states.
- To explore the relationship between osteocalcin, nutritional status, and vitamin D.
Summary:
- Serum osteocalcin was markedly decreased in kwashiorkor children upon hospital admission.
- Osteocalcin levels increased fourfold during nutritional rehabilitation in malnourished children.
- Low serum osteocalcin was observed in healthy controls, independent of normal 1,25-dihydroxyvitamin D3 levels.
Impact:
- Suggests serum osteocalcin levels are associated with protein-energy status in children.
- Highlights potential role of osteocalcin as a biomarker for malnutrition.
- Provides insights into bone metabolism during nutritional recovery.
Abstract:
The serum levels of osteocalcin (bone gla protein) in two groups of Senegalese children, healthy controls and severely malnourished (kwashiorkor) children during nutritional rehabilitation, were measured. The serum osteocalcin of all kwashiorkor children was dramatically decreased on admission to hospital, but increased fourfold during rehabilitation. Serum osteocalcin was low in the control group. In both groups these low levels seemed to be independent of those of 1,25-dihydroxyvitamine D3 which were in the normal range. The results suggest that serum osteocalcin levels might be related to protein-energy status.